JP7416610B2 - panel fastener - Google Patents

Description

The present invention relates to a panel fastener used for joining two panels.

Conventionally, various panel fasteners have been proposed for quickly and easily joining two panels together when assembling a prefabricated rack or cabinet made up of a plurality of panels.

This type of panel fastener is disclosed in Patent Document 1.
The fastener of this document 1 has a central rotating shaft, a locking piece provided at the leading end of the central rotating shaft in the panel insertion direction, a fastener rotation operation part provided at the end of the central rotating shaft in the panel insertion direction, and a central rotating shaft. It is formed to extend from the shaft in the same direction as the locking piece, and includes a holding mechanism that fixes the fastener to the mounting panel and a locking part that restricts rotation of the fastener.
In this case, a groove portion that can be operated with a coin or a flathead screwdriver is formed on the front side of the fastener rotation operation portion. Further, as a holding mechanism, an arm portion is formed perpendicularly to the central rotation axis.
On the other hand, a mounting hole is formed at the fastener mounting position of the mounting panel. In this case, the mounting hole includes a rotational shaft support portion consisting of a pair of protruding portions that hold the central rotational shaft of the fastener, a penetration portion through which the lock piece and arm portion can pass, and a locking portion formed on the fastener. and a rotation regulating part that locks the rotation part. The pair of protruding parts of the rotating shaft support part form a small diameter hole in order to hold the central rotating shaft. One rotation regulating section regulates the rotation of the fastener in a counterclockwise direction, and the other rotation regulating section regulates the rotation of the fastener in a clockwise direction, and regulates the maximum rotation angle of the fastener to 90 degrees. Furthermore, a locking hole is formed at the fastener attachment position of the main body panel. In this case, the locking hole has a rotation shaft penetration part through which the central rotation shaft of the fastener can pass, and a lock piece penetration part through which the lock piece can pass. Further, bent portions are formed at both ends of the main body panel, and the space formed between the main body panel and the mounting panel absorbs the thickness of the arm portions of the fastener.
In this way, insert the fastener into the mounting hole formed in the mounting panel from the front side of the mounting panel, rotate it counterclockwise to hold the fastener, and then bring the back side of the mounting panel into contact with the main body panel. The mounting panel is fixed to the main body panel by inserting the tip of the fastener into a locking hole formed in the main body panel and rotating it clockwise. With such a panel mounting structure, two panels can be quickly and easily joined.

Japanese Patent Application Publication No. 2010-270770

However, with the above-mentioned conventional panel fastener, when attaching the panel fastener to the mounting holes of two panels, it is passed through the mounting hole of each panel and rotated to fix it, so a tool is required to rotate the panel fastener. There is a problem in that the installation work of panel fasteners is complicated. In addition, because one of the two panels has a mounting hole and the other has a locking hole, and each hole has a different special shape, the shape of the hole is complicated and the cost of drilling the hole increases. There's a problem. Furthermore, when it is necessary to remove this panel fastener from the mounting holes of two panels, it is necessary to rotate the panel fastener and pull it out from the mounting holes of each panel, which is the opposite of the installation work, which makes the removal work complicated. The problem is that it has no choice but to do so.

The present invention solves these conventional problems.In this type of panel fastener, the panel fastener can be inserted into the mounting hole of two panels with one push and locked without using any tools. To simplify the process, to make it possible to join two panels together more quickly and easily than before, to make the mounting holes of the two panels simple in shape, and to keep the cost required for drilling them low; It is easy to remove the panel fasteners after they have been installed in the mounting holes of the two panels, and it is not possible to easily remove the panel fasteners after they have been installed in the mounting holes of the two panels for security reasons. The purpose is to prevent such occurrences.

In order to achieve the above object, the present invention
Two panels with mounting holes formed thereon are put together, the mounting hole is passed through the mounting hole of one of the two panels to the mounting hole of the other panel, and the edge or edge of the mounting hole of the other panel is passed through the mounting hole of one of the two panels. In a panel fastener that is secured around the periphery and joins the two panels,
a mounting plate having a plane larger than the mounting hole of the one panel;
a pair of bearing plates projecting parallel to each other so that they can be inserted through each of the mounting holes of each panel, leaving a peripheral edge of the plane as a flange on a plane of the mounting plate, and having a groove in the middle of the projecting end; a pedestal having a shaft insertion part located in the center between a pair of bearing plates, protruding from the plane of the mounting plate to the bottom of the groove of each bearing plate or in the vicinity thereof, and penetrating from the protruding end surface to the mounting plate; a bearing /pedestal block in which each of the bearing plates extending on both sides of the pedestal serves as a pair of bearings;
Each of the bearing/pedestal block is formed into a substantially piece-like shape so as to fit between the pair of bearings, and the other end thereof is arranged between the pair of bearings with one end facing toward the protruding end of each bearing. With the parts facing the mounting plate side, the protruding ends of the respective bearings are rotated to a position closer to the mounting plate side than the position of the groove on both sides facing the respective bearings. A locking pawl is provided from an outer surface portion that appears outward from between both side edges of each bearing to the other end edge in a state where the center of movement is provided and the pair of bearings are fitted and arranged between each pair of bearings. and are rotatably supported on the protruding end sides of each pair of bearings via a pair of shafts, so that each of the locking claws is connected to each side edge of each pair of bearings. A pair of hooks arranged so as to be able to appear from between;
a spring member that is interposed between the pair of hooks and the pedestal and biases each of the hooks to rotate so as to normally protrude from between the side edges of each of the bearings;
The shaft insertion portion is inserted into the shaft insertion portion of the pedestal of the bearing/pedestal block, has a release lever attachment portion protruding from the protruding end surface of the pedestal at one end, and has an opening in the mounting plate at the other end. a shaft having a release lever rotary operating section rotatably disposed around the circumference, a release handle detachably connected to the release lever rotating operating section in a locking manner by elastic engagement of a locking groove and a locking pawl; fixed to the release lever attachment portion of the shaft so as to be rotatable together with the shaft, and disposed so as to be engageable between one ends of the pair of hooks between the respective grooves of the pair of bearing plates on the protruding end surface of the pedestal; By the rotation of the release lever rotary operation section, the base is rotated by the protruding end surface to push apart one ends of each of the hooks, and the locking claw of each hook is moved between each side edge of each pair of bearings. A release lever that can be immersed,
Equipped with
Passing the bearing/pedestal block through each of the mounting holes of the two panels with one push, engaging the locking claw of each of the hooks at or around the edge of the mounting hole of the other panel,
Further, the release handle is connected and locked to the release lever rotation operation section by elastic engagement of the locking groove and the locking pawl, and the release lever rotation operation section is rotated by the release handle, thereby each of the above-mentioned releasing the engagement between the locking claw of the hook and the edge or around the edge of the attachment hole of the other panel;
The gist is that.

Moreover, it is preferable that each part of this panel fastener is configured as follows.
(1) The release lever rotation operating part of the shaft is formed in a disc shape, and has locking grooves at mutually opposing positions on its peripheral edge or within one surface, and the release handle is connected to the base plate and the a pair of support plates extending parallel to each other from both sides of one surface of the base plate; and each main body is arranged symmetrically between the support plates on one side and the other side of each of the support plates; a pair of locking pawls, each of which is formed into a top-like shape, protrudes from between the tips of each of the support plates at one end of each of the main body parts, and is removable from each of the locking grooves of the release lever rotation operating section; each of the main body parts is arranged between the support plates so that each of the locking pawls is rotated by the rotation of each of the main body parts via a rotation shaft. , which is capable of engaging and detaching from each of the locking grooves of the release lever rotation operating section and is surrounded by an outer surface portion that appears outward from between each side of each of the support plates of each of the main body portions and the other end of each of the main body portions. a pair of operating levers to which a portion of each of the main body parts or a portion thereof is attached so as to be retractable from between each side of each of the supporting plates; The pawl is rotatable so as to be able to engage with each of the locking grooves and to allow a portion of each of the main body portions of each of the operating levers or a portion thereof to normally protrude from between each side portion of each of the support plates. It has a spring member that applies pressure.
(2) The center of rotation of each hook is located in the middle between the one end edge and the other end edge of the hook, and the other end edge of each hook is centered around the center of the circle. It is formed into an arcuate shape located closer to one end edge of each hook than the center of rotation of the hook and closer to the inner surface on the opposite side from the outer surface.
(3) The outer surface of each hook is formed parallel to both side edges of each bearing plate in a state in which each hook is inserted and fitted between both side edges of each bearing plate. One end edge has an inner surface protruding more than the outer surface, and is formed obliquely like the tip of a sword; one end of the inner surface of the hook is formed substantially parallel to the outer surface, and an intermediate portion thereof is formed at an angle substantially parallel to the outer surface. Together with one end of the inner surface, the inner surface has a substantially doglegged shape and is formed obliquely in a direction away from the outer surface, and the other end is formed substantially parallel to the outer surface.
(4) A cylindrical groove is formed on the inner surface of each hook, a cylindrical hole is formed on each side surface of the pedestal facing the inner surface of the hook, and a coil spring is employed as the spring member; The coil spring is interposed between each hook and the pedestal, with one end held in each groove of each hook, and the other end pressed against the outer peripheral surface of the shaft through each hole of the pedestal. Ru.
In this case, a groove-shaped receiving part is formed at a circumferentially symmetrical position on the outer circumferential surface of the shaft, into which the other end of each coil spring can fit, and the other end of each coil spring is passed through a hole in a pedestal to each of said shaft parts. Preferably, it is held in a receiving part.
In addition, in this case, before or after the bearing/pedestal block is passed through each mounting hole of the two panels together with each hook, the locking claw of each of the hooks is inserted between each side edge of each bearing of the bearing/pedestal block. When the coil spring is protruded from the mounting plate, the coil spring can be deformed into a convex arc shape toward the mounting plate, and the bearing/pedestal block is passed through the mounting holes of the two panels together with the hooks, and the hooks are engaged with each other. When the retaining pawl is inserted between the respective bearings, the coil spring can be deformed into a convex arc shape on the side opposite to the mounting plate, and the groove of each of the hooks extends from the inner surface of each of the hooks. Each hook is formed obliquely at a predetermined angle in the side direction of the other end edge, and a portion of the inner circumferential surface of the groove of each hook on the other end edge side and/or one end edge side of the hook is formed. It is preferable that each of the hooks is formed with an inclination of a predetermined angle so that the diameter gradually increases from the inner side of the groove toward the opening side.
(5) The release lever is formed into a substantially boat-shaped block shape, with both end sides of both side surfaces engaged with each hook tapering gradually toward both ends.
(6) The release lever is formed such that both end sides of the surface facing the protruding end surface of the pedestal are inclined so as to gradually move away from the protruding end surface of the pedestal in the direction of both ends.
(7) The mounting plate consists of a rectangular plate that is slightly larger than the mounting hole of one panel, and each pair of bearing plates of the bearing/pedestal block is large enough to fit into each mounting hole of the two panels. Each mounting hole of the two panels is formed into a rectangular shape having a predetermined length so as to be able to pass through each of the mounting holes.

According to the panel fastener of the present invention, the above-described configuration provides the following special effects unique to the present invention.
(1) Panel fasteners can be passed through and locked into the mounting holes of two panels with one push without using any tools, simplifying the installation work and making it faster and easier than ever to assemble two panels. Can be joined to.
(2) The mounting plate is a rectangular plate that is slightly larger than the mounting hole of one panel, and each of the pair of bearing plates is large enough to fit into each mounting hole of the two panels, and the pair of bearing plates are passed through each of the mounting holes. By making the mounting holes of the two panels into square shapes with a predetermined length, it is possible to make the mounting holes of the two panels into a simple shape, which reduces the amount of time required to drill the holes. Costs can be kept low.
(3) When removing this panel fastener from two panels, if you can directly reach the engagement position between the locking claw of each hook and the edge or around the edge of the mounting hole of the other panel, please remove the panel fastener from the other panel. If you push each hook directly between the side edges of each pair of bearings on the bearing/pedestal block by hand (using your thumb and forefinger, etc.) at or around the edge of the mounting hole in the panel, each hook and The panel fastener can be easily removed from the two panels by releasing the engagement with the edge or around the edge of the attachment hole of the other panel and pulling the panel fastener out of the attachment hole of each panel.
(4) When removing this panel fastener from two panels, your hands cannot reach the engagement position between the locking claw of each hook and the edge or around the edge of the mounting hole of the other panel, and each hook is removed. Even if it is not possible to press the release handle directly at or around the edge of the mounting hole on the other panel by hand, the release handle can be connected and locked to the release lever rotation operation section, and the release handle can be used to rotate the release lever rotation operation section. As a result, the release lever is rotated by the protruding end surface of the pedestal of the bearing/pedestal block and spreads apart one end of each hook, while each hook is recessed between each side edge of each pair of bearings of the bearing/pedestal block. When each hook is disengaged from the edge or around the edge of the mounting hole on the other panel, the release handle can be used to pull the panel fastener out of the mounting hole on each panel, and the panel fastener can be removed between the two panels. can be easily removed from.
(5) As mentioned above, this panel fastener can be easily attached to and removed from two panels. By preventing the panel fastener from being pushed directly between the side edges of each pair of bearings in the bearing/pedestal block by hand, this panel fastener cannot be easily removed without using the release handle, thereby increasing security. This makes it possible to respond when necessary.

A diagram showing the overall configuration of a panel fastener according to an embodiment of the present invention ((a) is a perspective view as seen from the bearing/pedestal block side (b) is a perspective view as seen from the mounting plate side) Diagrams showing the configuration of each part of the same panel fastener ((a) is a rear view (b1), (b2) is a side view (b3), (b4), (b5) is a side sectional view, and (c) is a plan view) A diagram showing the configuration of the panel fastener, especially the hook ((a1) is a side view (a2) is a side sectional view (b) is a view of the inner surface) A diagram showing the structure of the panel fastener, especially the shaft ((a1) is a rear view (b1) is a side view (b2) is a side sectional view (c) is a front view) A diagram showing the configuration of the panel fastener, especially the release lever ((a) is a rear view (b1) is a side view (b2) is a side sectional view (c) is a front view) Diagram showing an example of how the same panel fastener is used to assemble a prefabricated rack. A diagram (perspective view) showing how to use the same panel fastener and the effect of the same panel fastener in the same usage example of the same panel fastener. A diagram (cross-sectional view) showing how to use the same panel fastener and the effect of the same panel fastener in the same usage example of the same panel fastener. A diagram (perspective view) showing how to use the same panel fastener and the effect of the same panel fastener in the same usage example of the same panel fastener. A diagram (cross-sectional view) showing how to use the same panel fastener and the effect of the same panel fastener in the same usage example of the same panel fastener.

Next, a mode for carrying out the invention will be explained using the drawings.
1 and 2 show the overall structure of the panel fastener, and FIGS. 3, 4, and 5 show the structure of each part of the panel fastener.
Note that the panel referred to here is, for example, a component (member) that constitutes an assembly type rack or cabinet. It does not matter whether this panel is made of metal or synthetic resin.

As shown in Figure 1, the panel fastener F is inserted between two panels with mounting holes formed in them, passed through the mounting hole of one of the two panels to the mounting hole of the other panel, and then attached to the other panel. It is of the type that locks at or around the edge of the hole to join the two panels.

As shown in FIGS. 1 and 2, this panel fastener F includes a mounting plate 1, a bearing/pedestal block 2A consisting of a pair of bearing plates 2 and a pedestal 22, a pair of hooks 3, a spring member 5, The shaft 7 has a release lever attachment part 71 at one end and a release lever rotation operating part 72 and a release handle 8 at the other end, and a release lever 73.

Each part of the panel fastener F is constructed as follows.
(1) The mounting plate 1 has a larger plane than the mounting hole in one panel.
(2) In the bearing/pedestal block 2A, a pair of bearing plates 2 are protruded in parallel on the plane of the mounting plate 1 so that they can be inserted through each mounting hole of each panel, leaving the peripheral edge of the plane as a flange 11. The end 201 has a groove 202 in the middle, and the pedestal 22 protrudes from the plane of the mounting plate 1 at the center between the pair of bearing plates 2 to the bottom of the groove 202 of each bearing plate 2 or the vicinity thereof, and the protruding end surface 221 Each bearing plate 22 having a shaft insertion portion 220 penetrating from to the mounting plate 1 and extending on both sides of the pedestal 22 constitutes a pair of bearings 23.
(3) The pair of hooks 3 are each formed into a substantially piece-like shape so that they can be fitted between each pair of bearings 23 of the bearing/pedestal block 2A, and one end edge 301 is inserted between each pair of bearings 23. from the position of the groove 202 on the protruding end side of each bearing 23 on both sides facing each bearing 23 with the other end edge 302 facing the mounting plate 1 side. The center of rotation is provided at a position closer to the mounting plate 1 side, and an outer surface portion 303 that appears outward from between the opposite side edges 203 and 204 of each bearing 23 in a state where it is fitted between each pair of bearings 23. A locking pawl 31 extends from the other end edge 302 and is arranged symmetrically to fit between the bearings 23, and is rotatably supported on the protruding end side of each pair of bearings 23 via a pair of shafts 4. The locking claws 31 are arranged so as to be retractable from between the side edges 203 and 204 of each pair of bearings 23.
(4) The spring member 5 is interposed between the pair of hooks 3 and the pedestal 22, and is rotatably biased so that it can protrude from between the side edges 203 and 204 of each bearing 23 with each hook 3 in the normal state. do.
(5) The shaft 7 is inserted into the shaft insertion portion 220 of the pedestal 22 of the bearing/pedestal block 2A, the release lever mounting portion 71 at one end protrudes from the protruding end surface 221 of the pedestal 22, and the release lever rotation operating portion at the other end. 72 is rotatably arranged around the shaft insertion part 220 opened in the mounting plate 1, and the release handle 8 is locked in the release lever rotation operating part 72 by elastic engagement between the locking groove 720 and the locking pawl 832. Detachably connected.
(6) The release lever 73 is fixed to the release lever mounting portion 71 of the shaft 7 so as to be rotatable together with the shaft 7, and a pair of hooks 3 are provided between each groove 202 of the pair of bearing plates 2 on the protruding end surface 221 of the pedestal 22. The locking claw 31 of each hook 3 is disposed so as to be engageable between the ends thereof, and is rotated by the protruding end surface 221 of the pedestal 22 by the rotation of the release lever rotation operation section 72 to push apart the one ends of each hook 3. is inserted between the side edges 203 and 204 of each pair of bearings 23.

Moreover, FIGS. 1 and 2 show a specific example of each part of the panel fastener F.

The mounting plate 1 consists of a square, specifically rectangular, flat plate that is slightly larger than the mounting hole in one panel.

The bearing/pedestal block 2A is constructed such that each of the pair of bearing plates 2 is integrally formed on one plane of the mounting plate 1, and the edge 101 on each long side of the mounting plate 1 is left as a flange 11 on the entire periphery of this plane. , 102, at a position slightly inside the edges 103, 104 on each short side, parallel to the edges 101, 102 on each long side, with a size that can be fitted into each mounting hole of the two panels. A rectangular shape having a predetermined length that can be passed through each of the mounting holes, specifically a rectangular shape (in this case, both edges parallel to the edges 101 and 102 on the long sides of the mounting plate 1 are defined as long sides) It has a rectangular shape with side edges 201 (that is, protruding ends 201) and 201b, and edges perpendicular to the long side edges 101 and 102 of the mounting plate 1 as short side edges 203 and 204. ), it is formed into a flat plate shape as a whole.

The pedestal 22 is formed integrally with the pair of bearing plates 2 on the plane of the mounting plate 1, and extends from the plane of the mounting plate 1 to the bottom or the vicinity of the groove 202 of each bearing plate 2 in the center between the pair of bearing plates 2 in a prismatic shape. A shaft insertion portion 220 is formed in a cylindrical shape on the axis of the pedestal 22 so as to penetrate from the protruding end surface 221 to the mounting plate 1 . In this case, a circular recess 105 larger than the diameter of the shaft insertion part 220 is formed around the opening of the shaft insertion part 220 on the mounting plate 1 side, into which a release lever rotation operation part 72 of the shaft 7, which will be described later, can fit. Ru. Additionally, grooves 106 are formed at the inner peripheral edge of the recess 105 at positions corresponding to the centers of the edges 103 and 104 on the short sides of the mounting plate 1, facing each other. These grooves 106 are formed outwardly along the inner circumferential edge of the recess 105 to have substantially the same size and shape as each locking groove (insertion groove) of a release lever rotation operating portion 72 of the shaft 7, which will be described later. Further, in this case, a cylindrical hole 223 is formed in the longitudinally intermediate portion of both side surfaces 222 of the base 22 so that a coil spring 5, which will be described later, can be fitted therein. Each bearing plate 2 extending on both sides of this pedestal 22 (both sides of both sides 222) is a pair of bearings 23, and the protruding end side of each bearing 23 is closer to the mounting plate 1 than the position of the groove 202. Shaft insertion portions 20 through which the shaft 4 can be inserted are formed as circular holes at predetermined positions near the center. In this case, one shaft insertion portion 20 of the pair of bearings 23 is formed to have a slightly smaller diameter than the other shaft insertion portion 20, and the outer (in other words, outward) plane of one of the bearings 23 A tapered recess 200 (see FIG. 1(a)) is also formed along the entire peripheral edge of the insertion portion 20. On the other hand, one end of each shaft 4 is formed to have a smaller diameter than the other end, one end is passed through one shaft insertion part 20 of each bearing 23, the other end is passed through the other shaft insertion part 20 of each bearing 23, One end is caulked and fixed within the tapered recess 200. Due to the shape of the mounting plate 1 and the bearing/pedestal block 2A, each of the mounting holes 61 and 62 (see FIG. 7) of the two panels P1 and P2 has a rectangular shape so that a pair of bearing plates 2 can be fitted thereinto. is opened in a simple rectangular shape. In this case, the length of each mounting hole 61, 62 in the long side direction is approximately the same as or slightly larger than the length of the long side edge 201 of each bearing plate 2, and the length of the edge in the short side direction The dimension of the opening is approximately the same as or slightly larger than the dimension between the outer (outward facing) surfaces of each bearing plate 2.

Each of the pair of hooks 3 has a size that can be placed within the pair of bearings 23, and has a symmetrical top shape with the pedestal 22 as the center of symmetry. As shown in FIG. 3, the centers of rotation of these hooks 3 are provided near the one end edge 301 at the intermediate portion between the one end edge 301 and the other end edge 302 of the hooks 3, and the shaft 4 is inserted therein. Possibly a shaft insertion portion 30 is formed. The other end edge 302 of each hook 3 corresponding to the mounting plate 1 side has the center of the circle closer to the one end edge 301 of each hook 3 than the rotation center of each hook 3, and the inner surface on the opposite side from the outer surface part 303. It is formed in an arc shape located near the portion 304.

Further, the outer surface 303 of each hook 3 is formed as a flat surface with a linear cross section parallel to both side edges 203 and 204 of each bearing plate 2, and one end edge 301 of each hook 3 is formed as a flat surface parallel to both side edges 203 and 204 of each bearing plate 2. The inner surface portion 304 side is protruded and is formed obliquely in the shape of the cutting edge of a sword, one end side of the inner surface portion 304 of each hook 3 is formed approximately parallel to the outer surface portion 303, and the intermediate portion is approximately parallel to the one end side of the inner surface portion 304. It has a dogleg shape and is formed obliquely in a direction away from the outer surface portion 303, and the other end side is formed substantially parallel to the outer surface portion 303 in cross section. A cylindrical groove 33 is formed in the inner surface 304 of each hook 3 so as to be able to hold one end of a coil spring as a spring member 5 to be described later.

The spring member 5 employs a coil spring (hereinafter referred to as the coil spring 5). One end of the coil spring 5 is held in each groove 33 of each hook 3, and the other end is pressed against the shaft 7 through the hole 223 of the pedestal 22. and is interposed between each hook 3 and the pedestal 22. Since the coil spring 5 is used as the spring member, each groove 33 of each hook 3 can be used as a bearing/pedestal when the panel fastener F is attached to each mounting hole of two panels, as shown in FIG. Before or after the block 2A is passed through each mounting hole of the two panels together with each hook 3, each locking claw 31 of each hook 3 is inserted between each side edge 203 of each bearing plate 2 of the bearing/pedestal block 2A, 204, the coil spring 5 can be deformed into a convex arc shape toward the mounting plate 1 side, and the bearing/pedestal block 2A is passed through each mounting hole of the two panels together with each hook 3, and each hook When the locking claws 31 of 3 are inserted between the side edges 203 and 204 of each bearing plate 2, the coil springs 5 can be deformed into a convex arc shape on the side opposite to the mounting plate 1. The groove 33 of each hook 3 is formed at a predetermined angle from the inner surface 304 of each hook 3 to the other end edge 302 of each hook 3 at a predetermined angle in the lateral direction. A part 331 of the inner circumferential surface on the 302 side and/or the one end edge 301 side is formed with an inclination of a predetermined angle such that the diameter gradually increases from the back side of the groove 33 toward the opening side.

The shaft 7 is formed into a cylindrical shape having approximately the same diameter as the inner diameter of the shaft insertion portion 220 so as to be able to be inserted into the shaft insertion portion 220 of the base 22 . Further, as shown in FIG. 4, groove-shaped receiving portions 701 are formed on the outer circumferential surface of the shaft 7 at predetermined symmetrical positions in the circumferential direction, into which the other end of each coil spring 5 can fit. The other end of the spring 5 is passed through the hole 223 of the base 22 and held by each receiving portion 701 of the shaft 7. In this case, each receiving portion 701 is formed as a groove having an inner diameter substantially the same as the diameter of the coil spring 5.

The release lever attachment part 71 of the shaft 7 has a part of the outer peripheral edge facing one end of the shaft 7 in the circumferential direction formed parallel to each other with a straight cross section, and the remaining part formed symmetrically with an arcuate cross section. A screw hole 710 is cut on the axis from.

The release lever rotation operation part 72 of the shaft 7 is formed in a disc shape at the other end of the shaft 7, and has locking grooves 720 at mutually opposing positions on the peripheral edge thereof. In this case, the release lever rotation operating portion 72 is formed into a circular plate shape that is slightly larger than the cross section of the shaft 7. Each locking groove 720 is located at a position facing each receiving part 101 of the shaft insertion part 220 in a plan view (viewed from the axial direction of the shaft 7) at the peripheral edge of the release lever rotation operation part 72. An insertion groove 721 formed parallel to the axis of the shaft 7 in a half of the outward facing surface of the release lever 72, and an insertion groove 701 formed in a half of the inward facing surface of the release lever rotation operation part 72 on the back side. It consists of an engagement groove 722 that continuously extends perpendicularly to the insertion groove 721 in the axial direction of the shaft 7 .

The release handle 8 of the shaft 7 is formed separately from the shaft 7 and includes a base plate 81, a pair of support plates 82, a pair of operating levers 83, and a spring member 84.

The base plate 81 is formed into a disk shape. In this case, the base plate 81 is formed into a rectangular plate shape that is slightly larger than the release lever rotation operating section 72.

The pair of support plates 82 extend in parallel from both sides of one surface of the base plate 81 . In this case, each of the pair of support plates 82 is formed into a rectangular plate shape with a predetermined length approximately the same as the pedestal 22 and a predetermined width slightly smaller than the diameter of the release lever rotation operating portion 72. They are formed on both sides of one surface of the base plate 81, spaced apart from the center by the same predetermined dimension in the width direction, and perpendicular to the one surface. Further, in this case, a center plate 821 is provided at the center in the width direction of each support plate 82 between the pair of support plates 82 to connect each support plate 82 and divide the space between each support plate 82 into two spaces. This central plate 821 extends from one surface of the base plate 81, and a hole 822 that communicates the two spaces is formed in the middle part in the direction in which it extends, in this case, in the center in the direction in which it extends. In addition, grooves 823 each having an arcuate cross section are formed on both side surfaces of the center plate 821 on the front end side of the center hole 822. A rotation shaft insertion portion 824 is also formed at a predetermined position on the distal end side of each support plate 82 corresponding to the center position of the circular arc of these grooves 823 .

Each of the pair of operating levers 83 is formed into a top shape such that a main body portion 831 can be arranged symmetrically between the support plates 82 on one side and the other side of each support plate 82. Each main body part 831 has a pair of locking claws 832 that protrude from between the tips of each support plate 82 at one end of the part 831 and can be engaged with and detached from each of the locking grooves 720 of the release lever rotation operating part 72. The locking pawls 832 are rotated between the respective support plates 82 on the distal end side of the support plates 82 via the rotation shafts 833 by the rotation of the respective main body parts 831, and the respective locking claws 832 are rotated between the respective support plates 82 to the distal end side of each support plate 82. One part of each body part 831 is removably engaged with the locking groove 720 and is surrounded by an outer surface part 831a that appears outward from between each side of each support plate 82 of each body part 831 and the other end 831b of each body part 831. A portion 831c is attached to each side of each support plate 82 so as to be removable. In this case, each operation lever 83 is arranged so that each main body part 831 can be placed in two spaces between each support plate 82 in the direction in which each support plate 82 extends, which is approximately the same as the length of each space and slightly larger than the width of each space. Each plate is formed into a long substantially trapezoidal plate shape, and has an arc-shaped convex portion 831e that can abut along the concave groove 823 in a portion corresponding to the concave groove 823 of the center plate 821 on the tip side of the inner side surface portion 831d. It is formed. In each main body portion 831, a rotating shaft insertion portion 831f is provided at a position that is the center of this circular arc. Further, each main body portion 831 is also provided with a receiving portion 831g for a coil spring at the rear end side of each convex portion 831e (in this case, approximately at the longitudinal center of the inner surface portion 831d). Each locking claw 832 can be inserted into the insertion groove 721 of each locking groove 720 of the release lever rotation operation part 72 from the outer surface part 831a side at the tip of each main body part 831, and can be engaged with the engagement groove 722. Each main body portion 831 is formed in a hook shape extending inward in a substantially L-shape.

The spring member 84 is interposed between each operating lever 83 and normally engages each locking pawl 832 of each operating lever 83 with each engaging groove 722 of each locking groove 720 of the release lever rotation operation section 72. A portion 831c of each main body portion 831 of each operating lever 83 is normally rotated and urged to be able to protrude from between each side portion of each support plate 82. In this case, a coil spring is employed as the spring member 84 (hereinafter referred to as coil spring 84). The coil spring 84 is passed through the hole 822 of the center plate 821 between the pair of support plates 82, and one end is held in the receiving part 831g of one operating lever 83, and the other end is held in the receiving part 831g of the other operating lever 83. It is held and interposed between each operating lever 83.

Thus, in the release handle 8, the pair of operation levers 83 are arranged symmetrically between the pair of support plates 82 with the center plate 821 between the support plates 82 as the center of symmetry, and the distal end side of each support plate 82, each main body part 831 The rotation shaft 833 is inserted into each of the rotation shaft insertion portions 824 and 831f on the tip side, and is rotatably assembled between the support plates 82, and the coil spring 84 is passed through the hole 822 of the center plate 821, The operating levers 83 are interposed between the receiving portions 831g of the operating levers 83, and each operating lever 83 is rotated outwardly, and normally a portion 831c of each operating lever 83 is rotated outwardly from between each side of each supporting plate 82. is prominent. With this configuration, by pushing the main body part 831 of each operating lever 83 that projects outward from between each side of each support plate 82 with a finger of the hand toward the center plate 821 between each support plate 82, Each locking pawl 832 of each operating lever 83 is rotated outward so that it can be inserted into each insertion groove 721 of the release lever rotation operation section 72, and the pushing operation of each operating lever 83 is released. After the locking pawl 832 is inserted into each insertion groove 721 of the release lever rotation operating portion 72, the locking claw 832 is rotationally biased inward so as to be able to engage with each engagement groove 722.

As shown in FIG. 5, the release lever 73 is formed in a substantially boat-shaped block shape, with both end sides of both side surfaces 731 engaged with each hook 3 tapering gradually toward both ends. Both end sides of a surface (back surface) 735 of the release lever 73 facing the protruding end surface 221 of the pedestal 22 are formed in an inclined shape that gradually separates from the protruding end surface 221 of the pedestal 22 in both end directions. In this case, the tapered shape of both sides 731 of the release lever 73 that is engaged with each hook 3 is tapered to such an extent that both ends of the both sides 731 can be smoothly engaged with the inner surface 304 of each hook 3. The inclined shape of both ends of the surface (back surface) 735 of the release lever 73 facing the protruding end surface 221 of the pedestal 22 allows the release lever 73 to smoothly pivot (rotate) relative to the protruding end surface 221 of the pedestal 22. ) It is sufficient if the shape is as inclined as possible. In this way, the release lever 73 can be smoothly rotated at the protruding end surface 221 of the pedestal 22 (in other words, at a position close to the rotation center of the release lever 73). Further, a mounting screw insertion hole 732 is bored between the center of the front surface 736 and the center of the back surface 735 of the release lever 73, and a recess 733 is formed around the opening of the mounting screw insertion hole 732 on the back surface 735 side. The basic shape is a circle that is slightly larger than the diameter of the mounting screw insertion hole 732 so that the release lever mounting portion 71 at one end can be fitted, and a portion of the inner peripheral edge facing in the circumferential direction is made parallel to each other and has a straight cross section. It is formed with a symmetrical arc-shaped cross section.

Each part of the panel fastener F has such a configuration, and a pair of hooks 3 are arranged symmetrically between each pair of bearings 23 with the pedestal 22 between each bearing plate 2 as the center of symmetry, and the protruding end of each bearing plate 2 Each shaft insertion part 20 on the 201 side and the shaft insertion part 30 of each hook are combined, and the shaft 4 is passed through each of these shaft insertion parts 20 and 30, and is rotatably supported between each bearing 23. , assembled. In this case, one end of each shaft 4 is caulked and fixed within one tapered groove 200 of each bearing 23, as described above. Further, the shaft 7 is passed through the opening on the mounting plate 1 side through the shaft insertion portion 220 of the pedestal 22 from the release lever attachment portion 71 at one end, and the release lever attachment portion 71 at one end is projected from the protruding end surface 221 of the pedestal 22. The release lever rotation operation part 72 at the other end of the shaft 7 is fitted into the recess 105 around the opening on the mounting plate 1 side, and the shaft 7 is rotatably inserted into the shaft insertion part 220 of the base 22. At this time, a coil spring 5 is interposed between each hook 3 and each receiving part 701 of the shaft 7 through the hole 223 of the pedestal 22, so that the shaft 7 is temporarily fixed and does not come off from the pedestal 22. . Then, the release lever attachment part 71 of the shaft 7 protruding from the protruding end surface 221 of the pedestal 22 is fitted into the recess 733 from the back 735 side of the release lever 73, and is attached to the mounting screw insertion hole 732 from the front 736 side of the release lever 73. The release lever 73 is integrally attached to the shaft 7 by passing the screw 734 and fastening it into the screw hole 710 at one end of the shaft 7 .

In this way, the panel fastener F passes the bearing/pedestal block 2A together with each hook 3 through each mounting hole of the two panels with one push, and the locking claw 31 of each hook 3 is attached to the edge of the mounting hole of the other panel or Also, the release handle 8 is connected and locked to the release lever rotation operation part 72 by the elastic engagement of the locking groove 720 and the locking pawl 832, and the release lever rotation operation part 72 is connected to the release handle 8. By rotating the locking claw 31 of each hook 3, the engagement between the locking pawl 31 of each hook 3 and the edge or around the edge of the mounting hole of the other panel is released.

6 to 11 illustrate the case where the panel fastener F is used for assembling a prefabricated rack R. As shown in Fig. 6, this rack R also consists of a top panel, a bottom panel, left and right side panels, a front door panel, and a back panel, and a square (rectangular) shape is installed at a fixed position between each panel. Holes are drilled, the mounting holes of each panel are aligned, and panel fasteners F are inserted and locked between the mounting holes of each panel to assemble.

Hereinafter, how to use the panel fastener F and the effects of this panel fastener F will be specifically explained. In this case, since the method of using the panel fastener F is the same between any panel and any panel, here, we will not specifically mention the panels to be joined, but simply connect the two panels P1, P2, each panel P1. , P2, one panel P1 (here, the panel with the mounting hole 61 on the outside when the two panels P1 and P2 are combined), the other panel P2, (here, the two panels P1 , P2 will be referred to as a panel in which the mounting hole 62 is on the inside when assembled.).

As shown in FIG. 1, in the normal state before use of this panel fastener F, a pair of hooks 3 are connected between each pair of bearings 23 by a coil spring 5 between each hook 3 and a pedestal 22. is pressed in the direction of the side edges 203 and 204 of each hook 3, so that a part of the other end edge 302 from the outer surface 303 of each hook 3, that is, a part of the locking pawl 31, moves between the side edges 203 of each bearing 23. , 204 to the outside.

When assembling this prefabricated rack R, as shown in FIG. Align the bearing/pedestal block 2A with each hook 3 to the mounting holes 61 and 62 of each panel P1 and P2, in this case vertically to the vertical mounting holes 61 and 62. Insert it into the mounting holes 61 and 62 and push it in (one push).

In this way, as shown in FIGS. 8(1) and 8(2), the panel fastener F has the bearing/pedestal block 2A on each side edge 203, 204 of each bearing plate 2 and on each outer side (outward). While the plane slides from the tip to the middle and from the middle to the base end of each edge of the mounting holes 61, 62 of each panel P1, P2 in the short side direction and the long side direction, the mounting hole 61 of each panel P1, P2 is , 62. During this time, each locking pawl 31 of each hook 3 protruding outward from between each side edge 203 and 204 of each bearing plate 2 is connected to the edge of each short side direction of each mounting hole 61, 62 of each panel P1, P2. The locking claws 31 gradually move between the bearings 23 against the urging force of the coil springs 5 between the hooks 3 and the base 22 (while compressing the coil springs 5). The bearing 23 is rotated toward the bearing 23 and inserted between the side edges 203 and 204 of each bearing 23. Then, as shown in FIGS. 8(3-1) and (3-2), each locking claw 31 is completely fixed on each side of each bearing 23 (at the moment when the panel fastener F is pushed into the mounting holes 61 and 62). The bearing/pedestal block 2A is inserted between the edges 203 and 204 and completely passes through the mounting holes 61 and 62 of each panel P1 and P2, and the mounting plate 1 has a flat flange 11 on the entire peripheral edge of one panel. The hooks 3 between the bearings 23 pass through the mounting holes 61 and 62 of each panel P1 and P2, and are in contact with the entire periphery of the mounting hole 61 of P1. Due to the urging force of the coil spring 5 between each hook 3 and the pedestal 22 (elastic return of the coil spring 5), each locking pawl 31 rotates from between each bearing 23 toward each side edge 203, 204 of each bearing 23. It protrudes outward from between the side edges 203 and 204 of each bearing 2, and is elastically locked to the edge of the attachment hole 62 in the short side direction of the other panel P2. Here, in this panel fastener F, as shown in FIG. Since the portion 302 is formed in an arc shape with the center of the circle located closer to the one end edge 301 of each hook 3 and closer to the inner surface portion 304 than the center of rotation of each hook 3, each hook 3 As the locking pawls 31 rotate outward, the arcuate portions of each locking pawl 31 project toward the edge of the attachment hole 62 and bite into each edge of the attachment hole 62 in the short side direction. As a result, the bearing/pedestal block 2A is drawn from the mounting hole 61 of one panel P1 to the mounting hole 62 of the other panel P2, as shown in FIGS. 8(3-1) and (3-2), and the mounting The flat flange 11 of the plate 1 is pressed against the entire periphery of the mounting hole 61 of one panel P1, and the two panels P1 and P2 are tightened and joined between the mounting plate 1 and the pair of hooks 3. be done. In this case, the panel fastener F is vertically attached between the two panels P1 and P2, and each locking groove 720 of the release lever rotation operation section 72 on the mounting plate 1 is vertically oriented. Note that FIG. 8 (3-1) illustrates a case where the thickness of panels P1 and P2 is small, and FIG. 8 (3-2) illustrates a case where the thickness of panels P1 and P2 is large.

In addition, after the two panels P1 and P2 are joined with the panel fastener F, when removing the panel fastener F from these two panels P1 and P2, use one hand to remove the mounting plate from the mounting hole 61 side of the panel P1. 1, and while pushing each hook 3 on the mounting hole 62 side of panel P2 between each bearing 23 with the other hand, pull the mounting plate 1 with one hand on one side and pull out the panel fastener F. By this pulling out, the panel fastener F is returned to its normal state before use.

Furthermore, when the panel fastener F is removed from the two panels P1 and P2, for example, the panel fastener is located at the engagement position between the locking claw 31 of each hook 3 and the edge or around the edge of the attachment hole 62 of the other panel P2. If you cannot insert each hook 3 directly by hand at or around the edge of the mounting hole 62 of the other panel P2 due to obstructions from other members, etc., remove these two panels. The panel fasteners F can be easily removed from the panels P1 and P2 using the release handle 8.

As shown in FIGS. 9, 10 (1), and (2), first, hold the release handle 8 in your hand, and press and operate each operating lever 83 of the release handle 8 to move the pair of locking claws 832 outward. Then, the locking claws 832 are inserted into the respective insertion grooves 721 of the locking grooves 720 of the release lever rotation operation section 72 fitted into the recess 105 of the mounting plate 1 . Then, when the pushing operation of each operating lever 83 is released, each locking pawl 832 is closed by the biasing force of the coil spring 84 and is locked in each engagement groove 722. As a result, the release handle 8 is connected and locked to the release lever rotation operating section 72.

From this state, as shown in FIG. 10(3), turn the release handle 8 90° clockwise. By turning the release handle 8 by 90 degrees, the shaft 7 rotates, and the release lever 73 pivots (rotates) between one ends of the pair of hooks 3. Further, as the shaft 7 rotates, each coil spring 5 is disengaged from each receiving part 701 of the shaft 7, and each coil spring 5 slides between each receiving part 701 of the shaft 7. Then, each locking claw 832 of the release handle 8 is held between the edge of each locking groove 720 and the inner peripheral edge of the recess 105 of the mounting plate 1 within each locking groove 720 of the release lever rotation operation part 72. As a result, the release handle 8 is in a state where it cannot be removed from the release lever rotation operation section 72. By this rotation of the release lever 73, the release lever 73 is rotated in a direction in which the inner surface 304 of each hook 3 is pressed by the tapered engagement guides on both ends of the side surfaces 731, and one end of each hook 3 is opened. Further, due to the inclined shape of both ends of the back surface of the release lever 73, the release lever 73 can be smoothly rotated at a position close to the rotation center of the release lever 73. As the release lever 73 rotates, one end of each hook 3 opens, and each locking pawl 31 of each hook 3 comes off the edge of the mounting hole 62 of the panel P2 and is inserted between each bearing 23. To go.

When the release lever rotation operation part 72 is turned 90 degrees with the release handle 8 in this way, the release lever 73 presses the inner surface 304 of each hook 3 with its both ends, and opens one end of each hook 3 to the maximum extent. Each locking pawl 31 of each hook 3 is completely recessed between each bearing 23. That is, the engagement between the panel fastener F and the two panels P1 and P2 is completely released, and the panel fastener F can be removed from the mounting holes 61 and 62 of each panel P1 and P2. From this state, as shown in FIG. 10(4), when the release handle 8 is pulled with one hand on each side, the panel fastener F connected to the release handle 8 is pulled out from the two panels P1 and P2. After pulling out the panel fastener F from the two panels P1 and P2, use the release handle 8 to rotate the release lever rotation operating part 72 by 90 degrees counterclockwise and turn it (return) to the original position. is rotated to its original position, the release lever 73 returns, one end of each hook 3 is closed, each locking pawl 31 of each hook 3 is projected from each bearing 23, and each coil spring 5 and shaft 7 are The receiving portion 701 is engaged. These states can be immediately recognized by the response caused by the engagement between each coil spring 5 and each receiving portion 701 of shaft 7.

As explained above, this panel fastener F includes a mounting plate 1, a bearing/pedestal block 2A consisting of a pair of bearing plates 2 and a pedestal 22, a pair of hooks 3, a coil spring 5, and a release lever attached to one end. The shaft 7 includes a release lever 73, and a shaft 7 having a release lever rotation operating portion 72 and a release handle 8 at the other end. In this way, the bearing/pedestal block 2A is passed together with each hook 3 into each mounting hole of the two panels with one push, and the locking claw 31 of each hook 3 is attached to or around the edge of the mounting hole of the other panel. Since they are designed to engage, the panel fastener F can be passed through and locked into the mounting hole of two panels with one push without using any tools, and the two panels can be fastened together more quickly and easily than before. In addition, the release handle 8 can be connected and locked to the release lever rotation operation part 72 by the elastic engagement of the locking groove 720 and the locking pawl 832, and the release lever rotation operation part 72 can be rotated by the release handle 8. By operating the locking claw 31 of each hook 3, the engagement with the edge or around the edge of the mounting hole of the other panel is released, so when this panel fastener F is removed from two panels. At this time, the user cannot reach the engagement position between the locking claw 31 of each hook 3 and the edge of the mounting hole of the other panel or around the edge, and each hook 3 is not inserted into the engagement position between the locking claw 31 of each hook 3 and the edge of the mounting hole of the other panel. This panel fastener F can be easily removed from the two panels even if it is not possible to push it in directly around the panel by hand. Furthermore, this panel fastener F can not only be easily attached to and removed from two panels, but also be able to connect each hook 3 directly by providing a shielding wall near each hook 3 on a part of the two panels. This panel fastener F cannot be easily removed without using the release handle 8 by preventing it from being manually pushed between the side edges of each pair of bearings 23 of the bearing/pedestal block 2A. This can be done when there is a need for security, etc.

Furthermore, this panel fastener F has the following advantages.

The center of rotation of each hook 3 is provided near the one end edge 301 at the intermediate part between the one end edge 301 and the other end edge 302 of the hook 3, and the other end edge 302 of each hook 3 is centered around the center of the circle. By forming the panel fastener F into a circular arc at a position closer to one end edge 301 of each hook 3 than the center of rotation of the hook 3 and closer to the inner surface 304 on the opposite side to the outer surface 303, this panel fastener F can be After passing each hook 3 through the mounting hole of the panel and pushing it with one push, the locking claw 31 rotates outward and the arc-shaped portion of the locking claw 31 protrudes toward the edge of the mounting hole. This locking pawl 31 can bite into the edge of the mounting hole, thereby drawing the bearing/pedestal block 2A from the mounting hole of one panel to the mounting hole of the other panel, and aligning the flat surface of the mounting plate 1. The flange 11 of the panel is pressed against the periphery of the mounting hole of one panel, and the two panels can be tightened and joined between the mounting plate 1 and the pair of hooks 3. Even if there are slight variations in board thickness, each panel can be reliably joined without wobbling.

The outer surface 303 of each hook 3 is formed parallel to both side edges 203 and 204 of each bearing plate 2, and one end edge 301 of each hook 3 has an inner surface 304 protruding more than the outer surface 303 side, so that it has a shape similar to a sword. The inner surface 304 of each hook 3 is formed at one end substantially parallel to the outer surface 303, and the middle section has a substantially doglegged shape with one end of the inner surface 304 and is parallel to the outer surface 303. The hooks 3 are formed diagonally in the direction of separation from each other, and the other end is formed substantially parallel to the outer surface portion 303, so that each hook 3 is connected between the pair of square bearings 23 so that only each locking pawl 31 is connected to both side edges of each bearing 23. It can be arranged so that it can appear and retract from between the parts 203 and 204.

A cylindrical groove 33 is formed in the inner surface 304 of each hook 3, and a cylindrical hole 223 is formed in each side surface 222 of the base 22 facing the inner surface 304 of each hook 3, and a coil spring is formed as a spring member. One end of the coil spring 5 is held in each groove 33 of each hook 3, and the other end is pressed against the shaft 7 through each hole 223 of the pedestal 22, so that the coil spring 5 is interposed between each hook 3 and the pedestal 22. With this arrangement, each hook 3 can be reliably urged to rotate in the direction of both side edges 203 and 204 of each bearing 23 with a simple structure.

In this case, a groove-shaped receiving part 701 is formed on the outer peripheral surface of the shaft 7 at a circumferentially symmetrical position so that the other end of each coil spring 5 can be fitted, and the other end of each coil spring 5 is inserted through the hole 223 of the base 22. Since it is held in each receiving part 701 of the shaft 7, it has many advantages as follows.

That is, since the other end of each coil spring 5 is held by each receiving part 701 of the shaft 7 through the hole 223 of the pedestal 22, the number of turns of each coil spring 5 can be changed from each side surface 222 of the pedestal 22 to each receiving part 701 of the shaft 7. The spring force can be increased by increasing the distance between the two bearings 23, thereby reliably urging each hook 3 to rotate so that each locking pawl 31 can effectively protrude from between each bearing 23. Further, since the other end of each coil spring 5 presses the shaft 7 within each receiving part 701 of the shaft 7 through the hole 223 of the pedestal 22, for example, each locking groove 720 of the release lever rotation operating part 72 of the shaft 7 is vertically pressed. By making each coil spring 5 and each receiving part 701 of the shaft engage with each other in the orientation state, when rotating the release lever 73 and inserting each hook 3 between each bearing 23, the release lever When each of the locking claws 832 of the release handle 8 is engaged with each of the locking grooves 720 of the rotation operation part 72 and the shaft 7 is rotated, each coil spring 5 is disengaged from each of the receiving parts 701 of the shaft 7. Each coil spring 5 slides between each receiving portion 701 of the shaft 7, and the release handle 8 is used to move the shaft 7 back in order to return the release lever 73 and cause each hook 3 to protrude from between each bearing 23. When turned, each coil spring 5 and each receiving part 701 of the shaft 7 are engaged, and this response returns the release lever rotation operation part 72 to its original position, that is, the state in which each locking groove 720 is oriented vertically. This can be immediately recognized, and the release lever 73 can be easily rotated (swiveled) by the release lever rotation operating section 72 of the shaft 7. Furthermore, when assembling the bearing/pedestal block 2A, the shaft 7, and the release lever 73, if the shaft 7 is inserted into the shaft insertion part 220 of the pedestal 22, the outer circumferential surface of the shaft 7 is pressed by each coil spring 5. Since the shaft 7 is temporarily fixed (temporarily prevented from coming off), the release lever 73 can be easily placed in the release lever attachment part 71 of the shaft 7, and the mounting screw 734 can be easily tightened to the tip of the shaft 7, and the release can be done easily. The assembly work of the lever 73 can be easily performed. In addition, in this case, before or after the bearing/pedestal block 2A is passed through each mounting hole of the two panels together with each hook 3, the locking claw 31 of each hook 3 is inserted into each of the bearings 23 of the bearing/pedestal block 2A. When protruding from between the side edges 203 and 204, the coil spring 5 can be deformed into a convex arc shape toward the mounting plate 1 side, and the bearing/pedestal block 2A together with each hook 3 can be mounted on each of the two panels. When the hooks 3 are passed through the holes and the locking claws 31 of each hook 3 are inserted between the side edges 203 and 204 of each bearing 2, the coil spring 5 is shaped like a convex arc on the side opposite to the mounting plate 1. Deformably, the groove 33 of each hook 3 is formed at a predetermined angle from the inner surface 304 of each hook 3 to the side of the other end edge 302 of each hook 3. A part 331 of the inner circumferential surface on the other end edge 302 side and/or on the one end edge 301 side is formed with an inclination of a predetermined angle so that the diameter gradually increases from the back side of the groove 33 toward the opening side. Therefore, the coil spring 5 can be easily expanded and contracted, and the locking pawl 31 of each hook 3 can be reliably and smoothly moved in and out from between the side edges 203 and 204 of each bearing 3.

The release lever rotation operating portion 72 of the shaft is formed into a disk shape, and locking grooves 720 are provided at mutually opposing positions on the peripheral edge thereof. The release handle 8 includes a base plate 81, a pair of support plates 82, and a pair of operating levers 83. The base plate 81 is formed into a disk shape, and a pair of support plates 82 extend in parallel from both sides of one surface of the base plate 81 . Each of the pair of operation levers 83 is formed into a top shape such that each main body portion 831 can be arranged symmetrically between each support plate 82 on one side and the other side of each support plate 82. A pair of locking pawls 832 is provided at one end of the main body portion 831 so as to protrude from between the tips of each support plate 82 and to be removably engaged with each locking groove 721 of the release lever rotation operating portion 72 . Each main body part 831 is moved between each support plate 82 to the distal end side of each support plate 82 via a rotation shaft 833. As each main body part 831 rotates, each locking pawl 832 is rotated, and the release lever is rotated. A portion 831c of each main body portion 831 is attached to each locking groove 720 of the operating portion 72 so as to be releasable and retractable from between each side portion of each support plate 82. A coil spring 84 is interposed between each operating lever 83, so that each locking pawl 832 can be engaged with each locking groove 720 in a normal state, and a portion 831c of each main body portion 831 of each operating lever 83 is normally engaged. As shown in FIG. In this way, to connect the release lever rotation operation part 72 and the release handle 8, hold the release handle 8 in your hand, and first press and operate each operating lever 83 of the release handle 8 to release the pair of locking claws 832. Open outward, insert into each insertion groove 721 of each locking groove 720 of release lever rotation operation part 72, then release the pressing operation of each operation lever 83, close each locking pawl 832 inward and close each lock. It is only necessary to engage the fitting groove 722, and the connection between the two can be easily and quickly performed. When removing the panel fastener F, turn the release handle 8 90 degrees clockwise to rotate the shaft 7 and pivot (rotate) the release lever 73 between one end of the pair of hooks 3. The hooks 3 are rotated in a direction in which one end thereof is opened, and each locking pawl 31 of each hook 3 is removed from the edge of the mounting hole of the panel, and inserted between each bearing 23. As a result, the engagement between the panel fastener F and the two panels is completely released, and the panel fastener F can be removed from each mounting hole of each panel. Therefore, by pulling the release handle, the panel fastener F can be pulled out together with the release handle 8 from the two panels. Using this release handle 8, the panel fastener F can be easily and quickly removed from the two panels.

The release lever 73 is formed into a substantially boat-shaped block shape in which both ends of both side surfaces 731 that are engaged with each hook 3 are gradually tapered toward both ends. When turned, both side surfaces 731 of the release lever 73 smoothly engage with the inner surface 304 of each hook 3, allowing each hook 3 to rotate smoothly. In this case, the release lever 73 is formed in an inclined shape such that both ends of the surface facing the protruding end surface 221 of the pedestal 22 are gradually separated from the protruding end surface 221 of the pedestal 22 in the direction of both ends, so that the release lever 73 is released when the release lever 73 is rotated. The contact resistance between the release lever 73 and the bearing/pedestal block 2A at a position close to the rotation center of the lever 73 is reduced, making it easier to turn the release lever 73.

The mounting plate 1 is a rectangular plate that is slightly larger than the mounting hole of one panel, and the pair of bearing plates 2 of the bearing/pedestal block 2A are each large enough to fit into each mounting hole of the two panels. Each mounting hole is formed into a rectangular shape having a predetermined length so that it can be passed through, and each mounting hole in the two panels is opened in a rectangular shape. The cost required for this can be kept low.

The pair of hooks 3 are arranged symmetrically between each pair of bearings 23 with the pedestal 22 between each bearing plate 2 as the center of symmetry, and each shaft insertion portion 20 on the protruding end 201 side of each bearing plate 2 and the shaft of each hook The shaft 4 is passed through each of the shaft insertion portions 20 and 30, and is rotatably supported between the bearings 23 and assembled. At this time, one end of each shaft 4 is formed to have a smaller diameter than the other end, one shaft insertion portion 30 of each bearing 23 is formed to have a smaller diameter, and a tapered groove 200 is formed on the outer surface side of each shaft. One end of the shaft 4 is inserted into one of the shaft insertion portions 30 and fixed by being caulked within the tapered groove 200, so that the caulking process is reduced to half, and workability can be improved.

The release lever attachment part 71 of the shaft 7 has a part of the outer circumferential surface facing one end of the shaft 7 in the circumferential direction formed parallel to each other with a linear cross section, and the remaining part formed symmetrically with an arcuate cross section. Around the opening of the mounting screw insertion hole 732 on the rear surface 735 side, a recess 733 whose basic shape is a circle slightly larger than the diameter of the mounting screw insertion hole 732 is provided around the opening so that the release lever mounting portion 71 at one end of the shaft 7 can fit therein. A part of the inner circumferential edge facing in the direction is formed to have a parallel straight cross section, and the remaining part is formed to have a symmetrical arc cross section, and the release lever attachment part 71 having such a shape is fitted into the recess 733 of the release lever 73. Since the release lever 73 is prevented from rotating, only two surfaces of the shaft 7 and the release lever 73 need to be processed to prevent rotation, and work efficiency can be improved.

In this embodiment, the coil spring 5 is used as the spring member, and the coil spring 5 is interposed between the pair of hooks 3 and the pedestal 22, but this spring member may be a torsion spring or a plate. A spring may be used and interposed between each hook and the base. Even in this case, the same effects as those of the above embodiment can be achieved.

Further, in this embodiment, the release lever rotation operation part 72 of the shaft 7 is formed in the shape of a disk at the other end of the shaft 7, and locking grooves 720 are provided at mutually opposing positions on the peripheral edge thereof. However, the respective locking grooves 720 of the release lever rotation operation section 72 may be provided at positions facing each other within one surface (plane) of the release lever rotation operation section 72. Even in this case, the same effects as those of the above embodiment can be achieved.

Each of the pair of operation levers 83 of the release handle 8 is surrounded by an outer surface portion 831a that appears outward from between the sides of each support plate 82 of each main body portion 831 and the other end 831b of each main body portion 831. Although the part 831c of the part 831 is attached so as to be retractable from between the sides of each support plate 82, the outer surface part 831a that appears outward from between the sides of each support plate 82 of each main body part 831 and each A part of the part 831c of each main body part 831 surrounded by the other end 831b of the main body part 831 may be able to protrude and retract from between the sides of each support plate 82. Even in this case, the same effects as those of the above embodiment can be achieved.

Further, the coil spring 84 of the release handle 8 is interposed between the respective operating levers 83, and rotates so that a part of each main body portion 831 of each operating lever 83 can normally protrude from between each side of each supporting plate 82. Although the main body portion 831 of each operating lever 83 is normally biased to rotate so that it can protrude from between the sides of each support plate 82, You may also do so. Even in this case, the same effects as those of the above embodiment can be achieved.

Furthermore, in this embodiment, the panel fastener F is used to join two panels, but it may also be used when other members are interposed between two panels or when three or more panels are stacked and joined together. Needless to say, the present invention is also applicable in the same way, and is not limited to use only for joining two panels.

F Panel fastener 1 Mounting plate 101, 102 Long side edge 103, 104 Short side edge 105 Recess 106 Groove 11 Flange 2A Bearing/pedestal block 2 Bearing plate 201 Projecting end (long side edge)
202 Groove 203, 204 Side edge (edge on short side)
20 Shaft insertion portion 200 Recess 22 Pedestal 220 Shaft insertion portion 221 Projecting end surface 222 Side surface 223 Hole 23 Bearing 3 Hook 301 One end edge 302 Other end edge 303 Outer surface portion 304 Inner surface portion 30 Shaft insertion portion 31 Locking pawl 33 Groove 331 Inside Part of peripheral surface 4 Shaft 5 Spring member (coil spring)
R rack P1 (one) panel P2 (other) panel 61, 62 Mounting hole 7 Shaft 701 Receiving part 71 Release lever mounting part 710 Screw hole 72 Release lever rotation operation part 720 Locking groove 721 Insertion groove 722 Engagement groove 73 Release lever 731 Side surface 732 Mounting screw insertion hole 733 Recessed part 734 Mounting screw 735 Back side 736 Front 8 Release handle 81 Base plate 82 Support plate 821 Center plate 822 Hole 823 Groove 824 Rotating shaft insertion part 83 Operation lever 831 Main body part 831a External part 831b etc. End 831c Part 831d Inner surface 831e Convex portion 831f Rotating shaft insertion portion 831g Receiving portion 832 Locking claw 833 Rotating shaft 84 Spring member (coil spring)

Claims (10)

Two panels with mounting holes formed thereon are put together, the mounting hole is passed through the mounting hole of one of the two panels to the mounting hole of the other panel, and the edge or edge of the mounting hole of the other panel is passed through the mounting hole of one of the two panels. In a panel fastener that is secured around the periphery and joins the two panels,
a mounting plate having a plane larger than the mounting hole of the one panel;
a pair of bearing plates projecting parallel to each other so that they can be inserted through each of the mounting holes of each panel, leaving a peripheral edge of the plane as a flange on a plane of the mounting plate, and having a groove in the middle of the projecting end; a pedestal having a shaft insertion part located in the center between a pair of bearing plates, protruding from the plane of the mounting plate to the bottom of the groove of each bearing plate or in the vicinity thereof, and penetrating from the protruding end surface to the mounting plate; a bearing /pedestal block in which each of the bearing plates extending on both sides of the pedestal serves as a pair of bearings;
Each of the bearing/pedestal block is formed into a substantially piece-like shape so as to fit between the pair of bearings, and the other end thereof is arranged between the pair of bearings with one end facing toward the protruding end of each bearing. With the parts facing the mounting plate side, the protruding ends of the respective bearings are rotated to a position closer to the mounting plate side than the position of the groove on both sides facing the respective bearings. A locking pawl is provided from an outer surface portion that appears outward from between both side edges of each bearing to the other end edge in a state where the center of movement is provided and the pair of bearings are fitted and arranged between each pair of bearings. and are rotatably supported on the protruding end sides of each pair of bearings via a pair of shafts, so that each of the locking claws is connected to each side edge of each pair of bearings. A pair of hooks arranged so as to be able to appear from between;
a spring member that is interposed between the pair of hooks and the pedestal and biases each of the hooks to rotate so as to normally protrude from between the side edges of each of the bearings;
The shaft insertion portion is inserted into the shaft insertion portion of the pedestal of the bearing/pedestal block, has a release lever attachment portion protruding from the protruding end surface of the pedestal at one end, and has an opening in the mounting plate at the other end. a shaft having a release lever rotary operating section rotatably disposed around the circumference, a release handle detachably connected to the release lever rotating operating section in a locking manner by elastic engagement of a locking groove and a locking pawl; fixed to the release lever attachment portion of the shaft so as to be rotatable together with the shaft, and disposed so as to be engageable between one ends of the pair of hooks between the respective grooves of the pair of bearing plates on the protruding end surface of the pedestal; By the rotation of the release lever rotary operation section, the base is rotated by the protruding end surface to push apart one ends of each of the hooks, and the locking claw of each hook is moved between each side edge of each pair of bearings. A release lever that can be immersed,
Equipped with
Passing the bearing/pedestal block through each of the mounting holes of the two panels with one push, engaging the locking claw of each of the hooks at or around the edge of the mounting hole of the other panel,
Further, the release handle is connected and locked to the release lever rotation operation section by elastic engagement of the locking groove and the locking pawl, and the release lever rotation operation section is rotated by the release handle, thereby each of the above-mentioned releasing the engagement between the locking claw of the hook and the edge or around the edge of the attachment hole of the other panel;
A panel fastener characterized by: The release lever rotation operating portion of the shaft is formed into a disc shape, and has locking grooves at mutually opposing positions on its peripheral edge or within one surface, and the release handle includes a base plate and one of the base plates. a pair of support plates extending parallel to each other from both sides of the plane; A pair of locking pawls are formed at one end of each of the main body parts and protrude from between the tips of the support plates and are removable from the locking grooves of the release lever rotation operation section. , each of the main body parts is rotated between the support plates to the distal end side of each of the support plates via a rotation shaft, and the locking pawls are rotated by the rotation of each of the main body parts, and the locking pawls are rotated between the support plates. Each of the above-mentioned parts is removably engaged with each of the locking grooves of the lever rotation operating part and is surrounded by an outer surface part that appears outward from between the sides of each of the support plates of each of the main parts and the other end of each of the main parts. A pair of operation levers are installed between each of the operation levers, and a pair of operation levers are attached to which a part of the main body part or a part thereof can be retracted from between each side of each of the support plates, and each of the locking claws is normally engaged A spring that rotationally biases a portion of each main body portion of each operating lever or a portion thereof so as to be able to engage with each locking groove and project from between each side portion of each support plate in a normal state. The panel fastener according to claim 1, comprising a member. The rotation center of each hook is provided near the one end edge at an intermediate portion between the one end edge and the other end edge of the hook, and the other end edge of each of the hooks is provided around the center of the circle. The panel fastener according to claim 1 or 2, wherein the panel fastener is formed in an arc shape at a position closer to one end edge of each of the hooks than the center of movement and closer to the inner surface opposite to the outer surface. The outer surface of each hook is formed parallel to both side edges of each bearing plate in a state where each hook is recessed and fitted between both side edges of each bearing plate, and one end edge of each hook is formed parallel to both side edges of each bearing plate. The inner surface of the hook projects more than the outer surface and is formed obliquely like the edge of a sword, and one end of the inner surface of the hook is formed approximately parallel to the outer surface, and the middle portion is formed on the inner surface of the hook. The panel fastener according to any one of claims 1 to 3, wherein the panel fastener is formed obliquely in a direction away from the outer surface portion so as to have a dogleg shape with one end side, and the other end side is formed substantially parallel to the outer surface portion. . A cylindrical groove is formed in the inner surface of each hook, a cylindrical hole is formed in each side surface of the pedestal facing the inner surface of the hook, a coil spring is employed as the spring member, and the coil spring wherein one end is held in each of the grooves of each of the hooks, the other end is pressed against the outer peripheral surface of the shaft through each of the holes of the pedestal, and is interposed between each of the hooks and the pedestal. 5. The panel fastener according to any one of 1 to 4. A groove-shaped receiving portion is formed at a circumferentially symmetrical position on the outer peripheral surface of the shaft, into which the other end of each coil spring can fit, and the other end of each coil spring is inserted into each receiving portion of the shaft through a hole in the base. The panel fastener according to claim 5, wherein the panel fastener is retained. When the locking claws of each hook protrude from between the side edges of each bearing of the bearing/pedestal block before or after the bearing/pedestal block is passed through each mounting hole of the two panels together with each hook. The coil spring is deformable into a convex arc shape toward the mounting plate, and the bearing/pedestal block is passed through each of the mounting holes of the two panels together with each of the hooks, and the locking claw of each of the hooks is inserted into each of the two panels. When inserted between the bearings, the coil spring can be deformed into a convex arc shape on the side opposite to the mounting plate, and the groove of each hook extends from the inner surface of each hook to the other end of each hook. The groove is formed at a predetermined angle in the direction of the edge side, and a part of the inner circumferential surface of the groove of each hook on the other edge side and/or one edge side of the hook is The panel fastener according to claim 5 or 6, wherein the panel fastener is formed with an inclination of a predetermined angle, the diameter of which gradually increases from the back side of the groove toward the opening side. 8. The panel fastener according to claim 1, wherein the release lever is formed in a substantially boat-shaped block shape, with both end sides of both side surfaces engaged with each hook tapering gradually toward both ends. 9. The panel fastener according to claim 1, wherein the release lever is formed in an inclined shape such that both end sides of the surface facing the protruding end surface of the pedestal are gradually spaced apart from the protruding end surface of the pedestal in the direction of both ends. The mounting plate consists of a rectangular plate that is slightly larger than the mounting hole on one panel, and each pair of bearing plates on the bearing/pedestal block is large enough to fit into each mounting hole on the two panels. The panel fastener according to any one of claims 1 to 9, which is formed into a rectangular shape having a predetermined length so as to be able to pass through the hole, and each mounting hole in the two panels has a rectangular opening.

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