JP2705557B2 - Folding door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door lock device used by being mounted on an opening of a locker or a storage.

[0002]

2. Description of the Related Art A folding door of this type comprises a hanging-side door plate hinged to an opening and an anti-hanging-side door plate hinged to a tip edge of the door plate. There is known a configuration in which the leading edge of the door plate on the side opposite to the hanging side can sometimes move left and right along the opening. In such a folding door, the upper end portion and the lower end portion of the leading edge of the anti-hanging side door plate are guided by rails provided at the upper opening edge and the lower opening edge of the opening, respectively. However, in a special locker or the like as described later, only the upper end portion of the leading edge of the anti-hanging side door plate or only the lower end portion of the leading edge is supported by the rail provided in the opening. There are many things that have to be done.

[0003]

When this type of folding door is locked in a closed state, the hinged position between the hanging side door plate and the anti-hanging side door plate is fixed to the opening by a locking mechanism or the like. I am trying to do it. Therefore, if only one of the upper and lower ends of the leading edge of the anti-hanging side door plate is supported by the rail, the holding of the non-support side end portion at the leading edge of the anti-hanging side door plate becomes insufficient. If the rigidity of the non-suspension side is not made very high, it is easy to cause the door plate on the non-suspension side to be easily pryed open by pulling the non-support side end portion toward the user.

An object of the present invention is to surely solve such a problem with a simple configuration.

[0005]

In order to achieve the above object, the present invention takes the following measures.
That is, the locking device for a folding door according to the present invention includes a hanging-side door plate hinged to the opening, an anti-hanging-side door plate hinged to a tip edge of the door plate, and a door plate when closing these door plates. Hanging side
Locking mechanism to lock the upper or lower end of the door plate
A rail for guiding and supporting one of the upper end side or the lower end side of the door plate, so that the leading edge of the door plate on the anti-hanging side can move left and right along the opening at the time of opening and closing. In the folding door configured, a fixed engagement portion provided on the opening edge opposite to the hanging side of the opening, and the non -hanging side of the door plate provided at the non-supporting end of the door plate on the side opposite to the hanging side when the door is closed. An engagement element that engages with the fixed engagement portion by utilizing an approaching operation to an opening edge, and a door plate that is engaged with the fixed engagement portion and the engagement element.
The unsupported end of the anti Tsumoto the side door panel, characterized in the this <br/> be stably maintained when the closure.

[0006] In a construction in which the lower end of the leading edge of the door plate on the side opposite to the suspension base is configured to be movable left and right by being guided by a rail provided at the lower opening edge of the opening, the engaging element is provided. It is desirable to provide at the upper end side of the front edge of the door plate, and the upper end side of the front edge is configured to be able to move left and right guided by a rail provided at the upper opening edge of the opening. Preferably, the engaging element is provided at a lower end side of a front edge of the door plate.

In order to prevent the engagement state of the engagement element from becoming shallow with respect to the fixed engagement portion, the engagement element is pivotally connected to the door plate on the side opposite to the suspension base via a vertical shaft. And a portion of the engaging element deviated from the vertical axis is connected to one end of a horizontal rod, and the other end of the horizontal rod is connected to the base edge of the door plate on the opposite side of the suspension via an elastic biasing element. To protrude,
When the leading edge of the hanging side door plate and the base edge of the anti-hanging side door plate at the time of closing approach, the horizontal rod is urged by the leading edge and slid to one end, and by this operation, the engaging element is moved. It is effective to rotate and bias around the vertical axis to engage with the fixed engagement portion.

[0008] As a support structure for the horizontal rod, a plate member disposed in a gap between the base plate of the door plate on the side opposite to the hanging side and the leading edge of the door plate on the side of the hanging side when closed is attached. It is preferable that the other end of the horizontal rod is inserted through a guide hole provided in the member.

It is convenient for this plate member to be provided with a notch for tightly accommodating a hinge disposed between the door plate on the hanging side and the door plate on the opposite side of the hanging side.

[0010]

In such a folding door, the leading edge of the door plate on the side opposite to the suspension base moves right and left along the opening along with the opening / closing operation. However, when closing the folding door, the leading edge of the anti-hanging side door plate will gradually approach the anti-hanging side opening edge of the opening, and provided on the anti-hanging side door plate during its operation. The engaging element automatically engages with the fixed engaging portion provided in the opening. As a result, in the closed state, the non-anti Tsumoto side door panel
The support end is held at the semi-hanging side opening edge via the mutually engaged engagement element and the fixed engagement portion, and the locking mechanism is provided.
This makes it difficult to pry open the door plate in the thickness direction when the upper or lower end of the door plate is locked .

In particular, when the engaging element is configured to be rotatable, when the folding door is closed, the hanging-side door plate and the anti-hanging-side door plate gradually approach a flush state. When the leading edge and the base edge of both door plates perform an approaching operation, the other end of the horizontal rod protruding from the base edge of the anti-hanging side door plate is pressed by the leading edge of the hanging side door plate and sinks, The whole slides toward the tip. Thus, since the tip of this horizontal rod is connected to a portion of the engaging element that is offset from the vertical axis, the engaging element is urged around the vertical axis by the rod,
While rotating, it engages with the fixed engagement portion provided on the opening edge on the side opposite to the hanging base of the opening. For this reason, if the shapes of the fixed engagement portion and the engagement element are defined according to the rotation locus, the engagement element is inserted deeper into the fixed engagement portion without interfering with both. It becomes possible.

If the horizontal rod is supported by a plate member, the plate member can also function as a joint material. If the plate member is provided with a notch and the hinge is closely housed, the play of the hinge can be reduced. Sticking can be prohibited by the inner edge of the notch.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a locker will be described below with reference to FIGS.

The rocker unit 1 shown in FIGS.
It has a unit locker for each person. That is, the locker unit 1 includes a case 3 made of sheet metal, and divides the internal space of the case 3 into three regions by a separation wall 4, and divides each region into an upper shelf 5 and a lower shelf 6. And a vertical partition plate 7, the upper space U, the left slender space L, the right slender space R, and the lower space D. Then, the first folding door 8 is provided in front of the lower space D and the right elongated space R of each area to constitute a lower unit locker 21 for one person, and in front of the upper space U and the left elongated space L. The second folding door 9 is provided to form an upper unit locker 22 for one person.

The first folding door 8 includes a hanging side door plate 81 for covering the right half of the lower space D and the right elongated space R, and a left half of the lower space D hinged to a leading edge of the door plate 81. And an anti-hanging side door plate 82 that covers the
1, a handle 10 and a locking mechanism 11 are provided. Toride 10
Is a concave shape made of a synthetic resin or the like.
As shown schematically in FIGS. 4 and 5, the locking mechanism 11
A lock 13 provided on the rear surface by a key operation causes a rotating portion 12 to reciprocate between a locked position and an unlocked position, and a base end pivotally connected to the rotating portion 12 of the lock 13 and a distal end to a hanging side door plate. A lower rod 14 extending from the lower end surface of the lower part 81 so as to be able to protrude and retract, and a rod engaging hole 15 formed in the lower opening edge 2a of the opening 2 and capable of engaging with the lower rod 14 protruding therefrom. And

The lower end of the leading edge of the anti-hanging side door plate 82 is supported on the lower edge of the opening 2 so as to be movable left and right. Specifically, as schematically shown in FIG. 6, when the handle 10 provided on the hanging side door plate 81 is pulled with a hand, the anti-hanging side door plate 82 is easily opened. Original door plate 8
A rod 16 is rotatably provided near the lower end of the leading edge of the rod 2, and a guide rail 17 into which a distal pin 16 a of the rod 16 is slidably inserted is provided at a lower opening edge 2 a of the opening 2. The rod 16 and the guide rail 17 form guide means 18.

A fixed engaging portion 19 is provided at the opening edge 2b on the side opposite to the hanging side of the opening 2, and an engaging element 20 is provided on the upper end side of the distal end edge of the door plate 82 on the side opposite to hanging side. The fixed engagement portion 19 and the engagement element 20 are shown in FIGS.
The fixed engaging portion 19 is an integrally molded synthetic resin having an engaging wall 23 that is substantially perpendicular to the opening edge 2b when the fixed engaging portion 19 is fixed to the opening edge 2b on the opposite side of the opening 2. Is fixed to the opening edge 2b on the side opposite to the suspension base by a bolt or the like. The engagement element 20 engages with the fixed engagement portion 19 by using the approaching operation of the anti-hanging side door plate 82 to the anti-hanging side opening edge 2b, but the engagement is released by the force in the thickness direction of the door plate 8. The hook-shaped portion 26 has a shape such that the hook-shaped portion 26 is not formed, and is fixed to a back plate of the anti-hanging side door plate 82 by a bolt or the like.

The second folding door 9 has a hanging side door plate 91 for covering the left half of the upper space U and the left elongated space L, and a right half of the upper space U hinged to the leading edge of the door plate 91. And a handle 10 and a locking mechanism 11 on the hanging side door plate 91, like the first folding door 8.
Is provided. The locking mechanism 11 is the same as the locking mechanism in the first folding door, in which the position of the rod has changed from bottom to top.
Is reciprocatingly rotated between a locked position and an unlocked position.
And an upper rod 24 having a base end pivotally connected to the rotating portion 12 of the lock 13 and a distal end extending from the upper end surface of the hanging side door plate 91 so as to be able to protrude and retract, and an upper opening edge 2 c of the opening 2. And a rod engaging hole 25 that can be engaged with the protruding upper rod 24. The upper end of the leading edge of the anti-hanging side door plate 92 is supported by the upper opening edge 2c of the opening 2 via the guide means 18 so as to be movable left and right.

A fixed engaging portion 19 is provided at the opening edge 2b on the side opposite to the hanging side of the opening 2, and an engaging element 20 is provided on the lower end side of the leading edge of the door plate 92 on the side opposite to hanging side. The fixed engaging portion 19 and the engaging element 20 are the same as those in the first folding door 8.

With such a configuration, for example,
When the first folding door 8 is closed, the leading edge of the anti-hanging side door plate 92 is guided by the guide means 18 and approaches the separation wall 4. Then, as shown in FIG. 7, the hook-shaped portion 26 of the engaging element 20 provided on the lower end side of the distal end edge of the anti-hanging side door plate 92 is fixed to the fixed engaging portion 19 attached to the separation wall 4. With the engaging wall 23. Thereafter, the key is inserted into the key hole provided in the handle 10 and rotated, whereby the rotating portion 12 provided on the back surface of the handle 10 is moved from the unlocked position shown in FIG.
To the locked position shown in FIG. The lower rod 14 pivotally connecting the base end to the rotating portion 12 moves downward, and the distal end of the lower rod 14 projects from the lower end surface of the hanging side door plate 81 as shown in FIG. It engages with a rod engaging hole 15 formed in the lower opening edge 2a of the opening 2. Folding door 8 in this way
Is locked, the leading edge of the anti-hanging side door plate 82 is also held by the anti-hanging side opening edge 2b via the engaging element 20 and the fixed engaging portion 19 engaged with each other. Original door plate 8
2 becomes difficult to pry open in the thickness direction. The second folding door 9 is the same as the first folding door 8, and is similar to the first folding door 8.
When the door is closed and locked, the leading edge of the anti-hanging side door plate 92 is also moved by the engagement between the engaging element 20 provided on the leading edge and the fixed engaging portion 19 provided on the anti-hanging side opening edge 2b. Since it is held by the side opening edge 2b, it becomes difficult to pry the anti-hanging side door plate 92 in the thickness direction.

As described above, in this embodiment, when one of the upper end portion or the lower end portion of the distal end edge of the anti-hanging side door plate 82, 92 is guided and supported by the guide rail 17, the locking mechanism 11 In addition, by providing the engaging element 20 at the non-supporting end, the non-supporting end can be sufficiently held, and safety at the time of locking can be enhanced.

Next, an embodiment in which the present invention is applied to another locker 100 will be described as another embodiment with reference to FIG. In this embodiment, the driving means 1 is used instead of the guiding means.
18. The driving means 118
The sprocket 120 is fixed to the housing 103 irrespective of the rotation of the hanging side door plate 181 of the folding door 108 mounted on the shaft 119, and the sprocket 120 is fixed to the anti-hanging side door plate 182 and is connected to the hanging side. The sprocket 122 includes a sprocket 122 fixed to a shaft 121 fixed to the door plate 181 and an annular belt 123 stretched across the two sprockets 120 and 122.

When the handle 110 is first pulled, the hanging side door plate 181 of the folding door 108 provided with such a driving means 118 starts rotating about the shaft 120. When the hanging-side door plate 181 rotates, the sprocket 120 of the hanging-side door plate 181 is stationary with respect to the rotation of the hanging-side door plate 181. Sprocket 122 of side door plate 182
, A rotation force in a direction opposite to the rotation direction of the hanging side door plate 181 is applied. Therefore, the anti-hanging side door plate 182 is
1 and rotates in a direction opposite to the hanging side door plate 181, and the folding door 108 is opened.

In the case of the folding door 108 having such a configuration, the upper end and the lower end of the leading edge of the anti-suspending-side door plate 182 are not supported. The unsupported end of the original side door plate 182 can be held, and it is difficult to pry open the door plate in the thickness direction, thereby improving the safety at the time of locking.

The form of the fixed engaging portion and the engaging element is as follows.
The present invention is not limited to the illustrated embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, the embodiment shown in FIGS.
This is useful for more securely engaging the engagement element with the fixed engagement portion. More specifically, the fixed engagement portion 2
As shown in FIGS. 10 and 11, 19 is fixed to the opening edge 202b on the opposite side of the hanging side, and has an opening window 219 on the side.
a, and the engagement wall 22 bent in the opening window 219a thereof.
3 is formed.

On the other hand, as shown in FIGS. 10 to 12, the engaging element 220 of this embodiment has a pair of shaft holes 221 in the opposing wall.
a, 221b channel-shaped main body 221
And a hook-shaped portion 226 protruding from the side of the main body 221 corresponding to the shape of the engaging wall 223. The main body 221 is attached to the door plate 282 on the side opposite to the suspension base. It is pivotally connected via a U-shaped mounting member 283 and a pin 221a serving as a vertical axis. More specifically, the mounting member 2
83 is fixed to the back surface of the door plate 282 by screws or the like, and has shaft holes 283a and 283b in the opposing wall, and a boss hole 283c from the lower surface of one opposing wall to the other opposing wall. The boss hole 28
The engaging element 220 is positioned between the shaft hole 283b of the other opposing wall and the hole 283a, 283c, 221.
The engaging element 220 is pivotally attached to the door plate 282 on the side opposite to the suspension base via the mounting member 283 by the pin 221a sequentially inserted through the a, 221b, and 283b. Then, the shaft hole 22 in one opposing wall of the engagement element 220 is formed.
A hole 221c for connecting a rod is formed at a position deviated from 1a, and one end 285a of a horizontal rod 285 is connected to the hole 221c via a connecting bush 284. A torsion spring 286, which is an elastic biasing element, is previously wound around the outer periphery of the boss hole 283c.
Is engaged with a notch 283d provided in a side wall of the mounting member 283, and the other end 286b is connected to the connecting bush 28.
4 is engaged with the inner periphery of the opening through a notch 284a provided in the opening 4. That is, the torsion spring 286 resiliently urges the engagement element 220 clockwise in a plan view using the mounting member 283 as a foothold.

The other end 285 of the horizontal rod 285
b protrudes from the base edge of the door plate 282 on the side opposite to the suspension base. More specifically, the other end 28 of the rod 285
As shown in FIG. 13, a small-diameter portion 285c is provided near 5b, and the other end 285b is inserted into a plate-like cap 287, and the small-diameter portion 285c is engaged with an inwardly bent piece 287a provided on the cap 287. Let me. Cap 287
A groove 287b is provided in the upper and lower good edges. On the other hand, at the base end of the door plate 282 on the side opposite to the suspension side, the door plate 281 on the suspension side when closed.
A plate member 288 disposed in a gap with the leading edge of the plate member 288 is attached (see FIG. 16), and the cap 287 is inserted through a rectangular guide hole 288a provided in the plate member 288. . At this time, the groove 2 of the cap 287
87b engages with projections 288b provided on both upper and lower edges of the guide hole 288a of the plate member 288, and the groove 28 of the cap 287
The movement of the horizontal rod 285 is prohibited at the position where the inner end of 7b is in contact with the projection 288b. As shown in FIG. 10, the plate member 288 engages a claw 288 d intermittently protruded on the inner surface side with the base edge of the anti-hanging side door plate 282 from below to above. Finally, a claw 288e on the upper end side, which is more elastic than the claw 288d, is pressed into the base edge to complete the mounting. Also,
The plate member 288 is provided with a notch 288c for closely accommodating a hinge 280 disposed between the door plate 281 on the hanging side and the door plate 282 on the opposite side of the hanging side.

With such a configuration, when the folding door 208 is closed in the order of FIG. 11 → FIG. 14 → FIG. 15 → FIG.
When the hanging side door plate 281 and the anti-hanging side door plate 282 gradually approach a flush state, and when the leading edge and the base edge of both door plates 281 and 282 perform an approaching operation, the anti-hanging side door plate 28
The other end 2 of the horizontal rod 285 protruding from the base end edge of the second rod 2
85b (strictly speaking, cap 287) is the hanging side door plate 281
The rod 285 is pressed by the distal end edge of the rod 285 and sinks from the distal end edge as shown by the arrow A in the figure, and the entire rod 285 slides in the direction of the distal end 285a. Then, this rod tip 285a
Is connected to the hole 221c deviated from the vertical shaft 221a of the engaging element 220 via the connecting bush 284, so that the engaging element 220 is connected to the vertical shaft 22 by the rod 285.
The hook-shaped portion 226 is urged around 1a, and rotates counterclockwise as shown by the arrow B in the figure, and engages with the engaging wall 223 of the fixed engaging portion 219 provided on the anti-hanging side opening edge 202b. Will be engaged. In particular, in this embodiment, the engagement wall 223 of the fixed engagement portion 219 and the engagement element 22
Since the hook-shaped portion 226 is bent to have substantially the same shape as the hook-shaped portion 226, the hook-shaped portion 226 can be inserted deeper into the engagement wall 223 without interfering with both. In addition, since the bending force is dispersed and supported by such a bent shape, the locked state can be made more reliable.

In this embodiment, the horizontal rod 285
Is provided in the gap between the two door plates 281 and 282, the plate member 288 can also function as a joint material, which is useful for improving the appearance. In addition, the notch 2 provided in the plate member 288
Since the hinge 280 is closely housed in the 88c, it is possible to prohibit rattling of the hinge 280 and improve the stability and reliability of the opening / closing function.

[0031]

As described in detail above, the present invention provides a one-sided laser.
This applies to special folding doors supported by
When the folding door is closed by providing an engaging element at the non-supporting end of the leading edge of the anti-hanging side door plate, the non-supporting end of the anti-hanging side door plate is held at the anti-hanging side opening edge. It is the possible ing <br/> to. Furthermore, in addition to the locking mechanism, non-support of the anti-hanging side door plate
Since the end is held by the engaging element, the door plate cannot be pryed open in the thickness direction at the time of locking, and the safety at the time of locking can be enhanced.

In particular, when the engaging element is configured to be rotatable using the closing operation of the folding door, the engaging element can be inserted at a position sufficiently deep with respect to the fixed engaging portion. ,
Safety at the time of locking can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention.

FIG. 2 is a perspective view showing a use state of the embodiment.

FIG. 3 is a perspective view showing the internal structure of the embodiment.

FIG. 4 is a schematic diagram showing the principle of the guide means in the embodiment.

FIG. 5 is a schematic rear view showing a main part of the embodiment.

FIG. 6 is an operation explanatory view of the embodiment.

FIG. 7 is a sectional view showing a main part in the embodiment.

FIG. 8 is a perspective view showing the main part.

FIG. 9 is a schematic view showing another embodiment of the present invention.

FIG. 10 is a perspective view showing still another embodiment of the present invention.

FIG. 11 is a plan sectional view of the embodiment.

FIG. 12 is an exploded perspective view showing the engagement element of the embodiment.

FIG. 13 is an exemplary exploded perspective view showing the periphery of the plate member of the embodiment;

FIG. 14 is an operation explanatory view corresponding to FIG. 11;

FIG. 15 is an operation explanatory view corresponding to FIG. 11;

FIG. 16 is an operation explanatory view corresponding to FIG. 11;

FIG. 17 is an operation explanatory view corresponding to FIG. 11;

[Explanation of symbols]

 2 opening 2b, 202b anti-hanging side opening edge 8, 9, 208 ... folding door 19, 219 ... fixed engaging part 20, 220 ... engaging element 81, 91, 181, 281 ... hanging side door plate 82 , 92, 182, 282: anti-hanging side door plate 221a: vertical axis (pin) 280: hinge 285: horizontal rod 285a: one end 285b: other end 286: elastic urging element (torsion spring) 288: plate member 288a: guide Hole 288c: Notch

Claims (6)

(57) [Claims] 1. A door plate on a hanging side hinged to an opening, a door plate on a non-hanging side hinged to a tip edge of the door plate, and these doors.
Locking the upper or lower end of the hanging side door plate when the plate is closed
Locking mechanism and one of the upper end or lower end of the door
A folding door having a rail for guiding and supporting, and wherein the leading edge of the door plate on the anti-hanging side can move to the left and right along the opening when opening and closing; A fixed engaging portion provided on the edge, and the fixed engaging portion is provided at the non-supporting end of the door plate on the side opposite to the hanging side by utilizing an approaching operation of the door plate to the opening edge on the side opposite to the hanging side when the door is closed. it comprises a engaging element to be engaged, prior to
When the door plate is closed by the engagement between the fixed engagement portion and the engagement element,
A folding door lock device, which stably holds an unsupported end of a door plate on a hanging side . 2. The engagement element according to claim 1, wherein the lower end of the front edge of the door plate on the side opposite to the hanging side is configured to be movable left and right by being guided by a rail provided at the lower opening edge of the opening. The locking device for a folding door according to claim 1, wherein an upper end of the front edge of the door plate is provided. 3. An apparatus according to claim 1, wherein the upper end of the front edge of the door plate on the opposite side of the hanging side is guided by a rail provided on the upper opening edge of the opening so that it can move left and right. 2. The folding door locking device according to claim 1, wherein the locking device is provided at a lower end side of a front edge of the door plate. 4. An engaging element is pivotally connected to a door plate on a side opposite to the suspension base via a vertical axis, and a portion of the engaging element deviated from the vertical axis is connected to one end of a horizontal rod. Along with
The other end of the horizontal rod is made to protrude from the base edge of the door plate on the side opposite to the hanging side via an elastic biasing element, and the leading edge of the door plate on the side of hanging side and the base of the door plate on the side opposite to the hanging side when closed. When approaching the end edge, the horizontal rod is urged by the leading edge and slid to one end side, and by this operation, the engaging element is pivotally urged about a vertical axis to engage with the fixed engaging portion. 4. The folding door locking device according to claim 1, 2 or 3, wherein: 5. A guide member provided at the base end of the door plate on the side opposite to the suspension side, which is provided in a gap between the front end edge of the door plate on the suspension side at the time of closing. 5. The folding door locking device according to claim 4, wherein the other end of the horizontal rod is inserted through the door. 6. The plate member is provided with a notch for closely accommodating a hinge disposed between the door plate on the hanging side and the door plate on the opposite side of the hanging side. Folding door lock device.