JP2002305988A - Joint, fastening method by utilizing the joint, and fastening unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint improved in durability and increased in strength, capable of being easily fitted, and therefore capable of being improved in workability, and to provide a fastening unit for which the joint is utilized. SOLUTION: The joint is composed of a pair of catch frames 3, 3 and a wedge 4, wherein the catch frames 3 each comprises a frame body 3A which is curved, a hook 3a which is positioned on one of both the ends of the frame body, a fixing piece 3d which is bent from the base end of the hook in the direction perpendicular to the surface of the hook 3a, and a plurality of wedge- guiding pieces 3c the each of which is separately positioned on the other end of the frame body, so that a group of the wedge guiding-pieces is arranged in a tongue-and-proove state against another group of the pieces positioned on the other catch frame and the wedge is inserted into a space formed between the groups of the pieces while the two groups of the pieces are engaged with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint and a fastening device using the joint. More particularly, the present invention relates to a joint suitable for connecting a support frame for fixing a sheet such as a greenhouse to a column made of pipe or the like. The present invention relates to a fastening device using a joint.

[0002]

2. Description of the Related Art In general, a tunnel-type pipe house such as a greenhouse for breeding animals and plants has a large number of arched pipe columns standing as a frame on the ground, and extends along the longitudinal direction on the front side of the pipe columns. A large number of sheet supporting frames having dovetail grooves are installed orthogonally, and the transparent synthetic resin sheet is partially fixed by the sheet supporting frame to extend the sheet on the framework.

[0003] When the seat support frame is connected to the pipe support, for example, Japanese Utility Model Application Laid-Open No. 63-193.
As described in Japanese Patent No. 441, a metal fitting is hooked on a dovetail groove.

However, in such a method, there is a problem that the vinyl sheet sandwiched between the dovetail grooves is easily damaged by the edge of the metal fitting. Further, in a case where a thick pipe-like column and a frame are connected to each other, There is a problem that the hook portion of the bracket is deformed and falls off.

Further, according to the known method shown in FIG. 6, an opening 62b is formed by a bent supporting piece 62c on the opposite side of a dovetail groove 62a in which a frame 62 grips a sheet, and Nipping width part 6 of nipping frame 63
3b is connected to the opening 62b, and the hook 63a is locked by the support piece 62c. The holding frame 63 is tightened by the bolt 63d and the nut.

According to such a method, the vinyl sheet is not damaged and the strength of the hook 63 can be sufficiently ensured. However, since the holding frame 63 is connected by the bolt 63d and the nut, the connection is made. It is difficult to position the hole 63c, and the holding frame 63
Is flat, so that it does not conform to the support column 61 uniformly, and play is likely to occur.

Further, according to the known method shown in FIG. 7, the hooks 73a, 73a of the connecting frame 73 are inserted into the opening 72b of the frame 72 and locked by the support pieces 72c. After the insertion, the wedge 74 is driven in from the side.

According to this method, the attaching / detaching operation is easy, but since the hook 73a is merely engaged with the supporting piece 72c, the hook 73a is easily deformed when it is connected to the thick column 71, and the strength and durability are improved. Will be lacking.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to provide a joint which is firmly attached when a frame is attached to a column and which uses a joint. .

That is, in this case, there is no breakage of the sheet,
Because it is easy to attach and detach and align,
It is another object of the present invention to provide a joint for a greenhouse which is excellent in strength and durability without falling off and a fastening device using the same.

[0011]

In order to solve the above-mentioned problems, a first means comprises a pair of holding frames and a wedge. Each holding frame is provided on a curved frame body and one end of the frame body. And a plurality of wedge guide pieces spaced apart from each other on the other end side of the frame main body, and one wedge guide piece is arranged staggered with respect to the other wedge guide piece, and each wedge guide piece is The wedges are driven into the wedge guide pieces while being alternately fitted.

Similarly, the second means comprises a pair of first and second holding frames and a wedge. The first holding frame includes a curved frame main body and a hook provided at one end of the frame main body. And a first wedge guide piece bent outward at the other end of the frame main body. The second sandwiching frame includes a curved frame main body, a hook provided at one end of the frame main body, and the frame. It consists of a second wedge guide piece bent inward on the other end side of the main body,
The wedge is driven between the first and second wedge guide pieces while the first wedge guide piece is over the second wedge guide piece.

Similarly, the third means comprises a pair of holding frames and wedges, each holding frame being bent to a curved frame main body, a hook provided at one end of the frame main body, and the other end of the frame main body. And a wedge guide piece provided with a tapered surface on the side surface. The wedge is composed of a plate-shaped main body and hook portions having L-shaped cross sections provided on both sides of the main body. The wedge is driven between the wedge guide pieces while holding the wedge guide pieces together.

Similarly, the fourth means is to move the seat support frame having dovetail grooves along the length direction on the front side and having an opening regulated by a pair of L-shaped support pieces on the back side to the support. In a fastening device that is connected via a joint, the joint includes a pair of holding frames and a wedge, and each holding frame includes a curved frame body, a hook provided at one end of the frame body, and a frame body. A plurality of wedge guide pieces spaced apart from each other on the end side, one of the wedge guide pieces being staggered with respect to the other wedge guide piece; , The wedge guide pieces are alternately fitted and the column body is sandwiched between the columns, and the wedges are driven between the respective guide pieces to tighten the frame body. Than it is.

[0015] Similarly, a fifth means is to mount a seat support frame having a dovetail groove along the length direction on the front side and an opening regulated by a pair of L-shaped support pieces on the back side to the support column. In a fastening device that is coupled via a joint, the joint includes a pair of first and second holding frames and a wedge, and the first holding frame is provided with a curved frame body and one end side of the frame body. A hook provided on the other end of the frame main body, the first wedge guide piece bent outward, and the second holding frame includes a curved frame main body and a hook provided on one end side of the frame main body. And a second wedge guide piece bent inward toward the other end side of the frame body, and a support is provided on the frame body with the first wedge guide piece riding over the second wedge guide piece. Sandwich the said The click and the locking piece with multiplying each argument to the support piece, driving the wedge between the first and second wedge guide pieces, and is to fasten the frame body.

Further, the sixth means is to move the seat support frame having dovetail grooves along the length direction on the front side and having an opening regulated by a pair of L-shaped support pieces on the back side with respect to the support. In a fastening device for coupling via a joint, the joint comprises a pair of holding frames and a wedge, each of the holding frames being a curved frame body, a hook provided on one end side of the frame body, and a base of the hook. A locking piece bent from the end in the plate thickness direction, and a wedge guide piece provided on the other end of the frame main body and provided with a tapered surface on a side surface, wherein the wedges are on both sides of the main body. The cross section provided with the hook is formed by an L-shaped hook portion. The hook and the locking piece are respectively hooked on the support piece, and a support is sandwiched by the frame main body. Tying the guide pieces Driving the wedge between the reluctant the respective wedge guide pieces, and is to fasten the frame body.

[0017] The supporting frame is clamped by the clamping frame, and the wedge guide pieces are brought close to each other by being clamped by a mounting bracket so that the frame and the supporting column are connected to each other. The present invention proposes a fastening method using a joint.

[0018]

An embodiment of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, a support frame 2 is disposed so as to be orthogonal to a pipe-shaped support 1 which is a structure of a pipe house as a greenhouse.

A dovetail groove 2a is formed in the support frame 2, and a sheet A made of vinyl or other synthetic resin is used.
Are mounted in a known manner by means of elastic locking lines.

On the side opposite to the dovetail groove 2a, a support frame 2 is provided.
Opening 2b is formed, and the bent support piece 2c is formed.
Has been reinforced. The dovetail groove 2a and the support 2c are connected by a leg 2d.

FIGS. 1, 4 and 5 show a joint according to the present invention.
There are three types: The joint P shown in FIG. 1 includes a pair of holding frames 3 and 3 and a wedge 4, and each holding frame 3 has a curved frame body 3A and the frame body 3A.
Hook 3a provided on the base end side of the hook 3a, a locking piece 3d bent in the thickness direction, that is, the horizontal direction from the base end of the hook 3a, and a plurality of wedges provided on the other end side of the frame body 3A. One wedge guide piece 3c is arranged in a staggered state with respect to the other wedge guide piece 3c, and the wedge guide pieces 3c, 3c are fitted alternately with each other. The wedge 4 is driven into the inside 3c.

The joint P shown in FIG. 4 comprises a pair of first and second holding frames 3 and 3 and a wedge 4. The first holding frame 3 has a curved frame body 3A and a frame body 3A. A hook 3a provided on the base end side, a locking piece 3d bent in the thickness direction from the base end of the hook 3a, and a first wedge guide piece 3E bent outward toward the other end of the frame body 3A. The second holding frame 3 includes a curved frame main body 3A, a hook 3a provided on the base end side of the frame main body 3A, and a locking piece 3d bent from the base end of the hook 3a in the plate thickness direction. A second wedge guide piece 3D bent inward is provided at the other end of the frame main body 3A, and the second wedge guide piece 3D is passed over the first wedge guide piece 3E. Between the first and second wedge guide pieces 3E and 3D Those constructed as striking the wedge 4.

The joint P shown in FIG. 5 comprises a pair of holding frames 3, 3 and a wedge 5. Each holding frame 3 has a curved frame main body 3A and hooks provided on the base end side of the frame main body 3A. 3a, a locking piece 3c bent in the thickness direction from the base end of the hook 3a, and a wedge guide piece 3c provided on the other end side of the frame body 3A by bending and provided with a tapered surface 3e on the side surface. The wedge 5 is a plate-shaped main body 5a.
And a hook portion 5 having an L-shaped cross section provided on both sides of the main body 5a.
b, and wedge guide pieces 3c, 3c being held together by the hook portion 5b.
The wedge 5 is driven between c and 3c.

In each of the above joints P, the locking piece 3d is
A rib for reinforcing each hook 3a may be provided on the side surface b.

Then, the seat support frame 2 is connected to the column 1 via the joints P. That is, the fastening device according to each embodiment of FIGS. 1, 4 and 5 has a dovetail groove 2a along the length direction on the front side, and a pair of L-shaped support pieces 2 on the back side.
The seat support frame 2 having the opening 2b regulated by c is connected to the column 1 via a joint P.

More specifically, in FIG. 1, the hooks 3a, 3a formed at one end of the two holding frames 3, 3 are rotated by 90 degrees after being inserted into the opening 2b of the support frame 2 in FIG. The hooks 3a, 3a are engaged with the support pieces 2c, with the narrow width portions 3b, 3b fitted into the openings 2b. The two holding frames 3 hold the support 1 from both sides, and a plurality of wedge guide pieces 3 formed on the other end.
c and 3c cross each other.

Then, a plurality of intersecting wedge guide pieces 3c,
The wedge 4 is inserted from above into the space 3c, and the support frame 2 and the column 1 are firmly fastened by the two holding frames 3,3.

FIG. 2 illustrates a state in which a plurality of wedge guide pieces 3c, 3c formed at the other ends of the holding frames 3, 3 cross each other and a state in which the wedge 4 is inserted from above. is there.

As is apparent from the figure, since the wedge 4 is formed in a tapered shape, a plurality of intersecting wedge guide pieces 3 are formed.
When it is inserted between c and 3c, it can be easily inserted, and the holding frames 3, 3 can be pulled toward each other as they are sequentially pushed down, and can be firmly fastened to the column 1.

Further, if the shape of the holding frames 3, 3 is appropriately formed with a curvature corresponding to the outer shape of the pipe-shaped support 1, the tightening can be performed firmly without looseness when tightened.

Further, the shape of the holding frame 3 is such that the holding width portion 3b at one end is formed vertically symmetrically, and the wedge guide piece 3c at the other end is connected to one holding frame 3 and the other holding frame 3
If they are formed so as to complement each other with respect to the center line, common parts can be used by attaching the same holding frame in the opposite direction.

In the above embodiment, the wedge guide piece 3c of the holding frame 3 is formed in a U-shape, but it is easily understood that the same effect can be obtained even if the wedge guide piece 3c is formed in a V-shape.

Although an example is shown in which the column 1 and the support frame 2 are orthogonal to each other, when they intersect in an inclined state, the shape of the coupling frame 3 can be changed as appropriate according to the angle of inclination. The fastening state corresponding to the inclination angle can be ensured.

Further, in the above embodiment, the support frame 2 is connected to the pipe-like column 1, but the support frame 2 may be attached to the rectangular column. it can.

FIG. 3 is a side view showing a state in which the support frame 2 is attached to the column 1 using the holding frame 3 and the wedge 4. The sheet A is attached to the left dovetail groove 2a by a known method, but is the same as FIG. 1 and is not shown.

FIG. 4 shows the wedge guide piece 3c of the holding frame 3.
Next, another embodiment in which the wedge 4 is inserted is shown. In the above embodiment, a plurality of wedge guide pieces 3c are formed, whereas in the example of FIG. 4, only one wedge guide piece 3c is provided. Is formed.

Moreover, the wedge guide piece 3c of the right holding frame 3 is formed in a bag shape over the wedge guide piece 3c of the left holding frame 3.

Then, the wedges 4 are inserted into the U-shaped portions as shown in the figure, and the holding frames 3, 3 are tightened.

FIG. 5 shows still another embodiment.
A tapered portion 3e is formed on each of the wedge guide pieces 3c, 3c of the holding frames 3, 3, and the wedges 5 are formed in a hook shape on both sides.
The clamping members 3 and 3 are tightened by fitting a barrel slide member.

Instead of the above embodiment, one guide piece 3c, 3c of the holding frame 3, 3 is formed straight, a taper portion is formed inside the slide member, and the slide member is formed as a wedge. However, it can be formed by a metal fitting or a plastic molded product.

[0042]

As described above, the present invention has the following effects.

(1) According to the invention described in claim 1,
Since each holding frame consists of a curved frame body,
If the curved portion is formed according to the outer shape of the column to be clamped, the column can be firmly clamped.

Further, since the hook has a sufficient strength when engaging with the seat supporting frame to be fastened, a joint having strong fastening and improved reliability can be obtained.

Further, since the wedges are driven into the wedge guide pieces while the wedge guide pieces are alternately fitted, the wedge can be easily inserted.

(2) According to the invention described in claim 2 of the present invention, both the first wedge guide piece and the second wedge guide piece are formed by one bending, and the first wedge guide piece is formed. Since the wedge is driven between the first and second wedge guide pieces while the piece is over the second wedge guide piece, the strength of the two wedge guide pieces is sufficient and the fastening force is strong. Fastening reliability is obtained.

(3) Further, according to the invention described in claim 3 of the present invention, the wedge guide piece which is provided to be bent at the other end of the frame main body and has a tapered surface on the side surface has a cross section. Since the joint is fastened by the wedge having the L-shaped hook portion, a joint having strong fastening strength is obtained.

(4) Further, according to the fourth, fifth and sixth aspects of the present invention, the above-mentioned joints have an effect.
That is, according to the joint and the fastening device using the joint of the present invention, the hook of the holding frame and the support piece formed at the opening of the support frame are hooked at right angles, so that On the other hand, even when the holding frame is attached, the support frame and the column are firmly connected without easily deforming the hook, and strength and reliability can be improved.

In particular, the strength of the hook can be improved by bending and reinforcing the tip of the hook even when the depth of the opening is small.

In addition, since it is a simple operation of inserting or sliding a wedge in a portion where the wedge guide pieces of the holding frame intersect, the mounting operation is easy and the speed can be increased. .

Further, since the shape of the holding frame is formed in accordance with the outer shape of the column, the wedge guide piece has no backlash and can ensure the stability.

It should be noted that the sandwiching frame comes into contact with the sheet around the dovetail groove and does not damage the sheet, thereby maintaining the same function as the conventional one.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a fastening device using a joint according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a state of a fastening portion of the fastening device using the joint according to the embodiment of the present invention.

FIG. 3 is a side sectional view of a state of a fastening portion of the fastening device using the joint according to the embodiment of the present invention.

FIG. 4 is a perspective view showing a main part of a fastening device using a joint according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a main part of a fastening device using a joint according to a third embodiment of the present invention.

FIG. 6 is a perspective view showing a conventional frame fastening device for a seat frame.

FIG. 7 is a perspective view showing a conventional frame fastening device for a different seat frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support 2 Support frame 2a Dovetail groove 2b Opening 2c Support piece 3 Holding frame 3a Hook 3b Narrow width part 3c Wedge guide piece 3e Locking piece 4 Wedge 5 Wedge (slide member)

Claims (6)

[Claims] 1. A frame comprising a pair of holding frames and a wedge, each holding frame comprising a curved frame body, a hook provided at one end of the frame body, and a plurality of wedges spaced at the other end of the frame body. A guide piece, one wedge guide piece is staggered with respect to the other wedge guide piece,
A joint configured to drive wedges into the wedge guide pieces while alternately fitting the wedge guide pieces. 2. A frame comprising a pair of first and second holding frames and a wedge, wherein the first holding frame includes a curved frame main body, a hook provided at one end of the frame main body, and a frame main body. A first wedge guide piece bent outward toward the end side, and the second holding frame includes a curved frame main body, a hook provided at one end of the frame main body, and a second end of the frame main body. A second wedge guide piece bent inward, and the first wedge guide piece and the second wedge guide piece in a state in which the second wedge guide piece is passed over the second wedge guide piece. A joint configured to drive a wedge. 3. A pair of holding frames and a wedge, each holding frame being provided with a curved frame main body, a hook provided on one end side of the frame main body, and a bent side provided on the other end side of the frame main body. A wedge guide piece having a tapered surface, wherein the wedge is composed of a plate-shaped main body and hook portions having L-shaped cross sections provided on both sides of the main body. A joint configured to drive the wedge between the respective wedge guide pieces while tying the wedge. 4. A seat support frame having a dovetail groove along the length direction on the front side and an opening regulated on the back side by a pair of L-shaped support pieces is connected to the support via a joint. In the fastening device, the joint includes a pair of holding frames and a wedge, and each of the holding frames is separated from a curved frame main body, a hook provided at one end of the frame main body, and the other end of the frame main body. A plurality of wedge guide pieces, one of the wedge guide pieces is staggered with respect to the other wedge guide piece, and the hook and the locking piece are respectively hooked on the support piece and The wedge guide pieces are alternately fitted to each other, a support is held between the frame bodies, the wedge is driven between the respective guide pieces, and the frame body is tightened. Tying device. 5. A seat support frame having a dovetail groove along the length direction on the front side and an opening regulated on the back side by a pair of L-shaped support pieces is connected to the support column via a joint. The coupling comprises a pair of first and second holding frames and a wedge, wherein the first holding frame comprises a curved frame body and a hook provided on one end of the frame body. A second wedge guide piece bent outwardly at the other end of the frame body, the second holding frame includes a curved frame body, a hook provided at one end of the frame body, and the other end of the frame body. A second wedge guide piece bent inward toward the side, and a frame is clamped by the frame main body in a state in which the first wedge guide piece has passed over the second wedge guide piece. The locking piece is While hooking on the support piece respectively, driving the wedge between the first and second wedge guide pieces,
A fastening device configured to fasten the frame body. 6. A seat support frame having a dovetail groove along the length direction on the front side and an opening regulated on the back side by a pair of L-shaped support pieces is connected to the support column via a joint. In the fastening device, the joint comprises a pair of holding frames and a wedge, and each holding frame is bent to a curved frame body, a hook provided at one end of the frame body, and the other end of the frame body. A wedge guide piece provided with a tapered surface on the side surface, wherein the wedge is composed of a plate-shaped main body and hook portions having L-shaped cross sections provided on both sides of the main body. And hooking the wedges between the respective wedge guide pieces while tying each wedge guide piece through the hook portion, thereby tightening the frame body. Fastening device.