JPS6235930Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a pair of resin joining members that clamp the ends of the sheet materials to be joined. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sheet material joining tool that can easily, quickly and firmly join the ends of materials together, and that can be manufactured at low cost with a simple structure will be described below with reference to the drawings.

In Figs. 1 and 2, the sheet material joining tool 1 of the present invention is shown.
For example, two sheets 2 and 3 to be joined
It is provided with a pair of resin joining members 5 and 6 which clamp the end portions 2a and 3a of , and both joining members 5 and 6 are made of synthetic resin and have the same specifications.

The joining members 5 and 6 include a U-shaped main body 5a having semi-circular arc (U-shaped) grooves 5a1 and 6a1;
One side edge 5a2, 6 of the groove 5a1, 6a1 of 6a
A2 is provided with locking protrusions 5b and 6b, and a contact surface 5 is provided on the outer side of the proximal end of the locking protrusions 5b and 6b.
It is formed by protruding the locking parts 5c and 6c provided with c1 and 6c1. The locking protrusions 5b, 6b are in the grooves 5a1, 6.
It has a semi-cylindrical shape that protrudes in the opening direction of a1 and can be fitted into the groove of the other joining member in a substantially tight state, and meshing portions 5b1 and 6b1 are formed inside the base end thereof. Locking projections 5b, 6b of both joining members 5, 6
The engaging parts 5b1 and 6b1 can be engaged directly or by clamping the ends 2a and 3a of the sheet materials 2 and 3, and in this engaged state, the engaging part 5c of the joining member 5 and the joining member The other side edge 6a3 of the groove 6a1 of No. 6, and the locking portion 6c of the joining member 6 and the other side edge 5a3 of the groove 5a1 of the joining member 5, respectively.
The end portions 3a, 2a of the sheet materials 3, 2 can be sandwiched and pressed against each other. Further, the other side edges 5a3, 6a3 have contact surfaces 5a3 of the other side edges 5a3, 6a3.
A, 6a3A, a protruding piece 5 having flat sheet material adhesion surfaces 5d1, 6d1 that are flush with each other and protruding laterally;
d and 6d are integrally provided, and the sheet material adhesion surface 5
An adhesive layer is provided over the entire surface of d1 and the contact surface 5a3A, and over the entire surface of the sheet material adhesion surface 6d1 and the contact surface 6a3A, and a release paper is provided on the surface of the adhesive layer. It is pasted.

Next, using the pair of joining members 5 and 6 configured as described above, the ends 2 of the two sheet materials 2 and 3, which are, for example, synthetic resin thin films or cloth sheets, are
To explain the procedure for joining a and 3a, first
As shown in the figure, the release paper on the sheet material adhesion surfaces 5d1 and 6d1 of the bonding members 5 and 6 is peeled off, and portions near the ends of the sheet materials 2 and 3 are attached to the adhesive surfaces formed thereby. Paste it. At that time, the width of the end portions 2a, 3a of the sheet materials 2, 3 is such that the width of the end portions 2a, 3a is such that the width of the end portions 2a, 3a is
It is set to such an extent that it can cover S and the engaging portions 5b1 and 6b1. In this state, the locking protrusion of one joining member is elastically fitted into the groove of the other joining member to mesh the two engaging portions 5b1 and 6b1.

Therefore, the sheet material 2 is attached to the contact surface 6 of the locking portion 6c.
Between c1 and the contact surface 5a3A of the other side edge 5a3,
Between the groove surface 5S and the locking protrusion 6b, both engaging portions 5b
1 and 6b1 respectively in a compressed state,
Similarly, the sheet material 3 also has a contact surface 5c1 of the locking portion 5c.
and the contact surface 6a3A of the other side edge 6a3, between the groove surface 6S and the locking protrusion 5b, and between the meshing portions 5b1 and 6.
The sheet materials 2 and 3 are firmly and reliably held together by the large friction force generated between the sheet materials 2 and 3 and both joining members 5 and 6. It will be joined. Moreover, since the ends 2a and 3a of the sheet materials 2 and 3 are adhesively fixed to the sheet material adhesion surfaces 5d1 and 6d1 and the contact surfaces 5a3A and 6a3A, the sheet materials are not easily attached to the sheet material adhesion surfaces, etc. The adhesive force generated by pasting increases the reliability of bonding the sheet materials to each other. In particular, in the contact surfaces 5a3A and 6a3A, the sheet materials 2 and 3 and the adhesive layer are connected to the contact surfaces 5a3A and 6c1, and also to the contact surfaces 6a3A and 5c1. Therefore, since the sheet material 2 is in a clamped state, the sheet material 2 is pressed against the contact surface 5a3A, and the sheet material 3 is pressed against the contact surface 6a3A, and the corresponding contact surfaces 5a3A and 6a3A are , the adhesive strength of the adhesive is maintained at a very high level. Therefore, when it comes to the reliability of bonding sheet materials to each other using an adhesive, it can be said that this greatly contributes to improving the reliability. Therefore, as shown in FIG. 2, the sheet materials 2 and 3 are separated when they are stretched in opposite directions within a plane including the sheet material adhesion surfaces 5d1 and 6d1. Of course, even when they are stretched at an angle, as shown by the one-dot chain line or two-dot chain line in Fig. 2, the primary problem is that both joint members Since the locking protrusions are engaged, the bonded state of the sheet material can be maintained by the adhesive force generated by adhering the sheet material to the sheet material adhesion surface or the like. When the tensile force of the sheet material exceeds the adhesive force, the locking portion 6c and the other side edge 5a3 engage (press each other), and the joining member 5 is prevented from rotating (as indicated by the dashed dotted line). ), or the locking portion 5c and the other side edge 6a3 engage (press each other) to prevent the joining member 6 from rotating (as shown by the two-dot chain line), and the sheet Separation of materials 2 and 3 is prevented. At that time, the adhesive force by pasting the sheet material relieves the tensile force applied to the sandwiched part of the sheet material,
To improve the reliability of joining sheet materials to each other using a sheet material joining tool.

3 to 5 show other embodiments of the sheet material joining tool 1 of the present invention.

The sheet material joining tool 1 shown in FIG. 3 differs from the embodiment shown in FIGS. 1 and 2 in that the main body 5a,
The grooves 5a1 and 6a1 of 6a are formed into a relatively deep U-shape, and two-stage engaging parts 5b1, 5b1, 6b1, 6b1 are provided inside the locking protrusions 5b and 6b, and the locking parts 5c and 6c and the sheet Projection piece 5 having a material adhesion surface
d and 6d are made to protrude relatively long, and the protrusion lengths of the locking portion and the protruding piece are made approximately equal, thereby making it possible to further ensure the engagement of the locking protrusions 5b and 6b. At the same time, it is possible to increase the clamping area of the sheet materials 2 and 3 by the joining members 5 and 6,
Therefore, the bonding strength between the sheet materials 2 and 3 can be further improved. In this example, as mentioned above, since the locking part and the protruding piece protrude relatively long to approximately the same length, this can be used to apply adhesive to both the protrusion side and the locking part side. In the case where layers are provided, the sheet material is sandwiched between both adhesive layers in a sandwich pattern, and further improvement in the bonding strength of the sheet materials can be expected.

In the sheet material joining tool 1 shown in FIG. 4, the shapes of both joining members 5 and 6 are set so that they form a substantially cylindrical shape when they are integrated by clamping the ends of the sheet material. . The sheet material joining tool 1 has no corners and can be made compact as a whole, so it is suitable for joining both ends of a single sheet material to form a hose, a water tank, etc. can be adopted.

The sheet material joining tool 1 shown in FIG. 5 has one joining member 6 shown in FIGS.
Although it is formed in the same shape as , the other joining member 5
For example, the main part 7 consisting of a main body 5a, a locking protrusion 5b, and a locking part 5c, so that it can be used as a crosspiece that is spanned between piles or used as a horizontal crosspiece of a greenhouse, etc. A mounting portion 9 that can be mounted on a pile, support, etc. is provided in a row. Note that the mounting part 9
is fixed to a part to be attached, such as a stake, using a wire, string, etc. 11 inserted through a through hole 10. In addition, in the sheet material joining tool shown in FIGS. 4 and 5, the same parts as in the embodiment shown in FIGS. 1 and 2 are given the same reference numerals.

As mentioned above, the sheet material joining tool of the present invention uses a pair of resin joining members to clamp the ends of the sheet materials (one or more sheets) to be joined, and as a result, the ends of the sheet materials Simply pinch the engaging parts of the locking protrusions on both joining members,
Sheet materials can be joined extremely easily. Furthermore, the bond is strong and reliable. Therefore, when a wide sheet material is required, for example for assembling a greenhouse or covering an embanked slope, it is possible to easily and reliably join pre-made sheet materials to a specified width. Because you can get a seat,
Significantly improve work efficiency. Further, the sheet material joining tool of the present invention has an adhesive layer over the entire surface of the sheet material adhering surface of the protruding piece having the sheet material adhering surface and the contact surface of the other side edge of the U-shaped groove. is provided, and a release paper is pasted on the surface of the adhesive layer, so by pasting the area near the end of the sheet material to the adhesive surface formed by peeling off the release paper, the sheet material can be removed. The end of
The sheet materials are reliably fixed to the joining member in a state convenient for joining, and therefore the work of joining the sheet materials to each other can be performed efficiently in a stable state. In addition, the adhesive force obtained by adhering the sheet material to the adhesive surface further increases the reliability of bonding the sheet materials to each other.

In the sheet material joining tool of the present invention, the sheet material includes a net-like sheet having a mesh, and the side projecting portions of the locking parts 5c and 6c may not be engaged as long as the above-mentioned function as the sheet material joining tool is not impaired. Stop projection 5
It may be any part outside of the proximal end part of b, 6b or its vicinity.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
Fig. 2 is a sectional view showing the usage state of the invention, Fig. 3 is a sectional view showing another embodiment of the present invention together with its usage state, and Figs. 4 and 5 show other embodiments of the invention together with its usage state. FIG. 1... Sheet material connector, 2, 3... Sheet material,
2a, 3a... end of sheet material, 5, 6... joining member, 5a, 6a... main body, 5a1, 6a1...
Groove, 5a2, 6a2... one side edge of the groove, 5a3,
6a3...Other side edge of the groove, 5b, 6b...Locking protrusion, 5b1, 6b1...Matching portion, 5c, 6c...
Locking part.

Claims (1)

[Scope of utility model registration request] A pair of resin joining members sandwiching the ends of the sheet materials to be joined, the joining members both having:
The main body having a U-shaped groove has a locking protrusion on one side edge of the groove that protrudes in the opening direction of the groove, can be fitted into the groove of the other joining member in a substantially tight state, and has an engaging portion inside the locking protrusion. A locking portion having an abutting surface is provided on the outside of the proximal end portion of the locking protrusion or a portion near the proximal end thereof, and the engaging portion of the locking protrusions of both joint members formed in this way is formed. The locking surface of one joint member and the contact surface of the other side edge of the groove of the other joint member can be pressed against each other with a sheet material in between, and the other side edge of the groove A projecting piece having a flat sheet material adhering surface that is flush with the abutting surface of the other side edge protrudes laterally, and a U-shaped groove other than the sheet material adhering surface. 1. A sheet material joining tool, characterized in that an adhesive layer is provided over the entire surface of the contact surface of the side edge, and a release paper is pasted on the surface of the adhesive layer.