JP3533261B2 - Coupling tool - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting sheets and plates used in various fields such as construction, civil engineering, and fisheries. The present invention relates to a connector used when connecting a sheet or plate to a support or the like. 2. Description of the Related Art Conventionally, when connecting a danger prevention sheet provided around a scaffold at a building site, two sheets arranged adjacent to each other are connected to a column. At that time, it was performed by hand to pass a string through eyelet fittings provided on each sheet or wrap the string around a support column and tie it together, but this work is cumbersome and poor workability In addition, the knot of the string may loosen or loosen spontaneously, resulting in poor connection reliability. [0003] Therefore, there has been developed a connector capable of connecting two sheets without using a string, and connecting the connected two sheets to a column. [0004] Fig. 5 shows an example of the structure of this connecting tool. The connecting tool shown in the figure has a connecting mechanism 2 in which a synthetic resin band 1 kept in a substantially arc shape can be disengaged from each other at both longitudinal ends thereof. The band 1 extends integrally from a central portion of the connecting portion 5 extending therebetween. Each of the shaft portions 3 and 4 is provided with a locking projection 6 and 7. As shown in FIG. 6, the hooking projection 7 has a substantially right-angled triangular cross-sectional shape, and one end of a slope 71 thereof is connected to the shaft 4 by a hinge 75, and the elasticity of the hinge 75 It is always urged toward the protruding position side protruding to the side of the shaft portion 7 due to its nature. When the engaging projection 7 is located at the projecting position, the engaging surface 72 provided on the engaging projection 7 is perpendicular to the axis C of the shaft 4. The latching projection 7 retreats into the hole 41 formed in the shaft portion 4 against the elasticity of the hinge 75 and is located at a retracted position closer to the axis C side of the shaft portion 4. You can do it. The same applies to the latching projections 6 provided on the other shaft portions 3, 61 is a slope thereof, 65 is a hinge portion, 6
Reference numeral 2 denotes a hooking surface, and 31 denotes a hole for the shaft portion 3. The shafts 3 and 4 can be inserted into holes 300 provided in a sheet or plate as a member to be connected, which will be described later. The connecting portion 5, the shaft portions 3, 4, the locking protrusions 6, 7, and the hinge portions 65, 75 described above are integrally formed of synthetic resin. [0005] Two sheets S1 and S2
2, the sheet S is connected to each sheet S as shown in FIG.
The shafts 3 and 4 are inserted into the holes 300 and 300 of the shafts 1 and S2, respectively, and the locking surfaces 62 and 72 of the locking protrusions 6 and 7 face the sheets S1 and S2, respectively. Part 300,
Prevent escape from 300. As shown in FIG. 6, when the shaft 4 is inserted into the hole 300 of the sheet S2, the shaft 4
During the insertion, the locking projection 7 protruding to the side of the shaft portion 4 is pushed by the hole edge portion 301 of the hole portion 300 and retreats to the retreat position side as a virtual line with the hinge portion 75 as a fulcrum, When the locking projection 7 thus retracted passes through the hole 300, the locking projection 7 projects to the projecting position indicated by the solid line by the bias of the hinge 75, and the locking surface 72 faces the sheet S2. The shaft 4 is prevented from coming out of the hole 300. In FIG. 6, the arrow X indicates the relative movement direction of the sheet S2 with respect to the shaft 4 when the shaft 4 is inserted into the hole 300. The same applies to the case where another shaft 3 is inserted into the hole 300. When the two sheets S1 and S2 connected in this manner are connected to the support B, as shown in FIG. 5, the band 1 is wound by the connection mechanism 2 of the band 1 wound around the support B. Are connected to each other to fix the band 1 to the support B. [0007] The connecting member described with reference to Figs. 5 and 6 is detached from the sheets S1 and S2 prior to removing the sheets S1 and S2. Sheet S
To remove the connecting tool from S1 and S2, the shafts 3 and 4 are displaced from the hole 300 to the column B side by pushing the latching projections 6 and 7 with the fingers of the hand to displace them from the projecting position to the retreating position side. Extract to However, when the sheets S1 and S2 are connected to each other by the above-mentioned connecting tool and the connecting tool is fixed to the column B, the locking projections 6, 7 are located on the opposite side of the column B with the sheets S1 and S2 therebetween. In the case where the support B is a building scaffold support, the worker pushes the latching protrusions 6 and 7 from the scaffold side to pull out the shaft portions 3 and 4 from the hole 300 to the support B side. Cannot be performed, and even if such a work can be performed, the work must be performed by putting the hand out of the sheets S1 and S2, and the work is troublesome, and the work may be dangerous. The present invention has been made in view of the above circumstances, and has the same basic structure of the connecting member described with reference to FIGS. 5 and 6, but also connects members to be connected such as sheets and plates. It is an object of the present invention to provide a connecting tool that can easily and safely perform all operations necessary for removing the connecting tool used to fix it to a support or the like from the support side. [0010] The connecting device according to the present invention comprises:
And it can be inserted pair of shaft portions into the hole which is provided in each of the connecting members adjacent to each, and a connecting portion over the mutual of the pair of shaft portions, a fixing member such as a strut extending out from the connecting portion a band wrapped around the the locking projection provided on each of said pair of shaft portions, the band side of the locking projection
And opposite the projecting position and the retracted position closer toward the axis of the shaft portion from its projecting position of the connecting vital the engaging projection on the shaft portion to the side of the <br/> shank and provided in the hinge portion to constantly urge the engaging projection in the projecting position side and distal end side of the arms Desa extending in a direction approaching to the band from the locking projection with it allows to elastically displaced between And a pushing operation section for displacing the latching projection to the retreat position side with the hinge section as a fulcrum by the pushing operation. In the connecting device of this construction, when a pair of shaft portions are individually inserted into holes of two adjacent members to be connected, the plugs protrude to the side of the shaft portion during the insertion. After the latching projection retracts to the retreat position side with the hinge portion as a fulcrum and passes through the hole, the latching projection projects to the projecting position by the bias of the hinge portion, and the shaft portion comes out of the hole. To prevent that. Thereby, the two connected members are connected by the pair of shaft portions and the connecting portion extending therebetween. In the state where the two connected members are connected in this manner, the pushing operation portion is located on the fixed member side of the connected member, so that the pushing operation portion can be pushed from the fixed member side. Then, when the pushing operation portion is pushed in such a manner, the latching projection is displaced toward the retreat position side with the hinge portion as a fulcrum, so that the shaft portion is pulled out from the hole portion of the connected member to cover the connecting member. It can be removed from the connecting member. The band is fixed by winding it around a fixing member such as a column. FIG. 1 shows a connector A according to a first embodiment of the present invention. In this connection tool A, reference numeral 1 denotes a synthetic resin band which is maintained in a substantially arc shape, and has a connection mechanism 2 which can be disengaged from each other at both ends in the longitudinal direction. The coupling mechanism 2 is provided with a receiving member 21 provided at one end of the band 1.
And an insertion piece 25 provided at the other end of the band 1 so as to be insertable into and removable from the receiver 21. The receiving member 21 has an outer holding piece 22 and an inner holding piece 23 formed in a bifurcated shape facing each other in the inner and outer directions. A serrated engaging claw group 24 is provided on the inner surface side of the outer holding piece 2. are doing. Insert 2
5 has a serrated engagement claw group 26 on the outer surface side. 2
7, 28 and 29 are knobs. In the connecting mechanism 2, the band 1, which is maintained in an arc shape, is reduced in diameter and inserted into the receiving member 21.
Is inserted, the insertion piece 25 is held by the elasticity peculiar to the synthetic resin provided on the outer holding piece 22 and the inner holding piece 23 of the receiving body 21, and the engaging claws 24 of the outer holding piece 22 are held. And the engaging claw group 26 of the insertion piece 25 mesh with each other, and the meshing ensures that the receiver 21 and the insertion piece 25 are securely connected. Reference numerals 3 and 4 denote shaft portions, and reference numeral 5 denotes a connecting portion extending between the pair of shaft portions 3 and 4. The band 1 extends integrally from a central portion of the connecting portion 5. A hooking projection 6 is provided on one shaft 3, and a hooking projection 7 is provided on the other shaft 4. As shown in FIG. 3, the hooking projection 7 provided on the other shaft 4 has a substantially right-angled triangular cross-sectional shape, and one end of the slope 71 is hinged to the shaft 4.
The hinge portion 75 is always urged by the elasticity of the hinge portion 75 toward a protruding position side protruding to the side of the shaft portion 4 as shown by a solid line in FIG. An arm 78 extends from the hooking projection 7 in a direction approaching the band 1, and a pushing operation section 79 is provided at a distal end of the arm 78. The pushing operation portion 79 is taller than the hooking projection 7, and the pushing operation allows the hooking projection 7 to be displaced toward the retreat position side with the hinge portion 75 as a fulcrum. The latching projection 7, the arm 78, and the pushing operation section 79 are connected to a hinge 75
Of the shaft portion 4 against the elasticity of the shaft portion 4. The same applies to the latching projections 6 provided on one of the shaft portions 3, 61 is its slope, 65 is a hinge portion,
Reference numeral 68 denotes an arm, reference numeral 69 denotes a pushing operation unit, and reference numeral 31 denotes a hole of the shaft 3. Note that the shaft portions 3 and 4 can be inserted into a hole portion 300 of an eyelet metal fitting provided in a connected member described later. The band 1, the connecting portion 5, the shaft portions 3 and 4, the latching protrusions 6, 7, the hinge portions 65 and 75, the arms 68 and 78, and the pushing operation portions 69 and 79 described above are integrally formed of synthetic resin. ing. Next, with reference to FIGS. 2 and 3, a description will be given of a case in which the connecting member A, which connects two building sheets S1 and S2 as connected members, is fixed to a scaffolding column B for building. Eyelets are attached to the sheets S1 and S2, and holes of the eyelets are denoted by reference numeral 300. Regarding the connection between the sheets S1 and S2, the eyelet holes 300,
The shaft portions 3 and 4 are inserted into 300, respectively, and the locking projections 6 and 7 face the sheets S1 and S2 to prevent the shaft portions 3 and 4 from coming out of the holes 300 and 300. Further, as shown in FIG. 3, in the other shaft portion 4, the arm 78 penetrates the hole portion 300, and the pushing operation portion 79 is located on the opposite side of the locking projection 7 across the sheet S2, that is, on the support B side. I do. Although not shown, the same applies to one of the shaft portions 3. Thus, the two sheets S <b> 1 and S <b> 2 are connected to each other by the shaft portions 3 and 4 and the connecting portion 5. In addition, the shaft portions 3 and 4
The operation of the hooking projection 6 when inserting into the holes 300, 300 is the same as that described above with reference to FIG. 6, and the description thereof is omitted here. Further, the band 1 is wound around the support B,
In addition, the engaging claw group 24 on the receiving body 21 side of the connecting mechanism 2 and the engaging claw group 26 on the insertion piece 25 side inserted into the receiving body 21 are engaged with each other and connected to each other.
Are fixed around the support B. Therefore, the two sheets S1 and S2 are connected to the support B. When removing the connecting member A from the seats S1 and S2, the operator pushes the pushing operation portions 69 and 79 with the fingers of the hand as shown by the arrow P in FIG. By doing so, as indicated by a virtual line in FIG.
Since the latching projections 61 and 71 are displaced toward the retreat position side with the hinge portions 65 and 75 as fulcrums, the shaft portions 3 and 4 are pulled out from the holes 300 and 300 of the sheets S1 and S2, and the connecting member is connected to the sheet S1. , S2. FIG. 4 shows a connector A according to a second embodiment of the present invention.
Is shown. The connection tool A is different from that of the first embodiment in that the connection portion 5, the shaft portions 3, 4, the locking projections 6,
7, while the hinge portions 65 and 75, the arms 68 and 78, and the push-in operation portions 69 and 79 are integrally formed of synthetic resin, only the band 1 is separately formed of synthetic resin.
The only difference is that these two molded bodies are connected by a pin member 9 so as to be relatively rotatable. Otherwise, the configuration is the same, and therefore, the same portions are denoted by the same reference characters and detailed description of the configuration is omitted. According to the connecting member A, the same operation as that of the first embodiment is exhibited. In particular, according to the connecting device A, even when the support column (not shown) is inclined, the band 1 is rotated with respect to the connecting portion 5 so that the band 1 is rotated.
Can be adjusted to the posture of the column. In the connecting device of the present invention, it is possible to adopt a configuration other than that shown as the band 1. According to the present invention, the connecting members can be connected only by inserting a pair of shaft portions separately into the holes of the two connected members adjacent to the edge. It can be wrapped around the fixing member and fixed. In addition, after the connection, the locking projections provided on each of the pair of shaft portions not only have the effect of preventing the detachment of the connected member, but also have the effect of increasing the connection reliability, but also work of removing from the connected member. Can be easily and safely performed from the fixing member side. The connecting device of the present invention can be used not only for the applications described in the embodiments, but also for connecting various sheet materials and plate materials such as a curing sheet for civil engineering.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a coupler according to a first embodiment of the present invention. FIG. 2 is a partially broken plan view showing a use state of the coupler according to the first embodiment. FIG. 3 is an enlarged sectional view taken along line III-III in FIG. FIG. 4 is a plan view of a connector according to a second embodiment of the present invention. FIG. 5 is a partially broken plan view showing a use state of a conventional connector. FIG. 6 is an enlarged sectional view taken along the line VI-VI of FIG. 5; [Description of Signs] A Connecting Tool B Supporting Column (Fixed Member) S1, S2 Sheet (Connected Member) 1 Band 3, 4 Shaft 5 Connecting Portion 6, 7 Hanging Projection 65, 75 Hinge Portion 68, 78 Arm 69, 79 Push-in operation part 300 hole

Continuation of the front page (72) Inventor Kazushi Yasuhara 766 Yasutoshi, Yasutomi-cho, Shiso-gun, Hyogo Pref. (U, U) Real opening Sho 61-161354 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04G 21/32

Claims (1)

(57) a pair of shaft portions which can be inserted into the hole which is provided in each of the patent scope claimed is: 1. A phase adjacent the member to be connected, connecting portions across between each other the pair of shaft portions When the band is wound around the fixing member, such as a post extending out from the connecting portion, and a locking projection provided on each of said pair of shaft portions, the locking projection
Of the above band-side connecting vital above <br/> locking projection opposite to the shaft portion approaches toward the axis of the shaft portion from the protruding position and the protruding position to the side of the shaft portion a hinge portion of the locking projection to constantly urge the said projecting position side with allows to elastically displaced between the retracted position, the arms Desa extending in a direction approaching to the band from the locking projection A push operation unit provided on the distal end side and displacing the latching projection to the retreat position side with the hinge portion as a fulcrum by the pushing operation.