JPH0413449Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a clip for fixing, for example, panels to each other or panels and decorative materials in a superposed state. This invention relates to an improvement in a clip that is made up of two parts: a cylindrical body that is fitted into the clip and a press-fit body that is inserted into the cylindrical body.

``Prior art'' For example, as a conventional clip of this type,
- There is one shown in Publication No. 37847.

Although not specifically shown, the conventional clip includes a cylindrical body that is fitted into a locking hole in a panel;
It consists of a press-fitting body with a circular cross section that is inserted into the cylindrical body, and the former cylindrical body forms a circular insertion hole into which the press-fitting body is inserted, and has a flange portion on the opening edge of the insertion hole. At the same time, a plurality of slits are formed in the wall to allow expansion, and engaging claws are integrally provided at appropriate positions on the inner surface of the wall divided by the slits. .

The latter press-fitting body is composed of an enlarged head and a shaft portion vertically disposed on the lower surface of the head, and is configured to form a threaded surface on the outer periphery of the shaft portion.

In actual use, after the cylindrical body is inserted into the locking hole drilled in one panel through the flange part, the insertion hole of the body is connected to the through hole of the other panel. Once the matched state is obtained, insert the press-fit body into the insertion hole of the main body, and engage the engaging claw with the threaded surface of the shaft portion of the press-fit body, and at the same time, slit each dividing wall of the cylindrical body. The two panels are overlapped and fixed by expanding outward through the panel.

In addition, if it becomes necessary to release the overlapping fixation of the panel, insert a tool such as a screwdriver into the cross groove formed in the enlarged head of the press-fit body and rotate the press-fit body in the specified direction. If so, the press-fitting body can be easily pulled out from the cylindrical body by the action of the threaded surface formed on the shaft portion, so that the fixed state of the panel can be released.

``Problems to be solved by the invention'' However, in the case of conventional clips, the threaded surface formed on the outer periphery of the shaft of the press-fit body allows the clip to be easily pulled out from the cylindrical body simply by rotating the press-fit body. Therefore, it has the advantage that the overlapping fixation of the panel can be easily released, and the clip itself can also be reused. Since only the protruding engaging claws are engaged, if unexpected vibrations are applied to the fixed parts after the panels are overlapped and fixed,
There was a major problem in that the press-fit body naturally rotated in the direction of removal due to the action of the threaded surface, causing loosening of the overlapping and fixed state of the panel.

``Means for Solving the Problems'' Therefore, the present invention was developed to effectively solve the problems of the conventional clips. , a press-fitting body inserted into the cylindrical body, the cylindrical body forming an insertion hole into which the press-fitting body is inserted, and a slit in the wall portion to allow expansion; An engaging pawl is integrally provided on the inner surface of the wall divided by the slit, and the press-fitting body has a shaft portion hanging down on the lower surface of the enlarged head, and a threaded surface is formed on the outer periphery of the shaft portion. Assuming that the clip is for polymerization, the insertion hole of the cylindrical body is made into a rectangular shape, and a pair of elastic wings extending linearly in opposite directions is formed at appropriate positions on the outer periphery of the shaft of the press-fitting body. The elastic blade is pressed against the inner surface of the wall of the cylindrical body defining the side of the rectangular insertion hole.

"Function" Accordingly, in the present invention, when the shaft portion of the press-fit body is inserted into the insertion hole of the cylindrical body, the pair of elastic wings are bent inward and easily inserted into the insertion hole. However, when the blade is completely inserted into the insertion hole, each elastic blade returns to its original straight state due to its own elasticity, and automatically attaches to the inner surface of the wall of the cylindrical body that defines the sides of the rectangular insertion hole. Since the press-fit body can be prevented from rotating due to the action of the threaded surface, even if unexpected vibrations are applied to the overlapped and fixed parts of the panel, the press-fit body will not rotate in the removal direction due to the action of the thread surface. can be completely prevented.

``Example'' Below, the present invention will be described in detail based on an example illustrating the present invention.
As shown in FIGS. 2A and 2B, it is composed of two parts: a cylindrical body 1 that is fitted into a locking hole in a panel, and a press-fit body 11 that is inserted into the cylindrical body 1. The press-fit bodies 11 are all integrally molded from synthetic resin.

The former cylindrical main body 1 is, as shown in the figure,
The whole body has a square cross section, and has a square insertion hole 2 into which the press-fitting body 11 is inserted, and a flange portion 3 of a similar shape on the opening edge of the insertion hole 2. On the other hand, four slits 4 that allow expansion are formed at each corner of the wall, and engaging claws 5 are integrally provided on the inner surface of the wall divided by the slits 4. It is becoming.

On the other hand, the latter press-fit body 11 has a circular cross-section like the conventional one, and is composed of an enlarged head 12 and a shaft part 13 vertically disposed on the lower surface of the head, but as shown in FIG. 2A in particular, Opposing portions of the shaft portion 13 close to the enlarged head 12 are chamfered in parallel, and the chamfer 1
4, a pair of elastic blades 15, 15 extending linearly in parallel in opposite directions are integrally formed, and a threaded surface 16 is formed on the outer periphery of the shaft portion 13 below each elastic blade 15. It is configured to do this.

In addition, arcuate guide surfaces 15a are formed on the lower edges of the free end sides of the pair of elastic blades 15, respectively, to facilitate insertion into the insertion hole 2 of the cylindrical body 1 and its deflection.

Therefore, when the cylindrical main body 1 and the press-fit body 11 having such a configuration are used to overlap and fix the two panels P1 and P2, the locking hole H1 bored in one panel P1, The cylindrical body 1 is inserted through the flange portion 3.
After fitting, the insertion hole 2 of the cylindrical body 1 and the through hole H2 of the other panel P2 are aligned, and the press-fit body 11 is inserted into the square insertion hole 2 of the cylindrical body 1. Then, when the engaging claw 5 is engaged with the threaded surface 16 of the shaft portion 13 of the press-fit body 11, and at the same time, each dividing wall portion of the cylindrical body 1 is expanded outward through the slit 4,
As shown in FIG. 3, the two panels P1 and P2 are securely superimposed and fixed.

However, in this embodiment, as described above, since the pair of elastic wings 15, 15 are formed on the shaft portion 13, the shaft portion 13 of the press-fit body 11 is inserted into the insertion hole 2 of the cylindrical body 1. When inserted inside, arc guide surface 1
5a, each elastic blade 15 bends inward due to its own elasticity and is easily inserted into the insertion hole 2 of the cylindrical body 1. However, when it is completely inserted into the insertion hole 2, As shown in FIG. 4A or B, each elastic blade 15 returns to its original parallel straight line state due to its own elasticity, and the cylindrical body 1 defining the sides of the square insertion hole 2 is closed. It comes into pressure contact with the inner surface of the wall and prevents the press-fit body 11 from rotating due to the action of the threaded surface 16.

Therefore, even if unexpected vibrations or the like are applied to the overlapped and fixed parts of the panels P1 and P2, it is completely possible to prevent the press-fit body 11 from naturally rotating in the removal direction due to the action of the threaded surface 16, so that the panels can be fixed as usual. P1, P
There is no need to worry about the fixing state of 2 becoming loose.

Also in this embodiment, if it becomes necessary to release the overlapping fixation of the panels P1 and P2, insert a screwdriver or the like into the cross groove 17 formed in the enlarged head 12 of the press-fit body 11. The tool is inserted to rotate the press-fit body 11 in a predetermined direction. When the press-fit body 11 is forcibly rotated, each elastic blade 15 is bent inward in an arc shape, as shown in FIG. 5, and the press-fit body 11 is allowed to rotate.

Therefore, if the press-fit body 11 is subsequently rotated continuously, the press-fit body 11 can be pulled out from the cylindrical body 1, so that the fixed state of the panels P1 and P2 is easily released, and the pair of elastic The presence of the blades 15 does not pose any problem in releasing the fixation of the panels P1 and P2.

``Effect of the invention'' As described above, the present invention makes the insertion hole of the cylindrical body square, and at the same time has a pair of elastic vanes extending linearly in opposite directions at appropriate positions on the outer periphery of the shaft of the press-fit body. Since the press-fitting body is formed so that the pair of elastic wings are brought into pressure contact with the inner surface of the wall of the cylindrical body defining the sides of the rectangular insertion hole, the shaft portion of the press-fitting body is When completely inserted into the insertion hole, the square elastic blade returns to its original straight shape due to its own elasticity, and presses against the inner wall of the cylindrical body that defines the sides of the square insertion hole. As a result, the press-fit body can be prevented from rotating in the removal direction due to the action of the threaded surface, so even if vibration etc. are applied to the overlapped and fixed part of the panel, the press-fit object will not rotate in the removal direction due to the action of the thread surface. Absolutely not.

Therefore, with the clip of the present invention, there is no need to worry about loosening of the fixed state of the panel due to natural rotation of the press-fitting body caused by vibration or the like.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing a polymerization clip according to an embodiment of the present invention, FIG. 2A is a sectional view taken along line A-A of the press-fit body shown in FIG. 1, and FIG. −
Figure 3 is a sectional view taken along line B, Figure 3 is a sectional view of the main part showing the state in which two panels are overlapped and fixed using clips, Figure 4 is
Figures A and B are cross-sectional views of main parts showing the state in which a pair of elastic blades are inserted into the rectangular insertion hole of the cylindrical body, and Figure 5 shows the deflection state of the elastic blades when the press-fit body is pulled out from the cylindrical body. FIG. DESCRIPTION OF SYMBOLS 1... Cylindrical main body, 2... Insertion hole, 4... Slit, 5... Engaging claw, 11... Press-fitting body, 12... Enlarged head, 13... Shaft part, 15... Elastic vane , 16
... Threaded surface, P1, P2 ... Panel, H1 ... Locking hole, H2 ... Through hole.

Claims (1)

[Scope of utility model registration request] It consists of a cylindrical body that is fitted into a locking hole in a panel, and a press-fit body that is inserted into the cylindrical body. A slit is formed in the part to allow expansion, and an engaging claw is integrally provided on the inner surface of the wall divided by the slit, and the press-fitting body has a shaft part hanging down on the lower surface of the enlarged head. In the polymerization clip having a threaded surface formed on the outer periphery of the shaft, the insertion hole of the cylindrical body is square-shaped, while linearly extending in opposite directions at appropriate positions on the outer periphery of the press-fit body. A pair of elastic wings are formed, and the pair of elastic wings are configured to press against the inner surface of the wall of the cylindrical body defining the side of the rectangular insertion hole. Clip for use.