JPS6224014A - Clamp for plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention is applicable to fixing one plate to another plate, for example, fixing a decorative plate for interior decoration of an automobile to the inner wall surface of the body. The present invention relates to a plate fastener made of thermoplastic synthetic resin, particularly polyethylene, which is effective in cases where the plate is worn.

[Prior Art] Conventionally, a device is made up of two male and female members, one member is attached to one plate to which it is fastened, and the other member is attached to the other plate to which it is fastened, and both members are fitted together. Synthetic resin fasteners are widely known, which are used to fasten boards together by bonding them to boards.

The performance of this conventional fastener is greatly affected by temperature, and there are some structural deficiencies. In other words, the conventional female-shaped member is provided on the outer circumferential surface of the body by expanding the diameter of the l-claw, and when fastened to a plate, the outer diameter of the body is reduced by forcefully pushing it into a hole drilled in the plate. However, although this hook requires a large attachment force, the engagement force is small, and it also causes water leakage, for example, when the plate to which it is attached is If it is necessary to remove the male member that has been forcibly pulled out,
There were inconveniences such as the female member coming off from the hole in the board and not being able to release the connection between the members, or the retaining claw on the edge of the hole being damaged and not being able to be refastened. .

[Problems to be Solved by the Invention] The present invention solves the effects of temperature in view of the effects of temperature and structural problems, such as the poor attachment of members to the plate and the weak engagement force. It is easy to release and attach easily to the hole in the plate with a small insertion force, and it has excellent workability, and after installation, it exerts a strong locking force on the hole. Stable fastening ensures the condition, and at the same time, when removing the board, only the mutual connection between the members is released without damaging it, and the fastening can be removed, and reuse is possible. That's what I did.

[Means for Solving the Problems] That is, the present invention is a fastener consisting of two male and female members that are individually engaged with two plates to be fastened, wherein the male member is attached to one of the plates. The female member is inserted into the hole formed in the other plate, and the female member is inserted into the hole formed in the other plate. The male member includes a body having a hollow interior and an open end, a fine insertion restriction flange provided on the outer peripheral surface of the opening of the body, and a locking portion provided inside the body. In a fastener that fastens plates together by inserting the shaft into the body of the female member and removably engaging the engaging part with the locking part, both the male and female members are made of polyethylene. In addition to individually molding, an elastic locking piece with flexibility is derived from the outer peripheral surface of the body of the female member, and its locking free end protrudes toward the lower surface of the restriction flange. It is an object of the present invention to provide a fastener for a plate, the proximal end of which is provided with a fitting step that fits into the hole of the plate. According to the fastener of the present invention, the polyethylene material does not change much in hardness due to temperature changes under usage conditions and has the necessary elasticity, and the elastic locking piece provided on the body of the female member has flexibility as described above. Because of this, when it is attached to the hole in the plate, the elasticity of the material acts and when you push it in, only the locking piece bends and passes through the hole, making it impossible to force the body part like in the past. The elastic locking piece can be installed and locked easily and smoothly without requiring any force to reduce the diameter of the plate, and since this elastic locking piece is provided with the free end facing the lower surface of the regulation flange, it can be attached to the opposite side of the plate. Since it restores itself and engages in the state in which it is in contact with the plate, an extremely strong engagement state 2) can be obtained.

Furthermore, when the female member is attached to the fastener of the present invention, the fitting stepped portion is fitted into the hole of the plate to determine the position of the body in the hole, thereby stabilizing the locked state of the engaging W piece. can be converted into

In particular, the presence of this fitting step absorbs changes in the locking force against the plate due to the number and position of the elastic locking pieces, and is effective in creating a constant locking state at all times.

[Examples] Examples illustrating the fastener of the present invention will be described below.

Figure 1 is a front view of the separated state with the right hand sectioned at the center, Figure 2 is a side view of the female member, and Figure 3 is a bottom view of the female member.
Fig. 4 is a central longitudinal sectional front view of the state in use. In the drawing, 1 indicates a male member, 2 indicates a female member, 3 indicates an interior wall of an automobile, and 4 indicates an ornament to be worn to cover the interior wall. Show the board.

The male member 1 has a head 6 for locking into a keyhole-shaped hole 5 formed in the decorative plate 4, and a shaft 8 having an engaging portion 7 at the shaft end that is vertically disposed from the center of the lower surface of the head. The other female member 2 is inserted into a hole 9 provided in the inner wall 3 and has a body portion 1 with a locking W portion 10 for fixing the shaft portion 8 of the male member therein! and ll1
a regulating flange 12 extending from the outer circumferential surface of one opening of the fourth part and regulating the amount of insertion of the body into the hole 9; and an elastic locking piece derived from the outer circumferential surface of the body so as to face the regulating flange. 13.

The male member 1 in this embodiment has a head 6 with a small flange 6a and a large flange 6b facing each other with a vertical interval, and the two flange are connected at a neck 6C to form the above-mentioned decorative plate 4. It is designed to be fitted into a keyhole-shaped hole 5.

That is, first, the small flange 6a of the head 6 is passed through the large diameter hole of a keyhole-shaped hole formed by connecting two large and small parts, and the large diameter flange 6b is brought into contact with the surface of the plate. Next, slide this head into the small diameter hole and move the small collar 6a, which was the turning part in the large diameter hole, to the opposite side of the plate (
The decorative plate 4 is attached by making contact with the other large flange 6b (corresponding to the upper surface in FIG. 4) and sandwiching the decorative plate 4 from both sides.

The head 6 with these two tsuba has a cloth surface on the E plaque.
This is advantageous in that it can be attached by working on the back side when the hole is exposed only from the back side of the cover covered with a cover such as a plastic sheet.The shaft part 8 attached from the bottom surface of this head 6 will be described later. The engaging portion 7 provided at the end of the shaft has a diameter that can be inserted into the hollow interior of the female member 2. The engaging portion 7 is formed into a spherical shape through a constricted diameter portion.

On the other hand, the female member 2 has a body 11 formed in a bag shape, and has an elastic 1L piece 13 extending obliquely from the middle part of the outer peripheral surface toward the lower surface of the regulating flange 12 formed in an umbrella shape. is derived from.

Here, two pieces of this elastic force are derived in a dorsal manner, and each of them has a gap 14 between it and the outer peripheral surface of the body 11 that can absorb the deflection, and has a long arm protruding diagonally. be. The engagement free end is spaced apart from the regulating flange 12 so that the interior 3 can be received therein.

Reference numeral 15 denotes a fitting stepped portion provided so as to partially oppose the engagement free end of the elastic engagement piece 13 and to extend around the body portion 11 along the base end portion of the regulating flange 12.

This fitting stepped portion has a size that approximately matches the diameter of the hole 9 bored in the inner wall 3, so that it can be fitted into the hole 9.

By the way, the locking part 10 provided inside the body is provided in a spherical shape with a reduced diameter part 16 provided in the hollow inner wall as a boundary, and the male member enters while expanding the reduced diameter part. The engaging portion 7 is adapted to be received.

The fastener of the present invention is constructed as described above, and both the male and female members are individually molded from synthetic resin, particularly polyethylene, having the required elasticity and rigidity.

As mentioned above, the fastener consisting of these two members includes the male member 1
is attached to the hole provided in one plate such as the decorative plate 4, and the female member is attached to the other plate individually, so that when fastening the plates together, the shaft portion 8 of the male member faces the opening of the female member. The head of the male member is struck from the surface side of one plate such as a decorative plate, and the shaft portion 8 is plunged into the hollow portion, thereby joining both members and fastening the plate.

[Effects of the Invention] As described above, in the present invention, the male and female members are individually molded integrally from thermoplastic synthetic resin, especially polyethylene, so that the hardness of each member changes due to changes in body temperature. It is not affected significantly and always maintains the necessary elasticity and softness, and as a result, there is a large difference in stability when attached to each plate and when connecting members to each other.As a result, it is suitable as a fastener, especially under natural conditions such as in automobiles. It is extremely effective as a fastener used in

Furthermore, according to the present invention, the male and female members are attached to each of the two plates to be fastened, and the mating members are fitted together so that they can be fastened in a tangential manner. The female member is fastened to the plate by the elastic 1F piece, so when it is installed, the elastic 1E piece bends so that it can easily pass through the hole, making it possible to reduce the diameter of the conventional body. It is much easier to work with compared to the one that is attached, and the elastic IE piece that passes through the hole by pushing expands with restoring force and brings the engagement free end into contact with the opposite side of the plate, so it can be pulled out and unbalanced. This will result in being hit.

Therefore, when it is necessary to peel off a fastened board such as a decorative board, the female member will not be pulled out from the board due to the parts being uncoupled, and reliable fastening can be achieved. Stable use is possible without the problem of the locking claws provided on the circumferential surface of the body being destroyed and becoming unusable as a result of removal from the plate as described above in the conventional art.

The fastener of the present invention has a structure in which when the body of the female member is inserted into the hole and locked, the fitting stepped portion is fitted into the hole to prevent movement in the surface direction of the plate. As a result, the engagement position of the elastic member 11 always comes into contact with the surface of the plate, and a more stable engagement state can be obtained.

Further, in the fastener of the present invention, the elastic IE piece provided on the body of the female member independently contacts and engages the plate in the engaged state, and the shank of the male member that fits into the body. Since the structure is not directly related to the coupling relationship with the plate, when the male member is pulled out in the fastened state, the VA diameter portion expands without affecting the engagement relationship with the female member plate.
Furthermore, by expanding the trunk, the connection can be easily released while leaving the female member on the plate. Therefore, it can be very effectively used as a fastener for fastening panels for interior decoration of automatic tunnels.

Incidentally, in the embodiment, a case has been described in which two pieces of elasticity are derived, but it goes without saying that the number is not limited to this number. Of course, even if the number of engagement pieces increases, the female member will always remain in a fixed position relative to the hole due to the fitting step, so the pieces will be attached to the edge of the hole or this edge as designed. This means that the outlet end of the engagement port can be brought into abutting engagement with the portion extending from the surface of the plate to the surface of the plate.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a front view of the separated state with the half sectioned at the center, Fig. 2 is a side view of the female member, and Fig. 3 is a side view of the female member. The bottom view and FIG. 4 are central vertical sectional front views of the device in use. 1...Male member, 2...Female member, 3, 4...Plate, 5
゜9...hole, 6...head, 7...engaging part, 8...
...Shaft part, 10...Locking part, 11...Body part, 12.
...Restriction flange, 13...Elasticity + h piece, 15...
・At the time of mating step part Applicant Co., Ltd.
2 Fuko Figure 4

Claims (1)

[Claims] A male member having a head that locks into a hole formed in one plate, a shaft extending from the lower surface of the head and having an engaging part at the shaft end, and a hole formed in the other plate. A body that is inserted into the body and has a hollow interior with at least one end open; a regulating flange provided on the outer circumferential surface of the body on the opening side for regulating the amount of insertion; and a female member having a locking part provided therein, the shaft part of the male member is inserted into the body part of the female member, and the engaging part at the shaft end is removably engaged with the locking part in the hollow interior. In this fastener, both the male and female members are individually molded from polyethylene, and the female member is provided with a female member on the outer circumferential surface of the body of the female member in cooperation with a regulating flange. A plate fastener, characterized in that it is provided with an engaging portion for engaging the member with the other plate.