JPH11101209A - Plate fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a plate fastener to be utilized for plural mounting hole diameters, and to obtain a specified mounting force. SOLUTION: With the plate fastener, an inserting leg part 11 on one side face of which plural engaging projections 12 are provide, is installed to be projected from a disc-like head part 1. Then, an engaging piece 31, in which plural engaging projections 33 are provided on the opposite side of a face facing the inserting leg part 11, is installed continuously to the tip of the inserting leg part 11 through a hinge part 21. Further, an elastic piece 41 for energizing the engaging piece 31 in the direction away from the inserting leg part 11 is installed continuously to the face of the inserting leg part 11, facing the engaging piece 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate fastener for attaching and fixing a mounting plate to a mounting plate.

[0002]

2. Description of the Related Art The above-mentioned conventional plate fastener includes a head,
An insertion leg protruding from the head, and a distal end of the insertion leg parallel to the head, extending from the insertion leg in a direction opposite to each other via a hinge, and facing the insertion leg. The two engaging pieces having an engaging projection on the surface opposite to the surface to be formed are integrally formed of synthetic resin, and the insertion leg and the two engaging pieces have an anchor shape.

[0003] When the mounting plate is fixed to the mounting plate using the plate fastener, the mounting hole of the mounting plate and the insertion hole of the mounting plate are overlapped so that their centers coincide with each other. When the distal end side of the insertion leg is press-fitted into the mounting hole from the insertion hole side, the two engaging pieces are pushed by the periphery of the mounting hole, and are rotated in a direction approaching each other due to the elasticity of the hinge portion. Can also be inserted into the mounting hole, so that the insertion leg and the two engaging pieces can be inserted into the mounting hole. When the head comes into contact with the mounting plate and the insertion leg portion and the two engagement pieces cannot be further inserted into both holes, the two engagement pieces rotate in a direction away from each other due to the elasticity of the hinge portion. Since the engagement projections corresponding to the total thickness of the two plate members engage with the plate member to be mounted, the mounting plate member can be attached to and fixed to the plate member to be mounted.

[0004]

The conventional plate fasteners are:
Since the two engaging pieces are provided in the form of anchors on both sides of the insertion leg via the hinges, the engaging pieces inserted into the mounting holes are urged to be separated from each other by the elasticity of the hinges. Then, the corresponding engaging projections engage with the attached plate material. Therefore, as the size of the mounting hole diameter increases, the engaging projections are obliquely engaged with the plate material to be mounted. Therefore, the mounting force differs depending on the size of the mounting hole diameter, and the mounting increases as the mounting hole diameter increases. The force is reduced. In addition, since the engaging force varies depending on the size of the mounting hole diameter, a plate material fastener having a configuration corresponding to the size of the mounting hole diameter must be used to obtain a predetermined mounting force. There was a disadvantage that it could not be used.

The present invention has been made in order to solve the above-mentioned inconvenience, and provides a plate fastener which can be used for a plurality of mounting hole diameters and can obtain a predetermined mounting force. Is what you do.

[0006]

According to the present invention, there is provided a plate fastener comprising: a head; an insertion leg protruding from the head and having one or more engaging projections on one side; A hinge portion connected to the tip of the leg portion, and one or more engaging protrusions provided on the surface opposite to the surface facing the insertion leg portion, the hinge portion being connected to the insertion leg portion via the hinge portion. And an engagement piece. It is preferable that an elastic piece is provided between the insertion leg and the engagement piece to urge the engagement piece away from the insertion leg.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a plate fastener according to a first embodiment of the present invention, FIG. 2 is a plan view of the plate fastener according to the first embodiment of the present invention, and FIG. 3 is a first embodiment of the present invention. FIG. 4 is a bottom view of the plate fastener, and FIG.
FIG. 5 is a left side view of the plate member fastener according to the first embodiment of the present invention, and FIG. 6 is a rear view of the plate member fastener according to the first embodiment of the present invention. , FIG.
FIG. 5 is a sectional view taken along line XX in FIG. 4.

In FIGS. 1 to 7, A denotes a plate fastener, and the head 1, the insertion leg 11, the hinge 21, the engagement piece 31, and the elastic piece 41 are integrally formed of synthetic resin. Have been. The above-mentioned head 1 has a flat disk shape, is spherically curved, and is provided with two reinforcing ribs 2 which are orthogonal to a cross at the center of the inside as shown in FIGS. 1, 3 and 7. ing.
Further, as shown in FIG. 3 and FIG.
The head 1 is suspended from the center of the inside of the head 1
A plurality of engaging projections 12 are provided on the side surface far from the center in parallel with the head 1 from the distal end side to the head 1 side with a spacing of a plate thickness of a plate material A to be described later.

As shown in FIG. 1, the hinge portion 21 is connected to the distal end of the insertion leg 11 in a U-shape or a V-shape. It is closer to the center. Next, FIG.
As shown in FIG. 3, an abutment projection 32 is provided at the upper end of the surface facing the insertion leg 11 at the other end of the hinge portion 21 so as to abut the insertion leg 11. A plurality of engaging protrusions 33 are provided on the surface opposite to the surface to be attached in parallel from the hinge portion 21 side to the head 1 side with an interval of the thickness of the attached plate material A.

The elastic piece 41 is, as shown in FIG.
The engaging piece 31 is provided below the surface of the insertion leg 11 facing the locking piece 31 so as to be inclined away from the insertion leg 11 as it approaches the head 1.
Are biased so as to be separated from each other.

FIGS. 8, 9 and 10 are explanatory views of examples of use of the plate fastener shown in FIGS. 8 to 10
In the figure, B indicates a plate to be mounted, for example, a circular mounting hole b is provided. C denotes a mounting plate member, and an insertion hole c having a larger diameter than the mounting hole b is provided.

Next, the mounting of the plate will be described. First, as shown in FIG. 8, in a state where the mounting hole b of the mounting plate B and the insertion hole c of the mounting plate C are overlapped with their centers aligned with each other, the insertion leg 11 of the plate fastener A and the engagement When the tip end of the piece 31 is pressed into the mounting hole b from the insertion hole c side, the engaging protrusions 12 and 33 are pushed by the periphery of the mounting hole b, and the elasticity of the hinge part 21 causes the engaging piece 31 to be inserted into the insertion leg 11. It rotates in the approaching direction, and the engaging projections 33 are also sequentially attached from the lower side to the upper side.
Since it enters inside, the insertion leg 11 and the engagement piece 31 can be inserted into the mounting hole b.

At this time, the elastic piece 41 is pushed by the engaging piece 31 and is bent so as to approach the insertion leg 11 as shown in FIG. When the head 1 comes into contact with the mounting plate C and the insertion leg 11 and the engagement piece 31 cannot be further inserted into the holes b and c, the engagement piece 31 becomes the hinge part 21 and the elastic piece 4.
Due to the resilience of the first and second plate members B and C, the engagement protrusions 12 and 3 rotate in a direction away from the insertion leg 11.
Since 3 is engaged with the plate B to be mounted, the mounting plate C can be attached to the plate B to be mounted and fixed.

As described above, according to the first embodiment of the present invention, the engagement piece 31 rotates in the direction away from the insertion leg 11 with the elasticity of the hinge 21 based on the insertion leg 11. As a result, the engagement protrusions 12 and 33 engage with the plate B to be mounted, so that the engagement protrusions 12 and 33 can be engaged with the plate B even if the diameter of the mounting hole b is different. Since the insertion leg portion 11 is used as a reference, the engaging protrusion 12 is securely engaged with the plate B to be mounted in a state orthogonal to the mounting plate B, and the engaging protrusion 33 is also obliquely engaged with the plate B to be mounted. Thus, a predetermined mounting force can be reliably obtained.

Further, since the elastic piece 41 is provided and the engaging piece 31 is urged in the direction away from the insertion leg 11, the engaging projection 33 also reliably engages with the plate B to be attached. The mounting force can be further increased. Further, since the plurality of engaging projections 12 and 33 are provided, even if the total thickness of the two plate materials B and C is different, the plate material fastener A of the first embodiment is used.
Can be used. The insertion leg 11 is provided at a position deviated from the center of the head 1, and the center of rotation is
Since the engagement piece 31 is provided via the hinge portion 21 closer to the center of the head 1 than the head 1, the head is attached to the mounting hole b even though the number of the engagement pieces 31 is one. 1 can be made to substantially coincide with the center of the mounting hole b.

FIG. 11 is a sectional view showing a state in which the mounting plate is fastened to the plate to be mounted by the plate fastener according to the second embodiment of the present invention, and the same reference numerals as those in FIGS. And the description is omitted. The plate fastener A of the second embodiment is different from the plate fastener A of the first embodiment in that the engagement protrusions 12 and 33 are provided one by one. When the engagement projections 12 and 33 are provided one by one as described above, the engagement projections 12 and 33 can be used only when the total thickness of both the plate materials B and C is constant. Other effects can be obtained in the same manner as in the first embodiment, except for the effect that the present invention can be used even when is different.

FIG. 12 is a bottom view of a plate fastener according to a third embodiment of the present invention, and FIG. 13 is a perspective view of the plate fastener according to the third embodiment of the present invention in an upside down state. The same or corresponding parts as those in FIGS. 1 to 11 are denoted by the same reference numerals, and description thereof is omitted. The plate fastener A of the third embodiment
Is different from the plate material fastener A of the first embodiment in that the insertion leg 11 vertically suspended from the center inside the head 1 is formed in a triangular prism shape, and that the other The point is that the hinge portion 21, the engagement piece 31, and the elastic piece 41 are provided corresponding to the side surface.

When two sets of the hinge portion 21, the engagement piece 31, and the elastic piece 41 are provided as described above, the same effects as those of the first embodiment can be obtained.
Since two sets of 1 and the elastic piece 41 are provided, the mounting force can be further increased.

In each of the above embodiments, the elastic piece 41
Is provided on the insertion leg 11, but the same effect can be obtained by providing the elastic piece 41 on the engaging piece 31. In each embodiment, the elastic piece 41 is provided.
1 is not necessary. Further, in the third embodiment, as in the second embodiment, a mode in which the engagement protrusions 12 and 33 are provided one by one can be adopted. Although the mounting plate C has been described as a simple plate, it goes without saying that the mounting plate C may be a plate-like material such as a sound deadening material or a carpet.

[0020]

As described above, according to the present invention, the engagement leg is rotated in the direction away from the insertion leg by the elasticity of the hinge with the insertion leg as a reference, and the insertion leg and the engaging member are engaged. Since the engagement projections provided on the mating piece engage with the plate to be attached, each engagement projection can be engaged with the plate to be attached even if the diameter of the mounting hole is different. And since the insertion leg is the reference,
Since the engaging projections of the insertion leg portions are securely engaged with the plate to be mounted, a predetermined mounting force can be obtained, and the engaging projections of the engaging pieces also obliquely engage with the plate to be mounted. Power can be obtained reliably.

Furthermore, since the elastic piece is provided and the engaging piece is urged in the direction away from the insertion leg, the engaging projection of the engaging piece is securely engaged with the plate to be mounted. The power can be further increased. Further, since a plurality of engaging projections are provided, even when the total thickness of the attached plate material and the attachment plate material is different, the plate material fastener can be used.

[Brief description of the drawings]

FIG. 1 is a front view of a plate fastener according to a first embodiment of the present invention.

FIG. 2 is a plan view of the plate fastener according to the first embodiment of the present invention.

FIG. 3 is a bottom view of the plate fastener according to the first embodiment of the present invention.

FIG. 4 is a right side view of the plate member fastener according to the first embodiment of the present invention.

FIG. 5 is a left side view of the plate member fastener according to the first embodiment of the present invention.

FIG. 6 is a rear view of the plate fastener according to the first embodiment of the present invention.

FIG. 7 is a sectional view taken along line XX of FIG. 4;

FIG. 8 is an explanatory diagram of an example of use of the plate fastener shown in FIGS. 1 to 7;

FIG. 9 is an explanatory diagram of an example of use of the plate fastener shown in FIGS. 1 to 7;

FIG. 10 is an explanatory diagram of an example of use of the plate fastener shown in FIGS. 1 to 7;

FIG. 11 is a cross-sectional view of a state in which a mounting plate is fastened to a mounted plate by a plate fastener according to a second embodiment of the present invention.

FIG. 12 is a bottom view of a plate fastener according to a third embodiment of the present invention.

FIG. 13 is a perspective view showing a state where a plate fastener according to a third embodiment of the present invention is turned upside down.

[Explanation of symbols]

 Reference Signs List A Plate material fastener 1 Head 2 Reinforcement rib 11 Insertion leg 12 Engagement projection 21 Hinge part 31 Engagement piece 32 Abutment projection 33 Engagement projection 41 Elastic piece B Plate to be mounted b Mounting hole C Mounting plate c Insert hole

Claims (2)

[Claims] 1. A head, an insertion leg protruding from the head, and having one or more engaging projections on one side surface, a hinge connected to a tip of the insertion leg, A plate fastener comprising: an engagement piece provided with one or more engagement protrusions on a surface opposite to a surface facing the insertion leg portion, the engagement piece being connected to the insertion leg portion via the hinge portion. 2. The plate fastener according to claim 1, wherein between the insertion leg and the engagement piece, an elastic member is urged to separate the engagement piece from the insertion leg. A plate fastener provided with a piece.