JPH056407Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to a plastic connector that holds two plates facing each other with a gap between them, and in particular, a vibration absorbing device that absorbs the vibration between the two plates. It is equipped with functions.

<Prior art> Regarding this type of connector, Utility Application No. 61-155417
There is a number.

Referring to FIG. 10, the content will be explained. The present connector 1 consists of a pair of upper and lower support parts that have anchor-shaped locking parts 2a and 2b facing away from each other to plate materials A and B. 3a, 3b and both support parts 3a, 3
A pair of left and right flexible connecting portions 4 having spring properties that are bent outward in a dogleg shape and connecting the portions b facing each other.
a, 4b, and the supporting parts 3a, 3
A rib 5 having a rectangular cross section and extending halfway toward the opposing surface of the other support portion 3a is integrally provided from one opposing surface of the support portion b.

<Problems to be solved by the invention> The rib 5 of the connector 1 has both flexible connectors 4a,
When 4b buckles in a pantograph shape, it hits the lower surface of the upper support part 3a, so that both support parts 3
Although the opposing distance between the supporting portions 3a and 3b was prevented from decreasing more than necessary, on the contrary, both the flexible connecting portions 4a and 4b extend linearly, and the opposing distance between the supporting portions 3a and 3b increases. Sometimes it doesn't work at all.

However, if both flexible connecting parts 4a and 4b are allowed to elongate more than necessary, there is a problem that both flexible connecting parts 4a and 4b may be plastically deformed and their springiness may be impaired. .

<Means for Solving the Problems> Therefore, the present invention provides a pair of support parts having locking parts for plate materials facing away from each other, and a pair having a spring property that connects both support parts facing each other. A plastic assembly integrally equipped with a flexible connecting part and a regulating means located within the opposing interval between the supporting parts and regulating the amount of displacement of the facing interval between the supporting parts due to the spring properties of both the flexible connecting parts. In the connecting device made of and a second regulating section that regulates.

<Operation> Therefore, according to the present invention, both the support parts 13a, 1
The first regulating portions 19 and 20 can prevent the opposing distance between the support portions 3b from increasing more than necessary, and conversely, the second regulating portion 19' can prevent the opposing distance between the supporting portions from reducing more than necessary.

<Example> The present invention will be described below based on an example shown in the drawings.

In the figure, 11 indicates a connecting tool, and this connecting tool 11
A pair of upper and lower support parts 13a and 13 have locking parts 12a and 12b for plate materials A and B facing each other.
b, and a pair of left and right flexible connecting portions 14 having spring properties that connect the support portions 13a and 13b facing each other.
a and 14b, and is integrally molded from plastic.

The upper and lower locking portions 12a, 12b have second to
As shown in Figure 4, an anchor type clip is used. Each locking portion 12a, 12b is connected to a support portion 13.
It consists of a support leg 15 that protrudes from approximately the center of parts a and 13b facing away from each other, and a pair of elastic pieces 16 and 16 that extend obliquely from both ends of this support leg 15 toward the support parts 13a and 13b. , both locking parts 12
a and 12b form vertically symmetrical shapes with respect to each other. still,
The shape of the locking portions 12a, 12b is not limited to the anchor type, but may be canoe-shaped, or the shapes of the upper and lower locking portions 12a, 12b may be different from each other.

The support parts 13a, 13b are made of a plate material having a narrow width in the front and back and long in the left and right directions, and at both left and right ends thereof, there is a pair of rectangular shapes bent in an L-shape in the same direction as the locking parts 12a, 12b and extending short. Contact portion 17,1
7, and semicircular protrusions 18, 18 that extend shortly facing each contact portion 17, and both support portions 13a,
13b are vertically symmetrical to each other.

The flexible connecting portions 14a, 14b have a generally outwardly bulging U-shape that is symmetrical with respect to each other, and both ends of the flexible connecting portions 14a, 14b form a pantograph in the middle of the length of the opposing surfaces of the supporting portions 13a, 13b. Each is connected.
Note that the bending direction of both flexible connecting portions 14a and 14b is as follows.
It may be directed inward, or it may be bent into a dogleg shape instead of a U shape.

On the other hand, within the opposing interval between the supporting parts 13a and 13b, a regulating means is provided for regulating the amount of displacement of the opposing interval between the supporting parts 13a and 13b due to the spring properties of the flexible connecting parts 14a and 14b. . This regulating means includes a first regulating section that regulates the maximum facing distance between the supporting sections 13a and 13b, and a second regulating section that regulates the minimum facing distance.

In FIG. 2, the first regulating portion extends from approximately the center of the height of the inner surface of the left flexible connecting portion 14a to halfway toward the inner surface of the other right flexible connecting portion 14b. an extended horizontal T-shaped protrusion 19;
The opposing piece 20 extends horizontally from the inner surface of the flexible connecting portion 14b on the right side toward the protruding piece 19, and its tip is spaced apart from the protruding piece by a predetermined distance (for example, 1 mm).

Further, the second regulating portion corresponds to a vertically long vertical piece 19' connected in a T-shape at the tip of the projecting piece 19,
The upper and lower ends of the vertical piece 19' are the upper and lower support parts 13a,
A predetermined interval (for example, 1 mm) is spaced from each opposing surface of 13b.

Next, using the connector 11 with the above configuration,
In order to connect the two plate materials A and B to each other, first, mounting holes Ha and Hb are opened in both the plate materials A and B to a size that allows the locking portions 12a and 12b to reduce in diameter and pass through.

Next, the locking portions 12a and 12b are inserted and locked into the mounting holes Ha and Hb of both the plates A and B, respectively.

That is, when each locking part 12a, 12b is inserted,
Both elastic pieces 16, 16 come into contact with the edges of the mounting holes Ha, Hb, and when pushed strongly, both elastic pieces 16, 1
6 are pushed by the hole edges and advance into the attachment holes Ha and Hb while being bent inwardly toward each other. When both the elastic pieces 16 pass through the attachment holes Ha and Hb, they expand outward due to their elastic force, and the step portions 16' and 16' at their tips are caught on the hole edges, and the supporting portions 13a and
By sandwiching the plates A and B from above and below between the outer surface of the plate 13b, it can be attached to the mounting holes Ha and Hb of both plates A and B with one touch (Fig. 1).

Also, at this time, the contact portions 17 at both ends of the support portions 13a and 13b abut against the plate materials A and B, respectively. This abutting portion 17 can be pressed by the plates A and B by setting the distance h in the height direction between the elastic piece 16 and the stepped portion 16' to be slightly shorter than the thickness t of the plates A and B. When the support parts 13a and 13b warp and bend, they elastically abut against the plates A and B due to their restoring force.
Therefore, the locking parts 12a and 12b are pulled in the removal direction, and the step part 16' of the elastic piece 16 is pulled out of each mounting hole.
By biting into the hole edges of Ha and Hb from the outside and increasing the engagement force, the contact portion 17 elastically abuts against the plate materials A and B, thereby increasing the tolerance to the thickness t of the plate materials A and B. You can make it bigger.

In this way, by attaching the respective locking parts 12a and 12b to both plate materials A and B, both plate materials A and B are
They are held vertically facing each other at a predetermined distance via a connector 11 (FIG. 1).

In addition, since the weight of the upper plate material A is added, both the flexible connecting parts 14a, 14b buckle slightly in a pantograph shape due to the weight, and the upper and lower supporting parts 13a, 1
The facing distance of 3b is slightly reduced.

Further, since both flexible connecting portions 14a and 14b have a laterally symmetrical structure, they generally bend evenly on the left and right sides, and hold the upper and lower plates A and B so that they are parallel to each other.

On the other hand, when the plate materials A and B are warped or tilted, both flexible connecting portions 14a and 14b are bent asymmetrically, so that they are not connected to the warped or tilted plate materials A and B. The stop portions 12a and 12b can be reliably attached.

Next, the influence of vibration will be explained.

For example, if it is assumed that a relative force that presses the upper plate material A toward the lower plate material B is applied due to external vibration, this force causes the upper support part 13 to
a is pushed downward, and both flexible connecting parts 14a, 14
b buckles in a pantograph shape, and due to its springiness, both flexible connecting portions 14a and 14b store an elastic restoring force that tends to expand (FIG. 5).

Next, whether the force pushing the upper plate material A is released,
When the elastic restoring force stored in both flexible connecting parts 14a and 14b becomes larger than the pushing force, both flexible connecting parts 1
4a, 14b expand linearly due to the stored elastic restoring force, and again both flexible connecting portions 14a, 14b store the elastic restoring force that tends to buckle (FIG. 6).

In this way, both the flexible connecting portions 14a and 14b repeatedly buckle and expand, thereby attenuating and absorbing vibrations, and the vibrations generated or acting on one plate material A, B are transferred to the other plate materials A, B. It acts in such a way that the signal is not transmitted.

On the other hand, if the opposing distance between the two plate materials A and B is compressed more than necessary, both the flexible connecting parts 14a and 14b buckle in a pantograph shape, but at this time, the T-shape protruding from one of the flexible connecting parts 14a protrusion 19
The upper and lower ends of the vertical pieces 19' abut against the vertically opposing surfaces of the plates A and B, respectively, thereby regulating the minimum spacing between the plates A and B (FIG. 5).

This can prevent the flexible connecting portions 14a, 14b from buckling and breaking or plastically deforming more than necessary. The minimum spacing between the two plates A and B can be freely set by determining the gap between the upper and lower ends of the vertical piece 19' and the plates A and B, and the gap can be widened or narrowed. By doing so, the minimum facing distance can be easily changed.

On the other hand, if the opposing distance between the plates A and B is separated more than necessary, the flexible connecting parts 14a and 14b will extend linearly.
Projecting pieces 19 projecting inward from each other from a and 14b
By abutting against each other and the facing piece 20, the maximum facing distance between the two plates A and B is regulated (FIG. 6).

This can prevent the flexible connecting portions 14a, 14b from elongating more than necessary and causing plastic deformation. The maximum facing distance between the plates A and B can be freely set by determining the gap between the outer surface of the vertical piece 19' of the projecting piece 19 and the tip of the facing piece 20. The maximum facing distance can be easily changed by widening or narrowing.

In addition, since the maximum facing distance between the plates A and B can be determined in advance, it is easy to set the clearance between them and other parts and members (not shown).
If this clearance is secured, plates A and B
Even when an unexpected force is applied to the plates, there is no risk that the plates A and B will come into contact with other parts or members.

Furthermore, by regulating the minimum and maximum spacing between the plates A and B, the width of vertical movement of the plates A and B is regulated, so vibrations can be converged more quickly than when they are not regulated.

On the other hand, when a tilt occurs between the two plates A and B during vibration, if the tilt is more than necessary, the upper and lower support parts 1
The protrusions 18 of 3a and 13b are bent into a ring shape and abut against the outer surface of one of the flexible connecting parts 14a,
This prevents both plates A and B from tilting to either the left or right side more than necessary (Fig. 7).

In addition, in this embodiment, both flexible connecting portions 14a,
Although the T-shaped projecting piece 19 and the opposing piece 20 with a single horizontal character are protruded inwardly from each inner surface of the upper and lower supporting parts 13a and 14b, the present invention is not limited to this. A T-shaped protruding piece and a vertically-shaped opposing piece may each protrude from the surface to face each other from the vertical direction.

On the other hand, FIG. 8 and subsequent figures show other embodiments of the regulating means of the present invention, and FIG. A cross-shaped projecting piece 21 extending upward halfway is provided. In this embodiment, the horizontal piece 21a of the projecting piece 21 becomes the first regulating part, and the vertical piece 21b
respectively function as second regulating parts. In addition, protrusion 21
may protrude from the upper support part 13a,
The flexible connecting portions 14a, 14b may protrude inwardly from the inner surface toward the other flexible connecting portions 14a, 14b.

FIG. 9 shows another embodiment, in which a projecting piece 22 extends vertically from the upper surface of the lower support part 13b to the lower surface of the upper support part 13a halfway up the height. Then, at a slight distance from both the left and right sides of this projecting piece 22, the flexible connecting parts 14a and 14b on both sides are connected.
A pair of left and right opposing pieces 23 protrude horizontally from the
23 is installed protrudingly. In this embodiment, the protruding piece 22 and both opposing pieces 23 function as the first regulating part, and the protruding piece 22
2 each function as a second regulating section. In addition, protrusion 2
2 may protrude from the upper support part 13a, or may protrude from one of both flexible connecting parts 14a, 14b, and connect the upper and lower support parts 13a, 13 with this in between.
A pair of upper and lower facing pieces 23 may protrude from b.

<Effects of the invention> As explained above, according to the invention, since the restriction means is provided with the first restriction part that specifically restricts the maximum facing distance between the two supporting parts, the two flexible connecting parts are not stretched more than necessary. This can prevent plastic deformation.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a cross-sectional view of both plates connected, Fig. 2 is a front view, Fig. 3 is a plan view, Fig. 4 is a side view, and Fig. 5 - FIG. 7 is a sectional view in various states, FIG. 8 is a sectional view showing the second embodiment, FIG. 9 is a sectional view showing another embodiment, and FIG. 10 is a sectional view showing a conventional example. In the figure, 11 is a connector, A and B are plate materials, and 12
a and 12b are locking parts, 13a and 13b are support parts,
14a and 14b are flexible connecting parts, 19 is a protruding piece, 1
Reference numeral 9' indicates a vertical piece thereof, and reference numeral 20 indicates an opposing piece.

Claims (1)

[Claims for Utility Model Registration] A pair of support parts having locking parts for the plate material facing each other, a pair of flexible connecting parts having spring properties that connect the support parts facing each other, and both In a plastic connecting device that is integrally equipped with a regulating means located within the opposing interval between the supporting parts and regulating the amount of displacement of the opposing interval between the two supporting parts due to the spring properties of both the flexible connecting parts, the above regulation is provided. The means includes a first regulating part that comes into contact with the flexible connecting part before reaching its extension limit to regulate a maximum facing distance between both supporting parts, and a second regulating part that restricts a minimum facing distance between both supporting parts. A plastic connecting tool for plate materials, characterized in that: