KR0132991B1 - Vibration insulating pad - Google Patents

Abstract

A first object is to provide a dustproof pad that can be attached manually by eliminating the need for press-fitting equipment. A second object is to provide a dustproof pad which can be easily attached by hand even when the difference between the hole diameter of the attachment hole and the outer diameter of the press-fitting portion is large or the deformation pad.

The 1st structure provided the longitudinal slit 5 cut | disconnected from the oblique direction with respect to the longitudinal through hole 1. As shown in FIG. The second configuration is radially circumferential from a slit line 6a cut out from the oblique direction with respect to the longitudinal through hole 1 and a portion where the slit line 6a crosses the longitudinal through hole 1. The wedge-shaped cutout part 6 which cut | disconnected the part enclosed by the extending radial direction line 6b is formed.

Description

Dust Pad

1 is a perspective view showing a dustproof pad of a first embodiment.

2 is a plan view showing a dustproof pad of a first embodiment.

3 is a side view showing the dust pad of the first embodiment.

4 is a diagram showing a torsional state in the up and down direction in the antivibration pad of the first embodiment.

5 is a perspective view showing a dustproof pad in a torsion state.

FIG. 6 is a perspective view showing the anti-vibration pad in a torsion state seen from the arrow C direction in FIG. 5; FIG.

7 is a view showing a state in which the torsional antivibration pad is attached to the attachment hole of the central member.

8 is a view showing a state of turning while screwing the dust-proof pad for twisting.

9 is a view showing a state of restoring the torsional antivibration pad to its original shape.

10 is a view showing an attachment state of the anti-vibration pad of the first embodiment.

11 is a plan view and an operation explanatory diagram when the longitudinal slits are formed in the radial direction.

Fig. 12 is a perspective view showing the antivibration pad of the second embodiment.

Fig. 13 is a plan view showing the dust pad of the second embodiment.

Fig. 14 is a side view showing the dust pad of the second embodiment.

FIG. 15 is a view showing a state in which the antivibration pads of the second embodiment are manually attached; FIG.

Fig. 16 is a diagram showing a setting example of the wedge-shaped cutout of the dustproof pad of the second embodiment.

Fig. 17 is a plan view showing a modified dustproof pad of a second embodiment.

18 is a view showing a state in which a conventional anti-vibration pad is attached to a central member.

19 is a view showing the attachment state of the conventional anti-vibration pad.

20 is a view for explaining that the conventional dust-proof pad cannot be attached manually.

* Explanation of symbols for main parts of the drawings

P1, P2: Dustproof pad 1: Longitudinal through hole

2: press-fitting part 2a: conical surface

3: main body 3a: cylindrical surface

4: fitting flaw 5: longitudinal slit

6: wedge-shaped cutout 6a: slit

6b: diameter direction line

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dustproof pad for use in a power unit supporting device of an automobile.

Background Art Conventionally, in the power unit support apparatus for automobiles, as the anti-vibration pad for elastically supporting the central member to the vehicle body, for example, those shown in FIGS. 18 and 19 are known.

The conventional anti-vibration pad is made of rubber and has a longitudinal through-hole formed in the central axis direction, a press-fitting portion having a conical surface is formed at an upper portion thereof, and a main body portion having a cylindrical surface is formed at a lower portion thereof. It has a structure in which the fitting flaw with respect to the attachment hole of the center member was formed in the connection part with a main body part.

However, in the conventional anti-vibration pad, for the following reasons, it cannot be attached manually to the attachment hole of the center member, and a pad press-fitting facility using an air cylinder or the like is required, which is disadvantageous in terms of process number and cost. It is.

(1) As shown in Fig. 20, the difference between the hole diameter A of the mounting hole and the outer diameter B of the press-fitting part is so large that it cannot be deformed as necessary to attach the press-fitting part by the hand-pushing force.

(2) When the spring constant of the anti-vibration pad is lowered to satisfy the acoustic performance, the shape must be enlarged to satisfy the durability. It cannot be transformed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first object is to provide a dustproof pad which can be attached manually by eliminating the need for press-fitting equipment.

A second object is to provide a dustproof pad which can be easily attached by hand even when the difference between the hole diameter of the attachment hole and the outer diameter of the press-fitting portion is large or the deformation pad.

Claims for Attaining the First Purpose In the anti-vibration pad of the present invention, longitudinal slits cut out from oblique directions with respect to the longitudinal through-holes were formed.

That is, the rubber is used as the material, and the longitudinal through-hole is formed in the central axis direction, the press-fitting portion having a conical surface is formed at the upper portion, the body portion having the cylindrical surface is formed at the lower surface thereof, and the connection portion between the press-fitting portion and the main body portion is formed. In the anti-vibration pad in which a fitting flaw was formed for the attachment hole, the longitudinal longitudinal slit cut out from the oblique direction with respect to the longitudinal through hole was formed.

In the antivibration pad of the present invention for achieving the second object, a slit line cut out from an oblique direction with respect to the longitudinal through hole and a radial line extending radially outward from a portion where the slit line crosses the longitudinal through hole. The wedge-shaped cutout which cut out the part enclosed by the edge was formed.

That is, a rubber-based material has a longitudinal through-hole formed in the central axis direction, a press-fitting portion having a conical surface is formed at the upper portion, a main-body portion having a cylindrical surface at the lower portion thereof, and a connection portion between the press-fitting portion and the main body portion. There is a dustproof pad having a fitting flaw for the attachment hole in the diaphragm, wherein the slit line cut out from the oblique direction with respect to the longitudinal through hole and the diameter extending radially circumferentially from a portion where the slit line crosses the longitudinal through hole. The wedge-shaped cutout which cut out the part enclosed by the direction line was formed.

The operation of the present invention will be described.

At the time of pad attachment to the attachment hole, first, the longitudinal slits are twisted in the vertical direction to the position where the longitudinal slits do not overlap each other, with the longitudinal slits cut out from the oblique direction with respect to the longitudinal through hole of the dustproof pad.

Subsequently, the longitudinal slit is twisted inward to a position where the longitudinal slit overlaps in the circumferential direction, and the upper surface of the press-fit portion is hung on the lower surface of the main body portion by releasing the hand. Thereby, the state which twisted in the up-down direction is maintained, and the fitting flaw formed in the connection part of a press-fit part and a main body part turns into a spiral flaw.

And when this twisted anti-vibration pad is set with the line unit value of the longitudinal slit with respect to an attachment hole, and it turns while matching an attachment hole and a helical fitting flaw, the anti-vibration pad of a torsion state by a screw insertion action will be made. Inserted into the attachment hole. The longitudinal slits are left.

Finally, by attaching the part caught in the longitudinal slit inward and outward to return the shape, the attachment of the antivibration pad is completed.

Another operation of the present invention will be described.

When the pad is attached to the attachment hole, instead of the longitudinal slit, the slip line cut out from the oblique direction with respect to the longitudinal through hole and the radial direction extending radially from the portion where the slit line crosses the longitudinal through hole are radially circumferentially. The only difference is that it is a wedge-shaped cutout cut out by the line.

In the case of the wedge-shaped cutout portion, the inner diameter of the wedge-shaped cutout portion is larger than that in the longitudinal slit, whereby the outer diameter can be made smaller when the torsional dustproof pad is used. Even when the difference between the negative outer diameter is large and the deformable pad can be easily attached to the antivibration pad.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described based on drawing.

Second Embodiment

First, the configuration will be described.

1 is a perspective view showing a dustproof pad of a first embodiment corresponding to the present invention, and FIG. 2 is a plan view showing a dustproof pad of a first embodiment.

3 is a side view showing the antivibration pad of the first embodiment.

The antivibration pad P1 of the first embodiment is made of rubber and has a longitudinal through hole 1 in the central axis direction, and a press-fitting portion 2 having a conical surface 2a on the upper portion thereof. While the main body portion having the cylindrical surface 3a is formed, a fitting flaw 4 for fitting to the mounting hole is formed in the connection portion between the press-fit portion 2 and the main body portion 3.

Then, the longitudinal slit 5 is formed by cutting away from the oblique direction with respect to the longitudinal through hole 1.

The operation is explained next.

4 to 10 illustrate the pad attaching action.

The attaching operation of the anti-vibration pad P1 to the attaching hole H of the central member supporting the engine and the transmission will be described in the order of steps.

(1) First, as shown in FIG. 4, twisted in the vertical direction with the longitudinal slit 5 cut out from the oblique direction with respect to the longitudinal through-hole 1 of the dustproof pad P1. All. This vertical twist amount is set to the position where the longitudinal slits 5 do not overlap with each other.

(2) Subsequently, twist the inner side to the position where the longitudinal slits 5 overlap in the circumferential direction, and hang the upper surface of the press-fit portion 2 against the lower surface of the main body portion 3 by releasing the hand.

Thereby, as shown in FIG. 5 and FIG. 6, the shape is maintained as the anti-vibration pad P1 'of the twisted state twisted in the up-down direction, and the press-fit part 2 and the main body part 3 are connected. The fitting flaw 4 formed in the part becomes a spiral flaw.

(3) Then, as shown in FIG. 7, the twist pads for vibration-proof dustproof pad P1 'are set with the line unit value of the longitudinal slit 5 with respect to the attachment hole H of the center member. As shown in FIG. 8, when the mounting hole H and the spiral fitting flaw 4 are turned while turning, the torsional vibration-proof pad P1 'is inserted into the mounting hole H by the screw insertion action. , And the set state is left, leaving the longitudinal slit 5.

(4) Finally, as shown in FIG. 9, the part which has been hung on the longitudinal slit 5 as a boundary is pushed inward and outward, and as shown in FIG. By returning the shape, attachment of the antivibration pad P1 'is completed.

The longitudinal slit 5 is cut out from the oblique direction with respect to the longitudinal through hole 1, which is for the following reason.

(1) If the longitudinal slit 5 does not enter at an angle, the press-fitting portion 2 with respect to the lower surface of the main body 3 may be twisted inward after twisting in the vertical direction with the longitudinal slit 5 as a boundary. It is not possible to hang the upper surface of the wire, and as shown in Figs. 5 and 6, the anti-vibration pad P1 'in the twisted state cannot be realized.

(2) When the longitudinal slit 5 does not enter at an angle, the slit as shown in FIG. 11 at the time of the final set of pushing out the portion caught on the longitudinal slit 5 inward and outward The ends of the two interfere with each other and cannot be pushed outward.

Next, the effect will be described.

In the antivibration pad P1 of the first embodiment, the longitudinal slit 5 cut out from the oblique direction with respect to the longitudinal through hole 1 is formed, which eliminates the need for press-fitting equipment and can be attached manually. The anti-vibration pad P1 can be provided.

Second Embodiment

First, the configuration will be described.

FIG. 12 is a perspective view showing the antivibration pad of the second embodiment, FIG. 13 is a plan view showing the antivibration pad of the second embodiment, and FIG. 14 is a side view showing the antivibration pad of the second embodiment.

The antivibration pad P2 of the second embodiment is made of rubber and has a longitudinal through hole 1 formed in the central axis direction, and a press-fitting portion 2 having a conical surface 2a formed thereon. The main body part 3 which has the cylindrical surface 3a is formed in the lower part, and the fitting flaw 4 with respect to an attachment hole is formed in the junction part of the press-fit part 2 and the main body part 3, and is formed.

And the radial direction which extends radially outer periphery from the part which the slit line 6a cut | disconnected from the oblique direction with respect to the said longitudinal through-hole 1, and the slit line 6a cross | intersects to the longitudinal through-hole 1 is carried out. The wedge-shaped cutout 6 which cut out the part enclosed by the line 6b (for example, the 45 degree range part) is formed.

Next, the operation will be described.

When the pad is attached to the mounting hole H, only the wedge-shaped ablation portion 6 is replaced by the longitudinal slit 5.

In other words, as shown in Fig. 15, the antivibration pad P2 'in the twisted state is set to the line unit value of the wedge-shaped cutout 6 with respect to the attachment hole H, and the attachment hole H and the spiral shape By turning while aligning the fitting flaws 4 in the grooves, the anti-vibration pad P2 'in the twisted state can be inserted into the attachment hole H by the screw insertion action.

In the case of this wedge-shaped cutout part 6, it can make it smaller than the outer diameter in the case of making torsional antivibration pad P2 'by taking the amount of torsion to the inside compared with the longitudinal slit 5 large. .

Here, when the difference between the hole of the attachment hole H, the diameter, and the outer diameter of the indentation part 2 is large, and the indentation part 2 is thick, as shown in (a) of FIG. 16, the wedge-shaped cutout part 6 By setting a large amount of ablation, it is possible to attach the antivibration pad P21 manually.

And when the difference between the hole diameter of the attachment hole H and the outer diameter of the insertion part 2 is small, and the press-fit part 2 is thin, as shown in FIG. 16 (b), the wedge cutting part 6 By setting the amount of cuts to be small, the antivibration pad P22 can be attached manually.

In addition, as shown in the seventeenth aspect, since even the deformed dustproof pad H23 can be made sufficiently small in the torsional state by setting the wedge-shaped cutout portion 6, the dustproof pad P23 is easily manually operated. Can be attached.

Next, the effect will be described.

In the anti-vibration pad P2 of the second embodiment, the slip line 6a cut out from the oblique direction with respect to the longitudinal through hole 1 and the radial line from the portion intersecting the longitudinal through hole 1 are radial directions. Since the wedge-shaped cutout part 6 which cut out the part enclosed by the radial direction line 6b extended to the outer periphery was formed, when the difference between the hole diameter of the attachment hole H and the outer diameter of the inlet part 2 is large, or deformation | transformation is carried out. Even the pad can provide a dustproof pad P2 that can be easily attached manually.

As mentioned above, although embodiment was described based on drawing, a specific structure is not limited to an Example, Even if there exists a change, addition, etc. in the range which does not deviate from the summary of this invention, it is included in this invention.

For example, in the second embodiment, as shown in the hatching portion of FIG. 14, the outer circumference of the press-fit portion 2 may be cut to reduce the outer diameter, or the outer circumference of the mouth 2 may be formed in an arc shape. The attachment workability may be further improved.

In the present invention, since the longitudinal slit cut out from the oblique direction with respect to the longitudinal through-hole is formed, the effect that the dustproof pad which can be attached manually by the need for press-fitting equipment is unnecessary is acquired. have.

In the present invention, a slit line cut out in an oblique direction to the longitudinal through hole and a portion enclosed by a radial line extending radially outward from a portion where the slit line intersects the longitudinal through hole are cut out. Since the wedge-shaped cutout is formed, when the difference between the hole diameter of the attachment hole and the outer diameter of the press-fitting portion is large or even the deformation pad can be provided, an anti-vibration pad can be easily provided by hand.

Claims (2)

Made of rubber, the longitudinal through-hole is formed in the center axis direction, the press-fitting portion having a conical surface is formed in the upper portion, the body portion having a cylindrical surface is formed in the lower portion, and the attachment hole is connected to the connection portion of the press-fitting portion and the main body portion. An anti-vibration pad having a fitting flaw for the anti-vibration, wherein the anti-vibration pad is formed with a direction slit cut out from an oblique direction with respect to the longitudinal through hole. Made of rubber, the longitudinal through-hole is formed in the central axis direction, the press-fitting portion having a conical surface is formed at the upper portion, the main body portion having the cylindrical surface is formed at the lower portion, and the attachment hole at the connection portion of the press-fitting portion and the main body portion. In the anti-vibration pad provided with the fitting flaw for the said contact, the slit line cut | disconnected from the oblique direction with respect to the said longitudinal through hole, and the direct directional line extended radially outward from the part which a slit line cross | intersects with a longitudinal through hole The anti-vibration pad, characterized in that a wedge-shaped cutout portion formed by cutting off the portion enclosed by the shell.