JP2000120786A - Exhaust pipe support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ascertain fixation and facilitate attachment in an exhaust pipe support device formed with a pair of attaching holes in line, for the insertion of a pair of support members extended from a vehicular body. SOLUTION: An exhaust pipe support device 1 is prepared by connecting an upper side attaching part 11 having first and second attaching holes 2a, 2b inserted with support members extended from a vehicular body 3, to a lower side attaching part 12 having a third attaching hole 2c inserted with a support member extended from an exhaust pipe 4 by means of a pair of main springs 13, 13. Grooves 2d, 2e recessed in a longitudinal direction are formed on the upper side attaching part 11 from both side surfaces in a longitudinal direction, so as to be opened to edges of the first and second attaching holes for communicating them with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust pipe supporting device used for suspending and supporting an exhaust pipe connected to a vibration source such as a prime mover with respect to a supported body such as a vehicle body.

[0002]

2. Description of the Related Art Conventionally, as this kind of exhaust pipe supporting device, three mounting portions each having one mounting hole are arranged in an inverted triangular shape, and these mounting portions are connected to each other by a connecting portion. Are known (for example,
No. 14016). In this device, a pair of support members extending from the vehicle body are inserted into two mounting holes positioned substantially horizontally on the upper side, and a support member extending from the exhaust pipe into one mounting hole located on the lower side. Is inserted.

Further, there is known a mounting hole into which a support member extending from a vehicle body is inserted, which is formed in a horizontally long shape (Japanese Patent Application Laid-Open No. 8-183353 or Japanese Patent Application Laid-Open No. 8-2304).
No. 92). In this device, while the mounting hole formed in the above-mentioned horizontally long shape is formed on the upper side of the exhaust pipe supporting device,
A circular mounting hole is formed on the lower side. Then, a plate-shaped support member having a curved cross-sectional shape is used as a support member extending from the vehicle body, and this support member is inserted into the horizontally long mounting hole, and exhaust gas is discharged into a mounting hole formed on the lower side. A support member extending from the tube is inserted.

[0004]

In the exhaust pipe supporting apparatus as described above, the position of the supporting member is determined by the inner peripheral surface of the mounting hole pressing the supporting member with the supporting member inserted into the mounting hole. It is fixed. Since the exhaust pipe supporting device must not easily move even when vibration is input, the inner diameter of the mounting hole is the same as the outer diameter of the supporting member, or the outer diameter of the supporting member. Need to be slightly smaller than

However, the mounting hole is formed such that the inner diameter thereof is the same as or slightly smaller than the outer diameter of the supporting member, so that the supporting member is not attached when the exhaust pipe supporting device is mounted. However, there is an inconvenience that it is difficult to move the exhaust pipe supporting device inserted into the mounting hole to the disposition position along the supporting member.
Particularly, in the exhaust pipe supporting device described in Japanese Utility Model Publication No. 63-14016, it is necessary to press-fit a pair of supporting members extending from the vehicle body into two mounting holes at the same time. There is a disadvantage that it is even more difficult to move to the arrangement position along.

Also, in the exhaust pipe supporting device described in Japanese Patent Application Laid-Open No. 8-183353 or Japanese Patent Application Laid-Open No. 8-230492, a mounting hole into which a supporting member extending from the vehicle body is inserted is formed in a horizontally long shape. Therefore, there is a problem that a contact area where the support member contacts the inner peripheral surface of the mounting hole becomes relatively large. For this reason,
It becomes difficult to move the exhaust pipe supporting device along the supporting member, and as a result, there is a disadvantage that the mounting operation becomes difficult.

In particular, depending on the place where the exhaust pipe supporting device is mounted, the operator must work in an unreasonable posture, and the mounting operation of moving the exhaust pipe supporting device along the supporting member is more difficult. There is a problem that it becomes a thing.

However, as described above, it is necessary to firmly fix the position of the exhaust pipe supporting device, and it is difficult to form the mounting hole slightly larger than the supporting member. This and the secure fixation of the exhaust pipe support device conflict with each other.

The present invention has been made in view of such circumstances, and an object thereof is to provide an exhaust pipe in which a pair of mounting holes into which a pair of support members extending from a vehicle body are inserted are formed. It is an object of the support device to achieve both secure fixing and easy mounting.

[0010]

In order to achieve the above-mentioned object, the present inventor has proposed that the contact area between the support member and the mounting hole be reduced as much as possible only at the time of mounting. In view of the fact that both easy mounting of the device and secure position fixing are achieved, if a notch is formed in a part of the inner peripheral surface of the mounting hole, the support member and the mounting hole can be formed only during the mounting. The present invention has been completed by paying attention to the fact that the contact area can be reduced as much as possible.

More specifically, the present invention is directed to an exhaust pipe support device for suspending and supporting an exhaust pipe with respect to a supported body, in which a pair of support members disposed at an upper end and extending from the supported body are provided. An upper mounting portion having a pair of mounting holes into which the mounting member is inserted, and a lower mounting portion having a mounting hole provided on the lower end side and having a mounting member into which a support member extending from the exhaust pipe is inserted are connected to each other by a pair of main spring portions. The upper mounting portion is provided with a groove between the pair of mounting holes, the groove being concave in the front-rear direction from one end surface in the front-rear direction. And it is a specific matter that the concave groove is formed at each edge on one side in the front-rear direction of the pair of mounting holes so as to connect the pair of mounting holes to each other. Here, the "exhaust pipe" is connected to a prime mover that is a vibration source to transmit vibration from the prime mover, and a muffler and the like communicated with the exhaust pipe main body in addition to the exhaust pipe main body. Including.
Further, as the “exhaust pipe support device”, any device may be used as long as the upper mounting portion and the lower mounting portion are connected to each other by a pair of main spring portions, and specifically, for example, the upper and lower mounting portions The pair of main springs may be formed by integral molding of a rubber elastic body, or an upper mounting portion that projects downward from an upper position with respect to an annular plate-like spring ring, A so-called ring hanger in which a lower mounting portion projecting upward may be provided.

In this case, when the exhaust pipe supporting device is mounted, the lower portion of the exhaust pipe supporting device is attached to the supporting member while the supporting member is inserted into the pair of mounting holes due to the formation of the concave groove. Front to back direction (longitudinal direction of support member)
Can be easily shaken (tweaked). By prying the exhaust pipe supporting device in this manner, a vertical tension acts on one end face of the exhaust pipe supporting device on one side in the front-rear direction, and the pair of mounting holes expands in the vertical direction. Therefore, the contact area between the support member and the inner peripheral surfaces of the pair of mounting holes is reduced as much as possible, and the exhaust pipe support device can be easily moved along the support member. As a result, the work of mounting the exhaust pipe support device is facilitated.

On the other hand, if the exhaust pipe supporting device is moved to the mounting position with respect to the supporting member, the portion of the mounting hole where the concave groove is not formed presses the supporting member. Therefore, the position of the exhaust pipe support device is reliably fixed to the support member. As a result, both the simplification of the mounting operation of the exhaust pipe support device and the reliable fixing of the position are compatible.

If such a concave groove is formed on the traveling direction side when the exhaust pipe supporting device is moved, the traveling direction side portion of the mounting hole expands vertically, so that the above-mentioned groove is more easily formed. The exhaust pipe support device can be moved.

Therefore, the upper mounting portion is provided with front and rear concave grooves that are concave in the front and rear direction from both end surfaces in the front and rear direction between the pair of mounting holes, and each of the pair of concave grooves is The pair of mounting holes may be formed so as to open at respective edges on both sides in the front-rear direction of the mounting hole and to connect the pair of mounting holes to each other. In this case, since the concave groove is formed on both end surfaces in the front-rear direction of the upper mounting portion, the concave groove is always formed even when the exhaust pipe support device is inserted into the support member from any side. In the direction of travel. Therefore, it is not necessary to check the insertion direction of the exhaust pipe supporting device at the time of mounting work,
Work can be facilitated. On the other hand, when the exhaust pipe support device is moved to the mounting position of the support member, the support member is pressed by the portion where the concave groove is not formed. It is possible to securely fix the position.

[0016]

As described above, according to the exhaust pipe support device of the first aspect of the present invention, the concave member is formed so that the support member is inserted into the pair of mounting holes. The exhaust pipe support device can be easily pryed with respect to the support member, and the exhaust pipe support device can be easily moved along the support member. On the other hand, if the exhaust pipe supporting device is moved to the mounting position with respect to the supporting member, the portion of the mounting hole where the concave groove is not formed presses the supporting member. Can be reliably fixed in position. as a result,
It is possible to achieve both easy installation work of the exhaust pipe support device and reliable fixing of the position.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, it is not necessary to check the insertion direction of the exhaust pipe supporting device at the time of the mounting operation, thereby facilitating the operation. Can be achieved.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an exhaust pipe supporting apparatus according to an embodiment of the present invention. Reference numeral 1 denotes an exhaust pipe supporting apparatus formed of a uniform rubber elastic body and having a constant thickness and a substantially circular shape. . The exhaust pipe support device 1 has an upper mounting portion 11 in which a pair of mounting holes, a first mounting hole 2a and a second mounting hole 2b, are formed in an upper end portion, and a third mounting hole 2c in a lower end portion. And a lower mounting portion 12. A pair of main spring portions 13 are formed so as to connect the upper and lower mounting portions 11 and 12 to each other.

As shown in FIG. 2 or 3, between the first mounting hole 2a and the second mounting hole 2b, there are formed concave grooves 5a, 5b which are concave from both end surfaces in the front-rear direction. The concave grooves 5a and 5b are opened in the inner peripheral surfaces of the first and second mounting holes 2a and 2b, and the first and second mounting holes 2a and 2b are connected to each other. ing. A space 14 penetrating in the thickness direction is provided between the upper mounting portion 11 and the lower mounting portion 12.

As shown in FIG. 1, a first and a second support member 3 as a pair of support members from a vehicle body 3 as a supported body are inserted into the first and second mounting holes 2a and 2b.
a and 3b are inserted, and the support member 4a from the exhaust pipe 4 is inserted into the third mounting hole 2c.

The upper end of the lower mounting portion 12 is formed as a stopper 12a projecting upward. When a vertical load is applied to the exhaust pipe supporting device 1, the stopper 12a is moved upward. By contacting the lower surface of the upper mounting portion 11, the vertical displacement is regulated to a predetermined amount.

Next, the operation and effect of the above embodiment will be described.

When the exhaust pipe supporting device 1 is mounted, the first and second grooves are formed due to the formation of the concave grooves 2d and 2e.
With the support members 3a, 3b inserted into the first and second mounting holes 2a, 2b, the lower portion of the exhaust pipe support device 1 is moved to the first position.
In addition, it is possible to easily shake (pry) the second support members 3a and 3b in the front-rear direction (see the solid line in FIG. 4). By prying the exhaust pipe supporting device 1 in this manner, a vertical tension acts on the front and rear end surfaces of the exhaust pipe supporting device, and the first and second mounting holes 2a, 2
b expands vertically. For this reason, the first
And second support members 3a, 3b and first and second mounting holes 2
It is possible to reduce the contact area of the a and 2b with the inner peripheral surface. Thereby, the exhaust pipe support device 1 can be easily moved along the first and second support members 3a, 3b, and as a result, the attachment work of the exhaust pipe support device 1 is facilitated. Will be able to do it.

On the other hand, when the exhaust pipe support device 1 is moved to the mounting position with respect to the first and second support members 3a and 3b, the concave grooves 2d and 2d of the first and second mounting holes 2a and 2b are formed.
The portion where 2e is not formed presses the first and second support members 3a and 3b. Therefore, the position of the exhaust pipe support device 1 is reliably fixed to the first and second support members 3a and 3b. As a result, both the simplification of the mounting work of the exhaust pipe support device 1 and the reliable fixing of the position can be achieved.

Further, the concave grooves 2d and 2e are provided on the upper mounting portion 1.
1 is formed on both end surfaces in the front-rear direction, so that the exhaust pipe support device 1 is always inserted into the first and second support members 3a, 3b from either side.
Either d or 2e is located on the above-mentioned traveling direction side. For this reason, it is not necessary to confirm the insertion direction of the exhaust pipe supporting device 1 at the time of mounting work.
Work can be facilitated.

<Other Embodiments> The present invention is not limited to the above embodiments, but includes various other embodiments. That is, in the above embodiment,
Although the concave grooves 2d and 2e are provided on both end surfaces in the front-rear direction of the upper mounting portion 11, the present invention is not limited to this. For example, as shown in FIG. The groove 2f may be provided. In this case,
If the concave groove 2f is directed in the direction of travel of the exhaust pipe support device 1, the first and second mounting holes 2a, 2b
The above-mentioned portion in the traveling direction expands up and down, so that the exhaust pipe supporting device 1 can be more easily moved.

In the above embodiment, the grooves 2d and 2e are provided for the exhaust pipe supporting device 1 formed by integral molding of a rubber elastic body. However, the present invention is not limited to this. For example, FIG. As shown in FIG. 7, a so-called ring hanger 10, ie, an annular leaf spring ring 150
Upper mounting portion 11 protruding downward from the upper position
0 is provided, and a lower mounting portion 1 protruding upward at a lower position.
20 may be provided, and the left and right side portions of the leaf spring 150 may become the main spring portions 130, 130, and a concave groove may be provided. In this case, a pair of first and second mounting holes 2a and 2b are formed in the upper mounting portion 110, and the lower mounting portion 120 is formed.
In this case, the third mounting hole 2c may be formed. A groove 2 is provided between the first and second mounting holes 2a and 2b.
d and 2e may be provided. Even in this case, when the exhaust pipe support device 10 is mounted, the exhaust pipe support device 10 can be easily moved along the support member, thereby facilitating the mounting operation. Will be able to Then, the exhaust pipe support device 1
0 is moved to the mounting position with respect to the support member, the portions of the first and second mounting holes 2a and 2b where the concave grooves 2d and 2e are not formed press the support member. The position of the exhaust pipe support device 10 is reliably fixed to the support member. As a result, both the simplification of the mounting operation of the exhaust pipe supporting device 10 and the reliable fixing of the position can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view showing an exhaust pipe support device.

FIG. 3 is a sectional view showing an AA section in FIG. 2;

FIG. 4 is an explanatory cross-sectional view showing a state at the time of attaching the exhaust pipe support device.

FIG. 5 is a view corresponding to FIG. 3, showing a longitudinal section of an exhaust pipe supporting device according to another embodiment.

FIG. 6 is a cross-sectional view showing a cross section taken along line CC of FIG. 7 in a leaf spring type exhaust pipe supporting device according to another embodiment.

FIG. 7 is a sectional view showing a BB section of FIG. 6;

[Explanation of symbols]

 1, 10 Exhaust pipe support device 3 Body (supported body) 4 Exhaust pipe 11, 110 Upper mounting part 12, 120 Lower mounting part 13, 130 Main spring part 2a First mounting hole 2b Second mounting hole 2c Third mounting Holes 2d, 2e, 2f Grooves 3a, 3b Support member (supported member) 4a Support member (exhaust pipe)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3D038 BA02 BB01 BC01 BC22 3G004 BA04 DA13 EA03 3J048 AA01 AC01 AD12 BA21 DA07 EA30

Claims (2)

[Claims] 1. An exhaust pipe supporting device for suspending and supporting an exhaust pipe from a supported body, said upper mounting having a pair of mounting holes disposed at an upper end side and into which a pair of supporting members extending from the supported body are inserted. And a lower mounting portion provided at a lower end side and having a mounting hole into which a support member extending from the exhaust pipe is inserted, is connected to each other by a pair of main spring portions, and the upper mounting portion is connected to the pair of mounting holes. And a concave groove that is concave in the front-rear direction from one end surface in the front-rear direction between the pair of mounting holes. The concave groove is opened at each edge of the pair of mounting holes on one side in the front-rear direction. The exhaust pipe supporting device is formed so as to be connected to each other. 2. The upper mounting portion according to claim 1, wherein the upper mounting portion includes front and rear concave grooves that are concave in the front and rear direction from both end surfaces in the front and rear direction between the pair of mounting holes. An exhaust pipe supporting device, wherein the pair of mounting holes are formed so as to open at respective edges on both sides in the front-rear direction and connect the pair of mounting holes to each other.