JP2586661Y2 - Engine mount assembly structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine mount assembly structure.

[0002]

2. Description of the Related Art As is well known, an engine room of an automobile is provided with an engine mount for supporting an engine and a transmission and preventing transmission of vibration from the engine to a vehicle body.

[0003] The engine mount 30 is, for example, F
A description will be given of the case of a horizontal engine used in an F-vehicle. As shown in FIG. And 30B). Engine mount 3 located in the longitudinal direction of the vehicle
OB is provided via a bracket attached to a center member located below the engine, so as to support the weight of the engine 50 and dampen the vibration. The engine mount 30A located in the vehicle width direction is for suppressing rolling vibration of the engine 50 via a bracket attached to a panel on the vehicle body side.

[0004] The engine mount 30 is formed of, for example, a cylindrical mount as shown in FIG. The cylindrical mount 30 has a rubber bush 34 in which an inner cylinder 32 is vulcanized and bonded.
And a bracket 38 that holds the outer cylinder 36 and is attached to the vehicle body. Such a cylindrical mount 30 is fixed to the vehicle body by fastening a bolt inserted from the vehicle body to a fastening portion 40 such as a nut welded to the bracket 38.

On the other hand, for mounting on the engine side, for example, a holding bracket 42 fixed to the engine side is used. That is, the holding bracket 42
Are channel-shaped members provided with holding pieces 42A on both sides in the thickness direction of the cylindrical mount and press-formed base pieces 42B which are connected to each other and attached to the engine side. Also, the holding piece 42A has
An insertion hole 42A1 for the bolt 44 inserted into the inner cylinder 32 of the cylindrical mount is formed.

Therefore, when setting the cylindrical mount on the engine side, the holding pieces 42A of the holding bracket 42 to which the base piece 42B is attached are opposed to both ends of the inner cylinder of the cylindrical mount. The tubular mount is fixed to the holding bracket 42 by inserting the bolt 44 and tightening the bolt 44 with a nut 46.

[0007]

However, in such an engine mount, the mounting of the mount is troublesome.

That is, in the case of the structure shown in FIG. 4, when the cylindrical mount is mounted on the holding bracket 42 on the engine side, a bolt 44 inserted through the cylindrical mount is used.
, A support structure at both ends is set by a holding piece 42A of the holding bracket 42. Therefore, it is necessary to determine the bolt insertion position with the holding piece 42A even after the bolt is inserted through the cylindrical mount. That is, when assembling the cylindrical mount to the holding bracket 42, even if the bolt 44 can be easily inserted into the one holding piece 42A and the inner cylinder 32 on the upstream side in the insertion direction of the bolt 44, the other holding piece 42A When the bolt 44 reaches the piece 42A, the insertion hole of the holding piece 42A may be displaced from the position of the tip of the bolt.
In this case, the insertion point of the bolt 44 must be determined in a groping state.

Further, when the bolt 44 is fastened, the nut 46 must be kept from turning when the bolt 44 is turned. Therefore, it takes time and effort to insert the bolts 44, which leads to an increase in assembling work time and makes the operator feel that the assembling work is troublesome.

Accordingly, an object of the present invention is to provide an assembling structure of an engine mount in which an assembling operation can be performed by a simple operation in view of the above-described problems in the assembling structure of the conventional engine mount.

[0011]

According to the present invention, there is provided a structure for assembling an engine mount for supporting the weight of an engine and damping vibration from the engine. The engine mount has one end in the axial direction inserted and held, and the other end has a fastening portion, and a support rod having a detent surface formed continuously with the fastening portion, and a mounting structure on the engine side. And a support bracket, wherein the support bracket is
A support piece is provided on one side in the axial direction of the support rod and formed with a groove into which the fastening part is inserted, and the support piece has a detent part with which the detent surface contacts. It is characterized by:

According to a second aspect of the present invention, in the engine mount according to the first aspect, the detent portion of the support piece is provided.
It is characterized by being formed by a concave portion.

[0013]

According to the present invention, only the support bracket disposed at one axial end of the support rod supports the support rod inserted and held in the engine mount. In addition, the support bracket is provided with a support piece having a rotation preventing portion formed on the flat surface of the support rod. Therefore,
When assembling the engine mount between the engine and the vehicle body, simply fit the detent surface of the support rod into the detent part of the support bracket and fasten the fastening part of the support rod projecting from the groove. Of the support rod is maintained. Moreover, the support bracket is
Since it is only located at one end in the axial direction of the support rod, it is only necessary to check the fastening state at one end in the axial direction of the support rod, and furthermore, by the above-described detent of the support rod,
The engine mount can be assembled only by tightening the fastening member used for this fastening.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of an embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing an assembly structure of an engine mount according to the present invention.

The present embodiment is characterized in that a structure is provided for supporting the engine mount at one end in the thickness direction of the engine mount.

That is, the assembly structure according to the present invention is as follows.
An engine mount 10, a support rod 16, and a support bracket 18 are provided as main components.

Hereinafter, each member will be described.

The engine mount 10 includes an inner cylinder 10A, a rubber bush 10B and an outer cylinder 10C as main parts.

The inner cylinder 10A is formed by a hole formed in the center of the rubber bush 10B, and has a flat surface 10A1 at a position facing the center of the rubber bush 10B. This flat surface 10A
For example, 1 is a plane perpendicular to the direction in which a load such as vibration from the engine is applied. In this embodiment, a metal reinforcing plate 10A2 is arranged around the hole constituting the inner cylinder 10A, and the reinforcing plate 10A2 is vulcanized and bonded to a rubber bush 10B described later. In addition,
The hole that forms the inner cylinder 10A is the flat surface 10A described above.
The shape is not limited to the shape having 1, and any shape may be used as long as the shape closely adheres to a flat surface of a support rod described later.

The rubber bush 10B is formed of an inner cylinder 10A.
Are integrated by vulcanizing and bonding to an outer peripheral wall of the first embodiment and an outer cylinder 10C described later. The rubber bush 10B has a flat surface along the shape of the inner cylinder 10A at a position where the rubber bush 10B is bonded to the inner cylinder 10A and the outer cylinder 10C. It is molded to become. When the inner cylinder 10A is displaced, the rubber bush 10B comes into close contact with each other to regulate the displacement of the inner cylinder 10A.

The outer cylinder 10C is formed by pressing a metal plate into a shape excluding the bottom surface side of the rubber bush 10B, and has a flange portion 10C1 bent horizontally in the bottom surface side. . This outer cylinder 1
In the illustrated embodiment, the upper side is set to a flat surface along the shape of the inner cylinder 10A, while 0C is a position facing the flat surface of the inner cylinder 10A. The outer cylinder 10C has a beading for reinforcement on a surface excluding the flange portion 10C1. The flange portion 10C1 is a portion for attaching the outer cylinder 10C to the vehicle body side. For this reason, a fastening member 12 such as a nut is welded to the upper surface.

In this embodiment, a holding plate 14 is provided on the bottom side of the outer cylinder 10C and fixed between the flange portions 10C1. The holding plate 14 is a member that is provided when there is no member that restricts the displacement of the rubber bush 10B in the support portion on the vehicle body side to which the engine mount 10 is attached. And can receive a flat surface formed on the rubber bush 10B. Therefore, the holding plate 14 is unnecessary depending on the structure of the supporting portion on the vehicle body side. For example, the holding plate 14 is integrated with the outer cylinder 10C to form a closed cross section surrounding the entire circumference of the rubber bush 10B. When it is necessary to ensure the strength as described above, it may be provided irrespective of the structure of the support portion on the vehicle body side.

On the other hand, the support rod 16 is a member for connecting the engine mount 10 to a support portion on the engine side, and has a flat surface 16A1 facing the shape of the inner cylinder 10A at one axial end. A rod portion 16A is formed, and a screw portion 16B forming a fastening portion is formed at the other end in the axial direction. The support rod 16 is inserted and held in the engine mount 10. As a method for this, the flat surface 16A is previously integrated into the inner cylinder 10A of the engine mount 10, or Any one of the methods of inserting into the inner cylinder 10 at the time of assembly is selected.

The support bracket 18 is a member attached to the engine, such as an engine or a transmission, and is disposed on one side in the axial direction of the support rod 16, that is, opposed to the threaded portion 16B of the support rod 16.

The support bracket 18 is an angle-shaped member, and has a base piece 18A and a support piece 18B attached to the engine.

A plurality of bolt insertion holes 18A1 are formed in the base piece 18A, and a groove 1 is formed in the support piece 18B.
8B1 are formed. The groove 18B1 formed in the support piece 18B is formed along the extension direction of the support piece 18B.
It is formed with a predetermined length from the end of the support piece 18B. The length of the groove 18B1 in the present embodiment refers to a length necessary for adjusting the position of the support rod 16 inserted therein.
The extending direction of the groove 18B1 may be any direction as long as the cylindrical mount 10 can be prevented from falling off.
It may be a groove that opens upward.

As shown in FIG. 2, recesses 18B2 and 18B3 are formed on the front and back surfaces of the support piece 18B in a thickness direction corresponding to the axial direction of the support rod 16, as shown in FIG. The recesses 18B2 and 18B3 are both formed in the groove 14A.
Are provided in a range excluding the opening end of the. Therefore, the opening end side of the groove 18A is left as the peripheral wall 18C.

Of the recesses 18B2 and 18B3, the recess 18B2 formed at a position facing the end surface of the rod portion 16A of the support rod 16 has a flat portion formed along the shape of the rod portion 16A. Of the flat surface 16A1 can be fitted. Therefore, the flat surface 16A1 of the rod portion 16A can abut on the peripheral wall of the concave portion 18B2.

Further, the concave portion 1 on the opposite side to the concave portion 18B2
8B3 is configured such that an integral washer portion can be fitted to a nut 20 attached to the screw portion 16B of the support rod 16.

The nut 20 mounted on the recess 18B3 is
Although it is possible to move along the extension direction of the groove 18B1, the movement of the groove 18B1 to the opening end side is regulated by the peripheral wall 18C so that the groove 18B1 does not fall off from the opening end side. Therefore, the concave portion 18B3 constitutes a locking portion that can prevent the nut 20, which is a fastening member attached to the support rod 16, from falling off due to the presence of the peripheral wall 18C.

Next, the operation will be described.

When assembling the engine mount 10 between the vehicle body side and the engine side, for example, the support rod 16 is inserted into the inner cylinder 10 of the engine mount 10 in advance. Then, the screw portion 16B of the support rod 16 is inserted into the groove portion 18A of the support bracket 18 so that the flat surface 16A1 of the support rod 16 is
Fit into B2. This allows the engine mount 10
And the support bracket 18 are aligned. In this state, the nut 2 is attached to the thread 16B of the support rod 16 projecting from the groove 18B1 of the support bracket 18.
When the 0 is screwed in, the assembly of the engine mount 10 and the support bracket 18 ends.

When the nut 20 is screwed, the support rod 1 is inserted into the recess 18B3 of the support bracket 18.
Since the flat surface 16 </ b> A <b> 1 of 6 is fitted and prevented from rotating, the operator need only perform the operation of screwing the nut 20.

In mounting the engine mount 10, the support rod 16 is inserted into the inner cylinder 10 of the engine mount 10, and then the groove 1 of the support bracket 18 is inserted.
The procedure is not limited to the procedure in which the screw portion 16B of the support rod 16 is inserted into the support rod 8B1. For example, the support rod 16 is screwed and attached to the support bracket 18 side in advance.
The rod portion 16A of the support rod 16 may be inserted into the inner cylinder 10 of the engine mount 10. In any case, the fastening operation needs to be performed only at one axial end of the support rod 16, and the rotation of the nut 20 is prevented from rotating by turning the rod end surface of the support rod 16 into the one concave portion 18B2 of the support bracket 18. There is no need to do this because of the fitting. When the fastening position of the engine mount 10 is adjusted, the support rod 16 may be displaced in the groove 18B1 of the support bracket 18.

On the other hand, after the fastening, the tightening between the screw portion 16A of the support rod 16 and the nut 20 may be loosened by vibration from the engine. Originally, after fastening, a process to prevent such loosening from occurring by paint etc. is applied, but if the process is not enough,
Sometimes it goes against your will. In this embodiment, if the nut 20 is loosened and the support rod 16 moves in the groove 18B1 of the support bracket 18, the nut 20 is moved by the peripheral wall of the recess 18B3 on the side where the nut 20 is mounted. Can be blocked. Therefore,
It is possible to prevent a situation in which the support rod 16 accidentally moves and comes off the groove 18B1.

According to the present embodiment, since the groove 18B1 capable of displacing the screw 16B on the support rod 16 side is formed in the support bracket 18, the screw 16B of the support rod 16 is inserted obliquely in the groove 18B1. In such a case, the correction can be easily performed, whereby the tightening force of the nut 20 can be applied to the screw portion 16B to the maximum.

[0038]

As described above, according to the present invention, the support rod having the flat surface formed opposite to the support rod is inserted into the engine mount and the load is received only at one axial end of the support rod. The fastening position of the rod can be reduced. Therefore, the work required for positioning the fastening member can be reduced, and the workability can be improved.

Further, in the present invention, when the fastening operation is performed only at one end in the axial direction of the support rod, the structure is such that the rotation of the fastening member can be inevitably performed. Is no longer necessary,
The work of assembling work is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of an assembly structure of an engine mount according to the present invention.

FIG. 2 is an enlarged sectional view schematically showing a position indicated by reference numeral A in FIG.

FIG. 3 is a perspective view showing an example in which a conventional engine mount is assembled.

FIG. 4 is a perspective view showing a main part of the assembly structure shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Engine mount 10A Inner cylinder 10B Rubber bush 10C Outer cylinder 16 Support rod 16A1 Flat surface 16B Screw part 18 Support bracket 18B Support piece 18B1 Groove part 18B2 Recess part 18C which serves as a detent part of support rod 18C Lock part 20 Nut which is a fastening member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16F 1/00-6/00 B60K 5/12

Claims (2)

(57) [Scope of request for utility model registration] 1. A structure for assembling an engine mount for supporting the weight of an engine and damping vibration from the engine, wherein one end in the axial direction is inserted and held in the engine mount, and a fastening portion is formed at the other end. A support rod having a detent surface formed continuously with the fastening portion; and a support bracket having a structure for mounting to the engine side, wherein the support bracket has one end in the axial direction of the support rod. An engine mount, comprising: a support piece arranged on the side and formed with a groove portion into which the fastening portion is inserted, wherein the support piece is formed with a detent portion that contacts the detent surface. Mounting structure. 2. The engine mount assembly structure according to claim 1, wherein the rotation preventing portion of the support piece is formed by a concave portion.