JPH0635691U - Structure of engine mount - Google Patents

Abstract

(57) [Summary] [Purpose] The fixing bolt can be easily inserted into the mounting hole of the engine mount bracket and the inner cylinder of the engine mount rubber, and at the same time, the mount bracket and the mount rubber or inner cylinder can be connected. (EN) Provided is a structure of an engine mount part which can be accurately positioned and connected and fixed. [Constitution] The mounting holes 4a, 4b are connected to the fixing bolts 7
Positioning and fixing parts 5a, 5b that have an opening width corresponding to the outer diameter of the
And an opening width larger than the outer diameter of the fixing bolt 7,
The fixing bolt 7 is formed in a substantially triangular shape like a rice ball including the mounting holes 4a, 4b and the wide portions 6a, 6b for inserting the fixing bolt 7 into the inner cylindrical body 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of an engine mount portion which is provided between an engine and a vehicle body and configured to attenuate engine vibration and noise transmitted to the vehicle body side.

[0002]

[Prior art]

 In order to minimize the transmission of engine vibration and noise to the vehicle body, for example, the following engine mount structure is adopted.

That is, an engine mount bracket having a pair of opposing walls is provided in a protruding manner on one of the engine side and the vehicle body side, and mounting holes are formed in these engine mount brackets. On the other hand, the engine mount rubber fitted on the inner cylinder is supported on the other side of the engine and the vehicle body. Then, the mounting hole and the both ends of the inner cylinder are opposed to each other, and fixing bolts are inserted into and fastened to the pair of mounting holes and the inner cylinder to connect the engine side and the vehicle body side. Fix it. As a result, the vibration and noise of the engine are damped by the mount rubber.

In the structure of the engine mount section as described above, the engine must be positioned and connected and fixed to the vehicle body at a predetermined position. At this time, since the fixing bolt cannot be inserted and inserted unless the center of the mounting hole and the axial center of the inner cylinder are aligned, it is difficult to align them.

In order to solve the above-mentioned difficulty of the work, there has been proposed a device in which a positioning portion is provided on the mount bracket as disclosed in Japanese Utility Model Laid-Open No. 1-145621.

That is, in the invention described in the above publication, a positioning member having a positioning portion capable of engaging and positioning the outer peripheral surfaces of both ends of the inner cylindrical body is provided inside the mount bracket. It is provided.

In the above invention, when the outer peripheral surfaces of both ends of the inner tubular body are brought into contact with the positioning portion, the position where the mount bracket is connected to the inner tubular body or the mount rubber can be determined. Has been done.

[0008]

[Problems to be solved by the device]

 In the structure of the engine mount portion disclosed in the above publication, the pair of mounting holes are formed in a circular shape, and when the outer peripheral surfaces of both ends of the inner cylinder are brought into contact with the positioning portion, the mounting hole is formed. The center of the inner cylinder and the axis of the inner cylinder coincide with each other.

However, unless the positioning member and the pair of mounting holes are provided at accurate positions on the inner surface of the facing wall, the center of the mounting hole and the axial center of the inner cylinder do not coincide with each other, and the fixing bolt is not formed. Since the space of the mounting hole that allows the insertion of the fixing bolt is narrowed, it becomes extremely difficult to insert the fixing bolt.

Therefore, in the device disclosed in the above publication, the positioning member must be joined to the mount bracket with high accuracy. Therefore, the manufacturing cost increases as the manufacturing process and the number of parts increase. In addition, the positioning member must be joined separately, which increases the weight.

The present invention was devised under the circumstances described above, and connects the mounting hole of the engine mount bracket and the inner cylinder of the engine mount rubber with a fixing bolt that is inserted into and communicated with them. In the structure of the engine mount part, the engine can easily insert the fixing bolt into the mounting hole and the inner cylinder, and accurately position and connect and fix the mount bracket and the inner cylinder. It is an object of the present invention to provide a structure of an on-mount part.

[0012]

[Means for Solving the Problems]

 The present invention takes the following means in order to solve the above problems. That is, according to the present invention, the fixing bolts are attached with the both ends of the inner cylinder body in which the engine mount rubber is fitted facing the mounting holes formed in the pair of opposing walls of the engine mount bracket, respectively. In the structure of the engine mount portion configured to connect the mounting rubber or the inner cylindrical body to the mount bracket by communicatingly inserting the pair of mounting holes and the inner cylindrical body, the mounting hole may be the fixing hole. The fixing bolt is formed with an opening width corresponding to the outer diameter of the bolt, and the positioning fixing portion can position the fixing bolt at a predetermined fixing position, and the opening width is larger than the outer diameter of the fixing bolt. And a wide-width portion that is inserted into and communicates with the inner cylindrical body, and is formed in a substantially triangular shape.

[0013]

[Function and effect of device]

 In the structure of the engine mount portion according to the present invention, the mounting holes respectively formed in the pair of opposing walls of the engine mount bracket are formed in a substantially triangular shape and have a positioning and fixing portion and a wide portion. The positioning fixing portion is formed with an opening width corresponding to the outer diameter of the fixing bolt for connecting the mount bracket and the engine mount rubber, and is configured to position the fixing bolt at a predetermined position. There is.

On the other hand, the wide portion is formed with an opening width larger than the outer diameter of the fixing bolt, and the fixing bolt can be easily inserted into the inner cylinder body fitted with the mounting hole and the mount rubber. Is configured.

The fixing bolt is inserted into the mounting hole and the inner cylinder at a position where both ends of the inner cylinder face the wide portion. Then, the mount bracket or the mount rubber is moved to a predetermined connecting position. Then, the fixing bolt is guided by the edge of the mounting hole having the above-mentioned substantially triangular shape and is moved from the wide portion to the positioning fixing portion. Then, the mounting bracket and the mount rubber are connected and fixed by screwing and fastening a nut or the like to the fixing bolt moved to the positioning and fixing portion.

The wide portion is formed with an opening width larger than the outer diameter of the fixing bolt. Therefore, when the fixing bolt is inserted into the mounting hole and the inner cylinder, the fixing bolt can be easily attached even if the facing position of the mounting hole and the end of the inner cylinder is slightly deviated from the center. Can be inserted continuously.

The positioning and fixing portion is formed with an opening width corresponding to the outer diameter of the fixing bolt. Therefore, the fixing bolt moved from the wide portion can be reliably positioned and fixed at a predetermined position.

Moreover, the mounting hole is formed in a generally triangular shape. Therefore, the fixing bolt can be guided to the edge of the mounting hole and easily moved from the wide portion to the positioning fixing portion.

Further, unlike the conventional example, it is not necessary to provide a positioning member for positioning the mount bracket and the mount rubber at a predetermined connecting position. Therefore, the manufacturing process and the number of parts are reduced, the manufacturing cost is reduced, and the weight is also reduced.

[0020]

[Explanation of Examples]

 Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings. In the structure of the engine mount portion of the present embodiment, the engine mount bracket is projected on the engine side member, and the engine mount rubber is projected on the vehicle body side member.

As shown in FIGS. 1 and 2, the engine mount bracket 1 of the present embodiment is provided with a pair of facing walls 2a and 2b facing each other with a predetermined gap. Mounting holes 4a, 4b for connecting the engine mount rubber 3 are formed in the facing walls 2a, 2b, respectively.

The mounting holes 4a, 4b are provided with positioning fixing portions 5a, 5b and wide portions 6a, 6b, respectively, and are formed in a substantially triangular shape.

The positioning and fixing portions 5a and 5b are provided on the top of the substantially triangular shaped rice ball, and are attached to the outer diameter of the fixing bolt 7 for connecting and fixing the mount bracket 1 and the mount rubber 3 to each other. It is formed with a corresponding opening width.

On the other hand, the wide portions 6a and 6b are provided along the sides facing the positioning fixing portions 5a and 5b, and gradually widen from the opening width of the positioning fixing portions 5a and 5b to fix the fixing portions 5a and 5b. It is formed to be larger than the outer diameter of the bolt 7.

As shown in FIGS. 1 and 2, the engine mount rubber 3 of the present embodiment is formed in a cylindrical shape, and the outer cylinder body 8 is fitted on the outer circumference thereof and the inner cylinder body is formed on the inner circumference thereof. 9 is inserted and generally configured.

The outer cylinder body 8 is integrally held by an extension portion 11 extended from the vehicle body side. The inner cylinder 9 is set to be longer than the outer cylinder 8 and slightly shorter than the distance between the opposing walls 2a and 2b.

Hereinafter, a method of connecting the mount bracket and the mount rubber will be described. In the assembly line of the engine part, as shown by the phantom line in FIG. 2, the mount bracket 1 and the mount rubber 1 are mounted so that both end surfaces of the inner cylinder 9 face the wide parts 6a, 6b of the mounting holes 4a, 4b. Position 3 and.

Then, the fixing bolt 7 is inserted into the mounting holes 4a and 4b and the inner cylindrical body 9 from one side, and the washer 12 and the nut 13 are temporarily screwed to the fixing bolt 7 from the other side. , Raise the vehicle side or lower the engine side. Then, as shown by the solid line in FIG. 2, the fixing bolt 7 is inserted into the edges of the mounting holes 4a, 4b and moved from the wide portions 6a, 6b to the positioning fixing portions 5a, 5b.

Then, the washer 12 and the nut 13 are tightened to the fixing bolt 7 moved to the positioning fixing portions 5a and 5b. As a result, the mount bracket 1 and the mount rubber 3 are connected and fixed at a predetermined position, and the engine is mounted at a predetermined position on the vehicle body.

As described above, since the wide portions 6a and 6b are formed with an opening width larger than the outer diameter of the fixing bolt 7, the mounting holes 4a and 4b and the end portion of the inner cylindrical body 9 face each other. Even if the position is slightly deviated from the center, the fixing bolt 7 can be easily inserted and communicated.

On the other hand, since the positioning fixing portions 5a and 5b are formed to have an opening width corresponding to the outer diameter of the fixing bolt 7, the fixing bolt 7 moved from the wide width portions 6a and 6b can be fixed. It can be reliably positioned and fixed at a predetermined position.

Moreover, since the mounting holes 4a and 4b are formed in a generally triangular shape, the fixing bolt 7 is moved from the wide portions 6a and 6b of the mounting holes 4a and 4b to the positioning fixing portions 5a and 5b. It can be easily moved to the positioning fixing parts 5a and 5b by guiding it to the edges.

Further, in the present embodiment, unlike the conventional example, it is not necessary to separately provide a positioning member or the like in order to position the mount bracket 1 and the mount gum 3 at a predetermined connecting position. Therefore, the manufacturing process and the number of parts are reduced, the manufacturing cost is reduced, and the weight is also reduced.

The invention of the present application is not limited to the above embodiment. In the present embodiment, the mount bracket is projected on the engine side member and the mount rubber is projected on the vehicle body side member. However, the present invention is not limited to this. It is also possible to project on the member and project the mount rubber on the engine side member.

Further, in the present embodiment, the positioning fixing portions 5a and 5b are respectively provided on the tip ends of the facing walls 2a and 2b so that the engine side member is suspended and positioned and fixed. It is also possible to form the fixing portions 5a and 5b on the base end sides of the facing walls 2a and 2b, respectively, and position and fix the engine side member so that it is stationary.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a structure of an engine mount portion according to an embodiment of the present invention.

2 is an assembled front view from the direction of arrow A in FIG.

[Explanation of symbols]

 1 (Engine) Mount Bracket 2a, 2b Opposing Wall 3 (Engine) Mount Rubber 4a, 4b Mounting Holes 5a, 5b Positioning Fixing Part 6a, 6b Wide Width Part 7 Fixing Bolt 9 Inner Tube Body

Claims (1)

[Scope of utility model registration request] 1. A fixing bolt is installed in the pair of opposing walls of an engine mount bracket, with the two end portions of an inner cylinder body fitted with engine mount rubber being opposed to the mounting holes formed in the pair of opposing walls. In the structure of the engine mount portion configured to connect the mounting rubber and the inner cylinder body to the mount bracket by communicatingly inserting the mounting hole and the inner cylinder body, the mounting hole is provided outside the fixing bolt. A positioning and fixing portion that is formed with an opening width corresponding to the diameter and that can position the fixing bolt at a predetermined fixing position, and an opening width that is larger than the outer diameter of the fixing bolt. An engine machine characterized by being formed into a substantially triangular rice ball shape having a wide portion for communicating and inserting into a cylindrical body. The structure of the cement unit.