JPH034844Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to an engine mount assembly, and more particularly to an engine mount assembly in which a vibration isolating member is fixed to a mount body by fitting.

Prior Art A type of engine mount that elastically supports an engine includes (a) a holding part with a fitting hole and a fixing part, and the mount body is fixed to either the engine or the vehicle body at the fixing part. and (b) a cylindrical rubber cushion portion, and an inner cylindrical metal fitting and an outer cylindrical metal fitting fixed to the inner and outer peripheral surfaces thereof, respectively, and the outer cylindrical metal fitting is fitted into the fitting hole of the holding portion. There is a type that includes a vibration isolating member that is held together with the inner cylinder fitting and is attached to the other of the engine and the vehicle body.

Conventionally, in this type of engine mount,
The holding part and the fixing part of the mount body are each made of separate members, which are fixed and integrated by welding. The mount body shown in FIG. 3 is a specific example of the mount body.
The member 102, which should serve as a fixed part, was joined to the 00 by welding or the like and integrated.

Problems that the invention aims to solve However, when welding the parts that make up the holding part and fixing part of the mount body into one piece, quality problems may occur due to welding defects, welding distortion, etc. In addition, when assembling the engine mount, welding work is required, which increases the number of man-hours and increases the cost of the product.

On the other hand, as described in Japanese Utility Model Application Publication No. 57-202307, for example, by bending a metal plate into a substantially U-shape, a holding part consisting of a pair of opposing plate-like parts and a pair of the holding parts are formed. By manufacturing a mount body that is integrally equipped with a fixing part that connects the plate-like parts of the mount, there is no welding process between the holding part and the fixing part, which eliminates quality problems caused by welding. It is thought that the manufacturing man-hours and product cost of the mount body are reduced.

However, in this case, when the outer cylindrical metal fitting of the vibration isolating member is press-fitted into the fitting holes formed in the pair of plate-like parts of the mount body, it is necessary to Since it is necessary to insert the tool, a relatively large amount of effort is required during press-fitting, making it difficult to quickly manufacture the engine mount assembly. Also, when inserting a receiving jig between a pair of plate-like parts, if the distance between both plate-like parts is smaller than the thickness of the receiving jig,
Since the receiving jig must be inserted with both plate-shaped parts separated from each other by a predetermined distance, the effort required during press-fitting increases, making it even more difficult to quickly manufacture the engine mount assembly.

Means for Solving the Problems The present invention was developed against the background of the above-mentioned circumstances, and its gist is that a single metal plate is bent into a substantially U-shape, and A mount body that has fitting holes concentric with each other in a pair of plate-like parts and is fixed to either the engine or the vehicle body at a fixing part that connects the pair of plate-like parts, and a cylindrical rubber cushion part. and an inner cylindrical metal fitting and an outer cylindrical metal fitting fixed respectively to the inner peripheral surface and outer peripheral surface thereof. In an engine mount assembly in which the cylindrical metal fitting includes the engine and a vibration isolating member attached to the other side of the vehicle body, and elastically supports the engine, the pair of plate-like parts are arranged at opposite positions on the outer periphery of the pair of plate-shaped parts. The protruding pieces are integrally provided, each protruding in the approaching direction and having their tip surfaces abutted against each other.

Operation and Effects of the Invention In the engine mount assembly having such a configuration, the mount body is molded from a metal plate material, and the holding part and the fixing part, which are made up of a pair of plate-shaped parts, are integrally formed at the time of its manufacture. Since the process does not include the process of welding the holding part and the fixing part, quality problems caused by welding are eliminated, and since there is no welding process, the number of man-hours for manufacturing the mount body is reduced, and the product cost is also reduced.

In addition, since the tip surfaces of the protrusions provided on the outer periphery of the pair of opposing plate-like parts of the mount body are butted against each other, it is not necessary to insert a receiving jig between the two plate-like parts. It becomes possible to press-fit the vibration isolating member into the fitting holes of both plate-shaped parts. As a result, if there is no need to insert the receiving jig between the two plate-shaped parts due to the presence of the protrusion, the effort required during press-fitting can be reduced and the engine mount assembly can be manufactured more quickly. . In addition, even if the protrusion alone cannot handle the press-fitting and a receiving jig needs to be inserted between the two plate parts, the spacing between the two plate parts can be maintained at a certain limit or more by the protrusion. Therefore, the distance between the two plate parts is prevented from becoming smaller than the thickness of the receiving jig, and there is no need to separate the two plate parts from each other in order to insert the receiving jig between the two plate parts. This can prevent unnecessary increases in labor during press-fitting. As a result, even when the receiving jig is inserted between both plate-shaped parts, the engine mount assembly can be manufactured more quickly than when no protrusion is provided.

Moreover, since the projecting piece is integrally provided on the outer periphery of the pair of plate-like parts, there are cases where another member constituting the projecting piece is integrally fixed to both plate-like parts by welding or the like, or a projecting piece is provided. Compared to the case where a cylindrical member is integrally fixed between the fitting hole peripheries of both plate parts by welding or the like, the manufacturing man-hours and manufacturing time of the mount body can be further reduced, and the engine mount assembly can be There is an advantage that the product cost can be further reduced.

Embodiments Next, embodiments of the present invention will be described in detail based on the drawings.

In FIG. 1, reference numeral 10 denotes a mount body formed by bending a steel plate, in which a holding portion 14 and a fixing portion 12 are integrally formed. The holding part 14 is a part that holds the cylindrical vibration isolating member 24, and is made up of a pair of substantially circular plate parts 16 that are parallel to each other and face each other at a predetermined interval. Each fitting hole 20 is provided at a mutually concentric position. Further, the peripheral edges of these fitting holes 20 are formed into flanges 22 that project inward and face each other, and a vibration isolating member 24 is tightly fitted to the inner peripheral surfaces of these flanges 22. Furthermore, each pair of protrusions 18 that protrude inwardly from each other is provided on the outer peripheral portion of each of these plate-shaped portions 16 at positions facing each other. These protrusions 1
The distal end surfaces of the plates 8 are butted against each other, thereby keeping the pair of plate-shaped portions 16 at an appropriate distance.

On the other hand, the fixing part 12 has a U-shape to connect the pair of plate parts 16, and has a nut 32 on its inner surface.
is welded and fixed, and a bolt for attaching the mount body 10 to the engine is screwed into the female threaded hole.

This mount body 10 can be easily manufactured by pressing a plate material. in particular,
A plate-shaped material is punched to form a plate having a plate-shaped part 16, a protrusion 18, and a fitting hole 20 on both sides of the fixing part 12, and then the fitting hole 20 is burred to form a flange 22. At the same time, the protruding piece 18 is bent at a right angle, and then the fixing part 12 is bent at a right angle at two places, so that the pair of plate-shaped parts 16 face each other, and the tips of the protruding pieces 18 are butted against each other, thereby forming the mount body 10. is completed. Then, the engine mount is assembled by press-fitting the vibration isolating member 24 into the inner peripheral surface of the flange 22 of the mount main body 10 thus formed. Note that when press-fitting the vibration isolating member 24, a receiving jig is inserted between the pair of plate-shaped portions 16 as necessary.

The vibration isolating member 24 has a thick cylindrical cushion portion 26 made of synthetic rubber, and an inner cylindrical metal fitting 28 and an outer cylindrical metal fitting 30 fixed to the inner and outer circumferential surfaces of the cushion portion 26, respectively. The outer peripheral surface of the mount body 10 is tightly fitted to the inner peripheral surface of the flange 22 of the mount body 10, while the inner cylinder fitting 28 is attached to the vehicle body with bolts or the like (not shown).

As described above, in the engine mount assembly of this example, the mount main body 10 is formed by press working a plate material, and the holding part 14 and the fixing part 12 are integrally formed. That is, when manufacturing the mount body 10, the holding part 14 and the fixing part 12 are
This method does not include a step of welding the two together, so there is no risk of quality problems caused by such welding, and the number of man-hours is also reduced, resulting in lower product costs.

Further, according to the present embodiment, two sets of plates are provided at opposing positions of the outer peripheral edges of the pair of circular plate portions 16 of the mount body 10 and located on opposite sides of each other in the radial direction. Since the projecting pieces 18 are provided and their tip surfaces are butted against each other, the vibration isolating member 24 can be inserted into the fitting hole 20 of both the plate-like parts 16 without necessarily inserting a receiving jig between the both plate-like parts 16. It becomes possible to press fit. As a result, the projecting piece 18
If there is no need to insert the receiving jig between the plate-shaped parts 16 due to the presence of the holder, the effort required during press-fitting is reduced, and the engine mount assembly can be manufactured more quickly.

Further, according to this embodiment, since the distance between the two plate-shaped parts 16 is maintained at a certain limit or more by the two sets of protrusions 18, the receiving jig cannot be inserted between the two plate-shaped parts 16. Even if it is necessary, both plate-like parts 1
6 is prevented from becoming smaller than the thickness of the receiving jig, and there is no need to separate the plate-like parts 16 from each other in order to insert the receiving jig between the plate-like parts 16. This can prevent unnecessary increases in time and effort. Thereby, even when the receiving jig is inserted between both plate-shaped parts 16, the engine mount assembly can be manufactured more quickly than when the protruding piece 18 is not provided.

Further, according to the present embodiment, the portions forming the projecting pieces 18 are formed on the outer peripheral edges of the portions forming both plate-like portions 16 by press working the plate-like material,
By simply bending and raising the portion constituting the protrusion 18 at right angles, the protrusion 18 in the mount body 10 is provided integrally with the outer periphery of both plate-shaped portions 16, so that another member constituting the protrusion 18 In cases where a cylindrical member is integrally fixed to both plate-shaped parts 16 by welding or the like, or in cases where a cylindrical member is integrally fixed by welding or the like between the fitting hole peripheries of both plate-shaped parts without providing the protruding piece 18, etc. Compared to the above, there is an advantage that the number of manufacturing steps and manufacturing time of the mount body 10 are further reduced, and the product cost of the engine mount assembly is further reduced.

In this example, flanges 22 are provided at the peripheral edge of the fitting hole 20 of the holding part 14 and project inwardly from each other to form a fitting part into which the vibration isolating member 24 is fitted. It is also possible to form only the fitting hole 20 in the holding part 14 without forming such a flange 22, and to fit the vibration isolating member into the fitting hole 20.

In addition, the present invention can be implemented with various modifications based on the knowledge of those skilled in the art without departing from the spirit thereof, such as forming the holding part and the fixing part in various other shapes. be.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an engine mount assembly according to an embodiment of the present invention in a disassembled state into a mount body and a vibration isolating member. FIG. 2 is a cross-sectional view of the mount body in FIG. 1. Third
The figure is a perspective view showing an example of a mount body in a conventional engine mount assembly. 10: mount body, 12: fixing part, 16: plate-shaped part, 20: fitting hole, 24: vibration isolating member, 26: cushion part, 28: inner cylinder metal fitting, 30: outer cylinder metal fitting.

Claims (1)

[Claims for Utility Model Registration] It is bent into a substantially U-shape from a single metal plate, and each of the pair of opposing plate-shaped parts has a concentric fitting hole and connects the pair of plate-shaped parts. The mount body is fixed to either the engine or the vehicle body at a fixing part, and a cylindrical rubber cushion part and an inner cylindrical metal fitting and an outer cylindrical metal fitting respectively fixed to the inner and outer peripheral surfaces of the cylindrical rubber cushion part, The outer cylindrical metal fitting is press-fitted and held in the fitting holes of the pair of plate-shaped parts, while the inner cylindrical metal fitting includes a vibration isolating member attached to the other of the engine and the vehicle body,
In the engine mount assembly that elastically supports the engine, protrusions are integrally formed at opposing positions of the outer peripheral edges of the pair of plate-shaped parts, protruding in a direction toward each other and having their tip surfaces abutted against each other. An engine mount assembly characterized by being provided.