JPH10110760A - Bracket for cylinder type mount an cylinder type mount using the bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bracket for a cylinder type mount to favorably provide load resisting performance without eminently increasing weight and size and have novel structure being excellent in manufacturing properties. SOLUTION: In an opening cylindrical steel plate member 20 having an opening part 26 formed in a periphery, a pair of mounting plate parts 30 and 30 protruding from an outer peripheral surface from both sides between which the opening part 26 is nipped are formed. Further, a block member 22 made of an aluminum alloy is nipped between the surfaces, positioned facing each other, of the mounting plates 30 and 30 and securely laminated together in a close contact state. In this way, a cylindrical holding part 14 on which a mount body 12 is mounted and a bracket 10 for a cylinder type mount having a mounting part 16 attached to one member coupled in a vibration control manner are constituted through composite structure of the steel plate member 20 and the block member 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical mount bracket used for mounting a cylindrical mount to a member to be connected to a predetermined vibration isolation, and a cylindrical mount using the same. TECHNICAL FIELD The present invention relates to a cylindrical mount bracket having a novel structure excellent in manufacturability and capable of advantageously improving load-bearing performance while suppressing the load, and a cylindrical mount using the same.

[0002]

2. Description of the Related Art Conventionally, as a kind of a mounting device interposed between members constituting a vibration transmission system and connecting the two members in a vibration-proof manner, the mounting devices are arranged at a predetermined distance in a radial direction from each other and are mounted on a vibration-proof device. 2. Description of the Related Art There is known a cylindrical mount having a structure in which a shaft member and a cylindrical member attached to one member to be connected are elastically connected by a rubber elastic body interposed therebetween. For example, car suspension bush or F
An example is a cylindrical engine mount for an F-type automobile.

In such a cylindrical mount, in order to attach the outer peripheral surface side of the rubber elastic body to one member which is vibration-isolated and connected, generally, a cylindrical mount to which a cylindrical mount body is fitted and fixed. A tubular mounting bracket having a structure including a holding portion and a mounting portion that is mounted on one of the members that protrudes from the outer peripheral surface of the holding portion and is vibration-proof connected is used. And as such a bracket,
Conventionally, as described in Japanese Utility Model Application Laid-Open No. 63-56340 and the like, those formed by welding a holding portion and a mounting portion each formed of a pressed steel plate have been widely adopted.

However, in the conventional bracket made of a pressed steel plate, it is difficult to sufficiently secure the strength of the mounting portion, particularly at the connecting portion to the holding portion, and a reinforcing rib is required as described in the above-mentioned publication. In addition, there is a problem that the welding area is large and the productivity and cost are poor. In addition, since the reinforcing ribs extend largely in the circumferential direction of the holding portion, there is a problem that a large bracket installation space is required.

[0005] It is conceivable to reduce or eliminate the reinforcing ribs by increasing the thickness of the pressed steel sheet itself forming the mounting portion. It is impractical because the decrease of the size cannot be avoided.

[0006] A bracket in which the holding portion and the mounting portion are integrally cast from an aluminum alloy has also been proposed. However, such an aluminum bracket is inevitably thickened in order to secure necessary strength. There were problems with the installation space and costs. In addition, in order to integrally cast the entire bracket from aluminum alloy, equipment such as a large casting mold is required, which is costly. In addition, high casting accuracy of aluminum alloy ensures high dimensional accuracy. For example, when the bracket is assembled and fixed to the mount body by press-fitting the mount body with the metal sleeve bonded to the outer peripheral surface of the rubber elastic body into the holder, it is difficult It is necessary to perform post-processing such as cutting on the inner peripheral surface, and there has been a problem that productivity and cost are extremely poor.

[0007]

Here, the present invention has been made in view of the above-mentioned circumstances, and the problems to be solved by the inventions according to claims 1 to 3 are as follows.
Without significant weight increase and large size, load-bearing performance,
In particular, it is an object of the present invention to provide a cylindrical mounting bracket having a novel structure which is excellent in manufacturability and which can advantageously obtain the strength of the mounting portion.

According to a fourth aspect of the present invention, there is provided a bracket having a novel structure capable of advantageously improving the load-bearing performance of the bracket without a significant increase in weight, an increase in size, or a reduction in manufacturability. It is an object of the present invention to provide a cylindrical mount provided with the same.

[0009]

According to another aspect of the present invention, there is provided a cylindrical holding portion to which a cylindrical mounting body is fitted and fixed, and an outer periphery of the holding portion. A bracket mounted on one of the members protruding on the surface and connected to the vibration-proof connection, and provided with an opening extending continuously in the axial direction at least at one location on the periphery. For the opened tubular steel plate member,
A pair of mounting plate portions, which are curved or bent toward the outer peripheral surface side from both the opening edge portions located with the opening portion interposed therebetween and protrude on the outer peripheral surface, and are opposed to each other at a predetermined distance in the circumferential direction. In addition to being integrally formed, an aluminum alloy block member is sandwiched between the opposing surfaces of the mounting plate portion, and the block member is tightly fixed to the opposing surfaces of the mounting plate portions so as to be fixed to the opening of the steel plate member. A cylindrical mounting bracket in which the cylindrical holding portion is configured to face a member, and the mounting portion is configured by an overlapping structure of the pair of mounting plate portions and the block member.

That is, the cylindrical mounting bracket having the structure according to the first aspect of the present invention is composed of a steel plate member and an aluminum alloy block member having a holding portion and a mounting portion cooperating with each other. It has a composite structure of: Thereby, in the holding portion, by the steel plate member constituting the majority thereof, a thin and sufficient strength can be secured under good manufacturability and dimensional accuracy by press working, and in the mounting portion, the steel plate member is A sandwich structure in which an aluminum alloy block member is sandwiched between the formed mounting plate parts and tightly adhered to each other, avoiding a significant increase in weight and size, while exhibiting large rigidity and advantageously exerting load-bearing strength It can be done.

In addition, in such a cylindrical mounting bracket, since it is not necessary to fix the mounting portion to the holding portion by welding, it is possible to advantageously improve the manufacturability and stabilize the quality.

[0012] Further, since the mounting portion is reinforced by inserting the block member therein, there is no need to form a reinforcing rib or the like protruding outward, so that a compact reinforcing structure is advantageously realized. It can be done.

Preferably, the block member is continuous with the entire length of the opening in the axial direction at a connection portion between the opposing surfaces of the pair of mounting plate portions and the holding portion where the stress at the time of load input is at a maximum. In particular, it is interposed so as to closely adhere along the surface of the curved or bent portion in the connection portion. More preferably, such a block member is interposed over the entire opposing surfaces of the pair of mounting plate portions so as to fill the space between the opposing surfaces. Thereby, the strength of the mounting portion can be more advantageously ensured.

[0014] Further, as described above, if the block member is interposed so as to fill the entire space between the opposing surfaces of the pair of mounting plate portions and is brought into close contact with each other, generation of a gap in the mounting portion is prevented, There is no problem of intrusion of water and the like.

Further, the steel plate member may be constituted by combining two or more independent press-formed products with each other so as to form an open tubular shape as a whole. By press molding, a cylindrical molded product in which one opening is formed on the periphery can be suitably adopted,
Thereby, a reduction in the number of parts and a further improvement in manufacturability can be achieved.

Further, as the block member, a cast molded product of an aluminum alloy is preferably employed, and particularly, a vacuum die cast molded product is advantageously used from the viewpoint of strength and the like.

Further, according to a second aspect of the present invention, in the cylindrical mounting bracket according to the first aspect, the pair of mounting plate portions are bolted to each other in opposite directions with the block member interposed therebetween. Accordingly, a cylindrical mounting bracket in which the block member is closely fixed to the pair of mounting plate portions is characterized.

In the cylindrical mounting bracket having the structure according to the second aspect of the present invention, the block member can be tightly fixed to the pair of mounting plate portions easily and with sufficient strength. Further, it is also possible to use a bolt for attaching the mounting portion of the bracket to one member to be vibration-isolated and to fix the block member closely to the mounting plate portion, thereby reducing the number of parts. Can be

Further, the invention described in claim 3 is the first invention.
Or in the cylindrical mounting bracket according to any one of 2, between the pair of mounting plate portion and the block member,
It is characterized by a cylindrical mounting bracket provided with locking means for restricting relative displacement in the sliding direction along the overlapping surface.

In the cylindrical mounting bracket having the structure according to the third aspect of the present invention, since the relative displacement between the mounting plate portion and the block member is prevented, a greater strength is exhibited in the mounting portion. It can be done. The locking means can be advantageously realized by, for example, a structure in which a locking projection projecting from a block member is fitted into a locking hole formed in the mounting plate and locked.

Further, in order to solve the above-mentioned problem, a feature of the invention according to claim 4 is that a cylindrical mount body provided with a pocket portion opening on an outer peripheral surface is provided in claim 1. And the opening of the pocket portion in the cylindrical mount main body is directly and fluid-tightly covered with the holding portion in the cylindrical mount bracket, whereby the internal The cylindrical mount has a fluid chamber in which an incompressible fluid is sealed and a fluid flow is generated at the time of vibration input.

In the cylindrical mount having the structure according to the fourth aspect of the present invention, the bracket having the structure according to the first aspect of the present invention is employed, whereby the load bearing strength is advantageously improved. In addition to the fact that the fluid chamber is formed by directly covering the opening of the pocket portion of the cylindrical mount body with the bracket, it is necessary to provide a special member for covering the pocket portion. Therefore, a reduction in the number of components and a simplification of the structure in the fluid-filled cylindrical mount can be advantageously achieved.

The mounting of the cylindrical mount body to the holding portion of the bracket may be performed, for example, by assembling a steel plate member and a block member to produce a bracket, and then press-fitting the cylindrical mounting body into the holding portion. Alternatively, after assembling the cylindrical mount main body into the steel plate member, by assembling the block member to the steel plate member, the mounting of the cylindrical mount main body can be performed simultaneously with the completion of the bracket. Can be adopted.

The incompressible fluid is sealed in the fluid chamber by:
For example, it can be advantageously performed by assembling the cylindrical mount main body to the holding portion of the bracket in a fluid or the like.

Further, as the cylindrical mount body, for example, a shaft member and a metal sleeve arranged at a predetermined distance from each other in the radial direction are connected by a rubber elastic body interposed therebetween. In addition, a structure in which a pocket portion that opens to the outer peripheral surface through an opening window formed in the metal sleeve is formed in a rubber elastic body, or the like can be suitably adopted. Preferably, a seal rubber layer is formed on the outer peripheral surface of the metal sleeve. Is provided, and the fluid chamber is sealed from the external space by the sealing rubber layer being pressed between the metal sleeve and the holding portion of the bracket.

Further, according to a fifth aspect of the present invention, in the cylindrical mount according to the fourth aspect, an opening peripheral portion of the pocket portion in the cylindrical mount main body is formed with respect to a steel plate member constituting the holding portion. By direct pressure contact, the cylindrical mount body is sealed fluid-tightly from the opening of the pocket to the block member on the outer peripheral surface.

In the cylindrical mount having the structure according to the fifth aspect of the present invention, the sealing performance of the fluid chamber with respect to the external space can be advantageously and stably secured.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the present invention more specifically, one embodiment of the present invention will be described in detail with reference to the drawings.

First, FIGS. 1 and 2 show a cylindrical mounting bracket 10 as a first embodiment of the present invention. In these figures, the bracket 1
0 is shown as a cylindrical mount with the mount body 12 mounted.

The bracket 10 has a holding portion 14 having a large-diameter cylindrical shape.
A thick plate-shaped mounting portion 16 is integrally formed on the outer peripheral surface of the main body 4 so as to protrude outward in a substantially radial direction.
And the hollow hole 1 of the holding part 14 in the bracket 10
8 is mounted and fixed in a state in which a mount body 20 having a thick cylindrical shape as a whole is fitted.

More specifically, as shown in FIGS. 3 and 4, the bracket 10 is made of a steel plate member 20 obtained by press-forming a suitable steel plate such as a SAPH structural steel plate into a predetermined shape. As shown in FIGS. 5 and 6, a composite structure is formed by assembling together a block member 22 which is a cast product made of a suitable aluminum alloy such as the ADC 12 subjected to T6 treatment.

Here, the steel plate member 20 has a cylindrical portion 24 formed by bending a central portion in the longitudinal direction of a strip-shaped steel plate into a substantially cylindrical shape. An opening 26 having a predetermined width extending over the entire length in the axial direction is formed at one location. Further, both circumferential end portions of the cylindrical portion 24, which are located so as to sandwich the opening portion 26 in the circumferential direction, are formed as curved portions 28 bent at an appropriate curvature toward the outer peripheral surface side of the cylindrical portion 24, respectively. As a result, a pair of flat plate-shaped mounting plate portions 30, 3 protruding outward in a substantially radial direction of the cylindrical portion 24 and opposed to each other in a circumferential direction of the cylindrical portion 24 at substantially constant intervals.
0 is formed integrally with the cylindrical portion 24 via the curved portion 28.

Although the distance between the opposed surfaces of the mounting plate portions 30 is not particularly limited, in the present embodiment, the opening of the cylindrical portion 24 is provided above the opening of the pocket portion of the mount body 12 described later. The size is set so that the part 26 is not located.

In each mounting plate portion 30, two mounting bolt insertion holes 32 provided on both sides in the width direction and two large and small positioning locking holes 34 are formed at corresponding positions. I have.

On the other hand, the block member 22 has a substantially thick rectangular plate shape as a whole, and its planar shape is
It has substantially the same shape as the mounting plate portion 30 of the steel plate member 20, and its cross-sectional shape is substantially the same as the space formed between the facing surfaces of the pair of mounting plate portions 30, 30 in the steel plate member 20. ing. And this block member 22
Is assembled to the steel plate member 20 by being sandwiched between the facing surfaces of the mounting plate portions 30, 30.

The block member 22 is formed with two mounting bolt insertion holes 36, 36 penetrating in the thickness direction, and these bolt insertion holes 36, 36 are assembled to the steel plate member 20. Under the condition, the bolt insertion hole 3 of the steel plate member 20
2, 32 are communicated with each other. Furthermore, the block member 22 is formed with two large and small positioning locking projections 38 projecting outward in the thickness direction, and these locking projections 38 are connected to the steel plate member 20. In the assembled state of the above, the locking holes 34 of the steel plate member 20,
34 are fitted and locked, respectively.
That is, by the locking mechanism of the locking projections 38, 38 to the locking holes 34, 34, the sliding direction (the direction along the overlapping surface) between the superposed surfaces of the mounting plate portions 30, 30 and the block member 22. The locking means for preventing the relative displacement in (1) is constituted.

Furthermore, the block member 22 is mounted on the steel plate member 20, and substantially the entire opposing surfaces of the mounting plate portions 30, 30 and the pair of curved portions 28, 28 in the steel plate member 20 are assembled.
Is also superimposed on the surface of the steel plate member 20 and the opening 2
The portion facing 6 extends in the circumferential direction with substantially the same curvature as the inner peripheral surface of the cylindrical portion 24, and forms a connecting surface 40 that connects the inner peripheral surface of the cylindrical portion 24 at the opening 26.

In the present embodiment, the block member 22 is sandwiched between the mounting plate portions 30 of the steel plate member 20 and assembled as described above, so that the cylindrical portion 24 of the steel plate member 20 and the block member 22 are joined together. A cylindrical holding portion 14 is formed in cooperation with the connecting surface 40, and the mounting plate portions 30, 30 of the steel plate member 20 and the block member 22 cooperate with each other to form a radial direction from the holding portion 14. The mounting portion 16 protruding outward is formed in a thick plate shape as a whole. Although not shown, the bracket 10 according to the present embodiment includes a bolt insertion hole 32,
An attachment bolt inserted through 36 is fixed to one member that is vibration-proof connected. Also,
The tightening force of the mounting bolt is applied to the mounting portion 16 as the mounting plate portions 30 and 30 and the block member 22 as a tightening force in the overlapping direction. The block members 22 are firmly fixed to each other. Before the fixing with the mounting bolts, if necessary, the mounting plate portions 30 and 30 and the block member 22 may be fixed with an appropriate adhesive or welding.

On the other hand, as shown in FIGS. 1 and 2, the mount main body 12 mounted on the bracket 10 is disposed radially outward of the small-diameter cylindrical inner fitting 42.
A large-diameter cylindrical metal sleeve 44 is disposed at a predetermined distance and eccentric by a predetermined amount, and a thick-walled cylindrical shape is formed between the inner cylindrical fitting 42 and the radially opposed surface of the metal sleeve 44. Is formed as an integral vulcanized molded product provided with a rubber elastic body 46 having In other words, the mount main body 12 is formed of an integrally vulcanized molded product in which the inner cylindrical fitting 42 is bonded to the inner peripheral surface of the rubber elastic body 46 and the metal sleeve 44 is bonded to the outer peripheral surface by vulcanization. .

In the metal sleeve 44, a first opening window 48 and a second opening window 50 are formed at positions opposed to each other on both sides in the eccentric direction with respect to the inner cylindrical fitting 42, and a rubber elastic body is provided. 46, a first pocket portion 52 and a second pocket portion 54 are formed so as to open on both sides in the eccentric direction of the inner cylinder fitting 42 and the metal sleeve 44, and the first pocket portion 52 is formed in the first pocket portion 52. Through the opening window 48, the second pocket portion 5
4 are opened to the outer peripheral surface of the metal sleeve 44 through the second opening windows 50, respectively. Note that a seal rubber layer 56 is provided on substantially the entire outer peripheral surface of the metal sleeve 44.

Further, the first pocket portion 52 is externally fitted and fixed to the inner cylinder fitting 42 and protrudes from the inner cylinder fitting 42 side.
An action member 58 having an umbrella-shaped tip is provided. The second pocket portion 54 has a bottom wall portion thinned by a slit 60 extending through the rubber elastic body 46 in the axial direction to form a flexible film 62 that is easily deformed. Furthermore, the seal rubber layer 56 that covers the outer peripheral surface of the metal sleeve 44 has a circumferential surface extending between the first pocket portion 52 and the second pocket portion 54 so as to straddle one circumferential edge thereof. A groove 64 extending in the direction is formed.

Then, the mount body 1 having such a structure is provided.
2 is, for example, after assembling the block member 22 to the steel plate member 20 to produce the bracket 10,
The block body is fixed to the steel plate member 20 by press-fitting and fixing the mount main body 12 to the holding portion 14 or after the mount main body 12 is inserted into the cylindrical portion 24 formed in the steel plate member 20. By fabricating the bracket 10 by assembling the bracket 22, the bracket 10 is fixedly assembled to the bracket 10 having the above-described structure.

Also, the mounting body 12 is
The openings of the first pocket portion 52, the second pocket portion 54, and the concave groove 64 formed in the mount body 12 are covered by the holding portions 14 of the bracket 10 in a fluid-tight manner. . Thus, the pressure receiving chamber 66 in which a part of the wall is formed of the rubber elastic body 46 and the internal pressure fluctuates at the time of vibration input, and the part of the wall which is formed of the flexible film 62, And an orifice passage 70 for interconnecting the pressure receiving chamber 66 and the equilibrium chamber 68 is formed. Further, the pressure receiving chamber 66, the balance chamber 68, and the orifice passage 7
In 0, an incompressible fluid such as water, an alkylene glycol, a polyalkylene glycol, or a silicone oil is sealed. The incompressible fluid can be advantageously sealed by, for example, attaching the mount body 12 to the bracket 10 in a fluid.

In the cylindrical mount having such a structure, the mounting portion 16 of the bracket 10 and the inner cylindrical fitting 4 of the mount body 12 are connected to one of the members to be connected in vibration isolation.
2 are attached to each other, so that the inner cylinder fitting 4
In a state where the main support load and the vibration-proof load are input in the eccentric direction of the metal sleeve 44 and the metal sleeve 44, the vibration-proof connection is interposed between the members to be vibration-isolated. Then, when vibration is input in such a mounted state, a fluid flow is generated between the pressure receiving chamber 66 and the equilibrium chamber 68 through the orifice passage 70. Based on the action, a predetermined vibration damping effect can be exerted. In the present embodiment, the pressure receiving chamber 66 is narrowed by the action member 58, so that the pressure receiving chamber 66 has an annular constricted flow path 72.
Are formed, and a predetermined vibration damping effect is also exerted by the flow action of the fluid caused to flow through the constricted flow path 72.

In this cylindrical mount, the bracket 10 has a composite structure composed of a steel plate member 20 and a block member 22 made of an aluminum alloy.
And the mounting portion 16 that requires rigidity or strength is formed with a superposed structure in which the block member 22 is sandwiched between the steel plate members 20.

As a result, in the holding portion 14, excellent assemblability and fluid tightness of the mount main body 12 can be obtained by advantageously securing dimensional accuracy, and the holding member 14 can be made compact while suppressing thickening of the member. The required strength can be ensured by the size. Further, the mounting portion 16 has a rigidity and load-bearing strength while avoiding a substantial increase in weight due to a remarkable weight increase and a projection of a reinforcing rib outward. Can be advantageously secured.

Moreover, in the bracket 10, the dimensional accuracy required for the holding portion 14 can be advantageously and easily achieved by the steel plate member 20 which is a press-formed product, and the block member 2 which is an aluminum cast product.
Since 2 is small and has a simple shape, excellent manufacturability and cost performance are exhibited.

In short, the bracket 10 having the above-described structure is characterized by the fact that it is easy to form and excellent in dimensional accuracy, but it is difficult to increase the thickness in terms of weight and formability, etc. The steel plate member 20 which is a product and the block member 22 which is a cast product of an aluminum alloy, which is characterized in that it is lightweight and easy to increase the thickness, but it is difficult to obtain high dimensional accuracy, have a specific combination structure. This allows us to actively use the advantages of both, complementing the deficiencies,
As a result, excellent load-bearing performance can be advantageously achieved with good manufacturability while securing required dimensional accuracy and compact size.

In the bracket 10 of the present embodiment, the relative displacement between the mounting plate 30 and the block member 22 is
Since the structure is prevented by the simple locking structure, the rigidity or strength of the mounting portion 16 can be more advantageously secured by the simple structure.

Further, in the bracket 10 of this embodiment, since the block member 22 is clamped and fastened between the mounting plates 30, 30, the hardness of the aluminum alloy block member 22 is reduced. It is also possible to set the hardness to be lower than the hardness of the steel plate member 20 so that the block member 22 can be deformed by the action of the clamping force so as to conform to the surface shape of the mounting plate portion 30. As a result, the block member 22 is more advantageously brought into close contact with the mounting plate portion 30, so that the rigidity or strength of the mounting portion 16 can be more effectively and stably obtained.

Moreover, in the bracket 10 of the present embodiment, the opening 26 of the cylindrical portion 24 in the steel plate member 20 is formed.
In addition to having the connecting surface 40 smoothly connected to the inner peripheral surface of the cylindrical portion 24, the block member 22 facing the inner peripheral surface of the cylindrical portion 24 of the steel plate member 20 The boundary between the block member 22 and the connection surface 40 is pressed against the outer peripheral surface of the seal rubber layer 56 of the mount main body 12, and the seal rubber layer 56 penetrates into the boundary due to elastic deformation, so that the gap at the boundary is advantageously reduced. Since it is made to disappear, the occurrence of problems such as rust due to the entry of water or the like into such gaps is effectively prevented.

Further, the bracket 10 of the present embodiment
Since the pockets 52, 54 of the mount main body 12 are directly covered by the holding brackets 14, a special member for covering the pockets 52, 54 in the mount main body 12 is not required.
With a small number of parts and excellent manufacturability, a fluid-filled cylindrical mount can be obtained.

Further, in the bracket 10 of the present embodiment,
By pressing the cylindrical portion 24 directly against the outer peripheral surface of the seal rubber layer 56 around the openings of the first and second pocket portions 52 and 54 and the concave groove 64, the pressure receiving chamber 6 is formed.
6, since the equilibrium chamber 68 and the orifice passage 70 are fluid-tightly sealed to the external space,
Fluid leakage through the butted portion of the block member 22 with the zero is prevented, and excellent sealing performance can be stably exhibited.

Next, FIG. 7 shows a cylindrical mounting bracket 76 as another embodiment of the present invention.
The bracket 76 is shown as a cylindrical mount on which a mount main body 78 is mounted, as in FIG. 1 showing the first embodiment. In FIG. 7, the same reference numerals as those in the first embodiment denote members and parts having the same structure as the cylindrical mount.

That is, like the bracket (10) according to the first embodiment, the bracket 76 is formed by the steel plate member 20 which is a press-formed product of a steel plate and the block member 22 which is a cast product made of an aluminum alloy. The holding portion 14 has a large diameter cylindrical shape, and the holding portion 14
And has a mounting portion 16 protruding on the outer peripheral surface of the rim. Further, the steel plate member 20 has a cylindrical portion 24 having an opening 26 with a predetermined width at one location on the periphery, and both circumferential edges of the cylindrical portion 24 are bent on the outer peripheral surface to form curved portions 28 and 2.
And a pair of mounting plate portions 30, 30 protruding outward through the pair 8. On the other hand, the block member 22 is sandwiched between the opposing surfaces of the mounting plate portions 30, 30, and is assembled so as to fill the space between the mounting plate portions 30 and close the opening 26. Thereby, like the bracket (10) as the first embodiment, the steel plate member 2
In cooperation with the cylindrical portion 24 and the connecting surface 40 of the block member 22 facing the opening 26 of the cylindrical portion 24,
The holding portion 14 having a cylindrical shape is formed, and the mounting portions 16 projecting radially outward from the holding portion 14 in cooperation with the mounting plate portions 30 and 30 of the steel plate member 20 and the block member 22. Are formed.

In particular, in the bracket 76 of the present embodiment, the pair of mounting plate portions 3 formed on the steel plate member 20 are formed.
A pair of plate-like legs 80, 80 are provided in which the protruding tip portions of 0, 30 are bent to extend and extend in a direction away from each other. Each plate-like leg 80 extends along the bending surface.
A pair of thick plate-like reinforcing plates 8 superposed on the outer surface of
2, 82 are integrally formed. Further, fixing bolts 84 are inserted and fixed in the thickness direction at the overlapping portions of the plate-like legs 80, 80 and the reinforcing plate portions 82, 82, respectively. 8
0, 80, the reinforcing plate portions 82, 82, and furthermore, the steel plate member 20 and the block member 22 are firmly fixed to each other. In addition, a plurality of mounting bolt insertion holes 32 for mounting the bracket 10 to one member to be vibration-isolated and connected is formed in a portion where the plate-like leg portion 80 and the reinforcing plate portion 82 overlap.

On the other hand, the mount main body 78 employed in the present embodiment has an inner cylindrical fitting 84 and an outer cylindrical fitting 86 which are disposed at a predetermined distance from each other in the radial direction and are interposed therebetween. It is composed of an integrally vulcanized molded product connected by a thick cylindrical rubber elastic body 88. The rubber elastic body 88 of the mount body 78 is provided with a pair of slits 100, 100 located on both sides of the inner cylinder fitting 84 in the main vibration load input direction (vertical direction in FIG. 7). , The spring constant is adjusted.

The mount main body 78 is fixed to the holding portion 14 of the bracket 76 by press-fitting or the like, so that the bracket 7 is fixed.
6 is fixedly assembled. In such a cylindrical mount of the present embodiment, the mount body 78
Is attached to the bracket 76 by direct contact between the metal and the metal without the intervention of a seal rubber layer or the like, so that a large fixing force can be stably obtained.

In the bracket 76 of the present embodiment having the above-described structure, similarly to the bracket (10) of the first embodiment, the holding portion 14 is formed mainly of the steel plate member 20 and is attached. The portion 16 is formed with an overlapping structure in which the block member 22 is sandwiched between the steel plate members 20, thereby achieving excellent load bearing performance while maintaining the required dimensional accuracy and compact size. This can be advantageously obtained under manufacturability, and all the same effects as those of the bracket (10) in the first embodiment can be effectively exerted.

In addition, the bracket 76 of the present embodiment
An attachment portion for one member to be vibration-isolated is formed by reinforcing plate-like legs 80, 80 formed integrally with the steel plate member 20 with reinforcing plate portions 82, 82 formed integrally with the block member 22. Therefore, the mounting portion can be easily formed with excellent strength without increasing the number of parts or complicating the structure, and the bracket (10) according to the first embodiment can be formed. Advantageously, it is possible to cope with a mounting portion having a shape different from that which is adapted.

The embodiments of the present invention have been described above in detail, but these are literal examples, and the present invention
It should not be construed that the present invention is limited to the specific structure shown as such an embodiment.

For example, the specific structure of the mount main body mounted on the holding portion of the bracket can be appropriately changed according to the required vibration isolation characteristics and the like. In any case where a body is employed, a bracket structured according to the invention may be advantageously applied.

In the case where a mount body having a fluid-filled structure is adopted, the mount body 12 in the first embodiment can be non-compressed by externally fitting a metal sleeve 44 to the metal sleeve 44 and fixing it. Alternatively, the outer fluid fitting may be fitted and fixed to the holding portion 14 of the bracket 10 by adopting a structure in which the filling of the sexual fluid is completed.

In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, various changes, modifications, improvements, and the like can be made, and unless such embodiments depart from the spirit of the present invention.
It goes without saying that both are included in the scope of the present invention.

[0065]

As is apparent from the above description, in the cylindrical mounting bracket having the structure according to any one of the first to third aspects of the present invention, each of the steel plate member and the aluminum alloy block is provided. The adoption of a specific composite structure combining components and components allows the required dimensional accuracy and strength to be achieved in the holding part to which the mount body is fitted and fixed, accompanied by thickening of components and reduction in manufacturability. Not
Advantageously, the rigidity or load-bearing strength of the mounting portion attached to one of the members connected to the vibration-proof connection can be improved with a simple and compact structure and excellent production without a significant increase in weight. It can be obtained very efficiently with the property.

Further, in the cylindrical mount having the structure according to the fourth or fifth aspect of the present invention, the bracket having the structure according to the first aspect of the present invention has a large rigidity. In addition, the load bearing strength is exhibited, and the sealing structure of the sealed fluid is constituted by using the bracket, so that the number of parts can be reduced and the structure can be advantageously simplified.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a cylindrical mount according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the cylindrical mount shown in FIG.

FIG. 3 is a plan view showing a steel plate member constituting the cylindrical mount shown in FIG. 1;

FIG. 4 is a front view of the steel plate member shown in FIG. 3;

FIG. 5 is a plan view showing a block member constituting the cylindrical mount shown in FIG.

FIG. 6 is a front view of the block member shown in FIG. 5;

FIG. 7 is a cross-sectional view showing a cylindrical mount according to a second embodiment of the present invention.

[Explanation of symbols]

 10, 76 Bracket 12, 78 Mount body 14 Holding part 16 Mounting part 20 Steel plate member 22 Block member 24 Cylindrical part 26 Opening part 28 Curved part 30 Mounting plate part

Claims (5)

[Claims] A cylindrical mounting portion to which a cylindrical mount body is fitted and fixed, and a mounting portion protruding from an outer peripheral surface of the holding portion and attached to one member which is vibration-proof connected. A cylindrical mounting bracket, comprising: an opening and a tubular steel plate member provided with an opening extending in the axial direction at at least one location on a circumference; A pair of mounting plate portions which are curved or bent toward the outer peripheral surface side from the edge portion and project on the outer peripheral surface and are opposed to each other at a predetermined distance in the circumferential direction are integrally formed, and the mounting plate portions are opposed to each other. An aluminum alloy block member is sandwiched between the surfaces, and is closely adhered and fixed to the opposing surfaces of the two mounting plate portions, so that the block member faces the opening of the steel plate member so that the cylindrical holding portion is formed. Together with Cylindrical mounting bracket, characterized by being configured the mounting portion has superimposed a structure of serial pair of attaching plates and the block member. 2. The block member is tightly fixed to the pair of mounting plate portions by fastening the pair of mounting plate portions to each other with bolts facing each other across the block member. Item 2. A cylindrical mounting bracket according to Item 1. 3. The cylinder according to claim 1, wherein a locking means is provided between the pair of mounting plate portions and the block member to regulate a relative displacement in a sliding direction along an overlapping surface. Type mounting bracket. 4. A cylindrical mount main body provided with a pocket portion opening on the outer peripheral surface is assembled to the cylindrical mount bracket according to claim 1, and the opening of the pocket portion in the cylindrical mount main body is provided. However, by being directly and fluid-tightly covered with the holding portion of the cylindrical mounting bracket, a fluid chamber is formed in which an incompressible fluid is sealed and a fluid flow is generated at the time of vibration input. Cylindrical mount. 5. An outer peripheral surface of the cylindrical mount main body is formed by directly pressing a peripheral edge of an opening of the pocket portion in the cylindrical mount main body against a steel plate member constituting the holding portion. 5. The cylindrical mount according to claim 4, wherein a portion between the opening of the pocket portion and the block member is fluid-tightly sealed.