JP2014126064A - Anti-vibration unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-vibration unit that can reduce parts count and man-hours in the production.SOLUTION: An upper surface arrangement part 13 connected with a central member 12 is disposed on the upper surface of a fixing member 31 of a second bracket 30, and a side surface arrangement part 14a of a mounting member 11 (caulking coupling member) in which one end side is connected with the upper surface arrangement part 13 is disposed on the side surface of the fixing member 31. A lower surface arrangement part 14b folded from the side surface arrangement part 14a toward the lower surface of the fixing member 31 is crimped to the fixing member 31, so that parts count can be reduced in comparison with the case when fastening and fixing an anti-vibration device to a second bracket 30 using a bolt, as much as the bolt can be omitted. Furthermore, the work of forming a female screw part and protecting by a masking bolt can be omitted because the bolt can be omitted.

Description

  The present invention relates to a vibration proof unit, and more particularly to a vibration proof unit capable of reducing the number of components and the number of work steps during manufacturing.

  An anti-vibration device (anti-vibration unit) is provided between an automobile body and an engine as a vibration source in order to suppress transmission of vibration to the vehicle body side. For example, Patent Document 1 discloses a vibration isolation unit shown in FIGS. 14 and 15. Hereinafter, the image stabilization unit disclosed in Patent Document 1 will be described with reference to FIGS. 14 and 15. 14A is a plan view of the vibration isolation unit, FIG. 14B is a front view of the vibration isolation unit viewed from the direction of arrow XIV in FIG. 14A, and FIG. 15 is FIG. It is sectional drawing of the vibration proof unit in the XV-XV line | wire in.

  The anti-vibration unit 901 shown in FIGS. 14A and 14B supports and fixes an automobile engine (not shown) while preventing the vibration of the engine from being transmitted to the vehicle body (not shown). The anti-vibration device 910 in which the boss member 911 and the outer cylinder member 912 are connected by an anti-vibration base 913 made of a rubber-like elastic body, and the outer cylinder member 912 of the anti-vibration device 910 are held. The first bracket 20 attached to the engine side and the second bracket 930 attached to the vehicle body side while the boss member 911 of the vibration isolator 910 is fixed.

  The vibration isolator 910 is disposed in a vertical posture with the axial direction aligned with the vertical direction, and is disposed in an inverted state with the boss member 911 side facing downward, and is surrounded by the second bracket 930. The first bracket 20 extends horizontally from the side of the vibration isolator 910 outward in the radial direction (perpendicular to the axis, upward in FIG. 14A).

  The first bracket 20 mainly includes a flat plate-like main body portion 21 and a block-like extension portion 22 extending obliquely from one side (right side in FIG. 14A) of the main body portion 21. ing. Mounting holes h <b> 1 are formed in the other side of the main body 21 (left side in FIG. 14A) and both ends of the extending portion 22. By screwing the bolt inserted into the mounting hole h1 into the engine side, the lower surface side (FIG. 14 (a) back side of the paper surface) becomes the mounting surface and is fastened and fixed to the engine side.

  The second bracket 930 is a member interposed between the vibration isolator 910 and the vehicle body side. The second bracket 930 is a fixing member 931 to which the boss member 911 of the vibration isolator 910 is fixed, and upward from both sides of the fixing member 931. A pair of standing members 932 that are erected toward the side and are arranged to face each other with the vibration isolator 910 interposed therebetween, and standing tips of the pair of standing members 932 are connected to each other and the fixing member 931 is sandwiched with the vibration isolator 910 interposed therebetween. And a connecting member 933 arranged opposite to each other, and these members 931 to 933 are integrally formed in a front view frame shape.

  The second bracket 930 has mounting holes h2 on both sides, and is fastened and fixed to the vehicle body side by bolts B1 (see FIG. 15) inserted through the mounting holes h2. Further, a stopper rubber SG is attached to the vibration isolator 910 and the first bracket 20, and the upper surface side of the vibration isolator 910 and the outer peripheral side of the main body portion 21 of the first bracket 20 are covered with the stopper rubber SG.

  As shown in FIG. 15, the vibration isolator 910 includes a boss member 911 that is attached to the vehicle body side via the second bracket 930, and a cylindrical outer cylinder member 912 that is attached to the engine side via the first bracket 20. These members 911 and 912 are connected to each other and a vibration-proof base 913 made of a rubber-like elastic body is mainly provided.

  The boss member 911 is formed in a substantially truncated conical shape with a constricted top section symmetrical about the axis O, and has a female screw portion 911a in which a female screw is threaded on the inner peripheral surface of a hole provided along the axis O. It is formed. The outer cylinder member 912 is formed in a cylindrical shape having upper and lower ends opened from a steel material, and is coaxially disposed above the boss member 911. The vibration isolator 910 is fastened and fixed to the second bracket 930 by screwing the bolt B inserted into the bolt insertion hole 931a of the second bracket 930 into the female thread portion 911a of the boss member 911.

  The anti-vibration base 913 is formed from a rubber-like elastic body and has a substantially conical truncated conical shape with a constricted bottom around the axis O, and is vulcanized and bonded between the outer surface of the boss member 911 and the inner wall surface of the outer cylindrical member 912. Is done. Inside the outer cylinder member 912, a diaphragm 914, a partition member 915, and an elastic partition film 916 are disposed. The diaphragm 914 is formed from a rubber-like elastic body into a rubber film shape having a partial spherical shape, and is attached to the upper end side of the outer cylinder member 912 in a close contact (watertight) state. As a result, a liquid sealing chamber in which liquid is sealed is formed between the lower surface side of the diaphragm 914 and the upper surface side of the vibration isolation base 913.

JP 2009-14080 A

  However, in the above-described technique, the vibration isolator is fixed to the second bracket using a bolt, so the number of parts increases by the amount of the bolt. Moreover, since it is necessary to form an internal thread part in a boss | hub member, it causes the increase in the manufacturing man-hour at the time of manufacture. Furthermore, when the boss member is subjected to chemical conversion, it is necessary to protect the female screw portion with a masking bolt, which increases the number of man-hours for manufacturing due to the attachment / detachment work.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vibration isolation unit that can reduce the number of parts and the number of work steps during manufacturing.

Means for Solving the Problems and Effects of the Invention

  According to the vibration isolating unit of claim 1, the cylindrical outer cylinder member, the central member disposed coaxially below the outer cylindrical member, and the central member and the outer cylindrical member are connected and rubber-like elasticity is connected. An anti-vibration device having an anti-vibration base composed of a body is held by a first bracket attached to the vibration source side by press-fitting an outer cylinder member in the axial direction. Further, a fixing member to which the center member of the vibration isolator is fixed, a pair of standing members that are erected upward from both sides of the fixing member and are opposed to each other with the vibration isolating base interposed therebetween, and a pair of standing members The vibration isolator is attached to the vehicle body via a second bracket having a connecting member that is connected to the fixed member with the vibration isolating base interposed between the standing tips.

  A caulking coupling member is connected to the central member of the vibration isolator, and a predetermined portion of the caulking coupling member is crimped to the fixing member, whereby the central member of the vibration isolating device is fixed to the fixing member of the second bracket. Therefore, compared with the case where the vibration isolator is fastened and fixed to the second bracket using the bolt, there is an effect that the number of parts can be reduced by the amount that the bolt can be omitted. Further, if the bolt can be omitted in this way, it is not necessary to form the female thread portion in the vibration isolator, and therefore, there is an effect that the work man-hour at the time of manufacture can be reduced. Furthermore, when chemical conversion treatment is applied to the vibration isolator, there is no need to protect the female screw with a masking bolt, so the work of attaching and detaching the masking bolt is not required, and the number of man-hours required for manufacturing is reduced accordingly. There is an effect that can.

  According to the vibration isolating unit of claim 2, the upper surface arrangement portion connected to the central member is arranged on the upper surface of the fixing member of the second bracket, and the side arrangement portion of the caulking attachment member whose one end side is connected to the upper surface arrangement portion. However, the other end side is bent from the upper surface of the fixing member toward the side surface and disposed on the side surface of the fixing member. Since the lower surface arrangement part bent toward the lower surface of the fixing member from the side surface arrangement part is crimped to the fixing member, it is opposite to the side surface of the fixing member on which the side surface arrangement part is arranged in the use state of the vibration isolation unit. The displacement of the central member toward the side surface on the side is regulated by the side surface arrangement portion of the caulking attachment portion. Since the center member can be positioned by the side surface arrangement portion, in addition to the effect of the first aspect, the center member of the vibration isolator can be maintained in a state of being fixed to the fixing member of the second bracket.

  According to the vibration isolating unit of the third aspect, in the vibration isolating apparatus, the shaft-shaped shaft portion extends from the center member to the upper surface arrangement portion. In the second bracket, a groove portion is recessed in the upper surface of the fixing member, the groove portion opens in a side surface of the fixing member, and an upper surface arrangement portion is disposed in the bottom portion. A protruding portion is formed to protrude from both sides of the groove portion above the bottom portion, and a space having a cross-sectional shape through which at least the shaft portion can pass is provided. Since the upper surface of the overhanging portion is pressed against the lower surface of the vibration isolating base, the relative displacement of the vibration isolating device relative to the second bracket can be restricted. As a result, in addition to the effect of the second aspect, there is an effect that the vibration isolating performance by the vibration isolator can be secured.

  According to the vibration isolating unit of claim 4, the second bracket has one opening of the groove portion formed on the side surface of the fixing member on which the side surface arranging portion of the caulking coupling member is disposed, and the groove portion is formed on the opposite side surface. A wall for closing the other opening is formed. Therefore, when the upper surface placement portion of the vibration isolator is inserted from one opening of the groove portion of the second bracket, insertion of the upper surface placement portion is restricted by the upper surface placement portion abutting against the wall portion. Since the vibration isolator can be positioned with respect to the second bracket by the wall portion, in addition to the effect of the third aspect, the assembly process of the anti-vibration unit can be simplified and the insertion position of the anti-vibration device relative to the second bracket can be reduced. This has the effect of suppressing the variation and improving the position accuracy of the insertion position.

  According to the vibration isolating unit of the fifth aspect, the side facing portion of the caulking coupling member is bent from the lower surface arrangement portion or the upper surface arrangement portion toward the side surface of the fixing member. Since the side surface facing portion faces the side surface arrangement portion, in addition to the effect of any one of claims 2 to 4, there is an effect that it is possible to restrict relative movement of the vibration isolator in the direction perpendicular to the axis with respect to the second bracket. . As a result, there is an effect that the state in which the center member of the vibration isolator is fixed to the fixing member of the second bracket can be firmly maintained.

  According to the vibration isolating unit of claim 6, the upper surface arrangement portion, the side surface arrangement portion, and the lower surface arrangement portion are covered with the rubber film formed integrally with the rubber-like elastic body constituting the vibration isolation base. In addition to the effect of any one of claims 2 to 5, there is an effect that the coating of the upper surface arrangement portion, the side surface arrangement portion, and the lower surface arrangement portion can be made unnecessary. In addition, since the upper surface arrangement portion, the side surface arrangement portion, and the lower surface arrangement portion and the second bracket are in contact with each other via a rubber film, even if the attachment member and the second bracket are made of different metals, the attachment member is caused by electrolytic corrosion. And the second bracket can be prevented from corroding.

  In addition, the required accuracy of the sealing property of the vulcanization mold used when manufacturing the vibration isolator can be relaxed compared to the case where the rubber film is not formed on the upper surface arrangement portion, the side surface arrangement portion, and the lower surface arrangement portion. Therefore, the production cost can be reduced accordingly. Furthermore, compared to the case where a rubber film is not formed on the upper surface arrangement portion, the side surface arrangement portion, and the lower surface arrangement portion, the work for removing the rubber burrs attached to the upper surface arrangement portion and the like can be omitted, so the number of work steps can be reduced. There is an effect that can be achieved.

  According to the vibration isolating unit of claim 7, since the central member is formed in a bottomed cylindrical shape, compared with the case where the central member (boss member) formed in a solid shape is used, In addition to any of the effects of 6, there is an effect of reducing the weight of the vibration isolator. Further, by forming the central member integrally with the attachment member, there is an effect that the number of parts can be reduced as compared with the case where the central member and the attachment member are separate members.

It is a perspective view from the back side of the 1st bracket and vibration isolator which comprise the vibration isolator unit in 1st Embodiment of this invention. It is a perspective view of an attachment member. It is a perspective view from the back side of the 2nd bracket. It is a rear view of a vibration isolator unit. It is sectional drawing of the vibration isolator unit in the VV line of FIG. It is a perspective view from the back side of the 1st bracket and vibration isolator which comprise the vibration isolator unit in 2nd Embodiment. It is a rear view of a vibration isolator unit. It is sectional drawing of the vibration isolator unit in the VIII-VIII line of FIG. It is a perspective view from the back side of the 1st bracket and vibration isolator which comprise the vibration isolator unit in 3rd Embodiment. It is a perspective view from the back side of the 1st bracket and vibration isolator which comprise the vibration isolator unit in 4th Embodiment. It is a perspective view from the back side of the 2nd bracket. It is sectional drawing of an anti-vibration unit. It is sectional drawing of the vibration proof unit in 5th Embodiment. (A) is a top view of the conventional vibration proof unit, (b) is a front view of the vibration proof unit seen from the arrow XIV direction of Fig.14 (a). It is sectional drawing of the vibration isolator unit in the XV-XV line | wire of Fig.14 (a).

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, a first embodiment will be described with reference to FIGS. FIG. 1 is a perspective view from the back side of the first bracket 20 and the vibration isolator 10 constituting the vibration isolator unit 1 according to the first embodiment of the present invention. In addition, about the part same as the image stabilization unit 901 demonstrated in background art (refer FIG.14 and FIG.15), the same code | symbol is attached | subjected and the following description is abbreviate | omitted. The anti-vibration device 10 constituting the anti-vibration unit 1 is fixed to the second bracket 20 by an attachment member 11 (caulking coupling member).

  The attachment member 11 (caulking coupling member) will be described with reference to FIG. FIG. 2 is a perspective view of the mounting member 11. The attachment member 11 is a member formed of a metal plate-like member, and a predetermined portion is pressure-bonded to the fixing member 31 of the second bracket 30. The attachment member 11 has a substantially cylindrical center member 12 formed in a bottomed cylindrical shape and extending in the axial direction, and a flat plate-shaped rectangular upper surface extending around the opening end perpendicular to the axis of the center member 12. It is provided with a disposing portion 13 and a flat and rectangular bent curved surface portion 14 that is substantially orthogonal to the upper surface disposing portion 13 by being bent in the axial direction via the bent portion 13a, and these are metal plate-like members It is integrally formed by plastic working. In the present embodiment, the attachment member 11 is made of a steel material.

  The center member 12 is a portion where the vibration-proof base 16 (see FIG. 5) is vulcanized and bonded to the outer peripheral surface, and is formed so that the outer diameter increases as the upper surface arrangement portion 13 is approached along the axial direction. . The attachment member 11 is fixed to the vibration isolator 10 by the vulcanization bonding of the central member 12 to the vibration isolation base 16. The folding surface portion 14 is a portion that is crimped to the second bracket 30 and is bent in a direction perpendicular to the axis with a side surface arrangement portion 14a that is disposed on a side surface of the fixing member 31 of the second bracket 30 described later. And a lower surface arrangement portion 14 b disposed on the lower surface of the fixing member 31.

  Next, the second bracket 30 will be described with reference to FIG. The second bracket 30 is a member interposed between the vibration isolator 10 and the vehicle body side, and includes a fixing member 31 to which the mounting member 11 of the vibration isolator 10 is fixed, and both sides of the fixing member 31 (see FIG. 3) and a pair of standing members 32 which are arranged to stand upward from the left side and the right side) and are opposed to each other with the vibration isolator 10 interposed therebetween, and the standing tips of the pair of standing members 32 are connected to each other. 10, a fixing member 31 and a connection member 33 arranged to face each other, and these members 31 to 33 are integrally formed from an aluminum alloy in a frame shape in a front view.

  Note that the opposing surface (inner wall surface) of the standing member 32 is formed as a flat surface opposingly arranged in parallel with a predetermined interval, and the lower surface (inner wall surface) of the connecting member 33 is the inner wall surface of the standing member 32. Are formed as flat surfaces that are perpendicular to the axis of the vibration isolator 10 (that is, perpendicular to the axis of the vibration isolator 10). Functions as a restricting stopper surface.

  The fixing member 31 includes a groove portion 34 that is recessed on the upper surface and opens on the side surface of the fixing member 31, and an overhang portion 35 that is formed to protrude from both sides of the groove portion 34 to above the bottom portion 34 a of the groove portion 34. . A space 36 with a predetermined interval is provided between the overhang portions 35. Further, the fixing member 31 is formed with a wall portion 37 that closes an opening on one side surface of the groove portion 34. The upper end of the wall portion 37 is located at the same height as the upper surface of the overhang portion 35.

  Here, the width (dimension in the left-right direction in FIG. 3) of the groove 34 is set slightly larger than the width (dimension in the X direction in FIG. 2) of the upper surface arrangement portion 13 of the mounting member 11. Further, the gap between the bottom 34 a of the groove 34 and the overhang 35 is set slightly larger than the thickness of the upper surface arrangement portion 13. The width of the space 36 (left and right dimensions in FIG. 3) is set to be slightly larger than the outer diameter of the central member 12 on the upper surface arrangement portion 13 side. Furthermore, the length from the one opening of the groove part 34 to the wall part 37 is set to be slightly larger than the length (dimension in the Y direction in FIG. 2) of the upper surface arrangement part 13.

  The fixing member 31 has the above-described mounting holes h2 formed at both ends in the plate thickness direction (vertical direction in FIG. 3), and by screwing the bolts inserted through the mounting holes h2 to the vehicle body side, The lower surface side (lower side in FIG. 3) serves as an attachment surface and is fastened and fixed to the vehicle body side. An escape portion 31a is formed on the lower surface of the fixing member 31 that is an attachment surface to the vehicle body side. The thickness of the fixing member 31 is set to be thin as much as the escape portion 31 a is formed, and when the second bracket 30 is fixed to the vehicle body side, a gap is formed between the vehicle body side and the fixing member 31.

  Next, the image stabilization unit 1 will be described with reference to FIGS. 4 and 5. 4 is a rear view of the image stabilization unit 1, and FIG. 5 is a cross-sectional view of the image stabilization unit 1 taken along line VV in FIG. 4 illustrates a state during the manufacture of the vibration isolation unit 1 before the lower surface arrangement portion 14b is crimped to the fixing member 31, and FIG. 5 illustrates the state after the lower surface arrangement portion 14b is crimped to the fixing member 31. The vibration isolator unit 1 is shown.

  First, the vibration isolator 10 will be described with reference to FIG. The vibration isolator 10 includes a center member 12 attached to the vehicle body via a second bracket 30 (see FIG. 3), a cylindrical outer cylinder member 15 attached to the engine via a first bracket 20, and the like. Both the members 12 and 15 are connected and a vibration-proof base 16 made of a rubber-like elastic body is mainly provided.

  The center member 12 is formed in a bottomed cylindrical shape with a narrowed top, and a tip portion 12a to which the vibration isolating base 16 is bonded, and a shaft-like shaft portion 12b extending from the tip portion 12a to the upper surface arrangement portion 13. I have. The tip portion 12a and the shaft portion 12b are formed symmetrically around the axis O.

  The outer cylinder member 15 is formed in a cylindrical shape having upper and lower ends (upper side and lower side in FIG. 5) opened from a steel material, and is coaxially disposed above the central member 12 (upper side in FIG. 5). The outer cylinder member 15 is configured to have a step, a large diameter cylindrical portion below the step (lower side in FIG. 5), and a small diameter cylindrical portion above the step (upper side in FIG. 5). Are arranged, and the large-diameter cylindrical portion is press-fitted and held in the first bracket 20 in the direction of the axis O.

  The anti-vibration base 16 is formed from a rubber-like elastic body in a substantially conical truncated conical shape with a constricted bottom around the axis O, and between the outer surface at the distal end portion 12 a of the center member 12 and the inner wall surface of the outer cylinder member 15. Is vulcanized and bonded. Further, the anti-vibration base 16 is connected to a rubber film 16a made of a rubber-like elastic body and covering the outer surface of the shaft portion 12b, the upper surface arrangement portion 13, and the folded curved surface portion 14. The outer diameter of the shaft portion 12b covered with the rubber film 16a is set to be approximately the same as the width of the space 36 between the overhang portions 35, and the width of the upper surface arrangement portion 13 covered with the rubber film 16a is: The width is set to be approximately the same as the width of the groove 34. Moreover, the thickness of the upper surface arrangement | positioning part 13 coat | covered with the rubber film 16a is set to the substantially the same magnitude | size as the space | interval of the bottom part 34a and the overhang | projection part 35. FIG.

  Inside the outer cylinder member 15, a diaphragm 17, a partition member 18, and an elastic partition film 19 are disposed. The diaphragm 17 is formed in a rubber film shape having a partial spherical shape from a rubber-like elastic body, and is attached to the upper end side (upper side in FIG. 5) of the outer cylinder member 15 in a close contact (watertight) state. As a result, a liquid sealing chamber in which liquid is sealed is formed between the lower surface side of the diaphragm 17 and the upper surface side of the vibration isolation base 16.

  An antifreezing liquid (not shown) such as ethylene glycol is sealed in the liquid sealing chamber. The partition member 18 is a member that partitions the liquid sealing chamber into a first liquid chamber on the vibration-isolating base 16 side and a second liquid chamber on the diaphragm side, and on the outer peripheral side thereof, the first liquid chamber, the second liquid chamber, An orifice channel that communicates with each other is formed. In addition, a pair of opposing walls each having a plurality of openings are disposed opposite to each other in the center of the partition member 18, and an elastic partition film 19 formed from a rubber-like elastic body into a disk shape is accommodated between the opposing walls. The

  Like the anti-vibration unit 1, the anti-vibration device 10 is placed upside down and the center member 12 is attached to the vehicle body side and the outer cylinder member 15 is attached to the vehicle body side, so that the vibration transmission path from the partition member 18 to the vehicle body side can be reduced. A part can be constituted by the anti-vibration substrate 16. Therefore, when the elastic partition film 19 collides with the opposing wall of the partition member 18 and the restricting plate vibrates, the vibration is transmitted to the vehicle body side, and the vibration isolating that constitutes a part of the vibration transmission path. Due to the vibration insulation effect of the base body 16, it is possible to reliably suppress the occurrence of abnormal noise.

  Next, a method for manufacturing the vibration isolator 10 will be described. The vibration isolator 10 is manufactured by first filling a rubber-like elastic body into a vulcanization mold (not shown) in which the attachment member 11 and the outer cylinder member 15 are installed, and the attachment member 11, the outer cylinder member 15, and the like. The molded body in which the gaps are connected by the anti-vibration base 16 is vulcanized. At the same time as the vibration-proof substrate 16 is vulcanized, a rubber film 16a made of a rubber-like elastic body is vulcanized and formed on the surface of the mounting member 11.

  Next, the partition member 18 and the diaphragm 17 are sequentially fitted into the molded body from the opening of the outer cylinder member 15, and the entire opening edge portion (the upper end of the small diameter cylinder portion) of the outer cylinder member 15 is radially reduced. (Drawing). Thereby, the manufacture of the vibration isolator 10 is completed (vibration isolator forming step). The partition member 18 is fitted into the molded body in a state where the elastic partition film 19 is accommodated between the pair of opposing walls.

  Next, a method for manufacturing the vibration isolation unit 1 will be described. First, the outer cylinder member 15 of the vibration isolator 10 is press-fitted into the press-fitting hole of the first bracket 20 in the direction of the axis O, and the outer cylinder member 15 of the vibration isolator 10 is held by the first bracket 20 (first bracket holding step). ). Next, after the stopper rubber SG is mounted from the upper end side (the upper side in FIG. 1) of the vibration isolator 10, the vibration isolator base 16 of the vibration isolator 10 and the stopper rubber SG mounted on the vibration isolator 10 are attached to the second bracket 30. Press fit into the opening.

  The axial length of the anti-vibration base 16 (the vertical length in FIG. 5) is such that the anti-vibration base 16 covers the upper surface of the overhanging portion 35 when the anti-vibration device 10 is press-fitted into the opening of the second bracket 30. The size to be pressed is set. That is, the vibration-proof base 16 is provided with an axial press-fitting allowance. The axial insertion allowance of the vibration isolator base 16 is such that the reaction force of the vibration isolator base 16 is generated in a state where the assumed maximum value of the vertical (axial) load is input to the vibration isolator 10. Set to

  When the vibration isolator 10 is press-fitted into the second bracket 30, the space between the overhanging portions 35 is simultaneously inserted while inserting the upper surface arrangement portion 13 of the vibration isolator 10 into the groove 34 (see FIG. 3) of the second bracket 30. The shaft portion 12 b is passed through 36. The upper surface arrangement portion 13 inserted into the groove portion 34 is restricted from being further inserted by the upper surface arrangement portion 13 abutting against the wall portion 37 or the folding surface portion 14 abutting against the side surface of the fixing member 31 (prevention). Shaking device insertion process).

  Next, the distal end side of the folding surface portion 14 of the attachment member 11 is bent toward the lower surface of the fixing member 31. The lower surface arrangement portion 14 b is arranged on the lower surface of the fixing member 31 by bending the distal end side of the folding surface portion 14. By attaching the lower surface arrangement portion 14b to the fixing member 31, the attachment member 11 is caulked and fixed (plastically bonded) to the fixing member 31 (fixing member pressing step). Thereby, the vibration isolator 10 is fixed with respect to the 2nd bracket 30, and manufacture of the vibration isolator unit 1 is completed.

  In addition, the escape part 31a is formed in the lower surface of the fixing member 31, and since the thickness of the fixing member 31 is set thin by the escape part 31a, the folding surface part 14 is bent and the lower surface arrangement part 14b. Can be prevented from projecting from the mounting surface of the second bracket 30 on the vehicle body side.

  As described above, the vibration isolator unit 1 caulks and fixes the mounting member 11 of the vibration isolator 10 to the fixing member 31 of the second bracket 30, so that the boss member 911 of the vibration isolator 910 (see FIG. 15) as in the conventional product. Compared with the case where the bolt B is fixed (fastened) to the fixing member 931 of the second bracket 930, the number of parts can be reduced by the amount that the bolt B can be omitted.

  If the bolt B can be omitted in this way, a female thread portion 911a for screwing the bolt B is formed in the boss member 911 of the vibration isolator 910 (that is, a hole is drilled and a female thread is threaded on the inner peripheral surface). Therefore, it is possible to reduce the number of man-hours for manufacturing. Further, when the mounting member 11 (see FIG. 2) of the vibration isolator 10 is subjected to chemical conversion in order to vulcanize and bond the vibration isolator base 16 shown in FIG. 5, a process of protecting the female screw portion with a masking bolt is performed. Since it is not necessary, the work of attaching and detaching the masking bolt is unnecessary, and the work man-hours during the production can be reduced accordingly. Moreover, since it is not necessary to prepare a masking bolt, the manufacturing cost can be reduced accordingly.

  Further, in the vibration isolator 10, a shaft-shaped shaft portion 12 b extends from the tip portion 12 a of the center member 12 to the upper surface arrangement portion 13. In the second bracket 30, a groove portion 34 is recessed on the upper surface of the fixing member 31, the groove portion 34 opens on the side surface of the fixing member 31, and the upper surface arrangement portion 13 is disposed on the bottom portion 34 a. A protruding portion 35 is formed to protrude from both sides of the groove portion 34 above the bottom portion 34, and a space 36 having a cross-sectional shape through which the shaft portion 12b can pass is provided. Since the outer diameter of the shaft portion 12b covered with the rubber film 16a is set to be approximately the same as the width of the space 36 between the overhang portions 35, the shaft portion 12b is fitted between the overhang portions 35. The

  In addition, the width of the upper surface arrangement portion 13 covered with the rubber film 16a is set to be approximately the same as the width of the groove portion 34, and the thickness of the upper surface arrangement portion 13 covered with the rubber film 16a is equal to that of the bottom portion 34a. Since the gap is set to be approximately the same size as the gap with the overhang portion 35, the upper surface arrangement portion 13 is fitted into the groove portion 34. Thereby, the attachment member 11 can be inserted into the groove 34 formed in the fixing member 13 and can be fixed without rattling.

  Moreover, since the upper surface of the overhang | projection part 35 is pressed by the lower surface of the vibration isolator base | substrate 16, the downward relative displacement of the vibration isolator 10 with respect to the 2nd bracket 30 can be controlled. As a result, the anti-vibration performance by the anti-vibration device 10 can be ensured. Furthermore, the axial insertion allowance of the vibration isolating base 16 is such that a reaction force of the vibration isolating base 16 is generated in a state where the assumed maximum value of the vertical (axial) load is input to the vibration isolator 10. Since the size is set, the axial position of the vibration isolator 10 can be stabilized when the vibration isolator unit 1 is in use. As a result, the anti-vibration performance by the anti-vibration unit 1 can be ensured.

  The second bracket 30 has one opening of the groove 34 formed on the side surface of the fixing member 31 where the side surface arrangement portion 14a of the mounting member 11 is disposed, and the other opening of the groove portion 34 is closed on the opposite side surface. A wall portion 37 is formed. Therefore, when the upper surface arrangement portion 13 of the vibration isolator 10 is inserted from one opening of the groove portion 34 of the second bracket 30, the upper surface arrangement portion 13 abuts against the wall portion 37, thereby restricting insertion of the upper surface arrangement portion 13. Since the vibration isolator 10 can be positioned with respect to the second bracket 30 by the wall portion 37, the assembly process of the anti-vibration unit 1 can be simplified and the insertion position of the anti-vibration device 10 with respect to the second bracket 30 varies. It is possible to improve the position accuracy of the insertion position.

  Further, when the vibration isolator unit 1 is in use, the vibration isolator 10 against the second bracket 30 is caused by the upper surface arrangement portion 13 abutting against the wall portion 37 or the side surface arrangement portion 14 a abutting against the side surface of the fixing member 31. The relative displacement in the direction perpendicular to the axis can be regulated. Therefore, the input load in that direction can be countered. Therefore, the state in which the attachment member 11 is fixed to the fixing member 31 can be firmly maintained.

  Further, the shaft portion 12b, the upper surface arrangement portion 13, the side surface arrangement portion 14a, and the lower surface arrangement portion 14b are covered with a rubber film 16a formed integrally with a rubber-like elastic body constituting the vibration isolating base 16, so It is possible to dispense with the coating (such as rust prevention coating) of the member 11 (the shaft portion 12b, the upper surface arrangement portion 13, and the folded curved surface portion 14). Moreover, since the attachment member 11 made of steel and the second bracket 30 made of aluminum alloy are in contact with each other through the rubber film 16a, the attachment member 11 and the second bracket 30 can be prevented from being corroded by electrolytic corrosion.

  Further, compared with the case where the rubber film is not formed on the attachment member 11, the required accuracy of the sealing property of the vulcanization mold used at the time of manufacturing the vibration isolator 10 can be moderated. Reduction can be achieved. Furthermore, compared with the case where the rubber film 16a is not formed on the mounting member 11, the work of removing the rubber burrs attached to the mounting member 11 and the like can be omitted, so that the number of work steps can be reduced.

  Further, since the attachment member 11 is covered with the rubber film 16a, a reaction force by the rubber film 16a can be obtained between the attachment member 11 inserted into the groove portion 34 and the second bracket 30. Therefore, when the vibration isolating unit 1 is in use, it is possible to prevent the mounting member 11 from rattling when a load is input to the vibration isolating unit 1.

  Moreover, since the center member 12 is formed in the bottomed cylindrical shape, the vibration isolator 10 can be reduced in weight compared to the case where the boss member 911 (see FIG. 15) formed in a solid shape is used. Further, by forming the central member 12 integrally with the attachment member 11, the number of parts can be reduced as compared with the case where the central member 12 and the attachment member 11 are separate members.

  Furthermore, a part of the mounting member 11 (the lower surface arrangement portion 14b) is arranged on the lower surface of the fixing member 31, and the lower surface arrangement portion 14b is crimped to the fixing member 31, so that the vertical load input to the vibration isolation unit 1 can be reduced. It can be received by the lower surface arrangement portion 14b. Since the area of the load receiving surface (the lower surface arrangement portion 14b) for the load in the vertical direction can be increased, the same mechanical strength as that of the bolt B of the conventional vibration isolation unit 901 (see FIG. 15) can be secured.

  Next, a second embodiment will be described with reference to FIGS. In 1st Embodiment, the case where the fixing member 31 was crimped | crimped by the upper surface arrangement | positioning part 13 and the lower surface arrangement | positioning part 14b of the attachment member 11 was demonstrated. On the other hand, in the second embodiment, the fixing member 31 is crimped and sandwiched by the upper surface arrangement portion 13 and the lower surface arrangement portion 114b of the attachment member 111, and the shaft of the attachment member 111 is formed by the side surface arrangement portion 114a and the side surface facing portion 114c. The case where the relative movement in the perpendicular direction is restricted will be described. In addition, about the part same as what was demonstrated in 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted.

  6 is a perspective view from the back side of the first bracket 20 and the vibration isolator 110 constituting the vibration isolator unit 101 in the second embodiment, and FIG. 7 is a rear view of the anti-vibration unit 101. FIG. 8 is a cross-sectional view of the image stabilization unit 101 taken along line VIII-VIII in FIG. 7. As shown in FIG. 6, in the vibration isolator 110, the mounting member 111 is vulcanized and bonded to the vibration isolator base 16 (see FIG. 8). The attachment member 111 includes an upper surface arrangement portion 13 and a flat and rectangular bent curved surface portion 114 that is substantially orthogonal to the upper surface arrangement portion 13 via a bent portion 13a.

  As shown in FIGS. 7 and 8, the folded curved surface portion 114 is bent at two locations, whereby a side surface arrangement portion 114 a disposed on the side surface of the fixing member 31 and a lower surface arrangement disposed on the lower surface of the fixing member 31. The part 114b is a part formed on the side surface of the fixing member 31 and the side facing part 114c facing the side surface arranging part 114a. Therefore, the folding surface portion 114 is formed longer than the folding surface portion 14 of the attachment member 11 in the first embodiment.

  Next, a manufacturing method of the image stabilization unit 101 will be described. The vibration isolation unit 101 is manufactured by press-fitting the vibration isolation device 110 into the second bracket 30. When the vibration isolator 110 is press-fitted into the second bracket 30, the space between the overhanging portions 35 is simultaneously inserted while inserting the upper surface placement portion 13 of the vibration isolator 110 into the groove 34 (see FIG. 3) of the second bracket 30. The shaft portion 12 b is passed through 36.

  Next, the front end side of the folding surface portion 114 of the attachment member 111 is bent toward the lower surface of the fixing member 31. The lower surface arrangement portion 114 b is arranged on the lower surface of the fixing member 31 by bending the front end side of the folding surface portion 114. The attachment member 111 is caulked and fixed to the fixing member 31 by crimping the lower surface arrangement portion 114 b to the fixing member 31. Furthermore, the front end side of the folded curved surface portion 114 is bent along the wall portion 37 to form the side facing portion 114c, and the relative displacement of the fixing member 31 is restricted by the side facing portion 114c and the side surface arranging portion 114a. Thereby, the manufacture of the vibration isolation unit 101 is completed.

  According to the anti-vibration unit 101 manufactured as described above, the attachment member 111 is bent at the side facing portion 114 c from the lower surface arrangement portion 114 b toward the side surface of the fixing member 31. Since the side facing portion 114c faces the side surface arranging portion 114a, it is possible to restrict the vibration isolator 110 from moving relative to the second bracket 30 in the direction perpendicular to the axis (left and right direction in FIG. 5).

  Therefore, when the vibration isolator unit 101 is in use, the side surface arrangement portion 114a and the side surface facing portion 114c abut on both side surfaces of the fixing member 31, so that the anti-vibration device 110 is perpendicular to the second bracket 30 in the direction perpendicular to the axis (left and right in FIG. 5). Direction) relative displacement can be regulated. Therefore, in addition to the effect exhibited by the vibration isolating unit 1 in the first embodiment, the vibration isolating unit 101 can resist an input load in the direction perpendicular to the axis (the left-right direction in FIG. 5), and the mounting member 111 acts on the fixing member 31. The fixed state can be maintained firmly.

  Next, a third embodiment will be described with reference to FIG. In the second embodiment, when the vibration isolation unit 101 is assembled, the vibration isolation device 110 is press-fitted into the second bracket 30, and then the attachment member 111 (folded curved surface portion 114) is bent at two locations, thereby arranging the lower surface arrangement portion. The case where the 114b and the side facing portion 114c are formed and fixed to the fixing member 31 by crimping has been described. On the other hand, in the third embodiment, when assembling the vibration isolation unit 201, the vibration isolation device 210 is press-fitted into the second bracket 30, and then the attachment member 211 (folded curved surface portion 214) is bent at one place to lower the bottom surface. The case where the arrangement portion 214b and the side facing portion are formed and fixed to the fixing member 31 by pressure will be described. In addition, about the part same as 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted. FIG. 9 is a perspective view from the back side of the first bracket 20 and the vibration isolator 210 constituting the vibration isolation unit 201 in the third embodiment.

  As shown in FIG. 9, in the vibration isolator 210, the mounting member 211 is vulcanized and bonded to the vibration isolator base 16 (see FIG. 8). The attachment member 211 includes an upper surface arrangement portion 13 and a bent curved surface portion 214 formed in a substantially L shape when viewed from the side through the bent portion 13a. The folding surface portion 214 is formed with a side surface arrangement portion 214a positioned on the side surface of the fixing member 31 of the second bracket 30, and is bent in advance to form a lower surface arrangement portion 214b facing the upper surface arrangement portion 13. . The length of the folding surface portion 214 (the total length of the upper surface arrangement portion 13 and the lower surface arrangement portion 214b) is set to the same length as that of the folding surface portion 114 of the mounting member 111 in the second embodiment.

  Next, a manufacturing method of the image stabilization unit 201 will be described. The vibration isolation unit 201 is manufactured by press-fitting the vibration isolation device 210 into the second bracket 30. When press-fitting the vibration isolator 210 into the second bracket 30, at the same time, the space between the overhanging portions 35 is inserted while inserting the upper surface arrangement portion 13 of the vibration isolator 210 into the groove portion 34 (see FIG. 3) of the second bracket 30. The shaft portion 12 b is allowed to pass through 36, and the lower surface arrangement portion 214 b is set along the lower surface of the fixing member 31.

  Next, the front end side of the folding surface portion 214 (the lower surface arrangement portion 214 b) of the mounting member 211 is bent along the wall portion 37 to form a side facing portion. The lower surface arrangement portion 214b is pressure-bonded to the lower surface of the fixing member 31, and the fixing member 31 is sandwiched between the upper surface arrangement portion 13 and the lower surface arrangement portion 214b and between the side surface arrangement portion 214a and the side surface facing portion. Thereby, the manufacture of the image stabilization unit 201 is completed.

  According to the anti-vibration unit 201 manufactured as described above, the number of bendings of the mounting member 211 when the anti-vibration device 210 is press-fitted into the second bracket 30 to assemble the anti-vibration unit 201 is determined according to the second embodiment. As compared with the image stabilization unit 101 in FIG. Thereby, the work man-hour at the time of the assembly work of the vibration proof unit 201 can be reduced.

  Next, a fourth embodiment will be described with reference to FIGS. 2nd Embodiment demonstrated the case where the front end side of the folding surface part 114 of the attachment member 111 was bent, and the side surface opposing part 114c facing the side surface arrangement | positioning part 114a was formed. On the other hand, in the fourth embodiment, the extending portion 315 extending to the distal end side of the upper surface arranging portion 13 of the mounting member 311 is bent to form the side facing portion 315a facing the side surface arranging portion 14a. The case will be described. In addition, about the part same as what was demonstrated in 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted.

  FIG. 10 is a perspective view from the back side of the first bracket 20 and the vibration isolation device 310 constituting the vibration isolation unit 301 in the fourth embodiment, and FIG. 11 is a perspective view from the back side of the second bracket 330. FIG. 12 is a cross-sectional view of the image stabilization unit 301. Note that FIG. 12 corresponds to a longitudinal section cut along a plane including the axis O of the vibration isolator 310.

  As shown in FIG. 10, in the vibration isolator 310, the attachment member 311 is vulcanized and bonded to the vibration isolator base 16 (see FIG. 12). The attachment member 311 includes an upper surface arrangement portion 13, a bent curved surface portion 14 in which one end side of the upper surface arrangement portion 13 is bent in the axis O direction, and an extension in which the other end side of the upper surface arrangement portion 13 extends in a direction perpendicular to the axis. Part 315.

  As shown in FIG. 11, the second bracket 330 is configured in the same manner as the second bracket 30 described in the first embodiment except that the wall portion 37 is omitted, and thus detailed description thereof is omitted. . As for the 2nd bracket 330, the groove part 34 opens on the both sides | surfaces of the fixing member 31 because the wall part 37 is abbreviate | omitted.

  As shown in FIG. 12, the extending portion 315 is bent at two locations, so that it is disposed on the side surface of the fixing member 31 and faces the side surface arranging portion 14 a, and the lower surface of the fixing member 31. And a lower surface arrangement part 315b opposite to the upper surface arrangement part 13 is formed.

  Next, a manufacturing method of the image stabilization unit 301 will be described. The vibration isolation unit 301 is manufactured by press-fitting the vibration isolation device 310 into the second bracket 330. When press-fitting the vibration isolator 310 into the second bracket 330, simultaneously, the space between the overhanging portions 35 is inserted while inserting the upper surface arrangement portion 13 of the vibration isolator 310 into the groove 34 (see FIG. 11) of the second bracket 330. The shaft portion 12 b is passed through 36. Next, the distal end side of the folding surface portion 14 of the attachment member 311 is bent toward the lower surface of the fixing member 31. The lower surface arrangement part 14b arranged on the lower surface of the fixing member 31 is crimped to the fixing member 31 by bending the front end side of the bent surface part 14, and the fixing member 31 is interposed between the lower surface arrangement part 14b and the upper surface arrangement part 13. Pinch.

  Further, the distal end side of the extending portion 315 of the attachment member 311 is bent toward the side surface and the lower surface of the fixing member 31. By bending the distal end side of the extending portion 315, a side facing portion 315a disposed on the side surface of the fixing member 31 and a lower surface arrangement portion 315b disposed on the lower surface of the fixing member 31 are formed. The fixing member 31 is pressed and clamped from above and below between the lower surface arrangement part 315b and the upper surface arrangement part 13 arranged on the lower surface of the fixing member 31. Further, the position of the attachment member 311 is regulated with respect to the fixing member 31 by the side surface arrangement portions 14 a and the side surface facing portions 315 a arranged on both side surfaces of the fixing member 31. Thereby, the manufacture of the image stabilization unit 301 is completed.

  According to the vibration isolating unit 301 manufactured as described above, the side surface arrangement portion 14a and the side surface facing portion 315a abut against the both side surfaces of the fixing member 31 in the usage state, so that the vibration isolating device 310 against the second bracket 330 is in contact. The relative displacement in the direction perpendicular to the axis (left and right direction in FIG. 12) can be restricted. Therefore, in addition to the effect of the vibration isolation unit 1 in the first embodiment, the vibration isolation unit 301 can counter the input load in the direction perpendicular to the axis (left and right direction in FIG. 12), and the mounting member 311 is against the fixing member 31. The fixed state can be maintained firmly.

  Next, a fifth embodiment will be described with reference to FIG. In the first to fourth embodiments, the case has been described in which the central member 12 to which the antivibration base 16 is vulcanized and the attachment members 11, 111, 211, and 311 are formed as one member. In contrast, in the fifth embodiment, a case where the center member 12 and the attachment member 414 are formed as separate members will be described. In addition, about the part same as 1st Embodiment, the same code | symbol is attached | subjected and the following description is abbreviate | omitted. FIG. 13 is a cross-sectional view of the vibration isolation unit 401 according to the fourth embodiment, and corresponds to a vertical cross section cut along a plane including the axis O of the vibration isolation device 410.

  As shown in FIG. 13, the center member 12 vulcanized and bonded to the vibration-proof base 16 has an upper surface arrangement portion 413 extending around the open end (lower end), which is an anticorrosion plated steel plate such as a galvanized steel plate. Are integrally formed. Since the central member 12 and the upper surface arrangement part 413 are formed of a corrosion-resistant plated steel plate, it is possible to omit the coating of the surface of the upper surface arrangement part 413 and the covering of the upper surface arrangement part 413 with a rubber film.

  The attachment member 414 is a rectangular plate formed of a corrosion-resistant plated steel plate such as a galvanized steel plate, and is a member for caulking and fixing the upper surface arrangement portion 413 to the fixing member 31. Since the attachment member 414 is formed of a corrosion-resistant plated steel plate, coating of the surface of the attachment member 414 and covering of the attachment member 414 with a rubber film can be omitted. The attachment member 414 is bent at a portion orthogonal to the longitudinal direction, whereby an engagement portion 414a, a side surface arrangement portion 414b, a lower surface arrangement portion 414c, and a side surface facing portion 414d are formed.

  The engaging portion 414 a is a portion that is in close contact with the upper surface arrangement portion 413 and is disposed below the overhang portion 35, and the side surface arrangement portion 414 b is bent with respect to the engaging portion 414 a and is located on the side surface of the fixed portion 31. It is a part to be arranged. The lower surface arrangement portion 414c is a portion that is bent with respect to the side surface arrangement portion 414b and disposed on the lower surface of the fixing member 31, and the side surface facing portion 414d is bent with respect to the lower surface arrangement portion 414c and is a side surface of the fixing member 31. It is the site | part which is arrange | positioned and opposes the side surface arrangement | positioning part 414b.

  Next, a manufacturing method of the image stabilization unit 401 will be described. The vibration isolation unit 401 is manufactured by press-fitting the vibration isolation device 410 into the second bracket 30. When press-fitting the vibration isolator 410 into the second bracket 30, simultaneously, the upper surface arrangement portion 413 of the vibration isolation device 410 is inserted into the groove portion 34 (see FIG. 3) of the second bracket 30, and the upper surface arrangement portion 413 is inserted into the groove portion 34. It arrange | positions at the bottom part 34a. Next, one end (engagement portion 414a) of the attachment member 414 that is bent in advance at two locations to form the engagement portion 414a, the side surface arrangement portion 414b, and the lower surface arrangement portion 414c is formed into the upper surface arrangement portion. Insert into the gap between 413 and the overhanging portion 35.

  Next, the side surface arrangement portion 414b is arranged on the side surface of the fixing member 31, and the lower surface arrangement portion 414c is arranged on the lower surface of the fixing member 31, and then the fixing member 31 is moved up and down between the engaging portion 414a and the lower surface arrangement portion 414c. Crimp and hold from. Since the upper surface arrangement portion 413 is sandwiched between the engaging portion 414a and the fixing member 31, the upper surface arrangement portion 413 is attached by pressing and holding the fixing member 31 from above and below between the engaging portion 414a and the lower surface arrangement portion 414c. It is fixed to the fixing member 31 by the member 414.

  Further, the other end side of the attachment member 414 is bent toward the side surface of the fixing member 31. By bending the other end side of the attachment member 414, a side facing portion 414d that is disposed on the side surface of the fixing member 31 is formed facing the side surface arranging portion 414b. The position of the attachment member 414 is regulated with respect to the fixing member 31 by the side surface arrangement portions 414b and the side surface facing portions 414d arranged on both side surfaces of the fixing member 31. Thereby, the manufacture of the vibration isolation unit 401 is completed.

  According to the anti-vibration unit 401 manufactured as described above, the central member 12 and the attachment member 414 are formed as separate members, but the engagement portion 414a that engages with the upper surface arrangement portion 413 is provided on the attachment member 414. By providing, the upper surface arrangement part 413 formed integrally with the central member 12 can be caulked and fixed to the second bracket 30.

  In addition, when the vibration isolator unit 401 is in use, the side surface arrangement portions 414b and the side surface facing portions 414d are positioned on both side surfaces of the fixing member 31, so Direction) relative displacement can be regulated. Therefore, in addition to the effect of the vibration isolation unit 1 in the first embodiment, the vibration isolation unit 401 can counter the input load in the direction perpendicular to the axis (left and right direction in FIG. 13), and the central member 12 acts on the fixed member 31. The state fixed with respect to it can be maintained firmly.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  In addition, part or all of the configurations of the above embodiments may be combined with or replaced with the configurations of the other embodiments. For example, the attachment member 11, 111, 211, 311 in the first to third embodiments is made of a corrosion-resistant plated steel plate like the attachment member 414 of the fourth embodiment, so that the rubber film is formed. The form made into the structure which does not form is mentioned. Further, the mounting members 11, 111, 211, 311 formed integrally with the central member 12 in the first to third embodiments are different from the central member 12 as in the fourth embodiment. The form to do is mentioned.

  Although the description is omitted in each of the above embodiments, a concave portion or a convex portion is formed on the surface of the fixing member 31 on which the mounting members 11, 111, 211, 311, 414 are arranged, and the mounting member is attached to the concave portion or the convex portion. After the overlapping, the mounting members 11, 111, 211, 311 and 414 and the fixing member 31 can be caulked (plastically coupled) by pressing the convex or concave caulking head. By engaging the unevenness in this way, the tensile strength in the direction parallel to the surface of the fixing member 31 can be improved.

  Although not described in the above embodiments, the fixing member 31 is provided with a hole penetrating in the thickness direction, and a part of the attachment members 11, 111, 211, 311, 414 is inserted into the hole, and the hole is inserted from the hole. Of course, the mounting members 11, 111, 211, 311, and 414 can be plastically coupled to the fixing member 31 by bending, twisting, crushing, or the like of a part of the protruding mounting member.

1, 101, 201, 301, 401 Anti-vibration unit 10, 110, 210, 310, 410 Anti-vibration device 11, 111, 211, 311, 414 Mounting member (caulking coupling member)
DESCRIPTION OF SYMBOLS 12 Center member 12b Shaft part 13,413 Upper surface arrangement | positioning part 14a, 114a, 214a, 414b Side surface arrangement part 14b, 114b, 214b, 315b, 414c Lower surface arrangement | positioning part 15 Outer cylinder member 16 Antivibration base | substrate 16a Rubber film 20 1st bracket 30 , 330 Second bracket 31 Fixing member 32 Standing member 33 Connecting member 34 Groove 34a Bottom 35 Overhang 36 Space 114c, 315a, 414d Side facing portion

Claims (7)

A cylindrical outer cylinder member, a central member coaxially disposed below the outer cylindrical member, and an anti-vibration base that connects the central member and the outer cylindrical member and has a vibration-proof base made of a rubber-like elastic body. A vibration device;
A first bracket which is attached to the vibration source side while holding the vibration isolator by pressing the outer cylinder member of the vibration isolator in the axial direction;
A fixing member to which a central member of the vibration isolator is fixed; a pair of standing members that are erected upward from both sides of the fixing member and arranged to face each other with the vibration isolating base interposed therebetween; and the pair of standing members In a vibration isolating unit comprising a second bracket that is connected to the vehicle body side and has a connection member that is disposed opposite to the fixing member with the vibration isolating bases sandwiched between the standing tips of the installation members,
A caulking coupling member connected to the central member is provided, and a predetermined portion of the caulking coupling member is crimped to the fixing member, whereby the central member of the vibration isolator is fixed to the fixing member of the second bracket. Anti-vibration unit characterized by that. An upper surface arrangement portion connected to the central member and disposed on the upper surface of the fixing member;
The caulking coupling member is connected to the upper surface arrangement portion at one end side, the other end side is bent from the upper surface to the side surface of the fixing member, and the side surface arrangement portion is arranged on the side surface of the fixing member;
The anti-vibration unit according to claim 1, further comprising a lower surface arrangement portion that is bent toward the lower surface of the fixing member from the side surface arrangement portion and is crimped to the fixing member. The vibration isolator includes a shaft portion extending from the central member to the upper surface arrangement portion,
The second bracket is recessed in the upper surface of the fixing member and opens in a side surface of the fixing member, and the groove portion in which the upper surface arrangement portion is arranged in the bottom portion;
A space having a cross-sectional shape through which at least the shaft portion can pass is provided to project from both sides of the groove portion to above the bottom portion, and to have a projecting portion whose upper surface is pressed against the lower surface of the vibration-isolating base. The anti-vibration unit according to claim 2.   In the second bracket, one opening of the groove portion is formed on the side surface of the fixing member where the side surface arrangement portion of the mounting member is disposed, and a wall portion that closes the other opening of the groove portion is formed on the opposite side surface. The anti-vibration unit according to claim 3, wherein the anti-vibration unit is provided.   The said crimping coupling member is equipped with the side surface opposing part which is bent toward the side surface of the said fixing member from the said lower surface arrangement | positioning part or the said upper surface arrangement | positioning part, and opposes the said side surface arrangement | positioning part. 5. The vibration isolating unit according to any one of 4 above.   6. The upper surface arrangement portion, the side surface arrangement portion, and the lower surface arrangement portion are covered with a rubber film formed integrally with a rubber-like elastic body constituting the vibration-proof base. The vibration isolating unit according to any one of the above.   The vibration isolation unit according to any one of claims 1 to 6, wherein the center member is formed in a bottomed cylindrical shape and is integrally formed with the caulking coupling member.

Images