JP6711858B2 - Assembly structure of clutch slave cylinder - Google Patents

Description

The present invention relates to a clutch slave cylinder assembly structure.

The master cylinder that generates hydraulic pressure in response to the depression of the clutch pedal, the clutch slave cylinder that expands with the hydraulic pressure supplied from the master cylinder, the release fork that is driven by the clutch slave cylinder, and the connection by being pressed by the release fork are connected. A clutch device for a drive system of a vehicle having a friction portion for releasing is known (for example, Patent Documents 1 and 2). The friction portion is provided inside the transmission housing, and one end of the release fork or an arm connected to the release fork projects outward from the transmission housing. The clutch slave cylinder is mounted on the outer surface of the transmission housing, and the output rod of the clutch slave cylinder abuts a release fork or arm outside the transmission housing. In order to maintain the contact state between the output rod and the release fork or arm, a spring is provided inside the clutch slave cylinder to urge the output rod in the protruding direction.

Japanese Patent Laid-Open No. 4-217730 Japanese Patent Laid-Open No. 08-028592

When assembling the clutch slave cylinder to the transmission housing, it is necessary to perform fastening work with screws while the clutch slave cylinder is contracted. However, the work of fastening the screw with the other hand while contracting the clutch slave cylinder with one hand is heavy. To solve this problem, there is a method in which the rod of the clutch slave cylinder is fixed in advance by a fixing tool such as resin or wire, and the clutch slave cylinder is fastened to the transmission housing, and then the fixing tool is cut and removed. .. However, the use of a fixture is expensive and the man-hours required for removal are increased. In addition, it is necessary to secure a work space for removing the fixture around the transmission housing.

In view of the background described above, an object of the present invention is to provide an assembling structure of a clutch slave cylinder that can be easily assembled.

In order to solve the above-mentioned problems, an aspect of the present invention is a transmission housing (5), a release fork (9) or an arm (11) for driving the release fork, which projects outside the transmission housing. An assembly pedestal (12) coupled to the outer surface of the transmission housing, a cylinder body (13) fastened to the assembly pedestal, and an elastically projecting end of the cylinder body from one end of the cylinder body in the axial direction. A clutch slave cylinder (2) having a fork or a rod (14) that abuts the arm, and at least two projecting pieces (19) projecting laterally of the cylinder body, and the assembling. The pedestal has a protrusion (23) that comes into contact with the protrusion, and a virtual straight line (V) that connects one end of the rod and the contact surface (25) of the protrusion intersects the protrusion. An assembly structure (1) for a clutch slave cylinder is provided.

According to this aspect, when the clutch slave cylinder is mounted on the mounting pedestal, the clutch slave cylinder is connected to the release fork or arm and the protrusion of the mounting pedestal by utilizing the biasing force generated between the cylinder body and the rod. It can be in a temporarily fixed state with a constraint. If the imaginary straight line connecting one end of the rod and the contact surface of the protrusion intersects the protrusion, the cylinder body is restrained via the protrusion at the time of temporary fixing. The worker presses the tip of the rod against the release fork or the arm connected to it to contract the clutch slave cylinder, and then locks the protrusion of the cylinder body with the protrusion of the assembly pedestal to temporarily fix it. Can be After that, the worker can fasten the cylinder body to the mounting pedestal and complete the mounting work. In this way, the worker can independently perform the contracting work of the clutch slave cylinder and the fastening work of the cylinder body, so that the work load can be reduced. In this aspect, since a fixing tool for fixing the rod in the contracted state is not required, it is possible to reduce the number of working steps and the cost.

In the above aspect, the projecting piece may be provided with a through hole (21) through which a screw (20) for fastening the cylinder body to the mounting pedestal is inserted.

According to this aspect, the cylinder body can be fastened to the mounting pedestal using the protrusion. Since the temporary fixing position and the fastening position are close to each other, the assembling accuracy can be improved.

In the above aspect, the projecting pieces are provided on opposite side portions of the cylinder body in a pair offset from each other in the axial direction of the cylinder body, and the projecting portions correspond to the respective projecting pieces. It may be provided on the mounting base.

According to this aspect, in the temporarily fixed state, the protrusions come into contact with the corresponding protrusions at two positions sandwiching the axis of the cylinder body, so that the rotational stability in the plane perpendicular to the axis of the cylinder body with respect to the mounting pedestal is stable. Is improved. In the temporarily fixed state, the protrusions come into contact with the corresponding protrusions at two positions separated from each other on the axis of the cylinder body, so that rotational stability in a plane parallel to the axis of the cylinder body with respect to the mounting pedestal is improved. Further, in the final stopped state, the stability of the cylinder body with respect to the mounting pedestal is improved.

In the above aspect, the assembly pedestal is provided with a cylindrical boss (24) having a screw hole for receiving a screw inserted into the through hole, and the protrusion is axially provided from an outer periphery of the cylindrical boss. It is preferable to form a protruding arcuate wall (25).

According to this aspect, since the protrusion has an arc shape, the protrusion can be locked at any point on the arc from a plurality of vertical directions. As a result, it is possible to prevent the cylinder body from moving not only to the rear but also to the side, and temporarily fix the cylinder main body with good stability. In order to maintain the predetermined strength of the arcuate wall protruding in the axial direction, for example, a skirt-like shape that expands from the free end of the protrusion toward the protrusion to form a skirt is taken in, or at least the thickness of the protrusion is increased. Alternatively, a reinforcing portion may be formed adjacent to the protrusion base, but in this embodiment, the cylindrical boss provided with the screw hole and the protrusion base are integrally formed to provide an effect of reducing the weight of the mounting pedestal. ing.

In the above aspect, the free end (26) of the arcuate wall may be lower than the surface (27) of the protrusion opposite to the boss side.

According to this aspect, since the free end of the arcuate wall body that integrally projects from the outer periphery of the boss is lower than that of the protrusion, the arcuate wall body is fastened without interference with the work tool when screwed. It has the effect of enabling work efficiency.

In the above aspect, the clutch slave cylinder has a hydraulic pipe (30) extending from the cylinder body, and the mounting pedestal extends at least one of the hydraulic pipes extending forward in the vehicle front-rear direction. It is preferable to have a part (31).

According to this aspect, the hydraulic pipe can be protected by the extending portion.

In the above aspect, a pair of the extending portions may be provided, and the hydraulic pipe may pass between the pair of extending portions.

According to this aspect, the hydraulic pipe can be more surely protected by the extending portion.

In the above aspect, the transmission housing is provided on the vehicle body so that its axis is parallel to the vehicle width direction, and the mounting pedestal is located above the transmission housing, and the extension portion is the frontmost side. It is good to be provided.

According to this aspect, the extension portion can protect the hydraulic pipe during a frontal collision.

In the above aspect, in the cylinder body, the other end is arranged forward with respect to one end from which the rod projects, and each of the tip ends of the pair of extending portions is arranged in front of the other end of the cylinder body. It should have been done.

According to this aspect, the extending portion can protect the clutch slave cylinder during a frontal collision.

According to the above configuration, it is possible to provide a clutch slave cylinder assembling structure that is easy to assemble.

FIG. 3 is a perspective view showing an assembling structure of a clutch slave cylinder after being assembled to a transmission housing. Perspective view of assembly base Top view of assembly base Side view showing the clutch slave cylinder assembly structure during clutch slave cylinder assembly Side view of the clutch slave cylinder after temporary attachment to the mounting base Side view of the clutch slave cylinder after it is fastened to the mounting base Plan view of the assembled pedestal and the transmission housing after fastening Plan view of the clutch slave cylinder and assembly pedestal after temporary fixing Plan view of the clutch slave cylinder and assembly pedestal after fastening

An embodiment of the clutch slave cylinder assembly structure 1 according to the present invention will be described below.

Hereinafter, the clutch slave cylinder 2 mounting structure 1 according to the present invention is applied to a clutch device 3 for connecting and disconnecting an output shaft of an internal combustion engine and an input shaft of a transmission in a four-wheel vehicle including a light vehicle and a normal vehicle. The applied embodiment will be described.

As shown in FIG. 1, an internal combustion engine and a transmission (not shown) that are connected to each other via a clutch device 3 are horizontally arranged in an engine room 4 provided in a front portion of a vehicle (not shown). .. The transmission housing 5 that forms the outer shell of the transmission is formed in a box shape that opens toward one side, and is connected to the end wall of the internal combustion engine at the open end. A radiator 6 is provided in the front part of the engine room 4 and in front of the internal combustion engine and the transmission.

The clutch device 3 shown in FIG. 1 includes a master cylinder 8 that generates hydraulic pressure in response to depression of the clutch pedal 7, a clutch slave cylinder 2 that extends by hydraulic pressure supplied from the master cylinder 8 via a hydraulic pipe 33, and a clutch. It has a release fork 9 driven by the slave cylinder 2 and a friction part 10 that is pressed by the release fork 9 to release the connection. The friction part 10 and the output end of the release fork 9 are provided inside the transmission housing 5, and the input end of the release fork 9 projects outward from the transmission housing 5. The input end of the release fork 9 is formed in a shaft shape and is rotatably supported by the transmission housing 5. An arm 11 extending in the radial direction with respect to the input end is coupled to the input end of the release fork 9. By rotating the arm 11 and the input end of the release fork 9, the output end of the release fork 9 moves and drives the friction portion 10.

The clutch slave cylinder 2 is attached to the outer surface of the transmission housing 5 via an assembly pedestal 12 described later. The clutch slave cylinder 2 is a known hydraulic cylinder, and is provided between the cylinder body 13, a cylinder-shaped cylinder body 13, an output rod 14 that is provided to the cylinder body 13 so as to be able to move forward and backward, and between the cylinder body 13 and the output rod 14. The cylinder body 13 has a spring (not shown) that biases the output rod 14 in the protruding direction. The output rod 14 biased by the spring is in contact with the outer end of the arm 11 at the tip.

In the initial state where the clutch pedal 7 is not depressed, the friction portion 10 is pressed by a spring mechanism (not shown) and is connected. At this time, the release fork 9 is located at the initial position by the spring and is pushed by the arm 11 to bring the clutch slave cylinder 2 into a contracted state. When the clutch pedal 7 is stepped on, the clutch slave cylinder 2 receives the hydraulic pressure from the master cylinder 8 via the hydraulic pipe 33 and extends, and the output rod 14 rotates the arm 11. The rotation of the arm 11 moves the output end of the release fork 9 to drive the friction portion 10, and the friction portion 10 disconnects the connection.

The clutch slave cylinder 2 mounting structure 1 according to the embodiment is a structure for mounting the clutch slave cylinder 2 to the transmission housing 5 via the mounting base 12. The mounting pedestal 12 is coupled to the outer surface of the transmission housing 5 by screw fastening.

As shown in FIG. 2, the mounting pedestal 12 has a plate portion 15 that abuts and holds the clutch slave cylinder 2, and at least a part of the plate portion 15 is separated from the outer surface of the transmission housing 5. 5, a pillar portion 16, a wall portion 17 and a base portion 18 for avoiding interference with the uneven shape of the outer surface. The mounting pedestal 12 is integrally formed and is made of metal. The plate portion 15 of the mounting pedestal 12 is formed so that the rod shaft is on a plane perpendicular to the release fork 9 after the mounting. Ribs are provided at the corners of the plate portion 15 and the wall portion 17 for reinforcement.

As shown in FIGS. 4 and 8, the cylinder body 13 may be provided with at least two projecting pieces 19 projecting laterally. In the present embodiment, there are one pair of projecting pieces 19 of the cylinder body 13 on opposite sides of the cylinder body 13, the cylinder body 13 is sandwiched between the pair of projecting pieces 19, and the axis line of the cylinder body 13 is The lines that offset each other in the direction and that connect the pair of protrusions 19 are not orthogonal to the axis.

As shown in FIG. 8, the projecting piece 19 has a through hole 21 into which a screw 20 (see FIG. 9) for fastening the cylinder body 13 to the mounting pedestal 12 is inserted.

As shown in FIGS. 2 and 3, the plate portion 15 of the assembly pedestal 12 is provided so as to face the projecting piece 19 from the side away from the projecting direction of the output rod 14 during assembly. It has a protrusion 23. The protrusions 23 are provided on the assembly pedestal 12 so as to correspond to the pair of protrusions 19, respectively.

The plate portion 15 of the assembly pedestal 12 is provided with a cylindrical boss 24 having a screw hole 22 for receiving the screw 20 inserted in the through hole 21, and the protrusion 23 is formed on the cylindrical boss 24. It forms an arcuate wall 25 projecting from the outer periphery in the axial direction.

As shown in FIG. 5, the free end 26 of the wall is lower than the surface 27 of the protrusion 19 on the side opposite to the cylindrical boss 24 side. Here, the free end 26 refers to the end of the portion of the protrusion 23 that protrudes in the cylinder axis direction beyond the cylindrical boss 24.

As shown in FIG. 3, at least one through hole 29 through which a screw 28 to be screwed into a screw hole (not shown) provided on the outer surface of the transmission housing 5 is inserted is provided in the base portion 18 of the assembly pedestal 12. Has been.

As shown in FIG. 1, the clutch slave cylinder 2 has a hydraulic pipe 30 extending from the cylinder body 13. The hydraulic pipe 30 is connected to the hydraulic pipe 33. The hydraulic pipe 30 has a pair of extending portions 31 extending from the base portion 18 to the front of the hydraulic pipe 30 in the vehicle front-rear direction on the assembly pedestal 12. The hydraulic pipe 30 passes between the pair of extending portions 31. The extension portions 31 shown in FIGS. 2 and 3 do not necessarily have to be a pair, and at least one extension portion may be provided.

As shown in FIG. 9, the cylinder body 13 has the other end 32 arranged in front of one end from which the output rod 14 projects, and extends from the base portion 18 in the vehicle front-rear direction forward of the hydraulic pipe 30. Each of the tip ends of the pair of extending portions 31 is arranged in front of the other end 32 of the cylinder body.

The assembling process of the assembling structure 1 of the clutch slave cylinder 2 configured as described above, and the action and effect peculiar to the present invention exhibited at the time of a collision during operation will be described below.

When assembling the mounting pedestal 12 with the transmission housing 5, the pillar portion 16 and the wall portion 17 realize a weight reduction as compared with the case where the uneven shape of the outer surface of the transmission housing 5 is imitated by the bulk member. It is possible to obtain the effect that the processing of the surface of the transmission housing 5 is avoided as much as possible, a smaller flat portion is utilized, and the mounting pedestal 12 can be screwed to the transmission housing 5.

As shown in FIGS. 1 to 3, the pillar portion 16 and the wall portion 17 are arranged so as to be spaced apart from each other so as to sandwich the cylinder body 13, and to obtain the effect of increasing the support stability in the direction intersecting with the cylinder axial direction. There is. The pillar portion 16 and the wall portion 17 are arranged so as to be separated from each other in the axial direction of the cylinder, and support the plate portion 15 from the base portion 18 which is arranged so that the cylinder body 13 has a different distance from the end portion. The effect of increasing the support stability in the direction is obtained.

Here, the mounting pedestal 12 may be coupled to the outer surface of the transmission housing 5 by any means, not necessarily by screw fastening. For example, any means of welding, screw fastening or snap fastening may be used.

As shown in FIGS. 5 and 8, in the assembly structure 1, the clutch slave cylinder 2 can be temporarily fixed during assembly.

The one end of the output rod 14 is pressed against the release fork 9 or the arm 11 that drives the release fork 9 against the elastic force, and the projecting piece 19 is engaged with the projecting portion 23 to temporarily hold the cylinder body. It is possible to attach 13 to the pedestal 12 temporarily.
As shown in FIG. 4, first, one end of the output rod 14 is brought into contact with the release fork 9 or the arm 11, and the output rod 14 is elastically projected from the open end of the cylinder body 13 in the axial direction. One end is pushed in to reduce the total length of the cylinder body 13 and the output rod 14, and the projecting piece 19 is made to face the wall surface of the arc-shaped wall 25 of the projecting portion 23 and held on the mounting pedestal 12 (FIGS. 5 and 5). 8). This is the “temporary fixing” state in this specification.

The assembling structure 1 can be easily fastened thereafter by temporarily fixing the clutch slave cylinder 2.

When temporarily fixed, the operator's hands are free even when the cylinder body 13 and the mounting pedestal 12 are screwed together, so that one person can easily work. Further, there is no need to use a jig and no working space is required, which is more economical.
As shown in FIG. 8, when the through holes 21 of the projecting pieces 19 and the screw holes 22 of the assembly pedestal 12 are aligned with each other in the axial centers of at least one set at the time of temporary fixing, screw fastening can be performed. It is more preferable. The coincidence of the axes of one set at the time of temporary fixing is realized by the positional shape accuracy of the protruding piece 19 and the protruding portion 23.

As shown in FIGS. 6 and 9, for fastening, the screw 20 inserted in the through hole 21 of the cylinder body 13 is screwed into the screw hole 22 provided in the cylindrical boss 24. As shown in FIG. 8, if at least one screw hole 22 and the through hole 21 are substantially aligned at the time of temporary fixing, a single worker can easily assemble them to a predetermined position by the final fastening. Since the free end 26 of the arcuate wall is lower than the upper surface of the projecting piece 19, there is no work trouble even when using a fastening tool such as a wrench, work efficiency is improved, and a narrower space is required. It is also advantageous in terms of design. It is also advantageous in work efficiency during manufacturing and maintenance. Here, the free end 26 does not necessarily have to be a flat surface as long as it is lower than the upper surface of the projecting piece 19 and the wall 25 for temporarily fixing the cylinder body 13 is formed.

Here, the projecting piece 19 may be upright with respect to the plate portion 15 of the mounting pedestal 12, or may be formed of any surface as long as it has a shape in which the projecting pieces 19 abut each other. For example, they may be slightly inclined with respect to the upright surface, but may be inclined so as to abut each other. Alternatively, even if the mounting pedestal 12 is rotated and tilted around a vertical axis with respect to the plane of the plate portion 15 as long as the surfaces facing each other can contact each other. In this embodiment, the protrusion 23 is in contact with the protrusion 19 at the contact surface 25. Correspondingly, the protruding piece 19 of the cylinder body 13 is also formed in a cylindrical shape so as to stand upright on the axis of the cylinder body 13, and both the protruding portion 23 and the protruding piece 19 form a cylindrical convex surface or a concave surface to contact. It is possible.

As shown in FIGS. 2 to 9, if both the protruding portion 23 and the protruding piece 19 are cylindrical convex surfaces or concave contact surfaces, not only the force parallel to the elastic force, but also the flat surface, Even if a lateral force acts, it is held on the mounting base 12 as it is. Therefore, even when the cylinder body 13 is fastened to the assembly pedestal 12, the holding force as a whole is provided and the workability is improved.

As shown in FIGS. 8 and 9, a pair of the protruding pieces 19 are provided on opposite sides of the cylinder body 13 so as to be offset from each other in the axial direction of the cylinder body 13. The assembly pedestal 12 is provided corresponding to each of the projecting pieces 19.
If the side portions of the cylinder body 13 which are opposite to each other, that is, the right and left sides in the radial direction in a plan view of the cylinder body 13, are provided, the left and right movement in the plane perpendicular to the axis of the output rod 14 during temporary fixing is kept smaller. Constrained by force, which is advantageous for work.
If the projecting pieces 19 are arranged offset from each other in the axial direction of the cylinder body 13, the rotational movement in the vertical direction with respect to the front and rear of the output rod 14 is restrained with a smaller holding force at the time of temporary fixing, which is advantageous for work. However, for example, as long as the axial length of the protruding piece 19 is a predetermined length that can ensure the constraint of the rotational movement in the vertical direction, it does not need to be offset.

As described above, the urging force generated by the cylinder body 13 is received by the protrusion 23 of the mounting pedestal 12 abutting against the protrusion piece 19, and the cylinder body 13 is released by the reaction force to move the cylinder body 13 to the release fork 9 or the arm 11. And the protrusion 23. By devising the contact surface shape at the time of temporary fixing, the constraint condition of the cylinder body 13 is increased, and the workability at the time of screwing the assembly pedestal 12 and the cylinder body 13 can be further improved. In this case, the arc shape is most suitable because it can deal with various directions. More specifically, the virtual straight line V connecting one end of the output rod 14 and the contact surface 25 of each projection 23 arranged corresponding to the offset projection 19 and the projection 19 described above. Are crossed as shown in FIG. 9, and the cylinder main body 13 is restrained via the projecting piece 19 during temporary fixing, which is more preferable. The virtual straight line V may pass through any one point as long as it is on the contact surface 25 of the protrusion 23. In FIG. 9, for each protrusion 23, the boundary line of the range is two virtual lines in plan view. The straight line V indicates that the virtual straight line V in this range intersects with the projecting piece 19.

In one embodiment, as shown in FIG. 8, the projecting piece 19 has a through hole 21 through which a screw 20 for fastening the cylinder body 13 to the mounting pedestal 12 is inserted. The projecting piece 19 that realizes the assembly structure 1 at the time of temporary fastening is not only used for holding the temporary fastening, but also includes the screw through hole 21 for screw fastening as described above, and is used at the time of temporary fastening and final fastening. Play different roles in the two situations. By providing such a multi function, it contributes to weight reduction and manufacturing cost reduction. Moreover, the through hole 21 of the projecting piece 19 also serves to lighten the projecting piece 19 and not only avoids providing an additional final tightening part in another part, but also contributes to weight reduction by combining both effects. To do.

In one embodiment, as shown in FIGS. 2 and 3, the protrusion 23 is provided on a cylindrical boss 24, and the cylinder body 13 is fastened to the assembly pedestal 12 on the cylindrical boss 24. A screw hole 22 is provided for this purpose. At the same time, the projection 23 forms an arcuate wall body that integrally projects from the outer periphery of the cylindrical boss 24, and the arcuate wall 25 serves as a contact surface with which the projection piece 19 engages. The protrusion 23 that generates a reaction force of the cylinder urging force at the time of temporary fastening has a screw hole 22 for the screw 20 for screw fastening at the same time, and plays different roles in two situations of temporary fastening and final fastening. By having such a multi-role role, it contributes to weight reduction and manufacturing cost reduction.

In one embodiment, as shown in FIG. 1, the extending portions 31 extending from the base portion 18 of the assembly pedestal 12 forward of the hydraulic pipe 30 in the vehicle front-rear direction have a pair of extending portions that are U-shaped in a plan view. The hydraulic pipe 30 includes a projecting portion 31 and is configured to pass between a pair of the extending portions 31. This has an effect of protecting the hydraulic pipe 30 from a vehicle collision. Further, the transmission housing 5 is provided on a vehicle body (not shown) such that its axis is parallel to the vehicle width direction, and the mounting pedestal 12 is provided on the upper portion of the transmission housing 5 with the extending portion 31. In order to protect the hydraulic pipe 30, it is provided at the frontmost side, and in this embodiment, it extends toward the front in the vehicle front-rear direction in the direction in which the adjacent radiators 6 are present, and the collision from the front is performed. On the other hand, it has an effect of protecting the hydraulic pipe 30. Here, the lower part of FIG. 1 is the front.
Further, as shown in FIG. 9, in the cylinder body 13, the other end 32 is arranged forward with respect to the one end from which the output rod 14 projects, and each of the tips of the pair of extending portions 31 has the above-mentioned structure. Since it is arranged in front of the other end 32 of the cylinder body 13, it has an effect of protecting the clutch slave cylinder 2 against a collision from the front.

Thus, the worker can freely perform the subsequent fixing work without using a separate jig. There is no need to use jigs not only during manufacturing but also during maintenance. According to the present invention, it is possible to work even in a relatively narrow space, and even one person can work.

According to the above configuration, it is possible to provide the assembling structure 1 of the clutch slave cylinder 2 which is easy to assemble.

Although the specific embodiment has been described above, the present invention is not limited to the above embodiment and can be widely modified and implemented. For example, the present invention may be applied to a vehicle in which an internal combustion engine and a transmission, which are connected to each other via a clutch device, are arranged in the engine room not only horizontally but vertically. Further, the material of each member is not limited to the above-described embodiment, and for example, the mounting pedestal may be made of resin as long as it has strength, instead of being made of metal. In addition, the specific configuration, arrangement, quantity, etc. of each member or part can be changed as appropriate without departing from the spirit of the present invention.

1: Assembly structure 2: Clutch slave cylinder 3: Clutch device 4: Engine room 5: Transmission housing 6: Radiator 7: Clutch pedal 8: Master cylinder 9: Release fork 10: Friction part 11: Arm 12: Assembly base 13: Cylinder body 14: Output rod 15: Plate part 16: Pillar part 17: Wall part 18: Base part 19: Projection piece 20: Screw 21: Through hole 22: Screw hole 23: Projection 24: Cylindrical boss 25: Wall (contact surface)
26: Free end 27: Surface 28: Screw 29: Through hole 30: Hydraulic pipe 31: Extension part 32: Other end 33: Hydraulic pipe V: Virtual straight line

Claims (6)

Transmission housing,
A release fork or an arm for driving the release fork, which protrudes to the outside of the transmission housing;
An assembly pedestal coupled to the outer surface of the transmission housing,
A cylinder body fastened to the mounting base,
A clutch slave cylinder having a rod elastically protruding from one end of the cylinder body in the axial direction and having a rod that abuts against the release fork or the arm,
At least two projecting pieces that project to the side of the cylinder body are provided, and the assembly pedestal has a projecting portion that abuts the projecting piece from a side opposite to one end of the rod. It said a virtual straight line protrusion connecting the contact surface of the one end and the projections intersect,
The projecting piece has a through hole into which a screw for fastening the cylinder body to the assembly pedestal is inserted,
The assembly pedestal is provided with a cylindrical boss having a screw hole for receiving a screw inserted through the through hole,
The clutch slave cylinder assembly structure, wherein the protrusion forms an arcuate wall projecting from the outer periphery of the cylindrical boss in the axial direction. Free end of said wall, assembling structure of the clutch slave cylinder according to claim 1, wherein the lower than the surface of the cylindrical boss side and opposite side of the protrusion. Transmission housing,
A release fork or an arm for driving the release fork, which protrudes to the outside of the transmission housing;
An assembly pedestal coupled to the outer surface of the transmission housing,
A cylinder body fastened to the mounting base,
A clutch slave cylinder having a rod elastically protruding from one end of the cylinder body in the axial direction and having a rod that abuts against the release fork or the arm,
At least two projecting pieces that project to the side of the cylinder body are provided, and the assembly pedestal has a projecting portion that abuts the projecting piece from a side opposite to one end of the rod. It said a virtual straight line protrusion connecting the contact surface of the one end and the projections intersect,
The clutch slave cylinder has a hydraulic pipe extending from the cylinder body,
The assembly structure for a clutch slave cylinder, wherein the assembly pedestal has at least one extending portion that extends forward of the hydraulic pipe in the vehicle front-rear direction. A pair of the extending portions are provided,
The clutch slave cylinder assembly structure according to claim 3 , wherein the hydraulic pipe passes between a pair of the extending portions. The transmission housing is provided on the vehicle body so that its axis is parallel to the vehicle width direction,
The assembly structure of the clutch slave cylinder according to claim 4 , wherein the assembly pedestal is provided on an upper portion of the transmission housing such that the extending portion is located on the most front side. The cylinder body is arranged such that the other end of the cylinder body is forward with respect to the one end from which the rod projects.
The assembly structure of the clutch slave cylinder according to claim 5 , wherein each of the tip ends of the pair of extending portions is arranged in front of the other end of the cylinder body.

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