JP2006220185A - Multiplate clutch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent each metal plate of both plates from fixing when a friction material is lost, and to be able to simply set inexpensively. <P>SOLUTION: A spacer mechanism is installed in a driven plate 1 so that the metal plates of substrates for the driven plate 1 and a drive plate 2 do not fix. In a regular working state, spacers 11, 12, 13 (a cylindrical member, a rod-like member) do not touch the next driven plate 1 owing to the thickness of the drive plate 2. When a lining 3 is lost, and the driven plate 1 is fixed to the driven plate 2, Fig. (b) indicates the state where the lining 3 is lost only for one side in the lowest state to fix. The fixation can be prevented by the drive plate 2 with the function of the spacers 11, 12, 13 (cylindrical member, rod-like member). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multi-plate clutch device that can reliably prevent metal plates of a driven plate (SP) and a drive plate (FP) from adhering when a friction material is lost.

In the multi-plate clutch device, for example, as disclosed in Patent Document 1, several driven plates (SP) and drive plates (FP) are alternately overlapped. The driven plate is a metal plate having splines on the outer side, and the drive plate is a metal plate having splines on the inner side, with a facing material pasted on both sides thereof. The multi-plate clutch is configured to be fastened or released by being activated or deactivated by the pressing force of the piston.
Japanese Patent Laid-Open No. 3-9119

  By the way, when the friction material of the multi-plate clutch is lost, there is a possibility that the metal plates of the driven plate (SP) and the drive plate (FP) are fixed to each other.

  In patent document 1, the thickness dimension of a spline part is set larger than the thickness dimension of another part. Thereby, the surface pressure which acts on a spline part is made low and generation | occurrence | production of wear is prevented.

  However, in Patent Document 1, when the spline portion is bent, the height of the spline portion of the driven plate is low and a certain amount of thickness must be maintained in order to maintain the heat mass. As a result, the bending process is performed, which may be costly.

  The present invention has been made in view of the above-described circumstances, and when the friction material is lost, the metal plates of both plates can be reliably prevented from sticking to each other and can be easily set. An object of the present invention is to provide a multi-plate clutch device that is inexpensive.

In order to achieve the above object, in the multi-plate clutch device according to claim 1 of the present invention, the driven plate and the drive plate are alternately overlapped, and are engaged or deactivated by the piston pressing force. In a multi-plate clutch device configured to be released,
The driven plate is provided with a spacer function so that the metal plate of the substrate of the driven plate and the drive plate is not fixed.

  The multi-plate clutch device according to a second aspect of the present invention is characterized in that the spacer is fixed by passing the cylindrical member through the convex portion for spline fitting of the driven plate and spreading it from both sides.

  The multi-plate clutch device according to claim 3 of the present invention is characterized in that the spacer is fixed by caulking the driven plate and the rod-shaped member through the rod-shaped member through the spline fitting convex portion of the driven plate. To do.

  The multi-plate clutch device according to claim 4 of the present invention is characterized in that the spacer is fixed by passing a rod-shaped member from one side of the spline-fitting convex portion of the driven plate and crimping the opposite side thereof. To do.

In the multi-plate clutch device according to claim 5 of the present invention, the height (T) on one side of the spacer is:
Tc + TL <T <Tc + 2TL
And where
T: height of spacer Tc: thickness of core plate of drive plate TL: thickness of lining of drive plate 2TL: thickness of two linings of drive plate

  The multi-plate clutch device according to claim 6 of the present invention is characterized in that there are a plurality of spacers on a circumferential spline, and the spacers are evenly arranged on the circumference.

  The multi-plate clutch device according to claim 7 of the present invention is characterized in that the spacer is set every other one of the driven plates when the driven plates are alternately overlapped with the drive plates.

  In the multi-plate clutch device according to claim 8 of the present invention, when the driven plate is alternately overlapped with the drive plate, the spacer is set so that the spline fitting convex shape portion of the driven plate is shifted in phase. It is characterized by not being in an overlapping place.

  The multi-plate clutch device according to claim 9 of the present invention is characterized in that the height (T) on both sides of the spacer is the same.

In the multi-plate clutch device according to claim 10 of the present invention, the height (T) on one side of the spacer is:
Tc + TL <2T <Tc + TL
And where
T: Spacer height 2T: Height of two spacers Tc: Drive plate core plate thickness TL: Drive plate lining thickness 2TL: Drive plate lining thickness It is characterized by.

  In the multi-plate clutch device according to an eleventh aspect of the present invention, the spacer is set such that when the driven plate is alternately overlapped with the drive plate, the convex portion for spline fitting of the driven plate is overlapped. Features.

  According to the present invention, since the driven plate is provided with a spacer function so that the metal plates of the driven plate and the drive plate are not fixed, when the friction material is lost, the metal plates of both plates are fixed to each other. It can be surely prevented. In addition, the spacer is fixed by extending the spline fitting convex portion of the driven plate from both sides through the cylindrical member, and the spacer passes through the rod member to the spline fitting convex portion of the driven plate. The driven plate and rod-shaped spacer are fixed by caulking, and the spacer is fixed by passing the rod-shaped member from one side of the spline fitting convex portion of the driven plate and caulking the opposite side. Therefore, it can be set easily and does not cost.

  Hereinafter, a multi-plate clutch device according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic cross-sectional view of a multi-plate clutch device according to an embodiment of the present invention.

  In the multi-plate clutch device, several driven plates 1 (SP) and drive plates 2 (FP) are alternately overlapped. The driven plate 1 is a metal plate having splines on the outside, and the drive plate 2 is a metal plate having splines on the inside, with facing materials 3 (friction materials, lining) pasted on both sides thereof. . In addition, facing material 3 (friction material, lining) may be alternately attached to one side of the driven plate 1 and the drive plate 2, and it can be fastened or released by making it act and inactivate by the pressing force of the piston 4. It is configured to be. Reference numeral 5 denotes a clutch drum, reference numeral 6 denotes a retainer plate, and reference numeral 7 denotes a hub.

  FIG. 2A is a partial perspective view of the driven plate according to the embodiment of the present invention, and FIG. 2B is a schematic view in which the driven plate and the drive plate are alternately overlapped.

  FIG. 3A is a cross-sectional view showing a fitted state between the driven plate and the spacer according to the embodiment of the present invention.

  The driven plate 1 is provided with a spacer function so that the metal plates of the driven plate 1 and the drive plate 2 do not adhere to each other.

  The spacer is fixed by extending the spline-fitting convex portion 1a of the driven plate 1 through the cylindrical member 11 from both sides. Therefore, it can be set easily and does not cost.

  Further, there are a plurality of spacers 11 (tubular members) on the circumferential spline, and they are evenly arranged on the circumference. Note that the protruding amount on one side of the spacer 11 (tubular member) is T.

  FIG.3 (b) is sectional drawing which shows the fitting state of the driven plate and spacer which concern on the 1st modification of embodiment of this invention.

  The spacer is formed by passing the rod-shaped member 12 through the spline-fitting convex portion 1 a of the driven plate 1 and caulking and fixing the driven plate 1 and the rod-shaped member 12. Therefore, it can be set easily and does not cost.

  In addition, there are a plurality of spacers 12 (rod-like members) on the circumferential spline, and they are evenly arranged on the circumference.

  FIG.3 (c) is sectional drawing which shows the fitting state of the driven plate and spacer which concern on the 2nd modification of embodiment of this invention.

  The spacer is obtained by passing the rod-shaped member 13 from one side of the spline-fitting convex portion 1a of the driven plate 1 and fixing the opposite side by caulking. Therefore, it can be set easily and does not cost.

  In addition, there are a plurality of spacers 13 (rod-like members) on the circumferential spline, and they are evenly arranged on the circumference.

  FIG. 4 is a perspective view of a driven plate according to a second modification of the embodiment of the present invention shown in FIG.

  When the driven plate 1 and the drive plate 2 are alternately overlapped, the spacer 13 (bar-shaped member) is not located at the overlapping position because the spline-fitting convex portion 1a of the driven plate 1 is set out of phase. This is because the spacer 13 (bar-shaped member) is attached and caulked so that when the spacer 13 (bar-shaped member) interferes with the back surface recess of the driven plate 1 set in front, the spacer function is disabled. This is to avoid becoming.

  FIG. 5A is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and is a diagram showing a normal operation state, and FIG. 5B is a schematic diagram in which the driven plate and the drive plate are alternately overlapped. It is a figure which shows a lining loss state.

The height (T) of the spacers 11, 12, 13 (tubular member, rod-like member) is
Tc + TL <T <Tc + 2TL
And where
T: Spacer height Tc: Drive plate core plate thickness TL: Drive plate lining thickness 2TL: Drive plate lining thickness

  In a normal operation state, the spacers 11, 12 and 13 (cylindrical members, rod-shaped members) do not contact the next driven plate 1 due to the thickness of the drive plate 2, but the lining 3 is lost, FIG. 5B shows a state in which the lining 3 is lost only on one side, which is the lowest state where the driven plate 1 is to be fixed to the drive plate 2, and the spacers 11, 12, 13 are shown in FIG. The function of (cylindrical member, rod-like member) can prevent sticking by the drive plate 2.

  FIG. 6A is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and shows a normal state, and FIG. 6B is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and the one-side lining loss state is shown. FIG.

  FIG. 7A is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and shows a one-side lining loss state, and FIG. 7B is a driven state according to a third modification of the embodiment of the present invention. It is sectional drawing which shows the fitting state of a plate and a spacer (it shows that the height of the spacer of both sides is the same).

  As shown in FIG. 7B, the spacer 14 is set so that the heights (T) on both sides thereof are the same.

As shown in FIG. 6A, the height (T) on one side of the spacer 14 is
Tc + TL <2T <Tc + TL
And where
T: height of spacer 2T: height of two spacers Tc: thickness of core plate of drive plate TL: thickness of lining of drive plate 2TL: thickness of two linings of drive plate

  The spacers 14 are set so that the spline-fitting convex portions 1a of the driven plate 1 overlap when the driven plate 1 and the drive plate 2 alternately overlap.

  In a normal operation state, the spacer 14 does not contact the next driven plate 1 due to the thickness of the drive plate 2 as shown in FIG.

  However, as shown in FIG. 6B, the lining 3 on one side is lost, and the driven plate 1 tries to adhere to the drive plate 2.

  At this time, as shown in FIG. 7A, the spacer 14 can prevent the drive plate 2 from being fixed to the driven plate 1 by the function of its height (2T).

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made. Needless to say, the present invention can be applied even when the spline directions of the driven plate and the drive plate are reversed.

1 is a schematic cross-sectional view of a multi-plate clutch device according to an embodiment of the present invention. (A) is a fragmentary perspective view of the driven plate which concerns on embodiment of this invention, (b) is a schematic diagram with which a driven plate and a drive plate mutually overlap. (A) is sectional drawing which shows the fitting state of the driven plate and spacer which concern on embodiment of this invention. (B) is sectional drawing which shows the fitting state of the driven plate and spacer which concern on the 1st modification of embodiment of this invention. (C) is sectional drawing which shows the fitting state of the driven plate and spacer which concern on the 2nd modification of embodiment of this invention. It is a perspective view of the driven plate which concerns on the 2nd modification of embodiment of this invention shown in FIG.3 (c). (A) is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and is a diagram showing a normal operation state, and (b) is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and one-side lining loss It is a figure which shows a state. (A) is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and shows a normal state, and (b) is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, showing a one-side lining loss state. It is. (A) is a schematic diagram in which the driven plate and the drive plate are alternately overlapped, and is a diagram showing a one-side lining loss state, and (b) is a diagram illustrating a driven plate according to a third modification of the embodiment of the present invention. It is sectional drawing which shows a fitting state with a spacer (it shows that the height of the spacer of both sides is the same).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driven plate 1a Convex part for spline fitting 2 Drive plate 3 Facing material 3 (friction material, lining)
4 Piston 5 Clutch drum 6 Retainer plate 7 Hub 11 Tubular member (spacer)
12, 13, 14 Bar-shaped member (spacer)

Claims (11)

In the multi-plate clutch device, wherein the driven plate and the drive plate are alternately overlapped, and are configured to be fastened or released by acting and non-acting by the pressing force of the piston,
A multi-plate clutch device, wherein a spacer function is provided on the driven plate so that the metal plate of the substrate of the driven plate and the drive plate is not fixed.   2. The multi-plate clutch device according to claim 1, wherein the spacer is fixed by passing a cylindrical member through a convex portion for spline fitting of the driven plate from both sides.   2. The multi-plate clutch device according to claim 1, wherein the spacer is fixed by caulking the driven plate and the rod-like member through a rod-like member through a spline fitting convex portion of the driven plate.   2. The multi-plate clutch device according to claim 1, wherein the spacer is fixed by passing a rod-like member from one side to a spline fitting convex portion of the driven plate and crimping the opposite side. 3. The height (T) on one side of the spacer is:
Tc + TL <T <Tc + 2TL
And where
5. T: spacer height Tc: drive plate core plate thickness TL: drive plate lining thickness 2TL: drive plate lining thickness The multi-plate clutch device according to any one of the above.   5. The multi-plate clutch device according to claim 2, wherein a plurality of the spacers are provided on a circumferential spline, and are arranged uniformly on the circumference.   4. The multi-plate clutch device according to claim 2, wherein the spacer is set every other one of the driven plates when the driven plates are alternately overlapped with the drive plates. 5.   5. The spacer according to claim 4, wherein when the driven plate alternately overlaps with the drive plate, the convex shape part for spline fitting of the driven plate is set out of phase so that the spacer does not overlap. The multi-plate clutch device described.   The multi-plate clutch device according to claim 4, wherein the height (T) of both sides of the spacer is the same. The height (T) on one side of the spacer is:
Tc + TL <2T <Tc + TL
And where
T: Spacer height 2T: Height of two spacers Tc: Drive plate core plate thickness TL: Drive plate lining thickness 2TL: Drive plate lining thickness The multi-plate clutch device according to claim 9.   11. The multi-plate clutch according to claim 9, wherein the spacer is set so that a convex shape part for spline fitting of the driven plate overlaps when the driven plate alternately overlaps with the drive plate. apparatus.

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