JPH0592543U - Clutch device - Google Patents

Abstract

(57) [Summary] [Object] It is an object of the present invention to provide a clutch device having a clutch drum which does not require a complicated working operation at the time of manufacturing, reduces the manufacturing cost, and improves the yield. . The clutch device of the present invention has a clutch drum composed of a disk-shaped member and a plurality of rod-shaped members fixed by being annularly attached to the member at predetermined intervals.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle clutch device, and more particularly to a clutch device in which manufacturing cost is reduced and yield is improved by simplifying a manufacturing process of a clutch drum.

[0002]

[Prior Art]

 As shown in FIG. 3, the conventional clutch device is located above the speed change mechanism unit 100 and is input to the input unit 3, which is fitted to the shaft 2 to which the driving torque is input, and the input unit 3. A clutch plate body 4 to which torque is transmitted, a friction plate body 5 to which torque is transmitted by contacting with the clutch plate body 4, a hub 6 fitted to the friction plate body 5, and a clutch plate body 4 And the friction plate body 5, which presses the friction plate body 5 based on the hydraulic pressure supplied from the outside, the clutch plate body 4, the friction plate body 5, the hub 6 and the hydraulic piston 7, and the extension of the axis of the shaft 2. The clutch drum 10 is provided on the outer periphery of the shaft 8 located on the line and fixed to the input unit 3 by a bolt 9.

A gear 1 provided on the shaft 2 is a gear for driving an oil pump (not shown), and an inner spline 17 provided on the shaft 2 is for taking out power to a PTO (power take-off). belongs to.

FIG. 4 is an exploded view of a conventional clutch device, in which projections 4a are formed on the outer periphery of the clutch plate body 4 at predetermined intervals. The protrusion 4a is sandwiched between conical plates 3a having through holes formed therein, and is supported by being penetrated by a supporting member 3b fixed to the input unit 3 by inserting a spring 3c.

Snap rings 6 a are provided on both side surfaces between the clutch plate bodies 4, and splines for fitting with the shaft 8 are formed on the inner circumference. The friction plate body 5 is interposed.

The hydraulic piston 7 has a seal ring 7 a on the outer circumference, the clutch plate body 4 and the friction plate body 5 are interposed between the hydraulic piston 7 and the input portion 3, and the through hole formed in the outer peripheral edge is used as the support member 3 b. It is slidably supported by penetrating it through and is pressed into the hydraulic circuit section 12 formed at the end of the clutch drum 10 by the repulsive force of the spring 3c.

The clutch drum 10 is formed by integrally forming a cylindrical outer peripheral portion 11 having one open side and a hydraulic circuit portion 12, and a protrusion portion of the clutch plate body 4 and a hydraulic pressure portion sandwiched by the conical plate 3a. A notch portion 13 that fits with the outer peripheral edge of the piston 7 is formed by notch processing.

The operation of the conventional clutch device having the above configuration will be described below. In FIG. 3, the torque transmitted to the shaft 2 is input to the input unit 3 of the clutch device and rotates together with the clutch plate body 4. At this time, since the hydraulic pressure is not acting on the hydraulic piston 7, the clutch plate body 4 is not in contact with the friction plate body 5, so that the torque is not transmitted to the shaft 8.

Here, when a predetermined amount of hydraulic oil is supplied to the hydraulic circuit section 12 from the outside of the clutch device, the hydraulic pressure in the circuit rises and the hydraulic piston 7 resists the repulsive force of the spring 3c. Protruding in the direction of the input part 3, the clutch plate body 4 is brought into close contact with the friction plate body 5.

Due to this close contact, the friction plate body 5 rotates together with the clutch plate body 4 to transmit torque. Therefore, torque is transmitted to the shaft 8 via the hub 6.

[0011]

[Problems to be solved by the device]

 However, according to the conventional clutch device, since the clutch drum has a cylindrical outer peripheral portion which is integrated with the outer peripheral portion, and the notch portion for fitting the clutch plate is formed on the outer peripheral portion, a working operation is required. There is a problem that the yield of raw materials is reduced and the manufacturing cost is increased. Therefore, an object of the present invention is to provide a clutch device having a clutch drum, which does not require a complicated working operation at the time of manufacturing, reduces the manufacturing cost, and improves the yield.

[0012]

[Means for Solving the Problems]

 The present invention does not require complicated processing work during manufacturing, reduces the manufacturing cost, and improves the yield. In order to reduce the manufacturing cost and to improve the yield, the disk-shaped member is fixed to the member by an annular attachment at a predetermined interval. Provided is a clutch device having a clutch drum formed of a plurality of rod-shaped members.

[0013]

[Action]

 According to the clutch device of the present invention, since the clutch drum is formed of a disk-shaped member and a plurality of rod-shaped members fixed to the member in an annular shape at predetermined intervals, the notch processing during manufacturing is omitted. .

[0014]

Embodiment 1 The clutch device of the present invention will be described in detail below with reference to an embodiment. The same reference numerals are attached to the portions having the same configurations as the conventional configurations, and thus the duplicate description will be omitted.

FIG. 1 shows a clutch device having a clutch drum 16 of the present invention. The clutch drum 16 is annularly arranged in a disc-shaped hydraulic circuit portion 12 and is formed by a rod-shaped member 14 fixed by a nut 15. The rod-shaped member 14 is fixed to the input portion 3 by tightening a nut.

FIG. 2 is an exploded view showing an embodiment of the clutch device according to the present invention, in which the rod-shaped member 14 improves the assembling accuracy when fixed to the hydraulic circuit unit 12 and fixed to the input unit 3. For this purpose, it is desirable to adopt a method of inserting and fixing a knock pin (not shown) into a threaded portion of a predetermined rod-shaped member 14, for example.

According to the clutch device having the above configuration, when the torque input to the input unit 3 is larger than that of the shaft 2, the number of the clutch plate bodies 4 and the friction plate bodies 5 is increased, and the support members 3b and The allowable amount of the clutch device can be easily changed by increasing the lengths of the spring 3c and the rod-shaped member 14 and replacing them.

Further, the cylindrical outer peripheral portion integrated with the disc-shaped hydraulic circuit portion 12 is not provided, and the rod-shaped member 14 is fixed by the nut 15 to reduce the weight of the conventional clutch drum. You can As a result, the momentum of inertia of the clutch drum can be reduced to reduce the shift force and improve fuel efficiency.

According to the clutch drum 16 described above, since complicated processing work at the time of manufacturing is not required, the manufacturing cost can be reduced and the yield can be improved.

[0020]

[Effect of the device]

 As described above, according to the clutch device of the present invention, the disk-shaped member to which torque is transmitted and the plurality of rod-shaped members that are fixed to this member by annular attachment at predetermined intervals are provided. The manufacturing cost can be reduced and the yield can be improved without the need for complicated processing work.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a clutch device according to an embodiment of the present invention.

FIG. 2 shows an exploded view of the clutch device of the present invention.

FIG. 3 is an explanatory diagram of a gearbox showing a position of a conventional clutch device.

FIG. 4 shows an exploded view of a conventional clutch device.

[Explanation of symbols]

1 Gear 2 Shaft 3 Input Section 3a Conical Plate 3b Supporting Material 3c Spring 4 Clutch Plate Body 4a Projection 5 Friction Plate Body 6 Hub 6a Snap Ring 7 Hydraulic Piston 7a Seal Ring 8 Shaft 9 Bolt 10 Clutch Drum 11 Outer Circumference 12 Hydraulic Circuit Part 13 Notch part 14 Bar-shaped material 15 Nut 16 Clutch drum 17 Inner spline 100 Transmission mechanism part

Claims (1)

[Scope of utility model registration request] 1. At least one first plate fitted to a clutch drum fixed to an input portion to which torque is transmitted, and by making surface contact with the first plate,
In a clutch device including at least one second plate to which the torque is transmitted, the clutch drum is fixed by a disc-shaped member and an annular attachment to the member at a predetermined interval. A clutch device comprising a plurality of rod-shaped members.