JPH0637631U - damper - Google Patents

Abstract

(57) [Summary] [Purpose] A damper in which the spring and the elastic member are housed in the same frame to effectively utilize the characteristics of both, and to increase the low spring constant and shock absorbing function. [Structure] A pair of integrally connected side plates 1 and 2 are provided on both sides of an annular flange 4 of the hub 3, and the side plates 1 and 2 and the annular flange 4 are provided in respective circumferential directions. In the damper 7 which is mounted in the window hole 5 to transmit the engine torque from the flywheel to the output shaft via the clutch desk 6, each damper 7 is divided into two parts.
A sheet 1 composed of one annular elastic member 8 and one spring 9 and bonded to the outside of the opposing elastic member 8.
A spring 9 is internally provided between 0 and 10 so that the space between the elastic members 8 and 8 is appropriately held in the clearance α when the elastic member 8 and 8 are mounted. [Effects] Non-linear torsional characteristics can be obtained with a simple structure, and since many elastic members can be arranged, the surface pressure can be made relatively small. Furthermore, since the same parts can be equally distributed on the circumference, a large-capacity damper is possible and the rotation balance is good.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a damper that is mounted on a clutch desk between an engine and a power line and has a good torsion characteristic by using an elastic body and a spring together.

[0002]

[Prior art]

 Conventionally, for example, as shown in FIGS. 5 and 6, it is mounted on a clutch desk 6 between a flywheel 21 provided on the crankshaft side of an engine and a transmission side serving as an output shaft 22. The damper has a pair of side plates 1 and 2 integrally connected to each other on both sides of the annular flange 4 of the hub 3, and a plurality of dampers are provided in the circumferential direction of the side plates 1 and 2 and the annular flange 4, respectively. Instead of the torsion spring 23 or the torsion spring 23 in each of the window holes 5, for example, a rubber-like elastic member 24 disclosed in Japanese Utility Model Laid-Open No. 3-114632 is attached to the side plate. -Toggle 1 and 2 and annular flange 4 are connected. In this case, it is either the spring 23 or the rubber-like elastic member 24 arranged in place of the spring that provides the torsional rigidity.

[0003]

[Problems to be solved by the device]

 However, in such a damper, when only the spring is arranged, the spring constant is linear as shown in Fig. 8. Therefore, if the torsion angle θ is increased in order to secure a certain damper torque capacity, it is proportional to this. The spring constant also increases, and thus the resonance rotation increases. Therefore, if the spring has a two-stage or three-stage characteristic, as shown in FIG. 9, the number of types of springs increases and the structure becomes complicated. On the other hand, when a rubber-like elastic member is used together, good non-linear characteristics are obtained as shown in Fig. 10, but a large stopper torque capacity cannot be obtained due to the proof stress of rubber, and the rotation balance is poor and vibration Is likely to occur. On the other hand, when only rubber is used, the large deflection cannot be obtained, and the large twist angle cannot be obtained. There is a spring with rubber modified to improve this, but it has the drawback that a large volume cannot be obtained because the rubber volume cannot be made large.

In view of the above, the present invention provides a damper that allows a spring and an elastic member to be housed in the same frame to effectively utilize the characteristics of the spring and the elastic member, and has a low spring constant and a large shock absorbing function. The purpose was to eliminate the drawbacks of the.

[0005]

[Means for Solving the Problems]

 As a means for solving the above-mentioned problems of the prior art, the present invention provides a pair of integrally connected side plates on both sides of an annular flange of a hub, and the side plates and the annular flange have respective circles. A damper which is installed in each of the windows provided in the circumferential direction so that the engine torque is transmitted from the flywheel to the output shaft via a clutch desk. Each damper is composed of two annular elastic members and one It comprises a single sling, and the spring is installed between the sheets adhered to the outer sides of the facing elastic members, and the two elastic members are appropriately held in a gap when mounted. To do.

[0006]

[Action]

 According to the above configuration, when the torsion angle of the damper is small, torque is generated by the spring reaction force of the spring, and when the angle is increased to a certain extent, the gap between the elastic members is closely attached to generate high rigidity.

[0007]

【Example】

 1 to 3 show an embodiment of a damper according to the present invention, FIG. 1 is a front view of mounting the damper, FIG. 2 is an enlarged view of P portion of FIG. 1, FIG. 3 is a detailed sectional view of FIG. FIG. 3 is a torsional characteristic diagram of the damper according to the present invention.

Hereinafter, the present invention will be described with reference to the embodiments shown in FIGS. In the present invention, the same parts as those shown in FIGS. 5 and 6 are designated by the same reference numerals as those in FIGS. A pair of side plates 1 and 2 that are integrally connected are provided on both sides of the annular flange 4 of the hub 3, and the windows are provided in the circumferential directions of the side plates 1 and 2 and the annular flange 4, respectively. In a damper mounted on the hole 5 so as to transmit the engine torque (not shown) from the flywheel to the output shaft via the clutch desk 6, each damper 7 is provided with two annular elastic members 8 and one. The spring 9 is installed between the sheets 10 and 10 which are bonded to the outer side of the elastic member 8 facing each other. It is held in the gap α.

A plurality (six in the embodiment) of the window holes 5 are provided in the circumferential direction, and a damper 7 is mounted in the circumferential direction in each of the window holes 5. In the damper 7, one spring 9 is inserted on the inner diameter side of two elastic members 8 made of rubber or the like in series, and both ends of the spring 9 are in contact with the sheets 10 and 10 adhered to the outside of the elastic member 8. It is like this. The sheet 10 is formed by integrating a cylinder 10a and a circular plate 10b. The cylinder 10a has a thickness to be inserted on the inner diameter side of the elastic member 8, and the circular plate 10b has a larger diameter than the elastic member 8. It is sized to adhere to the side of the. The elastic members 8 when the damper 7 is mounted in the window hole 5 are mounted so as to have a gap α as appropriate.

Next, the operation will be described. As shown in FIG. 4, when the torsion angle θ of the damper 7 is small, a low torque T is generated by the spring reaction force (low spring constant) of the spring 9, and when it is increased to a certain extent, the gap α between the elastic members 8 is increased. It disappears and sticks together, resulting in high rigidity. That is, a low spring constant and a high shock absorbing capacity when a peak is generated can be obtained.

[0011]

[Effect of device]

 As described above, according to the present invention, a pair of integrally connected side plates is provided on both sides of the annular flange of the hub, and the side plates and the annular flange are provided in respective circumferential directions. A damper, which is mounted in a window hole to transmit engine torque from a flywheel to an output shaft via a clutch desk, each damper being composed of two annular elastic members and one spring. Then, the spring is installed between the sheets that are bonded to the outer sides of the opposing elastic members, and the elastic members are held in appropriate gaps when the elastic members are mounted. In addition, since many elastic members can be arranged, the surface pressure can be made relatively small. Furthermore, since the same components can be evenly arranged on the circumference, a large capacity damper is possible and the rotation balance is good.

[Brief description of drawings]

FIG. 1 is an explanatory view of a front side of a damper attached according to the present invention.

FIG. 2 is an explanatory diagram of an enlarged P portion of FIG.

FIG. 3 is an explanatory diagram of a cross section of FIG.

FIG. 4 is an explanatory view showing a twisting characteristic of the present invention.

FIG. 5 is an explanatory side view showing a conventional damper device.

FIG. 6 is an explanatory view showing the front of FIG.

FIG. 7 is an explanatory diagram of a rubber-like elastic member in a conventional damper.

FIG. 8 is an explanatory diagram showing a torsion characteristic of a conventional spring (in the case of one step).

FIG. 9 is an explanatory diagram showing a torsion characteristic of a conventional spring (in the case of three stages).

FIG. 10 is an explanatory diagram showing a torsion characteristic when a rubber is used together with a conventional spring.

[Explanation of symbols]

 1 side plate 2 side plate 3 hub 4 annular flange 5 window hole 6 clutch desk 7 damper 8 elastic member 9 spring 10 seat α appropriate clearance

Claims (1)

[Scope of utility model registration request] 1. A pair of side plates integrally connected to each other.
Are provided on both sides of the annular flange of the hub, and are attached to the window holes provided in the circumferential direction of the side plate and the annular flange, respectively, and the engine torque is transmitted from the flywheel to the output shaft via the clutch desk. In the damper configured to transmit by means of the above, each of the dampers is composed of two annular elastic members and one spring, and the spring is interposed between the sheets adhered to the outer sides of the elastic members facing each other. A damper characterized by being internally mounted and holding an appropriate gap between both elastic members when mounting.