JPS59159431A - Clutch disc - Google Patents

Abstract

PURPOSE:To make improvements in both of machinability and operatability for assembling, by coupling a plate part and a boss part of a hub together in making them take a loose angle in between through spline connection, while installing a spring member in position between both plate and boss parts as well as in the plate part and a pair of drive plates each. CONSTITUTION:Both plates 5 and 6 are relatively and rotatably coupled together in an elastic manner through a spring member 2 of an elastic material 7, and one side plate 5 is engaged with a plate part 1a while the other side plate 6 is engaged with a boss part 1b. As for a spring member 12 acting on at the second stage, such a coil spring as being larger in a spring constant than that in case of the spring member 2 acting on at the first stage is used. When engine torque is transmitted to where it should be, one side plate 3' tries to rotate together with the other side plate 3, thereby compressing these spring members 2 and 12 in regular order, and consequently at the first stage, both the plate part 1a and the boss part 1b are relatively rotated as far as a loose angle, then the spring member 12 is compressed and vibration damping action at both the first and second stages thus takes place.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to a vehicle steering force transmission device, etc. 7. ,+
Regarding clutch discs.

Clutch discs are ideal for power transmission systems by effectively absorbing 4-flip vibrations generated from engines, etc. It is well known that a vibration damping device consisting of a compression spring and a friction damping means attached thereto is used in its entirety.Such a clutch disc vibration damping device is designed to reduce the stress generated in the power transmission system. ya: In order to absorb the wax noise and to transmit sufficient torque, in the small input torque range It is desirable to have characteristics that allow sufficient torque transmission with high rigidity.

Therefore, as shown in FIG. Between the /a and the boss part /'b, a spring member 2 for the first stage 11 is installed, and a pair of spring members 2 are provided between the plate plate /8 and the opposite sides thereof. When the clutch disc, which is made up of 1 digit, is also opened, the conventional In addition, 6) Clutch disc (!2+11 < , shown in Figure 2)
The spring member 2, which acts on the first JQI person, is formed on the plate part /a of the hub and the boss part /'0, and is directly interposed between the spline teeth /d and /θ. There were drawbacks as described below.

(1) In order to ensure the play angle θ, the spline tooth/13. , /e as part of the slack spooler
Non-two teeth / -a no, -/- pear, other 4'l (min spline teeth / dl / θ', biteable, y, etc., must be formed into meat, processing 1 raw) G.

(2) In practice, the work of interposing the spring member 2 between the spline teeth /d and le is extremely clumsy and the assembly work is quite poor.

The present invention has been made with the aim of eliminating all of the drawbacks of the prior art as described in 1.2, and its gist is a spring ff3 that acts in the first stage, as shown in FIG. 3 and the subsequent drawings.
2, a pair of left and right plates 5゜B, and these pairs of plates 5. / - is formed into a ring shape with an elastic member 7 which is located between the two and connects the two so as to be elastically rotatable relative to each other, and is fitted into one end of the boss Plate 5 - All hubs/D brake part/
9. The other plate A is engaged with the boss part /b.

In the first embodiment shown in Figures 3 to 81, a pair of left and right plates are formed into a ring shape, and the outer periphery of one plate 5 has the hub/
Spline tooth 5a that engages without play with spline tooth /d provided on plate portion /a of...! ;a is provided protrudingly,
In addition, the inner periphery of the other play) & [nj includes the boss portion/
A spline tooth 6a...Ot a lr" is provided to protrude and fit with the spline tooth/θ provided on plate 5 without any play. Also, the elastic material) is made of rubber into a ring shape having approximately the same diameter as the plate 5 and part B. radial grooves 7a...7 provided on one side and the other side ll'11 of the rubber elastic member 7.
radial protrusions 3 provided on one side of iIJ play) -, i, 7 b...j-b, <
b...tbf are fitted, and these pair of plates s, t
are elastically connected to each other by a monolithic moon 7 (made of rubber) for relative rotation ciJ. (formed by joining the spring member) is
Spline teeth 5a are fitted onto the outer periphery of one end of the boss portion /b and protrude from the outer periphery of the one plate 3-.
3a to the grate portion/a of the knob/a VC formed spline teeth/d.../d without any play;
In addition, by engaging the /ζ spline teeth Aa... formed on the inner circumferential surface of the other plate (J) with the spline teeth A7 and the spline teeth /e...1e formed on the boss portion /b without any play, the hub/ plate t'! 11 (i) It is designed to be added between a and boss part /b. In addition, g is) a single male sound of rate part /a (-01 of X inner circumference and boss part /b)
These four parts and 9 are formed by cutting out the tips of the splines @/d and iθ. 10. // is a stopper ring to prevent the spline joint from coming loose, /2 is a spring member that acts on the second leg, and the spring member /2 is A fill spring having a larger spring constant than the spring member that acts on the hub is used, and the coil spring is connected to the window sill provided on the plate part a of the hub and the drive plate J, Window installed in J'/3./It is housed in 3'./B is a pair of drive plates 3.?'
The rivets connecting /7 (Ba) are the main friction plates attached to one drive plate 3', /are the hub/ plate parts /a and the drive plates J,,? This is a friction damping device that is used as a friction damping means.

In such a configuration, when engine torque is transmitted to the clutch disc, one drive plate 3' to which the main 1 rotation plate/7 is added tries to rotate together with the other drive plate j, and the spring main τB -4A-6/2
is sequentially compressed to transmit the torque to the hub/.

At this time, when the drive plate 3o is rotated by 3"k, these first resist the spring force of the spring member J that acts in the first stage, and the spline teeth of the plate part/a of the front S/hub/a .../d is the spline tooth of the boss part/b/e...
・Until it engages with /e, h:+] Chikono1. By relatively rotating the plate part /a of the hub /a and the boss /bf by the play angle θ existing between the spline teeth /d and IO, ・4'
! t] - Vibration damping operation of the first stage (A region) shown in the figure
Generate all lJ. Yet another drive play 1...j,
,? ``Once the metal can be rotated, in the second step 11, the drive plate is compressed while compressing the spring member to be used; 3. ,
,? The positive damping action of 32 steps (area B) shown in FIG. 11 is generated by rotating the plate part /a of the hub and the hub by 11 pairs.

Figures 9 and 10 are the second super 1f of the present invention, 'i i!
/lj and 1. - In this embodiment, an arc-shaped wire spring f'l is used for the elastic material 7 that forms the spring acting at the 11th station i: 'IiI 4K -2, and -☆j of the wire spring is used.
jj 71 and the other end 7" were brought into contact with protrusions 3c and Ac provided on one side of plate J+g, respectively, and both plates S and B were made relative 1'1" 81 moving town 71 -9 It is also shown as a match. The other parts are the same as in the second embodiment.

As explained above, the plate part and the boss part of the j-sized hub of the present invention are spline-coupled by twisting the desired play angle, and the connection between the plate part and the boss part ('C
In the clutch disk in which all the spring members acting in the second stage and thereafter are attached to a pair of drive plates facing each other to the plate part of the hub and the two opposite sides, A spring member that acts in the Y-th installation 1P is placed between a pair of left and right plates and between these pairs of plates to elastically rotate them relative to each other I-i]'
The plate is formed into a ring shape with an elastic material that can be bonded to the boss portion, and is fitted onto the outer periphery of one end of the boss portion, and the one plate is locked with the plate of the hub, and the other plate is connected to the boss portion. (Since it has been made into 1 and 4 compositions, there are U-Song dynasties as described below.

(1) Spring part that acts at the J stage as in the past (a part of the spline tooth is formed thin in order to deepen the O)
This eliminates the need for filtration processing, improving workability.

(2) Compared to the conventional arrangement in which the spring member is interposed between the spline teeth, the spring member can be easily attached, and the assembly work efficiency can be improved.

[Brief explanation of the drawing]

No. 1 is a cross-sectional view of a conventional clutch disc.
: Figure A2 is a longitudinal sectional view of the clutch disc of the first embodiment of the present invention, and Figure 1 (is a main part of the plate part of the hub).
91≦ cross section [S], 5th, '8s: What A is the side of one plate [1. -88B is the 1lil1 face term of the Boulin i'L material, and Figure 8C is the 1! of the external force plate.
(J side view, Figure 9 is the second part of the present invention: ! A cross-sectional view of the unusual clutch de/f valve, Figure 10A, oil side view of the it-force plate, and Figure 10B ( zu, Jj to death material l1
Figure 10C is a one-law surface diagram of the other force plate,
Figure 114 (・Soil characteristic diagram. /...Hub, /a...Plate part, /b...Boss part, /d,, /e...Spline teeth, Co...No. Spring members that act in the first stage 1.,?,,3'...drive plate, l./-2...th: Spring members that act in the second stage and after the first floor, 5
, 3 ridge plate, 7...51 deformed material. □-i Figure 8 (A) Figure 9'\ b-

Claims (3)

[Claims] (1)...The great part and the homo part of the plate are all spline-coupled with the desired play angle. The plate part of the hub and one drive plate Vil facing on both sides thereof: In a clutch disc in which all the spring members that act in the second stage and after are attached, the spring members that act in the first stage are attached to the left and right pairs of plates. and,
Between these pairs of plates (with an elastic H that elastically connects them so that they can rotate relative to each other), they are formed into a ring shape,
-), ii4 part outer periphery of the boss part and πI
Note: Connect one plate to the plate portion of the hub.
, and a clutch disc in which the other sign is that a force plate is locked to the boss portion. (2) The clutch disc according to claim 1, wherein the elastic material is made of rubber. (3) The clutch disc according to claim 1, wherein the elastic material is formed of a wire spring.