JPS59159432A - Clutch disc - Google Patents

Abstract

PURPOSE:To aim at a distinct improvement in wearproofness, by setting up both of a first friction material being organically coupled with an antislipping agent of an inorganic substance or synthetic resins or the like as a main component and a second friction material being organically coupled with a metallic substance as the main component on almost the same frictional contact surface all together. CONSTITUTION:Friction surface plates 10 and 10 consist of the following formation that both of a first friction material 11 being organically coupled with an antislipping agent of an inorganic substance or synthetic resins such like asbestos or glass or silicon carbide otherwise as a main component and a second friction material 21 being organically coupled with a metallic substance as the main component are set up on almost the same friction surface, and the second friction material 21 is set up on a friction surface part of the first friction material 11 so as to cause plural friction surfaces to be exposed in a stepping- stone manner. The gross area of a friction surface 21a in the second friction material 21 is suitable to be about 5-25% of the area of a friction surface 11a of the first friction material 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clutch disk, and more particularly to a clutch disk used in a clutch in which two engagement surfaces are brought into contact with each other so as to transmit UJ force.

In general, clutch discs, especially clutch discs used in automobile clutches, mainly perform the function of transmitting power from the +tSi side to the wheels, but when the vehicle is started, it is engaged (half-clutched). It is known that since power is transmitted during the movement, heat is generated due to friction, and the contact surface of friction 4) or the engagement surface of the mating member is abraded.

In addition, the clutch disc used in an automobile clutch also has the function of appropriately connecting/disconnecting the transmission state between the engine and the vehicle transmission when the gear transmission changes speed.
It is also known that the weight of the clutch disc itself affects the synchronization action since it is usually connected to the input shaft of a synchronized Ota combination transmission.

When examining a clutch disk with a long life considering the frequency of use of the clutch or the amount of power transmitted,
Sintered alloys can be used as friction materials, but because they have excellent wear resistance, they are also heavy due to the fact that they are based on metal.
The time for the action of the same 1 and 1 becomes longer, and the shifting performance of the 31Jl gearbox is reduced by (!!; -1').Furthermore, since the base material is metal, the engagement of the mating member is On the other hand, it is important to consider the frequency of use of the clutch or the magnitude of the transmitted power, and also take into account the direction of the gear shift of the synchronous mesh transmission. When the clutch disk is inspected, the friction material is asbestos, glass, or silicon carbide.
The so-called organic resin system (onrundum), etc., or the so-called organic resin system (onrundum), etc., or the so-called organic resin system (used in the form of powder, grains, fibers, etc.), which is mainly composed of non-alloy materials such as
(organic resin type) friction material is applied. When this organic resin-based friction material is used, the friction coefficient is similar to that of the material and the weight is small, so the phenomenon observed with sintered alloy-based friction materials does not occur, but the degree of wear is very low. It is not enough to say that

In view of this point, various companies have proposed arranging both friction materials on substantially the same friction surface to form a friction face plate. The main type is one in which sintered alloys arranged at a predetermined distance on a metal back 1k are surrounded by an organic resin friction material (for example, Japanese Patent Publication No. 47-13807 Publication +13
(as proposed in C), four parts were bored in the friction surface of the organic resin friction material, and the sintered alloy was buried in the recesses gB (C).
For example, the one proposed in 1 of Japanese Patent Publication No. 55-6780), the one in which a sintered alloy is fixed to the head of a stud etc. that fixes an organic resin friction material to the back plate (for example, the one proposed in Japanese Patent Publication No. 55-6780) −
No. 22651 (as proposed in the 10th and previous trowels), each side of the buffer backing plate (1 and 2 identical rings).

For example, an example of a method in which organic resin friction materials and sintered metal friction materials (1) are alternately arranged on a circular disc to form an annular approximately same -INJg surface is disclosed in Japanese Patent Application Laid-Open No. 51134960. (as proposed in 2013), on both sides of the back plate, a self-made resin type 19 friction plate and a sintered metal type friction plate are arranged, and the shields on both sides of the back plate are made of friction material of the same Q1010 quality. (For example, the one proposed in Japanese Utility Model Publication No. 53-142645) etc. 0 Furthermore, there are also 19-brake parts for braking devices (For example, the one proposed in Japanese Utility Model Publication No. 45-6570, Japanese Patent Application Publication No. 5
0-11.3675) Various proposals have been made.

The present invention provides a crunch task that can be applied to the various types of friction face plates described above and that reduces the disadvantages of using the above-mentioned sintered metal thread friction material to a mere 100%. . One aspect of the present invention is that, in a clutch which is pressed against a retaining surface and transmits J-linoka, the 1,1Q friction face plate is mainly made of an inorganic material such as asbestos, glass, or silicon carbide, or a friction material such as a synthetic resin, and is organically bonded. A clutch disc comprising a first friction material made of a metal material and a second friction material made of a metal material and organically bonded to each other on substantially the same -P contact surface to constitute a friction face plate. , organic resin friction material and sintered alloy friction material are arranged on the contact surface to form a friction face plate, which has improved wear resistance and lower inertial mass. Furthermore, the so-called aggressiveness that accelerates the wear of the engaging surfaces of the members of the Todo can be extremely reduced, and the durability can be greatly improved.

A preferred form for carrying out the present invention is as follows:
The following things are -J two stolen.

(1,) In the clutch disc according to the configuration described in the claims, the second friction + M kA 16 mm contact surface is 5 to 40% of the friction contact surface of the first friction material. A clutch de isk characterized by.

(2. In the Kura Sochi disk according to the configuration described in the claims, the second friction 84 is made of any metal material in the form of metal fibers, metal powder, metal particles, or fully bent scales, or A clutch disk characterized in that it has a composition in which a mixture of any of these is used as a base material and is distributed in a proportion of 20 to 40 volume (hereinafter referred to as stacking volume).

(3) A clutch disk according to item (1) above, characterized in that the second friction material or the metal fiber as the metal substance is used as a base material and has a composition in which the bulk volume is distributed between 22 and 32%.

(4) In the clutch disc according to the configuration described in the claims, the first friction material has a composition of asbestos fiber as a base material with a weight ratio of 45 to 65%, and the second friction material 25～ using metal m fiber as base material
A special 1N clutch disc with a composition that distributes 30F weight and weight.

(5) In the clutch disc according to the configuration described in claim 7, the second frictional gain is equal to the first 1! ;'1
A plurality of rod oscillation surfaces are exposed 1 to 1 in the shape of stepping stones at the lf 4 joint contact part 1 of month i, and the second friction (♀ = 1fibt of the rod oscillation surface in A is the rod of the first friction material. 5~ of the area of the deflection surface
A clutch disc characterized by 25%.

(6) In the clutch disc according to the configuration described in the claims, the first friction +A is applied on the annular disc.
(!: The second friction material is arranged alternately to form an annular substantially identical rod vibration surface, and the total area of the rod vibration surface of the second friction material is the rod vibration surface of the first friction material. A clutch disc characterized in that the area is 20 to 40% of the area of the clutch disc.

(7) In the above item (5) or song 6), the first friction
v +, i is a composition in which 45 to 65 weight percent is distributed using cotton fiber as a base material, and the second friction material is a metal fiber Aif: based on 2j, and a bulk volume percentage of 25-3o. A clutch disc characterized in that it has a distributed composition.

(8) In the above item (5) or (6), the first friction material is made of glass fiber as a base material and has a composition with a weight ratio of ζ20 to 45, and the second friction material is made of metal fiber as a base material. A clutch disc characterized in that it has a composition in which the bulk volume is distributed by 25-30%.

(9) A clutch disk characterized in that the second friction material has a specific gravity of 3.0 to 3.5, in accordance with items (1) to (7) above.

0) A clutch disc characterized in that in the above items (1) to (9), the metal material of the second friction material is iron, iron alloy metal, copper, copper alloy metal, or cast iron.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1st
Figures 3 to 3 show an example of a clannade isk according to the present invention, in which a friction face plate 10, 10 is fixed to the outer periphery of a plate member 1 on one side, sandwiching the flange 2. A main side plate 3 is arranged on the resilient plate 5 fixed with studs 6, and a cJ sub-side plate 4 is arranged on the other side so that it can rotate integrally with the main side plate 3. They are connected to each other by studs 7, and these form a driving side plate member 4 and 2, and are rotatably movable relative to each other by carving 7 on the drive side member +A1. Between this drive side plate member and the driven side part +4, each of the bullet 1 unit part and t (9 is 3. - base part 2, "2 side handling 3. secondary side IL) 4 that constitute the shock absorber The bullets 16 are appropriately arranged in storage windows 2a, 3a, and 4a formed in the housing windows 2a, 3a, and 4a.
This is the relative rotational movement between the side plate part and the driven side member.

A friction disc 8 is sandwiched between the main side plate 3 or the sub side plate 4 constituting the drive side plate member and the collar portion 2 of the plate member 1. If necessary, an elastic member, a pressing plate, or the like is provided to maintain the clamping force of the friction discs 8 at an appropriate value.

The friction P face plate 10.1'0 is mainly composed of a first friction material 11 which is organically combined with a friction material made of an inorganic material such as asbestos, glass, or carbon carbide, or a synthetic resin, and a metallic substance. The second friction that is organically combined” 21
2 are formed by disposing them on substantially the same -=- rod deflection plane, and the second
The friction material 21 is disposed on the oscillating surface portion of the first 1.5 mm 11 so as to expose a plurality of oscillating surfaces in the form of stepping stones. The total area of the +=contact surface 21a of the second friction material 21 is preferably set to 5 to 25 percent of the area of the LSI surface a of the first friction +111. Further, the second friction material 21 is
The collar part 1 of the i-set 15 etc. which fixes the friction material 11 to the elastic plate 5
6, and the first III is housed in the four parts 12 formed at +A'll. Note that the hole 13 formed on the back of the rivet 1 is an escape hole to avoid interference with the occiput 17 of the rivet 15.

FIG. 1 shows another example of a friction disk according to the present invention, which differs from the one shown in FIGS. 1 to 3 in the configuration of the friction face plate 10.10. everything else is the same. The differences will be explained below.

The friction face plate (10) has a first friction material 11 and a second 19-hole cedar 121 arranged alternately on the same annular circle W20 located on each side of the elastic plate 5. It forms the same rod deflection surface and has 7 points. The total area of the deflection surface of the second friction material 21 is 20-40% of the area of the I-contact surface of the first friction material 11.
Bar 4: It is better to be considered as a nerd.

The first friction material IJ and the second friction material 21 are fixed to the elastic Jff 15 by separate attachment studs 18 and 28, respectively. Symbols 12 and 22 are recesses 9IH1 that accommodate the flanges of the mounting studs 18 and 28, and symbols 8-13 and 23 are the mounting rivets 18.
and 28. It shows an escape hole to avoid interference with the back of the head.

The first friction element 11 constituting the 1γ friction plate 1010 of the clutch disc having the above structure preferably has the following composition.

Examples of [asbestos] containing 45 to 65% by weight) (L
As-1> Asbestos 50% by weight wood
Fat 10% by weight Rayon
10% by weight Barium sulfate 14% by weight Other additives 16% by weight (Friction material AS-2) Asbestos 50% by weight Phenol thread resin 20% by weight Kash resin 10% by weight Barium sulfate 20% by weight Others, asbestos-based friction element A Alternatively, 4) proposed by one of the authors below may be used.

■Unexamined Japanese Patent Publication No. 53-056249 ■Unexamined Japanese Patent Publication No. 107487 No. 1974 ■ Unexamined Japanese Patent Application No. 56-063123 No. 174956 [Contains mainly glass (contains 20 to 45% by weight) - Example] (Mat?
,, (8c D-1> Glass: f-35% by weight Resin 10% by weight
17% by weight barium sulfate
17 Weight % Other additives 21 Weight % Other additives for grinding the vitreous nide body may be those proposed by the applicant in Japanese Patent Application No. 171632.

[Example of porcelain-based material (containing 20-45% weight)] As a glass-based friction material, the above-mentioned one is disclosed in Japanese Unexamined Patent Application Publication No. 54-08
It was proposed in No. 0351. The composition will be exemplified below.

(Friction material CE4) Ceramics 35% bleached resin 15% by weight Cashew
6 Weight% Com 6
Weight % Krafay 1-8 Weight % Halium sulfate 18 Weight % Copper powder 21 Weight % In addition, glass-based glass 1 of various compositions can also be used.

In addition, the second friction material 2 constituting the friction face plate 10.10
1 preferably has the following composition.

"Example of mainly metal (containing 20-40% volumetric volume)" (Friction material MEO) Metal substance 22-32% volumetric volume Resin
16-28 Volume % own machine dust 10-2
2 Volume % Inorganic filler 7-17 Volume % Graphite 17-29 Volume % The physical properties of this type of friction material include specific gravity 3.0-3.5, and hardness (HRs)
It is 50-80.

Using fibers of iron-based metals as the metal, the following formulation example (9% by weight) or above is recommended.

(No.I Sekizai ME-1> Iron metal fiber 55-63% by weight Resin 5-9% by weight Organic dust 3-9% by weight Soil warming material 13-22% by weight Physical properties: Specific gravity 3.2 Hardness (HRs) 65 Other metal-based friction materials may also be those proposed by the author mentioned below.

■Unexamined Japanese Patent Publication No. 54-080352 ■Unexamined Japanese Patent Publication No. 56-161429 (・) 4 ■ Unexamined Japanese Patent Application No. 57
-040134 Publication Furthermore, the applicant has proposed the following.

■Japanese Patent Application No. 56-171630 ■Japanese Patent Application No. 56-174957 Next, an example will be described in which these friction +] are applied to a clutch disk having a construction of 7.

(Friction face plate in the configuration shown in Embodiment 1 and FIGS. 1 to 3), 0. i
o is inner j\], 4.5 i + 11, outer diameter is 225 order outer diameter, so-called 9 inch annular plate, the above-mentioned ΔS-1 is the first friction 44'll, and the above-mentioned friction material 21 of Clause 2 is used. M
The total area of 1a is the deflection surface 1 of the first friction material 11 ], a
Clutch disc with approximately 10% of 7.

<Embodiment 2> In the configuration shown in FIG. 4, the friction face plates 10, 1.0 are so-called 10
inch or more (outer diameter 260 mm or more as specified in JIS D 4311-.1975), and AS-4 as described in +ii+ is used as the first friction material 11. TV in Clause 2: l' as described above as the vibration material 21, 41F, -1, the second friction 1 is (total area of the oscillation surface 21a of A21, 1lIHo% of the oscillation surface 11a of the first friction material 11 and 1- again clutch disc.

This is how the latch disk works IAg'th 1!
1- and 2 were subjected to a wear test, and as shown in Table 1 and FIG. 5, the results obtained were very good in practical use as clutch discs.

As a comparative example, the following three items are collected on the upper axis i.
62 to hit the ceremony.

Comparative Example 1> The same size (9 inches) as in Example 1 was used, and the friction face plate was entirely made of the above-mentioned As-1.

Comparative Example 2 Same configuration as Example 1, and 7 size was 9 inches, and as the first friction material, the above-mentioned △s-1 was used as the 1 ■ friction material of Clause 2, and 7 was made of copper-based sintered bond described below. Gold 4As+-1 is used, and the total area of the deflection surface of the second friction material is approximately 1 of the deflection surface of the first friction material.
Clutch disc set to 0%.

Comparative Example 3> An air vibration surface having approximately 40% of the area of the annular surface was formed in the annular surface of the same size (9 inner) as in Example 1, and a copper-based sintered material, which will be described later, was used as a friction material. Clutch disk using bonded metal 4,1S1-1.

Here, an example will be given of an i-to-j-based sintered alloy material that has been widely used as a friction material for metallic clutch discs.

[Example of sintered metal (containing 40-75% by weight)] (1!
Miwi 4 S l-1) Copper 62 Weight% Iron
8 Weight % Tin 7 Weight % Lead
12 Short leg% graphite
7 Weight% silica sand 4
Weight% (Friction material 5I-2) Copper 65 Weight% Oblique K io
Weight% Lead 5 Weight% Graphite 10 Vehicle weight% 1iJ
Sand 5% by weight Aluminum-J
5 In Table 1, the friction coefficient and wear amount are measured using an inertial dynamometer (trowel at 150°C).
The 1l111 shudder property is the actual friction) installed in the vehicle, then the actual vehicle was tested, and the 5-step meter (+tti) was added. Figure 2 shows the results of measuring the amount of wear for each coefficient number.

In Example 2, it was possible to obtain approximately the same performance of γ as in Example 1. (Measurement results are omitted.) As is clear from the above, according to the present invention, in the clutch Q which is pressed against the engagement surface to transmit power, the friction face plate is made of asbestos, nitrate, silicon carbide, etc. The first one, which is mainly composed of inorganic substances or synthetic resins and is organically combined with J!
♀: 14S material and gold! By configuring the friction plate 1 by arranging the second friction material which is organically bonded mainly with a substance on the same vibration surface, the resin-based friction material (4 and the sintered alloy-based friction material The wear resistance can be greatly improved compared to a friction face plate in which friction plates are arranged on approximately the same vibration plane.Also, compared to sintered alloys (specific gravity 6.0 to 6.5), metal Friction material (specific gravity 3.0-6.
5) Since it is lightweight, the inertial mass of the clutch disc (2) can also be reduced, and the shifting and handling of the transmission can be improved. Furthermore, the so-called aggressiveness, which promotes the wear of the engagement surface of the mating part, can be extremely reduced, and the durability can be greatly improved.

Although this is an example in which the present invention is applied to a J-F L clutch, it can be modified and modified as appropriate without departing from the spirit of the present invention as a brake wear material.

It goes without saying that the present invention is not limited to the embodiments, and can be implemented in various configurations such as those described in 7 above as appropriate without departing from the spirit of the present invention. It can be modified and implemented.

(1 bottom margin > -m=--- −−−−−−1□−−−−−−−−−
−−−−−−−−−−1−−−−−−−−・/2・′ / 7/ / / / / /′ / / /′ / 2/ /″ / /′ 7/′ /

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the clutch disc according to the present invention, Fig. 2 is an enlarged view of the face sink portion of Fig. 1, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a main body. FIG. 5 is a sectional view showing another embodiment of the clutch disc according to the invention, and is a comparison diagram showing the results of an 8i'C test between a conventional clutch disc and a clutch disc according to the invention. Explanation of symbols In the L-ji 1, 1 is the grain member, 2 is the flange of the grain member, 3 is the main side plate, ・The mouth and the secondary side plate, ri is the elastic plate, 6 is the stud 7 that fixes the elastic plate to the main side plate 8 is a friction plate that connects the main side plate and the secondary side plate, 10 is a friction face plate 1 is the first friction material 11, -] is the friction bar 21 is the second friction material 21a Show each side. Patent Applicant 1 Ishishi Sekiryashiki G Company Representative Comment Reito Nakai

Claims (1)

[Claims] In a clutch that transmits power by being pressed against the engagement surface,
The friction face plate is made of an inorganic material such as asbestos, nitric acid, or silicon carbide, or a material such as a material resin, and is organically combined with a first friction plate which is geometrically connected and is organically combined with a metal fiber as a main body. A clutch disk formed by disposing a second friction moon formed by a g and a second friction surface on substantially the same friction surface to constitute a g++y surface treatment.