CN100374751C

CN100374751C - Clamping device

Info

Publication number: CN100374751C
Application number: CNB011219319A
Authority: CN
Inventors: 光和男
Original assignee: Sanyo Kogyo Co Ltd
Current assignee: Sanyo Kogyo Co Ltd
Priority date: 2001-06-20
Filing date: 2001-06-20
Publication date: 2008-03-12
Anticipated expiration: 2021-06-20
Also published as: CN1392353A

Abstract

The present invention relates to a clamping device with a body (1). The body is formed by connecting a pair of half bodies (1a) by a fixing part (3), wherein a friction plate unit (U) is simultaneously pressed in an elastic way in a direction away from a disk sheet (3) and in a rotation direction of the disk sheet (3) by a first spring (11); the other friction plate unit (U) is pressed in an elastic way in opposite directions of the direction away from a disk sheet (3) and the rotation direction of the disk sheet (3) by a second spring (12).

Description

Holding device

Technical field

The present invention relates to a kind of holding device.

Background technique

In traditional holding device, each backplate of two friction means is arranged for disc of clamping, this backplate is provided with a flexible groove part, when pressed part is return, each projection of pressed part hooks groove part so that friction means and disc are separated, be positioned at one of two friction means on the disc both sides and push by an elastic member along the sense of rotation of disc, and in these two friction means another along with the direction of this direction of rotation by another elastic member pushing.

Many parts in the above-mentioned conventional holding device are expensive, and be separately positioned on the pressed part and an elastic member is arranged on each push part along different directions respectively owing to be used to return the device of friction means, so the structure of above-mentioned conventional holding device is complicated.

US-5,950,772; US-5,310,024; US-5,511,638; US-5,249,647 disclose a kind of holding device separately, but they fail to solve the problems of the technologies described above.

Summary of the invention

Therefore, in order to address the above problem, the purpose of this invention is to provide a cheap holding device that has simple structure and seldom measure parts.

According to an aspect of the present invention, provide a kind of holding device that is used for a disc, it comprises: and one half bodies connect by a fixed component to be combined; A pair of friction plate unit is crushed on the both sides of disc by a pair of fluid pressure pistons that is encapsulated in the body, so that stop the rotation of disc; One first spring, this first spring can be simultaneously with one of them friction plate unit along the direction that leave disc with along the sense of rotation pushing of disc; One second spring, this second spring can with another friction plate unit simultaneously along the direction that leave disc and with the direction elasticity pushing of the direction of rotation of disc, it is characterized in that, the configuration of described first spring and described two springs is substantially the same, and described first spring and described second spring and asymmetric.

In holding device of the present invention, best first spring and second spring are held togather in the following manner, that is: a groove is formed on each fitting surface of half body, first spring of door shape and the upside of second spring are inserted in the groove, this double body links together by fixed component and a left side and the right leg of first spring partly hook one of them friction plate unit, and the left side of second spring and right leg partly hook in another friction plate unit.

Description of drawings

Describe the present invention below with reference to accompanying drawings in detail, wherein:

Fig. 1 is the partial cut away side views that one embodiment of the invention is shown;

Fig. 2 is the I-I line sectional drawing of observing along the direction of arrow among Fig. 1;

Fig. 3 A is the schematic representation of an example of the configuration of first spring (second spring);

Fig. 3 B is the schematic representation of an example of the configuration of first spring (second spring);

Fig. 3 C is the schematic representation of an example of the configuration of first spring (second spring);

Fig. 4 is the cross sectional side view of another embodiment;

Fig. 5 is the II-II line sectional drawing of observing along the direction of arrow among Fig. 4;

Fig. 6 is a front elevation;

Fig. 7 A is the configuration of first (second spring) and the schematic representation of work;

Fig. 7 B is the configuration of first (second spring) and the schematic representation of work; And

Fig. 7 C is the configuration of first (second spring) and the schematic representation of work.

Embodiment

The preferred embodiments of the invention are described below with reference to accompanying drawings.

In the I-I line sectional drawing of observing along the direction of arrow of the sectional drawing of Fig. 1 and Fig. 2, the body that label 1 expression is connected to form by one and half body 1a, this double body by fixed component (secure component) 2 for example bolt connect and form one.Conduct of label 3 expression is held the disc of parts (being braked parts), and a recessed portion 4 that is inserted with disc 3 peripheries is formed in the body 1.

For (from the downside of Fig. 1 and 2) is inserted into disc 3 recessed portion 4, be provided with the fluid pressure pistons 5 that is used to suppress the friction plate unit U of disc 3 both sides and is used for the press unit U back side.That is to say that each half body 1a of body 1 is provided with a circular hole with bottom, to form a cylindrical chamber 6, piston 5 is inserted in the cylindrical chamber 6 movably.When fluid oil pressure or air pressure acted on the piston 5, piston 5 moved forward to recessed portion 4 sides so that friction plate unit U is pressed on the both sides of disc 3 peripheries, thereby will fix (clamping) disc 3 in case its rotation.

Friction plate unit U is made of friction material body 15 and (general rectangular) backboard 16 of a general rectangular that directly contacts with the side of disc 3, and this backboard 16 is fixed on the back side of friction material body 15 to play a reinforing function.This backboard 16 is formed size slightly greater than the size of friction material body 15.Particularly, the size of backboard 16 is quite big, and as shown in Figure 2, a little dog hole that runs through backboard 16 is respectively formed on the intermediate portion on left side and right side.

In addition, 11 is first springs, and 12 is second springs, and each spring all forms the cardinal principle door shape with crooked silk, as shown in Figure 3.Fig. 3 A is a front elevation, and Fig. 3 B is a top view, and Fig. 3 C is a side view.In body 1, on the fitting surface 8 of half body 1a of groove 9 formation bodies 1.The upside 12a of the upside 11a of first spring 11 and second spring 12 is placed in the groove 9, so that keep (fix) first spring 11 and second spring 12, realizes the connection of half body 1a and fixes by fixed component 2.

In addition, the front end of the leg part 11b of first spring 11 all hooks the little dog hole 7 on the backboard 16 of one of them friction plate unit U (left side) in the drawings.On the other hand, the front end of the leg part 12b of second spring 12 all hooks the little dog hole 7 on the backboard 16 of another friction plate unit U (right side in the drawings).

The free state of Fig. 3 and Fig. 1 (and Fig. 2) with the free state shown in the double dot dash line in, first spring 11 forms the predeformation state makes it to leave disc 3 so that can always push this along a direction elasticity to a friction plate unit among the friction plate unit U, and this first spring 11 is assembled into the form of solid line shown in Fig. 1 (and Fig. 2), this first spring 11 has two functions simultaneously, that is: the recovery function of piston and prevent the function that friction plate unit U departs from sense of rotation.

On the other hand, be among Fig. 3 and Fig. 1 and Fig. 2 in second spring of free state shown in the double dot dash line be assembled into and have resiliently deformable, shown in the solid line among Fig. 1 and Fig. 2, so that can always push this to another friction plate unit among the friction plate unit U along the direction of leaving disc 3 with along the opposite direction elasticity that disc 3 is rotated simultaneously.

Although clearly show that in the above, so that accurate, first spring 11 has identical configuration as shown in Figure 3 with second spring 12 in order to increase further description.(that is to say that first spring 11 and second spring 12 needn't be mutually symmetrical.)

Next, Fig. 4-Fig. 7 shows another embodiment.Fig. 4 is a sectional drawing, and Fig. 5 is the II-II line sectional drawing of observing along the direction of arrow among Fig. 4, and Fig. 6 is the front elevation of the surface of holding device, and Fig. 7 is the schematic representation of major component.

In Fig. 4-Fig. 7, has a body 1 with the holding device of above-mentioned embodiment like configurations, and this body 1 is linked together by fixed component (secure component) 2 by one half body 1a and constitutes, and has formed a recessed portion 4 in body 1, and the periphery of disc 3 inserts in this recessed portion 4.In addition, following each point and above-mentioned embodiment are similar.Friction plate unit U is made of friction material body 15 and backboard 16.Piston 5 is inserted on each half body 1a of body 1 movably to have in the circular hole of a bottom, and piston 5 utilizes pushing discs 3 such as liquid oils pressure or air pressure.

Backboard 16 forms at least on the substantially horizontal in Fig. 4 slightly greater than friction material body 15, and a little dog hole 7 that runs through backboard 16 is respectively formed on the intermediate portion on left side and right side.

In addition, be provided with an elastic member G, it can carry out it elasticity pushing and carry out the elasticity pushing along the direction that disc 3 is rotated and with the direction of this direction of rotation along the direction that each friction plate unit U is separated from each other simultaneously.

Particularly, elastic member G is by first spring 21 of door shape and second spring 22 of a cardinal principle door shape constitute substantially.The groove 13 of a pair of slit shape be formed on recessed portion 4 on the peripheral corresponding respective face 4a of disc 3, wherein the periphery of disc 3 is inserted in this recessed portion 4.As shown in Figure 5, groove 13 forms abreast corresponding to the position above rectangle backboard 16 left sides and the right side, the upside 22a of the upside 21a of first spring 21 and second spring 22 all is inserted in the groove part 13, left and right leg part 21b hook face mutually each other this to friction plate unit U, the left side of second spring 22 and right leg part 22b hook face mutually each other this to friction plate unit U.

In order to describe in further detail, as shown in Figure 4, first spring 21 and second spring 22 all are arranged to cross over the periphery of disc 3, and the plane of the plane of disc 3 and first spring 21 and the plane of second spring 22 meet at right angles.Each lower end (front end) of each lower end (front end) of the leg part 21b of first spring 21 and the leg part 22b of second spring 22 is bent to form little projection 21c and 22c.In addition, little projection 21c and 22c hook little dog hole 7 so that assemble each several part.

In Fig. 7, show first spring 21 and second spring 22.Fig. 7 A is a perspective view, and Fig. 7 B is a side view, and Fig. 7 C is a front elevation.Solid line illustrates a kind of free state, and double dot dash line (imaginary line) illustrates a kind of assembled state.

Shown in Fig. 7 A, 7B and 7C were clear, in first spring 21 and second spring 22 of the door shape that is made of wire, left and right leg part 21b (22b) opened in free state, and friction plate unit U is at moment M ₁And M ₂The opposite direction in effect lower edge pushed continuously by elasticity.

In addition, in Fig. 7 A and Fig. 7 B, leg part 21b (22b) is reversed so that open downwards at upside 21a (22a), and friction plate unit U respectively on the sense of rotation of disc 3 and opposite direction by elasticity pushing continuously.

Although the spring of being made by

wire

11,12,21 and 22 has been shown among Fig. 1 to Fig. 7, also can have adopted the leaf spring of making by sheet material.In addition, four

leg part

11b and 12b or four

leg part

21b and 22b can make the structure with unification (one).

According to holding device of the present invention, first spring 11 and second spring 12 are assembled very simply, and make it to be fixed owing to and body 1 is made of one half body 1a.Therefore and the quantity of parts has reduced, and constructs also simply, because elastic member only is made of first spring 11 and second spring 12, this device can be made very compactly.

In addition, first spring 11 is assembled into easily more firmly with second spring 12 and is connected with half body 1a.And structure can be made very simply.

In addition, the quantity of elastic member G has reduced, and structure can be simpler.

Although in this specification, described several preferred embodiment of the present invention, be understandable that the present invention is exemplary and not restrictive, because in spirit of the present invention and independent feature scope, can carry out various variations.

Claims

1. holding device that is used for a disc (3), it comprises: and one half bodies (1a) connect by a fixed component (2) to be combined; A pair of friction plate unit (U) is crushed on the both sides of disc (3) by a pair of fluid pressure pistons (5) that is encapsulated in the body (1), so that stop the rotation of disc (3); One first spring (11), this first spring can be simultaneously with one of them friction plate unit (U) along the direction that leave disc (3) with along the sense of rotation pushing of disc (3); One second spring (12), this second spring can with another friction plate unit (U) simultaneously along the direction that leave disc (3) and with the direction elasticity pushing of the direction of rotation of disc (3),

It is characterized in that the configuration of described first spring and described two springs is substantially the same, and described first spring and described second spring and asymmetric.

2. the holding device of claim 1, it is characterized in that, first spring (11) and second spring (12) are held togather in the following manner, that is: a groove (9) is formed on each fitting surface (8) of half body (1a), first spring (11) of door shape and the upside of second spring (12) are inserted in the groove (9), this double body (1a) links together by fixed component (2) and a left side and the right leg part (11b) of first spring (11) are hooked one of them friction plate unit (U), and the left side of second spring (12) and right leg part (12b) are hooked in another plate unit (U) that rubs.