JP2559936B2 - Brake device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake device for stopping the operation of an operating member.

[0002]

2. Description of the Related Art In a conventional brake device, a pad is brought into contact with and pressed against a rotating body like a drum type brake or a disc brake used in an automobile.
The frictional resistance stops the rotation of the rotating body.
The driving force for actuating the pad is mechanically generated by operating the brake pedal by using a hydraulic device or the like.

[0003]

However, in the above-mentioned conventional brake device, it is necessary to forcibly press the pad against the rotating body via a hydraulic device or the like .
For this reason , a large acting force is required to operate the pad to give a sufficient frictional force to the rotating body .

Therefore, an object of the present invention is to provide a brake device that suitably has various brake functions and can reduce the acting force for the brake operation as much as possible.

[0005]

In order to achieve the above object, the braking device of the present invention has the following configuration. That is, the present invention relates to the internal space provided by the inner wall surface of the circumference.
And an eccentric member that is eccentric to the axis of the outer member.
Is arranged in the inner space of the outer peripheral member and rotates around the axis.
The cylindrical rotating body that can be rolled and the outer peripheral member
A compound provided with an opening toward the outer peripheral wall surface of the rotating body.
Number of cylinders and slidably inserted into the cylinders.
And the tip protruding from the cylinder is the outer peripheral wall of the rotating body.
The piston that can come into contact with the surface and the
A fluid that allows fluid to flow between the cylinders.
A passage and between the plurality of cylinders provided in the communication passage
Stopping means for stopping the flow of the fluid .

Further, the present invention is provided with a circumferential inner wall surface.
Member having an internal space that is provided and an axis of the outer member
Is arranged eccentrically with respect to the inner space of the outer peripheral member,
Provided to be rotatable relative to the outer peripheral member about the axis.
Columnar first inner member and the outer peripheral member or front
Note that one of the first inner members opens toward the other wall surface.
A plurality of first cylinders provided in the
Is slidably inserted into the connector and protrudes from the first cylinder.
The first tip provided so that the protruding tip can contact the wall surface
Stone and the first inner portion with respect to the axis of the outer peripheral member
Eccentric to the side opposite to the material
And integrally with the first inner member around the axis.
A cylindrical second member provided so as to be rotatable relative to the peripheral member.
Of the inner member and the outer peripheral member or the second inner member
A plurality of openings provided on one side facing the other wall
Second cylinder and slidable inside the second cylinder
The tip inserted and protruding from the second cylinder is the wall.
A second piston provided so as to come into contact with the surface;
The cylinders are connected to each other so that fluid can flow between the cylinders.
A communication passage through which the plurality of seals are provided.
There is also a braking device characterized by comprising stop means for stopping the flow of fluid between the binders .

Further, the present invention is rotatable about an axis.
The peripheral part of the disk provided in the
And the peripheral surface of the rotating body and / or
Is a plurality of cylinders that open toward the back
And slidably inserted in the cylinder,
The tip protruding from the surface of the peripheral part of the rotating body and / or
Alternatively, the piston provided so that it can contact the back surface
Fluids can flow between several cylinders
Is provided in the communication passage, and
Stop means to stop the flow of fluid between several cylinders
There is also a brake device characterized by being provided.

[0008]

According to the invention of claim 1, a plurality of syrins
By stopping the flow of fluid between the
The movement of the piston that goes in and out of the multiple cylinders provided
It can be stopped. At this time, the tip of the piston
Since it can contact the outer peripheral wall surface of the eccentric and rotating body,
The rotation of the rotating body can be stopped more preferably. sand
That is, the tip of the piston contacts the outer wall surface.
Compared to the case of abutting on the inner peripheral surface,
This means that they can make contact with each other, and the
It is possible to obtain a larger drop in the contact position, and the braking force
Can be improved. The operation performed at this time is the fluid
Since it only stops the flow of
Therefore, it can be easily performed. Also, in claim 2
According to the invention, the first inner member is provided in the inner space of the outer peripheral member.
And the second inner member are oppositely eccentric and integrally provided
I have. Corresponding to the first inner member and the second inner member,
Multiple cylinders with pistons coming in and out are arranged in two stages
Therefore, the acting force of the piston acts in a well-balanced
Brake action is smooth because no unreasonable load is applied to the axis of rotation.
Done According to the invention of claim 3, the circle
It is possible to properly brake the disk-shaped rotating body, and
The action force for the brake operation can be reduced. And
Structurally, it does not require a drum-shaped member, and has the advantage of shape.
Have.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a sectional view illustrating an embodiment of a brake device according to the present invention. Reference numeral 10 denotes a cylindrical rotating body, and a rotating shaft 12 of the rotating body 10 is eccentric and is rotatably provided by a bearing (not shown). A ring 16 is fitted on the outer circumference of the rotating body 10, and a plurality of spherical bodies 14 are arranged between the ring 16 and the outer peripheral surface of the rotating body 10 so as to contact each other. The plurality of spheres 14 are formed of steel balls or the like and act as ball bearings. The rotating body 1
0 has a plurality of through holes 18 for weight balance.
There are bored, whereby it is possible to make smooth rotation.

Reference numeral 20 is a cylinder, and the circumference is divided into six equal parts in a cylindrical block which is an outer peripheral member provided coaxially with the rotating shaft 12 of the rotating body 10 so as to surround the outer periphery of the rotating body 10. It is provided at a position. The axis of each cylinder 20 extends in a direction orthogonal to the axis of the rotary shaft 12. A piston 22 is reciprocally inserted into the plurality of cylinders 20. The tip of the piston 22 is capable of protruding and reciprocating from the opening of the cylinder 20 so as to come into contact with the ring 16 provided on the outer periphery of the rotating body 20.

As shown in FIG. 1, two adjacent cylinders 20 are communicated with each other by a pipe line 24 at an outer end thereof. All this pipeline 24 and all cylinder 2
0 is filled with oil. Of course, the object filled here may be another fluid. In addition, as shown in FIG. 1, the two conduits 2 at symmetrical positions are provided.
4 is a stop means for stopping the flow of oil between the cylinders 20.
Valve 26 is provided at. Therefore, by closing the two valves 26, the six communicating cylinders 20 can be divided into two sets of three communicating cylinders, and oil is prevented from flowing between the two sets. can do.

Next, the operation of the embodiment shown in FIG. 1 will be described. When the two valves 26 are opened to the maximum so that the oil can communicate with each other, when the rotating body 10 is rotated by the driving device (not shown), it abuts on the outer peripheral surface of the ring 16. The piston 22 reciprocates freely as the ring 16 rotates. This is six cylinders 20
Are provided in a symmetrical positional relationship, the cylinder 20
If one of the pistons 22 inserted in
This is possible because the other piston 22 at the symmetrical position moves so as to retract, and always maintains a constant balance as a whole.

Next, when the two valves 26 are gradually throttled, it becomes difficult for the oil filled in the cylinder 20 and the pipe line 24 to flow, so that the reciprocating speed of each piston 22 becomes slow. Thus, the rotation speed of the rotating body 10 can be reduced. This is because the end of the piston 22 abuts against the outer peripheral surface of the ring 16 and acts to press it down, and the rotating body 20 is decelerated by the frictional force between the piston 22 and the ring. And the two valves 26
Cylinder 20 and pipe 24
The oil filled in and becomes completely out of circulation. As a result, the reciprocating motion of the piston 22 is blocked, and the rotating body 10 is pressed through the ring 16 and the spherical body 14. The pressing force can completely stop the rotation of the rotating body 10. Furthermore, the operation of the rotating body 10
Operate valve 26 to sense and stop in place
If so, the rotating body 10 can be easily stopped at a predetermined stop position.
be able to.

It should be noted that the spherical body 14 disposed between the rotating body 10 and the ring 16 uniformly applies a pressing force acting to stop the rotation of the rotating body 10 to the entire outer peripheral surface of the rotating body 10. be able to. Also, the piston 22
The concentrating force acting when the ring 16 presses the ring 16 can be appropriately dispersed by causing the ring 16 to slide by the spherical body 14. Further, the spherical body 14 acts as a ball bearing when the rotating body 10 rotates, and the resistance force by the piston 22 can be released, whereby the rotating body 10 can be smoothly rotated. According to the above-described embodiment, the rotation of the rotating body 10 can be easily controlled only by the acting force for opening and closing the valve 26. Needless to say, a similar effect can be obtained by providing a valve 26 for each pipeline 24 and adjusting the valve 26.

Next, a plate-shaped brake device for a rotating body will be described with reference to FIGS. 2 is a side view of this embodiment, and FIG. 3 is a plan view of this embodiment.
30 is a rotating body, the rotation shaft 32 is formed in a circular plate shape around the peripheral edge portion is formed in a wave shape. The waveform of this peripheral portion is symmetrically provided by dividing the circumference into six equal parts. In this way, the peripheral part of the disk runs along the circumferential direction.
Are formed unevenly. The board surface near the front and back sides of the rotating body 30, a plurality of cylinders 40 are disposed. A plurality of pistons 42 are provided in the plurality of cylinders 40.
There is inserted, which can contact the and out and mounted for reciprocation to the panel surface of the rotating body 30. In addition, in this embodiment, FIG.
As shown in, the piston 42 is arranged at a predetermined position of the disk- shaped rotating body 30 so that the piston 42 can abut from the front and back. Further, between the plurality of cylinders 40, adjacent pipes communicate with each other at the rear end by a pipe line 44. However, in this embodiment, the pipe line 44 is provided so as to communicate with each of the four cylinders 40 located on each of the front and back sides of the disk- shaped rotating body 30.

The cylinder 40 and the conduit 44 are filled with oil. According to the above configuration, the plate-shaped rotary member 30 is rotated, since the oil filled in the cylinder 40 and the conduit 44 can flow, the piston 42 end face panel surface of the rotating body 30 is in contact It reciprocates following the wavy plate surface. Then, in each pipe line 44, the adjacent cylinder 40
A valve 46 is provided to stop the flow of oil between them.

Next, the operation of the embodiment shown in FIGS. 2 and 3 will be described. When all the valves 46 are opened to the maximum and the oil can flow freely, the rotating body 30
There upon being rotated by a drive device (not shown), the piston 42 in contact with the panel surface of the wavy rotary body 30, to reciprocate freely in contact with the waveform of the board body. This is because four cylinders 40 arranged on the front and back are provided in a symmetrical positional relationship, and the piston 4 inserted in the cylinder 40
When one of the two protrudes, the other piston 42 at the corresponding position moves so as to retract, and it is possible to keep a constant balance as a whole.

Next, when the valve 46 is gradually throttled, as described in the embodiment of FIG.
0 and the oil filled in the pipe line 44 are less likely to flow, so that the reciprocating speed of each piston 42 becomes slower, which reduces the rotational speed of the rotating body 30. Then, when the valve 46 is closed to the closed state, the oil filled in the cylinder 40 and the pipe line 44 does not completely flow. As a result, the reciprocating motion of the piston 42 is prevented, and the rotary body 30 is pressed, and the pressing force can completely stop the rotation of the rotary body 10. Since the piston 46 is in contact with a predetermined position of the disk- shaped rotating body 30 from both front and back sides, the rotating body 30 can be pressed in a well-balanced manner.

According to the brake device of the above embodiment, the rotation of the disk-shaped rotating body 30 can be easily controlled only by the acting force for opening and closing the valve 26. Further, the same effect can be obtained even if a pipe is provided between a pair of pistons 40 whose end faces come into contact with each other at the same position of the rotating body 30 and a valve is provided for each pipe and the valve can be operated. You can

Next, another embodiment will be described with reference to FIG. As shown in FIG. 4, two cylindrical rotary member 50 is provided in two stages it is eccentrically opposed against the rotary shaft 12, a plurality of cylinders 20 and a plurality of pistons 22,
The rotating bodies 50 are provided in two stages corresponding to the rotating bodies 50 provided in the two stages. That is, the two rotating bodies 50 are
Eccentric with respect to the axis of the peripheral member
It is arranged around the axis and rotates relative to the outer peripheral member.
A cylindrical first inner member rotatably provided and an outer peripheral portion
Eccentric to the side opposite to the first inner member with respect to the axis of the material
Is placed in the inner space of the outer peripheral member and centered on its axis
To rotate relative to the outer peripheral member integrally with the first inner member
Acts as a possible second cylindrical inner member
It In addition, the plurality of cylinders 20 may include the outer peripheral member or
One of the first inner members opens toward the other wall surface
And a plurality of first cylinders provided as a unit, and the outer peripheral member
Alternatively, one of the second inner members faces the other wall surface.
Acting as a plurality of second cylinders that are open
I do. In addition, the plurality of pistons 22 are connected to the first cylinder.
Slidably inserted into the cylinder, projecting from the first cylinder
First pis provided such that the aforesaid tip is in contact with the wall surface
Ton and slidably inserted into the second cylinder,
The tip protruding from the second cylinder can contact the wall surface.
Acting as a second piston provided in the nose. Each piston 22 operates similarly to the operation of the embodiment shown in FIG. 1 and can abut the ring 16 to control and stop the rotation of the rotating body 50. At this time, the two rotating bodies 5
Since 0 is eccentric with respect to the rotary shaft 12 opposite to each other, the acting force of the piston 22 acts in a well-balanced manner, and an unreasonable load is not applied to the rotary shaft. Therefore, the rotation of the rotating body 50 can be smoothly controlled.

According to the above embodiment, the reciprocating motion of the piston is controlled by controlling the flow of the fluid such as oil in the cylinder, and the action force such as the frictional force when the piston abuts the rotating member. The movement of the rotating member can be controlled .

Next, referring to FIG. 5, a reference of the brake device is given.
An example will be described. As shown in FIG. 5, the housing 60 is formed in the same manner as a rotary engine.
And a rotor 62, and passages 63 and 64 corresponding to the intake hole and the exhaust hole of the rotary engine provided in the housing 62 are connected by a pipe line 65. The pipe 65 is provided with a valve 66 that can stop the flow of oil filled in the space 65 between the pipe 65 and the housing 60 and the rotor 62. Reference numeral 68 denotes a shaft, and the rotation of the shaft 68 is transmitted to the rotation of the rotor 62 via a gear, and a side housing (not shown) hermetically seals the side surface of the rotor 62 is different from that of the rotary engine. It is the same.

According to this brake device, the rotation of the rotor 62 is stopped by stopping or adjusting the flow of oil filled in the space 70 between the housing and the rotor and the pipe by closing or throttling the valve 66. Or it can be adjusted. Therefore, the rotation of the shaft 68, which is the operating member, can be stopped or adjusted. Further, the hydraulic pressure generated when the valve 66 is throttled in the rotor 62 is evenly distributed to each surface of the rotor 62, and
Since it is directly applied, the rotation of the rotor 68 and the shaft 68 meshing with the rotor 62 can be smoothly adjusted.

As another reference example of the braking device,
In a pump device such as a vane pump having an impeller, a fluid inlet and a fluid outlet may be connected by a passage, a valve for controlling the flow of the fluid may be provided in the passage, and the valve may be opened or closed. . With this, it is possible to control the rotation of the impeller, which is the operating member. By the way, the same effect can be obtained even if the arrangement relationship between the rotating body of the brake device shown in FIG. 1 and the braking portion including a plurality of cylinders and pistons is reversed. That is, the rotating body is formed in a tubular shape may be a brake device by inserting a cylindrical brake portion having a plurality of cylinders and pistons in the inner space of the tubular rotor. In the brake system of this, the axial center of the rotary shaft and the cylindrical inner space of the rotating body is in a coaxially, brake
The center of is set so as not to be coaxial with the rotation axis of the rotating body . Therefore, when the rotating body rotates, the cylindrical inner space becomes
During that period, the brake unit rotates eccentrically. By utilizing this shift due to eccentricity, a braking action can be obtained as in the embodiment of FIG. That is, the cylindrical internal space is
Since it rotates eccentrically with respect to the center of the braking part, the interval between the outer periphery of the cylindrical braking part and the inner wall of the rotating body forming the internal space continuously changes at each part. When the rotating body rotates, the piston fitted into the cylinder so as to be able to move in and out from the outer circumference of the cylindrical braking portion moves in and out along the interval. When the flow of fluid between the cylinders is stopped by closing the pipe that communicates between the cylinders with a valve as in the embodiment of FIG. 1, the piston is stopped from moving in and out, and the rotation of the rotating body is suitably stopped. You can do it. The brake device described above does not need to be always connected to the drive unit that works, and a mechanism that can be connected to the drive unit by a connecting device such as a gear device or a clutch device only when a braking action is required. Of course, it may be. Further, in the above embodiments, the brake device in which the cylinder and the pipeline are constantly filled with a certain amount of fluid such as oil has been described. However, the present invention is not limited to this, and the fluid may be drawn out of the device when the brake device is not operated. That is, a fluid such as oil may be configured to be able to come in and out as needed, and thereby, the resistance applied when the actuating member is actuated by the brake device of the present invention can be suitably reduced. Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. That is.

[0025]

According to the invention of claim 1, a plurality of
By stopping the flow of fluid between the cylinders ,
Of pistons that move in and out of multiple cylinders provided on the member
The operation can be stopped. At this time, the tip of the piston
The end can contact the outer peripheral wall surface of the rotating body that rotates eccentrically.
Therefore, the rotation of the rotating body can be stopped more preferably,
The braking operation performed at this time stops the flow of fluid.
It is easy to perform with a very small acting force.
It has a remarkable effect of being able to. Also, in claim 2.
According to this invention, the first inner side is provided in the inner space of the outer peripheral member.
The member and the second inner member are oppositely eccentric and integrally provided.
Has been. Corresponds to this first inner member and second inner member
However, the multiple cylinders that move the pistons in and out are arranged in two stages.
Since the pistons have a good balance,
However, it has a remarkable effect that the braking action is smooth.
I do. According to the invention of claim 3, the disk-shaped
The rotating body can be braked appropriately and its
It is possible to reduce the operating force for the key operation. And structural
Has a shape advantage because it does not require a drum-shaped member
It

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a brake device according to the present invention.

FIG. 2 is a side view showing another embodiment of the brake device according to the present invention.

FIG. 3 is a plan view of the embodiment of FIG.

FIG. 4 is a sectional view showing another embodiment of the brake device according to the present invention.

FIG. 5 is a cross-sectional view showing a reference example of a brake device .

[Explanation of symbols]

 10 Rotating Body 12 Rotating Shaft 16 Ring 20 Cylinder 22 Piston 24 Pipeline 26 Valve 60 Housing 62 Rotor 63 Passage 64 Passage 65 Pipeline 70 Space between Housing and Rotor

Claims (3)

(57) [Claims] 1. An internal space provided by a circumferential inner wall surface
And an inner space of the outer peripheral member that is eccentric to the axis of the outer peripheral member.
A circle arranged inside and rotatably provided around the axis.
The column-shaped rotating body and the outer peripheral member are opened toward the outer peripheral wall surface of the rotating body.
A plurality of cylinders provided in the cylinder and slidably inserted in the cylinder.
Provided so that the protruding tip can contact the outer peripheral wall surface of the rotating body
A piston that is, the inter plurality of cylinders capable circulation fluid, a cylinder the
Of a fluid between the plurality of cylinders, which is provided in the communication passage and the communication passage for communicating the engineer.
A braking device comprising: a stopping means for stopping the flow . 2. An internal space provided by a circumferential inner wall surface.
And an inner space of the outer peripheral member that is eccentric to the axis of the outer peripheral member.
Is disposed inside and relatively to the outer peripheral member around the axis.
A cylindrical first inner member rotatably provided, and one of the outer peripheral member or the first inner member
A plurality of first sillins provided with openings toward the wall surface
And the first cylinder is slidably inserted into the first cylinder.
Provided so that the tip protruding from the cylinder can contact the wall surface
And the first inner member is opposite to the axial line of the outer peripheral member.
Eccentric to the side and disposed in the inner space of the outer peripheral member,
Centered around the first inner member and integrally with the outer peripheral member.
Cylindrical second inner member rotatably provided opposite to each other
And one of the outer peripheral member or the second inner member
A plurality of second silin provided with openings toward the wall surface
And the second cylinder is slidably inserted into the second cylinder.
Provided so that the tip protruding from the cylinder can contact the wall surface
Fluid is allowed to flow between the second piston and the plurality of cylinders.
A communication passage communicating with each other and a fluid provided between the plurality of cylinders,
A braking device comprising: a stopping means for stopping the flow . 3. A disk provided so as to be rotatable about an axis.
Of which the peripheral portion of the rotating body is formed in a concavo-convex shape along the circumferential direction, and the front and / or back surface of the peripheral portion of the rotating body.
A plurality of cylinders provided with openings and slidably inserted into the cylinder,
The protruding tip has a peripheral surface of the rotating body and / or
Is a piston that can be brought into contact with the back surface of the cylinder, and a fluid that can flow between the cylinders.
And a communication passage that connects the two cylinders to each other,
A braking device comprising: a stopping means for stopping the flow .