JPH0579597A - Universal supporting device - Google Patents

Abstract

PURPOSE:To simplify the connection structure between a cylinder unit and a turning part by freely inserting a tightening shaft into the first and second through holes, suppressing the intrusion of one edge part of the tightening shaft into the first or second through hole and regulating the separation distance between the opposed surfaces of the cylinder unit and the turning part. CONSTITUTION:The first through hole 12a is drilled on a cylinder unit 10, and the second through hole 12c is drilled on a turning part 30, and at one edge part of a tightening shaft which is freely inserted into the first and second through holes 12a and 12c, a stopper part 40 which regulates the advance into the first and second through holes 12a and 12c and regulates the distance between the opposed surfaces 34a and 34b of the cylinder unit 10 and the turning part 30 is installed. Further, the pressing members 14a and 14b which press the opposed surfaces 34a and 34b of the cylinder unit 10 and the turning member 30 by pushing the inner wall surfaces of the first and second through holes 12a and 12c are provided. Accordingly, the connection structure between the cylinder unit 10 and the turning part 30 is made simple.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a universal support device,
More specifically, a cylinder unit provided with a first arm, a rotation unit provided rotatably with respect to the cylinder unit and provided with a second arm, a cylinder unit and a rotation unit. And a handle for pressing the contact surfaces of the rotating parts to each other or releasing the pressing contact to fix the rotation position of the rotation portion with respect to the cylinder unit, or a handle for releasing the fixation.

[0002]

2. Description of the Related Art Conventionally, a cylinder unit provided with a first arm, a rotation unit provided rotatably with respect to the cylinder unit and provided with a second arm, the cylinder unit and the rotary unit. Pressing the opposing surfaces of the moving part against each other,
Alternatively, as a universal support device including a handle for releasing the pressure contact to fix the rotational position of the rotating unit with respect to the cylinder unit, or a handle for releasing the fixed position, Japanese Patent Application Laid-Open No. HEI 3-301 is available.
There is a technique disclosed in Japanese Patent No. 134398 (see FIG. 2). The universal support device 100 includes a cylinder unit 104 provided with a first arm 102 and a rotating unit 10 provided with a second arm 106 with respect to the cylinder unit 104.
8 is rotatably provided. Cylinder unit 10
4, a member 116 provided on the No. 4 and a coupler 114 provided on the rotating unit 108 face each other.
The rotating portion 108 is brought into pressure contact with each other or released from the pressure contact.
The rotational position with respect to the cylinder unit 104 is fixed or released. In order to have the above structure, the cylinder unit 104 and the rotating portion 108
The coupler 114 is provided to connect the two. When assembling the cylinder unit 104, the coupler 114 is attached by the member 116 so as to be rotatable toward the cylinder unit 104 side and slightly movable in the axial direction. By being screwed into the coupler 114, the rotating portion 108 can be rotated integrally with the coupler 114 with respect to the cylinder unit 104 and can be slightly moved in the axial direction.

[0003]

However, the above-described conventional universal support device has the following problems. Although the above universal support device is excellent in terms of function, it has a problem that the structures of the cylinder unit 104 and the rotating portion 108 are complicated. That is, the coupler 114 and the member 116 are required in order to make the rotating portion 108 rotatable with respect to the cylinder unit 104 and slightly movable in the axial direction. Therefore, the number of parts increases and the member 116
Screwing the cylinder unit 104 to the rotary unit 10
There is a problem that the laborious work of screwing the No. 8 onto the coupler 114 becomes indispensable and the workability is hindered. Therefore, it is an object of the present invention to provide a universal support device having a simple connecting structure between a cylinder unit and a rotating portion.

[0004]

In order to solve the above problems, the present invention has the following constitution. That is, a cylinder unit provided with a first arm, a rotation unit provided rotatably with respect to the cylinder unit and provided with a second arm, the cylinder unit and the rotation unit. A universal support device comprising: a handle for pressing or releasing pressure-contacting surfaces of the rotating unit with respect to the cylinder unit, or a handle for releasing the fixed position of the rotating unit with respect to the cylinder unit. A first through hole is formed in the rotating portion, and a second through hole communicating with the first through hole is formed in the rotating portion. The first through hole and the second through hole are formed. Is inserted into the first through hole or the second through hole at one end thereof, and at the same time, the separation distance between the facing surfaces of the cylinder unit and the rotating portion is restricted. A stopper is provided and the other end is With protruding from the through hole or the first through-hole, and a shaft tightening the mounting portion to which the handle is mounted is provided,
In the first through hole and the second through hole, the handle is arranged so as to be movable in the length direction of the tightening shaft, and the handle fixes the rotating position of the rotating portion with respect to the cylinder unit. When operated, the first through hole and the second through hole
And a pressing member that presses the inner wall surface of the through hole to press the mutually facing surfaces of the cylinder unit and the rotating portion in a direction of press-contacting each other.

[0005]

[Operation] The operation will be described. By inserting the tightening shaft into the first through hole and the second through hole, the rotating portion can rotate with respect to the cylinder unit. A stopper portion provided at one end portion of the tightening shaft prevents the one end portion from entering the first through hole or the second through hole, and a facing surface between the cylinder unit and the rotating portion. Restrict the separation distance between each other. Therefore, the rotation shaft can be attached to the cylinder unit by the tightening shaft.

[0006]

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 shows a cross-sectional view of the universal support device of this embodiment. Reference numeral 10 is a cylinder unit, and a first through hole 12a whose both ends are opened is formed in the center in the left-right direction. Reference numeral 14a is a first pressing member forming a pressing member. The first pressing member 14a has a through hole 12b at the center.
Is a substantially spherical member in which the first through hole 12a is formed.
The first through hole 12a is arranged inside and is movable in the length direction (left-right direction). A portion of the inner wall surface of the first through hole 12a, with which the first pressing member 14a can abut, is formed in a concave curved surface corresponding to the outer surface of the first pressing member 14a.

Reference numeral 16a denotes a first arm, the upper end of which is screwed to the cylinder unit 10. On the other hand, the first arm 16
A first ball joint 18a is provided at the lower end of a, and the base 2
It is fitted with the ball portion 22a fixed to 0.
The position of the first ball joint 18a and thus the first arm 16a with respect to the ball portion 22a can be arbitrarily fixed by a mechanism described later. The first arm 16a is formed to be hollow, and the first rod 26a is movable in the axial direction in the hollow portion 24a. The upper end of the first rod 26a enters the first through hole 12a of the cylinder unit 10 and can come into contact with the first pressing member 14a. On the other hand, a first pressing body 28a is attached to the lower end of the first rod 26a so that it can move integrally with the first rod 26a. When the first pressing body 28a moves downward and is pressed against the first ball portion 22a, the first ball joint 18a and then the first ball joint 18a.
The position of the arm 16a with respect to the ball portion 22a can be fixed. The first rod 26a and the second pressing body 28a form a first fixing member.

Reference numeral 30 is a rotating portion, and a second through hole 12c having both ends open is bored in the left-right direction at the center.
The rotating portion 30 has the second through hole 12c arranged coaxially with the first through hole 12a of the cylinder unit 10, and is rotatable with respect to the cylinder unit 10 about a coaxial line. An elastic member 32 is inserted between the rotating portion 30 and the cylinder unit 10. The elastic member 32 also serves as a retainer so that the cylinder unit 10 and the rotating portion 30 do not separate after assembly. Further, the end surface 34b of the rotating portion 30 can be moved toward and away from the facing surface 34a of the cylinder unit 10 by a slight distance. When the surface 34a and the surface 34b are brought into pressure contact with each other by a mechanism described later, the rotational position of the rotating portion 30 with respect to the cylinder unit 10 is fixed by the frictional force between them. The elastic member 32 may be omitted. Reference numeral 14b is a second pressing member that constitutes a pressing member together with the first pressing member. The second pressing member 14b is a substantially spherical member having a through hole 12d formed in the center thereof.
The second through hole 1 while being disposed in the through hole 12c of
It is movable in the length direction of 2c (left-right direction).
The portion of the inner wall surface of the second through hole 12c, which the second pressing member 14b can contact, is the second pressing member 14b.
Is formed into a concave curved surface corresponding to the outer surface of the.

Reference numeral 16b is a second arm, the lower end of which is screwed to the rotating portion 30. On the other hand, a second ball joint 18b is provided on the upper end portion of the second arm 16b, and is fitted with a gauge mounting portion (not shown) or a ball portion 22b fixed to the third arm. The second ball joint 18b and then the second arm 16
The position of b can be arbitrarily fixed with respect to the ball portion 22b by a mechanism described later. The second arm 16b is formed hollow, and the second rod 26b is movable in the axial direction in the hollow portion 24b. The lower end of the second rod 26b enters into the second through hole 12c of the rotating portion 30 to move into the second through hole 12c.
Of the pressing member 14b. Meanwhile, the second
A second pressing body 28b is attached to the upper end of the rod 26b, and is movable integrally with the second rod 26b. When the second pressing body 28b moves upward and is pressed against the second ball portion 22b, the position of the second ball joint 18b and thus the second arm 16b with respect to the ball portion 22b can be fixed. The second rod 26b and the second pressing body 28b
And constitute a second fixing member.

Reference numeral 36 denotes a tightening shaft, which is a cylinder unit 1
0 through-hole 12a, through-hole 12b of first pressing member 14a, second through-hole 12c of rotating portion 30 and through-hole 12d of second pressing member 14b are loosely inserted in the axial direction. It can be moved (left and right). A step 38a is formed at the left end of the tightening shaft 36, and the second pressing member 14b is formed.
When the tightening shaft 36 moves to the right, the second pressing member 14b is pushed to the right. A stopper portion 40 is formed at the left end of the tightening shaft 36. The stopper portion 40 restricts the left end of the tightening shaft 36 from entering into the second through hole 12c, and restricts the movement of the rotating portion 30 to the left, so that the cylinder unit 10 is prevented.
The distance between the opposing surfaces 34a and 34b of the rotating portion 30 is regulated. Step 3 between stopper portion 40 and rotating portion 30
An O-ring 42, which is an example of a biasing means, is inserted between the 8 b and 8 b. The O-ring 42 is formed of an elastic material, and biases the rotating portion 30 to the right to urge the cylinder unit 10 and the rotating portion 30 so that the surfaces 34a and 34b facing each other approach and press each other. To do. Thereby, when the fixing of the rotating portion 30 is released, the surfaces 34a and 34b facing each other are provided.
It is possible to prevent abrupt loosening between the two, and to prevent abrupt rotation of the rotating portion 30 and thus abrupt sliding of the second arm 16b. The right end of the tightening shaft 36 projects from the first through hole 12 a of the cylinder unit 10. A male screw portion 48, which is an example of a mounting portion, is formed on the right end portion of the tightening shaft 36.

Reference numeral 44 denotes a handle, which is made of synthetic resin and has a female screw portion 46 which is insert-molded so that the female screw portion 46 is screwed into a male screw portion 48 of the tightening shaft 36. A pressing plate 5 is provided between the inner end surface of the handle 44 and the first pressing member.
When 0 is inserted and the handle 44 is operated, the pressing plate 50 can push the first pressing member 14a to the left. 52 is a coil spring which is an example of a delay member. The coil spring 52 is elastically mounted between the surface 34a of the cylinder unit 10 and the inner end surface of the second pressing member 14b in the second through hole 12c, and biases the second pressing member 14b to the left. There is. Coil spring 52
When the handle 44 pushes the pressing plate 50 inward,
Pushing upward of the second rod 26b of the second pressing member 14b is delayed from pushing downward of the first rod 26a of the first pressing member 14a, and conversely, the handle 44 causes the pressing plate 50 to move. The second pressing member 1 when the inward pushing motion of the
4b is provided to release the upward pushing movement of the second rod 26b of the second rod 26b before releasing the downward pushing movement of the first rod 26a of the first pushing member 14a.

In the universal support device having the above-described structure, when the handle 44 is rotated in the fixing direction of the universal support device, the pressing plate 50 pushes the first pressing member 14a to the left, and at the same time, the tightening shaft. The stopper portion 40 of 36 pushes the second pressing member 14b to the right while compressing the O-ring 42. The first pressing member 14a pushes the inner wall of the first through hole 12a to bias the cylinder unit 10 to the left. At the same time, the first pressing member 14a is connected to the first rod 26a.
To move the first pressing body 28a to the ball portion 22a.
The first ball joint 18a is fixed by pressing. Meanwhile, the second
The pressing member 14b pushes the inner wall of the second through hole 12c to urge the rotating portion 30 to the right. As a result, the surfaces 34a and 34b that face each other are pressed against each other, and the rotational position of the rotating portion 30 with respect to the cylinder unit 10 is fixed by the frictional force between them. At the same time, the second pressing member 14b resists the biasing force of the coil spring 52 and slightly delays the movement of the first pressing member 14a on the first rod 26a.
6b is pushed upward to move the second pressing body 28b to the ball portion 2
The second ball joint 18b is fixed by pressing it against 2b. By providing this time difference, when the first ball joint 18a on the base 20 side is fixed first and the second ball joint 18b is made movable, a fine gauge such as a gauge attached to the tip of the second ball joint 18b is set. Adjustment becomes possible, and after the fine adjustment is completed, the handle 44 is further operated in the fixing direction so that the handle 44 can be completely fixed.

When the handle 44 is rotated in the direction of releasing the fixing of the universal support device, the pressing plate 50 releases the pressing movement of the first pressing member 14a to the left. Then, tightening shaft 3
The stopper portion 40 of 6 also releases the pushing motion of the second pushing member 14b to the right due to the elasticity of the O-ring 42 and the elasticity of the coil spring 52. As a result, the fixing of the rotating portion 30 and the cylinder unit 10 is released. At the same time, the second pressing member 14b is pushed back to the left by the urging force of the coil spring 52, and the upward pushing movement of the second rod 26a is released, so that the second ball joint 18b is released from being fixed. Since the first pressing member 14a is not biased by the coil spring 52 like the second pressing member 14b,
The urging of the first rod 26a downward is released after a slight delay from the pressing member 14b. By providing this time difference, when the handle 44 is operated in the unlocking direction, the first
It is possible to prevent the ball joint 18a and the second ball joint 18b from loosening at the same time and damaging the gauge or the like attached to the tip of the second ball joint 18b. Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and for example, a delay member may not necessarily be included, etc. within the scope of the invention. Of course, many more modifications can be made.

[0014]

When the universal support device according to the present invention is used,
By inserting the tightening shaft into the first through hole and the second through hole, the rotating portion can rotate with respect to the cylinder unit.
A stopper portion provided at one end portion of the tightening shaft prevents the one end portion from entering the first through hole or the second through hole, and a facing surface between the cylinder unit and the rotating portion. Restrict the separation distance between each other. Therefore, the number of parts of the entire apparatus is reduced, and a laborious work such as screwing at the time of attaching the rotating portion is not required, so that the assembling workability can be improved.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view of a universal support device according to the present invention.

FIG. 2 is a front sectional view of a conventional universal support device.

[Explanation of symbols]

 10 Cylinder Unit 12a First Through Hole 12c Second Through Hole 14a First Pressing Member 14b Second Pressing Member 16a First Arm 16b Second Arm 18a First Ball Joint 18b Second Ball Joint 26a First rod 26b Second rod 28a First pressing body 28b Second pressing body 30 Rotating part 34a Surface 34b Surface 36 Tightening shaft 40 Stopper part 42 O-ring 44 Handle 48 Male screw part 52 Coil spring

Claims (5)

[Claims] 1. A cylinder unit provided with a first arm, a rotation unit provided rotatably with respect to the cylinder unit, and provided with a second arm, the cylinder unit and the rotary unit. Pressing the opposing surfaces of the moving part against each other,
Alternatively, in a universal support device including a handle for fixing the rotation position of the rotation unit with respect to the cylinder unit by releasing the pressure contact, or a handle for releasing the fixation, the cylinder unit is provided with a first through hole. A second through hole that communicates with the first through hole is formed in the rotating portion, and the second through hole is loosely inserted into the first through hole and the second through hole; A stopper part is provided for restricting the entry into the first through hole or the second through hole and for restricting the separation distance between the facing surfaces of the cylinder unit and the rotating part, and the other end is A tightening shaft that protrudes from the second through hole or the first through hole and is provided with an attachment portion to which the handle is attached, and the tightening within the first through hole and the second through hole. It is arranged so that it can move in the longitudinal direction of the shaft. When the handle is operated to fix the rotating position of the rotating portion with respect to the cylinder unit, the first through hole and the second through hole are formed.
And a pressing member that presses the inner wall surface of the through hole so as to press the opposing surfaces of the cylinder unit and the rotating portion in a pressure-contacting manner. 2. The first arm is formed in a hollow cylindrical shape, a first ball joint is provided at the tip, and the second arm is formed in a hollow cylindrical shape, and the tip is formed. Is provided with a second ball joint, and when the pressing member pushes in the hollow portion of the first arm in a direction in which the opposing surfaces of the cylinder unit and the rotating portion are pressed against each other. Is provided with a first fixing member that is pushed in the distal direction by a pressing member to fix the first ball joint, and the pressing member is provided in the hollow portion of the second arm with the cylinder unit and the rotary member. A second fixing member for fixing the second ball joint by being pushed in the tip direction by the pushing member when pushing the surfaces facing each other with the moving portion in a pressure contacting manner is provided. The universal support device according to claim 1. 3. A time difference is provided in the movement of the first fixing member and the second fixing member when the handle is operated, in the first through hole or the second through hole. 3. The universal support device according to claim 2, further comprising a delay member for holding. 4. The urging means for urging the surfaces of the cylinder unit and the rotating portion, which face each other, toward each other, are provided.
Universal support device described. 5. A flexible screw according to claim 1, 2, 3 or 4, wherein a male screw is engraved on a mounting portion of the tightening shaft, and the handle is screwed to the male screw. Support device.