CA2152054A1 - Clamp - Google Patents
ClampInfo
- Publication number
- CA2152054A1 CA2152054A1 CA 2152054 CA2152054A CA2152054A1 CA 2152054 A1 CA2152054 A1 CA 2152054A1 CA 2152054 CA2152054 CA 2152054 CA 2152054 A CA2152054 A CA 2152054A CA 2152054 A1 CA2152054 A1 CA 2152054A1
- Authority
- CA
- Canada
- Prior art keywords
- holding body
- main shaft
- clamp
- pin
- held
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G7/00—Connections between parts of the scaffold
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
- E04G7/12—Clamps or clips for crossing members
- E04G7/14—Clamps or clips for crossing members for clamping the members independently
- E04G7/16—Clamps or clips for crossing members for clamping the members independently of which the clamping parts for the different members are rotatable with respect to one another
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A clamp of the present invention can eliminate the insufficient strength and the complication in working of a conventional clamp, and enables to hold even pipes having the different diameters. Also, there is provided a universal clamp which can hold the pipes orthogonally, parallel or diagonally by one set of clamps. In a main body of the clamp, a body to be held (7) having two concave portions are pivotally mounted on one end of a holding body (1) with a pin (8), and a groove-type auxiliary holding body (10) is pivotally mounted on the other end of the holding body with a pin (9). A thread is formed on the tip end of the auxiliary holding body (10) for screwing a bolt (11) by caulking a caulking reinforcement member (1) or mounting a nut (13) or thickening the tip end of the auxiliary holding body (10). Pipes are clamped by the holding body (1) and the body to be held (7), the auxiliary holding body (10) is covered on the body to be held (7) and the bolt (11) is tightened and pressedly fitted to the concave portion of the body to be held for holding the pipes. In case of constituting an orthogonally universal clamp, when one holding body (1) is rotated together with the main shaft (3) and the pin fit cover member (4) is pushed up, the other holding body (2) and the pin fit cover member (4) are released from the rotation of the main shaft. When two holding bodies (1, 2) are located to be orthogonal or parallel to each other, the pin fit cover member (4) is covered on the main shaft (3), and one holding body (1) is fixed to the other holding body (2).
Description
~ .I E. r~ l T~IIS 4M~ ;u AI TRANSLATlON l - 215 2 0 5 ~
SPECIFICATION
CLAMP
TECHNICAL FIELD
This invention relates to a clamp used for the connectlon of steel pipes or the like for a temporary scaffold and a shelf or the like.
BACKGROUND ART
A clamp conventionally used in general is structured such that a holding body is pivotally mounted on one end of a body to be held, a base portion of a clamping bolt is pivotally mounted on the other end of the holding body, a U-shaped concave portion is formed on the other end of the body to be held, a tip end portion of the bolt is fitted in the concave portion, and a nut is screwed onto the bolt to be clamped together.
In this case, when pipes are assembled parallel or orthogonally to each other, use has been made of a method of superimposing the bottoms of two clamps back to back and then riveting two clamps together, or providing a plurality of projections on the bottom of one clamp, drilling the bottom of the other clamp to give holes to be correspondingly fitted to the ~ - 2 - 21~205~
projections, inserting the projections into the holes and caulking the same for fixing. When pipes are assembled diagonally to each other, a circular window is provided in the bottoms of both clamps, and a cylinder fitted to the circular window is freely inserted and caulked so as to use the clamps as a universal clamp.
The clamps having the conventional structure involve the problems that since the concave groove is formed on the tip end of the body to be held, defects in sectioh are produced to often bring about a lack of strength, and working becomes complicated and so on.
In order to solve the problems described above, the present inventors have developed a clamp as disclosed in Japanese Utility Model Publication No.
57-18507. However, the present invention provides a further improved clamp structured to pressedly tighten a body to be held with bolts without providing any bolt insertion hole and to be applicable to pipes having different dimensions.
In general, pipes include a circular pipe in cross section and a square pipe in cross section, and the pipes respectively having two kinds of diameters are often used. Various clamps are required in combinations of the pipes having the different diameters with the case of assembling the pipes orthogonally, parallel or diagonally to each other. The management of these various clamps increases in cost and becomes 3 21~205 l complicated.
The present invention is devised in order to solve the problems described above.
DISCLOSURE OF THE INVENTION
A clamp of the present invention is characterized in that a holding body ~ is pivotally mounted on one end of a body to be held 7, both base portions of a groove type auxiliary holding body 10 are pivotally mounted on the other end of the holding body 1, and a bolt 11 is screwed onto the tip end of the auxiliary holding body 10 .
A spherical tip end portion of the bolt 11 is pressed and fitted to a spherically concave receiving portion A2 on the outside surface at the other end of the body to be held 7 in case of using a thick pipe, while being pressed and fitted to a spherically concave receiving portion A1 on the outside surface at the other end of the body to be held 4 in case of using a thin pipe, so that the pipe is uniformly pressed and held by the holding body 2, the body to be held 7 and a hinge portion of the auxiliary holding body 10.
Further, in order to constitute an orthogonally universal clamp, a square hole la is bored in the holding body 1, and a circular hole 2a is bored in the holding body 2. Then, a main shaft 3 composed of a square column portion and a cylindrical portion is _ 4 21~05l inserted into the square hole la and the circular hole 2a, and the main shaft 3 and the holding body 1 are rotated as one body by the square column portion of the main shaft 3, while the holding body 2 is released from the rotation of the main shaft 3 by the cylindrical portion of the main shaft 3. The side of the square column portion of the main shaft 3 is fixedly attached to the holding body 1, and the other end of the main shaft 3 constitutes a rotary plate 3a. A pin fit cover member-4 is pivotally mounted on the holding body 2 with a pin 5.
When the holding body 1 and the holding body 2 are used as a universal clamp, use is made under the condition that the pin fit cover member 4 is pushed up to release the holding body 1 and the holding body 2 from the rotation. When the holding body 1 and the holding body 2 fixed orthogonally or parallel to each other are used, the pin fit cover member 4 is covered over the rotary plate 3a of the main shaft 3 to fix the holding body 1 and the holding body 2 for rotation.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. l(a) is a front view showing an embodiment in case of using circular pipe clamps combined with each other at right angles;
Fig. l(b) is a top view of Fig. l(a);
Fig. 2(a) is a front view showing an embodiment ~ _ 5 - ~ S l in case of using circular pipe clamps combined diagonally to each other;
Fig. 2(b) is a top view of Fig. 2(a);
Fig. 3 is a view showing an embodiment applied to a small-diameter circular pipe in case of welding a nut 13 to a top portion of an auxiliary holding body 10;
Fig. 4(a) is a front view showing an embodiment in case of using square pipe clamps combined with each other at right angles;
Fig. 4(b) is a top view of Fig. 4(a);
Fig. 5(a) is a front view showing an embodiment in case of using square pipe clamps combined diagonally to each other;
Fig. 5(b) is a top view of Fig. 5(a);
Fig. 6 is a view showing the operation of a universal clamp;
Fig. 7(a) is a side view showing a main shaft 3 having a square rotary plate 3a;
Fig. 7(b) is a top view of Fig. 7(a);
Fig. 7(c) is a bottom view of Fig. 7(a);
Fig. 8(a) is a view showing a main shaft 3 having a circular rotary plate 3a formed with a square hole 3d;
Fig. 8(b) is a view showing a pin fit cover member 4 having a square projection 4b fitted to the square hole 3d;
Fig. 9(a) is a view showing a main shaft 3 having a circular rotary plate 3a formed with a cross groove - 6 - 215 20~ 4 3e;
Fig. 9(b) is a view showing a pin fit cover member 4 having a projection 4C fitted to the cross groove;
Fig. 10(a) is a view showing a caulking reinforcement washer; and Fig. 10(b) is a side view of Fig. 10(a).
BEST MODE FOR EMBODYING THE PRESENT INVENTION
Figs. 1, 2 and 4 show an embodiment in case of using a thick pipe, while Figs. 3 and 5 show an embodiment in case of using a thin pipe, respectively.
A clamp of the present invention comprises a holding body 2 pivotally mounted on one end of a body to be held 7 with a pin 8. Both base portions of a groove-type auxiliary holding body 10 are pivotally mounted on the other end of the holding body 1 with a pin 9, and a caulking reinforcement member 12 is caulked to form an external thread at the tip end of the auxiliary holding body 10 or a nut 13 is fixedly attached to the tip end of the auxiliary holding body 10. A bolt 11 having a spherical tip end is screwed onto the external thread. Incidentally, the tip end of the auxiliary holding body 10 may be thickened so that an external thread is formed on the thickened portion and the bolt 11 is screwed onto the external thread without using the caulking reinforcement member 12 and - 21~2054 the nut 13. Spherically concave receiving portions Al and A2 are formed on the outside surface at the other end of the body to be held.
In case of using the clamp, pipes Bl and B2 are surrounded with the holding body 1 and the body to be held 7, and the tip end of the auxiliary holding body 10 is superimposed on the body to be held 7.
Subsequently, the bolt 11 is rotated to pressedly fit the tip end of the bolt 11 to the concave receiving portion Al or A2 on the outside surface at the other end of the body to be held.
Fig. 6 is a view showing the operation of a clamp which is made freely orthogonal. Hereinafter will be described the operation of the clamp which is made freely orthogonal with reference to Fig. 6.
A hole 2a is bored in the holding body 2 of the clamp, and a cylindrical portion 3b of the main shaft 3 is freely inserted into the hole 2a. An octagonal rotary plate 3a is formed at the top of the main shaft.
The cylindrical portion 3b extending from the octagonal rotary plate 3a of the main shaft 3 is inserted into the hole 2a of the holding body 2. A square column portion 3c extending from the cylindrical portion 3b of the main shaft 3 is inserted into a square hole bored in the holding body 1 and fixedly attached to the holding body 1, and the main shaft 3 is rotated together with the holding body 1. A pin fit cover member 4 is pivotally S ~
mounted on the holding body 2 with a pin 5.
In this case, when the main shaft 3 extends through the holding body 1, use may be made of a caulking reinforcement washer 6.
Next will be described the operation of a clamp which is used as a freely orthogonal and parallel clamp.
(a) When the pipes are held diagonally to each other, the clamp is used under the freely movable condition by pushing up the pin fit cover member 4 to release the rotation of the holding body 2 and the pin fit cover member 4 from the rotation of the main shaft 3 and the holding body 1.
(b) When the pipes are held parallel or orthogonally to each other, the clamp is used under the condition that the rotary plate 3a, thus, the main shaft 3 and the holding body 1 are fixed parallel or orthogonally to each other by means of a projection 4a of the pin fit cover member 4 and a projection 2b of the holding body 2 by rotating the main shaft 3 and the holding body 1 parallel or orthogonally to the holding body 2, and then covering the pin fit cover member 4 on the rotary plate 3a of the main shaft.
Fig. 1 shows an embodiment in case of using the circular pipe clamps combined with each other at right angles. In this embodiment, a caulking reinforcement member 6 is used for the main shaft.
Fig. 2 shows an embodiment in case of using the 21S205~
circular pipe clamps combined diagonally to each other.
In this embodiment, the caulking reinforcement member is used for the main shaft.
Fig. 3 shows an embodiment of clamping a thin circular pipe.
Fig. 4 shows an embodiment in case of using the square pipe clamps combined orthogonally to each other.
Fig. 5 shows an embodiment in case of using the square pipe clamps combined diagonally to each other. In either of the embodiments shown in Figs. 4 and 5, any caulking reinforcement member 6 is not used.
Fig. 6 is a view for explaining the operation for making freely orthogonal;
Fig. 7 is a view showing a main shaft 3 having a square rotary plate 3a;
Fig. 8 shows a combination of the main shaft 3 having the circular rotary plate 3a formed with the square hole 3d and the pin fit cover member 4 having the square projection 4b fitted to the square hole 3d.
Fig. 9 shows a combination of the main shaft 3 having the circular rotary plate 3a formed with a cross groove 3e and the pin fit cover member 4 having the projection 4c fitted to the cross groove.
Fig. 10 is a view showing the caulking reinforcement washer.
- 215205~
POSSIBILITY OF INDUSTRIAL UTILIZATION
As has been described above, the clamp of the present invention is provided with the auxiliary holding body, and the bolt is screwed onto the tip end of the auxiliary holding body to pressedly fit the spherical tip end of the bolt to the spherically concave receiving portion on the outside surface at the other end of the holding body. Thus, it is not necessary to provide any concave groove on the body to be held.
Therefore, the clamp of the present invention is free from any defect in cross section, and there is no fear of breakage when used. Further, since the tip end of the bolt and the concave receiving portion of the body to be held are brought into contact with each other on their spherical surfaces, there is no problem in rotating and tightening the bolts.
Since two concave receiving portions are provided on the body to be held, the clamp can be applied to pipes having different diameters with safety and security.
Furthermore, it is possible to reduce the number of combinations of clamps with circular and square pipes in cross section depending on the size of the pipe diameters, and the orthogonal, parallel or diagonal assembling of the pipes. Thus, the cost for the management can be reduced, and the management is simplified.
SPECIFICATION
CLAMP
TECHNICAL FIELD
This invention relates to a clamp used for the connectlon of steel pipes or the like for a temporary scaffold and a shelf or the like.
BACKGROUND ART
A clamp conventionally used in general is structured such that a holding body is pivotally mounted on one end of a body to be held, a base portion of a clamping bolt is pivotally mounted on the other end of the holding body, a U-shaped concave portion is formed on the other end of the body to be held, a tip end portion of the bolt is fitted in the concave portion, and a nut is screwed onto the bolt to be clamped together.
In this case, when pipes are assembled parallel or orthogonally to each other, use has been made of a method of superimposing the bottoms of two clamps back to back and then riveting two clamps together, or providing a plurality of projections on the bottom of one clamp, drilling the bottom of the other clamp to give holes to be correspondingly fitted to the ~ - 2 - 21~205~
projections, inserting the projections into the holes and caulking the same for fixing. When pipes are assembled diagonally to each other, a circular window is provided in the bottoms of both clamps, and a cylinder fitted to the circular window is freely inserted and caulked so as to use the clamps as a universal clamp.
The clamps having the conventional structure involve the problems that since the concave groove is formed on the tip end of the body to be held, defects in sectioh are produced to often bring about a lack of strength, and working becomes complicated and so on.
In order to solve the problems described above, the present inventors have developed a clamp as disclosed in Japanese Utility Model Publication No.
57-18507. However, the present invention provides a further improved clamp structured to pressedly tighten a body to be held with bolts without providing any bolt insertion hole and to be applicable to pipes having different dimensions.
In general, pipes include a circular pipe in cross section and a square pipe in cross section, and the pipes respectively having two kinds of diameters are often used. Various clamps are required in combinations of the pipes having the different diameters with the case of assembling the pipes orthogonally, parallel or diagonally to each other. The management of these various clamps increases in cost and becomes 3 21~205 l complicated.
The present invention is devised in order to solve the problems described above.
DISCLOSURE OF THE INVENTION
A clamp of the present invention is characterized in that a holding body ~ is pivotally mounted on one end of a body to be held 7, both base portions of a groove type auxiliary holding body 10 are pivotally mounted on the other end of the holding body 1, and a bolt 11 is screwed onto the tip end of the auxiliary holding body 10 .
A spherical tip end portion of the bolt 11 is pressed and fitted to a spherically concave receiving portion A2 on the outside surface at the other end of the body to be held 7 in case of using a thick pipe, while being pressed and fitted to a spherically concave receiving portion A1 on the outside surface at the other end of the body to be held 4 in case of using a thin pipe, so that the pipe is uniformly pressed and held by the holding body 2, the body to be held 7 and a hinge portion of the auxiliary holding body 10.
Further, in order to constitute an orthogonally universal clamp, a square hole la is bored in the holding body 1, and a circular hole 2a is bored in the holding body 2. Then, a main shaft 3 composed of a square column portion and a cylindrical portion is _ 4 21~05l inserted into the square hole la and the circular hole 2a, and the main shaft 3 and the holding body 1 are rotated as one body by the square column portion of the main shaft 3, while the holding body 2 is released from the rotation of the main shaft 3 by the cylindrical portion of the main shaft 3. The side of the square column portion of the main shaft 3 is fixedly attached to the holding body 1, and the other end of the main shaft 3 constitutes a rotary plate 3a. A pin fit cover member-4 is pivotally mounted on the holding body 2 with a pin 5.
When the holding body 1 and the holding body 2 are used as a universal clamp, use is made under the condition that the pin fit cover member 4 is pushed up to release the holding body 1 and the holding body 2 from the rotation. When the holding body 1 and the holding body 2 fixed orthogonally or parallel to each other are used, the pin fit cover member 4 is covered over the rotary plate 3a of the main shaft 3 to fix the holding body 1 and the holding body 2 for rotation.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. l(a) is a front view showing an embodiment in case of using circular pipe clamps combined with each other at right angles;
Fig. l(b) is a top view of Fig. l(a);
Fig. 2(a) is a front view showing an embodiment ~ _ 5 - ~ S l in case of using circular pipe clamps combined diagonally to each other;
Fig. 2(b) is a top view of Fig. 2(a);
Fig. 3 is a view showing an embodiment applied to a small-diameter circular pipe in case of welding a nut 13 to a top portion of an auxiliary holding body 10;
Fig. 4(a) is a front view showing an embodiment in case of using square pipe clamps combined with each other at right angles;
Fig. 4(b) is a top view of Fig. 4(a);
Fig. 5(a) is a front view showing an embodiment in case of using square pipe clamps combined diagonally to each other;
Fig. 5(b) is a top view of Fig. 5(a);
Fig. 6 is a view showing the operation of a universal clamp;
Fig. 7(a) is a side view showing a main shaft 3 having a square rotary plate 3a;
Fig. 7(b) is a top view of Fig. 7(a);
Fig. 7(c) is a bottom view of Fig. 7(a);
Fig. 8(a) is a view showing a main shaft 3 having a circular rotary plate 3a formed with a square hole 3d;
Fig. 8(b) is a view showing a pin fit cover member 4 having a square projection 4b fitted to the square hole 3d;
Fig. 9(a) is a view showing a main shaft 3 having a circular rotary plate 3a formed with a cross groove - 6 - 215 20~ 4 3e;
Fig. 9(b) is a view showing a pin fit cover member 4 having a projection 4C fitted to the cross groove;
Fig. 10(a) is a view showing a caulking reinforcement washer; and Fig. 10(b) is a side view of Fig. 10(a).
BEST MODE FOR EMBODYING THE PRESENT INVENTION
Figs. 1, 2 and 4 show an embodiment in case of using a thick pipe, while Figs. 3 and 5 show an embodiment in case of using a thin pipe, respectively.
A clamp of the present invention comprises a holding body 2 pivotally mounted on one end of a body to be held 7 with a pin 8. Both base portions of a groove-type auxiliary holding body 10 are pivotally mounted on the other end of the holding body 1 with a pin 9, and a caulking reinforcement member 12 is caulked to form an external thread at the tip end of the auxiliary holding body 10 or a nut 13 is fixedly attached to the tip end of the auxiliary holding body 10. A bolt 11 having a spherical tip end is screwed onto the external thread. Incidentally, the tip end of the auxiliary holding body 10 may be thickened so that an external thread is formed on the thickened portion and the bolt 11 is screwed onto the external thread without using the caulking reinforcement member 12 and - 21~2054 the nut 13. Spherically concave receiving portions Al and A2 are formed on the outside surface at the other end of the body to be held.
In case of using the clamp, pipes Bl and B2 are surrounded with the holding body 1 and the body to be held 7, and the tip end of the auxiliary holding body 10 is superimposed on the body to be held 7.
Subsequently, the bolt 11 is rotated to pressedly fit the tip end of the bolt 11 to the concave receiving portion Al or A2 on the outside surface at the other end of the body to be held.
Fig. 6 is a view showing the operation of a clamp which is made freely orthogonal. Hereinafter will be described the operation of the clamp which is made freely orthogonal with reference to Fig. 6.
A hole 2a is bored in the holding body 2 of the clamp, and a cylindrical portion 3b of the main shaft 3 is freely inserted into the hole 2a. An octagonal rotary plate 3a is formed at the top of the main shaft.
The cylindrical portion 3b extending from the octagonal rotary plate 3a of the main shaft 3 is inserted into the hole 2a of the holding body 2. A square column portion 3c extending from the cylindrical portion 3b of the main shaft 3 is inserted into a square hole bored in the holding body 1 and fixedly attached to the holding body 1, and the main shaft 3 is rotated together with the holding body 1. A pin fit cover member 4 is pivotally S ~
mounted on the holding body 2 with a pin 5.
In this case, when the main shaft 3 extends through the holding body 1, use may be made of a caulking reinforcement washer 6.
Next will be described the operation of a clamp which is used as a freely orthogonal and parallel clamp.
(a) When the pipes are held diagonally to each other, the clamp is used under the freely movable condition by pushing up the pin fit cover member 4 to release the rotation of the holding body 2 and the pin fit cover member 4 from the rotation of the main shaft 3 and the holding body 1.
(b) When the pipes are held parallel or orthogonally to each other, the clamp is used under the condition that the rotary plate 3a, thus, the main shaft 3 and the holding body 1 are fixed parallel or orthogonally to each other by means of a projection 4a of the pin fit cover member 4 and a projection 2b of the holding body 2 by rotating the main shaft 3 and the holding body 1 parallel or orthogonally to the holding body 2, and then covering the pin fit cover member 4 on the rotary plate 3a of the main shaft.
Fig. 1 shows an embodiment in case of using the circular pipe clamps combined with each other at right angles. In this embodiment, a caulking reinforcement member 6 is used for the main shaft.
Fig. 2 shows an embodiment in case of using the 21S205~
circular pipe clamps combined diagonally to each other.
In this embodiment, the caulking reinforcement member is used for the main shaft.
Fig. 3 shows an embodiment of clamping a thin circular pipe.
Fig. 4 shows an embodiment in case of using the square pipe clamps combined orthogonally to each other.
Fig. 5 shows an embodiment in case of using the square pipe clamps combined diagonally to each other. In either of the embodiments shown in Figs. 4 and 5, any caulking reinforcement member 6 is not used.
Fig. 6 is a view for explaining the operation for making freely orthogonal;
Fig. 7 is a view showing a main shaft 3 having a square rotary plate 3a;
Fig. 8 shows a combination of the main shaft 3 having the circular rotary plate 3a formed with the square hole 3d and the pin fit cover member 4 having the square projection 4b fitted to the square hole 3d.
Fig. 9 shows a combination of the main shaft 3 having the circular rotary plate 3a formed with a cross groove 3e and the pin fit cover member 4 having the projection 4c fitted to the cross groove.
Fig. 10 is a view showing the caulking reinforcement washer.
- 215205~
POSSIBILITY OF INDUSTRIAL UTILIZATION
As has been described above, the clamp of the present invention is provided with the auxiliary holding body, and the bolt is screwed onto the tip end of the auxiliary holding body to pressedly fit the spherical tip end of the bolt to the spherically concave receiving portion on the outside surface at the other end of the holding body. Thus, it is not necessary to provide any concave groove on the body to be held.
Therefore, the clamp of the present invention is free from any defect in cross section, and there is no fear of breakage when used. Further, since the tip end of the bolt and the concave receiving portion of the body to be held are brought into contact with each other on their spherical surfaces, there is no problem in rotating and tightening the bolts.
Since two concave receiving portions are provided on the body to be held, the clamp can be applied to pipes having different diameters with safety and security.
Furthermore, it is possible to reduce the number of combinations of clamps with circular and square pipes in cross section depending on the size of the pipe diameters, and the orthogonal, parallel or diagonal assembling of the pipes. Thus, the cost for the management can be reduced, and the management is simplified.
Claims
1. (Amended) A clamp, comprising:
a holding body (2) pivotally mounted on one end of a body to be held (7) with a pin (8);
a groove-like auxiliary holding body (10) having both base portions pivotally mounted on the other end of the holding body (1) with a pin (9);
said holding body (1), said body to be held (2) and said groove-like auxiliary holding body (10) being formed to be circular in cross section in case of a circular pipe in cross section, while being formed to be square in cross section in case of a square pipe in cross section;
a caulking reinforcement member (12) caulked to form an external thread at the tip end of the auxiliary holding body (10) or a nut (13) fixedly attached to the tip end of said auxiliary holding body (10);
a bolt (11) having a spherical tip end and screwed onto the external thread; and spherically concave portions (A1), (A2) provided on the outside surface of the body to be held on the side opposite to the pin (8);
wherein in case of using the clamp, pipes (B1), (B2) are surrounded with the holding body (1) and the body to be held (7) to superimpose the tip end of the auxiliary holding body (10) on the body to be held (7), and subsequently, the bolt (11) is fastened to pressedly fit the tip end of the bolt (11) to the concave receiving portions (A1), (A2) on the outside surface of the body to be held on the side opposite to the pin (8) so as to clamp pipes having different diameters;
in case of clamping the pipes to be made freely orthogonal and parallel, a cylindrical portion (3b) of a main shaft (3) is freely inserted into a hole (2a) bored in the holding body (2) of said clamp, an octagonal rotary plate (3a) is formed at the top of the main shaft, the cylindrical portion (3b) extending from the octagonal rotary plate (3a) of the main shaft (3) is inserted into the hole (2a) of the holding body (2), a square column portion (3c) extending from the cylindrical portion (3b) of the main shaft (3) is inserted into a square hole (1a) bored in the holding body (1) and fixedly attached to the holding body (1), said main shaft (3) is rotated together with the holding body (1), a pin fit cover member (4) is pivotally mounted on the holding body (2) with a pin (5), said pin fit cover member (4) is covered on said octagonal rotary plate (3a) at a position where the holding bodies (1), (2) are made parallel or orthogonal to each other, and said rotary plate (3a) that is, the main shaft (3) and the holding body (1) are fixed parallel or orthogonally to the holding body (2) by means of a projection (4a) of the pin fit cover member (4) and a projection (2b) of the holding body (2); and in case of clamping the pipes diagonally to each other, said clamp is used under the freely movable condition by pushing up said fit cover member (4) upwards to release the rotation of the holding body (2) and the fit cover member (4) from the rotation of the main shaft (3) and the holding body (1).
a holding body (2) pivotally mounted on one end of a body to be held (7) with a pin (8);
a groove-like auxiliary holding body (10) having both base portions pivotally mounted on the other end of the holding body (1) with a pin (9);
said holding body (1), said body to be held (2) and said groove-like auxiliary holding body (10) being formed to be circular in cross section in case of a circular pipe in cross section, while being formed to be square in cross section in case of a square pipe in cross section;
a caulking reinforcement member (12) caulked to form an external thread at the tip end of the auxiliary holding body (10) or a nut (13) fixedly attached to the tip end of said auxiliary holding body (10);
a bolt (11) having a spherical tip end and screwed onto the external thread; and spherically concave portions (A1), (A2) provided on the outside surface of the body to be held on the side opposite to the pin (8);
wherein in case of using the clamp, pipes (B1), (B2) are surrounded with the holding body (1) and the body to be held (7) to superimpose the tip end of the auxiliary holding body (10) on the body to be held (7), and subsequently, the bolt (11) is fastened to pressedly fit the tip end of the bolt (11) to the concave receiving portions (A1), (A2) on the outside surface of the body to be held on the side opposite to the pin (8) so as to clamp pipes having different diameters;
in case of clamping the pipes to be made freely orthogonal and parallel, a cylindrical portion (3b) of a main shaft (3) is freely inserted into a hole (2a) bored in the holding body (2) of said clamp, an octagonal rotary plate (3a) is formed at the top of the main shaft, the cylindrical portion (3b) extending from the octagonal rotary plate (3a) of the main shaft (3) is inserted into the hole (2a) of the holding body (2), a square column portion (3c) extending from the cylindrical portion (3b) of the main shaft (3) is inserted into a square hole (1a) bored in the holding body (1) and fixedly attached to the holding body (1), said main shaft (3) is rotated together with the holding body (1), a pin fit cover member (4) is pivotally mounted on the holding body (2) with a pin (5), said pin fit cover member (4) is covered on said octagonal rotary plate (3a) at a position where the holding bodies (1), (2) are made parallel or orthogonal to each other, and said rotary plate (3a) that is, the main shaft (3) and the holding body (1) are fixed parallel or orthogonally to the holding body (2) by means of a projection (4a) of the pin fit cover member (4) and a projection (2b) of the holding body (2); and in case of clamping the pipes diagonally to each other, said clamp is used under the freely movable condition by pushing up said fit cover member (4) upwards to release the rotation of the holding body (2) and the fit cover member (4) from the rotation of the main shaft (3) and the holding body (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4/344402 | 1992-12-24 | ||
| JP4344402A JP3030451B2 (en) | 1992-12-24 | 1992-12-24 | Clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2152054A1 true CA2152054A1 (en) | 1994-07-07 |
Family
ID=18368980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2152054 Abandoned CA2152054A1 (en) | 1992-12-24 | 1993-12-17 | Clamp |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0691443A1 (en) |
| JP (1) | JP3030451B2 (en) |
| CA (1) | CA2152054A1 (en) |
| TW (1) | TW233275B (en) |
| WO (1) | WO1994015044A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007013906A (en) | 2005-06-03 | 2007-01-18 | Fujitsu Ltd | Receiving device |
| CN112339280B (en) * | 2020-10-23 | 2022-09-02 | 河北华盾管道制造有限公司 | High density polyethylene pipe fitting tubular product splicing apparatus |
| KR102305213B1 (en) * | 2021-06-16 | 2021-09-28 | (주)티씨케이 | A clamp for Chemical-Mechanical Polishing with High-strength safety structure and High-performance anti-loosening function |
| JP2024075931A (en) * | 2022-11-24 | 2024-06-05 | 株式会社タカミヤ | Clamp |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1706215A (en) * | 1926-01-26 | 1929-03-19 | American Safety Device Co | Adjustable coupling means |
| GB749754A (en) * | 1952-02-20 | 1956-05-30 | Joost Wijnen | Improvements in or relating to clamps for structures composed of tubes |
| DE1101867B (en) * | 1957-04-02 | 1961-03-09 | Wilhelm Neidmann | Coupling or clamp, especially for scaffolding pipes |
| JPS3523536Y1 (en) * | 1958-05-15 | 1960-09-16 | ||
| JPS394825Y1 (en) * | 1959-01-23 | 1964-02-26 | ||
| JPS3823355Y1 (en) * | 1962-05-28 | 1963-11-05 | ||
| JPS413012Y1 (en) * | 1963-06-19 | 1966-02-22 | ||
| JPS50103416U (en) * | 1974-01-28 | 1975-08-26 | ||
| JPS5718507Y2 (en) * | 1976-02-17 | 1982-04-19 | ||
| DE2619200A1 (en) * | 1976-04-30 | 1977-11-10 | Kinski Ernst | Universal adjustable steel tube coupling - has common rotation core for two halves and interfacing geared rims |
| JPS601841U (en) * | 1983-05-31 | 1985-01-09 | 株式会社 国元商会 | Temporary clamp unit |
| JPS60184938U (en) * | 1984-05-17 | 1985-12-07 | 佐藤 政太郎 | Connection device for frame pipe materials |
| JPS61140203U (en) * | 1985-02-20 | 1986-08-30 |
-
1992
- 1992-12-24 JP JP4344402A patent/JP3030451B2/en not_active Expired - Lifetime
-
1993
- 1993-12-17 EP EP94903022A patent/EP0691443A1/en not_active Withdrawn
- 1993-12-17 CA CA 2152054 patent/CA2152054A1/en not_active Abandoned
- 1993-12-17 WO PCT/JP1993/001837 patent/WO1994015044A1/en not_active Application Discontinuation
-
1994
- 1994-01-07 TW TW83100137A patent/TW233275B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| EP0691443A1 (en) | 1996-01-10 |
| JP3030451B2 (en) | 2000-04-10 |
| JPH06193256A (en) | 1994-07-12 |
| TW233275B (en) | 1994-11-01 |
| WO1994015044A1 (en) | 1994-07-07 |
| EP0691443A4 (en) | 1995-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |