JPH0562651U - Clamp device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a clamp device capable of significantly improving the supporting strength, having a simple structure, facilitating manufacture, and reducing the cost. [Structure] U-shaped clamp 1 having a clamping screw 6 on one of the opposing legs 2 and 3 of the U-shaped clamp body 5.
And a corner portion 5a between the leg portion 3 of the U-shaped clamp body 5 on the side facing the clamping screw 6 and the bottom portion 4 connecting the both leg portions 2 and 3, to a spindle parallel to the ridge direction of this corner portion. Movable base 8 pivotally mounted by means of 9 and movable base 8
Fixed to the U-shaped clamp body 5 and the movable base 8 when the clamp mounting seat 8a is in a direction substantially parallel to the leg portion 3. Fixing holes 11, 13 and the fixing holes 11, 13 which are aligned with each other when the movable table 8 is rotated 90 degrees and the clamp mounting seat 8a is oriented substantially parallel to the bottom portion 4.
12 is provided, and the movable table 8 is fixed by a fixing tool 14 that can be selectively inserted and fixed in these fixing holes.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clamp device used for attaching a scaffolding pipe or a handrail pipe attached to a scaffolding to a flange portion (hereinafter referred to as a plate portion) such as a steel frame. A U-shaped clamp that is held by the U-shaped clamp, and a pipe clamp that is swingably connected to the U-shaped clamp to hold the pipe, and the fixing angle of the pipe clamp is determined by the plate of the plate body that is bitten by the U-shaped clamp. The present invention relates to a clamp device that can be fixed parallel or perpendicular to a plane.

[0002]

[Prior Art]

 As this type of conventional clamp device, there is a clamp device in which a U-shaped clamp and a pipe clamp are pivotally connected by a square root bolt so that the connection angle of the pipe clamp can be freely changed. When a pipe is supported at a position where a load is applied from the pipe clamp to the square root bolt, the load concentrates on the square root bolt, which may deform or damage the square root portion of the bolt. Since the square hole through which the root bolt is inserted requires a high degree of accuracy, it took a lot of time and effort to manufacture, and the cost was high.

In view of the above problems, the present invention provides a crumpling device which can significantly improve the support strength of the pipe clamp connecting portion, can be manufactured with a simple structure and can be manufactured at low cost. With the goal.

[0004]

[Means for Solving the Problems]

 The clamping device of the present invention comprises a U-shaped clamp having a clamp screw threaded through one of the opposite legs of the U-shaped clamp body, and a side of the U-shaped clamp body facing the clamp screw. A movable base pivotally supported by a supporting shaft parallel to the ridgeline direction of the corner at or near the corner between the leg of the base and the bottom connecting the two legs, and a clamp for the movable base. A pipe clamp mounted on a mounting seat, and the U-shaped clamp body and the movable base are arranged such that the clamp mounting seat is oriented substantially parallel to the leg portion on the side facing the clamp screw. Sometimes, fixing holes that match each other and fixing holes that match each other when the movable base rotates 90 degrees and the clamp mounting seat is in a direction substantially parallel to the bottom portion are provided. Selective for holes The inserted lockable fixture is characterized in that so as to fix the movable table.

[0005]

【Example】

 An embodiment will be described with reference to the drawings. FIGS. 1 to 3 show a clamping device according to the present invention. In these drawings, 1 denotes a flange portion such as a steel frame, that is, a plate body portion F. C-shaped clamp having a U-shaped clamp body 5 composed of opposite leg portions 2 and 3 and a bottom portion 4 connecting them, and is used for clamping one leg portion 2 of the leg portions 2 and 3. A screw 6 is threaded through the screw 6, and a disc spring 7 is attached to the tip of the screw 6. Reference numeral 8 denotes a movable table, which is provided at a corner portion 5a (or a position in the vicinity thereof) between the leg portion 3 on the side of the clamp body 5 facing the clamp screw 6 and the bottom portion 4 and a ridge line direction of the corner portion. A pipe 9 for holding a pipe P for scaffolding or the like is attached to a clamp attachment seat 8a of the movable base 8 so as to be pivotable by a parallel support shaft 9 so as to be capable of oscillating.

The U-shaped clamp body 5 and the movable base 8 are fitted to each other when the clamp mounting seat 8 a is oriented substantially parallel to the leg portion 3 on the side facing the clamp screw 6. The fixing holes 11 and 12 and the fixing holes 11 and 13 which are aligned with each other when the movable table 8 is rotated by 90 degrees and the clamp mounting seat 8a is oriented substantially parallel to the bottom portion 4 are provided. The movable table 8 is fixed by a fixing tool 14 which can be selectively inserted and fixed in these fixing holes 11, 12, and 13. The fixing screw 11 on the U-shaped clamp body 5 side is provided through the reinforcing rib portion on the leg 3 side.

As is apparent from FIG. 3, the movable table 8 is made up of a U-shaped member that sandwiches the clamp body 5 of the U-shaped clamp 1, and has a substantially L-shaped configuration. It is formed by plate portions 8b, 8b and a bottom plate portion that connects the both side plate portions and forms the clamp mounting seat 8a, and the fixing hole 12 is formed at one end of each L-shaped side plate portion 8b. The fixing holes 13 are drilled at the other ends. Also, the side plates 8b are arranged such that the clamp mounting seats 8a are oriented substantially parallel to the leg portions 3 facing the clamp screws 6 and one of the fixing holes 11 on the clamp body 5 side and the movable table 8 side. Right-angled inner side corners 5b and 5c of the corner portion 5a of the U-shaped clamp body 5 and the clamp mounting seat 8a described above are connected to the bottom portion 4 when the fixing holes 12 are aligned with each other. When the fixing holes 11 on the side of the clamp body 5 and the fixing holes 13 on the other side of the movable base 8 are aligned in a substantially parallel direction, the side edges that match the inner surface 5b of the leg portion 3 are described. And a section 16.

The fixture 14 is composed of a bolt 14a and a nut 14b screwed to the bolt 14a as shown in the drawing. The bolt 14a is selectively and appropriately inserted through the fixing holes 11, 12, and 13 to form a nut. The movable base 8 is fixed by fastening with 14b. In addition to the bolt and nut, the fixing tool 14 is a combination of a headed pin and a retaining tool (eg, pine needle pin or beta pin) that is detachable from the tip of the pin. Can be used. Further, in the case of using a bolt nut, the fixing hole on the side through which the tip of the bolt penetrates can be a screw hole, and the nut can be omitted or the nut can be fixed by welding.

As shown in FIG. 3, the support shaft 9 is composed of a bolt. The bolt 9 has a bolt insertion hole 17 penetrating each side plate 8b of the movable base 8 and a U-shaped clamp body as shown in FIG. 5 is inserted into the bearing tube 18 fixed to the outer corner of the corner portion 5a of FIG. 5, and a nut 19 is screwed to the tip of the bearing tube 18, whereby the movable base 8 is pivotally attached to the clamp body 5 so as to be agitable. To do.

The pipe clamp 10 has a pair of holding bodies 20 and 21 pivotally connected to each other at one end thereof, and holds the pipe P between the two holding bodies 20 and 21, and The tip of the clamp screw shaft 22 pivotally supported on the other end of the holding body 20 is inserted into the engaging groove 23 of the other end of the other holding body 21, and the nut 24 is tightened to tighten the pipe. It holds and fixes P. As shown in FIG. 3, a bolt insertion hole 25 is provided in one of the holding bodies 20 of the pipe clamp 10, and the clamp mounting seat (bottom plate portion) of the movable table 8 is opened from this hole 25. ) The pipe clamp 10 is rotatably attached to the clamp attachment seat 8a of the movable table 8 by screwing and fastening the stepped bolt 27 into the nut 26 embedded in the 8a.

Next, a description will be given of an example of use of the clamp device having the above-described configuration. When vertically fixing the pipe P to a horizontally extending plate body portion F such as a steel frame, as shown in FIG. Then, with the movable base 8 held in a position such that its clamp mounting seat 8a is parallel to the bottom portion 4 of the U-shaped clamp main body 5, the bolt 14a of the fixture 14 is attached to the U-shaped clamp main body 5 side. The movable table 8 is fixed to the U-shaped clamp main body 5 by inserting the fixing table 11 and one fixing hole 13 on the movable table 8 side and screwing and fastening the nut 14b. At this time, the side edge portion 16 of the movable body 8 coincides with the inner side surface 5b of the leg portion 3 of the U-shaped clamp body 5.

Then, the U-shaped clamp main body 5 is fitted into the plate portion F, and the ends of the plate portion F are attached to the right-angled inner side surfaces 5b and 5c of the corner portion 5a of the U-shaped clamp main body 5. The plate body part F is bitten by abutting and tightening the clamp screw 6. At this time, the side edge portion 16 of the movable table 8 contacts and locks with the plate surface (horizontal surface) of the plate body portion F. The pipe P is held and fixed to the pipe clamp 10 fixed in this way in the vertical direction as shown in FIG. In this case, even if the load from the pipe P is applied to the movable table 8, the load can be supported by the support shaft 9 and the fixture 14, and depending on the direction of the load, the side edge portion 16 of the movable table 8 can be supported. Since it can also be supported by the plate body portion F via, the support strength of the pipe clamp 10 is large.

When the pipe P is fixed in parallel with the plate portion F, the movable table 8 is rotated 90 degrees so that the clamp mounting seat 8a has a U-shaped clamp body 5 as shown in FIG. The bolt 14a of the fixture 14 is positioned so as to be in parallel with the leg portion 3 of the C-shaped clamp body 5 and the other fixing hole 12 of the movable base 8 side. The movable base 8 is fixed to the U-shaped clamp main body 5 by inserting the nut 14b by screwing it through. Then, the U-shaped clamp main body 5 is fitted into the plate body portion F, the end portion of the plate body portion F is abutted against the right-angled inner side surface 5b of the corner portion 5a, and the screw 6 is tightened to tighten the plate body portion. Let F bite. As a result, the pipe clamp 10 is in a state in which the pipe P can be fixed horizontally. At this time, the right-angled inner corner portion 15 of the movable table 8 contacts the plate surface and the end surface of the plate body portion F. In this case, the load from the pipe P can be supported by the support shaft 9 and the fixture 14, and also by the plate body portion F through the right-angled inner corner portion 15, so that the support strength of the pipe clamp 10 is greater. Becomes

In this embodiment, the movable table 8 is provided with right-angled inner corner portions 15 and side edge portions 16 that come into contact with and lock to the plate surface and the end surface of the plate body portion F, but these are essential to the present invention. It is not a requirement of and can be omitted. In this embodiment, the pipe clamp 10 is rotatably attached to the clamp attachment seat 8a of the movable body 8, but it may be non-rotatably fixed to the clamp attachment seat 8a at a predetermined angular position.

[0015]

[Operation and effect of the device]

 According to the clamp device of the present invention, when the pipe is vertically fixed to the plate portion, the movable table is held in a position such that its clamp mounting seat is parallel to the bottom of the U-shaped clamp body. The fixture is fixed to the U-shaped clamp body by inserting the fixture through the fixing hole on the U-shaped clamp body side and the fixing hole on the movable table side, and then fixing the movable base to the U-shaped clamp body. The pipe clamp becomes a state in which the pipe can be vertically fixed by fitting it to the body part and tightening the clamp screw to bite the plate part in the U-shaped clamp. When the pipe is held by the pipe clamp fixed in this way, the load applied from the pipe to the movable table can be supported by both the support shaft that pivotally mounts the movable table and the fixture. It is possible to reduce the load on the support shaft and increase the support strength of the pipe clamp connecting portion.

When the pipe P is fixed in parallel to the plate portion F, the movable table is rotated 90 degrees so that the clamp mounting seat is parallel to the leg portion of the U-shaped clamp body. While holding the position, replace the fixing tool to fix the movable table to the U-shaped clamp body, fit the U-shaped clamp body to the plate part, and tighten the clamp screw to bite the pipe clamp. Is vertically connected to the U-shaped clamp and can fix the pipe horizontally. Also in this case, similarly, the load from the pipe can be shared by the support shaft and the fixture.

As described above, according to the clamp device of the present invention, the supporting strength can be greatly improved as compared with the conventional clamp device, the structure is simple and the manufacturing is very easy, and the cost can be reduced. Can be planned.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a clamp device according to the present invention, showing a case where a pipe is fixed vertically to a plate part.

FIG. 2 is a side view similar to FIG. 1, showing a case where a pipe is horizontally fixed to a plate portion.

FIG. 3 is an exploded perspective view of the above clamp device.

[Explanation of symbols]

 1 C-shaped clamp 2 Leg part 3 Leg part 4 Bottom part 5 C-shaped clamp body 5a Corner part of C-shaped clamp body 6 Clamp screw 8 Movable table 8a Clamp mounting seat 9 Spindle 10 Pipe clamp 11 Fixing hole 12 Fixing hole 13 Fixing Hole 14 Fixing Tool F Plate Body P Pipe

Claims (1)

[Scope of utility model registration request] 1. A U-shaped clamp in which a clamping screw is threadedly inserted into one of both opposing leg portions of a U-shaped clamp body, and a leg portion of the U-shaped clamp body opposite to the clamping screw. A movable base pivotally supported by a support shaft parallel to the ridgeline direction of the corner at a corner portion between the bottom portion connecting both legs and the vicinity thereof, and a clamp mounting seat of the movable base. A pipe clamp, and the U-shaped clamp body and the movable base are fixed to each other when the clamp mounting seat is in a direction substantially parallel to the leg portion on the side facing the clamp screw. A hole and a fixing hole that matches each other when the movable base rotates 90 degrees and the clamp mounting seat is in a direction substantially parallel to the bottom portion are provided, and the fixing hole can be selectively inserted and fixed in these fixing holes. Solid A clamp device for fixing the movable table by a fixed tool.