JPH0217206Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a method that allows girder materials for supporting articles to be easily fixed without tools to any position above or below a hanging bolt suspended vertically from the ceiling. Regarding the clamper.

[Conventional technology]

When suspending heavy objects from the ceiling or installing heavy objects such as equipment piping or ducts within the ceiling, use the ceiling structural materials such as channel materials for fixing ceiling panels and field channels directly. I can't. Firstly, these have insufficient strength;
Secondly, the hanging position and the vertical height position cannot be set arbitrarily.

For this reason, in the past, dedicated hanging bolts were provided separately from those for ceiling panels, and this and high-strength girders formed a support structure from which heavy objects were suspended.

However, in this conventional configuration, there was a problem in how to support and fix the girder to the vertical hanging bolts. In the case of supporting and fixing using welding or tools, construction costs such as material costs and labor costs are high. Particularly, when additional construction is performed on an existing ceiling, the work is extremely difficult and the safety of workers cannot be sufficiently ensured.

On the other hand, when connecting temporary pipes, two orthogonal
A clamper that removably fixes a real pipe at these intersections is disclosed in Japanese Utility Model Application Publication No. 50-50214. There, as shown in FIGS. 5 and 6, the clamper body 20 is connected to a pair of opposing walls 2.
0R, 20L and a proximal end wall 20s that connects them, and has a U-shaped cross section.
A wedge body 21 is attached to the inner surface of 0s so as to be movable up and down, and latching holes 2 are provided at the tips of both opposing walls 20R and 20L.
4 and 24. In this way, for example, the clamper main body 20 is guided from the lateral and outer side to the vertical first pipe 22, so that the first pipe 22 is inserted between the opposing walls 20R and 20L. Next, the second pipe 27 is horizontally fitted into both of the latching holes 24, 24 to be received and supported, and the first pipe 22 and the second pipe 27 are brought into contact with each other orthogonally. Finally, the wedge body 21 is driven downward to fix the intersection of both pipes 22 and 27.

[The problem that the idea aims to solve]

However, when the above-mentioned pipe clamper is used to fix the girder 7 to the suspension bolt 2 on the ceiling as shown in Fig. 2, the wedge body 21 must be driven in with a tool in the attic space. However, the work remains difficult and dangerous. When driving the wedge body 21, the clamper body may slide down below the hanging bolt 2, etc.
It is also difficult to adjust the fixing position of the beam member 7 relative to the frame member 7.
Even when changing the mounting position of the girder 7, it is difficult to remove the wedge body 21 and requires a special tool.

Therefore, the object of the present invention is to provide a clamper that can safely and easily fix girders to hanging bolts vertically suspended from the ceiling without using any tools, even in a limited ceiling space.

Another object of the present invention is to provide a clamper that can reliably fix girders at arbitrary positions above and below the hanging bolts, and can also easily release the fixings.

[Means to solve the problem]

In other words, the present invention has a suspension bolt 2 that is vertically hung from the ceiling as shown in Figures 1 to 4.
In a clamper for fixing a girder 7 supporting an article W at any upper or lower position of the clamper body 10, the clamper body 10 has a U-shaped cross section and is composed of a pair of opposing walls 10R, 10L and a base end wall 10s connecting them. The clamper main body 10 has both opposing walls 10R,
The roller-shaped wedge body 11 has an abutment groove 11a formed on its outer periphery that almost coincides with the circumferential surface of the suspension bolt 2.
The wedge body 11 is disposed between the opposite walls 10R, 10L close to the proximal wall 10s of the clamper main body 10, and the opposite walls 10R, 10L of the clamper main body 10
, a long hole-shaped guide groove 15, 1 extending in the vertical direction is provided.
5, and an operating shaft 13 inserted into the center of the wedge body 11.
Both ends of the wedge body 11 are guided and supported by the guide grooves 15, 15, and the wedge body 11 is connected to the clamper body 10.
The clamper body 10 is rotatable in contact with the proximal wall 10s and is movable in the vertical direction along the guide grooves 15, 15. Latching holes 14, 14 are provided in the opposing walls 10R, 10L of the clamper body 10, respectively. The girder material 7 is fitted into these latching holes 14, 14 to be received and supported, and the girder material 7 is received and supported by the clamper body 10, and the girder material 7 is applied to the hanging bolt 2. In this state, the wedge body 11 is located between the base end wall 10s of the clamper main body 10 and the hanging bolt 2, and the base end wall 10s is located at the top between the hanging bolt 2 and the base end wall 10s. The clamper body 10 is provided with a spring means 12 for moving and biasing the wedge body 11 upward. Both ends of the operating shaft 13 of the wedge body 11 are opposite to the clamper body 10. It is required to protrude to the outside of the walls 10R and 10L.

[Effect]

When using the clamper C of the present invention, the clamper body 10 is guided from the lateral and outer side of the existing hanging bolt 2 from the opening side, and the bolt 2 is
into the inserted state.

Next, the wedge body 11 is lowered against the spring means 12, and the spacing between the wedge body 11 and the latching hole 14 is increased, and the girder member 7 is placed in both the latching holes 14, 14 in a state that straddles them. Fit it in, accept it, and support it. When the wedge body 11 is lowered, both ends of the operating shaft 13 supporting the wedge body 11 are connected to the opposing wall 10 through the guide grooves 15, 15.
Since it protrudes to the outside of R and 10L, the lowering operation is performed by hooking the fingertips on both ends of this operating shaft 13.

When the user releases the operating shaft 13 from this state, the wedge body 11 is automatically returned upward by the spring means 12 while rotating in contact with the inner surface of the base end wall 10s of the clamper body 10. And the base end wall 10
Since the space between s and the hanging bolt 2 is tapered upward, the wedge body 11 bites into the space between them, and the hanging bolt 2 and the girder 7 come into contact with each other.
Finally, the wedge body 11 and the girder 7 are connected to the hanging bolt 2.
The girder material 7 is fixed to the hanging bolt 2 by pinching.

The reason why the wedge body 11 is made of a roller with grooves 11a is that it imparts rotational performance so that the wedge body 11 can smoothly bite between the base end wall 10s and the hanging bolt 2 to effectively exert the wedge action. This is to make it possible to withdraw from the wedged state without resistance. Further, the abutting groove 11a on the outer periphery of the wedge body 11 guides the wedge body 11 to properly engage with the outer circumferential surface of the hanging bolt 2, and also functions to prevent the clamper body 10 from steadying against the bolt 2.

When the article W is suspended on the girder 7, the wedge body 11
The load applied to the base end wall 10s is received by the base end wall 10s, which has sufficient strength and has both ends connected to the opposing walls 10R and 10L.

[Effect of idea]

According to the present invention, the clamper main body 10 is guided from the lateral and outer sides at arbitrary positions above and below the hanging bolt 2, and the wedge body 11 is pulled down with both ends of the operating shaft 13 in hand, and both opposing walls 10R, 10L
After fitting the girder 7 through the latching holes 14, 14, the user releases the operating shaft 13 and moves the wedge body 11 back upwards using the spring means 12.
The girder 7 can be fixed at any position above or below the existing hanging bolt 2. In this case, the operation of moving the wedge body 11 is as simple as placing your hands on both ends of the operating shaft 13 and pulling down the wedge body 11, which is extremely simple and convenient, does not require any tools, and can be performed safely even in a narrow attic space. This can be expected to improve work efficiency. At the same time, this means that the vertical positional relationship of the clamper body 10 with respect to the hanging bolt 2 can be adjusted and removed easily.

Since the wedge body 11 is formed into a roller shape having an abutment groove 11a on the outer periphery and is rotatably supported, the wedge body 11 can bite into between the hanging bolt 2 and the base end wall 10s of the clamper body 10 due to the biasing force of the spring means 12, and Removal from this wedged state can also be performed smoothly with little resistance. At this time, the abutting groove 11a on the outer periphery of the wedge body 11 fits into the circular outer circumferential surface of the hanging bolt 2, and functions to correctly guide the wedge body 11 to the biting position, and also allows the clamper body 11 to move against the hanging bolt 2. It also serves as a steady rest and ensures reliable fixation of the girder 7.

When an article is suspended on the support member 7, the load applied to the clamper body 10 is received by the proximal wall 10s of the clamper body 10 via the wedge body 11. This base end wall 10s is both opposing walls 10R, 10L.
It has sufficient strength. Therefore, for example, unlike a type in which a shearing load is directly applied to the operating shaft 13 of the wedge body 11, even heavy objects can be safely and reliably suspended from the beam member 7.

〔Example〕

1 to 4 show embodiments of the clamper according to the present invention.

Figure 2 shows the case of a lightweight ceiling, where many vertical hanging bolts 2 are installed in the slab 1.
It consists of a field edge channel 4 fixed to the lower end of this bolt 2 via an adjustment hanger 3, a panel channel 5, a ceiling panel 6 fixed to the channel 5, etc. A large number of hanging bolts 2 are arranged at regular intervals in all directions. A large number of edge channels 4 and panel channels 5 are also arranged in a base grid pattern.

When supporting an article such as a display board W by hanging it from the ceiling, a pair of existing hanging bolts 2 is used as is, and a beam member 7 is fixed between them in a bridging manner. Then, a hanging device 8 such as a wire or a metal rod whose lower end is fixed to the display board W is supported on the beam member 7. The present invention is characterized by a clamper C for fixing the girder 7 to the hanging bolt 2.

In FIG. 4, the clamper C of the present invention has a pair of opposing walls 10R and 10L, and a proximal wall 10 that connects the opposing walls 10R and 10L.
A clamper main body 10 bent and formed into a U-shaped cross section consisting of a wedge body 10, a wedge body 11 disposed between both opposing walls 10R and 10L close to the base end wall 10s, and a wedge body 11 held by an upper wedge stop. It consists of a spring means 12 that urges the wedge body 11 to move in the direction, and an operating shaft 13 that supports the wedge body 11.

The opposing walls 10R, 10L of the clamper main body 10 are provided with latching holes 14, 14 for supporting the beam members 7, and the latching holes 14, 14 are provided on the proximal wall 10s side of the latching holes 14, 14. Long hole-shaped guide grooves 15, 15 are provided that extend in the vertical direction parallel to the . The distance between these opposing walls 10R and 10L is set to be slightly larger than the diameter of the hanging bolt 2, as shown in FIG.

The wedge body 11 is formed in the shape of a roller having a contact groove 11a on the outer periphery that substantially coincides with the circumferential surface of the hanging bolt 2, and a spring hook groove 11b is formed in a circumferential manner in the center of the width direction of the contact groove 11a. The operating shaft 13 is press-fitted into the shaft hole at the center of the roller.

The wedge body 11 is positioned between the opposing walls 10R, 10L facing the guide grooves 15, 15, and the operating shaft 13 is inserted so that both ends loosely fit into the guide grooves 15, 15.
By press-fitting into the shaft hole of the wedge body 11, the wedge body 11 and the clamper body 10 are integrated. In this state, both ends of the operating shaft 13 protrude outward from each guide groove 15, as shown in FIG.

The spring means 12 shown in the figure is made of a tension coil spring, and by hooking one end of the spring means to the spring hook groove 11b and hooking the other end to the upper end of the base end wall 10s, the wedge body 11 is moved along the guide groove 15. and pull it upward.

The latching hole 14 is formed in an inverted concave shape that matches the cross-sectional shape of the beam member 7 made of channel material.
This locking hole 14 is formed slightly larger than the cross-sectional shape of the beam member 7. Left and right side edges 14a, 1 of the latching hole 14
4b as a reference line along a vertical line, the base end wall 10s and the guide groove 15 parallel thereto are inclined so as to approach the locking hole 14 at the top and move away from the locking hole 14 at the bottom. . Thus, as shown in FIG. 1, when the operating shaft 13 is located near the vertical center of the guide groove 15, the wedge body 11 and the locking hole
The spacing between the beam member 7 inserted therein is substantially equal to the diameter of the hanging bolt 2, and the roller outer circumferential surface of the wedge body 11 is always received by the base end wall 10s of the clamper body 10 to rotate.

The clamper C constructed as described above is fitted into the vertical hanging bolt 2 from the lateral outside so as to sandwich it between the opposing walls 10R and 10L.
The wedge body 11 is pulled down toward the lower half of the guide groove 15 against the spring means 12 by hooking the fingertips on both ends of the operating shaft 13 protruding from R and 10L. In this state, one end of the beam member 7 is fitted into the locking hole 14 to be received and supported.

In this way, when the girder 7 is pressed against the hanging bolt 2, the base wall 10s of the clamper body 10 is inclined so that the space between the base wall 10s and the bolt 2 tapers upward. , the wedge body 11 is located in this upper narrowing space. Therefore, when you release your hands from both ends of the operating shaft 13, the wedge body 11 is automatically pulled up while rotating in contact with the inner surface of the base wall 10s by the spring means 12, thereby connecting the base wall 10s and the bolt. It wedges between the two.

The other end of the girder 7 is similarly attached to the adjacent hanging bolt 2 using the clamper C. Note that the clamper C can be pushed upwards to a required height position, and the operating shaft 13 is moved by the spring means 12.
The clamper C can be moved downward by pulling it down against the
The movement can be adjusted.

Now, when the weight of the girder material 7 is applied to the clamper C,
The clamper main body 10 tries to descend along the hanging bolt 2. However, the wedge body 11 is wedged between the base end wall 10s of the clamper main body 10 and the hanging bolt 2, as shown in FIGS. 1 and 3. Then, the abutting groove 11a on the outer periphery of the wedge body 11 fits into the circumferential surface of the suspension bolt 2 and is strongly pressed. This lateral force also acts on the girder 7 via the suspension bolts 2. However, the beam member 7 is received by the side edge 14a of the locking hole 14 near the tip side, and cannot be moved away from the hanging bolt 2. Therefore, hanging bolt 2
The clamper C and the beam member 7 are clamped by the wedge body 11 and the beam member 7, and the downward movement of the clamper C and the beam member 7 is prevented by the frictional resistance of the clamping portion.

When the display board W is attached to the girder member 7, the horizontal force acting on the wedge body 11 increases as the weight increases, and the frictional resistance also increases. The wedge body 11 is the proximal wall 10s of the clamper body 10.
Since it is received and supported by , the operating axis 1 of this
No shearing load is applied to 3, making it suitable for suspending heavy objects.

When an upward force acts on the clamper C, for example, when the clamper C is pushed up due to machine vibration or an earthquake, the wedge body 11 is guided by the guide groove 15 and relatively moves downward, causing the wedge body 11 and the girder to move downward. It appears that the distance between the material 7 and the material 7 is increasing and the fixing force is being lost. However, since the wedge body 11 is always urged to move upward in the wedging direction by the spring 12, even if the wedge body 11 separates from the outer peripheral surface of the hanging bolt 2, it immediately returns to contact with the girder member again. 7 to clamp the hanging bolt 2 and prevent the clamper C and the beam member 7 from slipping.

In addition, a steel bar with a nominal diameter of 8 mm is generally used as the suspension bolt 2, but this has sufficient strength to bear the weight of a ceiling structure with a ceiling channel of 4 or less, increasing the safety factor by several times. Even if it is estimated that one hanging bolt 2 can carry a load of several hundred kilograms. Therefore, compared to the case where the girder member 7 is directly supported by other ceiling structures such as the edge channel 4 or the panel channel 5, the maximum load is larger and heavy objects can be supported reliably and safely. .

In this way, the clamper C of the present invention can fix the girder 7 to the hanging bolt 2 by using the known hanging bolt 2 and performing a very simple installation operation, so it is particularly suitable for additional construction on an existing ceiling. Therefore, it is advantageous when forming a heavy object support structure. Of course, it can also be effectively used when constructing a new building, for example, when fixing the girder 7 to the specially installed hanging bolts 2 for installing equipment piping or air conditioning ducts.

[Another embodiment example]

The hooking hole 14 can be made circular depending on the shape of the beam 7, and does not necessarily have to have the same cross-sectional shape as the beam 7. For example, if the beam 7 is a polygon with four or more sides. In some cases, the cross section may be V-block shaped. The point is that when a lateral force acts on the beam member 7, a wall or edge that receives the force should be provided on the opposing walls 10R, 10L.

The spring means 12 can also be replaced with a torsion coil spring, a compression coil spring, a plate spring, etc., and is not limited to the above embodiment.

In each of the above embodiments, the simplest case in which the heavy object support structure consists of only the girders 7 and the hanging bolts 2 has been described, but it is fully assumed that a more complicated support structure can be constructed using the girders 7 as a base. Therefore, the girder material 7
There are no limitations whatsoever regarding support structures other than those listed above.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, and FIG. 1 is a sectional view taken along line A-A in FIG.
Figure 2 is a vertical sectional view showing the ceiling structure, Figure 3 is the first
FIG. 4 is an exploded perspective view of the clamper of the present invention. 5 and 6 show a conventional example, with FIG. 5 being a longitudinal sectional view in a state of use, and FIG. 6 being a perspective view. C... Clamper, 2... Hanging bolt, 7...
Girder material, 10... Clamper body, 10R, 10L
... Opposing wall of the clamper main body, 10s ... Proximal wall of the clamper main body, 11 ... Wedge body, 11a ...
...Wedge body contact groove, 12... Spring means, 14...
...Latching hole, 15... Guide groove, W... Article.

Claims (1)

[Scope of Claim for Utility Model Registration] A clamper for fixing a girder 7 supporting an article W at any upper or lower position of a hanging bolt 2 vertically suspended from the ceiling, a pair of opposing walls 10R, 10L; The clamper main body 10 has a U-shaped cross section and includes a base end wall 10s that connects the clamper main body 10, and the clamper main body 10 has both opposing walls 10R,
The roller-shaped wedge body 11 has an abutment groove 11a formed on its outer periphery that almost coincides with the circumferential surface of the suspension bolt 2.
The wedge body 11 is disposed between the opposite walls 10R, 10L close to the proximal wall 10s of the clamper main body 10, and the opposite walls 10R, 10L of the clamper main body 10
, a long hole-shaped guide groove 15, 1 extending in the vertical direction is provided.
5, and an operating shaft 13 inserted into the center of the wedge body 11.
Both ends of the wedge body 11 are guided and supported by the guide grooves 15, 15, and the wedge body 11 is connected to the clamper body 10.
The clamper body 10 is rotatable in contact with the proximal wall 10s and is movable in the vertical direction along the guide grooves 15, 15. Latching holes 14, 14 are provided in the opposing walls 10R, 10L of the clamper body 10, respectively. The girder material 7 is fitted into these latching holes 14, 14 to be received and supported, and the girder material 7 is received and supported by the clamper body 10, and the girder material 7 is applied to the hanging bolt 2. In this state, the wedge body 11 is located between the base end wall 10s of the clamper main body 10 and the hanging bolt 2, and the base end wall 10s is located at the top between the hanging bolt 2 and the base end wall 10s. The clamper body 10 is provided with a spring means 12 for moving and biasing the wedge body 11 upward. Both ends of the operating shaft 13 of the wedge body 11 are opposite to the clamper body 10. The clamper is required to protrude to the outside of the walls 10R and 10L.