JP3715951B2 - Extension support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an extension support device, and more particularly to an extension support device that is attached to, for example, an anchor screw rod attached to a ceiling of a building and supports cables and pipes arranged in the space behind the ceiling.
[0002]
[Prior art]
Conventionally, for example, in a reinforced concrete structure, a ceiling decorative panel, that is, a ceiling plate is attached at a distance from the ceiling surface of the concrete frame, thereby forming a space behind the ceiling between the ceiling surface and the ceiling plate. Has been. In the space behind the ceiling, electrical and signal cables, or piping systems such as water supply / drainage pipes and air conditioner ducts are installed.
[0003]
In general, cables and piping systems arranged in the space behind the ceiling are suspended and supported from the ceiling surface of the concrete frame. There are various structures as conventional means for hanging and supporting cables and piping systems in the ceiling space. Typically, the ceiling surface of a concrete frame is drilled at a predetermined interval, and these holes are drilled. In general, the anchor rod is embedded with one end portion embedded therein, and each anchor rod is mounted with a holding metal fitting having a shape or structure corresponding to a cable or a piping system.
[0004]
Thus, when renovating the entire building or a part of the room where cables and piping systems are installed in the ceiling space, remove these cables and piping systems from the suspension support means that supported them, It may be necessary to temporarily place it in a different position. In such a case, conventionally, the same suspension support means that is installed when a building is newly constructed at a temporary location is attached to the ceiling of the housing so that cables and piping systems are temporarily retracted to another location. It was.
[0005]
[Problems to be solved by the invention]
However, the conventional suspension support means for supporting cables and piping systems placed in the ceiling space is extremely complex and robust, and it is very troublesome to install the concrete frame on the ceiling surface. It takes time and effort. Therefore, especially when the cable or piping system placed in the space behind the ceiling is temporarily installed at another position by renovation etc., the suspension support means that can be installed very easily and has no problem in support strength Development of was desired.
[0006]
An object of the present invention is to solve such a conventional problem, and has a simple structure and a support as a means for supporting an extension such as a cable and a piping system in a ceiling space in a building. An object of the present invention is to provide an extension support device that is very easy to attach to a rod.
[0007]
[Means for Solving the Problems]
The present invention relates to an extension support apparatus, and is configured as follows to solve the technical problems described above. That is, the present invention includes a mounting bracket that includes a receiving portion that is attachable to and detachable from a support rod that extends in the up-down direction, and a locking portion that is spaced from the receiving portion in a direction along the support rod. A holding member attached to the mounting bracket and extending in a direction away from the support rod to support the extension, and the receiving portion includes a first contact portion that contacts the peripheral surface of the support rod; Is provided with a second contact portion that contacts the peripheral surface of the support rod from a direction opposite to the contact direction of the first contact portion with respect to the support rod, and when the extension is supported by the support member, The pivoting force acts on the mounting bracket with the second contact part of the locking part contacting the peripheral surface of the support bar as a fulcrum, and the pressure contact force on the support bar by the first contact part of the receiving part and the second contact of the locking part At the same time from the direction where the pressing force against the support rod by the part conflicts There extended object supporting device holds the support rod, the locking portion of the mounting bracket is configured to secure the rod to the plate-like body, its tip to form an end face at one end of the rod into the inclined surface The portion is a second contact portion, and the other end of the rod is extended from the plate-like body to form a supporting member .
[0008]
According to such an extension support device of the present invention, for example, an anchor screw rod attached by embedding one end in the ceiling surface of a concrete frame can be used as a support rod regardless of existing or new construction. The extension support device can be easily held by the support rod by simply fitting the receiving portion of the mounting bracket to the support rod with one touch and applying the first contact portion and the second contact portion to the peripheral surface of the support rod.
[0009]
The extension support device of the present invention has the above-described features, but also has the following features. That is, in the extension support device of the present invention, the locking portion is provided on the lower side along the support rod with respect to the receiving portion, and further extends downward along the support rod from the locking portion. An auxiliary locking portion having a third contact portion that contacts the peripheral surface of the support rod from the same direction as the second contact portion of the stop portion is provided on the mounting bracket. When such an auxiliary locking portion is provided, when a heavy extension is placed on the support member and supported, the holding force of the extension support device with respect to the support rod is increased, and the extension support device in the downward direction along the support rod is increased. Can prevent sliding down.
[0010]
In addition to the above-described features, the extension support device of the present invention further includes the following features. That is, in the extension support device of the present invention, the receiving portion forms a substantially U-shaped groove portion surrounding the support rod, and the bottom surface of this groove portion is the first contact portion that contacts the peripheral surface of the support rod. It is characterized by.
[0011]
Furthermore, in the extended object support device of the present invention, a gap is formed as a support rod arrangement port between the lower end of the receiving portion and the second contact portion of the locking portion, and a mounting bracket is provided at a position in the axial direction of the support rod. When mounting, relatively place the support rod in the middle in the axial direction in the gap, turn the mounting bracket around the second contact part as a fulcrum, and put the support bar relatively into the groove part of the receiving part from the open side It is characterized in that it is installed.
[0012]
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the extended object support device of the present invention will be described in more detail with respect to the embodiment shown in the drawings. 1 to 3 show an extension support device 10 according to a first embodiment of the present invention. The extension support device 10 is used by being mounted on a support rod SR extending in the vertical direction.
[0014]
The extension support device 10 includes a mounting bracket 11. The mounting bracket 11 includes a metal substrate 12 having a substantially right triangle shape, a receiving portion 13 provided on the surface of one side excluding the oblique side of the three sides of the substrate 12, and a surface on the other side. And a locking portion 14 provided on the top. The receiving portion 13 is formed by bending a frame forming piece 13 a integrally projecting from one side of a substantially right triangular substrate 12 into an L shape on the surface side of the substrate 12. Accordingly, the receiving portion 13 includes a U-shaped groove portion 13b formed by jointly forming a frame forming piece 13a bent in an L shape and the surface of the substrate 12.
[0015]
The width of the groove 13b in the receiving portion 13 is substantially equal to the diameter of the support bar SR so that the support bar SR can relatively enter and exit from the open side along the surface of the substrate 12. Therefore, when the mounting bracket 11 is mounted on the support bar SR so that the receiving part 13 of the mounting bracket 11 is relatively inserted from the open side into the groove 13b so as to embrace the support bar SR, both side surfaces of the groove 13b and The bottom surface makes line contact with the peripheral surface of the support rod SR. Among these, the center part of the bottom face in the groove part 13b in line contact with the peripheral surface of the support bar SR is the first contact part 13c.
[0016]
The frame forming piece 13a and the substrate 12 that form both side surfaces of the U-shaped groove 13b are provided with a cut-and-raised portion 13d in which a portion thereof is cut and raised in a triangular shape in the groove 13b and slightly protruded. Yes. Thus, when the receiving portion 13 of the mounting bracket 11 is attached to the support rod SR, the cut-and-raised portion of each cut-and-raised portion 13d is formed on the peripheral surface of the support rod SR that relatively enters the receiving portion 13 from the open side of the groove portion 13b. Presses and gives resistance to the passage
[0017]
Therefore, the receiving portion 13 cannot be easily attached to and detached from the support rod SR without any resistance, and a predetermined force is required for relative removal of the support rod SR into the groove portion 13b. The receiving portion 13 of the bracket 11 is not easily detached from the support rod SR. The means for preventing the support rod SR from easily coming off from the receiving portion 13 is not limited to such a triangular cut-and-raised portion, and is partially (dotted) from the outer surface of the frame forming piece 13a. You may make it extrude to form a hemispherical protrusion on the inner wall surface.
[0018]
The locking portion 14 provided on the other side of the substantially right triangular substrate 12 constituting the mounting bracket 11 is provided at a position spaced downward along the support bar SR passing through the receiving portion 13. Yes. The locking portion 14 includes a shelf portion 15 that is formed by bending a shelf forming piece 15 a integrally protruding from the other side of the substrate 12 at a substantially right angle with respect to the surface of the substrate 12.
[0019]
A metal rod 16 is placed on the shelf 15 along the surface of the substrate 12 and fixed by welding. As a result, one end of the rod body 16 is opposed to the support rod SR passing through the groove 13b of the receiving portion 13, the opposite end is the inclined end surface 16a, and the tip end of the inclined end surface 16a is on the circumferential surface of the support rod SR. I'm colliding. The tip of the inclined end surface 16a at one end of the rod body 16 constitutes the second contact portion 16b.
[0020]
The reason why one end of the bar 16 facing the support bar SR is the inclined end surface 16a is that the extension support device 10, that is, the receiving portion 13 of the mounting bracket 11 is hooked on a portion in the axial direction of the support bar SR. This is because the support rod arrangement opening 19 for mounting is formed. Specifically, the lower end edge 13e of the frame forming piece 13a forming one side surface of the groove portion 13b of the receiving portion 13 is an inclined edge portion substantially parallel to the inclined end surface 16a of the rod body 16, A gap is formed as a support bar arrangement opening 19.
[0021]
More specifically, the distance between the inclined edge 13e at the lower end of the frame forming piece 13a and the plane including the inclined end surface 16a of the rod 16 is relatively within the groove 13b of the receiving portion 13. It is formed to be slightly larger than the diameter of the support rod SR to be inserted. Similarly, the distance between the distal end portion which is the second contact portion 16b on the inclined end surface 16a of the rod body 16 and the lower end edge of the bottom surface 13c constituting the groove portion 13a of the receiving portion 13, that is, the distance, is similarly supported by the support rod. It is formed slightly larger than the diameter of SR.
[0022]
As a result, when the extension support device 10 is attached to a part of the support rod SR in the axial direction, the groove portion 13b of the receiving portion 13 and the rod body 16 of the locking portion 14 are respectively shown in FIG. The mounting bracket 11 is tilted so as to be positioned in a reverse letter C shape, and the support bar SR is inserted relatively from the support bar placement port 19 so as to be close to the surface of the substrate 12 and supported directly below the receiving part 13. A part in the axial direction of the bar SR is positioned.
[0023]
From this state, the tip of the inclined end surface of the rod body 16 is brought into contact with the peripheral surface of the support rod SR so that the groove 13b of the receiving portion 13 is in the vertical direction, and this contact portion 16b is indicated by an arrow 20 in FIG. The mounting bracket 11 is turned counterclockwise so that the As a result, a portion in the axial direction of the support bar SR is relatively cut and raised from the open side into the groove portion 13b of the receiving portion 13 and press-contacted with the piece, and the peripheral surface thereof contacts the central portion of the bottom surface 13c of the groove portion 13b. Such a mounting operation to the support rod SR of the extension object support device 10 can be performed by so-called one-touch, and the reverse operation of the mounting procedure may be performed even when the extension object is removed.
[0024]
In the rod body 16 fixed on the shelf 15, the other end side opposite to the support rod SR is integrally extended to form a support member 17 that supports an extension 21 such as a signal cable or a piping system. Yes. As is clear from FIGS. 1 to 3, the specific structure of the supporting member 17 is such that a plastic cylindrical body 18 having an inner diameter somewhat larger than the outer diameter of the extending portion 17 a of the rod body 16 is freely rotatable. Is attached. An end portion of the extending portion 17a extending from the rod body 16 is bent approximately 90 degrees upward to form a fall preventing portion 17b.
[0025]
Next, after the extension support device 10 is mounted on a part of the support rod SR in the axial direction, the holding action to the support rod SR when the extension member 21 such as a cable or a piping system is placed on the support member 17 is performed. Will be described. When an extension 21 such as a cable or a piping system is placed on the support member 17, due to the weight of the extension 21, the attachment bracket 11 has a tip of an inclined end surface 16 a in the rod 16 that contacts the peripheral surface of the support rod SR. A turning force acts in the counterclockwise direction indicated by the arrow 22 in FIG. 1 with the contact portion 16b between the portion and the peripheral surface of the support rod SR as a fulcrum.
[0026]
As a result, the pressure contact force (indicated by an arrow 23a in FIG. 1) by the contact portion between the bottom surface 13c and the support rod SR in the groove portion 13b of the receiving portion 13 and the inclined end surface of the rod body 16 in the locking portion 14 The extension support device 10 is strongly held by the support rod SR by simultaneously acting in the direction in which the pressure contact force (indicated by the arrow 23b in FIG. 1) against the support rod SR by the tip portion opposes. That is, the mounting bracket 11 is attached to the support bar SR so as to produce a self-holding action. As a result, the heavier the extension 21 placed on the support member 17, the greater the self-holding action. is there.
[0027]
As described above, the extension support device 10 can be easily attached to and detached from the support rod SR suspended from the ceiling surface of the concrete frame. Therefore, when the entire building or a part of the room is renovated, the space behind the ceiling is provided. The extension 21 such as a cable or a piping system arranged on the existing anchor rod or a newly installed anchor rod as needed can be temporarily installed by attaching the extension support device 10 with one touch. It is very easy.
[0028]
In this extension support device 10, since the second contact portion 16b of the locking portion 14 with respect to the support rod SR is constituted by the tip of the inclined end surface 16a of the rod body 16, the extension support device 10 is mounted. If a screw rod is used as the supporting rod SR shown in FIG. 1, the tip end portion of the inclined end surface 16a enters the screw groove, and the locking is more reliable, and the downward direction along the screw rod is reduced. The extension support apparatus 10 is effectively prevented from slipping down, and the holding force can be further increased.
[0029]
FIG. 5 shows an extension support device 30 according to a second embodiment of the present invention. The difference between the extension support device 30 of the second embodiment and the extension support device 10 of the first embodiment is that the mounting bracket 11 extends downward from the lower end of the base plate 12 along the support rod SR. The auxiliary latching part 32 which has the 3rd contact part 31 which contacts the surrounding surface of the support bar SR from the same direction as the 2nd contact part 16b of the stop part 14 is provided.
[0030]
That is, the auxiliary locking portion 32 is a frame extending along the rod body 16 from the side portion on the lower end side of the plate-like body 32a extending downward from the lower end of the substrate 12 of the mounting bracket 11 along the support rod SR. The formation piece 32b is bent into an L shape to form a groove 32c. Even in such an extension support device 30, the mounting procedure to the support rod SR is the same as that of the extension support device 10 according to the first embodiment, and the support rod SR is arranged close to the surface of the substrate 12. The portion of the support rod SR in the axial direction is positioned directly below the receiving portion 13 by being relatively inserted from the support rod arrangement opening 19.
[0031]
From this state, the tip of the inclined end surface of the rod body 16 is brought into contact with the peripheral surface of the support rod SR so that the groove 13b of the receiving portion 13 is in the vertical direction, and this contact portion 16b is indicated by an arrow 20 in FIG. The mounting bracket 11 is turned counterclockwise so that the As a result, the portion of the support bar SR above the second contact portion 16b is relatively cut and raised from the open side into the groove portion 13b of the receiving portion 13, and the peripheral surface thereof is in the center of the bottom surface 13c of the groove portion 13b. Line contact with the part. Moreover, the site | part below the 2nd contact part 16b in the support rod SR enters into the groove part 32c of the auxiliary | assistant latching | locking part 32 from an open | release side relatively, and the peripheral surface makes line contact with the bottom center part of the groove part 32c. The contact portion between the bottom center portion and the support rod SR is the third contact portion 31.
[0032]
When such an auxiliary locking portion 32 is provided, when the extension member 21 such as a heavy cable or piping system is placed on the support member 17 and supported, the holding force of the extension support device 30 with respect to the support bar SR is further increased, and the support is supported. It is possible to prevent the extension support device 30 from sliding down along the bar SR.
[0033]
In the extension support apparatus according to the first and second embodiments described above, use is made when temporarily extending an extension such as a cable or a piping system installed in a ceiling space when renovating a building. Although an example has been described, the present invention is not limited to such a use example, and it goes without saying that it can be used as a means for supporting an extension such as a cable or a piping system when a new building is constructed.
[0034]
【The invention's effect】
According to the extension support device of the present invention, for example, since it can be easily attached to and removed from a support rod attached to the concrete casing ceiling surface of a building, it is possible to extend cables and piping systems in the space behind the ceiling of the building. Objects can be supported quickly. In addition, since the rod body is fixed to the plate-like body, when the extension member such as a heavy cable or piping system is placed on the support member and supported, the holding force of the extension object support device with respect to the support rod is further increased, and the support member is supported. It is possible to prevent the extension support device from sliding down along the rod.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which an extension support device according to a first embodiment of the present invention is mounted on a support rod.
FIG. 2 is a front view showing a state in which the extension support device shown in FIG. 1 is detached from the support rod.
FIG. 3 is a plan view showing the extension support device shown in FIG. 2;
FIG. 4 is a perspective view showing a state when the extension support device shown in FIG. 2 is attached to a support bar.
FIG. 5 is a perspective view showing an extension object support device according to a second embodiment of the present invention mounted on a support bar.
FIG. 6 is a front view showing the extension support device shown in FIG. 5 in a state where it is removed from the support rod.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Extension object support apparatus which concerns on 1st Embodiment 11 Mounting bracket 12 Board | substrate 13 Receiving part 13a Frame formation piece 13b Groove part 13c Bottom face (1st contact part)
13d Lower end edge 14 Locking portion 15 Shelf portion 16 Rod body 16a Inclined end surface 16b End portion of the inclined end surface (second contact portion)
DESCRIPTION OF SYMBOLS 17 Supporting member 17a Extension part 17b Fall prevention part 18 Cylindrical body 19 Support rod arrangement | positioning opening | mouth 20 Arrow which shows the rotation direction at the time of mounting | wearing 21 Extension 30 The extension support apparatus 31 which concerns on 2nd Embodiment 31 3rd contact part 32 Auxiliary locking portion 32a Plate-like body 32b Frame forming piece 31c Groove portion SR Support rod

Claims (4)

A mounting bracket having a receiving portion detachably attached to a support rod extending in the vertical direction, and a locking portion provided at an interval in the direction along the support rod with respect to the receiving portion, and attached to the mounting bracket And a support member that extends in a direction away from the support rod and supports the extension,
The receiving portion includes a first contact portion that comes into contact with a peripheral surface of the support rod, and the locking portion has a periphery of the support rod from a direction opposite to a contact direction of the first contact portion with respect to the support rod. A second contact portion that contacts the surface;
When the extension member is supported by the support member, a turning force acts on the mounting bracket with the second contact portion of the locking portion contacting the peripheral surface of the support bar as a fulcrum due to the load of the extension member. The extension support is performed by simultaneously working in a direction in which the pressing force of the receiving portion against the support rod by the first contact portion and the pressing force of the locking portion against the support rod from the second contact portion are opposite to each other. Holding the device on the support bar,
The locking portion of the mounting bracket is configured by fixing a rod body to a plate-like body, an end surface of one end portion of the rod body is formed as an inclined surface, and the tip portion is used as the second contact portion, An extension object support device , wherein the other end portion of the bar is extended from the plate-like body to form the support member .   The locking portion is provided on a lower side along the support rod with respect to the receiving portion, and further extends downward along the support rod from the locking portion, and the locking portion includes the first portion of the locking portion. The extension support apparatus according to claim 1, wherein the mounting bracket includes an auxiliary locking portion having a third contact portion that contacts the peripheral surface of the support rod from the same direction as the two contact portions.   The said receiving part forms the substantially U-shaped groove part surrounding the said support rod, The bottom face of this groove part is made into the said 1st contact part which contacts the surrounding surface of the said support bar. Extension support device.   A gap in which a support rod can be arranged between the lower end of the receiving portion and the second contact portion of the locking portion is formed as a support rod arrangement port, and the mounting bracket is provided at a position in the axial direction of the support rod. When mounting, the axially intermediate portion of the support bar is relatively disposed in the gap, the mounting bracket is turned around the second contact portion as a fulcrum, and the groove portion of the receiving portion is inserted into the groove portion from the open side. The extension support device according to claim 3, wherein the support rod is relatively inserted and mounted.

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