JP5663072B1 - Pipe support stand - Google Patents

Abstract

[PROBLEMS] To improve the possibility that a pipe support in a state where no load is applied from above easily tilts, and that a leg or tripod protrudes upward from the floor surface and hinders passage of workers. Is an issue. A pipe support stand 1 has a pin 2C inserted into a fixing hole 13a formed in a base plate 13A and a reinforcing rib 2B extending in an axial direction at one end in order to make the pipe support 11 self-supporting. The formed leg portion 2 is attached to the fixing hole 13a of the base plate 13A. [Selection] Figure 1

Description

  The present invention has no portion protruding upward from the floor surface, can be firmly attached to the pipe support, and can prevent the pipe support from tilting and sliding, and can stably stand on its own. It relates to a pipe support stand that can.

  When constructing a structure using concrete, the formwork is arranged so as to have the shape of the structure. In order to construct an upper beam, for example, a ceiling surface (floor surface when viewed from the upper floor), this formwork is provided with a plurality of pipe supports on the floor surface at that position, and the pipe support is used to form the formwork. The upper part is supported.

  The pipe support has dimensions and strengths defined in the Japanese Industrial Standard (JIS A8651). The length of the pipe support can be adjusted by inserting and removing the inner tube into the outer tube. An adjustment screw (male screw) is formed at a site where the tube is inserted and removed, and an adjustment screw (screw) is screwed into the adjustment screw. The insertion tube and the lumbar tube are respectively provided with pin holes in the diameter-opposing surface in the axial direction, and a support pin is inserted into the pin hole and fixed to an adjusted length. At the end of the insertion tube and the lumbar tube in the direction opposite to the insertion / removal direction, a pedestal is provided in the insertion tube and a base plate is provided in the lumbar tube.

  For example, Patent Documents 1 to 4 have been proposed in order to make the pipe support stable and independent. In Patent Documents 1 and 4, a support part that is inserted into a central cylindrical hole part in a base plate provided at an end opposite to the insertion / removal part of the lumbar canal, and a surface of the base plate continuously from the support part, An anti-skid fitting having a configuration including a stacking unit and a plurality of standing claws formed on the surface of the mounting unit facing the floor surface is shown.

  Patent Document 2 discloses, for example, a mounting portion that contacts the side surface of a pipe support and a lock that fixes the mounting portion and the pipe support in order to attach the pipe support to an A-shaped leg portion (so-called A-type barricade). A support is provided that includes a grip body provided with a member and is configured to engage the grip body with a leg portion.

  Patent Document 3 is composed of a ring body that holds and holds a pipe support, and three legs that are attached to the outer surface of the ring body at equal intervals, and the ring body is connected to the pivot 4 so as to be openable and closable. Fastening means for fastening and releasing the free ends are provided at the opposing free ends of the ring semi-finished bodies, and the leg portions have a predetermined angle with respect to the ring bodies at the upper ends. A stand is shown configured to be openable.

  However, Patent Documents 1 and 4 prevent the pipe support from sliding, and for example, concrete is not yet placed in a mold for constructing a ceiling surface, that is, no load is applied from above. In such a case, there is a problem that the pipe support easily tilts or slides, and even if the pipe support is temporarily placed on the floor surface, the pipe support may be easily tilted.

  Patent Document 2 is a structure in which a pipe support is attached to a stable and self-supporting leg portion having a certain height, and Patent Document 3 is a so-called tripod extending obliquely from an intermediate position in the axial direction of a lumbar tube toward the floor surface. In any case, a configuration other than the pipe support projects upward from the floor surface, which may hinder the passage of workers.

  For example, in Patent Documents 2 and 3, when a traveling worker (or a material to be transported) comes into contact with a configuration projecting upward from a floor surface other than the pipe support, the pipe support tilts, tilts, and slides.

JP 2013-32642 A JP-A-2005-105692 JP-A-9-158499 JP 7-217229 A

  The problem to be solved is that in the configurations of Patent Documents 1 and 4, there is a possibility that the pipe support in a state where no load is applied from above is easily tilted. May protrude upward from the floor surface and hinder the passage of workers, and the pipe support may tilt, tilt, or slide by contacting these legs or tripods.

In order to solve the above problems, a pipe support stand according to the present invention includes an insertion tube and a lumbar tube that are inserted into and removed from each other for length adjustment, and a pin hole formed in each of the insertion tube and the lumbar tube in the axial direction. In order to self-support a support pin inserted into the pin hole, and a pipe support comprising a pedestal and a base plate provided at ends opposite to the insertion / removal direction of the insertion tube and the waist tube, A pin inserted into a fixing hole formed in the plate and a leg portion formed at one end with a reinforcing rib extending in the axial direction are attached to the fixing hole of the base plate, and the periphery of the waist tube A wedge is inserted in a gap between the surface and the reinforcing rib of the leg portion so as to contact the peripheral surface of the waist tube and the reinforcing rib .

  Since the pipe support stand of the present invention is configured to attach a leg portion that crawls on the floor surface, the leg portion does not protrude upward and does not hinder the passage of the floor surface. In addition, when the pipe support is made self-supporting, the legs are attached to the fixing holes formed in the corners of the base plate of the pipe support. There is an advantage of being able to be independent.

It is a figure which shows the condition which attached the pipe support stand of this invention to the pipe support. It is a leg part in the pipe support stand of this invention, (a) is a top view, (b) is a front view, (c) is a left side view, (d) is a right side view. It is a wedge in the pipe support stand of this invention, (a) is a top view, (b) is a front view. (A)-(c) is a figure which shows the state which attaches the pipe support stand of this invention to a pipe support.

  In the present invention, there is a possibility that the pipe support in a state where no load is applied from above may be easily tilted at the time of temporary installation, and if the leg portion protrudes upward from the floor surface, the passage of the worker is hindered. Attach the point to the fixing hole at the corner of the platen plate, the pin inserted into the fixing hole formed at the corner of the platen, and the leg part with the reinforcing rib extending in the axial direction formed at one end That was solved.

  Further, in the above configuration, the present invention has a wedge inserted into the gap between the circumferential surface of the lumbar tube and the reinforcing rib of the leg portion so as to contact the circumferential surface of the lumbar tube and the reinforcing rib. The size of the pipe support can be accommodated, and the connection between the leg portion and the lumbar tube becomes stronger, and tilting is suppressed.

  Furthermore, according to the present invention, in the above configuration, if the cross-sectional shape of the leg is triangular or arc-shaped, for example, the carriage can easily get over the leg and prevent the operator from tripping. it can.

  Specific embodiments of the pipe support stand of the present invention will be described below with reference to the drawings. The pipe support is shown only in FIG. 1 as a whole, and in FIGS. 2 to 4, only the part to which the pipe support stand of the present invention is attached (the waist tube and the base plate part) is shown, and the other parts are not shown. doing.

  The pipe support stand 1 is attached to a pipe support 11 defined by Japanese Industrial Standards (JIS A8651) and stably stands on its own. The pipe support 11 includes an insertion tube 12 serving as an inner cylinder and a lumbar tube 13 serving as an outer cylinder. The length of the pipe support 11 can be adjusted by inserting and removing the insertion tube 12 with respect to the lumbar tube 13.

  The insertion tube 12 is provided for the lumbar tube 13, and the lumbar tube 13 is provided for the insertion tube 12. At the end opposite to the insertion / removal direction, the insertion tube 12 is provided with a receiving base 12 </ b> A, and the waist tube 13 is provided with a base plate 13 </ b> A. It has been.

  The cradle 12A and the base plate 13A have a substantially square outer shape when viewed from the axial direction, and are fixed by inserting bolts or the like for fixing them to, for example, thick ends (not shown) at the four corners. Holes 12a and 13a are respectively formed. The fixing hole 13a of the base plate 13A is used in the pipe support stand 1 which will be described in detail after the present invention.

  Furthermore, pin holes 12B and 13B are formed at predetermined pitches in the axial direction on the peripheral surfaces (diameter facing surfaces) of the insertion tube 12 and the waist tube 13, respectively. A pin 13C provided at an insertion / removal site of the insertion tube 12 of the waist tube 13 is inserted into the pin holes 12B, 13B. An adjustment male screw 13D is formed on the peripheral surface of the insertion / removal portion of the waist tube 13 with the insertion tube 12, and an adjustment screw 13E is screwed into the adjustment male screw 13D.

  The pipe support stand 1 is used to firmly connect the leg portions 2 as many as the fixing holes 13a formed in the base plate 13A of the waist tube 13 and the four leg portions 2 and the waist tube 13 in this example. And a wedge 3.

  The leg 2 includes a main body 2A having a predetermined length, a reinforcing rib 2B formed at one end of the main body 2A (in this example, the waist tube 13 side), and a side on which the reinforcing rib 2B is provided. The pin 2C is formed on the opposite surface and inserted into the fixing hole 13a, and the other end of the main body 2A (which means a direction away from the waist tube 13 in this example) has the same direction and height as the pin 2C. The leg 2D is formed. In this example, the leg portion 2 is parallel to the base plate 2 and extends linearly.

  In this example, the main body 2A has a U-shaped cross-sectional shape that is open upward. For example, the main body 2A has a hollow cylindrical shape with a triangular shape having an apex at the top, or an arc shape at the top. By being made into the semicircle shape made, the protrusion from a floor surface becomes smooth and it can prevent that a worker stumbles.

  In order to prevent the pipe support 11 from tilting, the reinforcing rib 2B protrudes upward in the axial direction so that it does not open a gap with the peripheral surface of the waist tube 13, that is, abuts, and the pipe support 1 tilts to the other side. However, depending on the size of the pipe support 11 as in this example, there may be a state where a gap with the peripheral surface of the waist tube 13 is opened. Further, the pin hole 13B and the pin 2C may be slightly tilted due to the fitting tolerance.

  Therefore, as shown in FIG. 3, when the gap between the peripheral surface of the waist tube 13 and the reinforcing rib 2B is generated depending on the type of the pipe support 11, the wedge 3 is inserted as shown in FIG. When the wedge 3 is provided, a groove 2Ba into which the slope portion 3B of the wedge 3 is inserted is formed on the upper surface of the reinforcing rib 2B. The wedge 3 will be described later.

  The pin 2C and the leg 2D have the same height, and the one end side of the main body 2A inserted into the fixing hole 13a of the base plate 13A and the main body 2A extending to the other end side are kept horizontal. Is omitted, the shape of the main body 2A, that is, the height increases from the middle toward the other end of the main body 2A so that it becomes the same height as the pin 2C, or the height increases from the middle. Different shapes may be used.

  For example, in this example, the wedge 3 is provided at the corner portion of the abutting portion 3A and the abutting portion 3A in which two adjacent surfaces are set to 90 ° so as to abut against the circumferential surface of the waist tube 13. And a slope portion 3B.

  The contact portion 3A has a certain height in the axial direction of the waist tube 13, and the inclined surface portion 3B is provided with a size corresponding to the height of the contact portion 3A, and the groove 2Ba of the reinforcing rib 2B of the leg portion 2 is provided. Inserted into. In addition, the slope portion 3B is in a state where the uppermost portion projects from the circumferential surface of the waist tube 13 toward the insertion / removal portion of the waist tube 13 with respect to the insertion tube 12 (this is the upper portion), and toward the lower portion. Accordingly, the amount of overhang is reduced, that is, it has a slope shape.

  For example, when there is a distance between the outer periphery of the waist tube 13 of the pipe support 11 and the fixing hole 13a of the base plate 13A, and the pin 2C is inserted into the fixing hole 13a, the outer periphery of the waist tube 13 and the reinforcing rib 2B If there is a gap between them, the pipe support 11 may tilt (rattle), but by inserting the wedge 3, the waist tube 13 and the leg 2 are firmly fixed and slightly tilted and loose. You can reduce the date.

  The pipe support stand 1 having the above configuration is used as shown in FIG. First, on the floor surface where the pipe support 11 is installed, the pin 2C of the leg 2 is inserted into the fixing hole 13a of the base plate 13A as shown in FIG. To temporarily stand the pipe support 11.

  Subsequently, when there is a gap between the outer periphery of the waist tube 13 and the reinforcing rib 2B, the slope portion 3B of the wedge 3 is replaced with the groove 2Ba of the leg portion 2 as shown in FIG. Insert along. Then, as shown in FIG.4 (c), the upper surface of the slope part 3B is driven down with a hammer etc., and the leg part 2 and the waist tube 13 are contact | adhered.

  Thus, after the pipe support 11 is formally self-supported by using the pipe support stand 1, the insertion tube 12 is extended, the height is adjusted, and the pin 13C is inserted into the pin holes 12B and 13B to complete the installation.

  In this way, according to the present invention, the leg portion 2 of the pipe support stand 1 does not overhang the upper space so as to crawl the floor surface. There is no.

  In addition, since the present invention can be made to stand by itself stably without causing tilting or sliding even when the pipe support stand 1 is installed, that is, in a state where no load is still applied to the formwork, The pipe support 11 can be easily installed and the formwork can be arranged as planned. Needless to say, the pipe support stand 1 of the present invention does not slide or tilt at any time from the installation of the pipe support 11 to the installation of the formwork or the concrete.

DESCRIPTION OF SYMBOLS 1 Pipe support stand 2 Leg part 2A Main body 2B Reinforcement rib 2Ba Groove 2C Pin 2D Leg 3 Wedge 3A Contact part 3B Slope part 11 Pipe support

Claims (2)

An insertion tube and a lumbar tube that are inserted into and removed from each other for length adjustment, a pin hole formed in each of the insertion tube and the lumbar tube in the axial direction, a support pin inserted into the pin hole, the insertion tube, and the In order to make the pipe support composed of a cradle and a base plate provided at the end opposite to the insertion / removal direction of the lumbar canal independently, a pin inserted into a fixing hole formed in the base plate and an axial direction A leg portion formed with an extended reinforcing rib at one end is attached to the fixing hole of the base plate, and the waist is provided in a gap between the circumferential surface of the waist tube and the reinforcing rib of the leg portion. A pipe support stand comprising a wedge inserted so as to abut on a peripheral surface of a pipe and the reinforcing rib . The pipe support stand according to claim 1, wherein a cross-sectional shape of the leg portion is a triangle or an arc shape.

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