Pipe support fixture

Abstract

To improve disadvantages of a pipe support fixture which needs to be lightweight on the whole, stably fitted to a top surface of a wall surface, and improved in fitting precision in a well-balanced state.SOLUTION: A (pipe support) fixture 1 comprises: a pipe support part 3 into which a pipe support has its lower end part inserted to be supported in a standing posture; a substrate 2 which is provided abutting on a top surface of a wall surface (handrail V) and on which an engagement part 2A engaging one side face of the wall surface is formed at one end thereof and an adjustment part 2B adjusting the interval with the engagement part 2A according to the width between the other side face and one side face of the wall surface is formed at the other end, respectively; a receiving plate 2C which is stood on the substrate 2, and receives the pipe support part 3; and a fixation part 4 which fixes the position where the pipe support part 3 is received by the receiving plate 2C.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a pipe support fixture that is well balanced in terms of overall weight reduction, stability of attachment to an upper surface with an inclined wall surface, and improvement of attachment accuracy.

Background Art

[0002] For example, a so-called balcony of a concrete structure having stacked floors above, such as an apartment or a building, is constructed by a floor surface and a handrail extending upward from this floor surface. When constructing this balcony with concrete, formwork for the floor surface and handrail of the upper floor is assembled from the floor surface of the current floor and the handrail, and concrete is placed in the formwork on the upper floor. The formwork assembled on the upper floor is supported by pipe supports installed on the floor surface and handrail of the current floor.

[0003] There is no problem when installing a pipe support on the floor surface. However, when installing a pipe support on the handrail, usually, the upper end surface of the handrail is inclined downward toward the living room side, and the width of the structure of the handrail in the outer - inner direction is limited. Therefore, it is not easy to securely install the pipe support and fix it in place. For the purpose of improving this problem, conventionally, configurations for supporting a pipe support on a handrail have been proposed as in Patent Documents 1 to 3 below.

[0004] Patent Document 1 (Japanese Patent Laid - Open No. 8 - 232478) discloses a portal - shaped body that can be fitted to the upper end of a handrail, a clamp screw body that penetrates one vertical plate portion of the portal - shaped body in the horizontal direction, a positioning column that stands on the upper side plate portion of the portal - shaped body and into which a pipe support or the like is fitted, a height - adjusting screw body that vertically penetrates the positioning column and the upper side plate portion of the portal - shaped body, and a base plate that is attached to the lower end of the height - adjusting screw body and can abut against the upper end surface of the upright handrail. The base plate can be inclined corresponding to the inclination angle in the thickness direction of the upper end surface of the handrail, and by adjusting the height of the base plate by the height - adjusting screw body, the inclined upper end corner portion of the upper end surface of the handrail can be configured to abut against the corner portion between the upper side plate portion and the vertical plate portion of the portal - shaped body.

[0005] Patent Document 2 (Japanese Patent Application Laid-Open No. 10-220035) discloses a configuration including a pair of clamping members that are externally fitted to the upper end of a handrail and clamp the upper end, and a fastener that fastens the two clamping members in a manner that allows the distance therebetween to be changed and fixed. The fastener is provided with a vertical shaft portion into which the lower end of a support supported at the upper end of a rising wall is externally fitted.

[0006] Patent Document 3 (Utility Model Registration No. 3139619) supports a pipe support that is crowned in a portal shape at the upper end of a handrail and supports the concrete formwork on the upper floor. It includes a pair of clamping members with a substantially L-shaped side surface that are externally fitted to the upper end of the handrail and are overlapped so as to be able to clamp the upper end portion, and a fastener that is slidably fixed so as to change the installation width between the clamping members and into which the lower end portion of the pipe support is externally fitted. A slit is provided in the longitudinal direction in one of the pair of clamping members, and a guide projection that is slidably inserted into the slit is provided protruding from the opposing surface of the clamping member in the other of the clamping members.

[0007] However, in Patent Document 1, the distance between the one and the other vertical plate portions of the portal-shaped main body is invariant, and the upper plate portion of the portal-shaped main body on both surfaces is not necessarily attached so as to be surely orthogonal to the vertical wall surface of the handrail by the clamping screw body, that is, so that the portal-shaped main body becomes horizontal, and there is a possibility of lacking the accuracy and stability of the attachment.

[0008] That is, the distance between the one and the other vertical plate portions of the portal-shaped main body is invariant, and the inner vertical surface and the outer vertical surface of the handrail are respectively clamped by the clamping screw body and the outer vertical surface of the handrail by the other vertical plate portion. However, if the portal-shaped main body is not placed at an appropriate position with respect to the handrail in the first place, it will be clamped at that inappropriate position.

[0009] Further, Patent Document 2 discloses a structure in which a pair of clamping members having a substantially L-shaped side surface are fastened with a fastener that penetrates the overlapping surface at the upper end of the handrail to adjust the width in the inner-outer direction of the handrail. However, due to the inclination angle of the surface at the upper end of the handrail, a gap is generated between the overlapping surface of the L-shaped clamping member and the upper end surface of the handrail, making it difficult to maintain the horizontality of the pipe support arrangement surface in the L-shaped clamping member, and there is a problem of lacking the accuracy and stability of the installation.

[0010] Patent Document 3 addresses the problem identified in Patent Document 2, where a gap is generated between the overlapping surface of the L-shaped clamping member and the upper end surface of the handrail. To fill this gap and maintain the horizontality of the pipe support arrangement surface in the L-shaped clamping member, an adjustment protrusion is provided on the lower side of the overlapping surface. However, since this adjustment protrusion is only arranged without any specific positioning, there is a possibility that it may escape along the inclination of the handrail due to the load from above the pipe support, the upper formwork, and the placed concrete. Eventually, it becomes difficult to maintain the horizontality of the pipe support arrangement surface in the L-shaped clamping member, and ultimately, the accuracy and stability of the installation are lacking.

[0011] In addition, conventional pipe support fixtures are premised on making the inclination of the upper surface of the handrail horizontal (correcting it horizontally) by a pair of clamping members having a substantially L-shaped side surface. Since the pipe support, the upper formwork, and the concrete are supported on the pair of horizontally arranged clamping members with a substantially L-shaped side surface, the L-shaped pair of clamping members are required to have a load-bearing strength that does not bend or deform, for example. As a result, they have to be made of iron, for example, and the weight is large.

Prior Art Documents

Patent Documents

[0012]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0013] The problem to be solved is that it did not well balance the overall weight reduction, the stability of attachment to the sloping handrail upper surface, and the improvement of attachment accuracy.

Means for Solving the Problems

[0014] To solve the above problems, the present invention provides a pipe support fixture for attaching a pipe support for supporting concrete and formwork when constructing an upper wall surface among non-continuous wall surfaces in the vertical direction in a concrete structure to the upper surface of a lower wall surface. The pipe support fixture includes a pipe support portion provided with an insertion portion for inserting and standing and supporting the lower end portion of the pipe support, a substrate provided in contact with the upper surface, having an engaging portion at one end thereof that engages with one side surface adjacent to the upper surface at a predetermined angle, and an adjusting portion at the other end thereof that adjusts the distance from the engaging portion according to the widths of the other side surface adjacent to the upper surface at a predetermined angle on the side opposite to the one side surface and the one side surface, a receiving plate erected from the contact surface of the upper surface of the substrate for receiving the pipe support portion, and a fixing portion provided on the pipe support portion for fixing the receiving position by the receiving plate.

Effects of the Invention

[0015] In the present invention, since the substrate abuts against the upper surface of the lower wall surface among the non-continuous wall surfaces in the vertical direction without a gap, the substrate itself does not need to have the strength to withstand the vertical load. As a result, for example, if it is made of iron material, it can be made thin and lightweight, and it is also possible to adopt, for example, an aluminum material instead of the iron material. And since the engaging portion absorbs the inclination of the upper surface of the lower wall surface and abuts against the upper surface, it is not necessary to consider the inclination angle of the upper surface of the wall surface during use.

[0016] In addition to the effects of the above-described substrate, in this substrate, a receiving plate erected from the surface that abuts against the upper surface of the wall surface receives the pipe support support portion, and a fixing portion provided on the pipe support support portion maintains and fixes the vertical support of the pipe support. That is, there is an effect that a highly accurate pipe support can be attached without being restricted by the inclination of the upper surface of the wall surface.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0018] The present invention relates to a pipe support fixture for attaching a pipe support for supporting concrete and formwork when constructing an upper wall surface among non - continuous wall surfaces in the vertical direction in a concrete structure to the upper surface of a lower wall surface. The object is to provide a pipe support fixture that is well - balanced in terms of overall weight reduction, stability of attachment to the inclined handrail upper surface, and improvement of attachment accuracy. This is achieved by a configuration comprising a pipe support support portion provided with an insertion portion for inserting and standing - supporting the lower end portion of the pipe support, a substrate provided with an engagement portion that abuts against the upper surface and engages with one side surface adjacent to the upper surface at a predetermined angle at one end, and an adjustment portion at the other end for adjusting the distance from the other side surface adjacent to the upper surface at a predetermined angle on the side opposite to the one side surface to the engagement portion according to the width of the one side surface, a receiving plate erected from the contact surface of the upper surface of the substrate for receiving the pipe support support portion, and a fixing portion provided on the pipe support support portion for fixing the receiving position by the receiving plate.

[0019] The present invention is made by paying attention to the work required for this type of fixture. That is, in order to support the vertical load in the proper use of the pipe support, it is necessary to confirm that the pipe support is always vertical regardless of whether there is an inclination on the upper surface of, for example, a veranda handrail.

[0020] In conventional pipe support fixtures of this type, including Patent Documents 1 to 3, correcting the inclination of the upper surface of the handrail horizontally indirectly leads to an improvement in the verticality of the pipe support as described above, but it is a separate operation, and it is necessary to confirm that the pipe support is always vertical regardless of whether there is an inclination on the upper surface of the veranda handrail. Then, correcting the inclination of the upper surface of the handrail horizontally has a lower importance in terms of the function of the pipe support fixture.

[0021] That is, the present invention extremely omits the function and configuration of horizontally correcting the inclination of the upper surface of the handrail, and instead specializes in improving the stability and attachment accuracy of attachment to the inclined handrail upper surface, and further in terms of handling, overall weight reduction.

[0022] In the present invention, the "one side surface adjacent to the upper surface of the wall surface located below at a predetermined angle" and the "other side surface adjacent to the upper surface of the wall surface located below at a predetermined angle" mean that when the upper surface of the wall surface located below is taken as a reference plane, if the predetermined angle of the one and the other side surfaces with respect to the upper surface is 90°, it means that the upper surface is horizontal, and if the predetermined angle with respect to the upper surface is different for the one and the other side surfaces, it means that the upper surface is inclined. That is, the present invention means that it can be applied whether or not there is an inclination on the upper surface of, for example, a handrail on a veranda.

[0023] Regardless of the presence or absence of an upper surface, the substrate is provided, for example, along the upper surface of a handrail on a veranda, with an engaging portion that engages with one side surface at one end of the substrate, and an adjusting portion that adjusts the width from the other side surface to the engaging portion at the other end of the substrate.

[0024] In this way, the substrate is configured to be along the upper surface of, for example, a handrail on a veranda. By regarding the function of fixing the pipe support support portion that supports the pipe support to the receiving plate of this substrate with a fixing portion, that is, the function of supporting the pipe support and the function of attaching the whole to the upper surface of the handrail as separate, it is not necessary to make the substrate horizontal. Therefore, it is not necessary to intensively receive the vertical load via the pipe support with this substrate. Thus, the substrate can be made thinner or changed to a lightweight material to achieve weight reduction as a whole. The weight reduction makes handling easier, and also enables simple attachment. Because it is simple, anyone can attach it stably, and the attachment accuracy is ensured and improved.

Example

[0025] Hereinafter, specific embodiments of the present invention will be described with reference to FIGS. 1 to 3. Reference numeral 1 denotes a fixture of a pipe support P for attaching a pipe support for supporting the floor surface of the upper veranda and the concrete and formwork for a handrail (described specifically for the handrail in this embodiment) to the upper surface Va of the handrail V of the lower veranda when constructing a non-continuous wall surface in the vertical direction in a concrete structure, such as a veranda. In this embodiment, it has, for example, the following configuration.

[0026] Note that the fixture 1 of the present invention can be used even when the upper surface Va of the handrail V is horizontal. However, in this embodiment, a case where it is used for a handrail V inclined downward by a predetermined angle toward the inner side (hereinafter referred to as the inner side) of the structure will be described.

[0027] Reference numeral 2 denotes, for example, a substrate made of aluminum. One end of this substrate 2 has an engaging portion 2A that engages with one side surface of the handrail V (meaning the outer side of the structure, hereinafter referred to as the outer side) adjacent to the upper surface Va at a predetermined angle, and the other end has an adjusting portion 2B that adjusts the interval from the engaging portion 2A according to the width between the other side surface (meaning the inner side of the structure, that is, the above-mentioned inner side) adjacent to the upper surface Va at a predetermined angle on the side opposite to the outer side surface and the outer side surface, respectively.

[0028] In this embodiment, the engaging portion 2A of the substrate 2 is formed by bending one end portion disposed on the outer side surface of the substrate 2 at a predetermined angle, and the tip of the bent side abuts on and engages with the outer side surface.

[0029] By forming the engaging portion 2A by bending and making only the bent tip abut on the outer side surface, the entire lower surface of the substrate 2 can be brought into contact with the upper surface Va regardless of the inclination angle of the upper surface Va of the handrail V. That is, instead of the substrate 2 receiving the load of the upper pipe support, formwork, and concrete related to the substrate 2, it is received by the handrail V together with the substrate 2. Therefore, the substrate 2 may be made of aluminum with a thickness that can maintain its shape, and even if it is made of iron, it can be made quite thin. Therefore, weight reduction is possible.

[0030] In this embodiment, for example, the adjustment part 2B has an adjustment groove 2Ba formed at the center of the width at the other end of the substrate 2, and an adjustment fitting 2Bb having an L-shaped side view, for example. Further, in the adjustment part 2B, holes are formed at both ends of the adjustment fitting 2Bb centered on the bent part (reference numerals are omitted because they are hidden by other members).

[0031] For example, a bolt is inserted into the hole on one end side of the adjustment fitting 2Bb and screwed with a nut provided on the side opposite to the bolt insertion surface side to tighten and fix the substrate 2 and the adjustment fitting 2Bb, and an adjuster 2Bc is provided with a configuration for positioning the adjustment fitting 2Bb in the adjustment groove 2Ba. A nut is provided in the hole at the other end of the adjustment fitting 2Bb, and a fine adjuster 2Bd is provided with a configuration in which a bolt is screwed into this nut.

[0032] Furthermore, in this embodiment, the substrate 2 has receiving plates 2C, 2C that vertically rise up from both ends in the longitudinal direction of the handrail V (a direction perpendicular to the inner - outer direction). At the upper ends of these receiving plates 2C, 2C, a plurality of semi-circular cutouts 2Ca, 2Ca with downward-facing arcs are formed at the same position in the longitudinal direction and in the inner - outer direction.

[0033] 3 is a pipe support part provided with an insertion part 3a for inserting and standing the lower end part of the pipe support P. In this embodiment, for example, a square pipe is used with the inner - outer direction, and insertion parts 3a, 3a slightly smaller in diameter than the inner diameter of the lower end of the pipe support P project from both ends in the inner - outer direction.

[0034] 4 is a fixing part for fixing the receiving position by the receiving plates 2C of the pipe support part 3 in this embodiment. In this embodiment, for example, the fixing part 4 has a shaft part 4A fixed between the receiving plates 2C, 2C on the lower surface of the pipe support part 3, screw parts 4Aa, 4Aa provided at both ends of this shaft part 4A and fitting between the cutouts 2Ca, 2Ca, and screwing parts 4B, 4B for screwing with the screw parts 4Aa, 4Aa. Note that the shaft part 4A may penetrate the pipe support part 3 so as not to rotate.

[0035] The fixing part 4 fixes the pipe support part 3 at the receiving position on the receiving plate 2C as follows. The shaft part 4A has a larger diameter than the diameters of the screw parts 4Aa, 4Aa, and both end faces of this larger diameter contact the opposing faces of the receiving plates 2C, 2C. The screw parts 4Aa, 4Aa inserted into the notch parts 2Ca, 2Ca protrude from the faces of the receiving plates 2C, 2C opposite to the said opposing faces, and screw parts 4B, 4B are screwed respectively. That is, the receiving plate 2C is clamped by the screw part 4B and the large-diameter face of the shaft part 4A, and by screwing the screw part 4B to the screw part 4Aa, the receiving plate 2C is tightened to fix the position of the pipe support part 3 so that it does not rotate around the axis of the shaft part 4A.

[0036] The fixture 1 configured as above is provided on the handrail V as shown in FIG. 3, for example, to attach the pipe support 1. The substrate 2 is placed on the upper surface Va such that the engaging part 2A is arranged on the outer side surface of the handrail V and the adjusting part 2B is arranged on the inner side surface of the handrail V. In this embodiment, since an example in which the upper surface Va of the handrail V is provided with an inclination downward toward the inside is described, after engaging the engaging part 2A with the outer side surface of the handrail V, the adjusting part 2B is moved downward to the lower side of the handrail V so that the substrate 2 comes into contact along the upper surface Va. Note that it may also come into contact along the upper surface Va due to the weight of the substrate 2.

[0037] After arranging the substrate 2 on the upper surface Va of the handrail V, the adjusting fitting 2Bb is moved outward along the adjusting groove 2Ba in the substrate 2, and the lower end of the adjusting fitting 2Bb is pressed relatively strongly against the inner side surface of the handrail V, and is fixed in position by the adjusting part 2Bc in that state. And if necessary, further fine adjustment of the fixing of the adjusting fitting 2Bb is performed by the fine adjuster 2Bd.

[0038] After attaching the substrate 2 to the upper surface Va, place the pipe support portion 3 on the receiving plates 2C, 2C at the required positions. At this time, as described above, screw portions 4Aa, 4Aa protruding from the surfaces of the receiving plates 2C, 2C opposite to the opposing surfaces are respectively screwed with screwing portions 4B, 4B to clamp the receiving plates 2C, 2C and position-fix the pipe support portion 3 so that it does not rotate around the axis of the shaft portion 4A. Note that the position-fixing at this stage is a temporary fixing so that fine adjustment can be made later, and the pipe support portion 3 only needs to be at a level visible to the naked eye and does not need to be strictly horizontal.

[0039] After temporarily fixing the pipe support portion 3 to the substrate 2, insert the insertion portion 3a into the lower end of the pipe support P, finely adjust it so that the "pipe support P is vertical", and then clamp the receiving plates 2C, 2C to firmly position-fix the pipe support portion 3 so that it does not rotate around the axis of the shaft portion 4A.

[0040] Here, the present invention does not require strict horizontality for the substrate 2 and the pipe support portion 3 in the fixture 1. The reason is that, conventionally and also in the present invention, the absolute and ultimately necessary condition for attaching the pipe support P is that the pipe support P that supports the vertical load of the upper formwork or concrete is vertical.

[0041] In short, it is important to firmly position-fix the pipe support portion 3 with the fixing portion 4 so that it does not rotate with respect to the axis of the shaft portion 4A in a state where the pipe support portion 3 is received by the substrate 2, but strictly speaking, it is not required that the substrate 2 and the configuration corresponding to the pipe support portion 3 are horizontal. The present invention focuses on this point and utilizes this point to bring the substrate 2 into contact with the upper surface Va. By doing so, the substrate 2 can be made of aluminum as in this embodiment, and it is also possible to use a thin iron plate, making it possible to reduce the weight.

[0042] Further, since the engaging portion 2A is engaged so as to absorb the inclination of the upper surface Va without requiring the substrate 2 to be horizontal and is placed on the upper surface Va along the inclination of the upper surface Va, it is possible to easily and surely attach it without being nervous about the inclination of the upper surface Va.

[0043] And since it is certain that the pipe support P is finally adjusted vertically as described above, the only merit left is that it can be easily and surely attached without being nervous about the inclination of the upper surface Va or the horizontality of the pipe support support portion 3. As a result, the pipe support P can be accurately, easily and surely attached to the upper surface Va of the handrail V.

Explanation of Reference Numerals

[0044] 1 (Pipe Support) Fixture 2 Substrate 2A Engaging Portion 2B Adjusting Portion 2C Receiving Plate 3 Pipe Support Support Portion 4 Fixing Portion 4A Shaft Portion 4B Screwing Portion V Handrail (Wall Surface Located Below) Va Upper Surface P Pipe Support

Claims

[Claim 1] 1. A pipe support mounting fixture for attaching a pipe support for supporting concrete and formwork when constructing an upper wall surface of a concrete structure that is not continuous in the vertical direction, to the upper surface of a lower wall surface, the pipe support mounting fixture comprising: a pipe support support part having an insertion part into which the lower end of the pipe support is inserted to support it upright; a base plate which is provided in contact with the upper surface and has at one end an engagement part which engages with one side surface adjacent to the upper surface at a predetermined angle to the upper surface and at the other end an adjustment part which adjusts the distance between the engagement part and the other side surface adjacent to the one side surface and at a predetermined angle to the upper surface on the opposite side to the one side surface; a support plate which is provided upright from the contact surface of the upper surface of the base plate and receives the pipe support support part; and a fixing part which is provided on the pipe support support part and fixes the support position by the support plate.

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