JP2016156258A - Foundation for support - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a support to be reliably supported and fixed even when accuracy of a base installation position is not increased.SOLUTION: A foundation for a support includes a base 1A that can be freely installed on a support installation bed, and a relay part 1B that connects the base 1A and a support PA erected above it. The relay part 1B comprises a first slide support mechanism S1 for fixing the support PA in such a manner as to be capable of freely changing its position along one direction in a plan view, and a rotary support mechanism K for fixing the relay part 1B in such a manner as to be capable of freely changing its position by rotating it around a vertical axis X.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a support foundation that can be used to install a support such as a handrail on a support installation base.

Conventionally, as this type of support base, there is a base provided with a base that can be installed on a support base such as a slab, and a relay part that fixes the support that is erected above the base (for example, , See Patent Document 1).
The base is composed of a block-shaped precast concrete member, and is arranged at a predetermined position on the slab, and concrete is placed around the slab and fixed integrally.
The relay section includes an insertion hole into which the lower end of the support can be inserted, and a bolt insertion hole provided in a laterally penetrating state on the side, and an anchor bolt embedded in the base is inserted into the bolt insertion hole. The nut is tightened and fixed to the base.

JP 2007-255007 (FIGS. 1 and 2)

According to the above-described conventional support foundation, if both the base and the relay unit are fixed on the support installation base, the standing position of the support is uniquely determined. And when installing the handrail integrally assembled so that several support | pillars may become fixed space | interval, each base and a relay part are installed according to support | pillar space | interval.
Therefore, if the installation interval of the support foundation and the support support interval of the handrail do not match completely, any support will not enter the insertion hole and cannot be installed. Therefore, high accuracy is required, and it takes much time and labor.
In addition, even if high accuracy is ensured in the installation of the support foundations, it is conceivable that the support intervals are not uniform due to manufacturing errors of the handrail itself.

  Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a support base that can support and fix the support securely without increasing the accuracy of the installation position of the base.

  A feature of the present invention is that a base that can be installed on a support base is provided, and a relay unit that connects the base and a support column that is erected above the base. There are provided a first slide support mechanism for fixing the position to be freely changeable along the direction, and a rotation support mechanism for rotating the relay portion around the vertical axis to fix the position to be freely changeable.

According to the present invention, the relay unit is provided with the first slide support mechanism that fixes the support column so that the position can be changed in one direction in a plan view. The fixed position of the support in plan view can be changed along one direction. Furthermore, by providing a rotation support mechanism that rotates the relay unit around the vertical axis to fix the position freely, the first slide support mechanism itself can be rotated around the vertical axis together with the relay unit. It becomes possible.
As a result, the fixed position of the column with respect to the base can be set to an arbitrary position within the plane range on the rotation locus of the first slide support mechanism.

Therefore, even if the mounting position of the base on the support installation base is slightly deviated from the planned position, the axis position of the support is either one of the first slide support mechanism and the rotation support mechanism, or both. By using this, it can be positioned and supported at a predetermined position on the support installation base.
Therefore, it is possible to reliably support and fix the support column at a predetermined position without increasing the accuracy of the installation position of the base, and it is possible to improve the efficiency of installation work of the support column base.

In addition, even if it is necessary to slightly shift the standing position of the support after the support foundation is installed on the support installation base, either the first slide support mechanism or the rotation support mechanism is used. On the other hand, by using both or both, it is possible to easily change the standing position of the column.
As a result, even in the case of a handrail or the like that includes an error in the column spacing, the column spacing error can be absorbed by the relay member, and the column can be erected at a predetermined position without taking time and effort. .

  In the present invention, it is preferable that the relay portion is provided with a second slide support mechanism that fixes the support column so that the position of the support can be changed in a direction that intersects the position change direction of the first slide support mechanism in a plan view. It is.

According to this configuration, since the second slide support mechanism is provided, the planar position of the support can be changed more smoothly in combination with the first slide support mechanism and the rotation support mechanism.
Even when the pillar is a prism, for example, and the direction of the outer peripheral surface is not changed (the rotation angle around the pillar axis is not changed), the planar axis position needs to be changed. By using the 1 slide support mechanism, the rotation support mechanism, and the second slide support mechanism, it is possible to easily perform the alignment of the pillars and the alignment of the surface direction.

  In the present invention, the relay portion supports a first support member supported on the base so as to be rotatable and fixed around the longitudinal axis, a base end portion of the support column, and the first support member. A second support member supported by the support member via the first slide support mechanism, and the rotation support mechanism is provided on one of the base and the first support member. A cylindrical concave portion that opens in the longitudinal axis direction, and a columnar convex portion that is provided on the other of the base and the first support member and can be fitted into the concave portion. It is preferable to be configured.

According to this structure, the support | pillar foundation can be comprised with few parts number with a 1st support member, a 2nd support member, and a base, and it is easy to implement | achieve reduction of member cost.
In addition, since the rotation support mechanism is configured by a fitting structure of the concave portion and the convex portion, the structure is simple and the positioning can be performed more quickly when the base and the first support member are connected. Easy to implement.
Furthermore, since the fitting structure between the concave portion and the convex portion is not easily displaced laterally with respect to the action of the horizontal force, the mutual connection strength can be maintained high.

  In the present invention, the base includes a columnar rising portion, and the relay portion is formed in a state in which an outer peripheral portion projects outward from the rising portion over the entire circumference in a plan view, and It is preferable that a hanging cylinder portion located on the outer peripheral side is provided at the upper end portion of the rising portion in a connected state with the base.

According to this configuration, when a waterproof layer is provided in a state of rising along the rising portion of the base from the support installation base, rainwater that pours onto the support foundation enters the back side of the waterproof layer. It becomes easy to prevent.
That is, since the outer peripheral portion of the relay portion protrudes outward from the rising portion of the base from the rising portion over the entire circumference in plan view, it is possible to prevent rainwater from directly reaching the rising portion. Furthermore, the water that falls along the outer periphery from the top of the relay portion is guided in the direct downward direction by the drooping cylinder portion, so it wraps around the lower surface side of the relay portion and enters between the rising portion and the waterproof layer. Can be prevented. Therefore, the predetermined waterproof property in the installation part of the support | pillar foundation can be ensured.

  In the present invention, it is preferable that the columnar rising portion of the base has a cylindrical shape.

According to this configuration, since the rising portion has a cylindrical shape, there is an isotropic strength characteristic in plan view, and the same drag force is applied to an external force from any direction (radial direction) in plan view. It can be demonstrated.
Therefore, it is possible to support the support column in a more stable state.

It is front view sectional drawing which shows the installation condition of a support | pillar. It is side view sectional drawing which shows the installation condition of a support | pillar. It is a top view which shows the installation condition of a support | pillar. It is a disassembled perspective view which shows the foundation. It is front view sectional drawing of a base. It is a top view of a base. It is a front view sectional view of the 1st support member. It is a top view of the 1st support member. It is a front view sectional view of the 2nd support member. It is a top view of the 2nd support member. It is a disassembled perspective view which shows the foundation of another embodiment. It is a disassembled perspective view which shows the foundation of another embodiment. It is a disassembled perspective view which shows the foundation of another embodiment. It is a perspective view which shows the 1st supporting member of another embodiment. It is front view sectional drawing which shows the support | pillar installation condition of another embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a state in which an embodiment product (hereinafter simply referred to as a foundation 1) of a support foundation according to the present invention is installed on a roof slab (an example of a support installation base) R.
In the embodiment, the roof slab R is preliminarily laid with the waterproof sheet 2 along the upper surface (see FIGS. 1 and 2), and the foundation 1 is placed on the waterproof sheet 2. It is fixed to the roof slab R with bolts 3.

The foundation 1 includes a metal base 1A that can be freely installed on the roof slab R, and a metal relay portion 1B that supports a support column PA that is erected above the base 1A and is connected to the base 1A. Is provided.
In addition, in the said embodiment, the support | pillar PA is comprised as one member of the metal handrail P. FIG. Specifically, the handrail P includes a column PA formed of a metal square tube member adjacent to each other with a predetermined column interval, and a metal horizontal beam PB fixed integrally over the columns P. It is provided and configured (see FIG. 3).

  As shown in FIGS. 4 to 6, the base 1 </ b> A includes a disk-shaped base portion 4 and a columnar rising portion 5 that rises upward from the center of the base portion 4.

  The base portion 4 has a plurality of bolt insertion holes 4a formed on the outer edge portion thereof at equal intervals in the circumferential direction. The base 1 </ b> A can be fixed by inserting the bolt 3 into the bolt insertion hole 4 a and fixing the bolt 3 to the roof slab R.

  The rising portion 5 is formed in a cylindrical shape whose lower end is opened, and its upper end is configured in a closed state. The upper closing portion 5A is formed with a female screw portion 5a for screwing the bolt 9 for attaching the relay portion 1B at the center portion in plan view, and the outer peripheral portion in plan view is raised upward. A portion 5b is provided. Accordingly, the cylindrical portion 5b constitutes a recess 6 that opens upward in the longitudinal axis X direction of the base 1A.

  A cylindrical convex portion 7a of the relay portion 1B, which will be described later, can be fitted into the concave portion 6, and the relay portion 1B is rotated around the vertical axis X with respect to the base 1A in the fitted state of both. It is formed so that it can be made.

  As shown in FIGS. 1, 2, and 4, the relay portion 1 </ b> B includes a first support member 7 that is supported on the base 1 </ b> A so as to be rotatable and fixable around the longitudinal axis X, and a base end of the column PA While supporting the part Pa, it is provided with the 2nd support member 8 supported via the 1st slide support mechanism S1 mentioned later with respect to the 1st support member 7. As shown in FIG.

  As shown in FIGS. 4, 7, and 8, the first support member 7 is configured by a substantially oval-shaped block member having a substantially the same diameter as the base portion 4, and is formed on the lower surface of the first support member 7. A convex portion 7a that can be fitted in the concave portion 6 formed in the above-described rising portion 5 protrudes downward from the central portion. In addition, a bolt insertion hole 7b that passes vertically along the longitudinal axis X is formed in the convex portion 7a. A bolt 9 for connecting and fixing the first support member 7 to the base 1A is inserted into the bolt insertion hole 7b.

The first support member 7 can be fixed to the base 1 </ b> A by tightening the bolt 9 into the female screw portion 5 a in a state where the convex portion 7 a is fitted in the concave portion 6.
The concave portion 6, the convex portion 7 a, and the bolt 9 can fix the relay portion 1 </ b> B around the longitudinal axis X so that the position can be freely changed. The concave portion 6, the convex portion 7 a, and the bolt 9 support rotation. A mechanism K is configured.

On the edge of the lower surface of the first support member 7, a hanging cylinder portion 7 f is provided that hangs downward over the entire circumference. The hanging cylinder portion 7f is formed so as to be positioned on the outer diameter side from the rising portion 5 in a state where the first support member 7 is connected to the base 1A.
In order to improve the water-stopping property around the foundation 1, a waterproof patch 2A is installed so as to cover the base portion 4 and the rising portion 5 of the base 1A from the upper surface of the waterproof sheet 2, as shown in FIGS. However, in order to make it difficult to cause water leakage to the roof slab R at this location, the drooping cylinder portion 7f contributes.
That is, it is easy to prevent rainwater from entering the gap with the rising portion 5 at the upper end portion of the waterproof patch 2A through the lower surface of the first support member 7 by the downward guiding action by the hanging cylindrical portion 7f. Yes.

  The first support member 7 is provided with two dovetail grooves 7 c that are open on the upper surface, with a gap therebetween. Both end portions of the dovetail groove 7c are opened on the peripheral surface of the first support member 7, and the enlarged diameter head portion 10a of the inverted bolt 10 extends from the opening 7d on the peripheral surface to the inner space of the dovetail groove 7c. Can be inserted (see FIG. 4).

  As shown in FIG. 4, the dovetail groove 7c allows the movement in the longitudinal direction of the dovetail groove 7c in a state in which the diameter-expanded head portion 10a of the bolt 10 is fitted, and can prevent the upward escape. Dimensions are formed.

The bolt 10 fitted in the dovetail groove 7c can vertically pass through the second support member 8 in an inverted state, and the second support member 8 is locked to the first support member 7 by tightening the nut 10b. Can be fixed to the state. Further, in a state where the nut 10b is loosened, the second support member 8 can be slid along the longitudinal direction of the dovetail groove 7c. That is, the column PA supported and fixed to the second support member 8 can be similarly slid along the longitudinal direction of the dovetail groove 7c.
The dovetail groove 7c and the bolt 10 are provided to constitute the first slide support mechanism S1.

  A rectangular recess 7e is formed between the dovetail grooves 7c of the first support member 7. The recess 7e has a larger internal dimension than the column PA inserted through the second support member 8. I have. Therefore, the base end portion Pa of the column PA positioned in a loosely fitted state in the recess 7e can follow the second support member 8 and move vertically and horizontally in plan view.

  As shown in FIGS. 4, 9, and 10, the second support member 8 includes a cylindrical portion 8 </ b> A that includes a square insertion hole 8 a that allows the base end portion Pa of the support column PA to be inserted in the vertical direction at the center portion. And a pair of projecting portions 8B that are formed so as to project outward from the opposing two circumferential surfaces of the cylindrical portion 8A.

  A plurality of female screw portions 8b for fixing the column PA inserted in the insertion hole 8a are provided in a part of the peripheral portion constituting the cylindrical portion 8A. As shown in FIG. 2 and FIG. 4, by fixing the male screw member 8 c to the female screw portion 8 b, the leading end portion of the male screw member 8 c bites into the peripheral portion of the column PA, and the column PA Can be fixed to the second support member 8.

The protrusion 8B is provided with bolt insertion holes 8d through which the bolts 10 fitted in the dovetail grooves 7c of the first support member 7 can be inserted.
The bolt insertion hole 8d is configured as a long hole as shown in FIGS. That is, the long hole has a long diameter along the direction intersecting the longitudinal direction of the dovetail groove 7c constituting the first slide support mechanism S1 in plan view.

Therefore, the second support member 8 can be slid along the major axis direction of the long hole on the first support member 7 with the bolt 10 inserted into the bolt insertion hole 8d. Of course, the column PA fixed to the second support member 8 can be similarly slid. Then, the first support member 7 and the second support member 8 can be locked in a locked state by screwing the nut 10b into the upper end portion of the bolt 10 and tightening.
The second slide support mechanism S <b> 2 is configured to include the bolt insertion hole 8 d and the bolt 10.

Further, as shown in FIGS. 4 and 10, a plurality of notch grooves 8 e are formed on the lower surface of the second support member 8.
According to the notch groove 8e, the insertion hole 8a and the bolt insertion hole 8d can be communicated with the external space in a state where the second support member 8 is fixed to the first support member 7, and the insertion hole 8a and the bolt insertion are possible. Rainwater that has entered the hole 8d can be guided and discharged to the external space through the cutout groove 8e.

According to the foundation 1 of the embodiment, even if the installation position of the base 1A is slightly deviated from the planned installation position of the handrail P as shown in FIG. By a simple operation of the first slide support mechanism S1 and the second slide support mechanism S2, each support column PA can be supported and fixed in a predetermined state, and the handrail P can be installed in accordance with a planned plane position.
Specifically, as shown in FIG. 3, the first support member 7 is rotated around the longitudinal axis X by the rotation support mechanism K, and the second support member 8 is moved to the dovetail groove 7c by the first slide support mechanism S1. By sliding along the longitudinal direction and sliding the second support member 8 and the column PA along the major axis direction of the bolt insertion hole 8d by the second slide support mechanism S2, the standing position of the column PA, and The adjustment of the direction in which the outer peripheral surface faces is intended.

[Another embodiment]
Other embodiments will be described below.

<1> The support foundation 1 is not limited to the support for the handrail support PA described in the previous embodiment, and is used for supporting a support such as a fence or another structure. be able to.
Further, the supporting column PA is not limited to the rectangular cylinder member described in the previous embodiment, but may be formed of other polygonal cylinder members or cylindrical members. It is also possible (see FIGS. 11 and 12).
Moreover, you may comprise not only these cylinder members but the polygonal column member and cylindrical member with which the inner space part was buried.
Moreover, the cross-sectional shape of the part fitted with the relay part 1B and the upper part from it may differ. As a specific example, as shown in FIG. 11, the outer shape of the portion fitted to the relay portion 1 </ b> B may be a circular cross section, and the outer shape of the upper portion may be a rectangular cross section. In addition, the fitting portion between the relay portion 1B and the support column PA has a structure in which the support column PA is inserted into the insertion hole 8a of the relay unit 1B. For example, as shown in FIG. 12, a boss portion 7g is formed in the relay unit 1B. And the structure which externally fits the lower end part of support | pillar PA to this boss | hub part 7g may be sufficient.
As shown in FIGS. 11 and 12, if the fitting portion between the column PA and the relay portion 1B is formed to be circular in plan view, it can be relatively rotated around the column axis. The direction in which the outer peripheral surface of the column PA faces can be easily adjusted.
Moreover, the base 1A and the relay part 1B which comprise the support | pillar foundation 1 are not restricted to the shape demonstrated in previous embodiment, It can change suitably.

<2> As described in the previous embodiment, the relay unit 1B is not limited to the one including the first slide support mechanism S1, the second slide support mechanism S2, and the rotation support mechanism K. 11, only the first slide support mechanism S1 and the rotation support mechanism K may be provided. In the case of this embodiment, the bolt insertion hole 8d formed in the second support member 8 is a round hole.

<3> As described in the previous embodiment, the relay unit 1B is not limited to the two members of the first support member 7 and the second support member 8, and may be a single member, for example. Alternatively, a plurality of three or more members may be combined.
Even in the case of two members, the structure is not limited to the structure in which the second support member 8 overlaps the first support member 7. For example, as shown in FIG. The structure which the 1st supporting member 7 overlaps may be sufficient. In this case, the rotation support mechanism K, the second slide support mechanism S2, and the first slide support mechanism S1 are arranged in this order from the bottom to the top.
In addition, the detailed structure of the rotation support mechanism K, the first slide support mechanism S1, and the second slide support mechanism S2 and the vertical arrangement relationship can be changed as appropriate.
For example, the slide support mechanism may be configured with a long hole instead of the dovetail groove, may be configured with a dovetail groove instead of the long hole, or may employ another known slide support mechanism. .

<4> Another embodiment (see FIGS. 13 to 15) of the support foundation 1 will be described.
In this embodiment, the first support member 7 and the upper end portion of the base 1A that supports the first support member 7 are mainly formed in a structure different from the previous embodiment.

  The upper end portion of the base 1A is configured as a circular plane, and a female screw portion 5a is provided at the center thereof.

  As shown in FIGS. 13 to 15, the first support member 7 is configured in a substantially rectangular shape in plan view, and the rectangular intermediate portion 17 </ b> A has a width dimension (a rectangular short-side dimension). ) Is set larger than both end portions 17B in the long side direction of the rectangle.

On the outer peripheral portion of the first support member 7, a hanging cylinder portion 7 f extending downward is provided over the entire periphery.
The hanging cylinder portion 7f is formed so as to be positioned on the outer diameter side in the radial direction from the rising portion 5 in a state where the first support member 7 is connected to the base 1A. Therefore, when rainwater or the like is applied to the first support member 7 and falls downward, it can be guided directly downward by passing through the hanging cylinder portion 7f, and the waterproof patch 2A at the upper end portion of the rising portion 5 It is easy to prevent water from entering the joints.

  A bolt insertion hole (constituting the rotation support mechanism K) 7b having a circular shape in plan view is formed in the central portion of the intermediate portion 17A. A bolt (which constitutes the rotation support mechanism K) 9 is inserted into the bolt insertion hole 7b and is screwed into a female screw portion (which constitutes the rotation support mechanism K) 5a of the rising portion 5, whereby the first support member 7 is It can be attached to the base 1A. By loosening the bolt 9, the first support member 7 can be rotated around the longitudinal axis X to change the position.

At both end portions 17B, elongated hole-shaped bolt insertion holes (constituting the first slide support mechanism) 17C along the rectangular short side direction of the first support member 7 are formed.
The bolt insertion hole 17C is provided at a position close to the intermediate portion 17A side in the both ends 17B, and the inserted bolt 10 can be slid along the major axis direction of the bolt insertion hole 17C. it can.
The bolt 10 is inserted upward from below with the enlarged diameter head portion 10a positioned on the lower end side. On the lower surface of the both end portions 17B, ribs 18 projecting downward are provided on both sides of the bolt insertion hole 17C.

  The distance between the ribs 18 is set to a dimension corresponding to the minimum diameter of the enlarged diameter head 10a of the bolt 10. The enlarged diameter head 10a of the bolt 10 inserted from below into the bolt insertion hole 17C 18, and the peripheral surface of the enlarged diameter head portion 10 a is restrained by the side surface of the rib 18, so that the bolt 10 can be prevented from rotating.

Further, each end portion of the rib 18 reaches the drooping cylinder portion 7f and is integrated.
Accordingly, the portion around the bolt insertion hole 17 </ b> C in the first support member 7 can be reinforced by the ribs 18.

Of the ribs 18 on both sides of the bolt insertion hole 17C, one rib 18a arranged on the intermediate portion 17A side is more than the other rib 18b arranged on the opposite side across the bolt insertion hole 17C. The rib height is set large (see FIG. 15).
Of the first support member 7, stress concentration is likely to occur at a portion where the width dimension changes, and therefore, the one rib 18 a having a large height is disposed at the portion, so that the first support member 7 is arranged. 7 stress balance can be averaged.

  Further, the one rib 18a having a large height has a high effect of guiding rain water falling through the bolt insertion hole 17C in the direction directly below, similar to the drooping cylinder portion 7f. It is easy to prevent water from entering the joint with the waterproof patch 2A.

According to the foundation 1 of the another embodiment, the second slide support mechanism S2 provided in the second support member 8 attached on the first support member 7 and the first slide support mechanism provided in the first support member 7 are provided. S1 and the rotation support mechanism K that supports the first support member 7 so as to be rotatable about the longitudinal axis X, so that the centering of the column PA supported by the relay unit 1B and the outer peripheral surface direction alignment are performed. It can be implemented more easily.
In particular, the first support member 7 has a simple shape with a thin design, but can have high strength, and can improve economy and handleability.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

  The foundation for the support can be used for a support for another support instead of the support for the handrail support.

DESCRIPTION OF SYMBOLS 1A Base 1B Relay part 5 Rising part 6 Concave part 7 1st support member 7a Convex part 7f Drooping cylinder part 8 2nd support member K Rotation support mechanism PA support | pillar Pa base end R Roof slab (an example of support | pillar installation base)
S1 First slide support mechanism S2 Second slide support mechanism X Vertical axis

Claims (5)

A base that can be freely installed on the support base,
Providing a relay part for connecting the base and a support column standing above the base;
A first slide support mechanism for fixing the post to the relay portion so that the position of the post can be changed in one direction in a plan view;
A support base provided with a rotation support mechanism for rotating the relay portion around a longitudinal axis to fix the relay portion so that the position can be freely changed.   2. The support according to claim 1, wherein the relay unit is provided with a second slide support mechanism that fixes the column so that the position of the support can be changed in a direction that intersects the position change direction of the first slide support mechanism in a plan view. For foundation. The relay portion is supported on the base so as to be rotatable and fixed around the longitudinal axis, and
And a second support member that supports the base end portion of the column and is supported by the first support member via the first slide support mechanism.
The rotation support mechanism includes a cylindrical recess provided in one of the base and the first support member and opening in the longitudinal axis direction, and the other of the base and the first support member. The column base according to claim 1, further comprising: a columnar convex portion that is provided on the concave portion and can be fitted into the concave portion. The base includes a columnar rising portion,
The relay portion is formed in a state in which an outer peripheral portion protrudes outward from the rising portion over the entire circumference in a plan view, and is connected to the base in an outer peripheral side at an upper end portion of the rising portion. The strut foundation according to any one of claims 1 to 3, further comprising a hanging cylinder portion positioned at the position.   The pillar foundation according to any one of claims 1 to 4, wherein the columnar rising portion of the base has a columnar shape.

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