JPH0344925Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a support addition device for adding support, such as a fence, onto a support installation hole.

(Prior art) Conventionally, when installing a support for a fence, etc., the lower end of the support is generally inserted into the support installation hole formed on the top surface of the foundation (concrete block wall, etc.) by a predetermined depth. The gap in the mounting hole was filled with mortar to secure the column.

However, with this method of erecting columns by solidifying mortar, it is necessary to prepare mortar raw materials (cement, sand, water, etc.), as well as kneading them and filling the mortar. However, these tasks have become troublesome.

In addition, in the case of a column in which the lower end of the column is fixed with mortar in the foundation, when replacing the existing column with a new one, conventionally it is common to bury and fix the existing column in the foundation (such as a concrete block wall). ), the existing pillars are removed, the foundation is repaired or a new one is constructed, and the lower end of the new pillar is fixed in the pillar mounting hole of the foundation with mortar. When replacing the pillars embedded and fixed with mortar on the foundation with new ones, the work to replace the pillars was a major undertaking, requiring a long time and a large amount of money.

(Purpose of the invention) In view of the above-mentioned problems with the conventional pillar mounting structure, the present invention allows for the installation of pillars with relatively simple work, not only when installing new pillars but also when replacing existing pillars with new ones. The purpose of this work was to propose a support column addition device that can be easily installed.

(Means for Achieving the Purpose) The prop addition device of the present invention is capable of attaching the prop when inserted into a post mounting hole provided in a base etc. at the bottom of a vertical bar with a threaded portion formed on the upper side. A pair of abutting members having protruding arcuate surfaces that abut against the inner surface of the hole are configured to be able to pivot in an arc in the vertical direction about the vertical bar with the arcuate surfaces facing outward to the left and right, respectively. Moreover, when the arcuate surfaces of each of the abutting members are rotated in an arc from above to below with respect to the vertical bar, the distance between the two arcuate surfaces at the maximum part in the orthogonal direction of the longitudinal bar is as described above. Each of the arcuate surfaces is further caused to rotate in an arc from above to below, changing in an increasing direction from a state smaller than the inner diameter of the support mounting hole to a range larger than the inner diameter of the support support mounting hole. a joint body that is pivoted in a state where it is biased in a direction in which the joint body is attached; and a pedestal that has a hole through which a vertical bar of the joint body is inserted vertically and has an area that can cover the upper part of the column mounting hole. , by inserting the lower part of the joint body into the support mounting hole and inserting the pedestal into the vertical bar, the vertical bar is screwed into the threaded part of the vertical bar, thereby attaching the vertical bar to the pedestal. It is characterized in that it includes a screw member that acts to move the support upward, and a connecting member that connects the lower end of the column to the upper side of the vertical bar.

(Function) In the strut addition device of the present invention, each abutment member is pivoted to the lower part of the vertical bar member with its arcuate surface biased in a direction that causes it to rotate in an arc from above to below. Therefore, when the lower part of the joint body is inserted into the column mounting hole, the arcuate surfaces of each abutting member will come into contact with the inner surface of the column mounting hole.
After fitting the pedestal to the vertical bar in this state, when the threaded member is screwed into the threaded part of the vertical bar, the vertical bar is moved upward relative to the pedestal, and at that time, the circles of each abutting member are Since each of the arcuate surfaces abuts against the inner surface of the strut mounting hole with frictional force, each of the abutment members is rotated downward in an arc around its shaft attachment portion, thereby causing both arcuate As the distance between the surfaces increases, the respective abutting members abut against each other within the column mounting hole, and the joint body is fixed.
Then, it becomes possible to connect the lower end of the column to the upper part of the joint body fixed in the column attachment hole via the connecting member.

(Embodiment) A preferred embodiment of the present invention will be described with reference to FIGS. 1 to 8. The strut addition device of the embodiment shown in FIGS. A pair of left and right matching members 16, 16 are provided at the bottom of the material 11.
A joint body 1 is formed by pivoting the joint body 1 for free arc rotation, a pedestal 2 that covers the upper part of the column mounting hole 6 to which the joint body 1 is attached, and a threaded part 12 formed on the upper part of the vertical bar 11. It is comprised of a screw member 3 to be screwed together and a connecting member for connecting the end of the support column 8 to be erected to the upper part of the joint body 1.

The column mounting hole 6 is formed by embedding a relatively short square pipe 7 with a square cross section into the base 5. When installing a new post 8, this post mounting hole 6 is formed by separately embedding a square pipe 7, but when replacing an existing post with a new one, the post 8 is formed as shown in FIG. ' is cut near the root (L-L' line) and the internal space of the square pipe remaining on the base 5 side is used.

In this embodiment, a square pipe with a square cross section is used as the newly erected support column 8.

In this embodiment, a wing plate bolt is used as the vertical bar member 11 of the joint body 1. That is, this vertical bar member 11 has a bolt portion 12 formed with a male thread at its upper part.
A wing plate 13 extending downward is integrally formed at the lower end of the bolt portion 12. The blade plate 13 has a hole 14 for shaft insertion in its lower part.
is formed.

The pair of abutting members 16, 16 are formed to have the same shape as each other, and are substantially fan-shaped plates (plates) with a protruding arcuate surface 17 having a length range of about 1/3 of the circumference on the outer periphery. It is formed with a thickness of approximately 4 mm). The arcuate surface 17 of the abutment member 16 is provided with gear-shaped small unevenness portions 18 for preventing slipping over its entire length.

The pair of abutting members 16, 16 have arcuate surfaces 17 on each side of the vane plate 13 facing left and right outward, respectively, and are located at predetermined positions from the centers _P1 , _P2 of the respective arcuate surfaces 17,17. The position (code Q) eccentrically downward by the dimension T (Fig. 2) can be rotated in an arc in the vertical direction (in the direction of arrows R, R' or arrows S, S') using one shaft 20. It is attached to the shaft. Therefore, in each of the abutting members 16, 16, the distance from the shaft attachment portion (reference numeral Q in FIG. 2) to the arcuate surface 17 gradually increases as the distance moves from the lower side to the upper side. As this abutment member 16 rotates in an arc from above to below (in the direction of arrows S and S') with respect to the vertical bar 11 about the axis 20, the arcuate surface 17 moves in a direction perpendicular to the vertical bar 11. The output widths W, W of the curves are arranged to gradually increase.

When the abutting members 16, 16 are turned upward (in the directions of arrows R and R'), the distance between the arcuate surfaces 17, 17 (the distance of 2W in FIG. 2) is
is smaller than the inner diameter of the column mounting hole 6, so that the lower part of the joint body 1 can be inserted into the column mounting hole 6, as shown in FIG. The size and pivoting position are determined so that the distance between the respective arcuate surfaces 17 (a distance of 2W) is larger than the inner diameter of the support column mounting hole 6 when the support is pivoted in the direction (direction).

The abutting members 16, 16 are biased by hook springs 24, 24, respectively, in the direction of downward arc rotation (in the direction of arrows S and S'). The hook spring 24 loses its spring biasing force when the abutment member 16 is turned downward to the position where the protruding width W of the arcuate surface 17 is approximately at its maximum as shown in FIG. The abutting member 16 is prevented from turning any further downward (in the direction of arrows S and S') unnecessarily.

The pedestal 2 is formed into a circular inverted container shape with an area that covers the upper part of the column mounting hole 6 (square pipe 7), and has a hole 21 in the center thereof for vertically inserting the bolt part 12. It is formed.

As the connecting member 4, a substantially rectangular parallelepiped block material 40 having a planar shape slightly smaller than the inner shape of the supporting column 8 to be erected is used. A hole 41 is formed in the center of the connecting member 4 to allow the vertical bar 11 of the joint body 1 to pass through the hole 41 vertically. Further, a cut groove 42 reaching the hole 41 is formed on one side of the block material 40. One side wall (first side wall) 43 partitioned by this kerf 42 has two upper and lower sides.
Screw holes 45, 45 are formed at the locations. A thinning section 46 is formed in the vertical direction on the side surface of the block material 40 opposite to the side surface on which the screw holes 45, 45 are formed, and the side wall on the side opposite to the screw hole formation side (second side wall) 44 portion is the first side wall 43
It can be elastically deformed in the direction toward and away from the body by a slight width.

Screw through holes 51, 51 for screwing bolts 50, 50 into the screw holes 45, 45 are formed in one side of the lower part of the newly installed column 8.
The screw holes 51, 51 are vertically elongated holes, and the support column 8 can be vertically adjusted within the range of the elongated holes.

This strut addition device is used in the following manner. For example, as shown in FIG. 7, when installing a new column in place of an existing column 8', cut the existing column 8' at its base (line L-L') and cut the upper section. (The square pipe 7 with the support mounting hole 6 formed inside remains in the base 5.) Each abutment member 16, 1 of the joint body 1
6 is in its natural state biased downward (in the direction of arrows S and S' in FIG. 2) by hook springs 24, 24 and maintained in the posture shown in FIG. In addition, in the natural state of the joint body 1, the distance (2W) between the outer ends (arc-shaped surfaces 17, 17) of each abutment member 16, 16 is
is larger than the inner diameter of the post mounting hole 6. In this joint body 1, the vertical bar 11 is grasped and its lower portion is inserted into the support mounting hole 6 to an appropriate depth. At this time, each of the abutting members 16, 16 has its respective arcuate surfaces 17, 17 abutting against the mouth edge of the post mounting hole 6, so that the abutting members 16, 16 move upward (in the direction of arrows R, R') against the hook springs 24, 24. The respective arcuate surfaces 17, 17 move downward while slidingly contacting the inner surface 6a of the column mounting hole 6. At this time, stability can be improved by positioning the abutting members 16, 16 at mutually opposing corners of the column mounting hole 6, as shown in FIG. When the joint body 1 is inserted (FIG. 4), the respective abutting members 16, 16 are urged outward by the hook springs 24, 24, so that the respective arcuate surfaces 17, 17 are attached to the struts. It is pressed against the inner surface 6a of the hole 6 with appropriate pressure. Next, the pedestal 2 is fitted from above to the outside of the vertical bar 11, and then the connecting member 4 is fitted onto the vertical bar 11.
1. Then, the threaded portion 1 of the vertical bar 11
2, and after the lower surface of the screw member 3 comes into contact with the upper surface of the connecting member 4, when the screw member 3 is further advanced, the vertical bar 11 connects with the connecting member 4.
and can be moved upward relative to the pedestal 2. At this time, the respective arcuate surfaces 17, 17 of the abutting members 16, 16 are pressed against the inner surface of the column mounting hole, and the arcuate surfaces 17 have small uneven portions 18 for preventing slipping.
is formed so that it does not slide against the inner surface 6a of the column mounting hole 6 and can be moved downward (arrow S in
S′ direction). Then, the distance between the outer end surfaces of each of the abutment members 16, 16 (arc-shaped surface 1
7, 17) gradually increases, and the two abutting members 16, 16 push against each other in the post mounting hole 6, and the joint body 1, pedestal 2, and connecting member 4
becomes firmly fixed. Next, the lower part of the column 8 is externally fitted to the outside of the connecting member 4, and the screw holes 51, 51 at the lower portion of the column 8 are overlapped with the screw holes 45, 45 on the connecting member 4 side. 5
1, 51 and screw bolts 50, 50 into screw holes 4
5, 45 and tighten. At this time, as shown in FIG.
The second side wall 44 of the block material 40 is pressed to slightly widen the gap between the grooves 42, and the two side walls 43 and 44 of the block material 40 are pushed against each other between the inner surfaces of the support column 8, and the connecting member 4 and the support column 8 are now firmly fixed.

In this manner, by using the strut addition device of the illustrated embodiment, it is possible to add and fix the strut 8 onto the strut mounting hole 6 with a relatively simple operation. or,
If the column 8 that has been erected and fixed in this manner is to be replaced with a new one after several years, it is sufficient to replace only the column 8 with the joint body 1 fixed in the column mounting hole 6 as it is.

In the above embodiment, the connecting member 4 is the screw member 3.
However, in other embodiments, the screw member 3 directly presses the upper surface of the pedestal 2 to fix the joint body 1 and connect it. The member 4 may be separately fixed to the vertical bar 11 of the joint body 1 by an appropriate method, and the connecting member 4 may be fixed to the vertical bar 11 of the joint body 1 and the support 8.
Any suitable shape can be used as long as it has a structure that allows connection of the two.

Further, in the embodiment described above, the support mounting hole 6 utilizes the internal space of the square pipe 7, but in other embodiments, the support mounting hole 6 is formed directly in the base 5 (for example, made of concrete block) as shown in FIG. It is also possible to use the post mounting holes 6' as they are.

(Effects of the Invention) The prop addition device of the present invention has a structure in which the lower part of the joint body 1 is inserted into the column mounting hole 6 and the pedestal 2 is fitted into the vertical bar 11.
By screwing the screw member 3 into the two abutting members 16, 16, the respective outer ends (arc-shaped surfaces 17, 1
7) The gap between the abutting members 16, 1 is increased.
6 butt against each other in the post mounting hole 6, so that the joint body 1 can be fixed to the post mounting hole 6,
By connecting the lower part of the newly installed column 8 to the fixed joint body 1 via the connecting member 4, it is possible to add the column 8 above the column mounting hole 6. You can easily install the pillars 8 that need to be installed, and by using this pillar addition device, you can not only install the pillars 8 on the foundation 5 for the first time, but also when replacing the existing pillars with new ones. This has the advantage that it can be done with a simple task (cutting the existing pillars from the base of the foundation).

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a strut addition device according to an embodiment of the present invention, and FIGS.
4 is a vertical cross-sectional view showing the installed state of the strut addition device shown in FIG. 1, FIGS. 5 and 6 are cross-sectional views of FIG. and FIG. 8 are explanatory diagrams of how to use the strut addition device shown in FIG. 1, respectively. 1... Joint body, 2... Pedestal, 3... Screw member, 4... Connection member, 5... Base, 6... Support mounting hole, 8... Support column, 11... Vertical bar material, 12... Threaded portion, 16...Abutment member, 17...Circular surface, 2
4...Futsuku spring.

Claims (1)

[Scope of utility model registration request] A protruding arc-shaped surface that collides with the inner surface of the post mounting hole 6 when inserted into the post mounting hole 6 provided in a base etc. is attached to the lower part of the vertical bar 11 having a threaded portion 12 formed on the upper side. A pair of abutment members 1 having 17
6 and 16 are configured so that they can be rotated in an arc in the vertical direction with the arcuate surfaces 17 facing outward to the left and right, respectively, about the vertical bar 11, and the arcuate shape of each of the abutting members 16, 16 is Surfaces 17, 17 are vertical bars 1
When the longitudinal bar 11 is rotated in an arc from above to below with respect to 1, the distance between the maximum part of the vertical bar 11 in the orthogonal direction between the two arcuate surfaces 17 and 17 is smaller than the inner diameter of the column mounting hole 6. The state in which the respective arcuate surfaces 17, 17 are further biased in a direction in which the arcuate surfaces 17, 17 are rotated in an arc from above to below as the pressure changes in an increasing direction to a range that exceeds the inner diameter of the column mounting hole 6. a joint main body 1 which is pivotally attached to the joint main body 1; Insert the lower part of the joint body 1 into the support mounting hole 6 and attach the pedestal 2 to the vertical bar 11.
a screw member 3 that acts to move the vertical bar 11 upward relative to the pedestal 2 by screwing into the threaded portion 12 of the vertical bar 11 in a state in which the vertical bar 11 is fitted; 1. A strut addition device comprising: a connecting member 4 for connecting a lower end of a strut 8 to an upper side of the strut 11;