JP2001159260A - Connecting structure for column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an external appearance and to prevent a bolt from being removed by hiding the bolt from the outside. SOLUTION: This structure comprises a tubular lower column 11 fitted to a concrete foundation, a tubular upper column 21 connected to the upper end of the lower column 11, a wedge member 31 connecting the lower column 11 and the upper column 21, and a cover member 41 covering the upper end of the lower column 11. A connecting taper section 12 inserted with the upper column 21 and expanding upward is formed at the upper end section of the inner periphery of the lower column 11, a supporting taper section 13 expanding upward is formed below the connecting taper section 12, and a taper section 22 coupled with the supporting taper section 13 is formed at the lower end section of the upper column 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for a pillar such as a street light.

[0002]

2. Description of the Related Art In general, a pillar such as a street light can be easily assembled and installed at an installation location in consideration of ease of transportation to a remote place and shortening of welding time at installation. Has been produced. A column shown in FIG. 7 is an example of such an assembly column. It comprises a cylindrical lower support 1 attached to a concrete foundation, and a cylindrical upper support 2 connected to the upper end of the lower support. The connection structure between the lower support 1 and the upper support 2 has a structure using a joint support 3 as shown in FIG.

[0003] That is, a pin 6 is provided at the upper end of the inner peripheral surface of the lower support 1, and is inserted into a concave portion 7 provided at the lower end of the joint support 3. Further, a support portion 4 for supporting the joint column 3 from the outer peripheral surface is provided at an upper end portion of the lower column 1, and the joint column 3 is held at an upper end portion of the lower column 1 by the concave portion 7 and the support portion 4. The upper support 2 is inserted from above along the outer peripheral surface of the joint support 3, and is placed on the upper surface of the support 4. At this time, since the upper flange 5 is provided at the outer edge of the upper end surface of the support portion 4, the displacement of the upper support 2 can be prevented. Then, the upper support 2 and the lower support 1 are connected by fixing the upper support 2 and the joint support 3 with bolts 8.

[0004]

However, in the case of the above-mentioned connection structure, since it is bolted from the outside, it gives an unsightly impression in appearance. In addition, since the head of the bolt is outside, it may be removed by a malicious third party.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the appearance and to prevent the bolt from being removed by hiding the bolt from the outside.

[0006]

SUMMARY OF THE INVENTION The present invention provides a cylindrical lower support attached to a concrete foundation, a cylindrical upper support connected to the upper end of the lower support, and a wedge for connecting the lower support and the upper support. A member and a cover member that covers the upper end of the lower support, the lower end of the upper support is supported by the lower support, and above the support,
The above object has been attained by connecting the upper support and the lower support with a wedge member, and covering the upper end of the lower support and the connecting member with the cover member.

[0007] Since the upper support is supported by the lower support, the weight of the upper support as it is is the coupling force with the lower support. Further, since the upper support is supported by the lower support at two points, the reaction force of the support is reduced, and the rigidity of the joint is increased, so that a stable support is obtained as an assembly support. Further, since the connecting member is covered by the cover member, it is possible to prevent the connecting member from being removed, and the appearance is improved.

[0008]

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

In the first embodiment of the invention relating to the connection structure of the columns, as shown in FIGS. 1 and 2, a cylindrical lower column 11 attached to a concrete foundation, and connected to the upper end of the lower column 11. It comprises a cylindrical upper support 21, a wedge member 31 for connecting the lower support 11 and the upper support 21, and a cover member 41 for covering the upper end of the lower support 11.

At the upper end of the inner peripheral surface of the lower support 11, an upwardly expanding coupling taper 12 through which the upper support 21 is inserted is formed.
Below 2, a support taper 13 extending upward is formed. The coupling taper portion 12 and the support taper portion 1
As shown in FIG. 2, as shown in FIG. 2, a protrusion may be provided on the inner peripheral surface of the lower support 11 and a taper may be provided on the inner peripheral surface of the protrusion. The tapered portion may be directly formed. The coupling taper portion 12 and the support taper portion 13 may be provided annularly on the inner peripheral surface of the lower support 11, or may be provided intermittently.

The upper support 21 has a tapered portion 22 formed at the lower end thereof for fitting to the support tapered portion 13. For this reason, the lower end of the upper support 21 is connected to the lower support 11.
To the tapered portion 2 at the lower end.
2 can be fitted into the supporting tapered portion 13.

At this time, a gap is formed between the outer peripheral surface of the upper support 21 and the connecting tapered portion 12 of the lower support 11. The wedge member 31 is pressed into a gap between the outer peripheral surface of the upper column 21 and the connecting tapered portion 12 of the lower column 11. Thereby, the upper support 21 is fixed at a predetermined position with respect to the lower support 11. And, the wedge member 31
The lower column 11 is connected to the lower column 11 by a connecting member 51 such as a bolt, so that the upper column 21 is fixed to the lower column 11.

As shown in FIG. 2, the inner peripheral surface of the wedge member 31 is provided in parallel with the outer peripheral surface of the upper column 21, and the outer peripheral surface thereof faces upward so as to fit with the coupling taper portion 12. The tapered surface 32 is widened. Therefore, the lower support 11 and the upper support 21 in the coupling taper portion 12 are formed.
Are fixedly connected by a wedge member 31. As shown in FIG. 2, the shape of the wedge member 31 may be a hollow shape such as an annular shape, and when one surface is parallel to the upper support 21, the surface facing this surface faces upward. It may be rod-shaped as long as it has a tapered surface that is narrowed. Further, the rod-shaped wedge member 31 may be attached to a hollow or other hollow support member at a predetermined interval. In particular, it is more preferable to use a wedge member 31 having a hollow shape such as an annular shape or a member attached to a hollow support member, since the center line of the lower support 11 and the center line of the upper support 21 can be easily matched.

The connecting member 51 only has to connect the wedge member 31 and the lower support 11, for example, as shown in FIG.
As shown in the figure, the collar portion 33 provided on the wedge member 31
And a connecting hole provided in the connecting tapered portion 12 of the lower support 11 and connected to the connecting hole by the connecting member 51.

The upper end of the lower support 11 and the connecting member 51 are covered by the cover member 41. Thereby, the connecting member 51 can be covered and concealed, the malicious removal of the connecting member 51 can be prevented, and the appearance is also improved.

As shown in FIG. 2, the cover member 41 is provided with a hole for inserting the upper column 21 at the center thereof, and the upper column 21 is inserted into this hole. It is arranged at the outer edge of the end face, and the portion between them can be of a shape inclined downward. Thus, the lower end of the upper support 21, the upper end surface of the lower support 11, and the connecting member 51 are covered by the cover 41. By using this cover member 41, when rainwater or the like is splashed, the rainwater
Is prevented from accumulating at the connection between the and the upper support 21. As a result, the life of the coating at the connection portion is protected, the life of the coating can be prevented from being reduced, and the life of the support itself can be prevented from being reduced.

As shown in FIGS. 3A and 3B, the second embodiment of the invention relating to the connection structure of the columns changes the form of the connecting tapered portion 12a of the lower column 11 and the wedge member 31a. Except for this, all are the same as the first embodiment.

That is, a lower support 11a shown in FIG. 3B is used in place of the lower support 11 according to the first embodiment, and the wedge member 31 according to the first embodiment is used.
Instead, a wedge member 31a shown in FIG. 3A was used.

The lower support 11a is formed at the upper end of the inner peripheral surface thereof with a coupling tapered portion 12a extending downward and through which the upper support 21 is inserted, and below the coupling taper 12a. Then, a support tapered portion 13 that extends upward is formed.

The wedge member 31a is connected to the wedge member 31a as shown in FIG.
As shown in (a), the inner peripheral surface is provided in parallel with the outer peripheral surface of the upper column 21, and the outer peripheral surface thereof is
tapered surface 32a narrowed upward so as to fit with
Having. At this time, first, the wedge member 31a is fitted to the coupling taper portion 12a, and the flange portion 33a is placed on the upper surface of the coupling taper portion 12a. Next, the upper support 21 is inserted into the inner peripheral portion of the collar portion 33a, and the wedge member 31a is pulled up. Then, the wedge member 31a is press-fitted between the lower support 11a and the upper support 21. As a result, as shown in FIG.
In 2a, the lower support 11a and the upper support 21 are fixedly connected by a wedge member 31a.

The shape of the wedge member 31a is shown in FIG.
As shown in (a), it may be a hollow shape such as an annular shape, and when one surface is parallel to the upper support 21,
If the surface facing this surface has a tapered surface narrowed upward, it may be rod-shaped. Further, the rod-shaped wedge member 31a may be attached to a hollow or other hollow support member at a predetermined interval. In particular, when the wedge member 31a is of a hollow shape such as an annular shape or is attached to a hollow support member, the lower support 1
The center line of 1a and the center line of the upper support 21 are easily matched, which is more preferable.

As shown in FIGS. 4 (a) and 4 (b), a third embodiment of the present invention relating to the connection structure of the struts has a tapered portion 12 for coupling of a lower strut 11 and an upper strut shown in FIGS. All are the same as in the first embodiment, except that the form of 21 and the wedge member 31 is changed.

That is, the lower support 11b shown in FIG. 4B is used instead of the lower support 11 according to the first embodiment, and the upper support 21 according to the first embodiment is used instead of the lower support 11b shown in FIG. 4) is used instead of the wedge member 31 according to the first embodiment using the upper support 21b shown in FIG.
The wedge member 31b shown in FIG.

The upper column 21b is inserted into the lower column 11b at the upper end of its inner peripheral surface, and a projection 14 whose inner peripheral surface is parallel to the outer peripheral surface of the lower column 11b is formed. Below the protruding portion 14, a supporting tapered portion 13 extending upward is formed.

At the lower end of the upper support 21b,
A taper portion 22 that fits into the support taper portion 13 is formed. Therefore, by inserting the lower end of the upper support 21b into the inner periphery of the lower support 11b, the taper 22 at the lower end can be fitted into the support taper 13. Further, a coupling taper portion 23 narrowing upward is formed above the taper portion 22.

Further, the wedge member 31b is provided as shown in FIG.
As shown in (a), the outer peripheral surface is provided in parallel with the outer peripheral surface of the lower support 11b, and the tapered surface 3 narrowed upward so that the inner peripheral surface is fitted with the coupling taper portion 23.
2b.

At this time, first, the lower end of the upper support 21b is inserted into the inner periphery of the lower support 11b, so that the tapered portion 22 at the lower end is fitted into the support taper 13. Next, the wedge member 31b is connected to the upper support 21.
b and the projection 14 of the lower support 11b
Between the wedge member 31b and the lower support 1
1b is connected by a connecting member 51.

The shape of the wedge member 31b is shown in FIG.
As shown in (a), it may be a hollow shape such as an annular shape, and when one surface is parallel to the lower support 11b, a surface facing this surface has a tapered surface narrowed upward. If it does, it may be rod-shaped. Furthermore, the rod-shaped wedge member 31 is provided at a predetermined interval on a hollow or other hollow support member.
b may be attached. In particular, it is more preferable to use a wedge member 31b having a hollow shape such as an annular shape or a member attached to a hollow support member, since the center line of the lower support 11b and the center line of the upper support 21b can be easily matched.

As shown in FIGS. 5 (a) and 5 (b), the fourth embodiment of the present invention relating to the connecting structure of the pillars is different from the first to third embodiments in that the lower pillars 11c are used as the lower pillars 11c.
In place of the support taper portion 13 provided on the lower columns 11, 11a, and 11b, a pin 15 is provided on the inner periphery of the lower column 11c in a direction perpendicular to the length direction of the lower column 11c. As the upper support 21c, a recess 24 is provided at the lower end of the upper support 21c instead of the tapered portion 22 at the lower end of the upper support 21 or 21b. The pin 15 of the lower support 11c and the upper support 21c
Except for the concave portion 24, all are the same as the first to third embodiments.

When the upper column 21c is inserted into the inner periphery of the lower column, as shown in FIG.
The pin 15 of the lower support 11c is inserted into the concave portion 24 of FIG. Then, the wedge members 31, 31a, 31b are press-fitted between the upper column 21c and the lower column 21c, and the wedge members 31, 31a, 31b and the lower column 21c are connected by a connecting member.

The pin 15 shown in FIG. 5A has a cross shape as shown in FIG. 5B, but as shown in FIGS. 6A and 6B, a pin 15 'having a single character is used. Is also good.

Further, the upper columns 21, 2 shown in FIGS.
1b is a cylindrical shape, and the upper support 21c shown in FIGS.
Is a rectangular tube. This is not to say that the first to fourth embodiments are not limited to the respective cylindrical shapes, but any shape can be adopted. For example, the upper pillars 21 and 21b of the first to third embodiments may have a rectangular tube shape, and the upper pillar 21c of the fourth embodiment may have a cylindrical shape. Further, the lower supports 11, 11a, 11b, 11
Each of c is cylindrical, but any shape can be adopted according to the place of use or the like.

The connection structure of the pillars of each embodiment according to the present invention can be adopted as a connection structure of an arbitrary pillar for street lights or the like.

[0034]

By employing the connection structure according to the present invention, the weight of the upper support can be used as it is as the bonding force with the lower support.

Further, since the upper support is supported by the lower support at two points, the reaction force of the support can be reduced and the rigidity of the joint can be increased, so that a stable assembly support can be obtained.

Further, since the connecting member is covered by the cover member, the connecting member can be prevented from being removed.
Also, the appearance is improved.

Further, by using a cover member that can cover from the lower end of the upper support to the outer edge of the upper end surface of the lower support, and whose shape is inclined downward, when rain water or the like is applied, The rainwater can be prevented from collecting at the connection between the lower support and the upper support. For this reason, the coating film of the connection portion is protected, and the life of the coating film can be prevented from being shortened.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a connection structure of pillars according to a first embodiment.

FIG. 2 is a sectional view showing each member of FIG. 1;

FIG. 3A is a cross-sectional view illustrating an example of a wedge member according to a second embodiment. FIG. 3B is a partially enlarged cross-sectional view illustrating an example of a connection structure of columns according to the second embodiment.

FIG. 4A is a cross-sectional view illustrating an example of a wedge member according to a third embodiment. FIG. 4B is a partially enlarged cross-sectional view illustrating an example of a connection structure of a pillar according to the third embodiment.

FIG. 5A is a cross-sectional view showing an example of a connection structure of a pillar according to a fourth embodiment. FIG. 5B is a cross-sectional view taken along line AA in FIG.

6A is a sectional view showing another example of the pin of FIG. 5; FIG. 6B is a sectional view taken along line BB of FIG.

FIG. 7 is a front view showing an example of a conventional assembly support.

FIG. 8 is a front view showing the connection structure of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower support 2 Upper support 3 Joint support 4 Support part 5 Flange part 6 Pin 7 Concave part 8 Bolt 11, 11a, 11b, 11c Lower support part 12, 12a Taper part for connection 13 Taper part for support 14 Projection 15, 15 'pin 21 , 21b, 21c Upper column 22 Taper portion 23 Taper portion for coupling 24 Depression 31, 31, a, 31b Wedge member 32, 32b Tapered surface 33, 33a Collar portion 41 Cover member 51 Connecting member

Claims (4)

[Claims] 1. A cylindrical lower support attached to a concrete foundation, a cylindrical upper support connected to an upper end of the lower support, a wedge member connecting the lower support and the upper support, and an upper end of the lower support An upper end of an inner peripheral surface of the lower column is formed with a coupling tapered portion that extends upward and through which the upper column is inserted, and below the coupling taper portion, An upwardly extending support taper portion is formed, a taper portion that fits into the support taper portion is formed at a lower end portion of the upper support, and a lower end portion of the upper support is formed at an inner peripheral portion of the lower support. By inserting, the taper portion at the lower end thereof is fitted into the taper portion for support, and the wedge member is press-fitted between the outer peripheral surface of the upper column and the taper portion for coupling of the lower column. A lower strut and connected by a connecting member, the upper end and the connecting member of said lower strut, connecting structure covered strut by the cover member. 2. A cylindrical lower support attached to a concrete foundation, a cylindrical upper support connected to an upper end of the lower support, a wedge member connecting the lower support and the upper support, and an upper end of the lower support At the upper end of the inner peripheral surface of the lower support, a downwardly expanding coupling taper portion through which the upper support is inserted is formed, and below the coupling taper portion, An upwardly extending support taper portion is formed, a taper portion that fits into the support taper portion is formed at a lower end portion of the upper support, and a lower end portion of the upper support is formed at an inner peripheral portion of the lower support. By inserting, the taper portion at the lower end thereof is fitted into the taper portion for support, and the wedge member is press-fitted between the outer peripheral surface of the upper column and the taper portion for coupling of the lower column. A lower strut and connected by a connecting member, the upper end and the connecting member of said lower strut, connecting structure covered strut by the cover member. 3. A cylindrical lower support attached to a concrete foundation, a cylindrical upper support connected to an upper end of the lower support, a wedge member connecting the lower support and the upper support, and an upper end of the lower support. An upper end of an inner peripheral surface of the lower support is formed with a support tapered portion extending upward, and a lower end of the upper support is fitted with the support taper at the lower end of the upper support. A portion is formed, and a coupling tapered portion that extends upward is formed above the tapered portion. By inserting a lower end portion of the upper support into an inner peripheral portion of the lower support, a taper portion at the lower end is formed. Into the support taper portion, press-fit the wedge member between the coupling taper portion of the upper support and the lower support, and connect the wedge member and the lower support by a connecting member. The upper end and the connecting member of the lower strut, the connection structure of the covered pillars by the cover member. 4. In place of the supporting taper of the lower support, a pin is provided on the inner periphery of the lower support in a direction perpendicular to the length direction of the lower support, and a taper at the lower end of the upper support. Instead, a recess is provided at the lower end of the upper support, and the upper support is inserted into the inner periphery of the lower support, thereby inserting a pin of the lower support into the recess of the upper support, and the wedge member is connected to the upper support. The wedge member and the lower column are press-fitted between the lower column and the lower column, and the upper end of the lower column and the coupling member are covered with the cover member. Connection structure of the column described.