JP2021055727A - Columnar support - Google Patents

Abstract

To provide a columnar support having a mechanism which can prevent an unintended change while being simple in a structure, and easy in the height adjustment of a lamp.SOLUTION: A columnar support for telescopically connecting a plurality of cylindrical columnar support members comprises: a cylindrical fastening part 25 arranged at a first columnar support member 2; a cylindrical fastened part 43 arranged at a second columnar support member 4, and inserted into the fastening part 25; and a fastening mechanism externally fit to the fastening part 25 into which the fastened part 43 is inserted, and having an adjustment cylinder 6 for adjusting a degree for fastening the fastened part 43. The fastening part 25 has a plurality of slits 25a extending along an axial direction, and the adjustment cylinder 6 has a large-diameter part at one side and a small-diameter part at the other end side, an inclination wall for connecting the large-diameter and the small-diameter part, and a flange part 63 which is formed while extending to the outside of the small-diameter part. When the second columnar support member 4 inserted into the first columnar support member 2 is slid in an axial direction to be positioned suitably, the adjustment cylinder 6 is moved in the axial direction of the first columnar support member 2, and the fastened part 43 is fastened by the fastening part 25 to fix the second columnar support member at the suitable position.SELECTED DRAWING: Figure 1

Description

The present invention relates to a telescopic support for installing an outdoor light or a flag.

Traditionally, in shopping districts and parks, columns have been built at the upper end where appropriate installation objects (hereinafter referred to as objects) such as lamps and flags can be installed for crime prevention and beautification of the city and parks. .. The height of such a strut is generally determined at the time of design so that the object has a desired height.

However, once the pillars are installed in a shopping district or a park, there is a problem that the height of the object cannot be changed even if it is desired to change and adjust the height of the object according to the installation site or the surrounding environment.

Therefore, Patent Document 1 has a plurality of poles, has a male fitting portion in which a plurality of through holes are formed in the lower end portion on the upper stage side, and has a plurality of through holes in the upper end portion on the lower stage side. An external light strut that has a female fitting part that has a male fitting part and a female fitting part that are fitted with one of the through holes overlapping, and a pin is inserted into the overlapping through hole. Proposed.
According to the invention described in Patent Document 1, the height of the lamp can be easily adjusted according to the surrounding environment even after the outdoor lamp support is installed.

Japanese Unexamined Patent Publication No. 11-260123

By the way, in the external light column described in Patent Document 1, the height of the lamp can be easily adjusted by inserting and removing the pin inserted into the through hole. Therefore, in order to prevent the fitting amount of the male fitting part and the female fitting part to be inserted from being changed by mischief, the position of the inserted pin should be a position that cannot be reached even by the height of an adult. Is designed for. Along with this, in the outdoor lamp support described in Patent Document 1, the lamp is located at a height equal to or higher than the height of an adult.
However, depending on the place where the object such as a lamp is installed, it is desired that the position of the object is lower than the height of an adult, and in that case, the adjustment mechanism for adjusting the height of the object is not intended. It is necessary to have a configuration that can prevent changes, but a complicated configuration increases the burden on the operator who adjusts the height of the lamp.

Therefore, the problem to be solved by the present invention is to provide a support column having a mechanism capable of preventing an unintended change while having a simple structure and easy height adjustment of an object.

The strut configuration of the present invention made to solve the above problems is to connect a plurality of tubular strut members in a stretchable manner, and is provided on one of the strut members to be connected. The tubular tightening portion, the tubular tightening portion provided on the other strut member and inserted into the tightening portion, and the tightening portion into which the tightening portion is inserted are fitted externally to tighten the tightening portion. A tightening mechanism having an adjusting cylinder for adjusting is provided, the tightening portion has a plurality of slits extending in the axial direction, and the adjusting cylinder has a large diameter portion on one end side and a small diameter portion on the other end side. It has an inclined wall connecting the large-diameter portion and the small-diameter portion, and a flange portion formed so as to extend to the outside of the small-diameter portion, and slides the other strut member inserted into the one strut member in the axial direction. When positioning is performed, the adjusting cylinder is moved in the axial direction of the one support column member, and the tightened portion is tightened by the tightening portion to fix the positioning.

The adjustment cylinder preferably has a substantially semicircular annular shape in cross section of the flange portion.

It is preferable that the other strut member is formed so that substantially all of the other strut member is inserted into the one strut member.

The plurality of strut members are composed of a first strut member and a second strut member located above the first strut member, and the first strut member is a fixing portion fixed to the installation surface below the tightening portion. It is preferable that an object such as a lamp is attached to the second strut member above the tightened portion.

The present invention has a simple structure and the height of the lamp can be easily adjusted, but since it has a tightening mechanism that can prevent unintentional changes, the position of the lamp is lowered, so that the tightening mechanism is relatively low. However, it is possible to prevent an unintended change in the height of the lamp due to mischief.

A front perspective view of a support column according to an embodiment of the present invention. An exploded front perspective view of the support column of FIG. (A) is a front sectional view of the adjusting cylinder of the column of FIG. 1, and (b) is a front sectional view of the tightening portion of the column of FIG. A front sectional view showing a state in which the tightening portion of the support column of FIG. 1 is tightening the tightened portion.

Hereinafter, the support column 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. It should be noted that FIGS. 1 to 4 emphasize the structure and the form in order to understand the tightening mechanism of the present invention.
The support column 1 of the present embodiment is for installing a lamp (not shown) having a light source such as a discharge lamp or a light emitting diode (LED), and as shown in FIG. 1, the lower end is inserted into the installation surface A. A first strut member 2 which is fixed and has a tightening portion 25 at the upper end, and a mounting portion 45 which has a tightened portion 43 slidably inserted into the tightening portion 25 at the lower end and a lamp is attached to the upper end. A second strut member 4 to be provided, and an adjusting cylinder 6 for tightening the tightened portion 43 by the tightening portion 25 are provided. A power cable connected to the lamp is inserted into the first strut member 2 and the second strut member 4.
The support column 1 can be adjusted by the degree of insertion of the second support column member 4 into the first support column member 2 so that the lamp has a desired height.
The support column 1 has a tightening portion 25, a tightened portion 43, and an adjusting cylinder 6 as a tightening mechanism. When the adjusting cylinder 6 is moved toward the first support column with the tightening portion 43 inserted in the tightening portion 25, the tightening portion 25 in contact with the inclined wall 61c of the adjusting cylinder 6 described later causes the tightened portion to be tightened. 43 is tightened. Thereby, the position of the positioned second support column member 4 can be fixed so that the lamp has a desired height.
The support column 1 is formed so as to be less than or equal to the height of an adult in order to position the lamp tool below the height of an adult.

Hereinafter, each component of the support column 1 will be described.
Although the installation surface A side is the lower side and the lamp installation portion 45 side is the upper side, the lower side and the upper side show a relative positional relationship.

[First strut member 2]
The first strut member 2 has a cylindrical main body 21, a fixing portion 23 inserted into and fixed to the installation surface A on the lower side of the main body 21, and a tightening portion 25 on the upper side of the main body 21. The main body 21, the fixing portion 23, and the tightening portion 25 are integrally formed.
The first strut member 2 is made of a metal material. Specifically, a metal material such as an aluminum alloy, a copper alloy, or an iron alloy can be used.
The axial length of the first strut member 2 can be appropriately set according to the place to be fixed.

The main body 21 has a cable port 21a in the middle in the axial direction.
The cable port 21a is for inserting the power cable of the lamp into the inside of the main body 21.

The fixing portion 23 is formed in a cylindrical shape like the main body 21.
It is sufficient that the length of the fixing portion 23 in the axial direction is long enough to securely fix the support column 1 so that the lamp does not shake.
The outer diameter of the fixed portion 23 is substantially equal to the outer diameter of the main body 21, but may be formed smaller or larger than the outer diameter of the main body 21.

The tightening portion 25 is formed in a cylindrical shape like the main body 21.
The tightening portion 25 is formed so that its outer diameter is smaller than the inner diameter of the large diameter portion 61b of the adjusting cylinder 6 described later, but larger than the inner diameter of the small diameter portion 61a.
Further, although the outer diameter of the tightening portion 25 is smaller than the outer diameter of the main body 21, it may be formed to be substantially equal to the outer diameter of the main body 21. In this case, the inner diameter of the small diameter portion 61a of the adjusting cylinder 6 is also formed to be large corresponding to the size of the outer diameter of the tightening portion 25.

In the tightening portion 25, a slit 25a is formed from the upper edge to the lower side along the central axis direction.
Four slits 25a are evenly provided in the circumferential direction. The number of slits 25a can be changed as appropriate.
Since the slit 25a is formed, the inner diameter of the portion of the tightening portion 25 in contact with the inclined wall 61c of the adjusting cylinder 6 becomes smaller as described later.

[Second strut member 4]
The second strut member 4 has a tubular main body 41, a tightened portion 43 inserted into the tightening portion 25 on the lower side of the main body 41, and a mounting portion 45 for mounting a lamp on the upper side of the main body 41. .. The main body 41, the tightened portion 43, and the mounting portion 45 are integrally formed.
The second strut member 4 is made of a metal material. Specifically, a metal material such as an aluminum alloy, a copper alloy, or an iron alloy can be used.
The axial length of the second strut member 4 can be appropriately set according to the place to be fixed.
When the tightened portion 43 of the second strut member 4 is tightened to the tightening portion 25, the internal space of the second strut member 4 is connected to the internal space of the first strut member 2.

The main body 41 has a cable port 41a in the middle in the axial direction. The cable port 41a is for pulling out the tip end side of the power cable inserted through the inside of the main body 21 from the cable port 21a.

The tightened portion 43 is formed in a cylindrical shape like the main body 41.
The tightened portion 43 is formed so as to be slidable inside the tightened portion 25 until the inner diameter of the tightened portion 25 is reduced by the adjusting cylinder 6 described later. That is, the tightened portion 43 slides in the vertical direction inside the tightened portion 25 when the height of the mounting portion 45 is adjusted.

The outer diameter of the tightened portion 43 is substantially equal to the outer diameter of the main body 41, but may be formed smaller than the outer diameter of the main body 41. As a result, not only the tightened portion 43 of the second strut member 4 but also the main body 41 can be inserted into the first strut member 2. In this way, the main body 41 can be inserted into the main body 21 to make the support column 1 compact, so that the support column 1 can be easily transported and stored.
That is, when the axial length of the first strut member 2 is 1.5 m and the axial length of the second strut member 4 is 1.5 m, the tightening portion 43 is inserted into the tightened portion 25. The axial length of the support column 1 becomes about 3 m, which makes it difficult to handle such as transportation and storage. However, when the main body 41 is inserted into the main body 21, the axial length of the support column 1 is about 2 m. Since they can be used, they are easy to handle.

The attachment portion 45 is for attaching an object to the support column 1, and in the embodiment, is used for attaching a lamp.
In the present embodiment, it is formed in a cylindrical shape and is inserted into the mounting portion of the lamp through an opening at the upper part.
The shape of the mounting portion 45 can be appropriately changed depending on the mounting portion of the lamp to be mounted.

[Adjustment cylinder 6]
The adjusting cylinder 6 is for adjusting the degree to which the tightening portion 25 tightens the tightened portion 43.
The adjusting cylinder 6 has a main body 61 and a flange portion 63 formed at one end of the main body 61 in the axial direction.
The adjusting cylinder 6 is made of a metal material. Specifically, a metal material such as an aluminum alloy, a copper alloy, or an iron alloy can be used.

The main body 61 is formed in a cylindrical shape.
The main body 61 has an inclined wall 61c formed on the inner peripheral surface so that the diameter gradually increases from one side to the other side. A small diameter portion 61a, which is a small diameter opening, is formed on one end side of the inclined wall 61c, and a large diameter portion 61b having an inner diameter larger than that of the small diameter portion 61a is formed on the other end side. In other words, the small diameter portion 61a and the large diameter portion 61b are connected by an inclined wall 61c.
The inner diameter of the small diameter portion 61a is slightly smaller than the outer diameter of the tightening portion 25.
The inclination angle of the inclined wall 61c with respect to the central axis of the main body 61 is extremely small.

The flange portion 63 is formed in the vicinity of the small diameter portion 61a so as to extend outward in the radial direction from the main body 61.
The flange portion 63 is continuously provided in the circumferential direction and is formed in an annular shape, and is formed so as to have a substantially semicircular shape in cross-sectional shape.
The flange portion 63 may be provided intermittently in the circumferential direction. Further, the flange portion 63 may be formed in a flat plate shape.

The adjusting cylinder 6 having the above configuration is fitted onto the tightened portion 43 so that the large diameter portion 61b is located closer to the base end side of the tightening portion 25 side than the small diameter portion 61a.

[About the operation of adjusting the height of the support column 1]
Next, the operation of adjusting the height of the support column 1 will be described.
It is assumed that the first support column member 2 is already fixed to the installation surface A. First, the administrator of the support column 1 will explain the operation for adjusting the height of the lamp, and then the operation for tightening the tightened portion 43 with the tightening portion 25 and the operation for releasing the tightening. Will be described.

First, the operation for adjusting the height of the lamp will be described.
The manager inserts the adjusting cylinder 6 through the tightened portion 43 of the second strut member 4 so that the small diameter portion 61a is on the upper side.
Next, the tightened portion 43 is inserted into the tightening portion 25, and in that state, the second strut member 4 is moved in the axial direction to position the second strut member 4 so that the lamp has a desired height. .. The tightened portion 43 is tightened by the tightening portion 25 in order to fix the positioned second support column member 4.

Next, the operation when the tightened portion 43 is tightened by the tightening portion 25 will be described.
The operator moves the adjusting cylinder 6 toward the base end side of the tightening portion 25. As a result, the inclined wall 61c of the adjusting cylinder 6 comes into contact with the tightening portion 25. The inner diameter of the portion of the tightening portion 25 that is in contact with the inclined wall 61c is reduced, and the inner peripheral surface thereof is pressed against the outer peripheral surface of the tightened portion 43. The degree of pressing increases as the inner diameter of the inclined wall 61c decreases.
After moving the flange portion 63 by hand to some extent, the flange portion 63 is hit from above with a hammer to further move the adjusting cylinder 6 toward the base end side of the tightening portion 25, whereby the tightened portion 43 is tightened by the tightening portion 25.

On the other hand, when releasing the tightening, the operator hits the flange portion 63 with a hammer from below to move the adjusting cylinder 6 to the base end side of the tightened portion 43. As a result, the inclined wall 61c gradually ceases to come into contact with the outer peripheral surface of the tightening portion 25, and the inner diameter of the tightening portion 25 returns to a size at which the tightened portion 43 can slide. The tightening is released by returning the size of the inner diameter of the tightening portion 25.

[About the effect produced by prop 1]
Next, the effect produced by the support column 1 will be described.
The strut 1 is provided on one of the struts to be connected, the first strut member 2, which is provided in a tubular shape extending in the axial direction, and the other strut, which is provided in the second strut member 4, and is provided in the tightening portion 25. It is provided with a tightening mechanism having a tubular tightened portion 43 to be inserted and an adjusting cylinder 6 to which the tightened portion 43 is fitted onto the inserted tightening portion to adjust the degree of tightening of the tightened portion 43. The tightening mechanism can be configured with such a simple structure, and the degree of tightening can be increased. Further, since the adjusting cylinder 6 is formed in a tubular shape, the same aesthetic appearance can be given from any angle.

Further, the tightening portion 25 has a plurality of slits 25a extending along the axial direction, and the adjusting cylinder 6 has a large diameter portion 61b on one end side and a small diameter portion 61a on the other end side, and a large diameter portion 61b and a small diameter portion. It has an inclined wall 61c connecting the 61a and a flange portion 63 formed so as to extend to the outside of the small diameter portion 61a. With this configuration, the degree of tightening of the tightened portion 43 by the tightening portion 25 can be adjusted by striking the flange portion 63 from above with a hammer and moving the adjusting cylinder 6 in the axial direction of the second strut member 4. it can.

Furthermore, the second strut member 4 is formed with an outer diameter in which the main body 41 can be inserted into the tightened portion 25 together with the tightening portion 43. As a result, not only the tightened portion 43 but also the main body 41 can be inserted into the tightening portion 25 and the main body 21 to make the support column 1 compact, so that the support column 1 can be easily transported and stored. ..

In the adjusting cylinder, the cross-sectional shape of the flange portion 63 is formed in a substantially semicircular ring shape. As a result, the flange portion 63 can have sufficient strength to be repeatedly adjusted.

Although the preferred embodiments of the present invention have been described above, other than this, the configurations listed in the above embodiments may be selected or appropriately changed to other configurations as long as the gist of the present invention is not deviated. be able to.
For example, in the present embodiment, a lamp is installed as an object, but the present invention is not limited to this. Other objects include flags, flower pots for planting flowers, solar panels, and the like. When the object is a flag or a flowerpot, the first strut member 2 may not have the cable port 21a, and the second strut member 4 may not have the cable port 41a.

In the present embodiment, an example in which the support is composed of two columns, a first column and a second column, has been described, but the present invention is not limited thereto. The strut of the present invention may be composed of three or more strut.

Further, in the present embodiment, the tightening portion is formed on the first strut and the tightened portion is formed on the second strut, but the present invention is not limited to this. A tightening portion may be formed on the first strut and a tightening portion may be formed on the second strut. That is, the tightened portion may be formed on the upper strut, and the tightening portion may be formed on the lower strut.

Further, a rough surface may be formed on the outer peripheral surface of the tightened portion 43, and a rough surface or microprojections may be formed on the inner peripheral surface of the tightened portion 25.

Further, the support column 1 of the present embodiment is formed at a height such that the lamp is positioned below the height of an adult, but the present invention is not limited to this. The first strut and the second strut may be formed at a desired height so that the strut is taller than an adult, or may be formed by two or more columns.

1 Support 2 First support 25 Tightening part 4 Second support 43 Tightened part 45 Mounting part 6 Adjusting cylinder A Installation surface

Claims (4)

A strut that connects a plurality of tubular strut members in a stretchable manner.
A tubular tightening portion provided on the main body of one of the strut members to be connected, a tubular tightening portion provided on the main body of the other strut member and inserted into the tightening portion, and the covering. It is provided with a tightening mechanism having an adjusting cylinder that is fitted onto the tightening portion into which the tightening portion is inserted and adjusts the degree of tightening of the tightened portion.
The tightening portion has a plurality of slits extending along the axial direction.
The adjusting cylinder includes a large diameter portion on one end side and a small diameter portion on the other end side, an inclined wall connecting the large diameter portion and the small diameter portion, and a flange portion formed so as to extend to the outside of the small diameter portion. Have and
When the other strut member inserted into the one strut member is slid in the axial direction for positioning, the adjusting cylinder is moved in the axial direction of the one strut member, and the tightening portion covers the cover. A strut that tightens the tightening portion to fix the positioning. The support according to claim 1, wherein the adjusting cylinder has a substantially semicircular annular shape of the flange portion. The support according to claim 1 or 2, wherein the other support member is formed so that substantially all of the other support member can be inserted into the one support member. The plurality of strut members are composed of a first strut member and a second strut member located above the first strut member.
The first strut member has a fixing portion fixed to the installation surface below the tightening portion.
The support according to any one of claims 1 to 3, wherein the second support member has a mounting portion to which an object such as a lamp or a flag is mounted above the tightened portion.

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