JP3106072U - Telescopic column fastening device - Google Patents

Abstract

An object of the present invention is to provide a fastening device for a telescopic strut in which a gap is hardly generated between an upper end portion and a ceiling of the telescopic strut even by load or vibration.
A pair of first and second insertion members (2a, 2b) each having an insertion hole (H) that can be inserted through a second pipe member (P1b) and cannot be inserted through the first pipe member (P1a). A bolt member 4 supporting the first insertion member 2a on the lower side and a second insertion member 2b on the upper side with a predetermined space therebetween, a pressing force adjusting rotating member 7, and a second A spring member 8 interposed at the tip of the bolt member 4 protruding from the upper end side of the insertion member 2b, and a nut member screwed to the tip 4 of the bolt member so as to prevent the spring member 8 from being pulled out. 10 is screwed into a side portion of the second insertion member 2b via a screw hole and a nut formed in a direction orthogonal to the insertion hole H, and the tip end thereof is pressed against the outer peripheral surface of the second pipe member P1b. Screw member for fixing the second insertion member 2b And a 1 Tokyo.
[Selection diagram] Fig. 1

Description

  The present invention relates to a fastening device for a telescoping strut which is erected between an indoor ceiling and a floor surface and can be used as a strut for an assembly shelf or a fall prevention device for furniture.

FIG. 9 shows an example of a conventional structure for fastening a telescopic column.
As shown in FIG. 9, the telescopic support P2 includes a first pipe member P2a, a second pipe member P2b inserted inside the first pipe member P2a, a screw-type length adjustment mechanism A, and the like. It is composed of The outer diameter of the second pipe member P2b is selected to be slightly smaller than the inner diameter of the first pipe member P2a, and the second pipe member P2b is slidable along the inner peripheral surface of the first pipe member P2a. It is decorated and the entire length is stretchable.

  A screw hole 30 is formed in an upper side portion of the first pipe member P2a, and a screw member 31 for fixing is screwed. By rotating the screw member 31 in the fastening direction and pressing the distal end portion 31a against the peripheral surface of the second pipe member P2b inside, the second pipe member P2b is moved from the first pipe member P2a to a desired position. It can be fixed at the position extended by the length.

  The screw-type length adjusting mechanism A includes an adjusting member 40 having a male screw portion 40a below, and a female screw portion 41 formed on the inner peripheral wall on the upper end side of the second pipe member P2b. The male screw portion 40a of 40 is screwed into the female screw portion 41 of the pipe member P2b, and the adjusting member 40 is rotated in a predetermined direction to advance and retreat.

  Reference numeral 42 denotes a contact member that is disposed at the tip of the adjustment member 40 and contacts the ceiling C. The contact member 42 is formed of an elastic body such as rubber. Although not shown, a contact member for contacting the floor surface is also provided at the lower end of the first pipe member P2a.

When using the telescopic column P2 having the above-described configuration, first, the contact member at the lower end of the first pipe member P2a is brought into contact with the floor surface, and the column P2 is set upright.
Next, the second pipe member P2b is extended to bring the contact member 42 at the tip into contact with the ceiling C. In this state, the fixing screw member 31 is rotated in the tightening direction, and the second pipe member P2b is rotated. Is fixed.

Next, the adjusting member 40 of the screw-type length adjusting mechanism A is grasped by hand, and the adjusting member 40 is rotated in a direction (for example, clockwise) to be drawn out from the second pipe member P2b. As a result, the adjusting member 40 is extended by a small amount, and the telescopic column P2 stands upright between the ceiling and the floor.
The plurality of telescoping columns P2 erected in this manner are used as columns of an assembly shelf in which a shelf member is mounted on each column P2.

  In addition, the telescopic column P2 was erected between the ceiling plate and the ceiling of furniture such as a closet so that it could be used as a furniture fall prevention device due to shaking such as an earthquake. .

However, in the conventional screw-type length adjusting mechanism A, there is a problem that the tightening operation may be difficult to perform because the adjusting member 40 is located at the uppermost portion.
In addition, since the operation of the adjusting member 40 is difficult to perform as described above, there is a problem that the tightening is likely to be insufficient, and the stretchable column P2 is apt to be loosened.
For this reason, a gap is easily generated between the upper end portion of the adjustment member 40 (the contact surface of the contact member 42) and the ceiling C, which may cause looseness in the assembly shelf or, in the worst case, vibration or the like, and the shelf itself may be vibrated. There is a risk of falling.

  In addition, when the telescopic strut P2 is used as a furniture fall prevention device, a gap is easily generated between the extension C and the ceiling C, and there is a possibility that a sufficient fall prevention effect cannot be exerted at the time of an earthquake or the like.

  On the other hand, there is also a type in which a spring is interposed at the lower end or the upper end of the strut to stretch it, but since the pressure applied between the floor surface and the ceiling is determined by the strength of the spring, the user may appropriately There was a disadvantage that the pressure could not be adjusted.

  The present invention has been devised to solve the above problems, and it is possible to easily adjust the pressure between the floor surface and the ceiling to apply a sufficient pressure, and to apply a load or An object of the present invention is to provide a fastening device for a telescopic strut in which a gap is hardly generated between an upper end portion and a ceiling even by vibration.

  In order to achieve the above object, the present invention provides a first pipe member (P1a) having an outer diameter slightly smaller than the inner diameter of the first pipe member, and an inner surface of the first pipe member. A second pipe member (P1b) which is slidably fitted along the inside thereof, and which is a fastening device for a telescopic strut which is erected in a state of being stretched between a ceiling (C) and a floor surface (F). A first and a second insertion member (2a, 2b) each having an insertion hole (H) having a diameter that can be inserted into the second pipe member and cannot be inserted into the first pipe member; A bolt member (4) that is inserted into a bolt insertion hole formed at a corresponding position of the second insertion member and supports the two at a predetermined interval (S); It was screwed into the screw part (4a) of the bolt member at the interval and rotated in one direction The pressing force against the second insertion member is increased, and the pressing force adjusting rotation member for reducing the pressing force when rotated in the other direction, and the tip of the bolt member protruding from the second insertion member. An interposed spring member (8), a nut member (10) screwed to a tip of the bolt member so as to prevent the spring member from being pulled out, and the insertion member being inserted into a side portion of the second insertion member. A screw member which is screwed into a screw hole formed in a direction perpendicular to the hole, and whose tip (11a) is pressed against the outer peripheral surface of the second pipe member to fix the second insertion member ( 11), the first insertion member is inserted through the second pipe member such that an edge of an insertion hole formed in the first insertion member comes into contact with an end surface of the first pipe member, and 1 Lower or upper end of pipe member is on the floor In a state where the upper end or the lower end of the second pipe member is in contact with the ceiling, the second insertion member is fixed to the second pipe member by tightening the screw member, and the pressing force adjusting rotation is performed. A pressing force is applied to the second insertion member by rotation of the member in a predetermined direction, and the pressing surface presses the first pipe member and the second pipe member at the ends thereof at the floor surface and the ceiling. To be pressed against.

Further, the pressing force adjusting rotating member and the screw member each include a gripping member having irregularities on a peripheral surface.
The first and second insertion members have a U-shape, and the two insertion holes can be respectively formed such that the centers are located on the same straight line.

  According to the fastening device for a telescopic strut according to the present invention, the end of the telescopic strut composed of the first pipe member and the second pipe member is sufficient for the floor and the ceiling. Can be erected in a state in which the second pipe member is pressed against the ceiling, so that a gap between the upper end portion of the second pipe member and the ceiling can be suppressed even when affected by a load or vibration. In addition, the pressure applied between the floor and the ceiling can be easily adjusted by rotating the rotating member for adjusting the pressing force, which is located at the position where the operation is easy, in the predetermined direction. Therefore, when an assembling shelf is constituted by telescopic columns that are erected by using the tightening device, rattling can be effectively prevented even under the influence of a load or vibration. Stable stability and load resistance can be ensured. In addition, if the telescopic strut that is erected using this fastening device is used as a furniture fall prevention device, it is unlikely to loosen even when it is affected by vibration, and the fall prevention function during an earthquake occurs. It can be expected to fully demonstrate.

  In addition, by applying the telescopic strut using the telescopic strut tightening tool to a post of an assemblable shelf, the work of assembling the shelf can be facilitated and the efficiency can be improved.

  In addition, according to the fastening device for the telescopic strut according to the present invention, the pressure can be manually adjusted and the second pipe member can be easily fixed.

  According to the third aspect of the present invention, the structure can be simplified and the manufacturing cost can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a perspective view showing a configuration of a fastening device for a telescopic strut according to an embodiment, FIG. 2 is a top view thereof, FIGS. 3 to 5 are explanatory views showing its use state, and FIG. FIG. 7 is a perspective view showing a configuration example of an assembling shelf using a fastening device of a type column, and FIG. 7 is a perspective view showing a fall prevention device of furniture using the fastening device of a telescopic column according to the embodiment.

  As shown in FIG. 1, the fastening device for a telescopic strut according to the present embodiment has an insertion hole H having a diameter that can be inserted into the second pipe member P1b and cannot be inserted into the first pipe member P1a. A pair of first and second insertion members 2a and 2b provided, a first insertion member 2a being on a lower side, a second insertion member 2b being on an upper side, and a predetermined interval S is formed therebetween. The bolt member 4 to be supported is screwed into the screw portion 4a of the bolt member 4 at the interval S, and is pressed against the second insertion member 2b when rotated in one direction (clockwise in the present embodiment). A pressing force adjusting rotary member 7 for increasing the pressure and reducing the pressing force when rotated in the other direction (in this embodiment, counterclockwise), and a bolt member protruding from the upper end side of the second insertion member 2b. 4 and a spring member 8 interposed at the tip of A nut member 10 screwed to the tip 4 of the bolt member so as to prevent withdrawal; a screw hole (not shown) formed in a side portion of the second insertion member 2b in a direction orthogonal to the insertion hole H; A screw member 11 is screwed through a nut 13 (see FIG. 2), and the tip end 11a is pressed against the outer peripheral surface of the second pipe member P1b to fix the second insertion member 2b. ing.

  Here, the telescopic strut P1 is composed of a first pipe member P1a and a second pipe member P1b, and the outer diameter of the second pipe member P1b is slightly smaller than the inner diameter of the first pipe member P1a. The second pipe member P1b is selected to be small, and is slidably mounted along the inner peripheral surface of the first pipe member P1a.

  Although not particularly limited, when annular engagement grooves are formed at predetermined intervals on the outer periphery of the first pipe member P1a, a support sleeve for shelf locking is engaged with the engagement grooves. The shelf member can be mounted on the shelf. This makes it possible to configure an assembled shelf on which a shelf member is mounted at a desired height using the plurality of extendable columns P1 (an example of the configuration will be described later).

  The first insertion member 2a and the second insertion member 2b have substantially the same shape, and in the present embodiment, are formed by bending a stainless steel plate. More specifically, the first insertion member 2a will be described as an example. The first insertion member 2a is composed of horizontal portions 2a1, 2a3 and a vertical portion 2a2 such that the cross-sectional shape is U-shaped. The horizontal portions 2a1 and 2a3 have a substantially elliptical planar shape, and an insertion hole H for the second pipe member P1b is formed at one end. An insertion hole for the bolt member 4 is formed on the other end. Further, in this embodiment, a pipe member 3a for inserting the bolt member 4 is welded between the horizontal portions 2a1 and 2a3. Thus, the manufacturing cost can be reduced by simplifying the configuration.

  The second insertion member 2b is also composed of horizontal portions 2b1, 2b3, a vertical portion 2b2, and a pipe material 3b, and has substantially the same structure as the above-described first insertion member 2a, but the screw member 11 is screwed into the vertical portion 2b2. The difference is that a screw hole (not shown) is formed. Although not particularly limited, in the present embodiment, a nut 13 aligned with the screw hole is welded to the back side of the vertical portion 2b2, and a screw portion 11a of a screw member 11 for fixing is screwed to the nut 13. (See FIG. 2).

The bolt member 4 has a tip portion inserted through an insertion hole (a lower end side of the pipe member 3a) of the first insertion member 2a, and a lower end portion 4b thereof is fixed by welding to the outside of the horizontal portion 2a1.
The length of the screw portion 4a of the bolt member 4 depends on the height (for example, about 25 mm each) of the vertical portions 2a2 and 2b2 of the first insertion member 2a and the second insertion member 2b, and the length of the first insertion member. The length obtained by adding the length of the interval S between the second insertion member 2b and the second insertion member 2b (for example, about 30 mm at the maximum) and the length of the second insertion member 2b protruding above (for example, about 30 mm). It will be selected.

  A nut 6 is provided outside the horizontal portion 2a3 of the first insertion member 2a, and is screwed to the screw portion 4a of the bolt member 4 (see FIG. 5). Further, above the nut 6, the pressing force adjusting rotating member 7 is screwed with the screw portion 4a.

Above the pressing force adjusting rotary member 7, the second insertion member 2b is inserted into and supported by the bolt member 4 via the pipe member 3b.
A screw member 4a of the bolt member 4 protruding from the upper surface of the horizontal portion 2b3 of the second insertion member 2b has a spring member 8 inserted therethrough, and a nut formed of a cap nut via a resin spacer 9 thereon. The member 10 is screwed.

  Note that gripping members (7a, 11b) having irregularities are provided on the peripheral surfaces of the pressing force adjusting rotating member 7 and the fixing screw member 11, respectively. Thereby, the operation of adjusting the pressure and the operation of fixing the second pipe member can be easily performed manually.

Next, a method of using the fastening device 1 for a telescopic column having the above-described configuration will be described with reference to FIGS.
In the present embodiment, a case will be described in which an assembly shelf T (see FIG. 6) is configured by using the telescopic support P1.

  First, the shelf member 20 is attached to the first pipe member P1a of each of the telescopic columns P1 arranged at the four corners of the assembly shelf. The method of attaching the shelf member 20 is not particularly limited. For example, a support sleeve is attached to an annular engagement groove formed on the outer periphery of the first pipe member P1a, and sockets formed at four corners of the shelf member 20 are provided. The part 21 can be fitted and mounted on the supporting sleeve.

Although not particularly limited, as the shelf member 20, a so-called wire shelf in which wires such as steel wires are assembled in a rectangular mesh and the contacts are welded can be used.
Next, the first insertion member 2a is turned downward from the upper end side of the second pipe member P1b provided inside each first pipe member P1a, and the fastening device 1 is inserted through the insertion hole H.

  The member indicated by reference numeral 12 in FIG. 3 is a ceiling contact member made of an elastic material such as rubber. When the fastening device 1 is inserted, the contact member 12 is Removed and performed. Further, although not particularly limited, a floor contact member 50 made of an elastic material such as rubber is also arranged on the lower end side of each first pipe member P1a (see FIG. 6).

  Since the diameter of the insertion hole H is designed to be smaller than the diameter of the first pipe member P1a, the fastening device 1 inserted into each of the second pipe members P1b is provided with a second end on the end face of the first pipe member P1a. The horizontal portion 2a1 (the edge of the insertion hole H) of the first insertion member 2a is locked in contact (see FIG. 3).

  Next, as shown in FIG. 4, each second pipe member P1b is fed out from the first pipe member P1a, and is held in a state where the contact member 12 at the tip is in contact with the ceiling. The fixing screw member 11 is rotated in the fastening direction, and the tip of the screw portion 11a is pressed and fixed so as to slightly bite into the outer peripheral surface of the second pipe member P1b.

  Subsequently, as shown in FIG. 5, by rotating the pressing force adjusting rotating member 7 in the tightening direction, each of the telescopic struts is applied in a state where appropriately adjusted pressure is applied to the floor surface F and the ceiling surface C. P1 can be erected.

Thus, an assembly shelf T as shown in FIG. 6 can be configured.
In the assembly shelf shown in FIG. 6, a fastening device 1 is used in which the members such as the pressing force adjusting rotary member 7 are located inside the assembly shelf in the left and right telescopic columns P1. This is to prevent members such as the pressing force adjusting rotating member 7 from protruding outside the assembly shelf T to prevent installation, or to interfere with other furniture or the like. Such a reverse fastening device can be realized by reversing the attachment of the first insertion member 2a and the second insertion member 2b up and down. However, it is not indispensable to use the fastening device 1 that is turned left and right as shown in FIG. 6, and it is a matter of course that the fastening device 1 having the same configuration may be used depending on the installation environment of the assembly shelf T. .

  As described above, according to the telescopic column tightening device 1 according to the present embodiment, the floor surface is formed by the end of the telescopic column P1 including the first pipe member P1a and the second pipe member P1b. F and the ceiling C can be erected easily and sufficiently under pressure, so that the upper end of the second pipe member P1b (the contact member 12) A gap between the ceiling C) and the ceiling C can be prevented. Therefore, the assembly shelf T using the standing telescopic columns P1 erected by using the fastening device 1 can effectively suppress the occurrence of rattling even when affected by a load or vibration. As a result, sufficient stability and load resistance can be ensured.

  In addition, in the assembly shelf T shown in FIG. 6, the case where the tightening device 1 is used for all four extendable columns P1 is shown, but depending on the installation environment, two on the back side or two on the near side are shown. In some cases, sufficient stability or the like can be ensured simply by attaching the tightening device 1 to the device.

  In addition, the fastening device 1 for a telescopic strut according to the present embodiment can be used as a furniture fall prevention device other than the assembly shelf. That is, as shown in FIG. 7, for example, two extendable columns P1 are installed between the ceiling plate 61 of the furniture 60 such as a closet and the ceiling C, and the top plate 61 and the ceiling are fixed by the fastening device 1. It is erected in a state where pressure is easily and sufficiently applied to C. This makes it difficult for the installation of the telescopic strut P1 to be loosened even when it is subjected to vibration due to walking of a person or the like, and it can be expected that the furniture 60 will sufficiently exhibit the function of preventing the furniture 60 from overturning when an earthquake occurs.

Next, with reference to FIG. 8, another usage mode of the fastening device 1 will be described. The same components as those in the above-described embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.
In FIG. 8, the tightening device 1 is engaged with the upper end of the first pipe member P1a. More specifically, the engaging member 100 is mounted on the upper end of the first pipe member P1a, and the lower end of the tightening device 1 comes into contact with the upper end of the engaging member 100. I have.

The engagement member 100 includes an interior portion 100b having a diameter that can be inserted into the pipe member P3, and a head portion 100a formed to have a diameter slightly larger than the outer diameter of the pipe member P3 and locked at the upper end of the pipe member P3. It is configured.
On the upper surface of the head portion 100a, an engagement hole 100c is formed in which the lower end portion 4b of the bolt member 4 on the lower end side of the fastening device 1 is accommodated.

An auxiliary column 101 is inserted into the insertion hole H of the first insertion member 2a and the second insertion member 2b. Further, the lower end side of the auxiliary support column 101 is supported by a resin fixture 102 so as to be vertically slidable with respect to the pipe member P3.
A contact member 103 having a rubber non-slip attached to the upper surface is engaged with the upper end of the auxiliary support 101. Note that, in addition to the function of enhancing the adhesion to the ceiling C, the contact member 103 has a function such as bruising the worker's finger or the like when the auxiliary support 101 itself drops by mistake during the fixing operation of the auxiliary support 101. It is desirable to use a flexible sponge or other material so as not to injure the user.

Thus, in the method of mounting the column having the above structure, first, the auxiliary column 101 is slid upward in a state where the lower end portion 50 of the pipe member P3 is in contact with the floor surface F and stands upright. The contact member 103 is brought into contact with the ceiling C.
Next, the auxiliary support column 101 is fixed by rotating the fixing screw member 11 in the fastening direction.

Next, by rotating the pressing force adjusting rotating member 7 in the tightening direction, the telescopic strut P4 is erected in a state in which the floor surface F and the ceiling surface C are appropriately adjusted to easily and sufficiently apply pressure. Can be installed.
Like the telescopic support P1 according to the above embodiment, the telescopic support P4 erected in this manner can use the support of the assembly shelf as a fall prevention device such as furniture.

Although the invention made by the present inventors has been specifically described based on the embodiment, the invention is not limited to the above embodiment, and can be changed without departing from the gist of the invention.
For example, it is also conceivable to construct a shelf having a simple structure by erecting a single telescopic column P1 using the fastening device 1 and providing a shelf plate member supported in a cantilever state on the telescopic column P1. Can be

  Also, the telescopic strut P1 and the tightening device 1 are turned upside down so that the end of the second pipe member P1b abuts on the floor F and the end of the first pipe member P1a abuts on the ceiling C. Even so, the same effect can be exerted.

It is a perspective view which shows the structure of the fastening tool of the telescopic support which concerns on embodiment. It is a top view which shows the structure of the fastening tool of the telescopic support which concerns on embodiment. It is explanatory drawing which shows the use condition of the fastening tool of the telescopic support which concerns on embodiment. It is explanatory drawing which shows the use condition of the fastening tool of the telescopic support which concerns on embodiment. It is explanatory drawing which shows the use condition of the fastening tool of the telescopic support which concerns on embodiment. It is a perspective view which shows the example of a structure of the assembly shelf using the fastening tool of the telescopic support which concerns on embodiment. It is a perspective view which shows the fall prevention apparatus of the furniture using the fastening apparatus of the telescopic support which concerns on embodiment. It is explanatory drawing which shows the other usage of the fastening tool of the telescopic support which concerns on embodiment. It is explanatory drawing which shows the mounting structure of the conventional telescopic support | pillar.

Explanation of reference numerals

P1 Telescopic column P1a First pipe member P1b Second pipe member 1 Tightening device 2a First insertion member 2b Second insertion member 3a, 3b Pipe member 4 Bolt member 4a Screw portion 7 Rotating member for adjusting pressing force Reference Signs List 8 spring member 10 nut member 11 fixing screw member 12 abutment member 20 shelf member H insertion hole T assembly shelf C ceiling F floor surface S interval 60 furniture P3 pipe member P4 telescopic strut 100 engaging member 101 auxiliary strut 102 Fixture 103 Contact member

Claims (3)

A first pipe member, and a second pipe member having an outer diameter slightly smaller than the inner diameter of the first pipe member and slidably provided along an inner peripheral surface of the first pipe member. It is a fastening device of a telescoping strut that is erected in a state of being stretched between the ceiling and the floor surface,
First and second insertion members each having an insertion hole having a diameter that can be inserted into the second pipe member and cannot be inserted into the first pipe member;
A first insertion member, a bolt member that is inserted into a bolt insertion hole formed at a corresponding position of the second insertion member and supports the two at a predetermined interval;
It is screwed into the screw portion of the bolt member at the interval, and increases the pressing force against the second insertion member when rotated in one direction, and decreases the pressing force when rotated in the other direction. A rotating member for adjusting the pressing force;
A spring member interposed at the tip of the bolt member protruding from the second insertion member, and a nut member screwed to the tip of the bolt member so as to prevent the spring member from being removed;
The second insertion member is screwed into a screw hole formed in a direction perpendicular to the insertion hole at a side portion thereof, and a distal end portion thereof is pressed against an outer peripheral surface of the second pipe member, thereby forming the second pipe member. A screw member for fixing the insertion member of
Consisting of
The first insertion member is inserted into the second pipe member such that an edge of an insertion hole formed in the first insertion member contacts an end surface of the first pipe member, and a lower end of the first pipe member or With the upper end being on the floor and the upper end or lower end of the second pipe member being in contact with the ceiling, the second insertion member is fixed to the second pipe member by tightening the screw member,
The pressing force is applied to the second insertion member by rotation of the pressing force adjusting rotating member in a predetermined direction, and the pressing force causes the ends of the first and second pipe members to contact each other. A fastening tool for a telescopic strut, which is configured to be pressed against the floor surface and the ceiling that are in contact with each other.   The fastening device for a telescopic strut according to claim 1, wherein the rotating member for adjusting the pressing force and the screw member each include a gripping member having an uneven surface.   The first and second insertion members have a U-shape, and each of the two insertion holes is formed such that the center is located on the same straight line. Tightening device for telescopic struts.

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