JP2018035526A - Telescopic motion handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telescopic motion handrail that enables stable and safe length adjustment work.SOLUTION: A telescopic motion handrail 10 for connection comprises a thick handrail member 11, a thin handrail member 12 inserted in a hollow part 11B of the thick handrail member 11 to be slidable, and a damper member 20 mounted on a tip 12A of the thin handrail member 12. The damper member 20 is locked to the thin handrail member 12 by locking of a projection 28 to a locking hole 15 provided in the thin handrail member 12. A large diameter part 26 of the damper member 20 is brought into contact with an inner peripheral surface 11C of the thick handrail member 11 in a state of being pressed against the inner peripheral surface by spring force of a coil spring 25, so that with respect to telescopic motion of the telescopic motion handrail 10 for connection, proper resistance can be provided by friction force due to the contact between the large diameter part 26 and the inner peripheral surface 11C.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a telescopic handrail for constituting a handrail.

  2. Description of the Related Art Conventionally, as handrails for care mainly for handicapped persons and elderly people, for example, telescopic handrails configured using telescopic members made of a large diameter pipe and a small diameter pipe are known. For example, in Patent Document 1 (Japanese Patent Laid-Open No. 2001-107530), in a handrail composed of a telescopic handrail main body, a detachable function tool 6 is provided at one end of the telescopic handrail main body, so that the telescopic handrail main body is provided. The invention which prevented the rapid contraction of this is disclosed. Moreover, in patent document 2 (Unexamined-Japanese-Patent No. 2007-111429), in the handrail for bathtubs, the small diameter pipe 9 is locked and hold | maintained to the large diameter pipe 7 in the telescopic movable stick member 5 so that a vertical movement is impossible. The structure provided with the locking tool 13 for this is disclosed.

  By constructing handrails by combining such telescopic handrails in the vertical and horizontal directions, it is possible to install handrails without leaving traces of installation in buildings, etc., and flexibly support installation locations of various sizes can do.

JP 2001-107530 A JP2007-111429

  By the way, when assembling such a handrail, it is necessary to extend and retract the telescopic handrail and adjust its length appropriately, and then fix the length. However, during such a length adjustment operation, the expansion and contraction member can freely expand and contract, so that the adjustment operation is difficult, and there is a possibility that the small diameter pipe may fall off from the large diameter pipe constituting the expansion and contraction member. In addition, when the locking device 13 as in Patent Document 2 is provided, the connecting handrail has too much resistance (at the time of insertion), and there is a problem that the frictional force is reduced due to deterioration and wear.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a telescopic handrail capable of performing a length adjustment operation stably and safely.

  The present invention includes a thick handrail member having a hollow portion, a thin handrail member that is slidably inserted from one end into the hollow portion of the thick handrail member, and the thin handrail. A telescopic handrail comprising a damper member provided at the one end of the member, wherein the damper member includes an abutting portion that abuts against an inner peripheral surface of the large-diameter handrail member, and the small-diameter handrail A damper member side locking portion that is locked to a handrail member side locking portion provided on the sliding member, and a biasing means that biases the contact portion toward the inner peripheral surface of the large-diameter handrail member. And.

  The damper member includes a plurality of divided members divided along the longitudinal direction of the telescopic handrail, and the urging means is disposed between the plurality of divided members, and the plurality of divided members are mutually connected. You may make it urge in the direction to separate.

  The small-diameter handrail member includes a locking hole as the handrail member side locking portion, and the damper member includes a protruding portion that is locked to the locking hole as the damper member side locking portion. Also good.

  According to the present invention, the damper member (for example, the damper member 20) is provided between the large-diameter handrail member (for example, the large-diameter handrail member 11) and the small-diameter handrail member (for example, the small-diameter handrail member 12), The damper member is engaged with the small-diameter handrail member by the engagement of the damper member side locking portion (for example, the protrusion 28 and the spring pin 32) and the handrail member side locking portion (for example, the locking hole 15 and the locking hole 33). In addition to being in a stopped state, the contact portion (for example, the large diameter portion 26) of the damper member is biased with respect to the inner peripheral surface (for example, the inner peripheral surface 11C) of the thick handrail member (for example, the coil spring 25). Therefore, with respect to the sliding of the small-diameter handrail member with respect to the large-diameter handrail member (extension / contraction of the telescopic handrail), the contact portion of the damper member and the large-diameter hand Moderate due to friction caused by contact of inner surface of sliding member Resistance is given. In this case, the resistance to sliding (extension / contraction) can be appropriately set by adjusting the urging force of the urging means. Therefore, the expansion / contraction (length adjustment) of the telescopic handrail can be performed stably, and during the adjustment work, sudden expansion and contraction of the telescopic handrail and the large-diameter handrail member 11 of the small-diameter handrail member can be performed. Can be prevented appropriately, and work safety can be secured.

  Even if there is a slight dimensional error between the dimension of the hollow portion of the large-diameter handrail member and the outer diameter dimension of the small-diameter handrail member (the outer diameter dimension of the small-diameter handrail member is too small), The dimensional error is absorbed by the presence of the damper member, and an effect that the small-diameter handrail member is stably held with respect to the large-diameter handrail member is also obtained. That is, even if there is variation in the inner diameter of the large-diameter handrail member or the size of the divided member (for example, the large diameter portion 26 of the divided member 21), the biasing means pushes the divided member, so that the dimensional error is absorbed, Further, the necessary frictional force can be obtained even if the divided member is worn.

  If the damper member is composed of a plurality of divided members (for example, a pair of divided members 21), the plurality of divided members approach each other against the biasing force when the damper member is inserted into the outermost handrail member. Since the outer diameter of the insertion part of the damper member becomes small, the damper member can be easily inserted into the small-diameter handrail member. In addition, with a simple configuration, the abutting portion of each divided member can be pressed with an appropriate urging force against the inner peripheral surface of the large-diameter handrail member by the urging means.

  In addition, if the protrusion (for example, the protrusion 28) is provided as the damper side locking portion and the locking hole (for example, the locking hole 15) is provided as the handrail member side locking portion, the damper member is Since it is securely fixed to the small-diameter handrail member by being locked in the locking hole, it is possible to reliably prevent it from coming out with a small number of parts.

The top view which shows the whole structure of the assembly structure comprised using the telescopic handrail in 1st Embodiment of this invention. Sectional drawing which shows the whole structure of a telescopic handrail. Sectional drawing which shows a part of telescopic handrail. The top view which shows the edge part of a damper member and a small diameter handrail member. The side view which shows the edge part of a damper member and a small diameter handrail member. Sectional drawing which shows a part of expansion-contraction handrail in 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  In FIG. 1, the whole structure of the assembly structure 1 comprised using the expansion-contraction handrail 10 for a connection in embodiment of this invention is shown. As shown in the drawing, the assembly structure 1 includes a support telescopic handrail 2 that is a plurality of longitudinal rail members and a connecting telescopic handrail 10 that is a plurality of lateral rail members. In the present embodiment, the coupling telescopic handrail 10 and the support telescopic handrail 2 are configured by the telescopic handrail of the present invention.

  The telescopic handrail 2 for the support is a bar-like member arranged extending in the vertical direction. The telescopic handrail 2 for the pillar includes a large-diameter handrail member 2B having a hollow portion, a small-diameter handrail member 2A that is slidably inserted from the lower end portion into the hollow portion of the large-diameter handrail member 2B, and a small diameter A damper member (not shown) provided at the lower end of the handrail member 2A and a fixing member 2C for fixing the small-diameter handrail member 2A with an appropriate length are provided. The telescopic handrail 2 for the column is fixed to the ceiling 4 via the upper fixture 3 at the upper end and to the floor 6 via the lower fixture 5 at the lower end. 6 is installed in a stretched state. A damper member is attached to the opening at the lower end of the small-diameter handrail member 2A.

  The telescopic handrail 10 for connection (lateral rail member) is disposed between the adjacent telescopic handrails 2 for supporting columns so as to extend in the horizontal direction with the length (stretching amount) adjusted. Both ends of the connecting telescopic handrail 10 are attached to the support telescopic handrail 2 via the joint 7. Thereby, the adjacent telescopic handrail 2 for support | pillar is in the state connected with the expansion telescopic handrail 10 for connection.

  As shown in FIG. 2, the connecting telescopic handrail 10 includes a pipe (cylindrical) large-diameter handrail member 11 and a pipe (cylindrical) thin-diameter handrail member 12. The outer diameter of the small diameter handrail member 12 is slightly smaller than the inner diameter of the large diameter handrail member 11. The small-diameter handrail member 12 is introduced into the opening of the rear end portion 11A of the large-diameter handrail member 11 from the front end portion 12A side, and is slidably inserted into the hollow portion 11B of the large-diameter handrail member 11. . With such a configuration, by changing the insertion amount of the small-diameter handrail member 12 with respect to the large-diameter handrail member 11, the entire length of the connecting telescopic handrail 10 can be adjusted.

  The adjusted length of the connecting telescopic handrail 10 (the insertion position of the thin handrail member 12 with respect to the large handrail member 11) is securely fixed by a fixing means (not shown) such as a screw. You may do it.

  A joint portion 13 is provided on the front end side of the large-diameter handrail member 11, and a joint portion 14 is provided on the rear end side of the small-diameter handrail member 12. Thereby, the extension handrail 10 for connection is attached with respect to the joint 7 in the joint parts 13 and 14 of both sides.

  A damper member 20 is attached to the opening 12B of the front end portion 12A of the small-diameter handrail member 12. As will be described in detail later, it acts to give an appropriate resistance (astringency) to the sliding of the small-diameter handrail member 12 with respect to the large-diameter handrail member 11 (extension and contraction of the connecting telescopic handrail 10).

  As shown in detail in FIGS. 3 to 5, the damper member 20 is configured by connecting a pair of split members 21 via a connecting portion 22 having flexibility. The pair of split members 21 are members having the same dimensions and the same shape, and are disposed with the inward surfaces 23 facing each other.

  The inwardly facing surface 12 of each divided member 21 is provided with spring seat portions 24 that are circular recesses, and both end portions of a coil spring 25 that is a compression spring are attached to these spring seat portions 24. Yes. Thereby, the coil spring 25 acts as a biasing means that biases the pair of split members 21 so as to be separated from each other.

  A large-diameter portion 26 having a substantially semi-cylindrical shape and a small-diameter portion 27 having a substantially semi-cylindrical shape are provided on the outward surface of each divided member 21. The large-diameter portion 26 and the small-diameter portion 27 have dimensions corresponding to the inner diameters of the large-diameter handrail member 11 and the small-diameter handrail member 12, respectively, and the split member 21 is biased by the coil spring 25. Each of them is in contact with the inner peripheral surface 11C of the large-diameter handrail member 11 and the inner peripheral surface 12C of the small-diameter handrail member 12 in a pressed state.

  A substantially cylindrical projection 28 is provided on the outward surface of each divided member 21. On the other hand, a pair of locking holes 15 are formed in the vicinity of the front end portion 12 </ b> A of the small-diameter handrail member 12 at a position corresponding to the protruding portion 28 of the split member 21, and the inner periphery of the small-diameter handrail member 12. It penetrates from the surface toward the outer peripheral surface. The locking hole 15 is a hole in which the protruding portion 28 of the dividing member 21 is locked. When the dividing member 21 is biased by the coil spring 25, the protruding portion 28 is engaged with the small diameter handrail member 12. It is held in a state of being locked in the stop hole 15. Thereby, the division member 21 is reliably fixed with respect to the small diameter handrail member 12.

  When the damper member 20 is mounted on the small-diameter handrail member 12, the rear end portion of the large-diameter portion 26 abuts on the front end portion 12A of the small-diameter handrail member 12, so that the damper member 20 is thin as a whole. It does not enter the radial handrail member 12.

  With such a configuration, the damper member 20 is fixed to the small-diameter handrail member 12 by the locking of the protrusion 28 to the locking hole 15, while the large-diameter handrail member 11 is It abuts against the inner peripheral surface 11C while being urged by the coil spring 25. Thereby, for the sliding of the small-diameter handrail member 12 with respect to the large-diameter handrail member 11, due to the friction between the large-diameter portion 26 of the damper member 20 and the inner peripheral surface 11C of the large-diameter handrail member 11, Appropriate resistance is imparted. In this case, the resistance to sliding (extension / contraction) can be appropriately set by adjusting the spring force of the coil spring 25. Therefore, the expansion / contraction (length adjustment) of the connecting telescopic handrail 10 can be stably performed. During the adjustment operation, the connecting telescopic handrail 10 suddenly expands and is not intended, and the small-diameter handrail member 12 Dropping off from the thick handrail member 11 can be prevented appropriately, and work safety can be ensured.

  Even if there is a slight dimensional error between the inner diameter of the large-diameter handrail member 11 and the outer diameter of the small-diameter handrail member 12 (the outer diameter of the small-diameter handrail member 12 is too small), It is absorbed by the presence of the damper member 20, and the secondary effect that the small-diameter handrail member 12 is stably held with respect to the large-diameter handrail member 11 is also obtained. That is, even if there is variation in the inner diameter of the large-diameter handrail member 11 and the size of the split member 21 (large diameter portion 26), the coil spring 25 pushes the split member 21, so that the dimensional error is absorbed. Even if the split member 21 (large diameter portion 26) is worn, a necessary frictional force can be obtained.

  FIG. 6 shows a part of the telescopic handrail according to the second embodiment of the present invention. In the present embodiment, only a part of the first embodiment is changed. Therefore, the same members as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As illustrated, in the present embodiment, a damper member 30 is used instead of the damper member 20 in the first embodiment. Each of the divided members 21 of the damper member 30 has a pin hole 31 penetrating at a position where the protrusion 28 is provided in the damper member 20 instead of having the protrusion 28 in the damper member 20. Spring pins 32 are inserted into these pin holes 31. In addition, the small diameter handrail member 12 is formed with a locking hole 33 having a size corresponding to the diameter of the spring pin 32 instead of the locking hole 15 in the first embodiment. Both ends are inserted into the locking holes 33 and locked.

  With such a configuration, the damper member 30 is attached to the small-diameter handrail member 12 so as not to drop off. As described above, the damper member 30 may be locked to the small-diameter handrail member 12 with a pin, or may be screwed with at least one of the locking holes 33 as a screw hole. .

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range described in the claim, an appropriate change is possible. For example, in the above embodiment, the coil spring 25 that is a compression spring is used as the urging means, but the form of the urging means is such that the contact portion (large diameter portion 26) of the damper member is the large diameter handrail member 11. If it urges | biass toward 11 C of inner peripheral surfaces, it will not specifically limit. For example, as a biasing means, a spring having a form other than a coil spring such as a leaf spring may be used, or an elastic body such as rubber may be used.

  Moreover, in the said embodiment, although the projection part 28 was used as the damper member side latching | locking part and the latching hole 15 was used as the handrail member side latching | locking part, a damper member side latching | locking part and a handrail member side latching | locking part are used. Is not limited to such a form, and any form can be used as long as the damper member 20 and the small-diameter handrail member 12 are locked. For example, a locking hole that is not a through-hole (a recess formed in the inner peripheral surface 12C of the small-diameter handrail member 12) may be used as the handrail member side locking portion. It is also possible to provide a convex portion on the inner peripheral surface 12 </ b> C of the small-diameter handrail member 12 and be engaged with a concave portion provided in the damper member 20.

  Moreover, in the said embodiment, although the damper member 20 was comprised from a pair of division member 21, this invention is not restricted to such a form, A damper member may be comprised from three or more division members. Is possible.

  Moreover, in the said embodiment, although the thin diameter handrail member 12 was made into the pipe-shaped member, this invention is not restricted to such a form, The damper member 20 is mounted | worn with a small diameter handrail member. For example, a solid bar shape may be used as long as the opening 12C is provided.

  The present invention can be used for handrails attached to various buildings and the like.

DESCRIPTION OF SYMBOLS 1 Assembling structure 2 Telescopic handrail for support | pillar 3 Upper side fixing member 4 Ceiling 5 Lower side fixing member 6 Floor 7 Joint 10 Telescopic handrail 11 for connection Large diameter handrail member 11A Rear end part 11B Hollow part 11C Inner peripheral surface 12 Thin Diameter handrail member 12A Front end portion 12B Opening portion 12C Inner peripheral surface 13 Joint portion 14 Joint portion 15 Locking hole 20 Damper member 21 Split member 22 Connecting member 23 Inward surface 24 Spring seat portion 25 Coil spring 26 Large diameter portion 27 Small diameter Portion 28 Protrusion 30 Damper member 31 Pin hole 32 Spring pin 33 Locking hole

Claims (3)

A thick handrail member having a hollow portion, a thin handrail member that is slidably inserted from one end into the hollow portion of the thick handrail member, and the one of the thin handrail members A telescopic handrail provided with a damper member provided at the end of
The damper member includes a contact portion that contacts an inner peripheral surface of the large-diameter handrail member, and a damper member-side engagement that is engaged with a handrail member-side engagement portion provided on the small-diameter handrail member. A telescopic handrail comprising a portion and an urging means for urging the abutting portion toward an inner peripheral surface of the large-diameter handrail member. The telescopic handrail according to claim 1,
The damper member includes a plurality of divided members divided along the longitudinal direction of the telescopic handrail, and the urging means is disposed between the plurality of divided members, and the plurality of divided members are mutually connected. Telescopic handrail that urges in the direction of separation. In the telescopic handrail according to claim 1 or 2,
The small-diameter handrail member includes a locking hole as the handrail member-side locking portion, and the damper member includes a protrusion that is locked to the locking hole as the damper member-side locking portion. Telescopic handrail.

Images