JP7064258B1 - Telescopic handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail which can prevent the central maintenance mechanism from bending downward due to its own weight or the like, can withstand a load due to a strong wind or the like, and can absorb a shaking motion due to an earthquake. SOLUTION: One end of the skeleton is rotatably provided in the front-rear direction, and the other end is rotatably provided in the other skeleton in the front-rear direction. A plurality of support arm members 6 that can rotate in the front-rear direction between the skeleton and the other skeleton and that support the telescopic handrail body and that expand and contract in the left-right direction, and are provided between one skeleton and the other skeleton. It is composed of a central maintenance mechanism 7 that constantly positions the substantially central part of the telescopic handrail body at the substantially central part of the joint part, and when one skeleton and the other skeleton sway due to an earthquake and the width of the joint part fluctuates. Is a telescopic handrail that absorbs swaying movement by varying the overlapping width of one end handrail 8 and the other end handrail 9 and the intermediate handrail 10. [Selection diagram] Fig. 1

Description

The present invention relates to a telescopic handrail provided at a joint portion between skeletons.

Conventionally, as a telescopic handrail or a telescopic wall provided at a joint portion between joints, for example, "a pair of end walls provided so as to project toward the other skeleton on the left and right skeletons provided through the joint portion". And, the pair of end walls are slidably inserted into the pair, the tip of the pair of end walls is located in the center, and the outer end is located in the center of the pair of end walls. A pair of tubular movable walls and a pair of tubular movable walls whose outer ends into which the pair of tubular movable walls can slide and move are located approximately in the center of the pair of tubular movable walls. A tubular central wall that is about twice as long and both ends are attached to the pair of end walls, and when the joint is shaken to widen or narrow due to an earthquake, the central wall is used as the joint. A telescopic wall characterized in that it is located in the central portion of the joint and is composed of a wall telescopic device that slides and moves a pair of tubular movable walls to absorb the swaying movement "(Patent Document 1). ..

However, in such a telescopic handrail, the link mechanism of the wall telescopic device becomes long, its own weight is applied to the central portion of the link mechanism, and the central wall is supported on the upper surface of the end wall via the adjacent movable wall. However, there is a drawback that a part of the load of the central wall and the movable wall is applied to the central part of the link mechanism, and the central part of the link mechanism bends downward.

Further, when a strong wind blows due to a typhoon or the like, the link mechanism cannot withstand the load due to the strong wind and may be deformed or damaged.

Japanese Unexamined Patent Publication No. 2009-249886

In view of the above-mentioned conventional problems, the present invention can prevent the central maintenance mechanism from bending downward due to its own weight or the like, and can withstand a load due to a strong wind or the like, and can absorb the shaking motion due to an earthquake. The purpose is to provide a telescopic handrail that can be used.

The above and other objects and novel features of the invention will become more fully apparent when the following description is read in light of the accompanying drawings.
However, the drawings are for illustration purposes only and do not limit the technical scope of the present invention.

In order to achieve the above object, the telescopic handrail according to claim 1 of the present invention is provided at the joint portion between one skeleton and the other skeleton provided via the one skeleton and the joint portion. In the telescopic handrail, one end of the telescopic handrail is rotatably provided in the front-rear direction, and the other end is rotatably provided in the other skeleton in the front-rear direction. A plurality of support arm members that can rotate in the front-rear direction between one skeleton and the other skeleton and are provided to support the telescopic handrail body and expand and contract in the left-right direction, and the one skeleton and the above. The telescopic handrail body is provided between the other skeletons and is composed of a central maintenance mechanism that always positions the substantially central portion of the telescopic handrail body at the substantially central portion of the joint portion. One end handrail rotatably provided in a direction, the other end handrail having one end rotatably provided in the front-rear direction on the other skeleton, and the one end handrail and the end handrail. It is composed of an intermediate handrail provided between the one end handrail and an intermediate handrail that can slide in the left-right direction with respect to the end handrail, and the support arm member is the one end handrail and the other end. It is provided so as to penetrate the inside of the partial handrail and the intermediate handrail, and is substantially applied to the inner wall surface of at least one of the end handrails and the other end handrail or the intermediate handrail via a sliding member. When the one skeleton and the other skeleton sway due to an earthquake and the width of the joint portion fluctuates, the overlapping width of the one and other end handrails and the intermediate handrail fluctuates to absorb the swaying movement. It is characterized by doing.

The pair of upper and lower support arm members of the telescopic handrail according to claim 2 are attached so that the upper support arm member and the lower support arm member are reversed left and right, and are inside the telescopic handrail body. Is characterized in that a receiving portion that is substantially in contact with the outer peripheral portion of the support arm member is formed.

The central maintenance mechanism of the telescopic handrail according to claim 3 is the link member provided so as to penetrate the inside of the one end handrail, the other end handrail, and the intermediate handrail, or a pair facing each other. It is characterized by being one of the racks of.

As is clear from the above description, the following effects can be obtained in the present invention.
(1) In the invention according to claim 1, since the telescopic handrail main body is supported by the support arm member, the weight of the telescopic handrail provided at the joint portion between the skeletons may be concentrated on the central maintenance mechanism. not.
Therefore, it is possible to prevent the central maintenance mechanism from bending downward.
(2) Further, since the telescopic handrail main body is supported by the support arm member, even if a strong wind is received by a typhoon or the like, the load can be withstood without being damaged.
(3) For each of the inventions according to claim 2, the same effects as those in (1) and (2) above can be obtained, and the load can be more reliably received by the support arm member.
(4) The same effects as in (1) to (3) above can be obtained for each of the inventions according to claim 3.

1 to 7 are explanatory views showing a first embodiment of the present invention.
8 to 11 are explanatory views showing a second embodiment of the present invention.
The plan view of the telescopic handrail of the 1st Embodiment. The front view of the telescopic handrail of the first embodiment. Sectional drawing along line 3-3 of FIG. Plan view of the usage state. FIG. 4 is a cross-sectional view taken along the line 5-5 of FIG. Explanatory drawing of the state where the joint part became narrow due to the earthquake. Explanatory drawing of the state where the joint part became wide due to the earthquake. The front view of the telescopic handrail of the 2nd Embodiment. The front view of the telescopic handrail of the 2nd Embodiment. The plan view of the use state of the telescopic handrail of the 2nd Embodiment. FIG. 10 is a cross-sectional view taken along the line 11-11 of FIG.

Hereinafter, the present invention will be described in detail in accordance with the embodiments shown in the drawings for carrying out the present invention.
In the first embodiment for carrying out the present invention shown in FIGS. 1 to 7, 1 is a telescopic handrail installed between one skeleton 3 and the other skeleton 4 provided on the left and right via the joint portion 2. Yes (see, for example, FIG. 5).
The left-right direction is the left-right direction in FIG. 1, the front-back direction means the up-down direction in FIG. 1, and the up-down direction means the up-down direction in FIG.

Further, in the present invention, the skeleton refers to a building in which a joint plate such as a building, a road, a slab, or an elevator shaft can be installed, and the entrance / exit is not only an entrance / exit provided with a door or a door, but also a person, a vehicle, or the like. It also includes passages that can be passed.

The telescopic handrail 1 is provided at a joint portion between the skeletons. That is, for example, as shown in FIG. 5, one end is rotatably provided on one skeleton 3 in the front-rear direction, and the other end is rotatably provided on the other skeleton 4 in the front-rear direction to close the joint portion 2. A plurality of telescopic handrail bodies 5 that can rotate in the front-rear direction between the one-sided skeleton 3 and the other skeleton 4 and are provided to support the telescopic handrail body 5, up and down in this embodiment. A pair of support arm members 6 and a central maintenance mechanism 7 provided between the one skeleton 3 and the other skeleton 4 so that the substantially central portion of the telescopic handrail body 5 is always located at the substantially central portion of the joint portion. It is composed of.

The telescopic handrail body 5 is provided with one end handrail 8 having one end rotatable in the front-rear direction on one skeleton 3 and one end rotatable on the other skeleton 4. It is provided between the other end handrail 9 and the one end handrail 8 and the end handrail 9, and slides in the left-right direction with respect to the one end handrail 8 and the end handrail 9. It is composed of a possible intermediate handrail 10.

Further, the one end handrail 8 is provided in a box-shaped member having one end side rotatably provided on a rotation shaft 11 provided on one skeleton 3 in the front-rear direction and the side surface on the other end side is open. It is formed.

On the other hand, the other end handrail 9 is a box-shaped member whose one end side is rotatably provided on the rotation shaft 11 provided on the other skeleton 4 in the front-rear direction and the side surface on the other end side is open. It is formed.

Further, the intermediate handrail 10 is formed in a box-shaped member having both ends open, one end side is inserted inside the one end handrail 8, and the other end side is inserted inside the other handrail. .. Further, the central portion of the intermediate handrail 10 (the central portion of the telescopic handrail main body 5) is always located at the substantially central portion of the joint portion 2 by the central maintenance mechanism 7.

Further, the intermediate handrail 10 is formed in a shape that substantially abuts on the inner wall surface of one and the other end handrails 8 and 9, and in the present embodiment, the inside of the one and the other end handrails 8 and 9 is formed. The sliding member 12 provided in the above and the sliding member 12 provided on both end sides of the intermediate handrail 10 are in a substantially contacted state.

It should be noted that "substantially abutting" includes not only a state of close contact but also a state of approaching with a slight gap.
In the present embodiment, the upper surface and the lower surface are in contact with the inner wall surfaces on the upper and lower sides of the end handrails 8 and 9 via the sliding member 12 such as a roller, and the side surfaces in the front-rear direction have a slight gap. It is in a state of being close to each other.

The intermediate handrail 10 is formed so as to have a size larger than the maximum displacement amount of the joint portion 2 due to the earthquake, and the one and other end handrails 8 and 9 into which the intermediate handrail 10 enters are the joint portions 2 due to the earthquake. Even when the displacement amount is the maximum, the intermediate handrail 10 does not fall off, and even when the displacement amount of the joint portion 2 is the minimum, the intermediate handrail 10 and the intermediate handrail 10 are formed to the size of the collision city.

Inside the telescopic handrail main body 5, a support arm member 6 for reinforcing the telescopic handrail main body 5 and a central maintenance mechanism 7 for always positioning the central portion of the telescopic handrail main body 5 at a substantially central portion of the joint portion 2 are provided.

Further, the support arm member 6 has a square tubular shape whose protruding end portion is located near the substantially central portion of the joint portion, and in the present embodiment, the support arm main body 13 having a square shape of about 200 mm and the inside of the support arm main body 13. In this embodiment, one or more telescopic arms 14 that are movably inserted in the left-right direction are composed of one square tubular telescopic arm 14, and the telescopic arm 14 is attached to the support arm body 13 like a so-called swing rod. It is attached freely.

Further, one end of the support arm member 6 is rotatably attached to one of the skeletons 3 in the front-rear direction, and the inside of the one end handrail 8, the other end handrail 9, and the intermediate handrail 10. The other end is rotatably provided on the other skeleton 4 in the front-rear direction, and the inner wall surface of at least one of the one end handrail 8 and the other end handrail 9 or the intermediate handrail 10 is provided. Is substantially in contact with the sliding member 12 via the sliding member 12.
In the present embodiment, since the intermediate handrail 10 is formed inside the one end handrail 8 and the other end handrail 9, the support arm main body 13 of the support arm member 6 is included in the intermediate handrail 10. It is in contact with the wall surface via the sliding member 12.

In the present embodiment, the support arm main body 13 is in contact with the upper and lower and front and rear inner wall surfaces of the intermediate handrail 10 via the sliding member 12, but for example, the inner wall surface in the front-rear direction has a slight gap in normal times. Then, when the intermediate handrail 10 is slightly displaced due to a load such as a strong wind in an approaching state, the intermediate handrail 10 may be brought into contact with the sliding member 12 to receive the load.

Further, the upper and lower support arm members 6 are attached so that the upper support arm member 6 and the lower support arm member 6 are reversed left and right. When the support arm main body 13 of the upper support arm member 6 is attached to one skeleton 3 and the telescopic arm 14 is attached to the other skeleton 4, for example, it is attached so as to be reversed left and right. The support arm body 13 of the arm member 6 is attached to the other skeleton 4, and the telescopic arm 14 is attached to one skeleton 3. By mounting in this way, the support arm member 6 can efficiently receive the load of the telescopic handrail main body 5.

The intermediate handrail 10 of the telescopic handrail body 5 is formed with a rail-shaped receiving portion 15 that is substantially in contact with the outer peripheral portion (upper surface or / and lower surface) above or / below the support arm body 13 of the support arm member 6. The receiving portion 15 is substantially in contact with the upper surface and the lower surface of the support arm main body 13 of the support arm member 6 via the sliding member 12, and the reinforcing effect of the support arm member 6 against strong winds and the like can be obtained more efficiently. be able to. In the present embodiment, the U-shaped rail member is fixed to the inside of the intermediate handrail 10 to form the receiving portion 15.

When the telescopic handrail main body 5 is used such that the end handrails 8 and 9 enter the intermediate handrail 10, the receiving portion 15 may be provided on the end handrails 8 and 9.
Further, in the present embodiment, for example, referring to FIG. 5, the central maintenance mechanism 7 uses at least a pair of upper and lower racks and pinions, and one end of one rack 16 (left side in FIG. 5) is used. One end of the rack 176 (on the right side in FIG. 5) is rotatably attached to the other skeleton 4 so as to be rotatable in the front-rear direction. A pair of upper and lower pinions 18 and 19 that mesh with one rack 16 and the other rack 17 are provided so that the portions are located.

By the way, for example, at a portion substantially coaxial with the central axis of the pinion 18 (lower side in FIG. 5), the telescopic handrail main body 5 (intermediate handrail 10) is connected to a substantially central portion of the telescopic handrail main body 5 (intermediate handrail 10). A connecting member 19 is provided so that the substantially central portion of the handrail 10) is always located at the substantially central portion of the joint portion 2. By connecting the connecting member 19 to the substantially central portion of the telescopic handrail main body 5 (intermediate handrail 10), the substantially central portion of the telescopic handrail main body 5 (intermediate handrail 10) is always located at the substantially central portion of the joint portion. Therefore, both the pinion 19 (upper side in FIG. 5) and the pinion 18 have the same connection configuration. As described above, in the present embodiment, one rack 16, the other rack 17, and the pinion 18 are provided in a pair on the top and bottom.

When this telescopic handrail 1 is used, as shown in FIGS. 4 and 5, one end handrail 8 can be rotated in the front-rear direction on a rotation shaft 11 provided near the sleeve wall 20 of one skeleton 3. The other end handrail 8 is rotatably attached to the rotating shaft 11 provided near the sleeve wall 20 of the other skeleton 4. The support arm member 6 and the central maintenance mechanism 7 are also rotatably attached to the rotating shaft 11 in the front-rear direction. The rotating shaft 11 is provided so as to stand on the floor surface of one skeleton 3 or the other skeleton 4, but may be provided, for example, on the sleeve wall 20.

A pair of telescopic handrails 1 are provided in the front-rear direction, for example, and close the side surfaces (between the sleeve walls 20) between the joint portions 2. By the way, the floor surface of the joint portion 2 is closed by the floor joint plate 21 or the like. In the present embodiment, the floor joint plate 21 is a plate-shaped member and is supported by a guide rail 22 provided on the other skeleton 4 so that one end thereof can be slidably moved in the front-rear direction and the other end thereof. It is supported by the floor surface of one of the skeletons 3.
As for the floor joint plate 21, in addition to the above-mentioned ones, known floor joint plates 21 can be appropriately used.

Further, on the outside (for example, the front side) of the end handrails 8 and 9 and the intermediate handrail 10, for example, a thin decorative plate (not shown) is provided so that the frontage of the floor surface of one of the skeletons 3 is difficult to see. It may be provided. It is desirable that the decorative board is formed and provided so as to project downward from the end handrails 8 and 9 and the intermediate handrail 10 and cover the frontage. Further, for example, it is desirable that the side surface of one skeleton 3 in the front-rear direction or the outer wall surface of the other skeleton is provided so as to project toward the one skeleton so as not to interfere with the sliding of the end handrails 8 and 9 and the intermediate handrail 10.

When the left and right skeletons 3 and 4 sway in the left-right direction due to an earthquake and the joint portion 2 becomes narrower, as shown in FIG. 6, the center maintenance mechanism 7 and the support arm member 6 contract, and the end handrails 8 and 9 and the intermediate handrail 10 As the overlapping width increases, the floor joint plate 21 slides in the left-right direction to absorb the shaking motion caused by the earthquake.

When the skeletons 3 and 4 sway in the left-right direction due to an earthquake and the joint portion 2 becomes wider, as shown in FIG. 7, the central maintenance mechanism 7 and the support arm member 6 extend, and the end handrails 8 and 9 and the intermediate handrail 10 overlap. As the width becomes smaller, the floor joint plate 21 slides in the left-right direction to absorb the shaking motion caused by the earthquake.

Further, although not shown, when the left and right skeletons 3 and 4 sway in different front-rear directions, the telescopic handrail body 5, the support arm member 6, and the center maintenance mechanism 7 rotate around the rotation shaft 11 as a fulcrum to cause the swaying movement. Absorb.

[Different forms for carrying out the invention]
Next, different embodiments for carrying out the present invention shown in FIGS. 8 to 11 will be described. In the description of these different embodiments for carrying out the present invention, the same components as those of the first embodiment for carrying out the present invention are designated by the same reference numerals and overlapping description will be omitted.
In the telescopic handrail 1A of the second form for carrying out the present invention shown in FIGS. 8 to 11, the main difference from the first form for carrying out the present invention is that the pantograph-shaped link member 23 is provided. Such a central maintenance mechanism 7A is used in that the central maintenance mechanism 7A for connecting the central pivot portion 24 located at the substantially central portion of the link member 23 and the substantially central portion of the intermediate handrail 10 with the connecting member 19 is used. Even with the handrail 1A used, the same action and effect as in the first embodiment for carrying out the present invention can be obtained.

In the present embodiment, one link member 23 is used, but two or more link members 23 may be provided in the vertical direction to form the central maintenance mechanism 7A.
In the embodiment of the present invention, one skeleton of the corridor and the other skeleton are connected, but the place where the handrail of the present invention is installed is not limited, and one of the skeletons is connected through the joint. It may be attached in any way between the skeleton and the other skeleton.

Further, although a roller using a roller as a sliding member has been described, it can be used as a sliding member as long as it can smoothly move a slide, such as a bearing, a roller, a bearing, and a sliding material. Further, when such an active member is used, it is desirable to use a sliding member containing grease so that grease or the like can be automatically supplied.

The present invention is used in the industry of manufacturing telescopic handrails.

1, 1A: Telescopic handrail, 2: Joint,
3: One skeleton, 4: The other skeleton,
5: Telescopic handrail body, 6: Support arm member,
7: Central maintenance mechanism, 8: Handrail at one end,
9: The other end handrail, 10: Intermediate handrail,
11: Rotating shaft, 12: Sliding member,
13: Support arm body, 14: Telescopic arm,
15: Receiving part, 16: One rack,
17: The other rack, 18: Pinion,
19: Connection member, 20: Sleeve wall,
21: Floor joint plate, 22: Guide rail,
23: Link member, 24: Central pivot branch.

Claims (3)

One end is rotatably provided in the front-rear direction on one skeleton, and the other end is rotatably provided in the other skeleton in the front-back direction. A plurality of support arm members that can rotate in the front-rear direction and support the telescopic handrail body, and are provided between one skeleton and the other skeleton with a plurality of support arm members that expand and contract in the left-right direction. It is composed of a central maintenance mechanism that always positions the approximately central part in the approximately central part of the joint.
The telescopic handrail body consists of one end handrail whose one end is rotatably provided in the front-rear direction and the other end handrail whose one end is rotatably provided in the other skeleton. , It is provided between one end handrail and the end handrail, and is composed of one end handrail and an intermediate handrail that can slide in the left-right direction with respect to the end handrail.
The support arm member is provided so as to penetrate the inside of one end handrail, the other end handrail and the intermediate handrail, and is either at least one end handrail and the other end handrail or the intermediate handrail. Approximately abuts on the inner wall surface via a sliding member,
When one skeleton and the other skeleton sway due to an earthquake and the width of the joint part fluctuates, the overlapping width of one and the other end handrail and the intermediate handrail fluctuates to absorb the swaying movement. A pair of upper and lower support arm members are provided, and the upper support arm member and the lower support arm member are attached so as to be reversed left and right. Inside the telescopic handrail body, the outer periphery of the support arm member is provided. The telescopic handrail according to claim 1, wherein a receiving portion that is substantially in contact with the portion is formed. The central maintenance mechanism is characterized by either a link member or a pair of opposing racks provided to penetrate the interior of the one end handrail, the other end handrail and the intermediate handrail. The telescopic handrail according to claim 1 or 2.

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