JP4631638B2 - Stair equipment - Google Patents

Description

  The present invention relates to a staircase device in which handrails are provided in the vertical direction at corners of surrounding stairs.

  Conventionally, a handrail is attached to the inner wall of the stairs along the stairs so that the stairs can be smoothly moved up and down.

  In addition, it is known from Patent Document 1 that a handrail including a corner portion is continuously attached to a surrounding staircase.

  In the above-mentioned Patent Document 1, an inclined handrail bar positioned on the upper side of the corner portion of the surrounding staircase and an inclined handrail bar positioned on the lower side are continuously connected by the corner handrail bar. .

  By the way, when going up and down the stairs, the corner part of the surrounding stairs is a place to turn up and down a plurality of step boards centering around the corner, and the step board has an acute angle near the inside corner part. Since the corner is located, the area where the foot is stepped on is small and it is difficult to go up and down.

  In this way, it is necessary to go up and down the corners of a plurality of steps at the corner portion of the turning staircase while grasping the handrail of the corner portion and turning around the handrail (while changing the direction).

  However, in the conventional example shown in Patent Document 1, if a corner portion of a corner handrail is gripped by hand, and a plurality of steps are moved up and down around the gripped portion, the corner hand is changed. Since the level of the corner part in the sliding is constant, the position of the body changes greatly in the vertical direction because it changes direction while going up and down the multiple steps, although the position grasped by hand does not change, You have to go up and down the corners with an unnatural and unstable posture. Also, it cannot cope with height differences such as children and adults.

  Therefore, the present inventor considered providing a handrail bar in the vertical direction at the corner portion of the rotating staircase in the process leading to the present invention.

  Then, when you change the direction while climbing up and down the multi-step step board by grasping the handrail bar provided at the corner part of the surrounding staircase with your hand, the direction change in the corner part, that is, the corner part The center position for this purpose does not change, but it is possible to smoothly change the direction while shifting the position at which the handrail bar is gripped in the vertical direction in accordance with ascending and descending the plurality of steps.

  However, it has been found that when a handrail bar is provided in the vertical direction at the corner portion of the staircase as described above, there is a problem that clothes and feet are caught on the lower end of the handrail bar.

In particular, if there is a gap between the lower end of the handrail bar and the treadle, there is a possibility that the foot will be caught in this gap, and smooth ascending and descending cannot be performed.
JP 2000-257232 A

  The present invention was invented in view of the above-mentioned conventional problems, and a person with different height can smoothly go up and down by grabbing the handrail bar with the hand at the corner of the surrounding stairs, and the lower end of the handrail bar. It is an object of the present invention to provide a safe stairway device in which clothes and legs are not caught on the floor, and the toes are not caught between the lower end of the handrail bar and the upper surface of the tread.

In order to solve the above-mentioned problem, the stair device according to the present invention is a stair device in which the lower end portion of the handrail rod 2 provided in the vertical direction at the inner corner portion of the staircase 1 is held on the step board 3 of the staircase 1. In addition, the lower end of the handrail rod 2 is attached to the front end of the support bracket 4 and the end of the corner wall 5 formed inside the staircase 1 around the fixed portion 8 provided at the rear end of the support bracket 4. The rear end portion of the support bracket 4 is brought into contact with the other surface of the protruding corner portion and the positioning projection portion 9 protruding from the end portion of the fixing portion 8 is brought into contact with and hooked to the other surface of the protruding corner portion. It fixes to the edge part of the wall 5 , and the said support bracket 4 is mounted on the tread board 3, and the handrail bar 2 is formed so that a clearance gap may not be formed between the lower end of the handrail bar 2 and the upper surface of the tread board 3. The lower end of the base plate is mounted on the tread 3 via the support bracket 4. It is an.

With such a configuration, when changing the direction of the corner portion of the rotating staircase 1 while moving up and down, the handrail rod 2 provided in the vertical direction at the corner portion of the rotating staircase 1 is grasped by hand. When turning up and down the plurality of step boards 3 at the corners of the surrounding stairs centering around 2, the position of the handrail bar 2 can be moved up and down while changing the direction by going up and down the step board 3; The corner portion can be smoothly and stably moved up and down to change the direction, and even a person with a different height can smoothly and stably change the direction while going up and down the corner portion. Further, since the lower end portion of the handrail rod 2 is held on the step board 3 of the staircase 1, clothes and feet are caught on the lower end of the handrail rod 2, and the lower end of the handrail rod 2 and the upper surface of the step plate 3 are It is possible to change the direction while safely going up and down the corners without getting your feet caught in between. Further, since the rear end portion of the support bracket 4 for attaching the lower end portion of the handrail rod 2 to the front end portion is fixed to the end portion of the corner wall 5 of the staircase 1 and the support bracket 4 is mounted on the tread plate 3, The handrail bar 2 can be securely attached to the inner corner portion of the stairs 1 in the vertical direction, and the load applied to the handrail bar 2 can be supported by the corner wall 5 and the tread plate 3.

The present invention, when grabbing the handrail bar provided in the vertical direction at the corner portion of the surrounding stairs with the hand, when turning around the plurality of treads at the corner portion of the surrounding stairs while turning around the handrail rod, While shifting the position of the handrail stick up and down, you can change the direction by going up and down the tread, smoothly and stably going up and down the corner part, and people with different height In the same way, the direction can be changed smoothly and stably while going up and down the corner, and the lower end of the handrail bar is held on the step board so that clothes and feet can be It is possible to change the direction while safely going up and down the corner portion without being caught on the foot or being caught between the lower end of the handrail bar and the upper surface of the tread. In addition, the handrail bar can be securely attached to the inner corner of the surrounding staircase in the vertical direction, and the load applied to the handrail bar can be supported by the corner wall and the tread board.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  1 to 4 show an embodiment of the present invention, and FIGS. 5 to 8 show another embodiment. In the embodiment shown in the accompanying drawings, an example of a surrounding staircase that is folded back in a U-shape as the surrounding staircase 1 is shown. A partition wall 7 is provided inside the surrounding staircase 1, and a portion corresponding to the inner corner portion of the surrounding staircase 1 at the end of the partition wall 7 is a corner wall 5.

  A vertically long handrail bar 2 is vertically attached to a corner portion (inner corner portion) of the rotating staircase 1.

  In the embodiment shown in FIGS. 1 to 4, the front end portion of the support bracket 4 is attached to the upper and lower end portions of the handrail rod 2, and the rear end portions of the upper and lower support brackets 4 are attached to the end portions of the corner wall 5. Thus, the handrail rod 2 is rotated and attached to the corner portion of the staircase 1 in the vertical direction. In the embodiment shown in the attached drawings, the illustration of the attachment portion of the upper end portion of the handrail bar 2 to the corner wall 5 by the support bracket 4 is omitted.

  Here, the lower end portion of the handrail rod 2 is placed and held on the tread 3 at the corner portion of the turning staircase 1. In the embodiment shown in FIGS. The lower support bracket 4 attached and supported is placed on the corner of the upper surface of the step board 3 on the corner wall 5 side, so that the lower end of the handrail bar 2 is placed on the step board 3 via the support bracket 4. Has been established. In this way, by placing the lower end portion of the handrail rod 2 on the tread plate 3 via the support bracket 4, a gap is formed between the lower end of the handrail rod 2 and the upper surface of the tread plate 3. The clothes and the foot tip portion are not caught on the lower end of the handrail, and the foot tip is not sandwiched between the lower end of the handrail bar 2 and the upper surface of the tread board 3. Further, when the support bracket 4 is mounted on the tread plate 3 as in the present embodiment, a gap is not formed between the lower support bracket 4 protruding from the corner wall 5 and the top surface of the tread plate 3, and the support bracket 4 and the tread plate 3 It is possible to prevent the tip portion from being caught in the gap between the two.

  Of course, in the case where the lower end portion of the handrail rod 2 is attached to the corner wall 5 by the support bracket 4, the lower end of the handrail rod 2 may be directly mounted on the tread plate 3, or at the end portion of the handrail rod 2. The handrail bar 2 may be placed on the tread plate 3 via the end cap by fitting the end cap and placing the end cap on the tread board 3 (the end of the handrail bar 2). When the end cap is fitted on the portion, the end cap portion may be attached to the support bracket 4). Also in this case, it is preferable that the lower support bracket 4 protruding from the corner wall 5 is mounted on the tread plate 3 so as not to sandwich the foot portion in the gap between the upper surface of the tread plate 3 and the support bracket 4.

For example, as shown in FIG. 4, the support bracket 4 is provided with a positioning projection 9 protruding from one end portion of the fixing portion 8 at the rear end portion and a handrail rod mounting portion 10 provided at the front end portion. A fixing portion 8 of the support bracket 4 is fixed to a protruding corner portion of an end portion of the corner wall 5 which is an inner inner corner portion by a fixing tool such as a screw. In this case, with the support bracket 4 placed on the top surface of the tread 3, the fixed portion 8 is applied to one of the two adjacent surfaces via the protruding corner portion of the corner wall 5, and the positioning projection 9 is applied to the other surface. The support bracket 4 is positioned at the corner of the corner wall 5 by being brought into contact and hooked, and in this state, the support bracket 4 is fixed to the corner wall 5 by the fixing tool. By sticking this way the support bracket 4 is positioned in the corner wall 5, the purpose of the plurality of step boards 3 is located in the corner portion is projected in a predetermined direction from the external corner portion of the corner wall 5 of the support bracket 4 It can be attached so as to be accurately placed at a predetermined position on the upper surface of the tread plate 3.

Reference examples are shown in FIGS. In this reference example , the lower end portion of the handrail bar 2 is held by a holding portion 6 provided on the tread plate 3. That is, in this reference example , the holding portion 6 is configured by providing a fixing hole in the vicinity of the end portion on the corner wall 5 side of an arbitrary step plate 3 among the plurality of step plates 3 positioned at the corner portion of the surrounding staircase 1. The lower end portion of the handrail rod 2 is fitted and fixed in the fixing hole constituting the holding portion 6, so that the lower end portion of the handrail rod 2 is held on the step board 3 of the staircase 1. In this reference example , the upper end portion of the handrail rod 2 is not shown, but it is fixed to the corner wall 5 by the support bracket 4 as in the above-described embodiment, or is fixed to the ceiling portion of the rotating staircase 1. Or In this reference example , clothes and toe portions are not caught or pinched by the lower end portion of the handrail rod 2, and there is no lower support bracket for attaching the lower end portion of the handrail rod 2 to the corner wall 5. Therefore, the toe portion is not sandwiched in the gap between the upper surface of the tread plate 3 and the lower support bracket, or the toe portion is not caught by the lower support bracket.

  In the above example, the holding plate 6 is configured by providing a fixing hole in the tread plate 3, but the lower end of the handrail bar 2 is fixed to the fitting hole of the receiving device by fixing the receiving device having a fitting hole upward on the tread plate 3. The part may be fitted and fixed.

In any of the above SL embodiments and reference examples also, since it is configured to hold the lower end of the handrail rods 2 provided in the vertical direction at the corner portion of around stairs 1 onto the step board 3 around stairs 1, around When changing the direction of the corner of the staircase 1 while moving up and down, the handrail rod 2 provided in the vertical direction is held by the hand at the corner portion of the staircase 1 and the corner portion of the staircase around the handrail rod 2 is centered. The direction can be changed by going up and down the plurality of treads 3. At this time, while shifting the position of the hand holding the handrail rod 2 in the vertical direction, the tread plate 3 can be moved up and down, the direction can be changed smoothly and the corner portion can be moved up and down smoothly, and the direction can be changed. Even people with different heights can turn smoothly and stably while going up and down the corner.

In the embodiment and the reference example shown in the accompanying drawings, an example of a turning staircase that is folded back in a U-shape is shown as the turning staircase 1, but a turning staircase 1 that bends 90 ° may be used.

It is a top view of one embodiment of the present invention. It is the schematic seen from the A direction of FIG. It is the schematic seen from the B direction of FIG. It is a principal part perspective view same as the above. It is a top view of a reference example . It is the schematic seen from the A direction of FIG. It is the schematic seen from the B direction of FIG. It is a principal part perspective view same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Staircase 2 Handrail stick 3 Footboard 4 Support bracket 5 Corner wall 6 Holding part

Claims (1)

A stair device that holds the lower end of a handrail bar provided in the vertical direction at the inner corner of a rotating staircase on the stepping plate of the staircase, and attaches and supports the lower end of the handrail bar to the front end of the support bracket. The fixed part provided at the rear end of the bracket is turned to hit one surface of the corner of the corner wall formed inside the staircase, and protrudes from the end of the fixed part to the other surface of the projected corner The rear end portion of the support bracket is fixed to the end portion of the corner wall by abutting and hooking the positioning protrusion , and the support bracket is placed on the tread plate, and the lower end of the handrail bar A stairway device characterized in that a lower end portion of a handrail bar is placed on a tread plate via a support bracket so that no gap is formed between the upper surface of the tread plate.

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