JP2017150260A - Handrail for sliding door, sliding door apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail for a sliding door and a sliding door apparatus, in which, when a sliding door in a full close state or in a full open state is moved to opening or closing direction, a rotary roller rotatably attached onto a tip of a handrail bar may smoothly move in longitudinal direction on predetermined position in width direction of a guide rail without making any sliding, contacting noise.SOLUTION: A guide projecting part 19a is arranged on a traveling surface of a traveling surface member 19 so that a rotary roller 7 rotatably attached onto a bracket 6 at an end part of a handrail bar is rotated and moved along longitudinal direction on predetermined position in width direction of traveling surface of a guide rail 8 when the handrail bar whose one end or a part near the one end is rotatably supported onto a sliding door by a hinge mechanism moves the sliding door in opening and closing direction, and a rotary roller guide mechanism comprising a recessed part 7d having a groove shape into which the guide projecting part 19a is inserted is arranged on the rotary roller 7.SELECTED DRAWING: Figure 3

Description

  The present invention is mounted facing the front of the sliding door and rotates in conjunction with the closing operation of the sliding door, and in a fully closed state, becomes a handrail while maintaining a substantially horizontal state, and rotates in conjunction with the opening operation of the sliding door, The present invention relates to an improvement in a sliding door handrail that is inclined or vertical at a predetermined angle in a fully open state and a sliding door device to which the sliding door handrail is attached.

  Handrails that can be easily gripped are necessary for the elderly and physically handicapped to move (walk) safely. Therefore, it is preferable that handrails are provided on indoor and outdoor stairs, handrails are further provided on indoor corridors and indoor walls, and the handrails are continuous without breaks. However, there are many cases where a handrail is not provided at the entrance of the room facing the corridor because it interferes with the entrance of people. For the elderly and the physically handicapped, when moving across the entrance of a room, it cannot be easily moved without a handrail. Therefore, it is necessary to provide a handrail on the front of the sliding door provided at the entrance of the room so that an elderly person or a handicapped person can easily walk while holding the handrail. Conventionally, as a handrail attached to the front surface of this type of sliding door, there are those disclosed in the following Patent Documents 1 and 2 related to the present applicant.

JP 2011-231513 A JP 2013-256808 A

  FIG. 1 is a diagram illustrating a configuration of a sliding door device including a sliding door handrail disclosed in Patent Document 2. In FIG. As shown in FIG. 1, the sliding door device includes a sliding door 1, a hinge mechanism 5, a handrail bar 4, and a rotating roller 7. In the state where the sliding door 1 is closed (the state where the left side 1b of the sliding door 1 is in contact with the side surface 2a of the column 2 as shown by the solid line in FIG. 1), the handrail bar 4 is substantially horizontal at a position facing the front of the sliding door 1. In the state, it is supported by the sliding door 1 and the guide rail 8 via the hinge mechanism 5 and the rotating roller 7, and can be used as a normal handrail. The guide rail 8 is attached (fixed) to the guide rail attachment member 10. Moreover, in FIG. 1, 3 shows a puller and 11 shows a duck.

  As shown in FIG. 2, the rotating roller 7 is rotatably attached to a bracket 6 attached to one end portion of the handrail bar 4 (the opposite end portion of the hinge mechanism 5). That is, the shaft 7c is fixed to the tip of the bracket 6, and the rotating roller 7 is rotatably attached to both ends of the shaft 7c with bearings 7a and 7a interposed therebetween. The bearings 7a and 7a include an inner ring (not shown) and an outer ring located on the outer peripheral side of the inner ring. The inner ring is fixed to both ends of the shaft 7c, a plurality of balls or rollers are interposed between the inner ring and the outer ring, and the outer ring is It is comprised so that the outer periphery of an inner ring | wheel may be rotated. A rotating body member 7b made of a resin or rubber layer is formed on the outer periphery of the outer ring. The rotating body member 7b is a rolling member provided on the upper surface of the bottom plate portion 8a of the guide rail 8, as will be described in detail later. It rolls on the rolling surface (upper surface) of the surface member 19. 2A is a longitudinal sectional view showing a lower portion of the guide rail for showing the operation of the handrail bar 4, and FIG. 2B is a guide for showing the engaged state of the guide rail 8 and the rotating roller 7. FIG. It is a transverse cross section of a rail (AA section arrow line view of Drawing 2 (a)). Although not shown in FIG. 2A, the guide rail 8 is attached to the guide rail attachment member 10 as in FIG.

  As shown in FIG. 2 (b), the guide rail 8 has a substantially U-shaped cross section in which side plate portions 8b and 8c are formed on both sides of a plate-like bottom plate portion 8a, and the side plate portion 8b, The upper end of 8c is provided with jump-out prevention frame plates 8d and 8e, and further the width dimension through which the bracket 6 passes between the jump-out prevention frame plate 8d and the jump-out prevention frame plate 8e (the bracket size exceeds the thickness dimension of the bracket 6). 6 is a configuration in which a gap G having a width dimension that can move without contacting the pop-out prevention frame plates 8d and 8e is provided. A rolling surface member 19 is provided in the longitudinal direction on the upper surface of the bottom plate portion 8a of the guide rail 8, and the rotating roller 7 rolls (rotates and moves) with the upper surface of the rolling surface member 19 as the rolling surface. ).

  In the sliding door device configured as described above, when the sliding door 1 is moved from the fully closed state (state indicated by the solid line in FIG. 1) in the direction of arrow A, the rotating roller 7 follows the rolling surface of the rolling surface member 19 of the guide rail 8. Then, it rotates and moves as shown in FIG. The handrail bar 4 rotates around the hinge mechanism 5 and the other end (the opposite end of the hinge mechanism 5) of the handrail bar 4 to which the rotating roller 7 is attached via the bracket 6 is pushed upward, and the sliding door When 1 is in a fully open state (state indicated by a two-dot chain line in FIG. 1), the handrail bar 4 is inclined at a predetermined angle or is in a vertical state. In this state, the handrail bar 4 is supported by the sliding door 1 and the guide rail 8 via the hinge mechanism 5 and the rotating roller 7. As described above, when the sliding door 1 is opened from the fully closed state or from the fully opened state, the rotating roller 7 attached to the other end of the handrail bar 4 via the bracket 6 rotates, and the other end of the handrail bar 4 is the guide rail. Ascending or descending along 8 is necessary.

  Here, when the rotation roller 7 ascends and descends in the guide rail 8 because the size in the space surrounded by the bottom plate portion 8a and the both side plate portions 8b and 8c of the guide rail 8 is larger than the outer peripheral size of the rotation roller 7, etc. Since the handrail bar 4 swings, particularly because the rotating roller 7 is attached to the end of the handrail bar 4 via the bracket 6, the side surface of the bracket 6 faces the gap G between the pop-out preventing frame plates 8d and 8e. There is a problem that the side surface of the bracket 6 is scratched, the operator of the sliding door 1 is uneasy, and noise is generated at the time of contact.

  The present invention has been made in view of the above points, and when the sliding door in the fully closed or fully opened state is opened or moved in the closing direction, a rotating roller rotatably attached to the tip of the handrail bar has a width direction of the guide rail. The sliding door can be moved smoothly without swinging in the longitudinal direction, and the user can open and close the sliding door with peace of mind without scratching the components such as brackets at the end of the handrail bar or generating contact noise. It aims at providing the sliding door apparatus which attached the handrail and the sliding door handrail.

  In order to solve the above-mentioned problems, the present invention provides a handrail bar whose one end or the vicinity of the one end is rotatably supported by a hinge mechanism and a guide rail attached to a fixed body separate from the sliding door. And a rotating roller rotatably attached to the other end side of the handrail bar from the hinge mechanism via a bracket, and rotating the rolling surface of the guide rail. When the sliding door is in a fully closed state, the handrail The bar is supported by the sliding door and the guide rail via the hinge mechanism and the rotating roller at a position facing the front of the sliding door and acts as a handrail. When a force in the opening direction is applied to the sliding door, the rotating roller is guided by the guide. Rotate and move the rolling surface of the rail, push the other end of the handrail bar upward, and when the sliding door is fully open, the handrail bar is tilted at a predetermined angle or in a vertical state with the hinge mechanism in front. A sliding door handrail configured to be supported by the sliding door and the guide rail via a rotating roller, wherein when the sliding door is moved in the opening and closing direction, the rotating roller is moved in the width direction of the rolling surface of the guide rail. A rotating roller guide mechanism that rotates and moves a predetermined position along the longitudinal direction of the guide rail is provided.

  In the sliding door handrail according to the present invention, a groove-shaped guide concave portion is formed in the axial center in the circumferential direction of the rotating roller, and the rolling surface of the guide rail has a center in the width direction. A convex guide projection is formed in the longitudinal direction, and the rotary roller guide mechanism is configured such that the rotary roller is inserted into the guide concave portion while the guide roller projection is inserted into the guide concave portion. It is comprised so that it may roll.

  In the sliding door handrail according to the present invention, the rolling surface of the guide rail has a flat rolling zone having a predetermined width dimension in the longitudinal direction at the center in the width direction, and is formed on both sides of the rolling zone. The rotating roller guide mechanism is configured such that the rotating roller rolls along the rolling zone, and the rotating roller rolls out of the rolling zone. When it runs, it is comprised so that the force which pushes back the said rotation roller to the said rolling zone may act.

  Further, the present invention provides the sliding door handrail, wherein the guide rail has a concave cross-sectional shape in which side plate portions are formed on both sides of the rolling surface, and each end portion on the side opposite to the rolling surface of the side plate portion. A jumping prevention frame for preventing the rotating roller from jumping out from the inside of the guide rail is attached, and a gap having a predetermined width in the longitudinal direction is formed at the center part in the width direction of the guide rail at the side ends of the both jumping prevention frames. And the bracket on which the rotating roller is rotatably attached moves in the gap, and the two anti-flying frames face the rolling surface toward the gap. It is characterized by an upward slope.

  Further, in the sliding door handrail according to the present invention, the rolling surface of the guide rail has an arc-shaped cross section, and the rotating roller guide mechanism has an axial center portion of the rotating roller. Rolling along the arc-shaped center portion, and when the axial center portion of the rotating roller deviates from the arc-shaped center portion, the axial center portion of the rotating roller is rolled. It is configured such that a force to push back acts on the arc-shaped central portion of the surface.

  Further, according to the present invention, in the sliding door handrail, an anti-flying frame for preventing the rotating roller from jumping out of the guide rail is attached to the side of the guide rail opposite to the rolling surface. The cross-section of the surface of the anti-extrusion frame facing the rolling surface has an arc-shaped cross section, and a gap having a predetermined width is provided in the longitudinal direction of the guide rail at the center in the width direction. The bracket attached rotatably is characterized by moving.

  Moreover, this invention is a sliding door apparatus provided with the sliding door, Comprising: One of the said sliding door handrails was attached to the sliding door, It is characterized by the above-mentioned.

  According to the present invention, since the rotating roller guide mechanism is provided, when the sliding door is moved in the opening and closing direction, the rotating roller is moved along the longitudinal direction of the guide rail at a predetermined position in the width direction of the rolling surface of the guide rail. Since it rotates, the end of the handrail bar on the side opposite to the hinge mechanism moves smoothly up and down without swinging with respect to the sliding door surface. Therefore, when opening and closing the sliding door, there is no problem that the member including the bracket that attaches the rotating roller to the end of the handrail stick touches the guide rail constituent member, and there is no problem of generating a noise at the time of contact. There is no feeling of anxiety to the person.

  In addition, according to the present invention, the rotating roller guide mechanism is configured such that the rotating roller rolls on the rolling surface while the guide protrusion of the rolling surface is inserted into the guide groove of the rotating roller. In addition, the rotating roller surely rolls on the rolling surface along the guide protrusion of the rolling surface. Therefore, as described above, particularly when the sliding door is moved from the fully closed state to the fully opened direction, the end portion of the handrail bar on the side opposite to the hinge mechanism will rise smoothly without swinging with respect to the sliding door surface. The operator who opens and closes the sliding door is not given any anxiety.

  Further, according to the present invention, the rotating roller guide mechanism has a flat rolling zone having a predetermined width dimension at the center in the width direction on the rolling surface of the guide rail along the longitudinal direction. Since an inclined surface with an upward slope is formed, when the rotating roller rolls along the rolling zone and the rolling roller rolls out of the rolling zone, the force that pushes the rotating roller back into the rolling zone Acts, and the rolling roller always rolls in the rolling zone. Therefore, as described above, particularly when the sliding door is moved from the fully closed state to the fully opened direction, the end portion of the handrail bar on the side opposite to the hinge mechanism will rise smoothly without swinging with respect to the sliding door surface. The operator who opens and closes the sliding door is not given any anxiety.

  Further, according to the present invention, in the rotating roller guide mechanism, the rolling surface of the guide rail has an arc-shaped cross section, and the rotating roller has an axial center along the arc-shaped center. Rolling, the axial center of the rotating roller deviates from the arcuate center, and a force is applied to the rotating roller to push the axial center back to the arcuate center of the rolling surface. The rotating roller always rolls in the center of the rolling surface of the guide rail. Therefore, as described above, particularly when the sliding door is moved from the fully closed state to the fully opened direction, the end portion of the handrail bar on the side opposite to the hinge mechanism will rise smoothly without swinging with respect to the sliding door surface. The operator who opens and closes the sliding door is not given any anxiety.

  Further, according to the present invention, a gap having a predetermined width is formed in the longitudinal direction at the center portion in the width direction of the guide rails at the side end portions of the both jump-out preventing frames, and both the jump-out preventing frames are opposed to the rolling surfaces. Since the surface is an inclined surface with an upward slope toward the gap, even when the sliding door moves from the fully open state to the fully closed direction, the central portion in the axial direction of the rotating roller is the gap between the side edges of the anti-projection frames. If the center is shifted from the center in the width direction, a force is applied to the rotating roller so that the center in the axial direction of the rotating roller coincides with the center in the gap width direction. Therefore, the sliding door is fully closed from the fully closed state or fully closed from the fully open state. When moving in the direction, the rotating roller always rolls reliably in the center of the guide rail when the sliding door is opened and closed. Therefore, it can prevent more reliably that the edge part by the side of the anti-hinge mechanism of a handrail bar rocks | fluctuates with respect to the sliding door front surface in response to the opening / closing operation | movement of a sliding door.

  Further, according to the present invention, the surface of the anti-flying frame that faces the rolling surface has a circular cross section, and a gap with a predetermined width is provided in the longitudinal direction of the guide rail at the center in the width direction. Even when the sliding door moves from the fully open state to the fully closed direction, the axial center portion of the rotating roller can be used even when the axial center portion of the rotating roller is displaced from the central portion of the gap width direction between the two end portions of the anti-jumping frame. Since a force that matches the central portion of the guide in the gap width direction acts on the rotating roller, the rotating roller always rolls reliably in the central portion of the guide rail. Therefore, similarly to the above, it is possible to more reliably prevent the end portion of the handrail bar on the side opposite to the hinge mechanism from swinging with respect to the front of the sliding door in conjunction with the opening / closing operation of the sliding door.

It is a figure which shows the structure of the sliding door apparatus provided with the handrail for sliding doors disclosed by patent document 2. FIG. It is a figure for demonstrating operation | movement of the handrail for sliding doors of the sliding door apparatus provided with the handrail for sliding doors disclosed by patent document 2. FIG. It is a figure which shows the rotating roller guide mechanism example of the handrail stick for sliding doors which concerns on this invention. It is a figure which shows the rotating roller guide mechanism example of the handrail stick for sliding doors which concerns on this invention. It is a figure which shows the rotating roller guide mechanism example of the handrail stick for sliding doors which concerns on this invention. It is a figure which shows the rotating roller guide mechanism example of the handrail stick for sliding doors which concerns on this invention. It is a figure which shows the rotating roller guide mechanism example of the handrail stick for sliding doors which concerns on this invention. It is a figure which shows the rotating roller guide mechanism example of the handrail stick for sliding doors which concerns on this invention.

  Hereinafter, embodiments of the present invention will be described in detail. In addition, since the basic structure of the handrail for sliding doors and the sliding door apparatus which concerns on this invention is as substantially the same as what is shown in FIG.1 and FIG.2, the detailed description is abbreviate | omitted.

  FIG. 3 is a view showing a configuration example of a rotating roller guide mechanism of a handrail bar of a sliding door handrail according to the present invention, FIG. 3 (a) is a view corresponding to FIG. 2 (b), and FIG. It is an enlarged view of a rolling surface member. As shown in FIG. 3A, the guide rail 8 is a rail having a substantially U-shaped cross section in which side plate portions 8b and 8c are formed on both sides of a flat bottom plate portion 8a. A rolling surface member 19 having a cross-sectional shape, which will be described in detail later, is provided on the upper surface of the bottom plate portion 8a. The rotating roller 7 has a ring-like shape via bearings 7a and 7a at both ends of a shaft 7c fixed to the tip of a bracket 6 attached to the other end of the handrail rod 4 (the end opposite to the hinge mechanism 5). The rotating body members 7b and 7b are rotatably attached. Each of the rotating body members 7b and 7b is composed of a rubber material or a resin material, or has a structure in which a layer of a rubber material or a resin material having a predetermined thickness on the surface of the ring-shaped member is formed. Thus, by attaching the rotating body members 7b and 7b to the both ends of the shaft 7c, a groove-shaped recess 7d is formed between the rotating body member 7b and the rotating body member 7b. The material of the predetermined thickness of the rotating member 7b, 7b or the surface thereof is not limited to a rubber material or a resin material. For example, in consideration of noise at the time of rolling of the rotating roller 7, wear resistance, etc. You may comprise with materials, such as a metal or a ceramic.

  Jump-out prevention frame plates 8d and 8e are attached to the upper ends of the side plate portion 8b and the side plate portion 8c of the guide rail 8, respectively. The bracket 6 freely moves and passes between the side end of the pop-out preventing frame plate 8d and the side end of the pop-out preventing frame plate 8e without contacting the side ends of the pop-out preventing frame plates 8d and 8e. A gap G is provided. The width dimension of the gap G is smaller than the dimension between the outer surfaces of the rotating members 7b and 7b of the rotating roller 7, and the side surface of the bracket 6 does not contact the side surfaces of the pop-out preventing frame plates 8d and 8e. The size is larger than the thickness of the bracket 6 so that it can move smoothly. Thereby, the rotating roller 7 can move and pass smoothly without jumping out of the guide rail 8.

  As shown in FIG. 1, the rotating roller 7 having the above-described configuration is attached via a bracket 6 to an end of the handrail bar 4 that is rotatably attached to the sliding door 1 via a hinge mechanism 5 on the side opposite to the hinge mechanism 5. It is arranged in the guide rail 8. When the sliding door 1 moves from the fully closed state to the fully opened direction (in the direction of arrow A in FIG. 1), the handrail bar 4 also moves in conjunction with it, so that the rotating roller 7 rotates upward while rotating the upper surface of the rolling surface member 19. Moving. Further, when the sliding door 1 moves from the fully open state to the fully closed direction (the direction opposite to the arrow A direction in FIG. 1), the handrail bar 4 also moves in conjunction with it, and the rotating roller 7 moves down in the guide rail 8. At this time, the two rotating body members 7b and 7b of the rotating roller 7 move (lower) while rotating the inner surfaces (surfaces facing the bottom plate portion 8a) of the pop-out preventing frame plates 8d and 8e.

  As described above, each time the sliding door 1 moves from the fully closed state to the fully open direction or from the fully open state to the fully closed direction, the rotating roller 7 rotates the upper surface of the rolling surface member 19 or the inner surfaces of the pop-out prevention frame plates 8d and 8e. At this time, since the distance between the side plate 8b and the side plate 8c is larger than the width of the rotating roller 7 (the dimension in the axial direction of the shaft 7c), the rotating roller 7 has its shaft 7c. Either one of both ends of the side plate contacts the side surface of the side plate portion 8b or the side surface of the side plate portion 8c, or one of both side surfaces of the bracket 6 contacts the side end of the jump-out preventing frame plates 8d, 8e, and rolling while meandering. There is a possibility that the upper surface of the surface member 19 or the inner surfaces of the pop-out prevention frame plates 8d and 8e may rotate. In conjunction with this meandering, the handrail bar 4 also swings with respect to the front of the sliding door 1 or generates a contact noise, which causes a problem of giving anxiety to the person who opens and closes the sliding door 1. In particular, when the rotating roller 7 meanders in the guide rail 8, the side surface of the bracket 6 comes into contact with both the pop-out preventing frame plates 8 d and 8 e, so that the side surface of the bracket 6 is scratched or contact noise is generated. There is also a problem of issuing.

  Therefore, here, in order to cope with the above problem, a guide projection 19a is formed in the longitudinal direction in the center in the width direction of the upper surface of the rolling surface member 19 arranged on the bottom plate portion 8a of the guide rail 8, and the guide projection The rolling surface member 19 is attached to the upper surface of the bottom plate portion 8a of the guide rail 8 so that 19a is inserted into the groove-like recess 7d between the rotating member 7b and the rotating member 7b of both rotating rollers 7. Yes. Further, the pop-out preventing frame plates 8d and 8e are attached to the upper ends of the side plate portions 8b and 8c, respectively, so that the inner surfaces thereof become inclined surfaces having an upward slope toward the gap G.

  When the sliding door 1 moves in the fully open direction from the fully closed state, the rotating roller 7 rolls on the upper surface of the rolling surface member 19, and a guide projection 19a of the rolling surface member 19 is formed between the rotating body members 7b and 7b. The upper surface of the rolling surface member 19 in the guide rail 8 is rotated while being inserted into the groove-shaped recess 7d. When the guide protrusion 19a is about to be detached from the groove-shaped recess 7d during the rotational movement of the rotating roller 7 (when the center B of the guide protrusion 19a is about to be removed from the center of the recess 7d), the guide protrusion 19a is moved. A force for returning into the groove-shaped recess 7d acts, and the rotating roller 7 rotates and moves along the guide protrusion 19a.

  Further, when the sliding door 1 moves from the fully open state to the fully closed direction, both rotating body members 7b and 7b of the rotating roller 7 rotate and move on the inner surfaces of the pop-out preventing frame plates 8d and 8e. Then, when the rotation roller 7 is shifted from the center in the width direction of the gap G toward the side plate portion 8b or the side plate portion 8c, the rotation roller 7 rotates and moves as described above. Since the inner surfaces of each inner surface are slopes that are inclined upward toward the gap G, both rotary members 7b and 7b of the rotary roller 7 have a force to return the rotary roller 7 to the center in the width direction of the gap G. As a result, the rotation roller 7 rotates and moves so that the center in the axial direction coincides with the center in the width direction of the gap G.

  As described above, the guide protrusion 19a is formed in the center in the width direction of the upper surface of the rolling surface member 19 disposed on the bottom plate 8a of the guide rail 8 and in the longitudinal direction, and both the pop-out prevention frame plates 8d and 8e are respectively formed. By making the inner surface an inclined surface having an upward slope toward the gap G, the rotating roller 7 does not rotate while meandering in the guide rail 8 when the sliding door 1 is opened and closed. As a result, the side surface of the bracket 6 does not come into contact with both the pop-out preventing frame plates 8d and 8e, and the side surface of the bracket 6 is not scratched or no noise is generated by the contact.

  Further, when the axial center of the rotating roller 7 is deviated from the central portion B of the guide projection 19a, and the side surfaces of both rotary members 7b and 7b of the rotation roller 7 are in contact with either side of the guide projection 19a. The shape of both side surfaces of the guide projection 19a and the material forming the both sides are selected so that the force that returns the axial center of the rotation roller 7 to the center B of the guide projection 19a acts effectively. Good. Further, the pop-out prevention frame plates 8d and 8e also have at least an inner surface on which the rotating roller 7 rotates, and the rotating roller 7 rotates when the axial center of the rotating roller 7 is shifted from the center in the width direction of the gap G. Further, it is preferable to select the material forming the inner surface and the inclination angle of the inclined surface so that a force that makes the center in the axial direction coincide with the center in the width direction of the gap G acts effectively.

  In the embodiment shown in FIG. 3, the cross sections of both outer peripheral portions of the rotating member 7b of the rotating roller 7 are formed in a square shape (right angle). However, as shown in FIGS. You may form both the outer peripheral part cross sections of the member 7b in circular arc shape. Thereby, when both outer peripheral parts of the rotating body member 7b contact the side part of the guide projection part 19a, it contacts smoothly and the noise emitted at the time of contact also becomes small.

  In the above embodiment, the groove-like recess 7d of the rotating roller 7 is formed between the rotating member 7b and the rotating member 7b attached to both ends of the shaft 7c, but the illustration is omitted. For example, a structure in which both ends of the shaft 7c are supported by brackets, a rotating portion supported rotatably by a bearing is provided on the outer periphery of the shaft between the brackets, and the axial center of the rotating portion of the integrated body is provided. It is good also as a structure which provides a concave guide groove so that the guide protrusion part 19a of the rolling surface member 19 may be inserted along the outer periphery of a part.

  FIG. 5 is a view showing another configuration example of the rotating roller guide mechanism of the handrail bar of the sliding door handrail according to the present invention, FIG. 5 (a) is a view corresponding to FIG. 2 (b), and FIG. ) Is an enlarged view of a rolling surface member. As shown in FIG. 5, the guide rail 8 is a rail having a substantially U-shaped cross section in which side plate portions 8b and 8c are formed on both sides of a bottom plate portion 8a having a flat bottom surface. At the upper end, there are attached anti-flying frame plates 8d and 8e whose inner surfaces are inclined upwardly toward the gap G, and both ends of the shaft 7c on which the rotating roller 7 is fixed to the bracket 6. 3 is the same as the rotating roller guide mechanism shown in FIG. 3 in that ring-shaped rotating body members 7b and 7b are rotatably attached to the part via bearings 7a and 7a.

  This rotating roller guide mechanism is different from the rotating roller guide mechanism shown in FIG. 3 in that the rotating roller along the longitudinal direction at the center in the width direction on the upper surface of the rolling surface member 19 (the surface on which the rotating roller 7 rolls). 7 is provided with a flat rolling zone 19b having a predetermined width dimension L1 for normal rolling, and inclined surfaces 19c and 19c having an upward slope toward the outside on both sides thereof. Thus, by providing the flat rolling zone 19b on the upper surface of the rolling surface member 19 and providing the inclined surfaces 19c and 19c on both sides thereof, the rotating roller 7 can be operated if the sliding door 1 is operated from the fully closed state to the fully opened direction. Rolls on the rolling zone 19b. If for some reason, either of the rotating members 7b, 7b of the rotating roller 7 rides on the inclined surfaces 19c on both sides of the rolling zone 19b and rolls, A force to push the rotating roller 7 back to the rolling zone 19b acts on the rotating member 7b. As a result, the rotating roller 7 is pushed back into the rolling zone 19b, and the rotating roller 7 always rolls in the rolling zone 19b. When the sliding door 1 is operated from the fully open state to the fully closed direction, the rotating body members 7b and 7b of the rotating roller 7 are formed on the inner surfaces of the pop-out preventing frame plates 8d and 8e that are inclined surfaces that are inclined upward toward the gap G. Since it rotates, as in the case of FIG. 3, the rotating roller 7 rotates so that its axial center coincides with the width direction center of the gap G. Thereby, every time the sliding door 1 is opened and closed, the end of the handrail bar 4 on the side opposite to the hinge mechanism moves smoothly without swinging, and there is no concern for the operator who opens and closes the sliding door. There is no feeling.

  The inclined surfaces 19c and 19c provided on both sides of the rolling zone 19b are flat ascending slopes. However, the inclined surfaces 19c and 19c do not have to be flat and may be curved as long as they are ascending. . Further, in the embodiment shown in FIG. 5, the cross sections of both outer peripheral portions of the rotating member 7b of the rotating roller 7 are formed in a square shape (right angle), but the rotating member is shown in FIGS. 6 (a) and 6 (b). You may form both outer peripheral part cross sections of 7b in circular arc shape. Thereby, when both outer peripheral parts of the rotating body member 7b contact the side part of the guide projection part 19a, they contact smoothly.

  FIG. 7 is a view showing another configuration example of the rotating roller guide mechanism of the handrail rod of the sliding door handrail according to the present invention, and FIG. 7 is a view corresponding to FIG. As shown in FIG. 7, in the rotating roller guide mechanism of the handrail rod, the guide rail 8 is made of a cylindrical tube material (pipe material), and a bracket 6 attached to the end of the handrail rod 4 on the upper portion of the tube material. Is inserted, and a slit-like gap G that can move in the vertical direction is formed. Similar to the rotating roller 7 shown in FIGS. 3 to 6, the rotating roller 7 is configured to freely rotate ring-shaped rotating members 7b and 7b via bearings 7a and 7a at both ends of a shaft 7c fixed to the bracket 6. It is an installed configuration.

  In the above configuration, when the sliding door 1 is operated from the fully closed state to the fully opened direction, the rotating body members 7b and 7b of the rotating roller 7 roll on the bottom arc surface in the guide rail 8, and on the contrary, the sliding door 1 is fully opened. Is operated in the fully closed direction, the rotating members 7b and 7b of the rotating roller 7 roll on the upper arc surface in the guide rail 8.

  As described above, by operating the sliding door 1 from the fully closed state to the fully open direction or from the fully open state to the fully closed direction, the rotating body members 7b and 7b of the rotating roller 7 can be formed in the bottom arc surface of the guide rail 8 or in the guide rail 8. So that the axial center 7f of the shaft 7c of the rotating roller 7 and the arc center 8g of the bottom arc surface in the guide rail 8 coincide with the arc center 8h of the upper arc surface. The rotating roller 7 rolls on the bottom arc surface of the guide rail 8. If for some reason the center 7f of the rotating roller 7 and the arc center 8g of the bottom arc surface of the guide rail 8 are displaced from the arc center 8h of the upper arc surface and the rotating roller 7 rolls, the axis of the rotating roller 7 A force for causing the direction center 7f and the arc center 8g or 8h of the guide rail 8 to coincide with each other acts on the rotating roller 7, so that the axis 7f of the rotating roller 7 coincides with the arc center 8g or 8h of the guide rail 8. I will roll.

  In the embodiment shown in FIG. 7, both outer peripheral sections of the rotating member 7b of the rotating roller 7 are formed in a square shape (right angle). However, both outer peripheral sections of the rotating member 7b are arcuate as shown in FIG. You may form in. In the above configuration example, the substantially entire portion excluding the gap G portion of the guide rail 8 is a circular arc in cross section. However, the circular arc portion is not limited to this, for example, the rotating roller 7 at the bottom portion of the guide rail 8. The rotary members 7b, 7b of each of the rotating members 7b, 7b are arc-shaped with a predetermined dimension beyond the axial direction, and both sides thereof are side plate portions 8b, 8c, for example, as shown in FIGS. It is good also as a structure which provided the jump-out prevention frame plates 8d and 8e which have the inner surface of the upward slope toward the gap | interval G at each part.

  By configuring the rotating roller guide mechanism as described above, when the rotating roller 7 rolls on the bottom arc surface or the upper arc surface of the guide rail 8, the arc between the axial center 7 f of the rotating roller 7 and the bottom arc surface of the guide rail 8. The center 8g or the arc center 8h of the upper arc surface coincides with rolling. When the rotation roller 7 rolls for some reason with its axial center 7f shifted from the arc center 8g of the bottom arc surface of the guide rail 8 or the arc center 8h of the upper arc surface, the rotation roller 7 has its axial center 7f. Is applied to the arc center 8g of the bottom arc surface of the guide rail 8 or the arc center 8h of the upper arc surface, and the rotating roller 7 always has the axial center 7f and the arc center 8g of the bottom arc surface of the guide rail 8. Or it will roll so that the circular arc center 8h of an upper circular arc surface may correspond.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Deformation is possible. Note that any shape or structure not directly described in the specification and drawings is within the technical scope of the present invention as long as the effects of the present invention are achieved. For example, although the suspension type sliding door has been described as an example in the above embodiment, for example, a sliding door having a sliding door with a configuration in which convex protrusions engage and slide on the upper and lower end surfaces of the sliding door in the recessed grooves of the upper and lower Kamoi sills. The sliding door handrail according to the present invention can also be used in the apparatus.

  In the present invention, when the sliding door is in the fully closed state, the handrail bar is supported by the sliding door and the guide rail through the hinge mechanism and the rotating roller in a substantially horizontal state at a position facing the front of the sliding door, and a force in the opening direction acts on the sliding door. The rotating roller rotates and moves along the guide rail, pushes the other end of the handrail bar upward, and when the sliding door is fully open, the handrail bar is tilted upward at a predetermined angle or in a substantially vertical state via the hinge mechanism and the rotating roller. Used as a rotating roller guide mechanism that smoothly rolls at a predetermined position in the width direction of the guide rail without swinging the rotating roller attached to the opposite end of the hinge mechanism of the handrail bar supported by the sliding door and guide rail can do.

DESCRIPTION OF SYMBOLS 1 Sliding door 2 Pillar 2a Side surface 3 Pulling hand 4 Handrail rod 5 Hinge mechanism 6 Bracket 7 Rotating roller 7a Bearing 7b Rotating body member 7c Shaft 7d Recessed part 7f Axial center 8 Guide rail 8a Bottom plate part 8b Side plate part 8c Side plate part 8d Frame plate 8e Pop-out prevention frame plate 8g Arc center 8h Arc center 10 Guide rail mounting member 11 Kamoi 19 Rolling surface member 19a Guide protrusion 19b Rolling zone 19c Inclined surface G Gap

Claims (7)

A handrail bar whose one end or the vicinity of the one end is rotatably supported by a hinge mechanism on the sliding door, a guide rail attached to a fixed body separate from the sliding door, and the other end from the hinge mechanism of the handrail bar A rotating roller rotatably mounted on a side of the guide rail through a bracket. When the sliding door is in a fully closed state, the handrail bar is located at a position facing the front surface of the sliding door. It is supported by the sliding door and the guide rail via a mechanism and the rotating roller and acts as a handrail. When a force in the opening direction is applied to the sliding door, the rotating roller rotates and moves on the rolling surface of the guide rail. When the sliding door is fully open, the handrail bar is inclined at a predetermined angle or in a vertical state with the hinge mechanism and the rotating roller interposed between the sliding door and the sliding door. A sliding door for handrail configurations that are supported by the inner rail,
When the sliding door is moved in the opening / closing direction, there is provided a rotating roller guide mechanism for rotating the rotating roller at a predetermined position in the width direction of the rolling surface of the guide rail along the longitudinal direction of the guide rail. Characteristic sliding door railing. The sliding door handrail according to claim 1,
The rotating roller has a groove-shaped guide recess in the circumferential direction at the center in the axial direction,
On the rolling surface of the guide rail, a convex guide projection is formed in the longitudinal direction at the center in the width direction,
The rotating roller guide mechanism is configured such that the rotating roller rolls on the rolling surface while the guide protrusion of the rolling surface is inserted into the guide recess of the rotating roller. Handrail for sliding doors. The sliding door handrail according to claim 1,
The rolling surface of the guide rail has a flat rolling zone having a predetermined width dimension in the longitudinal direction at the center in the width direction, and inclined surfaces having an upward slope toward the outside on both sides of the rolling zone. Has been
The rotating roller guide mechanism has a force that pushes the rotating roller back into the rolling zone when the rotating roller rolls along the rolling zone and the rotating roller rolls out of the rolling zone. A sliding door handrail characterized by being configured to act. The sliding door handrail according to any one of claims 1 to 3,
The guide rail has a concave cross-sectional shape in which side plate portions are formed on both sides of the rolling surface, and the rotating roller jumps out of the guide rail at each end of the side plate portion opposite to the rolling surface. Attach a pop-out prevention frame to prevent
Forming a gap with a predetermined width in the longitudinal direction at the center in the width direction of the guide rail at the side ends of the anti-projection frames;
The bracket to which the rotating roller is rotatably attached moves in the gap,
The sliding door handrail characterized in that a surface opposite to the rolling surface of both the pop-out prevention frames is an inclined surface having an upward slope toward the gap. The sliding door handrail according to claim 1,
The rolling surface of the guide rail has an arc-shaped cross section,
In the rotating roller guide mechanism, the axial center portion of the rotating roller rolls along the arc-shaped center portion,
When the axial center of the rotating roller rolls out of the arcuate center, a force is applied to the rotating roller to push the axial center back to the arcuate center of the rolling surface. It is comprised in the handrail for sliding doors characterized by the above-mentioned. In the sliding door handrail according to claim 5,
A surface of the guide rail opposite to the rolling surface is provided with a jumping prevention frame for preventing the rotating roller from jumping out of the guide rail, and the surface of the jumping prevention frame facing the rolling surface side. Has a circular cross section, and provides a gap with a predetermined width in the longitudinal direction of the guide rail at the center in the width direction,
The handrail for sliding doors, wherein the bracket to which the rotating roller is rotatably attached moves in the gap. A sliding door device with a sliding door,
A sliding door device, wherein the sliding door handrail according to any one of claims 1 to 6 is attached to the sliding door.

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