JP2008179473A - Stopper device for moving shelf - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stopper device for a moving shelf high in silence, preventing stumbling of a walker, while maintaining the shock absorbing function. <P>SOLUTION: This stopper device has an abutting member 21 composed of an elastic material, arranged in a lower part of the moving shelf 3A moving along a rail 7 arranged on a floor, and a shock absorbing means composed of the elastic material, arranged in the moving direction A of the moving shelf and abutting on the abutting member 21. The shock absorbing means is arranged so that its whole body is stored inside the rail 7. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a stopper device that stops a movable shelf at an arbitrary position.

  Mobile shelves (hereinafter referred to as “movable shelves”) that store articles such as books, documents, and luggage have a cart section with wheels at the bottom, and in the groove of the rail laid on the floor. It is supposed that the wheels can move along the rails. A stopper device for stopping the movable shelf at an arbitrary position is disposed on the floor or the rail member. For example, in Patent Document 1, a spring member and a stopper member are arranged on the rail side, and the movable shelf is stopped while buffering the impact at the time of contact by bringing the movable shelf into contact with the stopper member via the spring member. Is disclosed.

No. 05-27067

  In Patent Document 1, since the stopper member protrudes above the rail, not only the moving operation of the moving shelf is hindered, but there is a possibility that a pedestrian may crawl while walking when used as a passage. Further, when both the moving shelf and the spring member are made of metal, it is difficult to maintain the buffer function for a long time due to deterioration with the passage of time together with the contact sound of both. In particular, when a moving shelf is installed in a quiet place such as a library, the metal contact sound becomes annoying.

  An object of the present invention is to provide a stopper device for a moving shelf having high silence while preventing a pedestrian from whispering while maintaining a buffer function.

  Therefore, the inventors of the present invention provide a stopper device dedicated to a moving shelf that has a buffer function that has no protrusion on the rail upper surface, stops the moving shelf, and suppresses (absorbs) as much energy as possible during impact and earthquake at the time of stopping. I came to propose.

  The feature is that the contact member made of an elastic material provided at the lower part of the movable shelf moving along the rails arranged on the floor, and the contact member arranged in the moving direction of the movable shelf. And a buffering means made of an elastic material in contact with the buffering means, and the buffering means is arranged so that all of the buffering means is accommodated inside the rail.

  In the stopper device, the buffer means includes an impact diffusion portion made of an elastic material that comes into contact with the contact member, and a buffer support portion made of an elastic material and to which the impact diffusion portion is mounted. The impact diffusion part and the buffer support part were arranged in parallel in the moving direction of the moving shelf.

  In the stopper device, a buffer support portion having a nut member provided at an end of the buffer support portion and a bolt member fastened to the nut member from above the rail member toward the bottom portion of the rail member is fixed in the rail. The fixing means to be arranged was arranged on the end side of the buffer support portion located in the moving direction of the moving shelf.

  In the stopper device, a pressing member is provided so as to press the upper surface of the buffer support portion toward the bottom surface of the rail member.

  In the stopper device, the contact member is formed so as to sandwich the rail from both sides with respect to the moving direction of the movable shelf.

  According to the present invention, there is provided a contact member provided on the movable shelf, and a buffer means that is disposed in the moving direction of the movable shelf and is made of an elastic material that comes into contact with the contact member. Because the shock absorber does not protrude from the rail or the floor surface while absorbing the shock at the stop of the moving shelf and absorbing the shock at the time of contact with the contact member and the shock absorber. The stopper device for the moving shelf is highly silent while maintaining the buffer function and preventing the pedestrian from whispering.

  According to the present invention, the buffer means includes an impact diffusion portion made of an elastic material that contacts the contact member, and a buffer support portion that supports the impact diffusion portion, and the impact diffusion portion faces the contact member, Since the impact diffusion part and the buffer support part are arranged in parallel in the moving direction of the movable shelf, the impact diffusion part receives the pressure from the contact member when the contact member and the impact diffusion part abut, and the impact diffusion part receives Since the pressure is diffused throughout the buffer support portion, a stable buffer effect can be maintained for a long time without uneven deterioration.

  According to the present invention, the nut member provided at the end portion of the buffer support portion and the bolt member fastened to the nut member from above the rail member toward the bottom portion of the rail member, the buffer support portion is connected to the rail. Since the fixing means fixed inside is arranged on the end side of the buffer support portion located in the moving direction of the movable shelf, the buffer support portion is fixed in the rail. For this reason, if the impact at the time of contact between the contact member and the impact diffusing portion increases, the amount of elastic deformation between the impact diffusing portion and the buffer support portion increases, and the frictional resistance with the rail member increases. Thus, the fixing force of the buffer support portion to the rail member can be increased.

  According to the present invention, since the pressing member that presses the upper surface of the buffer support portion toward the bottom surface of the rail member is provided, the contact resistance between the buffer support portion and the rail member is increased, and the strength of the buffer support portion is increased. It is possible to more reliably absorb the impact from the contact member.

  According to the present invention, since the contact member is formed so as to sandwich the rail from both sides with respect to the traveling direction of the movable shelf, the direction of the movable shelf is restricted when the movable shelf is moved, and the skew of the movable shelf is prevented. be able to.

  Hereinafter, embodiments of the present invention will be sequentially described with reference to the drawings. FIG. 4 is a plan view of a library equipped with a moving shelf according to an embodiment of the present invention. In FIG. 1, the library 1 includes fixed shelves 2A and 2B and movable shelves 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, and 3I arranged between the fixed shelves 2A and 2B.

  Each of the fixed shelves 2A and 2B has a frontage on the surface facing each other, and a plurality of racks for storing articles are formed on each frontage surface. Each of the fixed shelves 2A and 2B has a bilaterally symmetric shape, and is configured such that the rack portions face each other.

  Each of the movable shelves 3A to 3I has the same shape, and each of the movable shelves 3A to 3I has a plurality of racks 3b at the top as shown in FIGS. 3a, and a plurality of carriage parts 3c each having a plurality of shelf wheels 3d at the bottom. In the present embodiment, the rack portions 3b are arranged in six rows and four stages, and the rack portions 3b are provided on both front surfaces of each of the movable shelves 3A to 3I. Seven carts 3c are attached to both sides viewed from the front surface of the shelf 3a and the lower part between each rack 3b, and two shelves 3d are supported on each cart 3c. 3e is rotatably supported by each. Each of the shelf wheels 3d has the same flat cylindrical shape that does not have a flange, but, of course, one having a flange may be used.

  Each of the movable shelves 3A to 3I is individually moved on the rail 7 in a direction orthogonal to the front surface thereof, and a passage 23 shown in FIG. 4 is provided between any two of the movable shelves 3A to 3I. Is formed. In FIG. 4, an arrow A indicates the moving direction of each moving shelf.

  Next, the structure of the stopper device for moving shelves (hereinafter referred to as “stopper device”) 20 as the main part of the present invention will be described with reference to FIGS. The stopper device 20 absorbs vibration of each moving shelf when the moving shelf stops moving or when an earthquake occurs, and is provided on each moving shelf and the rail 7 through which the moving shelf passes. In this embodiment, a description will be given by taking the movable shelf 3A and the rail 7 as an example.

  The stopper device 20 includes a contact member 21 made of an elastic material provided at the lower portion of the movable shelf 3A, and a buffer means made of an elastic material that is disposed in the moving direction A of the movable shelf 3A and contacts the contact member 21. 23. The biggest feature is that the buffer means 23 is constructed and arranged so that all of the shock absorber 23 is accommodated in the rail 7.

  The contact member 21 is attached to the carriage 3c of the movable shelf 3A via a metal fitting 22 that is a metal bracket. The lower end of the support bracket 22 is bent at a substantially right angle, and the cart portion 3c positioned in the moving direction of the movable shelf 3A so that the bent portion 22A is positioned below the cart portion 3c (lower portion of the movable shelf 3). It is fastened to the side surface 3c1 by screws (not shown). A plurality of screw holes 22B are formed in the bent portion 22A.

  The contact member 21 has a rectangular parallelepiped shape or a cube shape as a whole, and a concave portion 21A is formed in the entire central portion of the contact member 21 as shown in FIGS. A plurality of holes 21B and 21B are formed in the recess 21A so as to penetrate the portion. A screw 26 is inserted into each hole 21B as shown in FIG. The contact member 21 is fixed to the bracket 221 by tightening the inserted screw 26 into the screw hole 221 </ b> B of the bracket 22. That is, the contact member 21 can be attached to the movable shelf 3A from the outside of the carriage part 3c even after the assembly of the carriage part by finishing the bolt 26 by tightening or loosening the screw 26, and the construction can be easily performed. It is said that.

  The contact member 21 is made of a resin that is an example of an elastic member. As the resin, for example, a resin excellent in impact resistance such as a polyacetal resin is preferable. The contact member 21 is mounted on the receiving bracket 22 so that the opening side of the recess 21A faces the rail 7, and the wall portions 21C and 21D located on both sides of the recess 21A are in grooves 7A and 7B formed in the rail 7. It is said that the height is located. The widths W of the walls 21C and 21D are somewhat narrower than the width W1 of the grooves 7A and 7B of the rail 7, and are formed so as to sandwich the rail 7 from both sides with respect to the traveling direction of the movable shelf 3A. Yes. That is, the contact member 21 has a function of stopping the movable shelf 3A in contact with the impact diffusion portion 24 and a function of preventing the movable shelf 3A from skewing.

  As shown in FIGS. 1 and 3, the buffer means 23 includes an impact diffusion portion 24 made of an elastic material that comes into contact with the contact member 21, and a buffer support portion 25 that supports the impact diffusion portion 24. It is arranged at the end. In this embodiment, two sets of buffer means 23 are provided in the grooves 7A and 7B of the rail 7, respectively. FIG.

  Each impact diffusion portion 24 is located closer to the contact member 21 than the buffer support portion 25 in the grooves 7A and 7B of the rail 7 facing the contact member 21, and is parallel to the buffer support portion 25 in the moving direction A of the movable shelf 3A. Respectively. Each impact diffusion portion 24 has a rectangular parallelepiped shape or a cubic shape, and is made of a resin having excellent impact resistance such as polyacetal resin. The impact diffusion portion 24 is attached to the end surface 25A of the buffer support portion 25 by an adhesive means such as a double-sided tape. Mounting is supported.

  Each buffer support portion 25 has a rectangular shape formed of a well-known CR rubber material, and is a portion located on the side opposite to the end face 25A on which the buffer diffusion portion 24 is pasted, that is, the moving direction of the moving shelf On the end side of the buffer support portion 25 positioned at A, step portions 25B are formed. A square nut 27 is fixed to the step portion 25B. The height H of each impact diffusion portion 24 and each buffer support portion 25 is the same in this embodiment, and is set lower than the height H1 of the rail 7. A bolt member 32 is fastened to the square nut 27 from above the rail members 7A and 7B toward the rail bottom 7C. The square nut 27 and the bolt member 32 constitute a fixing means 30.

  A metal edge cover 28 that covers the end portion of the rail 7 is disposed above each buffer support portion 25. The edge cover 28 has an L-shaped cross section, and when the edge cover 28 is attached to the rail 7, it contacts the upper surface 25 </ b> D of the buffer support portion 25 from above toward the rail bottom surface 7 </ b> C, and faces the rail bottom surface 7 </ b> C. A rubber pressing member 31 and a hole 29, which are elastic members to be pressed, are provided.

  In the stopper device 20 having such a configuration, the contact member 21 is mounted on the carriage portion 3c, the buffer diffusion portion 24 is mounted on the end surface 25A of the buffer support portion 25, and the nut 27 is mounted on the step portion 25B. The buffer means 23 is inserted into the inside of the rail 7 from the grooves 7A and 7B of the rail 7 and placed on the rail bottom surface 7C located at the end of the rail. Next, the edge cover 28 is covered from above the rail 7, and the bolt member 32 is inserted from the hole 29 and tightened to the square nut 27. Then, the square nut 27 is attracted to the bolt member 32 and comes into contact with the inner surface 7D of the grooves 7A and 7B, and the stepped portion 25B is pressed into the rail bottom surface 7C by the tip 32A of the bolt member 32. As a result, the contact force between the rail bottom surface 7 </ b> C and the bottom surface 25 </ b> C of the buffer support portion 25 becomes strong, and the buffer means 23 is fixed in the rail 7.

  At this time, the height H of the impact diffusion portion 24 and the buffer support portion 25 is the same in this embodiment, and is set lower than the height (groove depth) H1 of the rail 7. That is, since the buffer means 23 is disposed in the rail 7 so that all of it is housed in the rail 7, the buffer means 23 does not protrude from the rail 7 or the floor surface 6 and prevents the pedestrian from whispering. be able to. Since the contact member 21 and the buffering means 23 are made of an elastic material, the contact of the contact member 21 with the buffering means 23 can stop the movement of the movable shelf 3A, and can absorb the impact at the time of contact. it can. For this reason, a metal collision sound is not generated, and the silence is high.

  Since the impact diffusion portion 24 faces the contact member 21 and is arranged in parallel adjacent to the buffer support portion 25 in the moving direction A of the movable shelf 3A, the contact member is in contact with the contact member 21 and the impact diffusion portion 24. 21, the shock diffusion unit 24 receives the pressure from the shock diffusion unit 24 and contracts, and the pressure received by the shock diffusion unit 24 is transmitted to the buffer support unit 25 and elastically deformed to be diffused throughout the buffer support unit 25. A stable buffering effect can be maintained for a long time without uneven deterioration.

  Further, even when the impact diffusion portion 24 is pressed with a pressure exceeding the contraction range, the elastic deformation of the buffer support portion 25 increases the resistance between the buffer support portion 25 and the rail bottom surface 7C and the inner surface 7D, and the step portion 25B. However, since the contact resistance between the inner surface 7D of the grooves 7A and 7B and the square nut 27 also increases, the buffer support portion 25 is fixed, and the buffer means 23 is firmly fixed to the rail 7 as the pressure is received. Can do. For this reason, even when the position of the buffer means 23 is stabilized and the movable shelf 3A is moved vigorously, it can be reliably stopped at a predetermined position.

  Since the upper surface 25D of the buffer support portion 25 is pressed by the pressing member 31 toward the rail bottom surface 7C, the contact resistance between the buffer support portion 25 and the rail member 7C increases, and the strength of the buffer support portion 25 increases. Thus, it is possible to more reliably absorb the impact from the contact member 21.

  Furthermore, since the contact member 21 is formed with the walls 21C and 21D so as to sandwich the rail 7 from both sides with respect to the moving direction of the movable shelf 3A, the wall 21C and 21D and the groove are formed when the movable shelf 3A is moved. The orientation of the movable shelf 3A is regulated by 7A and 7B, and the skew of the movable shelf 3A can be prevented.

It is an expanded sectional view which shows the structure of the stopper apparatus for movable shelves which shows one embodiment of this invention. It is the enlarged view which looked at the structure and attachment state of the contact member which comprise the stopper apparatus for moving shelves from the moving direction of the moving shelf. It is a disassembled perspective view which shows the structure of the stopper apparatus for moving shelves. It is a top view of the physical distribution apparatus provided with the movement shelf which is one embodiment of this invention. It is a front view which shows schematic structure of a movement shelf. It is a side view which shows schematic structure of a movement shelf.

Explanation of symbols

3A to 3I Moving shelf 6 Floor 7 Rail 21 Contact member 23 Buffering means 24 Impact diffusion part 25 Buffer support part 25B End part of buffer support part 25D Upper surface of buffer support part 27 Nut member 30 Fixing means 31 Pressing member 32 Bolt member A Movement Shelf movement direction

Claims (5)

A contact member made of an elastic material provided at a lower part of a moving shelf that moves along a rail arranged on the floor;
Buffer means made of an elastic material arranged in the moving direction of the moving shelf and abutting against the contact member;
The moving shelf stopper device, wherein the buffer means is disposed so that all of the buffer means is accommodated in the rail. The buffer means includes an impact diffusion portion made of an elastic material that comes into contact with the abutting member, and a buffer support portion made of an elastic material to which the impact diffusion portion is attached,
2. The movable shelf stopper according to claim 1, wherein the impact diffusion portion faces the contact member, and the impact diffusion portion and the buffer support portion are arranged in parallel in the movement direction of the movable shelf. apparatus. Provided on the end side of the buffer support portion located in the moving direction of the movable shelf, and has a fixing means for fixing the buffer support portion in the rail,
The fixing means includes a nut member provided at an end of the buffer support portion and a bolt member fastened to the nut member from above the rail member toward the bottom of the rail member. The stopper device for a moving shelf according to claim 2.   The movable shelf stopper device according to claim 1, further comprising a pressing member that presses an upper surface of the buffer support portion toward a bottom surface of the rail member.   5. The movable shelf stopper device according to claim 1, wherein the contact member is formed so as to sandwich the rail from both sides with respect to a moving direction of the movable shelf.

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