JP4759439B2 - Elevator car - Google Patents

Description

  The present invention relates to an elevator car, and more particularly to an elevator car suitable for securing the strength required for a car frame or the like.

  An elevator car is generally composed of a car room for carrying passengers and goods, and a car frame that supports the car room and moves along a guide rail provided in a hoistway formed in the building. And the load which acts on a cage | basket | car frame is not constant, and the site | part which applies a big load compared with another site | part exists. For example, since the own weight and the load weight of the cab are transmitted to the car frame using the vibration isolating member as a support point, a strong load is applied to the fastening position of the car frame with the vibration isolating member. In addition, in a lift type elevator in which a pulley is attached to the lower side of the car frame via a pulley support base and the car room and the car frame are moved up and down in accordance with the driving of a rope wound around the pulley, The chamber's own weight and loaded weight act on the pulley support as stress from the rope. For this reason, conventionally, by adding a reinforcing member to a part where such a large force is applied, the strength is partially increased, or the material itself is changed to a more rigid material so as to ensure the required strength. I was doing.

  However, in the case where the former reinforcing member is added, the cost increases and the car assembly workability deteriorates as the number of parts increases. In addition, the latter material itself is effective in that it corresponds to the acting load, but it is necessary to change the material of the entire member because of the high load that acts partially. There are problems from the viewpoint of cost increase and effective use of resources.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an elevator car that can efficiently cope with a partially applied high load.

  In order to achieve the above object, an invention according to claim 1 of the present invention includes a car room, and a car frame that supports the car room and moves along a guide rail provided in a hoistway formed in the building. In the elevator car structure car comprising the above, the overhanging portion formed by plastic working along the load applying direction is provided at the load supporting point of the car frame.

  In the invention according to claim 1 of the present invention configured as described above, a special reinforcement member is added by performing plastic working on the load support point of the car frame and providing an overhang portion formed along the load application direction. Therefore, it is possible to cope with a high load that partially acts without changing the material of the car frame itself.

  According to a second aspect of the present invention, there is provided an elevator car in which a vibration isolating member is interposed between the car room and the car frame, and the car frame has a fastening position with the vibration isolating member. The overhanging portion is provided.

  The invention according to claim 2 of the present invention configured as described above has a high load that acts on the fastening position with the vibration isolating member structurally by providing the overhang portion at the fastening position with the vibration isolating member of the car frame. It can correspond to.

  Furthermore, the invention according to claim 3 of the present invention includes a car room, a car frame that supports the car room and moves along a guide rail provided in a hoistway formed in the building, and a lower part of the car frame. And a pulley that is pivotally supported by the pulley support and on which a rope is wound, and a lift-type elevator that raises and lowers the car room and the car frame according to the driving of the rope In the cage, the pulley support base is provided with an overhang portion formed by plastic working along the load application direction.

  In the invention according to claim 3 of the present invention configured as described above, the pulley support base is subjected to plastic working and provided with an overhang portion formed along the load application direction, thereby adding a special reinforcing member, and a car frame. It is possible to cope with a high load acting on the pulley support base as a stress from the rope without requiring a change in the material itself.

  According to the present invention, it is possible to ensure the necessary strength by a simple method of applying plastic working to a specific portion, that is, a fastening position with a vibration isolating member of a car frame, a pulley support base, and the like. Thus, the cost and weight of the apparatus can be reduced, and the efficiency of the car assembling work can be improved.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator car according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a first embodiment of an elevator car according to the present invention, FIG. 2 is a schematic front view of the car in FIG. 1, FIG. 3 is a schematic side view of the car in FIG. FIG. 5 is an equivalent view of FIG. 4 showing another shape of the overhang portion of FIG.

  As shown in FIGS. 2 and 3, the elevator car of the first embodiment is shown in a car room 1 for carrying passengers and things, and an elevator shaft that supports the car room 1 and is formed in a building. A car frame 2 that moves along the guide rails that are not connected, and a vibration isolating member 3 that is interposed between the car room 1 and the car frame 2 are provided. The car frame 2 includes a lower car frame 2a that receives the load of the car room 2 via the vibration isolator 3, a vertical car frame 2b that is erected on the lower car frame 2a, and an upper end of the vertical car frame 2b. And an upper car frame 2c to which the rope 4 is connected. Further, as shown in FIG. 1, the lower car frame 2a includes, for example, a pair of vertical bases 2a1 having a substantially U-shaped cross-sectional shape, and a plurality of horizontal bases 2a2 disposed between the vertical bases 2a1. Yes.

  1 and FIG. 4, a trapezoid formed by plastic working along the load application direction at a load support point of the car frame, for example, a fastening position with the vibration isolating member 3 of the car frame 2 The overhanging portion 5 having the cross-sectional shape is provided.

  In the first embodiment, the own weight and the load weight of the car room 1 are transmitted to the car frame 3 with the vibration isolating member 3 as a supporting point. A strong load is applied to the position indicated by A. Therefore, as described above, the overhanging portion 5 having a trapezoidal cross-sectional shape is provided at a position below the vibration isolating member 3 of the vertical base 2a1 constituting the car frame 2, thereby increasing the strength and increasing the load acting partially. It can be supported.

  According to the first embodiment, it is possible to ensure the necessary strength by a simple method of performing plastic working on a specific portion of the car frame 2 on which a high load acts, that is, a fastening position with the vibration isolating member 3, As a result, the cost of the apparatus can be reduced and the efficiency of the car assembly work can be improved. Moreover, while providing the overhang | projection part 5 in the specific site | part where high intensity | strength is required, about the site | part which does not apply a load comparatively, by making it thin, it can make the car frame 2 lightweight while ensuring strength. it can.

  In the first embodiment, the overhanging portion 5 has a trapezoidal cross-sectional shape. However, the present invention is not limited to this, and the overhanging portion has a circular cross-sectional shape as shown in FIG. Needless to say, the same effect can be obtained with 5a.

  6 is a perspective view showing a second embodiment of the elevator car according to the present invention, FIG. 7 is a schematic front view of the car provided with the pulley support of FIG. 6, and FIG. 8 is provided with the pulley support of FIG. It is a side schematic diagram of a cage.

  As shown in FIGS. 7 and 8, the elevator car shown in the second embodiment is provided in a car room 11 for carrying passengers and things, and in a hoistway formed in the building while supporting the car room 11. A car frame 12 that moves along a guide rail (not shown), a vibration isolating member 13 that is interposed between the car room 11 and the car frame 12, a pulley support base 16 that is attached below the car frame, and this pulley And a pulley 17 that is supported by the support base 16 and on which the rope 14 is wound. The car frame 12 includes a lower car frame 12a that receives the load of the car room 12 via the vibration isolating member 13, a vertical car frame 12b that is erected on the lower car frame 12a, and an upper end of the vertical car frame 12b. And an upper car frame 12c to which the rope 4 is connected. Further, the pulley support 16 is provided with a bearing 16a through which a pulley shaft (not shown) is inserted. This elevator is a so-called lift type elevator in which the car room 11 and the car frame 12 are moved up and down in accordance with the driving of the rope 14.

  The pulley support 16 is provided with an overhang portion 15 formed by plastic working along the load application direction as shown in FIG.

  In the second embodiment, the own weight and the loaded weight of the car room 11 act on the pulley support 16 as stress from the rope 14. Therefore, as described above, the extension portion 15 having a trapezoidal cross-sectional shape is provided on the pulley support base 16 so as to increase the strength and cope with a partially applied high load.

  According to the second embodiment, the required strength can be ensured by a simple method in which a specific portion to which a high load acts, that is, the pulley support 16 is plastically processed, thereby reducing the cost of the apparatus. , And the efficiency of car assembly work can be improved.

  As in the first embodiment, the shape of the overhanging portion 15 formed on the pulley support base 16 is not limited to the trapezoidal cross-sectional shape, and it is needless to say that the shape may be other shapes.

1 is a perspective view showing a first embodiment of an elevator car according to the present invention. FIG. 2 is a schematic front view of the car of FIG. 1. FIG. 2 is a schematic side view of the car of FIG. 1. It is an enlarged view of the A section of FIG. FIG. 5 is a view corresponding to FIG. 4 showing another shape of the overhang portion of FIG. 1. It is a perspective view which shows 2nd Embodiment of the elevator car which concerns on this invention. It is the front schematic of the cage | basket | car provided with the pulley support stand of FIG. FIG. 7 is a schematic side view of a car provided with the pulley support of FIG. 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Car room 2,12 Car frame 2a, 12a Lower car frame 2b, 12b Vertical car frame 2c, 12c Upper car frame 2a1 Vertical base 2a2 Horizontal base 3,13 Anti-vibration member 4,14 Rope 5,15 Overhang part

Claims (3)

In an elevator car comprising a car room and a car frame that supports the car room and moves along a guide rail provided in a hoistway formed in the building,
An elevator car comprising a load support point of the car frame provided with an overhang portion formed by plastic working along a load application direction.   An elevator car having a vibration isolating member interposed between the car room and the car frame, wherein the overhanging portion is provided at a fastening position of the car frame with the vibration isolating member. The elevator car according to Item 1. A car frame, a car frame that supports the car room and moves along a guide rail provided in a hoistway formed in the building, a pulley support base attached below the car frame, and the pulley support base A lift-type elevator car that includes a pulley that is pivotally supported and on which a rope is wound, and that raises and lowers the car room and the car frame according to the driving of the rope.
An elevator car comprising an extension portion formed by plastic working along a load application direction on the pulley support base.

Images