JP2016008112A - Lift device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lift device that has a base-isolation function capable of effectively preventing a stationary portion, a mast, a floor and a ceiling from being deformed or broken.SOLUTION: In a lift device 1 comprising a vertically extending mast 2, the mast 2 is supported via oscillatable means 16 and 41 in at least two locations in a longitudinal direction, and supported in such a manner as to combine vertical motion permitting means 42 with the oscillatable means 16 and 41, in at least one of the two locations.

Description

  The present invention relates to a lift device for transferring an article up and down.

  A lift device is installed from the floor to the ceiling of a building or the like, or installed in a multi-story building, and lifts up or down and delivers items up and down. The mast includes an article placement unit that moves up and down along the mast. In such a lift device, when a horizontal relative displacement occurs between upper and lower layers due to an earthquake or the like, the most vulnerable part of the mast and the mast and the floor or ceiling are deformed or deformed. There was a risk of breakage. In view of this, there is one having a seismic isolation function for preventing a failure of the lift device due to the swing by making the fixing portion that fixes the upper and lower ends of the mast and each layer swingable (see, for example, Patent Document 1). ).

Japanese Patent Laying-Open No. 2005-96975 (page 5, FIG. 1)

  Even in such a lift device, when the horizontal relative displacement is large, the mast swings and rotates by the swingable fixing portion. The position is displaced in the vertical direction. At this time, stress was generated in the mast fixing part, and the most vulnerable part of the fixing part mast and the floor or ceiling might be deformed or damaged, and the seismic isolation function could not be sufficiently exhibited.

  The present invention has been made paying attention to such problems, and an object thereof is to provide a lift device having a seismic isolation function that can effectively prevent deformation or breakage of a fixed portion, a mast, and a floor or a ceiling. And

In order to solve the above-mentioned problem, the lift device of the present invention includes:
A lifting device with a mast extending vertically,
The mast is supported via swingable means in at least two locations in the longitudinal direction, and at least one of the two locations has a vertical movement allowance means in addition to the swingable means. It is characterized by being supported.
According to this feature, the mast is supported through the swingable means in at least two places in the longitudinal direction, so that it can cope with displacement in all directions due to shaking, and Even if the relative displacement in the horizontal direction is large due to the fact that at least one location is supported by the vertical movement permitting means and allowed to move up and down, the vertical direction of the mast accompanying the pivoting rotation of the mast And can effectively prevent deformation or breakage of the lift device and the floor or ceiling.

The swingable means is a universal joint, and the vertical movement allowing means is a linear motion bearing that can move up and down relatively with respect to the mast.
According to this feature, the mast can cope with displacement in all directions due to the swing by the universal joint, and the mast that is inclined by the swing by the linear motion bearing that can move up and down relatively with respect to the mast. Can cope with vertical displacement.

At least one end in the longitudinal direction of the mast is supported on the floor surface via a damper having a restoring function.
According to this feature, when the horizontal relative displacement is eliminated, the damper can be restored and the mast can be self-returned to the upright state.

The vertical movement allowing means is attached to the mast side surface.
According to this feature, the mast can be extended to the ceiling by arranging the linear motion bearing on the side of the mast.

It is a front view which shows the lift apparatus in an Example. It is a side view which similarly shows a lift apparatus. (A) is a partial cross-section enlarged view showing a normal state of the seismic isolation support part on the lower end side of the mast, and (b) is a view showing a case where the mast is inclined. It is a partial cross section enlarged view which shows the seismic isolation support part of the mast upper end side. It is a partial cross section top view which shows the seismic isolation support part of the mast upper end side. It is the partial expansion conceptual diagram which looked at the lift apparatus at the time of the vibration of the left-right direction seeing from the back. It is the partial expansion conceptual diagram which looked at the lift apparatus at the time of the shake | fluctuation in the front-back direction from the back surface. It is a conceptual diagram which shows the seismic isolation support part of the mast upper end side in a 1st modification. It is a conceptual diagram which shows the seismic isolation support part of the mast upper end side in a 2nd modification. It is a partially expanded view which shows the seismic isolation support part of the mast lower end side in the 3rd modification.

  EMBODIMENT OF THE INVENTION The form for implementing the lift apparatus which concerns on this invention is demonstrated below based on an Example.

  2. Description of the Related Art In recent years, safe deposit boxes installed in financial institutions such as banks have installed storage shelves for storing a large number of storage boxes for storing articles in a safe room, and a specified storage box can be placed at a predetermined location according to customer requirements. Can be carried in and out. The lift device 1 shown in FIG. 1 is a transfer device that is used in such a safety deposit box device or the like and delivers articles and storage boxes to upper and lower levels.

  A lift device 1 according to an embodiment will be described with reference to FIGS. 1 to 7. As shown in FIGS. 1 and 2, the lift device 1 includes a mast 2 installed across a plurality of upper and lower levels, and a lifting platform 3 that moves up and down along the mast 2. The mast 2 has a rail shape with concave grooves (not shown) on the left and right sides, and the upper end side and the lower end side in the longitudinal direction are the floor of the lower DF by the lower base isolation support 4 and the upper base isolation support 5, respectively. It is supported by the inner wall W of the small room R protruding to the surface F and the upper layer UF. A seismic isolation layer (not shown) is provided between the upper layer UF and the lower layer DF in the building to prevent the building itself from collapsing due to shaking such as an earthquake.

  The lifting platform 3 includes a placing portion 10 on which a storage box (not shown) for storing valuables is placed, a moving portion 11 having a protruding portion (not shown) that floats in the groove of the mast 2, Both ends 12a and 12b of the wire 12 are fixed on the top and bottom of the moving part 11. The wire 12 is adapted to transmit the drive of the drive device 14 disposed in the vicinity of the lower portion of the mast 2 via pulleys 13a, 13b, and 13c pivotally supported in the mast 2. The elevator 3 can be moved up and down by rotation and reverse drive.

  Next, the support structure for the mast 2 will be described with reference to FIGS. First, the seismic isolation support part 4 that supports the lower end side of the mast 2 will be described. A base member 15 is fixed to the lower end portion 2b of the mast 2, and a first component member 17 constituting a ball joint 16 which is a swingable means described later is provided on the base member 15 with bolts 30, 30 and so on (see FIG. 3).

  The ball joint 16 is configured such that the first component member 17 and the second component member 18 are connected so as not to be detached, and the outer surface of the spherical ball stud 19 provided in the first component member 17 is the second component. By making spherical contact with the inner surface of the socket 20 of the member 18, the first component member 17 and the second component member 18 can rotate in all directions. The second component 18 is fixed to the floor surface F using fixing screws 31 and 31.

  Further, as shown in FIGS. 1 and 2, rubber dampers 35, 35,... That are grounded to the floor surface F are provided at the four corners of the base member 15, respectively, The load of the mast 2 applied to 16 is distributed to the dampers 35, 35,... To suppress the deterioration of the ball joint 16 over time. The base member 15, the ball joint 16, and the dampers 35, 35,... Described above mainly constitute the lower seismic isolation support portion 4. The dampers 35, 35,... Are not limited to rubber and may be push springs or the like.

  As shown in FIGS. 2 and 4, the upper seismic isolation support portion 5 that supports the upper end side of the mast 2 includes a beam member 40 fixed over the inner wall W of the small room R protruding from the upper layer UF, and a ball It is mainly composed of a joint 41 and a guide member 42 fixed to the side surface 2c of the mast 2. A first component member 43 constituting a ball joint 41 is connected to the beam member 40 by bolts 32, 32,.

  The ball joint 41 is configured such that a first component member 43 and a second component member 44 are connected so as not to be detached, and the second component member 44 is attached to an inner surface of a socket 45 provided in the first component member 43. Since the outer surface of the spherical ball stud 46 is in spherical contact, the first component member 43 and the second component member 44 can rotate in all directions.

  As shown in FIGS. 4 and 5, a slider 47 having a substantially U-shaped cross section extends from the ball stud 46 in the second component member 44. Protrusions 47 a, 47 a are formed on the inner side surface of the slider 47, and these protrusions 47 a, 47 a are loosely fitted into the concave grooves 42 a, 42 a formed on the outer surface of the guide member 42, so that the slider 47 And the guide member 42 are relatively movable in the vertical direction to constitute a vertical movement allowance means.

  Although not shown here, a plurality of balls are included between the convex portions 47a, 47a and the concave grooves 42a, 42a, and these balls are formed in the convex portions 47a, 47a and the concave grooves 42a, 42a. By making point contact with each other, sliding resistance at the time of relative movement between the slider 47 and the guide member 42 is lowered.

  Subsequently, when the relative horizontal displacement of the upper layer UF and the lower layer DF occurs due to an earthquake or the like, the operation of the lower seismic isolation support unit 4 and the upper seismic isolation support unit 5 will be described with reference to FIGS. 6 and 7. I will explain. Actually, it is conceivable that the upper layer UF and the lower layer DF move in the horizontal direction due to the motion of the seismic isolation layer at the time of the earthquake. The upper layer UF is illustrated and explained as if it moved in the direction of the white arrow.

  FIG. 6 is a partially enlarged conceptual view of the lift device 1 as seen from the back side, and shows a case where a swing in the left-right direction (direction along the beam 40) occurs with respect to the building. As shown in FIG. 6, when a relative horizontal displacement of the upper layer UF and the lower layer DF occurs, this displacement acts so that the lower end side and the upper end side of the mast 2 are pulled in opposite directions.

  At this time, since the lower end side of the mast 2 is supported by the floor surface F of the lower layer DF via the ball joint 16 that constitutes the lower seismic isolation support portion 4, the ball joint 16 rotates in the inclination direction, and the mast 2 2 tilts with the ball joint 16 on the lower end side as a viewpoint. Similarly, the ball joint 41 also rotates in the inclination direction of the mast 2 on the upper end side of the mast 2.

  In addition, as described above, when a force that rotates the mast 2 due to the relative horizontal displacement of the upper layer UF and the lower layer DF is applied, the lower end side and the upper end side of the mast 2 face each other. It is pulled in the direction and acts so that the vertical distance between the upper end 2a and the lower end 2b of the mast 2 in the inclined state is shortened. In this embodiment, since the lower end side of the mast 2 is fixed to the floor surface F via the ball joint 16 and is not allowed to move up and down, the upper end 2a and the lower end 2b of the mast 2 in the inclined state are not allowed. The amount of displacement of the vertical distance is concentrated on the upper end side of the mast 2 having the upper seismic isolation support 5 that can move up and down. Therefore, the displacement amount α of the upper end 2a of the mast 2 will be described here.

  At this time, in the upper seismic isolation support 5, the slider 47 and the guide member 42 relatively move in the vertical direction, whereby the vertical distance between the upper end 2 a and the lower end 2 b of the mast 2 in the inclined state. It is possible to prevent deformation and breakage of the lower seismic isolation support 4 and the upper seismic isolation support 5, and consequently the mast 2.

  FIG. 7 is a partially enlarged conceptual view of the lift device 1 as viewed from the side, and shows a case where a swing in the front-rear direction (direction perpendicular to the beam 40) occurs with respect to the building. Similarly to the case, the ball joint 16 and the ball joint 41 rotate, and the slider 47 and the guide member 42 move in the vertical direction, whereby the vertical displacement amount α of the upper end 2a of the mast 2 is obtained. To absorb.

  The dampers 35, 35,... Are designed so as to have a predetermined height dimension at a predetermined load, so that the relative horizontal displacement of the upper layer UF and the lower layer DF is used. When this is resolved, each expands and contracts to return to a predetermined height, and the mast 2 can be self-returned to an upright state. With this self-return, the slider 47 and the guide member 42 return to a predetermined relative positional relationship.

  Further, since the slider 47 and the guide member 42 of the upper seismic isolation support portion 5 are disposed on the mast side surface 2c having a smaller displacement rate in the vertical direction than the upper and lower ends of the mast 2 when the mast 2 is inclined, the guide member The longitudinal dimension of 42 can be designed to be short, and this cost can be suppressed.

  Moreover, since the upper end side of the mast 2 is fixed to the beam member 40 which is fixed to the inner wall W of the small room R protruding to the upper layer UF, the mast 2 can be extended to the ceiling. Furthermore, since the slider 47 and the guide member 42 are relatively movable in the vertical direction, the installation position of the mast 2 can be easily adjusted.

  In the upper seismic isolation support 5, the vertical movement permitting means, in particular the slider 47 and the guide member 42 are not limited to being arranged on the side surface 2 c of the mast 2, and for example, have a configuration like the modification shown in FIG. 8. There may be. In the upper seismic isolation support portion 55 shown in FIG. 8, the first component member 430 constituting the ball joint 410 is fixed to the upper end portion 2 a of the mast 2. In addition, the second constituent member 440 constituting the ball joint 410 is formed with concave grooves 400, 400 on the side surfaces, and is fixed to the ceiling portion T of the small room R of the upper layer UF with respect to the concave grooves 400, 400. The bar-shaped guide members 420 and 420 thus formed are fitted into a groove to constitute a vertical movement allowance means.

  Furthermore, as in the modification shown in FIG. 9, the first component member 431 constituting the ball joint 411 is fixed to the ceiling portion T of the small room R of the upper layer UF, and the second component member constituting the ball joint 411. By attaching rod-shaped guide members 421 and 421 to 441, and fitting these rod-shaped guide members 421 and 421 into concave grooves 401 and 401 formed in the mast to constitute a vertical movement allowing means, the swingable means The positional relationship between the upper and lower movement permitting means may be reversed.

Further, the vertical movement allowance means is not limited to the above-described configuration as long as the mast 2 has a structure such as a linear motion bearing that can move up and down relatively with respect to the building. For example, the guide member may have a cylindrical shape. A function may be added so that the slider 47 can rotate about the guide member.
Further, for example, as in the modification shown in FIG. 10, the dampers 35, 35 are fixed by fixing the ball joint 16 ′ of the lower seismic isolation support portion 4 ′ not on the floor surface F but on the base member 15. ,... May be used as vertical movement allowance means.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the upper end side of the mast 2 is supported via the vertical movement allowing means composed of the slider 47 and the guide member 42 and the ball joint 41 which is a swingable means, and the lower end side of the mast is The structure supported by the ball joint 16 has been described. However, the present invention is not limited to this, and only the swingable means is provided on the upper end side of the mast 2, and the vertical movement allowing means and the swingable means are provided on the lower end side of the mast 2. Or a vertical movement permitting means and a swingable means may be provided on both the upper end side and the lower end side of the mast 2. The swingable means is not limited to a ball joint as long as it is a universal joint that can rotate in all directions. Further, the function as the vertical movement permitting means and the function as the swingable means may be integrated into one apparatus.

  The lower seismic isolation support 4 and the upper seismic isolation support 5 are not limited to the configuration provided at the upper and lower ends of the mast 2, and may be provided anywhere in the longitudinal direction as long as at least two locations in the longitudinal direction.

  In addition, the lift device 1 is not limited to the one in which the mast 2 is provided over the upper layer UF and the lower layer DF, and may be used by being provided from the floor in one layer of the building toward the ceiling.

DESCRIPTION OF SYMBOLS 1 Lift apparatus 2 Mast 2a Mast upper end part 2b Mast lower end part 2c Mast side surface 3 Lifting stand 4 Lower seismic isolation support part 5 Upper seismic isolation support part 16 Ball joint (oscillating means, universal joint)
35, 35, ... Damper 41 Ball joint (oscillating means / universal joint)
42 Guide member (upper / lower movement permitting means)
42a, 42a Concave groove 47 Slider (upper and lower movement allowance means)
F Floor R Small room UF Upper layer DF Lower layer W Inner wall α Displacement

Claims (4)

A lifting device with a mast extending vertically,
The mast is supported via swingable means in at least two locations in the longitudinal direction, and at least one of the two locations has a vertical movement allowance means in addition to the swingable means. A lift device characterized by being supported.   2. The lift device according to claim 1, wherein the swingable means is a universal joint, and the vertical movement allowing means is a linear motion bearing that can move up and down relatively with respect to the mast.   The lift device according to claim 1 or 2, wherein at least one end portion in the longitudinal direction of the mast is supported on the floor surface via a damper having a restoring function.   The lift device according to any one of claims 1 to 3, wherein the vertical movement allowance means is attached to a side surface of the mast.

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