JPH0647899Y2 - Case lifting device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating device for a case containing various documents, articles and the like.

[0002]

2. Description of the Related Art Conventionally, in a case lifting device of this type, a pair of case support forks projecting in parallel with each other from a lifting block which moves up and down along a column provided in the device has a constant interval, and the case supporting forks are of the same type. The case was supported by supporting arms.

[0003]

In the conventional case raising / lowering device, the distance between the pair of case supporting forks cannot be adjusted, and it can be applied to only one of the vertical and horizontal cases. It was The present invention has been proposed in view of such circumstances, and its object is to apply it to a case in both vertical and horizontal directions by changing the width between a pair of case support forks with a simple structure. The point is to provide a case lifting device.

[0004]

In order to achieve the above-mentioned object, a case lifting device according to the present invention comprises a lifting block movably mounted along a column, and a pair of left and right case supporting forks. A supporting arm projecting inwardly at a right angle from the end is rotatably supported, and a vertical case supporting piece is attached to the vertical side surface of each case supporting fork.
The horizontal top surface is provided with a lateral case to prevent the fall of the case, and the lifting block is provided with a drive device for rotating the forks in mutually opposite directions.

[0005]

Since the present invention is constructed as described above,
The drive devices are actuated to rotate the pair of case support forks inward, respectively, to reduce the width of the case support forks, and to oppose both of the opposing support forks protruding from the vertical side surfaces of the support forks. The vertical case is supported between the vertical case support pieces.

Further, the drive devices rotate the pair of case support forks to the outside respectively to increase the widths of both case support forks, and support the case in the lateral direction across the horizontal top surfaces of the support forks. In addition, the fall prevention piece provided on the horizontal top surface prevents the case from falling.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. Reference numeral 1 is a traveling base, 2 is a pillar standing on the same base 1, and an elevating block 4 on which left and right case supporting forks 3 and 3'are mounted is vertically mounted. Reference numeral 5 is a control unit of the elevator block, 6 is an operation handle of the elevator block, and 7 is a handle for moving the traveling platform 1.

Each of the forks 3 and 3'is formed in a rectangular cross section, and an L-shaped vertical case support piece 8 is projectingly provided on each outer vertical surface, and a horizontal case fall prevention piece 9 is provided on the horizontal top surface. It is projected. FIG. 3 shows the case support forks 3,
3'shows a drive device for each case supporting fork 3,
At the base end of 3 ', supporting arms 10 and 10' are projectingly provided at right angles to the forks 3 and 3 ', respectively, and rotary shafts 11 and 11' of the supporting arms 10 and 10 'are provided on the lifting block 4. Bearing tube 1
2, 12 'are rotatably fitted and one rotary shaft 11'
A drive gear 14 that meshes with a gear 13 mounted on the upper and lower blocks 4 is mounted on a pivot 15 rotatably mounted on the lifting block 4, and the other rotary shaft 11 in the lifting block 4 is mounted.
An endless chain band 17 is laid between the driven gear 16 fitted to the drive gear 14 and the drive gear 14, and the open / close lever 18 mounted on the pivot 15 of the lifting block 4 is operated to operate the same. Rotate the gears 13, 14,
The pair of cases are configured to simultaneously rotate the support forks 3 and 3 ′ in directions opposite to each other through the 16 groups and the endless chain band 17.

Since the illustrated embodiment is constructed as described above, when it is applied to the vertical movement of the case A, as shown in FIG. By rotating the case support forks 3, 3 ′ inward, the space between the case support forks 3, 3 ′ is narrowed, and the case support forks 3, 3 which face the upper end outer peripheral protruding edge a of the case A in the vertical direction. The vertical movement of the case A is performed in a stable state on each of the vertical case support pieces 8 '.

When the case A'is moved up and down in the lateral direction, as shown in FIG. 5, the opening / closing lever 18 is pivoted in the opposite direction to the front so that the pair of case supporting forks 3, 3'are brought into contact with each other. Both case support forks 3
The width between 3'is widened, and the upper end outer peripheral protruding edge a of the case A'in the lateral direction is supported on the horizontal top surfaces of the case supporting forks 3, 3'which face each other. At this time, the lateral case fall prevention piece 9 supports the lateral case A'in a stable state between the case support forks 3 and 3 ', and the lifting operation is performed.

Since the raising / lowering operation of the cases A and A'is substantially the same as that of the known quark lift, the description thereof will be omitted.

[0012]

According to the present invention, the vertical block supporting piece is attached to the vertical side surface of the elevating block mounted on the column as described above, and the horizontal case rolling prevention piece is attached to the horizontal top surface. The left and right case support forks provided are rotated in opposite directions via a drive device mounted on the elevating block to change the width between the case support forks. The horizontal case can be stably supported and lifted by a single device with a simple structure and operation.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a case lifting device according to the present invention.

FIG. 2 is a perspective view of FIG. 1 viewed from the opposite side.

FIG. 3 is a perspective view showing a drive device for a case support fork.

FIG. 4 is a perspective view showing an embodiment in which the present invention is applied to handle a vertical case.

FIG. 5 is a perspective view showing an embodiment in which the present invention is applied to handle a lateral case.

[Explanation of symbols]

 1 Traveling Platform 2 Supports 3, 3'Case Supporting Fork 4 Lifting Block 5 Control Unit of Lifting Block 6 Lifting Block Operation Handle 7 Traveling Platform Moving Handle 8 Longitudinal Case Supporting Piece 9 Horizontal Case Fall Prevention Pieces 10, 10 ′ Support arm 11, 11 ′ Rotating shaft 12, 12 ′ Bearing tube 13 Gear 14 Drive gear 15 Axis 16 Driven gear 17 Endless chain band 18 Opening / closing lever A Vertical case A ′ Lateral case a Upper end outer peripheral edge

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Shoji Sato 2-11-9 Sakaemachi, Fuchu-shi, Tokyo 102 Tomiso, 102 (72) Creator Shoichi Watabiki 15-2-105 (72) Tsurugadai, Chigasaki-shi, Kanagawa Kenji Hirama 4-7-22 Sagamihara, Sagamihara-shi, Kanagawa 101-7 Sagamihara, Fusezeri (72) Isamu Yoshikawa 4-37 Nijigahama, Hiratsuka-shi, Kanagawa Prefecture (72) Toshio Hirota 3001 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa

Claims (1)

[Scope of utility model registration request] 1. A support arm rotatably pivotally supported on an elevating block movably mounted along a column and projecting inward at right angles from the respective base end portions of a pair of left and right case support forks. ,
A vertical case support piece is attached to the vertical side surface of each case support fork, and a horizontal case fall prevention piece is provided on the horizontal top surface so as to project the forks in opposite directions to each other on the lifting block. A case lifting device, characterized in that a drive device for rotating is mounted.