JPH02188400A - Raising/lowering device for equipment - Google Patents

Abstract

PURPOSE:To easily assemble a raised/lowered body onto a link mechanism by forming a cut part into which a projection part projecting to the side of the raised/lowered body is fitted, on the free turning edge side of the link mechanism and installing a fixing means for fixing the link mechanism onto a basic board. CONSTITUTION:When the tightening force of a screw is softened by turning a dial, the turning movement of a link 22 around a supporting shaft 21 and the turning movement of a link 24 around a shaft 23 are permitted, and a link mechanism 6 is turned vertically by shifting the dial in the vertical direction. Then, a stay 4 in which a projection part 20 is supported onto the cut part 26 of the link mechanism 6 is raised and lowered, together with a scanner 13. When the screw is tightened onto the contact piece of the link mechanism 6 by turning the dial, a side plate is nipped between the contact piece and the dial, and the turning movement of the link mechanism 6 is suppressed, and a raised/lowered body 4 is fixed at an arbitrary position.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a lifting device for equipment.

Conventional technology For example, a device such as a scanner is fixed to a base such as a soccer table, and when a product is taken out from a basket placed at one end of the soccer table and transferred to a basket placed at the other end of the soccer table, the scanner is The product is placed facing the front, and product information such as the product's barcode is optically read.

Problems to be Solved by the Invention Operators who use the equipment have different heights relative to the equipment depending on their own height, and their working postures vary accordingly.Some operators may be forced to take unnatural positions, making it difficult to operate There are problems such as becoming more easily fatigued as sexual deterioration occurs.

For this reason, it has been considered to connect a support to which the equipment is fixed to a hydraulic cylinder, and drive this hydraulic cylinder with a hydraulic jack to raise and lower the equipment together with the support in accordance with the operator's height. . Although this type of device can solve the above problems, it requires a large-scale device, and the support body that holds the device and the hydraulic cylinder must be connected to each other and installed on a base such as a soccer table. Therefore, there are problems such as poor assembly workability.

Means for Solving the Problem A fitting part in which an object to be lifted and lowered including a device is fitted so as to be raised and lowered is provided on a base, and a link mechanism having joints is urged upward on this base so that it can be moved up and down. a protrusion protruding laterally on the object to be lifted and lowered, and a notch into which the protrusion is fitted on the free rotational end side of the link mechanism, the opening of the notch serves to prevent rotation of the link mechanism. A fixing means is provided to fix the link mechanism to the base, which is formed so as to face upward at the end of the range.

Since the protruding part of the object to be lifted and lowered is supported by the notch of the link mechanism, the object to be lifted and lowered including the device can be moved to an arbitrary height while rotating the link device, and then fixed by the fixing means. In addition, when the link mechanism is positioned at the end of its rotation range, the opening of the notch on the free rotation end side can be directed upward, which allows the link mechanism to be mounted independently on the base. Later, the object to be lifted and lowered can be easily assembled to the link mechanism by simply fitting the object to be lifted and lowered into the fitting part from above and fitting the protrusion into the notch.

Example An embodiment of the present invention will be described based on the drawings.

Figure 3 is a perspective view showing the overall configuration on a reduced scale.
2 is the soccer table which is the base, and 2 is the register table. A cash register 3 is placed on the register stand 2, and an object 4 to be lifted and lowered is attached to the soccer table 1 so as to be able to rise and fall freely, and a housing 5 in which a link mechanism for raising and lowering the object 4 is built in is installed. Fixed.

Next, FIGS. 1 and 2 show the support structure of the lifted and lowered object 4 and the link mechanism 6, as well as the relationship between the two. FIG. 2 is a perspective view, and the housing 5 has side plates 7.8 facing each other, and a bottom plate 1 facing a top plate 9 continuously formed on the upper edge of one of the side plates 7.
0 and a lid plate 11 that opens and closes an opening at one end using screws 12. The object 4 to be lifted and lowered is made up of a scanner 13 which is a device, and one support 14 that holds the scanner 13. The soccer table l
Fitting portions 17 and 18, which hold the support column 14 vertically movably, are fixed to the top plate 15 by screws 19. The upper fitting portion 17 is divided into two semicircular members having an angle of less than 180°, and a groove 17a with open upper and lower ends is formed between these two members. This groove 17a is
This is to allow the bottle-shaped protrusions 20 protruding from both sides to escape.

The lower fitting part 18 has a ring shape and is fixed to the bottom plate 10 and the shelf board 16 of the soccer table l.

Further, the link mechanism 6 includes a pair of opposing links 22 that are rotatably held on a fulcrum shaft 21 installed on the side plates 7 and 8, and a shaft that forms a joint at the free rotation end of these links 22. It consists of a link 24 rotatably connected by a link 23. A cutout 26 is formed at the free rotation end of the opposing link 24 so that the opening 25 is directed upward at the lowermost end (see FIG. 1). Further, the upper end of a telescoping cylinder 28 is rotatably connected to a bar 27 that connects the opposing links 24.

This cylinder 28 is biased in the extension direction so as to oppose the weight of the object 4 to be lifted and lowered, and its lower end is rotatably held by the bottom plate 10.

Furthermore, a guide plate 29 is fixed to the top plate 9, which is a guide surface that follows the vertical movement locus of the protrusion 20. Further, a contact piece 30 is fixed, which is located outside the notch 26 of one of the links 24 and abuts against the inner surface of the side plate 8 (see FIG. 2). Further, at least the front side plate 8 is formed with a long hole 31 along the support column 14 and a scale 32. The fixing means 33 for fixing the link mechanism 6 includes a dial 34 that presses the outer surface of the side plate 8;
It consists of a screw 35 protruding from the center of the dial 34 and screwed into the abutment piece 30.

In such a configuration, a product taken out from a basket (not shown) placed on one end of the soccer table l is placed on the soccer table l.
In the process of transferring the product to the basket placed on the other end, information on the product is read by the scanner 13. Scan the product 13
The operator performs the work of passing it through the front of the

During this work, the operator can raise and lower the scanner 13 together with the support 14 according to his or her height.

That is, when the dial 34 is turned to loosen the tightening force of the screw 35, the rotational movement of the link 22 around the fulcrum shaft 21 and the rotational movement of the link 24 around the shaft 23 are allowed, and the dial 34 is moved up and down. By moving in the direction, the link mechanism 6 moves up and down. Accordingly, the support 14 whose protrusion 20 is supported by the notch 26 of the link mechanism 6 is attached to the scanner 13.
It goes up and down with. Then, turn the dial 34 and tighten the screw 3.
5 is tightened to the abutment piece 30 of the link mechanism 6, the side plate 8 is clamped between the abutment piece 30 and the dial 34, thereby preventing the rotational movement of the link mechanism 6 and lifting the object 4.
is fixed at any position. When adjusting the height of the object 4 to be lifted and lowered, the links 22 and 24 rotate around the shaft 23 serving as a joint. can be moved along the support column 14.

In this way, when adjusting the height of the object 4 to be lifted and lowered, the weight of the object 4 to be lifted and lowered is supported by the cylinder 28 via the link mechanism 6, so the object 4 to be lifted and lowered can be raised and lowered with extremely light force. .

Furthermore, since a drive source is not required to move the link mechanism 6 up and down, the structure can be made smaller and simpler.

Furthermore, the link mechanism 6 can be inspected by removing the cover plate 11. When performing maintenance and inspection of the scanner 13, by positioning the link mechanism 6 at the lowest position, the scanner 13 can be easily separated from the link mechanism 6 by simply pulling the scanner 13 upward together with the support 14. That is, as shown by the solid line in FIG. 1, when the link mechanism 6 is in the lowest position, the opening 25 of the notch 26 is directed upward, so that the protrusion 20 is raised by pulling the support column 14 upward. It comes off from the notch 26. Conversely, when connecting the lifted/lowered object 4 to the link mechanism 6, the column 14 is fitted into the fitting parts 17 and 18 while the link mechanism 6 is fixed at the lowest position. In this case, the upper fitting part 17
does not interfere with the protrusion 2o due to the formation of the groove 17a,
Even if the protrusion 20 protrudes from the support column 14, it will not cause any trouble to the assembly work. When the link mechanism 6 is raised from the lowest position, the notch 26 tilts from the vertical position, and the opening 2
5 gradually turns sideways and the link device 6 is raised to the highest position as shown by the imaginary line in FIG.
turns to the side. Thereby, it is possible to prevent the lifted and lowered object 4 from being removed from the link mechanism 6 unless the link mechanism 6 is fixed at the lowest position. Further, although the scanner 13 is only held by a single wooden support 14, the rotation of the support 14 is prevented by the engagement between the notch 26 and the protrusion 20, and the orientation of the scanner 13 is fixed in a fixed direction. Can be done.

As the link mechanism 6 rotates upward, the notch 26
The notch 26 is perpendicular to the support column 14 and faces directly to the side, but two links 24 facing each other with the support support 14 in between are provided with notches 26 facing in the same direction.
By forming this, the protrusion 20 can be fitted into the bottom of the notch 26 to prevent the support column 14 from rotating. Even when the link 24 is one piece, the protrusion 20 is guided by the guide plate 29 and rises in the process of reaching the highest position where the notch 26 faces directly to the side, so the contact between the guide plate 29 and the protrusion 20 causes Rotation of the support column 14 can be reliably prevented.

Note that it is considered that the object 4 to be lifted and lowered should be connected to the link mechanism 6 within the normal height adjustment range and separated from the link mechanism 6 outside the adjustment range, so the link mechanism 6 should be raised to the highest position. When the notch 26 is lowered, the notch 26 may be vertical, and the opening 25 may face directly above, and when the lowermost position is lowered, the opening 25 of the notch 26 may be directed directly to the side. Further, instead of the cylinder 28, a spring may be used to urge the link mechanism 6 upward.

Effects of the Invention Since the present invention is configured as described above, the protrusion of the object to be lifted and lowered is supported by the notch of the link mechanism, so the object to be lifted and lowered, including the equipment, can be raised to any desired height while rotating the link mechanism. It is also possible to balance the biasing force of the link mechanism and the weight of the object to be lifted and lowered so that both can be lifted and lowered with a light force, thus eliminating the need for a power source. It is possible to achieve a reduction in size and weight, and when the link mechanism is located at the end of its rotation range, the opening of the notch on the free rotation end side can be directed upward. Accordingly, after the link mechanism is independently attached to the base, the object to be lifted and lowered is fitted into the fitting part from above and the protrusion is fitted into the notch, thereby easily assembling the object to be lifted and lowered to the link mechanism. It has effects such as being able to.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a front view of the main part with a part cut away, FIG. 2 is an exploded perspective view of the main part,
FIG. 3 is a perspective view showing the entire sliding structure on a reduced scale.

Claims (1)

[Scope of Claims] 1. A fitting part in which an object to be lifted and lowered, including equipment, is fitted so that it can be raised and lowered is provided on a base, and a link mechanism having joints is urged upward on this base to move it up and down. A protrusion protruding laterally on the object to be lifted and lowered is provided, and a notch into which the protrusion is fitted is formed on the free rotation end side of the link mechanism so that the opening of the notch A device for lifting and lowering equipment, characterized in that a fixing means is provided to fix the link mechanism to the base, the fixing means being formed so as to face upward at an end of a moving range. 2. The device for lifting and lowering equipment according to claim 1, wherein a groove is formed in the fitting portion to face the protrusion of the object to be lifted and lowered and opens in the vertical direction.