JPH0725520B2 - Equipment lifting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for equipment.

Conventional technology For example, a device such as a sukiyana is fixed to a base such as a sacker stand, and in the process of transferring a product taken from a basket placed on one end of the sacker stand to a basket placed on the other end of the The product is faced to the front and the product information such as the barcode of the product is optically read.

Problems to be Solved by the Invention An operator who uses a device is different in height relative to the device depending on his / her height, and accordingly, a work posture is also different, and the operator is forced to have an unnatural posture. Therefore, there is a problem that the operability is deteriorated and fatigue is likely to occur.

For this reason, it is considered that the support body to which the equipment is fixed is connected to the hydraulic cylinder and the equipment is moved up and down together with the support body according to the height of the operator by driving the hydraulic cylinder with the hydraulic jack. . Although such a thing can solve the above-mentioned problem, it requires a large-scale device, and the support for holding the equipment and the hydraulic cylinder must be connected to each other while being attached to a base such as a saucer stand. Therefore, there is a problem that assembly workability deteriorates.

Means for Solving the Problems A fitting portion in which an object to be lifted including equipment is fitted so as to move up and down is provided on a base, and a link mechanism having a joint on the base is biased upward to be pivotable up and down. A protrusion protruding laterally to the lifted body, and a notch in which the protrusion is fitted is provided on the free end side of the rotation of the link mechanism, and the opening of the notch rotates the link mechanism. A fixing means for fixing the link mechanism to the base is provided so that the direction is determined so as to face upward at the end of the range.

Action Since the protrusion of the lifted body is supported by the notch of the link mechanism, the lifted body including the device can be moved to an arbitrary height and fixed by the fixing means while rotating the link mechanism. Further, when the link mechanism is positioned at the end of the rotation range, the opening of the notch on the rotation free end side can be directed upward, which allows the link mechanism to be independently attached to the base. After that, the lifted body can be easily assembled to the link mechanism simply by fitting the lifted body into the fitting portion from above and fitting the protrusion into the notch.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

FIG. 3 is a perspective view showing the entire structure in a reduced scale.
Is a sacker stand which is a base, and 2 is a register stand. A cash register 3 is mounted on the register base 2, and an object 4 to be lifted and lowered is attached to the sacker base 1 so as to be able to move up and down, and a casing 5 having a built-in link mechanism for moving the object 4 up and down is installed. Is fixed.

Next, FIGS. 1 and 2 show the supporting structure of the lifted body 4 and the link mechanism 6 and the relationship between them. FIG. 2 is a perspective view, and the casing 5 includes side plates 7 and 8 facing each other, and a bottom plate 10 facing a top plate 9 continuously formed on an upper edge of one side plate 7.
And a lid plate 11 that opens and closes the opening surface at one end, are assembled by screws 12. The lifted body 4 is
It is composed of a device 13, which is a device, and a single column 14 that holds the device 13. On the top plate 15 of the sacker stand 1, there are fitting parts 17 and 18 for holding the support column 14 so as to be movable up and down.
Fixed by 9. The upper fitting portion 17 is divided into two semicircular members that are less than 180 °, and a groove 17a whose upper and lower ends are open is formed between these two members. This groove 17a is a pin-shaped protrusion 20 that protrudes from both sides of the column 14.
Is to miss. The lower fitting portion 18 has a ring shape and is fixed to the bottom plate 10 and the shelf plate 16 of the sacker stand 1.

The link mechanism 6 is a pair of links that are rotatably held by fulcrum shafts 21 provided on the side plates 7 and 8 and face each other.
22 and a link 24 rotatably connected to the free ends of the links 22 by a shaft 23 serving as a joint. An opening 25 is formed at the lowermost end of the free ends of the links 24 facing each other.
A notch 26 is formed that is oriented so that is directed upward (see FIG. 1). Also, links facing each other
An upper end of a telescopic cylinder 28 is rotatably connected to a bar 27 connecting the 24. The cylinder 28 is biased in the extending direction so as to face the weight of the lifted body 4, and the lower end thereof is rotatably held by the bottom plate 10. Further, a guide plate 29, which is a guide surface along the vertical movement path of the protrusion 20, is fixed to the top plate 9. Further, a contact piece 30 located outside the notch 26 of one of the links 24 and abutting against the inner surface of the side plate 8 is fixed (see FIG. 2). Further, at least the front side plate 8 is provided. A long hole 31 and a scale 32 are formed along the pillar 14.
The fixing means 33 for fixing the link mechanism 6 includes a dial 34 that presses the outer surface of the side plate 8 and a screw 35 that projects from the center of the dial 34 and is screwed into the contact piece 30.

In such a configuration, the product taken out from the basket (not shown) placed on one end of the sasker table 1
The product information is read by the scanner 13 in the process of transferring to the basket placed on the other end of the. The operator carries out the work of passing the product through the front of the scanner 13.

During this work, the operator can move the scanner 13 up and down together with the column 14 according to his / 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. The link mechanism 6 is vertically rotated by moving in the direction. Along with this, the column 14 whose projection 20 is supported by the notch 26 of the link mechanism 6 moves up and down together with the scanner 13. And
When the dial 34 is turned and the screw 35 is tightened to the contact piece 30 of the link mechanism 6, the side plate 8 is clamped between the contact piece 30 and the dial 34, whereby the pivotal movement of the link mechanism 6 is prevented, The lifted body 4 is fixed at an arbitrary position. When the height of the lifted body 4 is adjusted, the links 22 and 24 rotate about the shaft 23 serving as a joint.
It is possible to move the contact piece 30 screwed together with the support piece 14 along the pillar 14.

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

Further, since a drive source is not required to move the link mechanism 6 up and down, it is possible to reduce the size and simplify the structure.

Further, the link mechanism 6 can be inspected by removing the cover plate 11. For maintenance and inspection of Sukiana 13,
By positioning the link mechanism 6 at the lowest position, the scanner 13 can be easily separated from the link mechanism 6 simply by pulling it up together with the column 14. That is,
As shown by the solid line in FIG. 1, when the link mechanism 6 is located at the lowest position, the opening 25 of the notch 26 is directed upward, so that the protrusion 20 is lifted by pulling the column 14 upward. Remove from notch 26. On the contrary, when the lifted body 4 is connected to the link mechanism 6, the support column 14 is fitted to the fitting portions 17 and 18 with the link mechanism 6 fixed at the lowest position.
In this case, the upper fitting part 17 is formed with the groove 17a so that the projection 2
Since it does not interfere with 0, even if the protrusion 20 projects from the column 14, it does not hinder the assembly work. Link mechanism 6
Is raised from the lowermost position, the notch 26 is inclined from the vertical state, the opening 25 is gradually turned sideways, and the link mechanism 6 is moved to the first position.
As shown by the phantom line in the figure, the opening 25 faces right side when raised to the highest position. As a result, unless the link mechanism 6 is fixed at the lowest position, the lifted / lowered body 4 is not moved.
Can be prevented from being removed. Also, Sukiyana
13 is only held by one post 14, but notches
By fitting the protrusions 20 and the protrusions 26, the support 14 can be prevented from rotating, and the scanner 13 can be fixed in a fixed direction. Further, as the link mechanism 6 rotates upward, the notch 26 is orthogonal to the column 14 and faces directly to the side. Thus, the protrusion 20 can be fitted into the bottom of the notch 26 to prevent the support 14 from rotating. Even if there is only one link 24, the protrusion 26
Since 20 is guided by the guide plate 29 and rises, this guide plate 29
The rotation of the column 14 can be reliably prevented by the abutment of the protrusion 20 with the protrusion 20.

Since it is considered that the lifted body 4 can be connected to the link mechanism 6 within the normal height adjustment range and separated from the link mechanism 6 outside the adjustment range, the link mechanism 6 is lifted to the highest position. The notch 26 vertically when opening
The opening 25 of the notch 26 may be directed to the side when the 25 is directed right above and lowered to the lowest position. Further, instead of the cylinder 28, a spring may urge the link mechanism 6 upward.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, since the protrusion of the lifted body is supported by the notch of the link mechanism, the lifted body including the device can be moved to any height while rotating the link mechanism. It can be moved to and fixed by the fixing means, and the urging force of the link mechanism and the weight of the lifted body can be balanced to raise and lower both with a light force, thus omitting the power source. It is possible to reduce the size and weight, and further, in the state where the link mechanism is positioned at the end of the rotation range, the opening of the notch on the rotation free end side can be directed upward, As a result, after the link mechanism is individually attached to the base, the lifted body is fitted into the fitting portion from above and the protrusion is fitted into the notch, so that the lifted body is easily assembled to the link mechanism. It has the effect of being able to.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view of a main part with a part in section, and FIG. 2 is an exploded perspective view of the main part.
FIG. 3 is a perspective view showing the entire structure in a reduced scale. 1 ... Base, 4 ... Lifted object, 6 ... Link mechanism, 13 ...
… Equipment, 17 …… Mating part, 17a …… Groove, 18 …… Mating part, 20
...... Projection, 23 ...... Joint, 25 ...... Opening, 26 ...... Notch,
29 …… Guide surface, 33 …… Fixing means

Claims (3)

[Claims] 1. A fitting portion in which an object to be lifted up and down including equipment is fitted in a vertically movable manner is provided on a base, and a link mechanism having a joint is provided on the base so as to be vertically rotatable by being biased upward. A protrusion protruding laterally is provided on the lifted body, and a notch in which the protrusion is fitted is provided on the pivoting free end side of the link mechanism so that the opening of the notch is within the rotation range of the link mechanism. An elevating device for an apparatus, characterized in that a fixing means for fixing the link mechanism to the base is formed so as to face upward at an end portion. 2. The fitting portion is formed with a groove that opens in the up-down direction so as to face the protrusion of the lifted body.
Lifting device for the listed equipment. 3. A guide surface fixedly contacting the protrusion along the moving direction of the lifted body is provided.
Or the lifting device for the equipment according to 2.