JPH10162224A - Leveling screw - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leveling screw with which the horizontal degree or height of equipment installed on the floor or passage such as an automatic vending machine, for example, can be easily adjusted by dividing the screw into screw shaft and a leg and providing a roll bearing between the screw shaft and the leg. SOLUTION: In the leveling screw for adjusting horizontal the equipment held by plural leveling screws at the lower part of equipment through the rotations of leveling screws, parts divided into screw shafts 1 and legs 2 are provided as height adjusting parts at four corners of automatic vending machine 11 and between these screw shaft 1 and legs 2, plural balls 3 are provided as the roll bearing. In such structure, the torque for rotating the screw coupling part of automatic vending machine 11 and screw shaft 1 through the effect of balls 3 as the roll bearing is enough for the rotational force of screw shaft 1 and the height can be adjusted without necessity to hold up the automatic vending machine 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leveling screw used for adjusting the level and height of equipment installed on a floor or a passage, for example, a vending machine.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a conventional leveling screw used in a vending machine. Since the installation surface of the vending machine 11 installed on the passage or the floor is not always horizontal, a leveling screw which is a height adjusting part is generally provided at the lower four corners of the vending machine 11 with a screw shaft integrated with the rotating unit 12k. The vending machine 11 is provided with the rotating unit 12k, and the level of the vending machine 11 is sometimes adjusted by rotating the rotating unit 12k.

[0003]

In the above example, turning the screw shaft while the vending machine is heavy requires a great deal of labor. Therefore, in order to easily level the vending machine, the vending machine was adjusted with the jack or the like floating. In addition, when the installation surface of the vending machine is not flat, the bottom surface of the screw shaft does not adhere to the installation surface, resulting in a point contact state, and the bottom surface that does not contact the installation surface sometimes floats.

[0004] It is an object of the present invention to provide a leveling screw in which the level of the installation equipment can be easily adjusted and the bottom surface of the screw shaft can be in close contact with an inclined installation surface.

[0005]

According to the present invention, there is provided a leveling screw for horizontally adjusting a device supported by a plurality of leveling screws below the device by rotation of the leveling screw, wherein the leveling screw is divided into a screw shaft and a foot, In this structure, a rolling bearing is provided between the screw shaft and the foot.

According to a second aspect of the present invention, there is provided a leveling screw in which a device supported by a plurality of leveling screws below the device is horizontally adjusted by rotation of the leveling screw, wherein the leveling screw is divided into a screw shaft and a foot. A bending means is interposed in the joint between the shaft and the foot, so that the foot can be bent and can be in close contact with an oblique installation surface.

According to a third aspect of the present invention, in the leveling screw according to the second aspect, the bending means is formed such that the screw shaft and the foot have an uneven fitting in the axial direction, and are fitted at right angles to the axial center. A pin is provided to penetrate the part, and the foot can be bent with respect to the screw shaft. According to a fourth aspect of the present invention, in the leveling screw according to any one of the first to third aspects, the device is a vending machine.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention divides a conventional screw shaft into a foot and a screw shaft, and provides a rolling bearing between two parts even if the foot does not completely float to facilitate rotation of the screw shaft. The purpose is to make the screw shaft and the foot bendable so that the foot adheres to the diagonal floor.

[0009]

【Example】

Embodiment 1 FIG. 1 shows an embodiment of the present invention. A screw shaft 1 and a foot 2 are provided instead of the screw shaft 12 of FIG. 3 as a height adjusting part of the vending machine 11, and a plurality of balls 3 are provided between the screw shaft 1 and the foot 2 to form a rolling bearing.
According to this structure, the rotational force of the screw shaft 1 is only required to rotate the screw connecting portion between the vending machine 11 and the screw shaft 1 by the effect of the ball 3 of the rolling bearing, and becomes half of the torque of FIG. The height can be adjusted without having to lift the machine 11.

Embodiment 2 FIG. 2 shows another embodiment of the present invention. In place of the screw shaft 12 of FIG. 3 as a height adjusting part of the vending machine 11, a screw shaft 5 and feet 7 are provided,
The protrusion of the screw shaft 5 is inserted into the recess of the foot 7 and is connected by the pin 9. The strength of the screw shaft 5, the feet 7 and the pins 9 withstands the weight of the vending machine 11, and the screw shaft 5 can be rotated by the rotation of the feet 7 without any trouble.

According to this structure, when the screw shaft 5 is rotated without lifting the vending machine 11, the rotational force is the same as in FIG. 3, but since the foot 7 and the screw shaft 5 are connected by the pins 9, the installation surface Is inclined, the bottom surface of the foot 7 can be in close contact with the installation surface. Since it is not necessary to strictly adjust the level of the vending machine 11, the pin is turned in the bending direction of the foot 7 by a half turn or less of the screw.

[0012]

According to the first aspect of the present invention, since the rolling bearing is provided on the leveling screw, the rotational torque of the leveling screw is reduced to half that of the conventional leveling screw, and the height can be adjusted without having to float the equipment. According to the invention of claim 2, since the foot can be bent, as a specific example, according to the invention of claim 3, since the foot and the screw shaft are connected by the pin, even if the installation surface is inclined, the foot can be moved up to half a turn. The device can be supported by turning the foot so that the bottom surface of the foot is in close contact with the installation surface, and a leveling screw less restricted by the installation surface can be provided.

According to the fourth aspect, it is possible to provide an easy-to-use leveling screw by specifying an apparatus as a vending machine.

[Brief description of the drawings]

FIG. 1 is a structural sectional view of an embodiment of the present invention.

FIG. 2 is a structural sectional view of another embodiment of the present invention.

FIG. 3 is a structural sectional view of a conventional leveling screw.

[Explanation of symbols]

 1 screw shaft 2 feet 3 balls 5 screw shaft 7 feet 9 pin 11 vending machine 12 screw shaft 12k rotating part

Claims (4)

[Claims] 1. A leveling screw for horizontally adjusting a device supported by a plurality of leveling screws at a lower portion of the device by rotation of the leveling screw, wherein the leveling screw is divided into a screw shaft and a foot. A leveling screw, wherein a rolling bearing is provided on the leveling screw. 2. A leveling screw for horizontally adjusting a device supported by a plurality of leveling screws under the device by rotating the leveling screw, wherein the leveling screw is divided into a screw shaft and a foot, and the screw shaft is connected to the foot. A leveling screw, wherein a bending means is interposed in the portion, and the foot is bendable and can be in close contact with an oblique installation surface. 3. The leveling screw according to claim 2, wherein the bending means is provided with a pin formed so that the screw shaft and the foot have an uneven fit in the axial direction, and a pin penetrating the fitting portion at a right angle to the axial center. A leveling screw characterized in that the foot can be bent with respect to the screw axis. 4. The leveling screw according to claim 1, wherein the device is a vending machine.