KR100224394B1 - Movement jack for tire change works - Google Patents

Abstract

The present invention relates to a mechanism for replacing tires for automobiles, wherein a tire can be placed and moved when replacing a tire of a vehicle, and can be lifted to provide a convenience for an operator and at the same time a movable jack for replacing tires, which improves work efficiency. It aims to provide.

The present invention is a means for solving the above-described technical problem, a mounting wheel, a moving wheel for supporting and rotating the mounting stand, a drive motor, a gear box installed on the mounting stand, and built in the gear box and the drive motor A pinion gear that rotates in accordance with the rotation of the gear, a rack gear engaged with the pinion gear and reciprocating in a vertical axis, a tire support integrally reciprocating according to the reciprocating motion of the rack gear, and the forward rotation of the drive motor and It provides a movable jack for tire replacement work comprising a switch box for controlling the reverse rotation.

By providing a movable jack for tire replacement work of the above-described configuration, if the tire movement and lifting is necessary by measuring and correcting the wheel balance during tire replacement work, so as to help the worker's work convenience and increase work efficiency It was.

Description

Removable jack for tire replacement

The present invention relates to a mechanism for replacing a tire for a vehicle, wherein a tire can be placed and moved when replacing a tire of a vehicle, and can be lifted to provide a convenience for the operator and at the same time a movable jack for tire replacement which improves work efficiency. It aims to provide.

In general, when replacing tires for cars, balance weights should be installed in advance to balance the wheels beforehand.

This process first checks the balance by mounting a new tire to be replaced in a stationary wheel balancer and measuring the roundness of the tire and wheel rim while rotating it.

Next, if the balance is suitable, the vehicle is mounted with tires, and if it is not, find the position to install the counterweight and attach it to the wheel to make the balance and then install and operate the vehicle.

For this replacement, carry the new tire to the wheel balancer, lift it, insert it into the rotating shaft of the wheel balancer, rotate it, check the balance of the wheels, and when the balancing operation is finished, the position of the vehicle to be mounted by lowering the tire from the wheel balancer After moving to, the tire is installed on the vehicle according to the conventional method.

Therefore, in this process, the worker moves the tires up and down, and also accompanied by the inconvenience of lifting and lowering the physical burden on the worker, the efficiency for the work is also reduced, there is a risk of accident during work.

Therefore, there has been a need for the development of a device to improve this conventional inconvenience.

The present invention provides a movable jack for a tire replacement operation to increase the work efficiency by facilitating the transportation and lifting of the tire in the case of measuring the balance of the tire during the operation of replacing the tire of the vehicle, according to the above-described conventional requirements. It is technical problem to do.

Figure 1a is a state in which a removable jack for tire replacement work according to the present invention is raised

Figure 1b is a state in which the removable jack for replacing the tire according to the invention lowered

2 is a circuit diagram for adjusting the movable jack for tire replacement work according to the present invention.

* Explanation of symbols for main parts of the drawings

1: drive motor 2: gearbox

3: pinion gear 4: rack gear

5: switch box 6: mounting table

7: wheel for movement 8: tire support

9: tires

The present invention is a means for solving the above technical problem, the mounting table (6), the wheel for movement to support and rotate the mounting table, the drive motor (1), the gear box (2) installed on the mounting table and And a pinion gear (3) embedded in the gearbox and rotating in accordance with the rotation of the drive motor, a rack gear (4) engaged with the pinion gear and reciprocating in a vertical axis, and a reciprocating motion of the rack gear. According to the present invention, a tire jack 8 for reciprocating and a switch box 5 for controlling forward and reverse rotation of the drive motor are provided.

Hereinafter will be described the configuration and operating state of the movable jack for tire replacement work according to the present invention.

The drive motor 1 may be either a direct current type or an alternating current type, as a motor that enables forward rotation and reverse rotation by switch control.

The gearbox 2 has a gear mechanism and is intended to contain at least one pinion. In addition, several gear units can be added to reduce the speed and increase the driving force. The exterior is cased for safety and device protection.

The pinion gear 3 in the gearbox moves in pairs with the rack gear 4 installed in the longitudinal axis direction, and functions to convert the rotational force of the motor into a reciprocating motion of the longitudinal axis.

The rack gear 4 serves to receive the load of the wheel together with the longitudinal axis and to reciprocate by the rotational movement of the pinion.

The pedestal 8 is installed on the longitudinal axis to move up and down by the reciprocating motion of the rack gear, and to raise the tire 9 thereon.

The tip on which the tire 9 of the pedestal 8 is placed is formed in a circumferential shape, and is configured to prevent the tire from being separated during operation.

The place for installing these devices is a mounting table (6), the mounting table has a wheel (7) for movement on the ground side to facilitate the movement of the device.

The switch box 5 includes a switch button and a switching mechanism for rotating the driving motor forward and reverse.

The switching mechanism used when the motor is used as a DC motor has a configuration as shown in FIG. 2, and the movable terminals 10 and 10 ′ are configured to be interlocked with each other as the external switch button is pressed. When connected to the a and c sides, the direction of the current flowing through the motor and the direction of the current flowing through the motor when connected to the b and d sides are opposite to each other, thereby controlling the forward and reverse rotation of the driving motor.

The switch box 5 may be installed to be fixed around the gearbox or the driving motor, and may also be connected to the driving motor by a wire and installed in a remote controller type.

By providing a movable jack for the tire replacement operation of the above-described configuration, if the tire movement and lifting is necessary by measuring and correcting the wheel balance during the tire replacement operation, to help the worker's work convenience and increase the work efficiency It was.

Claims (2)

A mounting table (6), a wheel (7) for supporting the mounting table (6) to enable rolling, and a rack gear (4) mounted on the mounting table (6) so as to be able to be lifted and lowered, A pinion gear 3 engaged with the size gear 4, a drive motor 1 for driving the pinion gear 3, and a switch box 5 for controlling forward and reverse rotation of the drive motor 1; And a tire support (8) mounted to the front end of the rack gear (4) to move up and down integrally. The movable jack of claim 1, wherein the tire support is formed to be curved to correspond to the curvature of the tire.