JP3084684U - Automotive garage jack - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To simplify the work of arranging a garage jack at a predetermined position below a vehicle body of an automobile. SOLUTION: When a rear end of a lifting arm 2 and a driving mechanism 11 are mounted between left and right side plates 1, a receiving member 9 is mounted on a front end of the lifting arm 2, and the lifting arm 2 is rotated by the driving mechanism 11, a vehicle body of an automobile is obtained. In the garage jack in which the receiving member 9 applied to the jack point on the lower surface rises upward and rearward, and the front wheel 21 and the rear wheel 22 are attached to the front and rear outside positions of the both side plates 1, respectively,
A front wheel cover 23 that covers the upper side of the front wheel 21 is attached, and mirrors 31 that capture jack points on the lower surface of the body of the vehicle are attached to the rear portions of the left and right front wheel covers 23 at an angle rearward and downward, respectively. In between, a lighting device 41 for illuminating the vicinity of the jack point on the underside of the vehicle body was mounted.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a garage jack that is inserted under a car and lifts the edge of the car.

[0002]

[Prior art]

 In garage jacks for automobiles, lifting arms are arranged in the front-rear direction between the left and right side plates that are long in the front-rear direction, and the rear upper end of the lifting arm can be rotated on the arm shaft that extends in the left-right direction between the upper ends of both side plates. The center of the cradle is rotatably mounted on the cradle shaft attached to the front end of the lifting arm in the left and right direction, and the front end of the link bar is rotatably mounted on the shaft mounted in the left and right direction on the lower end of the cradle. The rear end of the link rod is rotatably mounted on a shaft attached to the left and right direction below the arm axis of the side plate. A receiving member that hits a jack point on the underside of the vehicle body is detachably mounted on the cradle.

When the lifting arm arranged between the front portions of the both side plates is rotated around the arm axis and the front end of the lifting arm is moved upward and backward, the cradle and the receiving member thereon maintain the posture. Ascend upward and backward.

[0004] A hydraulic drive mechanism is provided between the rear portions of the both side plates. The hydraulic drive mechanism allows the piston to be pushed out by hydraulic pressure. The front end of the piston protruding to the front side of the hydraulic drive mechanism is connected to the rear lower end of the lifting arm. The lifting arm is rotated when moving forward.

In the hydraulic drive mechanism, a hydraulic cylinder is provided in the front-rear direction, a piston is fitted to the hydraulic cylinder, a front end of the piston protrudes in front of the hydraulic cylinder, an oil tank is provided outside the hydraulic cylinder, and an oil tank is provided. A plunger pump is provided in the passage that supplies the oil in the tank to the hydraulic cylinder, and a relief valve is provided in the passage that returns the oil in the hydraulic cylinder to the oil tank.

When the tip of a rod-shaped handle is connected to a socket swingably mounted on the upper side of the plunger pump, and the rear part of the handle is moved up and down, the plunger pump is activated by the swing of the socket, and the oil in the oil tank is drained. The hydraulic cylinder is supplied to the hydraulic cylinder, and the piston of the hydraulic cylinder is pushed forward. Then, the lifting arm rotates around the arm axis, and the pedestal and the receiving member ascend upward and backward while maintaining their posture.

A front wheel and a rear wheel are respectively attached to outer positions of a front portion and a rear portion of the both side plates.

The garage jack is mainly used in a garage, and a front portion is inserted under a vehicle body and is arranged at a predetermined position with a receiving member lowered, and a rear portion of a handle of a hydraulic drive mechanism is provided. Is moved up and down to raise the receiving member, hit the receiving member against the jacking point on the underside of the vehicle body, and lift the end of the vehicle.

[0009]

[Problems to be solved by the invention]

 However, when the garage jack as described above is used, the jack point on the underside of the vehicle body is difficult for an operator to visually recognize because the ground height of the vehicle body is low and the underside of the vehicle body is dark.

[0010] In a recently increased automobile having a very low minimum ground clearance or an automobile having a lower skirt attached to the periphery of the lower surface of the vehicle body, it is almost impossible to visually check the jack point on the lower surface of the vehicle body. .

[0011] Therefore, the worker puts his hand under the body of the automobile, checks the position of the jack point on the underside of the vehicle by groping, and places the garage at a position where the raised receiving member is thought to hit the jack point. Place the jack.

[0012] Accordingly, the work of disposing the garage jack at a predetermined position below the body of the automobile requires a lot of trouble in addition to soiling of hands.

[0013]

[Efforts to solve the problem]

 When placing the garage jack at a predetermined position under the car body, the operator can adjust the garage jack placement position while visually checking the jack point on the underside of the car body, making it easy to place the garage jack. become.

[0014] Therefore, a mirror is mounted on the front of the garage jack to be inserted under the body of the automobile, and an operator who adjusts the arrangement position of the garage jack uses a mirror on the front of the garage jack to set a jack point on the underside of the body. I came up with a configuration that can be seen.

Further, if the vicinity of the jack point on the underside of the vehicle body of the automobile is bright, the jack point becomes easily visible.

[0016] Therefore, it has been devised that a lighting device is mounted on a front portion of a garage jack inserted under a vehicle body of an automobile, and the lighting device illuminates a vicinity of a jack point on a lower surface of the vehicle body.

[0017]

[Means for Solving the Problems]

 1) Attach the rear end of the lifting arm and the drive mechanism between the left and right side plates and attach the receiving member to the front end of the lifting arm. When the lifting arm is rotated by the driving mechanism, the receiving member contacts the jack point on the underside of the vehicle body. In the garage jack for an automobile, the mirror that captures the jack point on the underside of the vehicle is mounted diagonally at the front of the vehicle garage jack.

2) In the above-mentioned garage jack for an automobile, a lighting device for illuminating a vicinity of a jack point on a lower surface of the automobile body is attached to a front portion to be inserted under the automobile body.

3) In the garage jack for an automobile described above, the mirror is a convex mirror whose rear-downward direction is expanded.

4) In the garage jack for an automobile described above, the mirror can adjust the angle of the rearward downward movement.

5) In the garage jack for an automobile described above, the mirrors are respectively attached to the outer positions of the front portions of both side plates.

6) A rear end of the lifting arm and a driving mechanism are mounted between the left and right side plates, a receiving member is mounted on a front end of the lifting arm, and the lifting arm is rotated by the driving mechanism. The garage jacks for automobiles have front and rear wheels attached to the outside of the front and rear sides of both side plates, with the receiving members ascending upward and rearward, and cover the upper sides of the left and right front wheels on both side plates, respectively. Attach the left and right front wheel covers, and at the rear of both the left and right front wheel covers, attach the mirrors, which represent the jack points on the underside of the car body, to the rear and diagonally. A lighting device was installed to illuminate the area near the jack point on the underside.

[0023]

[Effect of the invention]

 1) When placing the garage jack for a car at a predetermined position below the body of the car, the operator arranges the garage jack while visually observing the jack point on the underside of the car body with a mirror in front of the garage jack. The position can be adjusted.

2) When the lighting device at the front of the garage jack for a vehicle illuminates the vicinity of the jack point on the underside of the vehicle body, the jack point becomes easily visible.

3) The field of view in the front-back direction is widened, and it is easy to find jack points.

4) The field of view in the front-rear direction can be adjusted back and forth, and the present invention can be used for various types of automobiles having different jack point positions.

5) The visual field in the left-right direction is widened, and it is easy to find jack points.

6) The front wheel cover is used for mounting the mirror and the lighting device, and the mounting structure is simplified. After all, when placing the garage jack for a car at a predetermined position below the body of the car, the hands are not stained and a lot of trouble is saved.

[0029]

[Embodiment of the invention]

 Automotive garage jacks are hydraulically driven for use with vehicles weighing less than 2 tons.

As shown in FIG. 1 and FIG. 2, the side plates 1 that are long in the front-rear direction are arranged side by side on both sides of the spacing member. Between the front portions of the left and right side plates 1, a lifting arm 2 having a gate-shaped cross section is arranged in the front-rear direction, and the rear upper end of the tapered lifting arm 2 is penetrated left and right between the upper ends of the both side plates 1. And is rotatably attached to the arm shaft 3 which is extended.

At the front end of the lifting arm 2, a pedestal shaft 4 is mounted so as to penetrate in the left-right direction, the pedestal 5 is rotatably mounted on the pedestal shaft 4, and the pedestal 5 is located between the side plates 1. It is located at

At the lower front end of the pedestal 5, a shaft 6 is mounted so as to penetrate in the left-right direction. At both ends of the shaft 6, front ends of link bars 7 are rotatably mounted, respectively. Are rotatably mounted on a shaft 8 which is mounted on the same side plate 1 at the front position below the arm shaft 3 in the left and right direction, respectively, and each link bar 7 is connected to the same side plate 1 and lifting arm 2 respectively. And between them.

A receiving member 9 that contacts a jack point on the underside of the vehicle body of the automobile is detachably mounted on the receiving stand 5.

That is, when the lifting arm 2 is rotated around the arm axis 3 and the front end of the lifting arm 2 is moved upward and backward as shown in FIG. 3, the receiving table 5 and the receiving member 9 thereon are moved. The parallel crank mechanisms 1 to 8 which rise upward and backward while maintaining the posture are configured.

A hydraulic drive mechanism 11 for the lifting arm 2 is attached between the rear portions of the side plates 1, and a piston 12 protruding forward of the hydraulic drive mechanism 11 is lowered as shown in FIGS. 1 and 2. The shaft 13 is mounted on the front end of the piston 12 in the left-right direction, and the front ends of the connecting rods 14 are rotatably mounted on both ends of the shaft 13, respectively. 14 are rotatably attached to shafts 15 attached to the left and right sides at the rear lower ends of both side plates of the lifting arm 2, respectively.

That is, the front end of the piston 12 is connected to the rear lower end of the lifting arm 2 via the shaft 13, the connecting rod 14 and the shaft 15, and the lifting arm 2 is rotated by the advance of the piston 12.

The hydraulic drive mechanism 11 has a hydraulic cylinder provided in the front-rear direction, a piston 12 fitted in the hydraulic cylinder, a front end of the piston 12 protruding from the front side of the hydraulic cylinder, and an oil tank provided around the hydraulic cylinder outside the hydraulic cylinder. A plunger pump 16 is provided in a passage for supplying the oil in the oil tank to the hydraulic cylinder, and a relief valve is provided in a passage for returning the oil in the hydraulic cylinder to the oil tank.

The tip of a rod-shaped handle 18 is connected to a socket 17 swingably mounted on the upper side of the plunger pump 16, and when the rear portion of the handle 18 is moved up and down, the swing of the socket 17 causes the plunger pump 16 to swing. , The oil in the oil tank is supplied to the hydraulic cylinder, and the piston 12 of the hydraulic cylinder is pushed forward. Then, as shown in FIG. 3, the lifting arm 2 rotates around the arm shaft 3, and the receiving table 5 and the receiving member 9 move upward and backward while maintaining their postures.

When the relief valve is opened in a state where the receiving table 5 and the receiving member 9 are raised, the lifting arm 2 is rotated around the arm shaft 3 by the weight of the lifting arm 2, the receiving table 5, the receiving member 9 and the link rod 7. And the receiving table 5 and the receiving member 9 are lowered downward and forward while maintaining their postures, and the oil of the hydraulic cylinder returns to the oil tank via the open relief valve and is restored to the original position shown in FIG. .

A front wheel 21 and a rear wheel 22 are attached to the outer sides of the front and rear portions of the side plates 1, respectively. As shown in FIGS. 1, 4 and 5, right and left front wheel covers 23 that cover the upper sides of the left and right front wheels 21 are attached to outer positions of the front portions of the both side plates 1, respectively. Each of the left and right front wheel covers 23 has a rear upper plate formed obliquely downward and rearward. On the rear portions of both front wheel covers 23, mirrors 31 each of which reflects a jack point on the lower surface of the vehicle body are installed diagonally downward and rearward.

As shown in FIG. 2, FIG. 6, and FIG. At both ends, mounting pieces 34 are formed by bending elastic protruding pieces.

The rear upper surface plate of the front wheel cover 23 passes through mounting holes 35 at front and rear positions, respectively. The mounting pieces 34 at both ends of the mirror 31 are inserted into the front and rear mounting holes 35, and the mirror 31 is mounted on the rear part of the front wheel cover 23 with the convex surface of the convex mirror 33 facing upward and inclined rearward and downward. By adjusting the insertion depth of the mounting pieces 34 at the front end and the rear end of the mirror 31, the angle of the rearward fall is adjusted, and the field of view in the front-back direction is adjusted back and forth.

As shown in FIGS. 2 and 4, a connecting plate 24 for integrating the two front wheel covers 23 is provided between the front portions of the two front wheel covers 23. A lighting device 41 for illuminating the vicinity of the jack point is attached.

The illuminating device 41 comprises a circuit for turning on and off the lamp 45 by turning on and off the switch 44 by using the dry battery 43 as a power source in a rectangular parallelepiped casing 42, and operating the switch 44. A piece is protruded from one end of the upper surface opening of the housing 42, and a diffusion plate for diffusing transmitted light over a wide range is provided on the other end side of the upper surface opening of the housing 42, and the irradiation surface of the lamp 45 is provided below the diffusion plate. Has been arranged.

The connecting plate 24 of both front wheel covers 23 passes through a rectangular mounting hole 46 that is long in the left-right direction. The housing 42 of the lighting device 41 is fitted and mounted in the mounting hole 46, and the lighting device 41 is provided between the front portions of both front wheel covers 23 along the left-right direction. The configuration illuminates a wide area.

The garage jack for an automobile is mainly used in a garage. When the receiving member 9 is lowered, the front part including the receiving member 9, the left and right mirrors 31 and the lighting device 41 is inserted under the body of the automobile. The receiving member 9 is raised by moving the rear portion of the handle 18 of the hydraulic drive mechanism 11 up and down to raise the receiving member 9 as shown in FIG. Hit 9 and lift the edge of the car.

When placing the garage jack for a vehicle at a predetermined position below the vehicle body of the vehicle, the operator turns on the lighting device 41, inserts the front of the garage jack under the vehicle body of the vehicle, and turns on the lighting device 41. Light near the jack point on the underside 51 of the vehicle body. Next, the worker adjusts the arrangement position of the garage jack while viewing the jack point on the lower surface 51 of the vehicle body with the left or right mirror 31 at the front of the garage jack, which is located near the rear of the garage jack. There is no need to put your hand under the hull to find the jacking point.

[Brief description of the drawings]

FIG. 1 is a side view of an automobile garage jack according to an embodiment of the present invention.

FIG. 2 is a plan view of the garage jack for the vehicle.

FIG. 3 is a side view showing a state where a receiving member of the garage jack for a vehicle is raised.

FIG. 4 is an enlarged end view of a cross section taken along line AA of FIG. 1;

FIG. 5 is an enlarged end view of a section taken along line BB of FIG. 1;

FIG. 6 is an enlarged vertical sectional side view of a front wheel cover and a mirror portion of the garage jack for the vehicle.

FIG. 7 is an enlarged vertical sectional side view of a mirror removed from a front wheel cover of the garage jack for the vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side plate 2 Lifting arm 3 Arm shaft 9 Receiving member 11 Hydraulic drive mechanism 21 Front wheel 22 Rear wheel 23 Front wheel cover 31 Mirror 33 Convex mirror 41 Lighting device 51 Underside of vehicle body of automobile

Claims (6)

[Utility model registration claims] 1. A rear end of a lifting arm and a driving mechanism are mounted between left and right side plates, and a receiving member is mounted on a front end of the lifting arm. When the lifting arm is rotated by the driving mechanism, the receiver contacts a jack point on a lower surface of a vehicle body of the automobile. A garage jack for a vehicle in which members are raised upward and rearward, wherein a mirror for reflecting a jack point on a lower surface of a vehicle body is attached to a front portion of the garage jack which is inserted under a vehicle body at an angle rearward and downward. Car garage jack. 2. The garage jack for an automobile according to claim 1, wherein a lighting device for illuminating a vicinity of a jack point on a lower surface of the automobile body is attached to a front portion inserted under the automobile body. 3. The garage jack for an automobile according to claim 1, wherein the mirror is a convex mirror whose rearward descending direction is expanded. 4. The garage jack for a motor vehicle according to claim 1, wherein the angle of the mirror can be adjusted backward. 5. The garage jack for an automobile according to claim 1, wherein the mirrors are respectively attached to outer positions of front portions of both side plates. 6. A rear end of the lifting arm and a driving mechanism are mounted between the left and right side plates, a receiving member is mounted on a front end of the lifting arm, and when the lifting arm is rotated by the driving mechanism, the receiving point contacts the jack point on the underside of the vehicle body of the automobile. In a garage jack for automobiles in which the members are raised upward and backward and front and rear wheels are attached to the front and rear outside positions of both side plates, respectively, Attach the front wheel covers, and attach the mirrors at the rear of the left and right front wheel covers, which reflect the jack points on the underside of the car body, to the rear, at an angle. A garage jack for automobiles, equipped with a lighting device that illuminates the vicinity of the point