JP3210598U - Automotive jack - Google Patents

Abstract

A novel and inventive automotive jack is provided. An automobile jack (1) includes an action base (2), a scissor type mechanism (3), a driving device (5), and a fixing device (6). Each scissor mechanism includes two intersecting and pivotally connected arms. The two arms include a pivot connection that is pivotally connected. Among these, one upper end of the arm is connected to the working table, and the upper end of the other arm is movable and conflictingly connected to the working table. In the driving device, an arm is connected to the conflicting connection portion, and the two arms are moved to open and close each other. The fixing device includes a gear and a stopper, and the gear and the stopper are respectively installed on the two arms, and the stopper is selectively fitted into one position of the gear and fixed to the tip of the stopper. Is provided. Among these, when the driving device takes two arms and closes them, the tip of the stopper moves so as to jump over the teeth along the gear. [Selection] Figure 1

Description

  The present invention relates to a jack-up device, and more particularly to an automobile jack.

  In general, an automobile jack has a function of lifting a vehicle and is used when entering and repairing the vehicle under the vehicle. However, due to the lack of supporting force and measures for protection, the base of the jack may fall rapidly and an accident may occur, so a jack having a safety device has been developed.

  However, in this type of conventional jack technology for automobiles, when the safety device is fixed to the ground, foreign objects can easily enter and affect the effectiveness of the safety device. It needs to be installed and used as a gear and a stopper of the safety device, and the cost becomes high, so there is a need for improvement.

  Accordingly, an object of the present invention is to provide a novel and inventive automotive jack that solves the above-described problems.

  In order to solve the above problems, an object of the present invention is to provide an automobile jack that has a safe and stable lifting support function and at the same time reduces the cost.

  In order to achieve the above object, an automobile jack according to the present invention includes an action table, at least one scissor mechanism, a driving device, and a fixing device. Each said scissor-type mechanism comprises two intersecting and pivotally connected arms. The two arms include a pivot connection part pivotally connected. Among these, one upper end of the arm is connected to the action table, and the upper end of the other arm is movable and conflictingly connected to the action table. In the drive device, the arm is connected to the conflict connection portion, and the two arms are moved to open and close each other. The fixing device includes a gear and a stopper, and the gear and the stopper are respectively installed on the two arms, and the stopper is selectively fitted and fixed at one position of the gear. A stopper tip is provided. Among these, when the driving device swings the two arms and closes them, the tip of the stopper moves so as to jump over the teeth along the gear, and the driving device moves the two arms. When the closing movement is stopped, the tip of the stopper is fixed in the gear so that the two arms do not open each other.

  The automobile jack of the present invention solves the conventional problems, the fixing device provides a function of stably and safely supporting the jack, and the gear is directly installed on the arm. There is no need to install a telescopic device with individual arms connected to the gear, and the cost can be reduced.

FIG. 2 is a three-dimensional view of a preferred embodiment of the present invention. It is the elements on larger scale of FIG. 1 is a side perspective view of a preferred embodiment of the present invention. FIG. 4 is a partially enlarged view of FIG. 3. 1 is a diagram showing a part of a preferred embodiment of the present invention. It is the figure which showed the mode at the time of the action | operation in the preferred Example of this invention. It is the figure which showed the mode at the time of the action | operation in the preferred Example of this invention. It is a three-dimensional view of another embodiment of the present invention.

  A preferred embodiment of the present invention will be described with reference to FIGS. The jack 1 of the present invention includes an action table 2, at least one scissor-type mechanism 3, a driving device 5, and a fixing device 6.

  Each of the scissor type mechanisms 3 includes an arm 4 which is pivotally connected by two crossing, and the two arms 4 are pivotally connected to a pivot connecting portion 44, and the upper end of one of the arms 4 is The upper end of the other arm 4 is connected to the action table 2 and is movable and conflictingly connected to the action table 2. The driving device 5 is connected to the arm 4 and positioned at the contact connection portion 43, and moves the two arms 4 correspondingly so as to open and close about the pivot axis. The fixing device 6 includes a gear 7 and a stopper 8. The gear 7 and the stopper 8 are relatively installed on the two arms 4, respectively. The stopper 8 is selectively connected to one of the gears 7. A stopper tip 81 is provided that is fixed in position. When the driving device 5 swings the two arms 4 to open and close the two arms 4, the stopper tip 81 moves along the gear 7 so as to jump over the teeth, and the driving device 5 moves the two arms. When the movement of the arm 4 is stopped, the stopper tip 81 is fixed to the gear 7 and the two arms 4 are not opened and closed with respect to each other.

  In the present embodiment, the jack 1 also includes a base 9. The upper end of the arm 4 is pivotally connected to the action table 2, and the other end is movably connected to the base 9. The other upper end of the arm 4 is movably connected to the working table 2 and the other end is pivotally connected to the base 9. The two arms 4 include a first arm 41 and a second arm 42, and the first arm 41 is movably connected to the 2. The second arm 42 is pivotally connected to the action table 2. The driving device 5 is connected to the second arm 42. Accordingly, the drive device 5 moves the first arm and the second arms 41 and 42 to open and close them in a pivotal manner, thereby controlling the lifting and lowering of the action table 2.

  The contact connection portion 43 and the gear 7 are installed on the second arm 42 and are positioned on two opposite sides of the pivot connection portion 44, so that the driving device 5 and the stopper 8 are connected to the pivot shaft. Positioned relative to both sides of the connection 44 to support the weight on average. The contact connection portion 43 is located at the upper end of the second arm 42, and the gear 7 is installed at the lower end of the second arm 42. The stopper 8 is located at the upper end of the first arm 41. The gear 7 includes two racks 71 extending in parallel, each of which disperses the weight, reduces the gravitational load received by each rack 71, and stably fixes the fixing device 6. It will not be slanted and inclined.

  The stopper front end is fitted into the side claw 82 of the gear 7, and preferably the stopper front end 81 is located between the racks 71, and the side claw 82 is provided on two opposite sides. Is installed. Each side claw 82 is inserted into the rack 71 to restrict the first arm and the second arm 41 and 42 from opening and closing each other, and when the drive device 5 is operating, The action table 2 is prevented from falling rapidly and the operator being injured or the property being placed being damaged. Preferably, the stopper tip 81 further includes a roller 841 that rotates and contacts at least one of the arms 4. The roller 841 rotates against the second arm 42 between the two racks 71. The roller 841 reduces friction between the stopper tip 81 and the arm 4 to suppress wear and at the same time extend the service life of the arm 4.

  In this embodiment, the stopper tip 81 further includes a platform 84 that is in contact with the arm 4, at least one jack-up device 83, and a conflicting shaft 85 that conflicts between the two platforms 83. . The platform 84 is connected to the second arm 42 in a conflicting manner, and the at least one roller 841 is installed. Here, the number of the at least one roller 841 is two (but not limited to), and is installed at both ends of the platform 84. The number of the at least one jack-up device 83 is two (but not limited to), and the jack-up device 83 is provided between the arm 4 and the stopper tip 81 in a state in which the distance can be changed. By supporting the stopper tip 81, the two side claws 82 are separated from the two racks 71, and the first arm and the second arms 41, 42 are supported. Open and close each other. An annular part 851 is installed outside the conflicting shaft 85. The annular part 851 is in contact with the platform 84, and when the stopper tip 81 moves along the gear 7 so as to jump over teeth, the annular part 851 has the two lateral claws. When 82 is fitted and fixed to the two racks 71, the impact force when the collision shaft 85 falls and hits the mounting base 84 is reduced.

  This will be described with reference to FIG. In another embodiment, the jack 1a includes a plurality of scissor type mechanisms. Each pivot opening / closing axis of the plurality of scissor type mechanisms is parallel, and it is possible to jack up vehicles such as automobiles and trucks.

  In another embodiment, it is possible not to install a roller at the stopper tip of the stopper, and it may be slid directly on the arm. The gear of the fixing device can also be a single rack or other number of racks. For example, if the number of racks is three, the weight burden to be received is more preferably distributed and at the same time Reduce the wear and extend the service life of each rack. The side claw and the contact shaft of the fixing device can be integrally formed to penetrate the stopper tip of the stopper, or can be joined to the inner and outer walls of the stopper tip, respectively. One end of the driving device can be connected to the base of the jack or another arm facing the jack. The driving device and the fixing device of the jack can also be installed on the same side of the pivot connection of the two opposing arms. The jack can also have a mother-child structure, and a jack with a smaller volume can be installed on the work table of the jack to meet special work needs.

  Thus, in the automobile jack of the present invention, the fixing device provides a function of stably and safely supporting the jack, and the gear is directly installed on the arm, so that the two arms are mounted. There is no need to install a connected telescopic device on the gear, and the cost can be reduced.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and there are design changes and the like without departing from the scope of the present invention. However, it is included in the present invention.

DESCRIPTION OF SYMBOLS 1 Jack for motor vehicles 1a Jack for motor vehicles 2 Action stand 3 Scissor type mechanism 4 Arm 41 First arm 42 Second arm 43 Contact connection part 44 Axis connection part 5 Drive device 6 Fixing device 7 Gear 71 Rack 8 Stopper 81 Stopper tip part 82 Side claw 83 Jack-up device 84 Mounting base 841 Roller 85 Contact shaft 851 Annular part 9 Base

Claims (10)

An automobile jack,
An action table,
Each having two crossed and pivotally connected arms, the arms being connected to a pivot connection, one of the arms having one upper end connected to the working platform and the other arm At least one scissor-type mechanism whose upper end is movably connected to the working table in a movable manner;
A driving device in which the arm is connected to the conflicting connection portion, and the two arms are banded to open and close each other by a pivot;
A fixing device comprising a gear and a stopper, wherein the gear and the stopper are relatively installed on the two arms, respectively, and the stopper is selectively fitted and fixed at one position of the gear. With equipment,
Among these, when the driving device swings the two arms and closes each other, the stopper tip moves so as to jump over the teeth along the gear, and the driving device moves the two arms. The automobile jack is characterized in that when the movement of closing each other is stopped, the two arms are not opened / closed by fixing the tip of the stopper into the gear.   The two arms include a first arm and a second arm, the first arm is movable and conflictingly connected to the working table, and the second arm is pivotally connected to the working table, The automobile jack according to claim 1, wherein the driving device is connected to the first arm.   3. The automobile jack according to claim 2, wherein the conflicting connection portion and the gear are installed on the second arm and are respectively positioned on two opposite sides of the pivot connection portion.   The conflict connection portion is located at one upper end of the second arm, the gear is installed at one lower end of the second arm, and the stopper is pivotally connected to one upper end of the first arm. The automobile jack according to claim 3.   2. The automobile jack according to claim 1, wherein the stopper front end includes a side claw that is fitted into and fixed to at least one gear.   The automobile jack according to claim 1, wherein the stopper front end portion includes a roller that rotationally contacts at least one of the arms.   And a base, wherein the upper end of the arm is pivotally connected to the working table, and the other end is movable and conflictingly connected to the base, and the upper end of the other arm is movable and movable. The automobile jack according to claim 1, wherein the other end is pivotally connected to the base.   The stopper tip is supported between the arm and the stopper tip in a state in which at least one jack-up device is further installed and the jack up device can change the distance, thereby supporting the stopper tip. The automobile jack according to claim 1, wherein the jack is separated from the gear.   The gear includes two racks that extend in parallel and the stopper tip is located between the two racks, and the opposite two sides are respectively provided with side claws. Each of the side pawls is fitted and fixed in the rack, and the stopper tip includes a roller that rotates against the arm between at least one of the two racks, and the stopper tip Further, a platform that is in contact with the arm is installed, at least one roller is installed on the platform, and two jack-up devices are installed at the stopper tip. The jack-up device supports the stopper tip between the arm and the stopper tip in a state where the distance can be changed. The pawl is detached from the two racks, and the stopper tip is further provided with a contact shaft located between the two jack-up devices, and an annular part is installed outside the contact shaft. The annular part is contacted to the mounting base, the automobile jack further includes a base, the upper end of the arm is pivotally connected to the working base, and the other end is movable. The upper end of the other arm is movable and connected to the working platform, and the other end is pivotally connected to the base, and the driving device is connected to the base. The jack for automobiles according to claim 4 characterized by things.   10. The automobile jack according to claim 1, wherein the automobile jack includes a plurality of scissors-type mechanisms, and each pivot opening / closing axis of the scissors-type mechanism is parallel. .

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