JPS6338237Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an autolift for raising and lowering vehicles, etc., and its purpose is to make the lifting/lowering feeding mechanism waterproof and dustproof, thereby preserving the mechanism.

In general, in autolifts in which a carriage that is guided so as to be vertically slidable on a column is raised and lowered by the rotation of a feed screw shaft, the raising and lowering mechanism is not fully waterproof and dustproof, and it is difficult to avoid dust or car washing. There was a problem in which cleaning water containing mud entered during the process, causing rust and damage to the feed screw shaft, feed nut, bearings, etc.

In view of these conventional problems, the present invention provides an autolift that has a simple structure and is waterproof and dustproof without impairing the functions of the autolift at all.

Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, numerals 1 and 2 are pillars installed on the floor at a predetermined interval. As shown in FIGS. 2 and 3, the support columns 1 and 2 are formed of a pair of U-shaped guide rails 18, and are fixed and erected on a base plate 17. Support plates 3 and 4 are fixed to the upper ends of the support columns 1 and 2, and a cross beam 5 is fixed between the support plates 3 and 4 to reinforce the upright columns 1 and 2.

Reference numerals 10 and 11 denote feed screw shafts, which are disposed between the pair of guide rails 18, and whose lower ends are connected to a bracket 2 fixed on the base plate 17 as shown in FIG.
It is rotatably supported by a block 22 on the top. Further, sprockets 14 and 15 are attached to the upper end, and a synchronizing chain 16 is stretched between the sprockets 14 and 15 through the inside of the cross beam 5.

Reference numerals 12 and 13 denote rotary drive motors, which drive the feed screw shafts 10 and 11 in left and right rotation via a belt transmission device or the like.

Carriages 6 and 7 are moved up and down by the feed screw shafts 10 and 11, and vehicle supports 8 and 9 for supporting the lower part of the vehicle A to be lifted are attached to the inside of each carriage. As shown in FIG. 2, this carriage 6 is formed into a box shape surrounding the support column 1, and is connected to the feed screw shafts 10, 11 via a feed nut 24 fixed to a receiving plate 23 protruding from the inner surface of the box.
guide rollers 19 and 20 are supported on their inner surfaces so that their rotational directions are orthogonal to each other;
These guide rollers 19 and 20 are the guide rail 18
are guided by.

3, a connecting cover 26 is provided on one side between a pair of guide rails 18 constituting the support column 1 to cover the inside of the feed screw shafts 10, 11. This connecting cover 26 may be a separate member attached in the longitudinal direction of the support column 1 as in the illustrated example, or may be integrally formed with the guide rails 18, although this is not shown.

Further, between the base plate 17 and the support plates 3 and 4, a fixed support column cover 25 having a square cross section is provided along the outer surface of the carriage 6 on three sides outside the support column 1, covering the outside of the feed screw shafts 10 and 11. Pillar 1 surrounds
It is installed along the entire length of the

Furthermore, as shown in FIG. 4, waterproof plates 27 to which waterproof rubber 28 is fixed, which slides on the guide rails 18, are installed on both the upper and lower end surfaces of the carriage 6 to further securely protect the bearings of the guide rollers 19 and 20. do.

Further, as shown in FIG. 5, the direction of the pair of guide rails 18 can be reversed from that shown in FIGS. 2 and 3.

Since the present invention has the above-described structure, by starting the rotary drive motors 12 and 13, the feed screw shafts 10 and 11 are synchronously rotated by the synchronization chain 16, and the carriages 6 and 7 are mounted on the vehicle cradle. 8 and 9 are moved up and down synchronously, so the vehicle A is moved up and down while the lower part of the vehicle body is supported.

In this way, even if the carriages 6 and 7 are moved up and down, the feed screw shafts 10 and 11 and the guide roller 1
The inside of the column that houses 9 and 20 is connected to the connecting cover 2.
6. The pillar 1 is completely surrounded by the box-shaped carriages 6 and 7 and the outer pillar cover 25, so that water does not penetrate inside even when washing the car, and it also has a dustproof effect. Further, by attaching a waterproof plate 27 as illustrated in FIG. 4, further waterproof and dustproof effects can be achieved.

As described above, according to the present invention, the inside of the feed screw shaft installed between the pair of guide rails that constitute the support is closed by the connecting cover, and the outside of the feed screw shaft is closed along the outer surface of the carriage. Since the structure is such that the column is covered by a fixed column cover with a cross-sectional shape installed so as to surround the outer three sides of the column, the feed screw shaft is exposed to the outside through the bent gap between the column cover and the guide rail. This makes it possible to improve waterproof and dustproof reliability while maintaining a simple configuration.
By using a fixed cover, durability can be improved and the smooth operation of the autolift can be maintained for a long period of time.

[Brief explanation of the drawing]

Figure 1 is the front view of the autolift, Figure 2 is the front view of the autolift.
FIG. 3 is an enlarged sectional view along the line in FIG. 2, FIG. 4 is an enlarged sectional view along the line in FIG. 2, and FIG. 5 is an enlarged sectional view along the line in FIG. 2, showing another embodiment. 1, 2...Strut, 6,7...Carriage, 1
0,11...Feed screw shaft, 12,13...Rotary drive motor, 18...Guide rail, 19,20...
...Guide roller, 25... Post cover, 26...
Connection cover, 27...waterproof plate.

Claims (1)

[Scope of utility model registration request] In an autolift in which a carriage guided so as to be vertically movable relative to a support is moved up and down by rotational drive of a feed screw shaft, the carriage is rotationally driven by a drive device between a pair of guide rails that constitute the support. A feed screw shaft is arranged, a connecting cover covering the inside of the feed screw shaft is provided between the pair of guide rails, a box-shaped carriage surrounding the support is guided to the guide rail so as to be movable up and down, and the inner surface of the carriage is is provided with a feed nut screwed onto the feed screw shaft, and a support cover having a square cross section that covers the outside of the feed screw shaft is provided along the outside of the carriage so as to surround three outside sides of the support support over the entire length of the support. An autolift that is characterized by having been installed over a long period of time.