JP2934944B2 - Mobile workbench - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable workbench.

[0002]

2. Description of the Related Art The applicant of the present invention has already filed Japanese Patent Application No. Hei.
No. 4497 is filed as an application, but this is a work table having a large-scale structure, which is moved by a self-propelled system, which is advantageous in a building having a large floor without partitions. However, it could not be used in narrow spaces such as houses and hospitals with many partitions and narrow floors, which was a drawback.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mobile workbench which solves the problem in such a place.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a support pipe is provided upright on the left and right sides of a rear portion of a base provided with moving wheels and a fixture.
Guide rolls that are housed in this support tube and slide up and down are provided on the left and right sides of the rear part of the work table, and the chains that are rotated by the motor installed on the base are attached to the left and right ends of the lower support shaft and the upper support shaft. Each of the chains is suspended on a sprocket provided, one end of the chain is fixed to the upper end of the guide roll, and the other end is fixed to the lower end of the guide roll. It consists of

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Now, when starting to work on a worktable, an operator first fixes a base and then presses a forward rotation switch of a motor on the worktable. Then
The rotation of the motor pulley and the belt rotates the lower support shaft via the pulley to rotate the sprockets at the left and right ends, so that the chain is pulled downward.

Then, the work table to which one end of the chain is fixed is lifted and gradually moves upward. In FIG. 2, the state of reaching the highest position is indicated by a chain line, but the work table stops at a desired height in accordance with the work situation.

After the work is completed, if the reverse rotation switch of the motor is pressed, the lower support shaft rotates in the opposite direction to rotate the chain upward and one end of the chain descends.
The workbench is gradually lowered, and returns to the position indicated by the solid line in FIG.

When the operator wants to move the work table, he or she moves the work table to a desired place via wheels while holding the handle down.

After the movement, in order to fix the work table at the place, the entire base is slightly lifted by fixing jacks provided at the four corners of the base, and then fixed. At this time, the wheels also float.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a base having a base tube 2, 2,... Around its periphery. Arms 3, 3 provided on a base tube 2 on the rear side of the base have wheels 4, 4 attached thereto. Pivot.

Reference numerals 5 and 5 denote adjusting tubes which are inserted into and removed from respective ends of the base tubes 2 and 2 on both front and rear sides of the base 1, and fixed to the respective adjusting tubes so as to be vertically adjustable. Jack 6,
6 ... is provided.

Numerals 7 and 7 denote support pipes provided with openings 8 in the vertical direction at the inside of the base 1 at the right and left ends of the rear side thereof. The guide rolls 16, 16,... Provided on the outer side of the first and second fittings 15, 15 are fitted and slid up and down.

Reference numeral 9 denotes a handle provided at an appropriate position on the rear side of the support tube 7. This handle serves as a handle when the entire machine is moved backward through the wheels 4 and 4 in a state where the entire machine is turned backward. In this embodiment, the entire machine is moved backward while moving. However, if four wheels are provided, the entire machine is moved in a horizontal state.

Reference numeral 10 denotes a work table having a tread plate 11, which is provided with a side plate 12 around a lower end and a handrail frame 13 and a frame member 14 around an upper part.

15 and 15 are front side plates 12 of the work table 10.
And guide members provided at the left and right ends of the auxiliary plate 12 '. Guide rolls 16, 16,...
Is provided. Guide members 15, 15 and guide roll 1
The portions 6, 16,... Are accommodated in the support pipes 7, 7, and the support pipes slide up and down like a rail.

Reference numerals 17 and 17 denote sprockets installed at the left and right ends of an upper support shaft 18 provided between the upper ends of the inner openings 8 and 8 of the support pipes 7 and 7, respectively, and a lower sprocket 19 corresponding to the sprocket. , 19 are installed at the left and right ends of a lower support shaft 20 erected between the lower ends of the inner openings of the support tubes 7.

Reference numerals 21 and 21 denote chains suspended between the upper and lower sprockets 17 and 19, and one end of the chain is fixed to the upper end of the guide members 15 and 15.
The other end is fixed to the lower end of the guide member 15,23.

The transmission mechanism for the chain and the sprocket may be configured in place of other synergistic members.

Reference numeral 24 denotes a motor installed on the base 1.
A belt 27 is suspended between the motor pulley 25 and a pulley 26 provided on the lower support shaft 20.

Reference numerals 28, 28 denote reinforcing plates provided on the left and right sides of the worktable 10 near the front side.

An operation panel 29 for rotating the motor is provided at an appropriate position on the work table 10.

[0022]

According to the work table of the present invention, the work table becomes a relatively small work table suitable for performing various works on a ceiling or a wall portion in a place having a large number of partitions and a narrow door width. It is always safe, smooth and quick, can be easily moved, has little accumulation of fatigue on workers, and its overall mechanism is relatively simple, so it is inexpensive. Can be provided.

[Brief description of the drawings]

FIG. 1 is an overall perspective view.

FIG. 2 is an overall side view.

FIG. 3 is a perspective view showing the relationship between main parts.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 4,4 Wheel 5,5 Adjustment pipe 6,6 Fixed jack 7,7 Prop tube 9 Handle 10 Work table 15,15 Guide member 16,16 Guide roll 17,17 Sprocket 18 Upper support shaft 19,19 Sprocket 20 Lower support shaft 21, 21 Chain 22, 22 Fixed part 23, 23 Fixed part 24 Motor 27 Belt

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04G 1/20 E04G 1/24

Claims (1)

(57) [Claims] 1. A support pipe is erected on the left and right sides of a rear side of a base provided with a moving wheel and a fixture, and a guide roll part which is housed in the support pipe and slides up and down is provided at the rear of the worktable. Chains provided on the left and right sides and rotated by a motor installed on a base are suspended on sprockets provided on both right and left ends of a lower support shaft and an upper support shaft, respectively, and one end of the chain is an upper end of the guide roll portion. A movable worktable, the other end of which is fixed to the lower end of the guide roll, and which can be raised and lowered by forward and reverse rotation operations of a motor.