JP2838780B2 - 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 mobile 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 cannot be used for work in a place where the door width is narrow and the floor is narrow, such as a house or a hospital with many partitions, which is a drawback.

Therefore, conventionally, in a place where the door width of a building is relatively small, a stepladder or a ladder is used to mount a ceiling panel, install an air conditioner, wire for telecommunications, attach a wall-covered ground, and attach a sash. Since work such as installation had to be performed, workers often fell accidentally, which was a problem for workers.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mobile work table which can be folded so as to solve the problem in such a place. is there.

[0005]

According to the present invention, a lower frame and an upper frame are provided between a front frame and a rear frame, which are composed of a base plate at the front and rear portions and columns on the left and right sides thereof. A bracing material is provided between the side portions of the front frame and the rear frame, and the lower tension rod is pivotally connected to the middle part, and the upper tension rod is pivotally connected at one end and can be opened and closed at the other end. The lower ends of the bracing members are pivotally connected to the lower ends of the columns, and the upper ends thereof can slide on the upper side surfaces of the columns. A small wheel is provided, and a work table plate is installed at an appropriate position between the front and rear frames so as to be detachable, so that the entire body can be folded and reduced.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Now, when the user wants to move this machine to a room or place with a narrow entrance width and perform work, first remove the front housing part from the machine shown in FIG. After removing the base plate, the body is folded from the state shown in FIG. 1 to the state shown in FIG.

When the body is moved to a predetermined place in the folded state, the body is opened again, and the case is attached. After fixing the places requiring tightening, the case is attached.
Attach the work base plate and make it the state shown in Fig. 1,
A person can work on the work board.

Further, the movement and the direction change of the airframe may be performed by operating a foot pedal or a handle.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a front frame comprising front supports 2, 2 provided on the left and right sides of the front side of the body and a front base plate 5 on which the front supports are installed.
At the right and left sides of the rear side with appropriate spacing
And a rear base plate 6 on which the post is installed.

Each of the left and right side portions 5 ', 5' of the front base plate 5
Is extended outward from the position of the front supports 2, 2, and small wheels 7, 7 are provided at the outer end. Also, the rear base plate 6
The left and right side portions 6 ', 6' extend outward from the positions of the rear supports 4, 4, and small wheels 8, 8 are provided at the outer ends.

9, 9, 9, 9 are the front and rear frames 1,
3 are guide rails provided on the outer surfaces of the front and rear support columns 2, 2, 4, and 4;
0, 10, 10 are inserted through shafts 11, 11, 11, 11, and upper ends of brace members 12, 12, which will be described later, are pivotally attached to the shafts. It comes to slide.

Reference numerals 12 and 12 denote lower ends of the front and rear frames 1 and 3, which are pivotally attached to outer sides of lower ends of the front and rear columns 2, 4, 2 and 4, respectively.
The upper end of this brace is made of the shafts 11,11,1 of the rollers 10,10,10,10.
It pivots to 1 and 11, respectively.

14, 14 are the front and rear struts 2, 4, 2,
A central pivot portion of the brace members 12, 12 erected between the four, and the rear frame 3 is folded close to the front frame 1 around the pivot portion 14.

Reference numerals 15, 15, 15 and 15 respectively denote base ends inside the lower ends of the front and rear struts 2, 4, 2, and 4, respectively.
The inner end of each of these sub-bars is screwed by a support rod 17 suspended on both left and right sides.
At 7 'and 17', they are pivotally connected.

18, 18 are the front and rear struts 2, 4, 2,
4, and one end of the upper rod is pivotally connected to the protruding plates 19, 19 of the rear supports 4, 4.
Then, the other ends of the upper tension rods are the protruding plates 21, 21 of the front supports 2, 2.
The stop bars 22, 22 which are detachably provided are inserted and fixed. If the retaining rods 22 are removed, the upper tension rods 18
Is lowered about the pivots 20, 20 at one end thereof.

Numerals 23, 23 denote middle protruding plates provided in the same direction as the upper end portions of the intermediate portions of the rear supports 4, 4, and the middle protruding plates include other members, such as the upper tension rods 18, 18 when they are lowered. The ends are located at which the stop bars 22, 22 are inserted and fixed.

Reference numerals 24, 24 denote frame rods extending between the left and right front columns 2, 2 and between the rear columns 4, 4, and their positions and numbers are arbitrary.

Reference numeral 25 denotes an entrance / exit chain band suspended between the upper ends of the left and right rear supports 4, 4, and one end of the chain band is detachable.

Reference numeral 26 designates a hooking portion 2 between frame rods 24, 24 provided at the same positions at appropriate positions between the upper and lower columns 2, 2, 4, and 4.
A work board detachably suspended via 7, 27, 27, 27, and a person works on a ceiling surface or a wall surface on the work board.

Reference numeral 28 denotes a housing which is detachably installed at a front portion of the front frame 1 by an arbitrary means. A transmission operating device is provided inside the housing. An operation handle 29 is provided at an upper end of the device, and moving wheels 32 are provided via a support frame member 31 at a lower end of a drive shaft 30 directly connected to the operation handle.
Is provided.

Reference numeral 33 denotes a foot pedal which is installed at an appropriate position inside the housing 28 of the transmission operating device.
By operating the foot pedal 33 on the front side of the vehicle, the body is advanced, and the traveling direction can be freely changed by operating the operation handle 29. Although the mechanism of the transmission operating device inside the housing 28 is omitted, the foot pedal 33 is interlocked.

Reference numerals 34, 34 denote stationary legs which are taken out so as to be in contact with the ground when the body is fixed in place.

[0023]

As described above, the present invention is an airframe having such a configuration, and therefore, when working on a wall or ceiling in a room or place where the door width of a building is narrow, the entire airframe is folded sufficiently to be narrow. It is possible to enter the inside from the entrance, and after the movement, the aircraft can be securely held in the fully opened and fixed state to perform desired work.

It is another object of the present invention to provide a worktable that can completely prevent a fall accident that occurs when a stepladder or a ladder is used as in the related art, and can always perform safe work.

[Brief description of the drawings]

FIG. 1 is an overall perspective view at the time of work.

FIG. 2 is a slightly modified side view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a plan sectional view of a main part.

FIG. 5 is a side view of the whole when folded.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 front frame 2, 2 front support 3 rear frame 4, 4 rear support 5 front base plate 6 rear base plate 7, 7 small wheel 8, 8 small wheel 9, 9 guide rail 10, 10 roller 11, 11 axis 12 , 12 Brace material 13,13 Pivot 14,14 Central pivot 15,15 Lower tension rod 16,16 Pivot 18,18 Upper tension 20,20 Pivot 22,22 Stop rod 24,24 Frame rod 26 work table board 27,27 latching part 28 housing 29 operating handle 32 moving wheel 33 foot pedal

Continuation of the front page (56) References JP-A-7-1022753 (JP, A) JP-A-7-180344 (JP, A) JP-A 1-122138 (JP, U) JP-A 50-41301 (JP) , U) Actual opening 60-60645 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04G 1/24 E04G 1/22 E04G 1/34

Claims (2)

(57) [Claims] 1. A front and rear frame comprising front and rear base plates and respective left and right supports thereof is constructed by erection of a lower tension rod and an upper tension rod. A bracing member is provided between the side portions, the lower tension bar is pivotally connected at the middle portion thereof, and the upper tension bar is pivotally connected at one end and can be opened and closed at the other end. The lower end is pivotally attached to the lower end of each column, and each upper end is slidable on the upper side of each column, and small wheels are provided at each end of the base plate of both front and rear frames. A mobile workbench machine characterized in that a workbench plate is detachably mounted between two frames so that the whole body can be folded and reduced. 2. A housing provided with a transmission operating device is provided at a front portion of a front frame so as to be detachable, a foot pedal interlocked with the transmission operating device is operated on a work table plate, and the housing is provided. The mobile work machine according to claim 1, wherein a drive shaft of a handle provided above is connected to the movable wheel, and the body is advanced and moved by operating the handle.