JPH0144464Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a sliding door for a transportation box, and particularly relates to an opening/closing mechanism for the sliding door.

(Prior Art) Here, a conventional sliding door opening/closing mechanism will be described with reference to FIG.

The sliding door 10 is fixed to the locking bars 12, 13 by a presser metal fitting 11 in a state that allows rotation of the locking bars 12, 13, and is prevented from shifting downward by a hanging metal fitting 14.
Furthermore, arms 121, 122, 131, 132 extend in parallel to the upper and lower parts of the locking bars 12, 13 in the vertical and horizontal directions. It is arranged with

A sliding door with such a structure has a handle 123,
133 from the hooks 124, 134 and rotate it toward you to release the handle 12.
3,133 on the hooks 124,134.

In other words, the conventional sliding door has the disadvantage that both hands must be used to open and close the door.

(Purpose of the invention) Therefore, the purpose of the invention is to provide a sliding door for a transportation box that can be opened and closed with one hand.

(Structure of the device) The device is connected to a moving member including a guide rail provided at the top and bottom of the side wall surface of a transportation box and a rolling means that rolls within the guide rail provided at the top. a plurality of arms, a plurality of arms connected to a rolling member that rolls within a guide rail provided at the lower part, and a plurality of arms connected to the plurality of upper and lower arms that are parallel to each other vertically and horizontally, respectively. a locking bar; a sliding door body supported by the plurality of locking bars while being prevented from shifting downward;
A sliding door for a transportation box body, characterized in that it is comprised of small gears each fitted on the plurality of locking bars, and a toothed rod that simultaneously rotates the small gears.

(Example) The present invention will be described with reference to drawings showing examples.

FIG. 1 is a front view showing the sliding door of the present invention, and FIG. 2 is an enlarged sectional view taken along line A--A in FIG.

The sliding door main body 1 is fixed to the locking bars 3, 4 by a presser metal fitting 2 in a state that allows rotation of the locking bars 3, 4, and is prevented from shifting downward by a hanging metal fitting 5. In addition, arms 31 and 3 are provided at the upper and lower parts of the locking bars 3 and 4.
2, 41, and 42 extend in parallel vertically and horizontally, respectively, and the upper arms 31, 41 are connected to the movable member 7 containing rollers (not shown) by connecting pins 311, 411. It is connected with Further, rollers (not shown) are arranged at the tips of the lower arms 32 and 42.

Furthermore, small gears 92 and 93 are fitted to the locking bars 3 and 4, respectively.
A toothed rod 91 having the same groove width as the groove width of the pinion 93 is mounted so that the power of the pinion 92 can be transmitted to the pinion 93.

Here, the opening/closing operation of the sliding door will be explained.

When the handle 33 is removed from the hook 34 and pulled forward, the locking bar 3 is connected to the upper and lower arms 31 and 32, so the connecting pin 311 and the arm 3 are removed.
It rotates around the rollers placed at 2. At the same time, the small gear 9 fitted on the locking bar 3
2 is rotated to the left, the toothed rod 91 moves to the left, and as the toothed rod 91 moves, the locking bar 4
The small gear 93 fitted in is rotated to the left. At this time, the locking bar 4 rotates around the connecting pin 411 and the rollers disposed on the arm 42 in the same manner as the locking bar 3. That is, by simply pulling the handle 33 forward using the power transmission mechanism 9, the left and right locking bars 3, 4 can be simultaneously raised upright, and the sliding door body 1 can be opened. Furthermore, by moving the handle 33 to the right, the slide door main body 1 is moved exactly along the box body by the upper and lower guide rails 8, 6.

(Effects of the Invention) As described above, according to the configuration of the present invention, the door can be opened and closed with one hand when loading and unloading cargo, so that work efficiency can be greatly improved.

In addition, it can be attached to many types of sliding doors by simply adjusting the length of the toothed rod, so it has a wide range of applications.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention,
FIG. 2 is an enlarged sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a front view showing a conventional example. 1... Sliding door body, 2... Presser fitting, 3,
4... Locking bar, 5... Hanging metal fittings, 6, 8
... Guide rail, 7 ... Moving member, 9 ... Power transmission mechanism, 31, 41 ... Upper arm, 32, 4
2... lower arm, 33... handle, 91... tooth rod, 92, 93... small gear.

Claims (1)

[Scope of utility model registration request] A guide rail provided at the top and bottom of the side wall surface of the transport box, a plurality of arms connected to a moving member including a rolling means that rolls within the guide rail provided at the top, and a plurality of arms connected to the moving member at the bottom. a plurality of arms connected to a rolling member that rolls within a provided guide rail; a plurality of locking bars connected to the upper and lower arms that are parallel to each other in the vertical and horizontal directions;
It is characterized by comprising a sliding door body supported by the plurality of locking bars while being prevented from shifting downwards, small gears fitted to each of the plurality of locking bars, and a toothed rod for simultaneously rotating the small gears. A sliding door on a transport box.