JPH019836Y2 - - Google Patents

Description

[Detailed description of the invention] This invention transports multiple tatami mats to the work place when sewing tatami mats, etc., and as the tatami sewing work progresses, each tatami mat is raised to the workbench position one by one. This relates to a multi-stage lift car for tatami work that can be stored in an upper position when finished.

In the production of tatami mats, a large number of tatami mats are often stacked and lifted manually to a working position for a sewing machine or the like. However, tatami mats are heavy and require hard labor, such as lifting and changing directions. In addition, it is necessary to prepare two areas: a space to stand or stack unworked tatami mats, and a space to place the tatami mats after work, which is a difficult point for cottage industry-scale tatami manufacturers. It was.

Therefore, the present inventor developed a multi-stage lift car for tatami work with the following structure. Its structural feature is that multiple lift frames are arranged vertically movably on two parallel columns that stand up on the trolley, and each lift frame has a pair of left and right forks that can rotate horizontally. A locking member is provided, and as the pawl of the chain drive disposed parallel to the support column rises, it locks with the locking member of the lift frame to raise the tatami mats on each fork to the working position. be.

This will be explained in detail below with reference to the drawings.

FIG. 1 is a front view of a multi-stage lift car for tatami work according to the present invention, and FIG. 2 is a plan view thereof. Furthermore, FIG. 3 is a left side view of the same lift car. FIG. 4 is a side view showing the locked state of the locking member provided on the lift frame and the claw provided on the chain drive. As seen in these figures, the multi-stage lift car for tatami work of the present invention has casters 10 at the bottom.
A plurality of (six in the figure) lift frames 3 are vertically movably disposed on two parallel supports 2, 2 standing on a truck 1 equipped with a lift frame. The lift frame 3 can be moved up and down by two rollers 4 provided at each end rolling within a channel 5 of the support column 2. Such a lift frame 3 is provided with a pair of left and right forks 6 that are rotatable in the horizontal direction. A metal ball 7 is embedded in the tip of the fork 6 for the purpose of improving the sliding of the tatami mat.

Such a multi-stage lift car for tatami work is capable of carrying a plurality of tatami mats 8 on each fork 6 to the position of the tatami sewing machine 9, as shown by the two-dot chain line in FIG. The fork 6 is raised to the working position in sequence by the locking member 18 provided on the lift frame 3 and the pawl 19 provided on the chain drive 11 as shown in FIG. It has a structure that locks it to the frame. In this example, a collar is used as the locking member, but a hook-shaped protruding piece may also be used. The rotation of the motor 12 disposed on the truck is transmitted to the transmission 13 via the chain 14,
Furthermore, by rotating the shaft 16 at the bottom of the truck by the chain 15, the chain drive 11 between the shaft 17 disposed at the top of the lift frame 3 and the lower shaft 16 rotates, making it possible to lock the pawl 19. be. At this time, when the upper lift frame is locked, the lower claw 19 is not yet locked, as shown in FIG. The lower lift frame is locked when the upper lift frame is slightly raised, making the work easier. To transfer tatami from this device to the tatami sewing machine,
Although this can be done manually, it is also possible to have a structure in which a discharge cylinder or the like is provided to automatically feed the material onto the sewing machine. To lower all the tatami mats after finishing the work, the chain drive 11 is rotated in the opposite direction. At this time, the claws 19 are removed in order from the lower row.

Since the present invention has the structure as detailed above,
When not in use, as shown by the two-dot chain line in Figure 2,
It can be folded inward and used like a regular trolley. Since a large number of tatami mats can be transported to the work site at once, and the tatami mats can be raised to the work position one by one, the tatami sewing machine has become a light task that even women and men can perform. The tatami mats that have been worked on are moved up one after another to the top of the lift car, so they do not require any storage space, making them particularly useful in narrow workplaces.
Then, the tatami products can be made and transported as is to the transport truck.

[Brief explanation of the drawing]

FIG. 1 is a front view of a multi-stage lift car for tatami work according to the present invention, and FIG. 2 is a plan view thereof. Furthermore, FIG. 3 is a left side view of the same lift car. FIG. 4 is a side view showing the locked state of the locking member provided on the lift frame and the claw provided on the chain drive. 1... Trolley, 2... Strut, 3... Lift frame, 4... Roller, 5... Channel, 6... Fork, 11... Chain drive, 12... Motor, 13... Transmission, 14, 15... Chain, 16, 17... Shaft, 18... Locking member, 19... Claw.

Claims (1)

[Scope of utility model registration request] A plurality of lift frames are arranged vertically movably on two parallel columns that stand up on a trolley, and each lift frame is provided with a pair of left and right forks and a locking member that can be rotated in the horizontal direction. A multi-stage lift car for tatami work, characterized in that as claws of a chain drive disposed parallel to the forks are raised, they are engaged with locking members of the lift frame to raise the tatami mats on each fork to a working position.