JPH048044B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic chair laying machine that can lay a large number of chairs in large conference halls, gymnasiums, etc., and can efficiently store the laid chairs.

[Conventional technology and its problems]

When a gymnasium, exhibition hall, or large conference hall is used as a place for gatherings or ceremonies, a large number of chairs must be arranged. We are doing the hard work of doing so.

In order to make this kind of work even a little easier, a stackable chair 1 as shown in Figs. 6 and 7 is used as the chair, and a hand-operated rack with casters 2a at the bottom as shown in Fig. 8 is used. Chairs 1 and 2 are also stacked one on top of the other. Although a large number of chairs 1 can be easily transported at one time by using such a manual moving rack 2, loading and unloading the chairs 1 onto the rack 2 still requires manpower and is labor-intensive. be.

Incidentally, staircase-type movable seats are sometimes installed in large auditoriums, etc., but this requires a fairly large device, and the rear seats are quite high, making it difficult to approach and being heavy, causing damage to the floor. Problems also arise.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
All the installation and storage of chairs can be done automatically, and the device itself is compact and can be operated by one person.
To provide an automatic chair laying machine that can be installed even in a part of a room without taking up space.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a protruding horizontal guide frame to be inserted between the legs of a chair, and extends two guide rails so as to rise from near the base of the guide frame. A lift chain with a large number of hooks protruding outward at a predetermined pitch is installed above and parallel to each guide rail, and the front side of the lift chain is hooked to the horizontal tie material of the chair leg. The gist of this is that it consists of a cart equipped with a lifting lever.

[Effect]

According to the present invention, when the guide frame of the trolley is inserted between the legs of the chair on which it is placed from the front side and the rake lever is rotated, the lever engages with the horizontal tie material of the leg of the chair and lifts the chair. Attract. The lower ends of the legs of the chair drawn in this way ride on the guide rail, and the chair as a whole leans forward slightly while the horizontal tie members engage the hooks of the lift chain. As the lift chain moves, the chairs slide up on the guide rails and are stored on the trolley, but each hook on the chain can store one chair, and the chairs are stacked on top of each other. It is loaded and stored. In this case, since the chair stored in the front is slightly tilted forward, it is easy to insert the chair in the back.

On the other hand, by unloading the chairs one by one from the trolley by reversing the procedure described above, automatic laying can be carried out at a predetermined position.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is a side view showing one embodiment of the automatic chair laying machine of the present invention, and Fig. 2 is a plan view of the same. show.

A guide frame 6 is provided horizontally so as to project rearward from one end of the chassis 4 of the truck 3. This guide frame 6 has a width to be inserted between the legs of a stackable chair 1, which will be described later, and has a narrow end so that it can be easily inserted. Moreover, regarding the method of attachment to the trolley 3, it may be configured such that it can be flipped up so that it can be stored when not needed.

On the truck 3, two parallel guide rails 7 made of angle material are provided, one end of which is located near the base of the guide frame 6, and which ascends from there toward the other end.The spacing between the guide rails 7 is The distance was made to match the mutual spacing between the legs 1a of the chair 1 shown in FIGS. 6 and 7.

Further, a lift chain 8 is provided above each guide rail 7 in parallel with the endless belt formed by the link chain and having a protruding hook 9 whose tip is bent into a hook shape at each pitch of each constituent link.
In this case, the parallel spacing between the guide rail 7 and the lift chain 8 was made equal to the height from the lower end of the leg 1a of the chair 1 to the horizontal tie member 1b stretched over the front side of the leg 1a.

In the figure, reference numeral 10 denotes a motor provided on the chassis 4, which is connected to the driving wheels 5a via a brake and a clutch 11.
It was also connected to the drive shaft 8a of the lift chain 8 via a reduction gear 12 and a transmission mechanism 13 such as a chain.

As mentioned above, the guide rail 7 and the lift chain 8 are lined up so that the end of the guide rail 7 protrudes slightly, and the shaft 15 rotated by the motor 14 is located between these and the base of the guide frame 6. A scraping bar 16 attached to is disposed. This bar 1
6 engages with the horizontal tie member 1b of the chair 1, rotates counterclockwise in FIG. 1, and connects with the end of the lift chain 8.

In addition, lift chain 8 and lifting lever 16
Although the operation is performed by a control section (not shown), a chair detection sensor 19 for detecting the chair 1 may be attached to the guide frame 6.

Further, side plates 17, 17' and a deck 18 are provided on the bogie 3, of which the deck 18 and one of the side plates 17' are pivotally attached to the remaining side plate 17 in a flip-up manner, and the upper surface of the deck 18 is Finish it so that it can be used as a table.

In this embodiment, the motor 10 is used in common for traveling and for driving the lift chain, but in other embodiments, the clutch may be omitted and separate motors may be used.

Next, usage and operation will be explained.

Figures 6 and 7 show a chair 1 to which the laying machine of the present invention is applied, which is a stacking chair like the conventional one, with a backrest 1c and a seat plate 1d.
Legs 1a with continuous lower ends made of pipe material are provided on the left and right sides, and horizontal connecting members 1b are provided on the front surfaces of the legs 1a.

First, a case where the chairs 1 are arranged as shown in FIG. 5C and stored will be described.

The side plate 17' and the deck 18 are flipped up and out of the way, and the motor 10 moves the drive wheels 5a to move the trolley 3 in the backward direction, and the guide frame 6 is moved between the legs 1a of the chair 1 placed. Insert.

When the chair detection sensor 19 detects that the chair 1 has come to a predetermined position, the motor 14 is started and the rake lever 16 is rotated counterclockwise via the shaft 15, as shown in FIG. The horizontal tie 1b of the chair 1 is engaged from below, and the chair 1 moves forward onto the trolley 3. The lower end of the leg 1a rides on the guide rail 7 and the whole body is tilted, and the horizontal tie 1b is attached to the lift chain 8. It gets caught on one of hooks 9. and,
The lift chain 8 is moved by one pitch by the motor 10 to push the chair 1 up on the guide rail 7. Once one chair 1 is stored as described above, the trolley 3 is further advanced and the next chair 1 is stored in the same manner.

By moving the lift chain 8 one pitch at a time each time the next chair 1 is stored, a large number of chairs 1 can be stored on the trolley 3 while being stacked one on top of the other, as shown in FIG.

When a predetermined number of chairs 1 have been stored, the deck 18 and side panels 17' are left raised, and the trolley 3 is placed in a corner of the venue as shown in Figure 5A, as a substitute for a wall, etc. .

Next, when arranging the chairs 1, this is done by performing the opposite operation to the above-mentioned storage.

That is, the cart 3 is moved forward, the lift chain 8 is moved in the opposite direction, and the stored chairs 1 are dropped one by one into a predetermined position.

Since the chair 1 is housed on the guide rail 7 in an oblique state, it can be smoothly sent out simply by the movement of the lift chain 8.

Once a predetermined number of chairs 1 have been laid, the deck 18 and side panels 17' are returned to their original positions, and the trolley 3 is placed in front of the venue, as shown in FIG. 5C, to be used as a table or the like.

〔Effect of the invention〕

As described above, the automatic chair laying machine of the present invention has the following features:
All the operations of setting up and storing chairs at the venue can be performed automatically, and the labor and time for setting up the venue can be greatly reduced. In addition, the whole thing is lightweight and compact, so it can be easily operated by one person without damaging the floor, and it does not take up much space and can be placed in a part of the room, making it convenient to secure a storage place for chairs. be. This machine is placed in parallel,
By not operating at the same time, it is possible to accommodate an even greater number of chairs.

[Brief explanation of drawings]

Fig. 1 is a side view showing one embodiment of the automatic chair laying machine of the present invention, Fig. 2 is a plan view of the same, Figs.
The figure is a side view showing the state of use, Figure 5 is an explanatory diagram of an example of use, Figure 6 is a perspective view of the subject chair, Figure 7 is a side view of the same as above, and Figure 8 is a perspective view of a conventional example. . 1...Chair, 1a...Legs, 1b...Horizontal tie material, 1c...Backrest, 1d...Seat board, 2...Rack, 2a...Casters, 3...Self-propelled trolley, 4
... Chassis, 5 ... Wheels, 5a ... Drive wheels, 6
...Guide frame, 7...Guide rail, 8...
... Lift chain, 8a ... Drive shaft, 9 ... Hook, 10 ... Motor, 11 ... Brake, clutch, 12 ... Reducer, 13 ... Transmission mechanism, 14 ...
... Motor, 15 ... Shaft, 16 ... Raising lever, 17, 17' ... Side plate, 18 ... Deck, 19
...Chair detection sensor.

Claims (1)

[Claims] 1. A horizontal guide frame that is inserted between the legs of a chair is installed protrudingly, and two guide rails are installed in parallel so as to rise from near the base of this guide frame.
A lift chain with a large number of hooks protruding outward at a predetermined pitch is installed above each guide rail in parallel with the lift chain, and a lifting lever that engages with the horizontal tie material of the chair leg is installed on the front side of the lift chain. An automatic chair laying machine characterized by comprising a trolley with a built-in trolley.