JPS61135856A - Load cart - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a load carrier used when conveying various articles using load carriers such as pallets and packets.

[Conventional technology]

For example, such a load carrier transports goods while traveling between a main station for supplying loads and a work section side station for consignees, and the load carrier is moved between the two stations. It is necessary to transfer a loaded cargo carrier and an empty cargo carrier by exchanging them at one station.For this reason, in the past, for example, if you explain the transfer to the main station, As shown in FIG. 5, the vehicle body is provided with a loading section (AI) for a loaded load carrier and a loading section (A2) for an empty load carrier, or as shown in FIG. As shown, the transport vehicle (B
1) and the transport vehicle (B2) for the empty load carrier may be operated at the same time, or as shown in FIG.
A supply section (C1) for a loaded load carrier and a receiving section (C1) for an empty load carrier are installed in each station (S).
C2), or as shown in FIG. 8, two stations (S) may be provided in pairs, with one serving as a receiving section for a loaded load carrier and the other It was designed to be used as a supply section for empty load carriers.

[Problem that the invention seeks to solve]

According to the above-mentioned conventional means, there is a disadvantage that the load transport rate becomes large in the case shown in FIG. 5, and in the case shown in FIG. In addition, in the case shown in Fig. 7, there is a disadvantage that the installation space of the station (S) becomes large and the configuration of the station (S) becomes complicated and expensive. In the case shown in FIG. 8 as well, as in the case shown in FIG. 7, there are disadvantages in that the installation space for the station (S) becomes large and the configuration of the station becomes complicated and expensive.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to suppress the increase in load transfer rate by rational modification that effectively utilizes the small weight of empty load carriers. However, while simplifying the station,
The purpose is to allow goods to be transported efficiently.

[Means for solving problems]

The characteristic structure of the load transfer rate according to the present invention is such that a load carrier transfer device capable of freely transporting an empty load carrier between the upper part of the loading space and the station is used to transfer goods to and from the loading space. The point is that it is equipped in a permissible state, and its effects are as follows.

[For production]

In other words, by using the space above the loading space, an empty load carrier can be transported at the same time as a loaded load carrier at a load transfer rate of 1, and moreover, regardless of whether the load carrier is empty or The transfer of goods to and from the loading space, that is, the supply of loaded load carriers from the vehicle body to the station, and the supply of loaded load carriers from the station to the vehicle body, can be carried out as desired. be.

〔Effect of the invention〕

Therefore, although an empty load carrier and a loaded load carrier are simultaneously transported by one vehicle, the empty load carrier is positioned above the loading space. Therefore, the vehicle body can be made smaller, and in addition, an empty cargo carrier can be delivered to and received from a station, and a loaded cargo carrier can be delivered to and received from the station while the vehicle is stopped at the same location. As a result, a large load transfer rate has been achieved, which has practical advantages, not only in terms of vehicle body construction but also in terms of transfer efficiency and station installation.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figures 1, 2, and 4, the loading area (A
), a light-reflecting tape (T) for forming a guided vehicle guideway is provided on the traveling road side,
A pair of front and rear optical sensors (1) for following the taxiway are selectively provided at the load transfer rate (B), and are used to supply goods placed on a pallet (X) as a load carrier and to The main station (S) receives the pallet (X) in
A plurality of work section side stations (ST) that accept Ta) and loaded Parekh) (X) and supply empty valley Z) (X) are located on the sideways part of the taxiway. With this arrangement, various articles are conveyed while traveling between stations at a load conveyance rate (B).

The transport vehicle (B) includes a pair of left and right propulsion wheels (
2) is provided so that it can be driven independently by a pair of electric motors (M), so that the speed of each electric motor (M) is changed based on the detection information of the optical sensor (1) to perform steering. It is configured. In addition, each station (STa), (
A pair of left and right light emitters and receivers (4) for detecting the stop position with respect to STa) is provided on the sideways portion of the transport vehicle to detect the stop position of each station (STa).

By stopping the station (ST) as it receives the reflected light from the reflector (5) provided at the station (ST),
), (ST) so that it can be stopped at a fixed position.

The load carrying section (A) includes a load carrying roll (6).
A large number of these are arranged in parallel in the width direction of the vehicle body with the intervals decreasing in the longitudinal direction of the vehicle body, and a pair of cargo guides (7) are provided in the front and rear, and a pair of pallet locking tools (K) are provided. is installed so that it can be undulated and swung freely.

To explain the stations (STa) and (ST), a roller conveyor (8) for transporting goods is provided in a freely drivable manner, and a goods transport vehicle (B) is stopped beside the station.
The structure is such that transfer work can be carried out between the two.

The empty load carrier (X) is loaded onto the load carrier (B) above the summer space and the stations (ST) and (STa).
A load carrier transfer device (D) that can be freely transferred between ), (STa) and the station (ST) for delivering and receiving the pallet (X) with cargo type a.

The structure is such that transfer to and from (STa) can be performed with respect to the same stages (ST) and (STa) while they are stopped at the same position.

To describe the load carrier transfer device CD) in detail, the first
As shown in Figures 3 and 3, two arms (9) consisting of a pair of front and rear links (9a) and (9b) that are swingable in the width direction of the vehicle body are provided at the front and rear sides of the loading summer space. , an inverted T-shaped link (10a) connected between the free ends of the links (9a) and (9b), an inverted T-shaped pressing tool (10b), and the pressing tool (10b) connected to the link (
A load carrier support part (10) consisting of a fluid pressure cylinder (10c) that is operated in the vehicle width direction with respect to 10a) is provided on the free end side of each arm (9), and the link (9a)
, (9b), the electric motor (11) for swinging operation is connected to the spindle of the link (9a) and the motor (
11) Transmission shafts (
12) to the link (9a), thereby moving the load carrier support part (10) to the load carrier delivery/receiving position where the load carrier is laid down on the station side and to the contrarian carrier holding position where the load carrier is protruded to the upper side of the vehicle body. It is constructed so that it can be undulated and swung throughout.

In other words, the load carrier (B) is
), the loaded pallet (X) is first received in the loading area (A), and then the empty pallet (X) is delivered to the station (STa). In addition, when the load carrier (B) is stopped beside the work station (ST), the empty pallet (X) is first transferred to the vehicle body by the lamination transport layer transfer device (D). Next, the loaded pallet (x) is transferred from the loading section (^) to the station.
- However, the support frames (13) of the links (9a) and (9b) are attached to the rollers (15) on the guide frame (14) on the vehicle body side.
), and a fluid pressure cylinder (16) is provided to raise and lower the guide frame (14), and the power transmission shaft (12) is equipped with an extensible and retractable spline sliding part. When the height of the load carrier f (D) becomes large, the load carrier transfer device f (D) can be moved upward.

[Another example]

Next, another embodiment will be described.

In addition to pallets, various types of objects such as buckets can be used as the load carrier (X), and a load carrier transfer device (
The specific configuration of D) can be changed in various ways, such as changing depending on the configuration of the load carrier (X).

For example, a first arm that is extendable in the width direction of the vehicle body is provided above the loading space, a second arm that is extendable in the vertical direction is attached to the tip of the first arm, and the lower end of the second arm is provided. A load carrier support section may be provided in the section.

Furthermore, when constituting the load carrier (B), the specific configuration of each part can be changed in various ways depending on the intended use, and when controlling the vehicle to run automatically, the specific configuration for the control can also be changed in various ways. .

[Brief explanation of drawings]

The drawings show an embodiment of the load carrier according to the present invention, and FIG. 1 is a perspective view of the load carrier stopped beside a station, FIG. 2 is a schematic front view of the vehicle, and FIG. 3 is a diagram of the load carrier. A side view of the transfer device, FIG. 4 is a schematic diagram of the transfer equipment. Figures 5 to 8
The figure is a schematic plan view of a conventional example. (9)...Arm, (10)...Load carrier support section, (D)---Load carrier transfer device,
(STa), (S?) -・”Station, (X
)... Load carrier.

Claims (1)

[Scope of Claims] [1] A load carrier transfer device (D) capable of freely transporting an empty load carrier (X) between the upper part of the loading space and the stations (STa) and (ST); A load carrier equipped in a state that allows goods to be transferred to and from the load loading space. [2] The load carrier transfer device (D) includes an arm (9) having a load carrier support portion (10) on the free end side,
The load carrier according to claim 1, wherein the load carrier is swingable up and down between a load carrier delivery/reception position laid down on the station side and a load carrier holding position protruding upward from the vehicle body. .