JPS6245964Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a conveyance device using a trolley, which is capable of storing a long article that is longer than the trolley without causing the long articles to come into contact with each other even when the long article is loaded on the trolley. be.

Hereinafter, one embodiment of the present invention will be explained based on the attached illustrative drawings. In Figs. In addition, it is equipped with flexible wheels 4 that can freely roll on the floor surface at four locations in the front, rear, left, and right. 5,6
is a trolley connecting member that hangs downward from the center between the left and right wheels 4 at the front and rear of the trolley 1, and has a U-shaped front face that opens laterally. A through hole 8 in the vertical direction is provided in the U-shaped lower side portions 5a and 6a located above the carriage 1 so as to be located at the center position in the width direction of the truck 1. Reference numeral 9 denotes a front trolley unit, which includes a connecting rod 1 equipped with universal joints 10 and 11 at both ends.
It consists of a leading trolley 13 and a trolley 14 connected to the front part of the bogie, which are connected to each other by 2. 15 is a rear trolley unit, which has universal joints 1 at both ends.
A bogie rear connecting trolley 19 and a rear end trolley 2 are connected to each other by a connecting rod 18 having 6 and 17.
It is composed of 0. Each of the trolleys 13,
Reference numerals 14, 19, and 20 denote a pair of left and right, front and rear horizontal shaft wheels 22 to 25 that fit into a pair of left and right trolley running guide rails 21 installed below the trolley running floor 7, respectively, and the guide rails. The top trolley 13 is equipped with a pair of vertical axis rollers 26 to 29 for steady rest that fit between the lower sides of the trolley 21, and the top trolley 13 is further provided with a driven pawl 30 that can swing vertically. The rear connecting trolley 19 has vertical shafts 3 that fit into through holes 8 in the front and rear trolley connecting members 5 and 6 of the truck 1, respectively.
1 and 32, and the trailing end trolley 20 is equipped with an operation piece 33 for stopping the trailing leading trolley 13. still,
Vertical shafts 31 and 32 protruding from the trolley front connecting trolley 14 and the rear connecting trolley 19 are provided with stoppers 3 whose vertical positions can be changed in the vertical positions of the lower sides 5a and 6a of the trolley connecting members.
4a, 34b and 35a, 35b are attached.

Reference numeral 36 denotes a drive trolley equipped with a pusher 37, which is movably supported by a pair of left and right guide rails 38 installed below the guide rail 21 and along the guide rail 21.
is connected to. Incidentally, flat rails 40 on which the free wheels 4 roll are laid flush with the bogie running floor 7.

In the conveying device configured as described above, the drive trolley 36 is moved by the arrow 41 by the drive chain 39.
By being moved in the direction, the pusher 37 automatically engages with the driven pawl 30 of the leading trolley 14, and the vertical shaft 31 and the trolley connecting member 5 are connected to the front trolley unit 9 including the leading trolley 14.
The transport vehicle 1, whose front portion is connected via the transport vehicle 1, is propelled in the same direction. The rear trolley unit 15 follows and moves while being towed by the carrier 1. At this time, two locations on the front and rear of the transport vehicle 1 are connected to the front connecting trolley 14 and the rear connecting trolley 19.
The trolley connecting members 5, 6 and the vertical shafts 31, 32
Since the transport vehicle 1 is connected via
will move along the trolley running guide rail 21 without swinging left or right.

In the storage line, the driven claw 30 is disengaged from the pusher 37 by a stopper that can move in and out, and one transport vehicle 1 is stopped, so that the subsequent transport vehicle 1 is connected to the preceding stopped transport vehicle 1. The driven pawl 30 is moved by the pusher 37 by the rear end operating piece 33 of the rear trolley unit 15.
It is automatically disengaged and stopped. Then, the rear end trolley 20 on the preceding stopped transport vehicle side and the leading trolley 13 on the following transport vehicle side come into contact and prevent both the front and rear transport vehicles 1 from approaching within a certain distance. It is possible to store the protruding objects 2 without colliding with each other.

In addition, as shown in FIG. 4, both the front and rear trolleys 14,
The vertical shafts 31 and 32 protruding from the shaft 19 can be configured to be swingable back and forth around the horizontal horizontal shaft 42. In this case, a pair of upper and lower stoppers 34a, 34b and 35 are attached to the vertical shafts 31, 32.
a, 35b, the trolley connecting member lower side 5a,
Upper stoppers 34a and 35a on the sides that prevent the vertical shafts 6a and the vertical shafts 31 and 32 from coming apart are essential.
Further, in the above embodiment, the connecting rods 12 and 18 are connected to the vertical shaft 3.
1 and 32, but it may be directly connected to both the front and rear trolleys 14 and 19 as shown in FIG.

In addition, if it is necessary to prevent foreign matter such as dust from entering the guide slit 43 (see Fig. 3) formed on the bogie running floor 7, the guide slit 43 is removed as shown by the phantom line in Fig. 3. A cantilevered inverted L-shaped cover plate 44 is provided to cover the cover plate 44, and a curtain brush 45 is connected downward from the free side of the cover plate 44, and while pushing down the curtain brush 45, the trolley connecting members 5, 6 are connected. What is necessary is just to configure it so that the lower side portions 5a, 6a of .

The conveyance device using a trolley according to the present invention can be implemented and used as described above, and has the following characteristics:
A self-supporting transport vehicle equipped with wheels that roll on the floor, a front trolley unit and a rear trolley unit supported by a trolley running rail,
The front trolley unit includes a leading trolley having a driven pawl that engages with the pusher of the drive chain, and a trolley that is connected to the leading trolley via a universal joint and a connecting rod and is suspended from the front of the transport vehicle. The rear trolley unit is composed of a trolley for connecting the front part of the truck that engages with the connecting member, and the rear trolley unit includes a rear connecting trolley for the truck that engages with the trolley connecting member vertically installed from the rear part of the conveying truck, and a universal joint for this trolley. and a rear end trolley connected via a connecting rod and provided with an operating piece for disengaging the driven pawl of the following conveyance truck from the pusher of the drive chain.

According to such a conveyance device of the present invention, a self-supporting conveyance trolley equipped with wheels that rolls on the floor is used, for example, as in the conveyance device described in Japanese Patent Application Laid-Open No. 55-40145. Compared to a system in which a trolley that moves on a fixed path under the floor directly supports the object support stand above the floor, the trolleys connected to the front of the trolley units of the front and rear trolley units under the floor Since the vertical load of the conveyed object does not have to be applied to the trolley connected to the rear of the dolly, etc., these trolleys and their guide means, etc., which must be installed under the floor, can be constructed to be lightweight and compact, and can stand on the floor. The shaped transport trolley can stably support and transport even long and heavy objects.

When a pair of front and rear trolley units are connected to a transport vehicle that moves on the floor, the transport vehicle is guided so that its front and rear two points are always positioned on the trolley travel guide rail even on a curved path. The abutting conveyance cart can be propelled on the floor surface, and the conveyance action on the predetermined route can be carried out safely and satisfactorily. Moreover, the leading trolley with a driven claw in the front trolley unit is located at a distance in front of the transport vehicle, and the rear end trolley with an operating piece for stopping the following leading trolley in the rear trolley unit is located at the rear of the transport vehicle. To automatically stop a succeeding transport vehicle before the long articles collide with each other even when a long article longer than the conveyor is loaded on the conveyor because the conveyor is located at a distance. This allows for safe storage even on curved routes.

Furthermore, since the front and rear sets of trolley units are connected by the transport vehicle, the length of the front and rear sets of trolley units themselves is the total length (from the leading trolley of the front trolley unit to the rear end trolley of the rear trolley unit). The length of the trolley unit is significantly shorter than that of the vertical shafts 31, 3, and can be constructed at low cost.
Even in the case where only the trolley unit (when the trolley connecting members 5 and 6 on the trolley side are pulled out from the trolley unit 2) is stored, the area occupied by the storage can be greatly reduced.

[Brief explanation of the drawing]

Figure 1 is a partially longitudinal side view showing the state of use;
The figure is a plan view showing the transport vehicle and both the front and rear trolley units in the same state, FIG. 3 is a longitudinal sectional front view in the same state, and FIGS. 4 and 5 are side views of main parts showing modified examples. . 1... Transport truck, 4... Flexible wheels, 5, 6...
Trolley connecting member, 7... Trolley running floor surface, 8...
Through holes in the lower sides 5a and 6a of the trolley connecting member,
9, 15... Front and rear trolley units, 10, 1
1, 16, 17... Universal joint, 12, 18... Connection rod, 13, 14, 19, 20... Trolley, 2
DESCRIPTION OF SYMBOLS 1... Trolley running guide rail, 30... Driven pawl, 31, 32... Vertical shaft, 33... Operation piece for stopping the following leading trolley, 34a to 35b... Stopper, 36... Drive trolley, 37... Pusher , 39...driving chain.

Claims (1)

[Scope of utility model registration request] It has a self-supporting carrier equipped with wheels that roll on the floor, and a front trolley unit and a rear trolley unit that are supported by trolley running rails, and the front trolley unit is connected to the pusher of the drive chain. a leading trolley having an engaging driven pawl; and a trolley front connecting trolley connected to the leading trolley via a universal joint and a connecting rod and engaging with a trolley connecting member hanging from the front of the transport vehicle. The rear trolley unit consists of a rear trolley connecting trolley that engages with a trolley connecting member vertically installed from the rear of the transport vehicle, and a rear trolley connected to this trolley via a universal joint and a connecting rod, and connected to the rear trolley unit of the following transport vehicle. A conveyance device using a trolley, comprising a rear end trolley provided with an operation piece for releasing the engagement between the driven pawl and the pusher of the drive chain.