JPH0536784Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a conveying device with a tray that is self-propelled while being guided by a single guide rail.

(Prior art and its problems) Conventional monorail conveyance devices of this type have a self-propelled carriage and a The structure was such that the tray was suspended using a driven trolley.
Therefore, the self-propelled cart, driven cart, and guide rail are located above the tray, making it difficult to load and unload cargo onto the tray.

Furthermore, even if the height of the load placed on the tray is low, the height of the entire device including the guide rails will be high, and not only will it be necessary to secure a large vertical space along the entire transport path. Since the installation height of the guide rail becomes high, it is not possible to support the guide rail from the floor, and a beam with sufficient strength is required to suspend the guide rail from the ceiling. There were many restrictive conditions.

Of course, as a monorail type conveyance device that is considered to be able to solve the problems of such a tray hanging type monorail type conveyance device, for example, the one described in Japanese Utility Model Publication No. 52-35765 is There is also known a conveyance device in which the tray is supported at the top end of the cart, but in a conveyance device with such a configuration, the load placed on the tray is located at the top end of the conveyance device. , the center of gravity of the entire device becomes very high, and the load is located directly above one guide rail, making it extremely unstable. If there is even a little play in between,
The tray tends to swing from side to side, making it unsuitable for transporting loads that tend to collapse.

Even if the guide rails were installed at a low level above the floor, the height of the tray above the floor would be high, which would still make loading and unloading of cargo difficult.

(Means for Solving the Problems) The present invention has been made to solve the conventional problems as described above, and its features are shown with reference numerals in the embodiments described below. The monorail type conveyance device of the present invention includes one guide rail 1 having a longitudinal cross-sectional shape, a self-propelled cart 4 and a driven cart 5 arranged on one left and right sides of the guide rail 1, and one on the other left and right sides of the guide rail 1. It is a monorail type conveyance device equipped with a tray 6 installed in the tray 6, the guide rail 1 is supported by a guide rail support column 2 attached to one side of the tray 6, and the self-propelled cart 4 is The driven truck 5 includes a drive wheel 9 rolling on the guide rail 1, a motor 10 for driving the drive wheel, and vertical shaft rollers 11a, 11b, and 23 for preventing falling that sandwich the guide rail 1 from both left and right sides.
is an idle wheel 20 rolling on the guide rail 1
and vertical shaft rollers 21a, 21b, 23 for preventing falling that sandwich the guide rail 1 from both left and right sides,
The tray 6 consists of a horizontal loading section 25 and an inverted L-shaped bracket 26 that extends upward from the inner end of the loading section 25.
It is characterized in that it is positioned so as to cover the lateral sides and upper part of the guide rail 1 and is supported by the upper ends of the self-propelled truck 4 and the driven truck 5.

(Example) Hereinafter, an example of the present invention will be described based on the attached illustrative drawings.

Reference numeral 1 denotes a guide rail with a vertical cross-sectional shape, and the upper ends of guide rail support columns 2 erected at appropriate intervals on the floor are attached to one side of the guide rail, so that the guide rail can be raised to an appropriate height above the floor. It will be erected horizontally. Reference numeral 3 denotes a transport traveling device, which includes a self-propelled cart 4 and a driven cart 5 that run on the opposite side of the guide rail 1 from the side where the guide rail support column 2 is located, and It is composed of a cantilevered tray 6 that runs on the side where the support column 2 is located.

The self-propelled truck 4 includes a vertical machine frame 7 located on one side of the guide rail 1, a reducer 8 attached to the upper end of this vertical machine frame 7, and a speed reducer 8 from which the guide rail 1 is connected.
A drive wheel 9 with a groove is attached to an output shaft projecting laterally to a certain side and fits into the upper end 1a of the guide rail 1, and a drive wheel 9 with a groove is attached to the driven truck 5 side of the reducer 8 in the front-rear direction and is attached to the drive wheel 9 in the front-rear direction. The motor 10 has a built-in brake and is connected to the drive wheels 9 via a reduction mechanism using hypoid gears in the motor 8. Further, at the lower end of the vertical machine frame 7, there are vertical shaft rollers 11a and 11b for preventing falling that sandwich the lower end 1b of the guide rail 1 from both left and right sides.
At the upper end of the vertical machine frame 7, a vertical shaft roller 13 for preventing falling, which comes into contact with the side of the guide rail upper end 1a where the vertical machine frame 7 is located, is supported via a bracket 14. There is.

Note that a guide rail 1 is provided on the side of the vertical machine frame 7.
A current collector unit 16 is attached to slide on the power supply and control signal exchange rails 15a to 15d laid on the side opposite to the side where the guide rail support column 2 is located. 17 is motor 1 with built-in brake
0 is a brake release lever, and 18 is a detector that detects that the brake release lever 17 is in the brake release position.

The driven truck 5 includes a vertical machine frame 19 located on one side of the guide rail 1, and a grooved idler wheel 20 that is pivotally supported on the upper end of the vertical machine frame 19 and fitted into the upper end 1a of the guide rail 1. We are prepared. Further, at the lower end of the vertical machine frame 19, vertical shaft rollers 21a and 21b for preventing falling, which sandwich the lower end 1b of the guide rail 1 from both left and right sides, are pivotally supported via a bracket 22. A vertical shaft roller 23 for preventing falling that comes into contact with the side of the upper end 1a of the guide rail where the vertical machine frame 19 is located is pivotally supported via a bracket 24.

The tray 6 is composed of a horizontal loading section 25 and an inverted L-shaped bracket 26 connected from the inner end of the loading section 25. Loading section 25
is located at a level near the lower end of the guide rail 1 so as to sandwich the guide rail support column 2 between it and the guide rail 1, and the bracket 26 is located so as to cover the lateral sides and upper part of the guide rail 1. It is supported by the upper end of the self-propelled truck 4 (the upper end of the speed reducer 8) and the upper end of the driven truck 5 (the upper end of the vertical machine frame 19).

The conveyance traveling device 3 configured as described above is
By rotating the drive wheel 9 in any forward or reverse direction by the motor 10, it is possible to travel along the guide rail 1 in any direction forward or backward. It can be transported along the rail 1.

Therefore, due to the load acting on the loading section 25 of the tray 6, the self-propelled cart 4 and the driven cart 5 are caused to fall over using the fitting portion between the driving wheel 9 and the idle wheel 20 and the guide rail 1 as a fulcrum. Although the moment acts,
This overturning moment is guided by vertical shaft rollers 13, 23 on the upper side of each cart 4, 5 and vertical shaft rollers 11a, 21a located on the lower side opposite to these rollers. rail 1
The tray 6 is received by the upper and lower ends 1a and 1b of the tray 6, and the tray 6 can travel on one side of the guide rail 1 while maintaining a normal posture in which the load carrying portion 25 is horizontal.

(Operations and effects of the invention) As described above, according to the monorail conveyance device of the invention, the trays and carts (self-propelled cart and driven cart) are distributed and arranged on both the left and right sides of one guide rail, Furthermore, the position of the loading section of the tray is lowered by the tray's inverted L-shaped bracket, and the load placed on the loading section is located on the side of the guide rail or cart. Therefore, the height of the entire device including the guide rail and the load placed on the tray can be made very low.

Therefore, the transport route can be set without any problems even in places where the vertical width of the space is narrow, and the guide rail can be easily erected on the floor using the guide rail support struts attached to the side of the guide rail. You can.

The position of the loading area of the tray is lowered by the tray's inverted L-shaped bracket, making it possible to make the height from the floor sufficiently low.Moreover, there is a guide rail above the loading area. Since there are no obstacles such as trolleys or trolleys, loading and unloading of cargo onto trays can be done extremely easily from the floor.

Since the load placement portion of the tray is low, the center of gravity of the entire traveling device is very low even when a load is placed on the load placement portion. In addition, the loading area of the tray is separated from the cart with a guide rail in between, so the direction of the overturning moment acting on the truck during load transportation is constant in the direction in which the loading area of the tray is lowered. As long as the overturning caused by this overturning moment is prevented by the vertical axis rollers for preventing the carts from falling, there is no risk that the carts will wobble from side to side.

For these reasons, the traveling device consisting of a tray and a truck has excellent stability and can safely transport even loads that are prone to collapse.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view, and FIG. 2 is a side view. DESCRIPTION OF SYMBOLS 1... Guide rail, 2... Guide rail support column, 4... Self-propelled trolley, 5... Driven trolley, 6...
...Tray, 7, 19...Vertical machine frame, 8...Reducer, 9...Grooved drive wheel, 10...Motor with built-in brake, 11a, 11b, 13, 21a, 21
b, 23... Vertical shaft roller for preventing falling, 20...
Idling wheel with groove, 25...Tray loading section, 2
6...Inverted L-shaped bracket for the tray.

Claims (1)

[Scope of Claim for Utility Model Registration] One guide rail 1 having a longitudinal cross-sectional shape, a self-propelled truck 4 and a driven truck 5 arranged on one left and right side of the guide rail 1, and one on the other left and right side of the guide rail 1. It is a monorail type conveyance device equipped with a tray 6 installed, the guide rail 1 is supported by a guide rail support column 2 attached to one side of the tray 6, and the self-propelled cart 4 is mounted on the guide rail 1. The driven truck 5 includes a drive wheel 9 that rolls on the rail 1, a motor 10 that drives the drive wheel, and vertical shaft rollers 11a, 11b, and 23 for preventing falling that sandwich the guide rail 1 from both left and right sides. 1 and vertical shaft rollers 21a, 21b, 23 for preventing falling that sandwich the guide rail 1 from both left and right sides.
The tray 6 is made up of a horizontal loading section 25 and an inverted L-shaped bracket 26 that extends upward from the inner end of the loading section 25.
is a monorail type conveyance device which is positioned so as to cover the lateral side and upper side of the guide rail 1 and is supported by the upper ends of a self-propelled truck 4 and a driven truck 5.