JPS6229099Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sliding device for a telescopic boom provided with a nozzle in a spray machine.

That is, the present invention provides a boom that is extendable and retractable from its tip in the longitudinal direction of the original boom, a sprocket that is mounted on a drive shaft that is provided on the base side of the original boom, and a driven shaft that is provided on the tip side of the boom. A guide roller is mounted on the shaft, and a transmission band is stretched between the sprocket and the guide roller, which is made by connecting a chain and a wire to form an endless band with both ends attached to the base of the tip boom. The gist of this paper is the structure of a slide device for a boom for a sprayer.

To explain the present invention according to the illustrated embodiment, 1 is a base boom, the base of which is attached to the sprayer main body so as to extend, for example, in the left and right direction of the sprayer main body. In addition, the mounting base is rotatable so that the main boom 1 can be folded upward or in the front-rear direction.
This base boom 1 is constructed as a cylinder or a frame made of a suitable material. Reference numeral 2 is a tip boom, which is stored inside the main boom and can be extended as appropriate from the tip of the main boom 1.
The boom 2 is also constructed of a suitable material in a cylindrical shape or as a frame. It is effective if these booms 1 and 2 are made of lightweight aluminum pipes. Reference numeral 3 denotes a nozzle, which is arranged in the longitudinal direction of the base boom 1 and the front boom 2. Reference numerals 4 and 4 refer to base boom rollers, which are provided at the top and bottom of the inside of the tip of the base boom 1, and fit into and guide the front boom rails 5, 5 provided in the longitudinal direction at the top and bottom of the outside of the base boom 2. It's starting to roll. Reference numerals 6 and 6 refer to front boom rollers, which are provided on the top and bottom of the outside at the base of the front boom 2, and are fitted into the base boom rails 7, 7 provided in the longitudinal direction on the top and bottom of the inside of the base boom 1 to guide rotation. It's starting to move.
By fitting these base boom rollers 4, 4, front boom rollers 6, 6, and front boom rails 5, 5, and base boom rails 7, 7, the front boom 2 can easily move in and out of the base boom 1. It is done. Reference numeral 8 denotes a drive shaft, which is provided on the base side of the former boom 1, is rotationally driven by an orbit motor 9, and supports a sprocket 10. Reference numeral 11 denotes a driven shaft, which is rotatably provided on the front end side of the former boom 1, and supports the guide roller 12 thereon. Reference numeral 13 is a transmission band, which is stretched between the sprocket 10 and the guide roller 12, and a chain 14 that meshes with the sprocket 10.
and a wire 15 that fits into the guide roller 12 are connected, and both ends thereof are fixed to support protrusions 16 provided at the base of the tip boom 2, thereby forming an endless band. 17,1
Reference numeral 7 is a stopper, which is provided at the front and rear positions of the front boom 2, and by abutting against the stops 18 provided at the tip of the front boom 1,
This is for regulating the extension/retraction position of the front boom 2.

The present invention is constructed as described above, and by driving the orbit motor 9, the drive shaft 8 is
When the sprocket 10 is rotated, the chain 13 of the transmission band 10 that meshes with the chain 13 of the transmission band 10 moves, and the end boom 2 to which the transmission band 10 is fixed can be moved and extended from the original boom 1, making it possible to extend the chain 13 from the original boom 1. Can be used as a boom. Furthermore, if the orbit motor 9 is driven in the reverse direction, the drive shaft 8 and sprocket 10 are reversely driven, and the chain 13 of the transmission band 10 that meshes with the drive shaft 8 is moved in the opposite direction. It can be stored within 1.

According to the present invention, there is a practical advantage that the size can be reduced without requiring a wire drum unlike the conventional slide device using only wires. In addition, the present invention has the practical benefit of halving the increase in weight due to a long chain, unlike conventional slide devices using only a chain, and provides a device that is simple in structure and lightweight as a whole.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; Fig. 1 is a partially cutaway plan view, Fig. 2 is a longitudinal side view, and Fig. 3 is a longitudinal side view with the tip boom extended. be. The symbols in the figure are explained as follows. 1 is the original boom, 2 is the front boom, 3 is the nozzle, 4
is the original boom roller, 5 is the front boom rail, 6 is the front boom roller, 7 is the original boom rail, 8 is the drive shaft, 9 is the orbit motor, 10 is the sprocket, 11 is the driven shaft, 12 is the guide roller, 13
is a transmission band, 14 is a chain, 15 is a wire, 1
6 is a support projection, 17 is a stopper, and 18 is a hit.

Claims (1)

[Scope of utility model registration request] The boom is extendable and retractable from its tip in the longitudinal direction of the original boom, and a sprocket is mounted on a drive shaft provided at the base of the original boom, and a guide roller is attached to a driven shaft provided on the tip side. A boom for a spray machine, characterized in that a power transmission band formed by connecting an endless chain and a wire with both ends attached to the base of the front boom is stretched between a sprocket and a guide roller. slide device.