JPH079875Y2 - Hose winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a hose winding device, and more particularly to a hose winding device used in a liquid spraying device.

(Prior Art) Generally, this type of winding device is used together with a liquid spraying device including a prime mover, a pump device driven by the prime mover, a nozzle, and a hose connecting the pump device and the nozzle to each other. The hose is wound around the take-up drum.

When controlling the rotation of the winding drum, a transmitter and a receiver for receiving a transmission signal transmitted from this transmitter are used, as seen in Japanese Utility Model Laid-Open No. 60-132881. ing.

That is, the hose is provided with a tension wheel that transmits power from the prime mover to the winding drum through a transmission belt, and that tensions and relaxes the transmission belt, a motor that operates the tension wheel, and the receiver. At the time of pulling out, the motor is operated via the receiver by the transmission signal from the transmitter, the tension wheel is moved in the direction in which the transmission band is relaxed, and the winding drum can be freely rotated. ,
When the hose is wound, a motor is operated via a receiver by a transmission signal from the transmitter, and the tension wheel is moved in a direction in which the power transmission belt is tensioned to drive the winding drum. It was made.

(Problems to be solved by the invention) However, according to this conventional one, when the hose is pulled out, the take-up drum rotates freely, so that the pulled-out hose moves along the ground. Therefore, when a worker who carries out the spraying work with the nozzle connected to the tip of the hose changes direction, there is a problem that the drawn-out hose catches on the crop and interferes with the spraying work. When attached to a moving carriage and performing the spraying work while moving or moving the moving carriage straight, the drawn-out hose is
Not only is there a problem of being caught in the crop and hindering the spraying work, but there is also the problem of stepping on the drawn hose and hooking the hose on a moving carriage.

The present invention has been made in view of the above problems, and is intended to prevent a hose drawn from a winding drum from crawling on the ground.

(Means for Solving the Problems) In the present invention, the take-up drum (2) is rotatably supported on the mount (1) and is rotated by the power from the prime mover. A drive wheel (3) for transmitting and blocking transmission to and a brake body (5) for applying a braking force to the rotation of the winding drum (2) are movably provided,
The drive wheel (3) is urged in the power transmission direction by the first spring (6), and on the hose pull-out side of the winding drum (2),
The hose drawn out from the winding drum (2) is movable in a direction in which the hose is tensioned / relaxed, and the hose is engaged,
A pull-out tension force detection body (4) for detecting a pull-out tension force of the hose due to the tension / relaxation is provided, and the detection body (4) is urged by the second spring (7) in a direction in which the hose is relaxed and driven. The ring (3) and the detection body (4) are connected to the detection body (4) by the first interlocking means by increasing the pulling tension force.
Drive wheel (3) moves in the direction of shutting off power transmission,
When the detection body (4) moves due to a decrease in the pulling tension, the drive wheel (3) is interlocked so as to move in the power transmission direction, and the drive wheel (3) and the braking body (5) are connected to each other. The interlocking means moves the braking body (5) in the braking direction when the drive wheel (3) moves in the power transmission blocking direction, and when the driving wheel (3) moves in the power transmission direction, the braking body (5). Is linked to move in the braking release direction.

(Operation) When the hose pull-out tension acting on the detection body (4) increases when the hose (H) is pulled out from the winding drum (2), the detection body (4) resists the second spring (7). The hose moves in the direction in which the hose is tensioned, and as the detector (4) moves in the direction in which the hose is tensioned, the drive wheel (3) acts against the first spring (6) via the first interlocking means. While moving in the transmission blocking direction,
The movement of the drive wheel (3) is transmitted to the braking body (5) through the second interlocking means, the braking body (5) moves in the braking direction, and the winding drum (2) is moved to a predetermined control position. It will rotate with power applied. Therefore, when pulling out the hose from the winding drum (2), the hose is pulled out against the rotation resistance of the winding drum (2), and therefore the hose can be prevented from being pulled out excessively. , This hose can be prevented from crawling on the ground. When the pulling tension of the hose acting on the detection body (4) decreases due to the change of the spraying work direction, the detection body (4) moves in the hose relaxation direction by the force of the second spring (7), and this detection Along with the movement of the body (4) in the hose relaxing direction, the drive wheel (3) is moved by the first spring (6) in the power transmission direction via the first interlocking means, and the drive wheel (3) is also moved. Is transmitted to the braking body (5) via the second interlocking means, the braking body (5) moves in the braking releasing direction, and the winding drum (2) is driven by the power from the drive wheels (3). By automatically winding the drawn-out hose, it is possible to prevent the hose from crawling on the ground.

(Example) The winding device of the present invention mainly comprises a prime mover (E), a pump device (P) driven by the prime mover (E), a nozzle (N), and the pump device (P) and the nozzle (N). The hose (H) is wound in a liquid spraying device including a hose (H) that connects the winding drum and the hose (H). In the illustrated embodiment, the hose (H) is wound around the mount (1) via a pair of bearings. While supporting (2) rotatably, the mount (1)
In addition, a drive wheel (3) that is rotated by power from the prime mover (E) and transmits and blocks this power to and from the drum (2).
And a braking body (5) for applying a braking force to the rotation of the winding drum (2) are movably provided via swinging arms (31) (51), respectively, and the drive wheel (3) is pulled. The first spring (6), which is a spring, urges the power in the power transmission direction (direction of the winding drum 2), and draws it from the winding drum (2) to the hose withdrawing side of the winding drum (2). A hose (H) that is movable in a direction in which the hose (H) is tensioned / relaxed, and a withdrawal tension force detector (4) that engages the hose (H) and detects a hose withdrawal tension force due to the tension / relaxation is provided, The detection body (4) is biased in the direction in which the hose is relaxed (clockwise direction in FIG. 1) by the second spring (7) composed of a tension spring, and the drive wheel (3) and the detection body (4) are connected to each other. The first
By the interlocking device, when the detection body (4) moves due to the increase in the pulling tension force, the drive wheel (3) moves in the power transmission blocking direction (clockwise direction in FIG. 1), and the detection body due to the decrease in the pulling tension force. During the movement of (4), the drive wheel (3) is interlocked so as to move in the power transmission direction (counterclockwise direction in FIG. 1), and the drive wheel (3) and the braking body (5) are The interlocking means moves the braking body (5) in the braking direction when the drive wheel (3) moves in the power transmission blocking direction, and when the driving wheel (3) moves in the power transmission direction, the braking body (5). Is interlocked so as to move in the braking release direction.

In the above structure, a drive surface (21) facing the drive wheel (3) is provided on the outer periphery at one side in the axial direction of the winding drum (2), and the braking body (5) is provided on the inner periphery. An annular portion having opposing braking surfaces (22) is provided.

Further, a hose guide (81) for guiding the hose (H) in the axial direction of the winding drum (2) is provided on the frame (1).
And a reciprocating mechanism (not shown) that reciprocates the hose guide (81) in association with the rotation of the winding drum (2). 2)
When driving, the hose guide (81) is moved so that the drawn out hose (H) can be wound in an aligned manner, and the hose guide (81) is positioned above the aligning device (8) on the gantry (1). Provides a swing guide (9) so as to be rotatable about a vertical axis, and bends a hose laterally drawn from the winding drum (2) upward and downward by the hose guide (81). After that, it is bent laterally by the swing guide (9). Further, the hose guide (81) is rotatable about the horizontal axis.

The drive wheel (3) is a transmission wheel (10) rotatably supported on the gantry (1) via bearings, and the transmission wheel (1).
The drive shaft of the prime mover (E) is interlocked with a power transmission means such as a power transmission band (11) hung on (0), and the swinging motion of which one end is pivotally supported by the mount (1). The driving wheel (3) is pivotally supported on the tip of the moving arm (31),
The outer peripheral surface of the drive wheel (3) is brought into pressure contact with the outer peripheral surface of the transmission wheel (10) so as to be constantly rotated by the power from the prime mover (E). The drive wheel (3) is configured to be pressed against the drive wheel (10) to drive the drive wheel (3), and a drive belt such as a chain is provided between the drive wheel (3) and the drive wheel (10). It may be hung and driven.

Further, the detection body (4) is composed of a roller, and the detection body (4) is pivotally supported on the tip end of a swing arm (41) whose one end is pivotally supported on the hose guide (81). Guide (8
A hose passing between 1) and the oscillating guide (9) is engaged so that the hose can move in a direction of tension / loosening.

The braking body (5) is provided at the tip of the swing arm (51) whose one end is pivotally supported on the mount (1) and faces the braking surface (22).

The first interlocking means connects the arm rod (42) extending outward from one end of the arm (41) and the arm rod (32) extending outward from one end of the arm (31). Wire (1
2) and the wire, and guide the hose guide (8
1) and an interlocking rope (14) having an outer cylinder (13) supported by the mount (1), and the force of the second spring (7), which is a tension spring, is transferred to the arm rod (32). Is transmitted to the arm (41) through the connecting wire (12) and the arm rod (42), and the detection body (4) pivotally supported by the arm (41) is urged in the direction in which the hose (H) relaxes. On the other hand, the movement of the detection body (4) is transferred to the drive wheel (3) via the arm (41), arm rod (42), interlocking wire (12), arm rod (32) and arm (31). I am trying to communicate.

Further, one tension spring which doubles as the first spring (6) and the second spring (7) is interposed between the arm rod (32) of the arm (31) and the mount (1). The force of this spring presses the drive wheel (3) against the drive surface (21) to urge the detection body (4) clockwise in FIG.

Further, the second interlocking means is capable of freely moving the tip end portion of the rod (15) whose one end is pivotally supported by the intermediate portion of the arm (31) to the receiving piece (52) projecting from the arm (51). In addition to supporting, the rod (15) is provided with a contact (16) facing the receiving piece (52), and the arm (51) and the pedestal (1) are provided.
And a braking spring (16) for urging the braking body (5) in the direction of the braking surface (22) are provided, and when the driving wheel (3) moves in the power transmission interruption direction, the braking body (3) (5) is pressed against the braking surface (22) by the force of the braking spring (16) to apply a predetermined braking force to the rotation of the winding drum (2).

In the figure, (17) is a transmission band for transmitting the rotation of the winding drum (2) to the aligning device (8), and (T) is a water storage tank.

The winding device configured as described above is mounted on, for example, a moving carriage (A) including four wheels and the nozzle (N),
The hose (H) connecting the pump device (P) and the nozzle (N) is wound around the winding drum (2) of the winding device. And the prime mover (E) in the liquid spraying device
The pump device (P) is supported by a frame (F), and the frame (F) is fixed to, for example, the ground so as not to move even when a predetermined tension is applied to the hose (H). Further, in the case of performing the spraying work, by driving the prime mover (E), the pump device (P) is driven, and the pressurized liquid discharged from the pump device is supplied to the nozzle (N) through the hose (H). Supply. Further, when the prime mover (E) is driven, the drive wheels (3) are rotating.

Then, when the movable carriage (A) is self-propelled to disinfect the crops planted in the ridges such as fields, the hose (H) wound around the winding drum (2) is pulled out. . By pulling out the hose (H), the detection body (4) moves counterclockwise in FIG. 1 against the second spring (7), and the movement of the detection body (4) is caused by the first interlocking means. Is transmitted to the driving wheel (3) via the driving wheel (3), and the braking body (5) is moved in the braking direction by the braking spring (16) of the second interlocking means in accordance with the operation of the driving wheel (3), A predetermined braking force can be applied to the rotation of the winding drum (2) by pressing the braking surface (22). Therefore, when pulling out the hose from the winding drum (2), the hose is pulled out against the rotational resistance of the winding drum (2), so that the hose can be prevented from being pulled out excessively. This hose can be prevented from crawling on the ground.

Further, when the hose pull-out tension force acting on the detection body (4) decreases, such as when the movable carriage (A) is swung to change the spraying work direction, the detection body (4) uses the second spring (7). 1 is moved in the clockwise direction in FIG. 1, and the detection body (4) moves from the swing arm (41) and the arm rod (42) to the first interlocking means, the arm rod (32), and the swing arm ( 31) is transmitted to the drive wheel (3) via the second spring (7).
Is moved in the power transmission direction by the force of the drive force, the movement of the drive wheel (3) is transmitted to the braking body (5) via the rod (15) of the second interlocking means, and the braking body (5) releases the braking. It moves in the direction and moves away from the braking surface (22), and the winding drum (2) can be driven by the power from the driving wheel (3), and the drawn hose can be wound. Therefore, the hose can be prevented from crawling on the ground.

Even if the hose (H) does not crawl on the ground as described above, this spraying work can be performed easily by performing the spraying work using the self-propelled mobile carriage (A).

Further, when a friction wheel having no meshing teeth on the outer peripheral surface is used as the drive wheel (3), when the winding force of the hose (H) increases too much, the drive wheel (3) and the drive surface are (2
Since the hose (H) can be prevented from being wound up on the winding drum (2) by causing a slip between the hose (1) and the hose (H), the hose may be cut or the connection part of the hose may be damaged. Can be prevented.

Further, since the braking body (5) is urged by the force of the braking spring (16) to apply the braking force to the rotation of the winding drum (2), the rotation of the winding drum (2) is prevented. It is possible to constantly apply a predetermined braking force without stopping, so that the hose can always be pulled out with a predetermined tension force.

In the embodiment described above, the drive wheel (3), the detection body (4) and the braking body (5) are respectively provided in the swing arm (31).
(41) Although provided movably via (51), in addition to the above, each swing arm is eliminated, and a member for supporting the drive wheel (3), the detection body (4), and the braking body (5) is supported. For example, elongated holes for guiding the moving members may be provided in the part, and the movable members may be moved along the elongated holes.

Further, although the first spring (6) and the second spring (7) are also used, they may be separately provided.

The structures of the first interlocking means and the second interlocking means are not particularly limited.

Further, in the case of performing the spraying work using the movable carriage (A), the winding device may be mounted on the movable carriage (A) as shown in FIG. 3 or may be placed on the ground as shown in FIG.

(Effects of the Invention) As described above, according to the present invention, when the hose is pulled out, the power transmission by the drive wheel (3) is cut off, and a predetermined braking force is applied to the rotation of the winding drum (2). Since the hose can always be pulled out with a predetermined tension against the rotational resistance of the winding drum (2), it is possible to prevent the drawn hose from crawling on the ground, and when the spraying work direction is changed. When the pulling tension of the hose decreases,
Power is transmitted from the drive wheel (3) to the winding drum (2) to drive the winding drum (2) to automatically wind the drawn-out hose so that a predetermined tension is constantly applied to the hose. It can be applied, and thus the drawn hose can be prevented from crawling on the ground. Further, since the hose drawn out in this way can be prevented from crawling on the ground, even when the hose is drawn out using a moving carriage, it is possible that the hose is stepped on the moving carriage or caught on the moving carriage. It can be prevented.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the winding device of the present invention, and FIG.
The figures show enlarged cross-sectional views of the power transmission and braking section, FIGS. 3 and 4.
The figure is an explanatory view showing a usage state. (1) ...... Stand (2) ...... Winding drum (3) ...... Drive wheel (4) ...... Detecting body (5) ...... Braking body (6) ...... First spring (7) ...... Second Spring

Claims (1)

[Scope of utility model registration request] 1. A drive wheel which rotatably supports a winding drum (2) on a frame (1), rotates by power from a prime mover, and transmits and blocks this power to and from the winding drum (2). 3) and a braking body (5) for imparting a braking force to the rotation of the winding drum (2) are movably provided, and the drive wheel (3) is attached in the power transmission direction by the first spring (6). While being urged, the hose drawn out from the winding drum (2) is movable toward the hose withdrawing side of the winding drum (2) in a direction in which the hose is tensioned / relaxed, and the hose is engaged to tension the hose. A pull-out tension force detecting body (4) for detecting the pull-out tension force of the hose due to relaxation is provided, and the detection body (4) is biased by the second spring (7) in the direction in which the hose relaxes and the drive wheel ( 3) and the detection body (4) are increased in the pull-out tension force by the first interlocking means. When the detection body (4) is moved by the drive wheel (3), the drive wheel (3) moves in the power transmission blocking direction, and when the detection body (4) moves due to the decrease in the pulling tension force, the drive wheel (3) moves in the power transmission direction. The driving wheel (3) and the braking body (5) are interlocked so as to move, and the braking body (5) is moved by the second interlocking means when the driving wheel (3) is moved in the power transmission interruption direction. A hose take-up device characterized in that it is interlocked so as to move in the braking direction and to move the braking body (5) in the braking release direction when the drive wheel (3) moves in the power transmission direction.