JPH0550432B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to a power spreader, a gas or electric welding machine, etc., in which linear bodies such as hoses and electric cords are wound around a winding drum as they travel. This invention relates to a winder for a linear body that can be wound or unwound.

[Prior art] Conventionally, as this type of winding machine, the
What is seen in the 20071 publication is that the winding drum is supported above the wheels and is in a high position, and
The winding drum has a structure in which a drive roller, which rotates by receiving rotational power from a running wheel, presses against the winding drum and is driven to rotate.

[Problems to be solved by the invention] With such a structure, the center of gravity of the machine body, which is mainly the weight of the winding drum, becomes high, which makes the machine unstable and poses a risk of tipping over. Maneuverability also deteriorates, and since the drive roller and winding drum are driven via the wound hose, the drive rollers and winding drum are driven as the hose is wound in line from one end of the drum to the other end. The contact area between the roller and the hose changes, the drive becomes unstable and does not work reliably, and there are problems such as the traveling distance of the running wheel and the hose winding dimension of the drum do not match, and the hose is damaged. are doing.

[Means for Solving the Problems] The present invention solves such problems, makes it possible to stabilize the machine body, and also to reliably wind the linear body from the winding drum in synchronization with the running wheels. It is designed to be able to be picked up and fed out, and is therefore located between the left and right running wheels, and a linear body winding drum with a smaller diameter than the running wheels is mounted coaxially with the running wheels. One running wheel is interlocked and connected to the winding drum 9 via a rotation tuning device, and the rotation tuning device increases the rotation speed of the one running wheel 2 and transmits the rotation to the winding drum 9. It includes a speed transmission mechanism, a sliding transmission mechanism that interposes the speed increasing transmission mechanism between the winding drums 9, and a one-way transmission mechanism that disables transmission from the running wheels 2 when the linear body is fed out. Between one of the running wheels and the winding drum, the length of the linear body that is wound or unwound as the winding drum rotates can be synchronized with the distance traveled as the running wheel rotates. It was constructed as follows.

[Function] Therefore, when winding or unwinding a linear body as it travels, the winding drum is set between the running wheels with a diameter smaller than that of the running wheels, and the winding drum is coaxially connected to the running wheels. Even if the effective diameter of the take-up drum changes depending on the length of the linear body wound on the take-up drum, the rotation of one running wheel will be caused by the speed-increasing transmission mechanism and the sliding transmission. The information is transmitted to the winding drum through a rotation synchronization device consisting of a mechanism and a one-way transmission mechanism, so that it is wound up or unwound between one running wheel and the winding drum as the winding drum rotates. The length of the linear body is synchronized with the distance traveled by the rotation of the running wheel, and the linear body of a length commensurate with the distance traveled can be wound onto the winding drum or fed out.

[Example] Next, the embodiment shown in the drawings will be described.

FIG. 2 shows a side view of the entire winding machine. The front end is connected to both ends of the horizontal frame 1a, and a drive unit is located between the rear ends of both frames 1, which are parallel and extend horizontally backward. The drive unit A is mounted on a support seat 2 between the rear ends of both frames 1.
0 is fixed, and the drive case 21 connected below the engine 6 is rotatable about the longitudinal axis 0 and is fitted into the support seat 20, and the base of the wide loop-shaped handle 7 The handle boss portion to which is fixed is fitted into the drive case 21, and fixed or rotatably connected to the case 21 with a knock pin 22, and the axle 8a is attached to both sides of the lower end of the drive case 21. The engine 6, the drive case 21, and the drive wheels 8 are mounted on the handlebar 7 with the engine 6, the drive case 21, and the drive wheels 8 centered around the axis 0. Steering operation can be performed by rotating the handle, and by engaging and disengaging the dowel pin 22 with a plurality of pin holes provided in the handle boss, the handle 7 can be rotated as shown by the imaginary lines in FIGS. 2 and 3. , these are installed and configured so that they can be rotated 180 degrees.

Support pieces 23a and 23b are respectively erected above the intermediate portions of both frames 1 in the longitudinal direction, and as shown in FIG. The other support piece 23 is rotatably supported via a bearing 23b and a boss 23c, and as shown in FIG.
The support shaft 4 is attached to the metal 24 fixed to the upper part of b.
The outer ends of the pipe-shaped support shafts 5 coaxial with the support shafts 4 are loosely fitted, and the bosses 2a and 3a of the large-diameter left and right running wheels 2 and 3, which approach the inside of both frames 1, are connected to the support shafts 4. , 5 with bearings 25 interposed therebetween.

Between the two running wheels 2 and 3, a boss 26 fixed at the center of one side plate 9a of the winding drum 9 having a smaller diameter is installed with a bearing 27 interposed at the inner end of the support shaft 4. At the same time, the other side plate 9b
The center boss 28 of the support shaft 5 is fitted and fixed to the inner end of the support shaft 5, and one end side of the hose B, which is a string-like body, extends inward from the winding drum 9 through the opening 29, and the support shaft 5, and through a reversible joint 30 connected to the outer end of the support shaft 5, it communicates with a spray nozzle body (not shown) that can be detachably attached to the handle 7. It can be extended and configured as follows.

The running wheel 2 and the winding drum 9 are connected via a rotational synchronization device and an interlock release device, each of which includes a speed-up transmission mechanism, a one-way transmission mechanism, and a sliding transmission mechanism.

The side plate 2b of the running wheel 2 and the winding drum 9
A friction plate 4a is integrally fixed to the intermediate part of the support shaft 4 between the bosses 2a and 26 surrounded by one side plate 9a, and a friction plate 14 that can be pressed against the friction plate 4a is slid in the axial direction. The friction plate 14 is movably fitted onto the support shaft 4, and three engagement holes 14a are formed at equal intervals in the circumferential direction on the outer periphery of the friction plate 14. A pin 41 protruding from one side plate 9a is slidably inserted into the engagement hole 14a and loosely rotated integrally in the circumferential direction to constitute a sliding transmission mechanism and slidably into the support shaft 4. A support pin 33 that fits into both long grooves 32 on the outer periphery of the support shaft 4 is inserted into the fitted piece 31, and there is a compression between the seat plate 34 supported by the support pin 33 and the friction plate 14. A spring 35 is interposed.

A rod 36 connected to the piece 31 extends to the outer end of the support shaft 4, and a support shaft 37 is fitted to the outer end of the rod 36 and locked by a locking body 38, thereby forming a cam having a lever 39a. 39 is installed so as to be able to contact the outer end surface of the support shaft 4 and rotate around the support shaft 37, thereby configuring an interlock release device.

A side plate 2b of the running wheel 2 that forms the outer periphery of the boss 2a.
The drive sprocket 2 is located on the opposite end.
A pair of sprockets 17 are fixedly attached to a support shaft 40 provided on a support plate 40a that protrudes upward from the frame 1 in the vicinity of the support piece 23a.
An intermediate sprocket 17 consisting of a and 17b is rotatably loosely supported, and a driven sprocket 15 is supported on the support shaft 4 via a one-way clutch 13 and a needle bearing 13a. Two chains 16 are wound between the intermediate and driven sprockets 2c, 17, and 15 to constitute a speed-increasing transmission mechanism and a one-way transmission mechanism to increase speed.

Further, a rear sprocket 1 is provided on the outer periphery of the portion of the support shaft 5 that is outside the boss 3a of the running wheel 3.
Bearings 4 in support frames 42a and 42b, which are connected to the front ends of both frames 1, are fitted and fixed to each other.
3a, 43b are lower than the support shafts 4, 5,
Furthermore, both ends of a transverse napier shaft 12 lower than the frame 1 are mounted on each other, and the napier shaft 12
Reel-shaped guide members 11 that clamp and guide the hose B are attached to both support shafts 44a that are vertically disposed below the sliding body 44 and reciprocate in the axial direction.
A guide body 45 protruding above the sliding body 44 is fitted into a lateral guide groove 46 formed at the rear of the horizontal frame 1a, and is fitted into the right end of the napier shaft 12. A chain 18 is attached to the front sprocket 47 and the rear sprocket 10 which are fixed together.
A pin 49 is inserted in the diametrical direction inside the tube metal 48 which is fitted and fixed to the right end of the napier shaft 12, and the tip of the crank type manual handle 19 can be freely attached to and detached from the tube metal 48. The pin 49 is fitted into the pin 49, and an engagement groove 50 into which the pin 49 can be fitted is formed at the tip thereof.

Therefore, for example, when winding up the hose B on the ground, which is extended from a power sprayer (not shown) and connected to a winding machine far away, onto the winding drum 9 during a spraying operation, Figures 2 and 3
As shown in the figure, both drive wheels 8 are set to be forward of the axis 0, and the longer diameter side of the cam 39 is in contact with the outer end surface of the support shaft 4 in the direction shown by the imaginary line in FIG. When the cam 39 is rotated by the lever 39a and the friction plate 14 is brought into strong pressure contact with the friction plate 4a through the compression spring 35 by the pulling action of the rod 36, both drive wheels 8 are driven, and the aircraft moves in the direction indicated by the arrow. move forward in the direction

As the aircraft moves forward, the running wheels 2 and 3 that are in contact with the ground rotate, and in particular, the rotation of the running wheel 2 is caused by the drive and
The increased speed is transmitted to the driven sprocket 15 via the intermediate sprockets 2c, 17 and the chain 16, and this increased rotation is transmitted to the support shaft 4 via the one-way clutch 13, and from the support shaft 4 to the friction plates 4a, 14. ,
It is transmitted to the winding drum 9 via the pin 41. With the rear sprocket 10 of the support shaft 5 rotating at the same time together with the winding drum 9 rotating the napier shaft 12 via the chain 18, both guide members 11 are reciprocated laterally, so that the hose on the ground B is guided by both guide members 11 and wound up on the winding drum 9 in an orderly manner.

In that case, the distance traveled by one rotation of the running wheels 2 and 3 and the winding dimension of the hose B by one rotation of the winding drum 9 will be longer or shorter depending on their diameters, and the distance traveled by the winding drum 9 will vary. The effective diameter changes depending on the length of the hose B, and the winding dimension of the hose B by one rotation of the drum 9 varies. Therefore, the speed of the rotation of the running wheel 2 is increased by a speed-increasing transmission mechanism and transmitted to the winding drum 9, and the winding drum 9 is rotated at an increased speed with respect to the travel distance of the running wheel 2, thereby initial winding of the hose B is performed. In addition to approximately matching the take-up dimensions, the take-up dimensions of the hose B on the take-up drum 9 gradually increase from the beginning to the end, and the hose B extended above the ground is stretched in accordance with the gradually increased take-up dimensions. ,
This tensile force acts on the friction plate 14 as resistance, and the rotation of the support shaft 4 is corrected by sliding between the friction plates 14 and 4a.

In this way, the rotational speed of the winding drum 9 is reduced in accordance with the resistance, and the hose B can be wound to a length corresponding to the travel distance without forcibly dragging the hose B while winding it up and causing damage. will be held.

Conversely, when the hose B is fed out and placed on the ground, the handle 7 remains in the same position and the other drive unit A is rotated 180 degrees around the axis 0, as shown in Figures 2 and 3. As shown by the imaginary lines in Fig. 3, both drive wheels 8 are set so as to be deviated rearward from the axis 0, and when the machine is moved backward in the direction of the reverse arrow A, the running wheels 2 run in the reverse direction and the winding The drum 9 can rotate on its own axis due to the resistance of the hose B placed on the ground and can feed out the hose B.

At this time, since the accelerated reverse rotation of the sprocket 15 has a faster rotational speed than the rotation of the winding drum 9, that is, the support shaft 4, the one-way clutch 13, which is a one-way transmission mechanism, , the accelerated reverse rotation of the sprocket 15 is not transmitted to the support shaft 4, and the support shaft 4 freely rotates reversely in the reverse rotation direction within a range slower than the reverse rotation of the sprocket 15,
That is, the winding drum 9 can rotate.

As described above, the rotation of the running wheel 2 and the rotation of the winding drum 9 are synchronized by a rotation synchronization device consisting of a speed-up transmission mechanism, a one-way transmission mechanism, and a sliding transmission mechanism.

In this way, the winding drum 9 is connected to both running wheels 2,
3, the center of gravity of the aircraft can be lowered and the aircraft can be maneuvered well to prevent it from tipping over.Also, since the guide member 11 is located at a low position in front of the aircraft, it can be positioned at a low position. The guide member 11 allows the hose B to be well guided and wound up in an orderly manner.

In addition, when winding up the hose B without moving the machine, use the interlock release device to move the lever 39a so that the short diameter side of the cam 39 contacts the outer end surface of the support shaft 4, as shown by the solid line in FIG. The cam 39 is rotated by the compression spring 35 against the friction plate 14.
By weakening the elastic force of the winding drum 9, the winding drum 9 can be set to rotate freely in the forward and reverse directions independently of the running wheel 2. In that state, the manual handle 19
At the same time, the tip of the engagement groove 5 is fitted into the cylinder metal 48.
0 into the pin 49 and rotate the napier shaft 12 with the manual handle 19, both guide members 11
Since the winding drum 9 can be rotated while reciprocating in the lateral direction, the hose B can be manually wound in an orderly manner while the machine is stopped. Incidentally, with the same structure, electric cords and other string-like bodies can be similarly wound around the winding drum 9 and let out.

Further, the manual handle 19 may be powered by a motor that rotates at a low speed.

[Effects of the Invention] As described above, in the present invention, since both running wheels 2 and 3 and the take-up drum 9 are made coaxial, the center of gravity of the machine body can be lowered as much as possible, which prevents the machine from overturning. Stable driving is possible without any problems. In addition, the traveling distance due to one rotation of the running wheels 2 and 3 and the linear body B due to one rotation of the winding drum 9
There are long and short winding lengths due to their diameters, and the effective diameter of the linear body wound around the winding drum 9 gradually changes during winding or unwinding. A speed-up transmission mechanism that transmits the rotation to the winding drum 9 at a speed higher than the rotation speed of the linear body B, and a sliding transmission mechanism interposed between the speed-up transmission mechanism and the winding drum 9, The necessary load is always applied during winding, and when an excessive load is applied, the sliding transmission mechanism prevents the winding from being forced, so that the linear body B can be moved from behind while winding while traveling. The linear body B is wound on the winding drum 9 with a length commensurate with the running distance without being pulled and dragged, and the transmission from the running wheel 2 is disabled when the linear body B is unwound in one direction. Due to the provision of a transmission mechanism,
Linear body B with a length commensurate with the distance traveled while traveling
The winding drum 9 can be fed out from the winding drum 9, and there is no need for a new linear body B to be drawn out from the winding drum 9 while dragging the already fed and laid linear body B. Since the winding or unwinding length of the linear body 9 is synchronized with the travel distance accompanying the rotation of one of the running wheels 2, the linear body B can be reliably wound onto the winding drum 9. Alternatively, it has the feature that it can be suitably used as a winder that can be fed out and has good operability.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the main parts of the embodiment, FIG. 2 is a side view of the entire winding machine, and FIG. 3 is a plan view thereof.
Figure 4 is a vertical cross-sectional view of a part of Figure 3, and Figure 5 is a longitudinal cross-sectional view of a portion of Figure 3.
6 is a side sectional view of a portion of FIG. 5, FIG. 7 is a right side view of a portion of FIG. 6, and FIG. 8 is a manual handle. 2, 3... Running wheel, 4, 5... Support shaft, 9...
Winding drum, 13...One-way clutch, 4
a, 14...Friction plate.

Claims (1)

[Claims] 1. A linear body winding drum 9, located between the left and right running wheels 2, 3 and having a diameter smaller than that of the running wheels 2, 3, is mounted coaxially with the running wheels 2, 3. A drum 9 takes up the running wheel 2 via a rotation synchronization device.
The rotation synchronization device includes a speed-increasing transmission mechanism that increases the rotation speed of one of the running wheels 2 and transmits the rotation to the winding drum 9; It is equipped with a sliding transmission mechanism interposed between the two, and a one-way transmission mechanism that disables transmission from the running wheel 2 when the linear object is unwound. A winding machine for a linear body, characterized in that the length of the linear body taken up or fed out can be synchronized with the traveling distance accompanying the rotation of a running wheel 2.