JP2958659B2 - Driving device for self-propelled walking vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vehicle in which a floor cleaner is driven by a motor or an engine such as a floor polisher or a floor cleaner. The present invention relates to a driving device suitable for use in a vehicle in which a driver performs a driving operation while walking (hereinafter, simply referred to as a self-propelled walking vehicle).

[Prior Art] When driving a self-propelled walking vehicle using a grip-type accelerator (throttle grip) for traveling and a lever-type (shake-hand-type) braking device for braking, the driver walks while walking. Since all driving and braking operations of the vehicle must be performed by hand, driving may be complicated and it may not be possible to ask for quick steering or braking, especially for non-powered people such as women. There was a problem that maneuvering became more and more difficult.

Therefore, the present applicant has filed Japanese Patent Application No. 63-80036 (Japanese Patent Application Laid-Open No. 1-249531) and Japanese Utility Model Application No. 63-43077 (Japanese Unexamined Utility Model Application Publication No.
No. 45873), it is not necessary to hold the throttle grip strongly during running, the running state can be maintained by putting a light hand, and when stopping, the brake can be braked by simply tilting the handle pipe in either direction. A driving device and a braking device for a self-propelled walking vehicle that are designed so that the driving operation can be performed extremely easily have been proposed.

[Problems to be solved by the invention]

However, even in the case of the self-propelled walking vehicle proposed by the above application, when sudden braking is to be applied, it is necessary to release the hand holding the throttle grip and rotate the brake pipe with this hand, This switching operation takes a long time, and it is almost impossible to stop instantaneously. There is a risk that the vehicle cannot be stopped suddenly in an immediate place. In addition to the above-mentioned throttle grip and the handle pipe for the brake, the walking type vehicle is provided with a retreating handle for reversing the vehicle body by reversing the wheels, and in addition to the above-mentioned respective handle operations, operation of the retreat handle, The addition of a brake operation when the vehicle is moving backwards complicates the driving operation, and has a problem that affects safety.

Therefore, a technical problem of the present invention is to enable a self-propelled walking vehicle to perform forward and brake operations, and reverse and brake operations thereof with a single handle, respectively, very simply and accurately. It is an object of the present invention to provide an improved driving device.

[Means for solving the problem]

Means taken by the present invention to solve the above technical problem are as follows.

By the driver turning each of the operating handle and the reverse handle provided at the rear of the vehicle body while walking,
In a self-propelled walking vehicle configured to forward or reverse a vehicle body by rotating or reversely rotating a wheel transmitted and rotated by a motor or an engine, (1) the above-described operation handle and retreat Each of the handles is provided with a spring pulling action for constantly returning each handle to the starting position before the rotation.

(2) A brake device that constantly applies a brake to the rotation of the wheel by the force of a spring is attached to the rotating shaft for the wheel, and the distal end of the brake release wire of the brake device is connected to the operating handle and the retreat handle. Then, when each of these handles is rotated, the release wire is pulled to release the brake.

(3) The tip of the brake release wire is connected to the middle of the towing chain, and both ends of this chain are connected to the operation handle and the retraction handle, respectively. To be configured so that the wire is pulled and the brake of the brake device is released.

[Action]

 The above means works as follows.

The element of the above (1) is that, when the driver turns the operation handle for driving operation, the wheels rotate forward to advance the vehicle, and when the driver releases the operation handle, the operation force is generated by the pulling force of the spring. The steering wheel is returned to the starting position to stop the normal rotation of the wheels, that is, the forward movement of the vehicle, and when the driver turns the reverse handle, the wheels are rotated in the reverse direction to rotate the vehicle. When the vehicle moves backward and the hand is released from the reverse handle, the reverse handle is pulled back to the starting position by the traction force of the spring, and the reverse rotation of the wheels, that is, the reverse movement of the vehicle can be stopped.

In the element (2), when the operation handle or the reverse handle is rotated, the brake release wire is pulled and the brake of the brake device is released, so that the vehicle can be moved forward or backward without any trouble. At the same time, if the hands are released from the operating and retreating handles to stop the forward / reverse rotation of the wheels, the traction force on the brake release wire is released and the brake of the brake device is immediately applied. The forward or backward movement of the vehicle is stopped instantaneously, thereby improving safety during driving.

In the element (3), one brake release wire is connected to each of the operating handle and the retreat handle by a towing chain, and the turning operation of each handle is performed by the braking device via the towing chain. To the driver to release the brake quickly and accurately.

As described above, the technical problems described above can be solved by the above means, and the problems of the conventional technology can be solved.

〔Example〕

Hereinafter, preferred embodiments of the driving device for a self-propelled walking vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows the overall configuration of a floor cleaning machine according to an embodiment of the present invention, wherein 1 is a vehicle body, 2 is a traveling wheel, 3 is a main brush, 4 is a side brush, M is a motor or an engine for rotating the wheels 2 and the brushes 3 and 4 and a vacuum fan to be described later. The motor or the engine M is a driving source of the floor cleaning machine.

1a is a chassis, 3a is a partition frame attached to the bottom of the chassis 1a, 3b is a guide plate attached to the bottom of the chassis 1a so as to cover the front side of the main brush 3, and 5 is the main brush 3 A dust hopper removably mounted on the rear chassis 1a. The dust that is swept up from the floor or the road surface by the rotation of the main brush 3 is guided by the guide plate 3b to the dust hopper 5 side through the hole 5a. Here, relatively coarse dust is accumulated in the dust hopper 5 as it is, and dust having a low specific gravity is sucked by a vacuum fan, which will be described later. This is a mechanism in which the dust collection chamber 7 provided on the side is sucked into the filter chamber 7b side.

Reference numeral 6 denotes a rear wheel of the vehicle body 1, 8 denotes a formed filter mounted in the filter chamber 7a, 8V denotes a bible motor for removing dust from the filter, and a formed filter 8 which is vibrated by rotation of the motor 8V is a trapping filter. The collected dust is blown off to the dust hopper 5 to be removed.

Further, reference numeral 9 denotes a cleaning chamber of the dust collecting chamber 7, reference numeral 10 denotes an exhaust duct connected to the cleaning chamber 9, and reference numeral 11 denotes a vacuum fan attached to the tip of the exhaust duct 10.

Next, 12 and 16 are an operating handle and a retreating handle attached to the rear part of the vehicle body 1, and 14 is a mounting shaft on which the handles 12, 16 are attached to the vehicle body 1 so as to be vertically rotatable. Show.

As shown in FIGS. 1 to 5, the mounting shaft 14 is inserted through the support plates 13, 13 and 15, 15 mounted on the handles 12 and 16 to the bracket 1b provided on the vehicle body 1 side. Fixed,
Thus, the handles 12, 16 are supported so as to be vertically rotatable.

Reference numeral 20 denotes a fixed frame attached to a lower portion of the inside of the vehicle body 1. Reference numeral 17 denotes a state in which the operation handle 12 is always in the start position (stop position) shown in FIGS. 1, 2 and 4. FIG. 5 shows a traction spring stretched between the support plate 13 of the operation handle 12 and the fixed frame 20 to hold the operation handle 12.

1 to 5, reference numeral 18 denotes a forward control wire having an upper end connected to the support plate 13 of the operating handle 12, and a lower end 18 of the wire 18 is connected to the fixed frame 20. , And further, as shown in FIG.
Through the support frame 30 provided in the lower end portion 18b
Is connected to the apex portion of a substantially triangular advancing rotating plate 31 rotatably mounted on a shaft 32, and the operating handle 12 is turned forward and lowered as shown in FIG. 3 or FIG. The control wire 18 is pulled in the direction of the arrow in FIG.
A mechanism for rotating the shaft 31 in the counterclockwise direction in the drawing around the shaft 32 is provided.

In FIG. 6, 31a is an idler pulley attached to one end of the turning plate 31, and 31b is a return turning spring stretched between the other end of the turning plate 31 and the support frame 30. Show.

In FIGS. 6 and 7, MR is a drive roller attached to a rotating shaft that is always driven and rotated clockwise in the drawing by the motor or engine M described above.
R indicates guide pulleys provided above and below the same, and 35a indicates an interlocking pulley attached to a motion rotary shaft 35 installed in the vehicle body 1.

Further, reference numeral 38 denotes a drive chain extending between the drive sprocket 35b attached to the interlocking rotating shaft 35 and the interlocking sprocket 34 attached to the mounting shaft 2a of the traveling wheel 2 described above. When the vehicle is rotated in the direction indicated by the arrow in FIG. 6 (counterclockwise rotation), the driving wheels 2 are interlocked and rotated in the same direction by the drive chain 38, and the vehicle body 1 is advanced leftward in the drawing. When the vehicle is rotated in the direction of the arrow (clockwise) in FIG. 7, the traveling wheels 2 are similarly rotated clockwise by the drive chain 38, so that the vehicle body 1 moves backward in the right direction in the drawing.

Similarly, in FIGS. 6 and 7, the reference numeral 36 designates one end of the intermediate pulley 35a which extends over the interlocking pulley 35a, and the other end of which intersects the upper and lower guide pulleys GR. Roller M
The total length of the forward belt 36 formed on the left peripheral surface of the R and formed in an endless shape is slightly longer so that a slack 36a is generated in the middle as shown in FIG. When the rotation plate 31 is rotated by the pulling of the control wire 18 and the idler pulley 31a presses the forward belt 36 as shown in FIG. 6, the above-described slack 36a disappears and the entire belt is extended. The rotation of the driving roller MR is transmitted to the interlocking pulley 35a, and the traveling wheel 2 can be rotated forward.

On the other hand, in FIGS. 1 to 7, reference numeral 22 denotes a reverse control wire having an upper end connected to the support plate 15 of the retreat handle 16, and a lower end 22a of the wire 22 is fixed as described above. A vertex portion of a substantially triangular retreating rotary plate 33 which is inserted through the frame 20 and the support frame 30 and whose lower end 22b is rotatably mounted on the shaft 32 as described in detail in FIG. It is connected to. Therefore, the above-mentioned retraction handle
When the control wire 22 is pushed upward and rotated as shown in FIG. 4 and FIG.
Is a mechanism that rotates counterclockwise about the shaft 32 as shown in FIG.

In FIGS. 6 and 7, reference numeral 33a denotes an idler pulley attached to one end of the reversing rotary plate 33, and 33b extends between the other end of the rotary plate 33 and the support frame 30. The retracting spring 37 is a retraction belt that has both ends wrapped between the right peripheral surface of the drive roller MR and the interlocking pulley 35a, and is formed in an endless shape.
The overall length is slightly longer so that a slack 37a is generated in the middle as shown in FIG. 6, and the turning plate rotates by the pulling of the control wire 22 against the pulling force of the spring 33b. When the idler pulley 33a pushes the belt 37 for retraction as shown in FIG.
The rotation of the MR is transmitted to the interlocking pulley 35a, so that the traveling wheel 2 can be rotated backward.

Next, in FIGS. 1 to 5, reference numerals 19a and 19b denote brake chains whose upper ends are respectively connected to the support plate 13 of the operating handle 12 and the support plate 5 of the retreat handle 16. , A connecting bracket 19 connecting these two chains 19a, 19b.
The brake release wire 21 is connected to the brake device, and the lower end 21a of the wire 21 is connected to the brake device shown in FIG.

In FIG. 8, reference numeral 40 denotes a brake device mounted on the above-described interlocking rotating shaft 35. When the brake arm 41 is pressed and rotated to the right in the drawing, the rotating shaft 35 is rotated.
When the brake is released by releasing the tightening to the above, the brake arm 41 is rotated leftward on the drawing by its own elastic force by releasing the above-mentioned pressing and rotating, and the mechanism for tightening the rotating shaft 35 and applying the brake is achieved. It consists of

In FIG. 8, reference numeral 43 denotes a fixed frame attached to the chassis 1a.
A brake control plate 45 has a lower end portion rotatably supported on a support portion 42c of 42. A brake control plate 45 is stretched between the brake control plate 43 and one leg 42b of the fixed frame 42 to control the brake. A spring for constantly pulling the plate 43 to the left is shown. Reference numeral 42a denotes the other leg of the fixed frame 42 for inserting and supporting the lower end 21a of the brake release wire 21. Of the brake control plate 4
Connected to 3.

The brake device having the above configuration is provided with a brake control plate.
43 is pulled by the spring 45 and is always rotated to the position shown by the imaginary line in FIG. 8, so that the brake arm 41 is turned to the left and the brake is applied. When the brake release wire 21 is pulled in the direction of the arrow in FIG. 8 by the rotation of the handle 12 or the retraction handle 16, the brake control plate 43 rotates rightward in the drawing against the pulling force of the spring 45. Since the pressing side 43a presses the roller 41R of the brake arm 41 and presses and rotates to the right, the tightening of the connecting rotary shaft 35 is released and the brake is released.

2 to 5, reference numeral 13P denotes a stopper protruding from one support plate 13 of the operation handle 12, and the stopper 13P is formed on one support plate 15 of the retreat handle 16. When the vehicle body 1 is inserted into the long hole 15T and the vehicle body 1 is advanced by tilting the operation handle 12 toward the user as shown in FIG.
The stopper 13P is engaged with the upper end of the elongated hole 15T to push up and rotate the retreat handle 16 forward, that is, to prevent the retreat handle 16 from rotating forward, and as shown in FIG. When the vehicle body 1 is moved backward by pushing up, the stopper 13P at the upper end of the elongated hole 15T is also engaged so that the operation handle 12 cannot be pushed and turned forward, that is, cannot be turned forward. ing.

Since the present invention is configured as described above, even if the driving roller MR is rotated by driving the motor or the engine M, the first
As shown in FIG. 2 and FIG. 2, the operating handle 12 is pulled up by the pulling spring 17 and held upright.
When the idler pulleys 31a and 33a are in a state where the idler pulleys 31a and 33a
Since the traveling wheel 2 does not rotate and maintains the stopped state, the control plate 43 of the brake device 40 is pulled by the spring 45 and is rotated to the braking position. In FIG. 8, the wheel 2 is rotated to the left to tighten the interlocking rotating shaft 35, and the brake is applied to stop the rotation of the traveling wheel 2.

On the other hand, when the operating handle 12 is lowered as shown in FIG. 3, the forward control wire 18 and the brake release wire 21 are pulled upward, so that the idler pulley 31a is moved to the forward belt as shown in FIG. 37 to extend the wheel 2 for forward running and rotate the control plate 43 of the brake device 40 rightward as shown in FIG.
The vehicle body 1 can be made to travel forward because the brake on the rotating shaft 35 is released by pushing the 41, and further, in the case of the floor cleaning machine shown in FIG. The brush 4 rotates and the vacuum fan
Since the suction operation is also performed on the dust 11, the dust on the floor surface or the road surface can be swept into the hopper 5, and the soaring dust can be collected in the forming filter 8.

When the retreat handle 16 is pushed upward and rotated upward as shown in FIG. 4, the retreat control wire 22 is pulled, and the idler pulley 33a is moved as shown in FIG.
Since the vehicle wheel 2 is rotated backward, the brake wire 21 is also pulled and the brake state of the brake device 40 is released, so that the vehicle body 1 can be moved backward.

Further, as soon as the hand is released from the pull-down operation handle 12, the operation handle 12 is returned to the start position, that is, the stop position shown in FIGS. 1 and 2 by the traction force of the traction spring 17. Then, the extension of the forward belt 36 is released and the forward rotation of the traveling wheels 2 is stopped, and at the same time, the brake device 40 applies the brake. Therefore, the forward movement of the vehicle body 1 is automatically and instantaneously performed. Can be stopped.

In addition, the handle 16
Even when the hand is released, the retraction handle 16 is immediately returned to the starting position by the weight of the handle and the traction effect from the retraction spring 33b for returning and rotating the rotation plate 33 to the retraction control wire 22. In order to rotate, the vehicle 1 is stopped from retreating and the brake is automatically applied.

〔effect〕

Since the driving device for a self-propelled walking vehicle according to the present invention is as described above, the forward and backward movements of the vehicle body can be accurately performed only by turning the dedicated handles, respectively. To stop the reverse movement by applying the brake, simply release the hand from each of the rotated dedicated handles, the rotation of the traveling wheels can be stopped immediately, and the traveling of the vehicle body can be stopped instantaneously. Driving operation is easy, and
It is reliable and can demonstrate excellent safety, and the brake is automatically applied whenever the vehicle is stopped,
There is no need to worry about accidents caused by forgetting to apply the brake, and it is possible to demonstrate the advantage that anyone can drive easily,
It is suitable for use in various self-propelled walking vehicles such as floor cleaning machines shown in the drawings, floor polishing machines, or floor cleaning machines.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an example of a floor cleaning machine in which a self-propelled walking vehicle driving device according to the present invention is implemented, and FIGS. FIG. 5 is a perspective view illustrating the operation state of each handle portion when the vehicle is moving backward, FIG. 5 is a partial cross-sectional front view, and FIGS. 6 and 7 are diagrams illustrating the operation state of each portion during forward movement and reverse movement. FIG. 8 is a perspective view of the brake device. 1 is a vehicle body, 2 is a traveling wheel, M is a motor or an engine,
9a and 9b are brake chains, 12 is an operating handle, 16
Is a retraction handle, 17 is a traction spring, 18 is a control wire for advance, 22 is a brake release wire, 22 is a control wire for retraction, 31b and 33b are retraction springs, and 40 is a brake device.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 4-35928 (JP, U) JP-A 61-30538 (JP, U) JP-A 52-96825 (JP, U) JP-A 60-60 24627 (JP, U) Japanese Utility Model 2-148859 (JP, U) Japanese Utility Model Application Hei 2-102865 (JP, U) Japanese Utility Model Application Showa 59-133363 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) B60K 41/26

Claims (2)

(57) [Claims] An operation handle and a retraction handle provided at a rear portion of a vehicle body are respectively rotated while walking while a driver walks, so that a rotation direction of a wheel transmitted and rotated by a motor or an engine is rotated forward or backward. Then, in a self-propelled walking vehicle configured to move the vehicle body forward or backward, each of the operating handle and the retreating handle has a spring that always pulls back each handle to a starting position before rotation. While providing traction, a brake device is attached to the rotating shaft for the wheel to constantly apply a brake to the rotation of the wheel with the force of a spring,
The tip of the brake release wire of this brake device is
A self-propelled vehicle, wherein the self-propelled vehicle is configured to be connected to the operating handle and the reversing handle so that when each of these handles is rotated, the release wire is pulled to release the brake. For driving equipment. 2. An end of a brake release wire is connected to an intermediate portion of a towing chain, and both ends of the chain are connected to an operation handle and a retreat handle, respectively. The self-propelled walking vehicle operating device according to claim 1, wherein the release wire is pulled to release the brake of the brake device.