JP2007030554A - Self-propelled carriage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self-propelled carriage in which a set power spray can be easily attached/detached and carried. <P>SOLUTION: A self-propelled carriage is equipped with a vehicle body frame 31 which is formed in a cylinder shape and which includes a mounting part on the upper surface, a wheel 32 for travelling equipped with front wheels 32F, 32F and rear wheels 32R, 32R arranged in a lower part of the vehicle body frame 31, a motor 33 for driving the front wheels 32F, 32F accommodated in the body frame 31 and a travelling selector switch 35 arranged on one side of the periphery of the body frame 31. A foldable handle 40 is provided to front/rear one side of the body frame 31. The travelling selector switch 35 is arranged in the handle 40. Parking brake devices 43, 43 are placed in the body frame 31 and braked by interlocking with the folding of the handle 40. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a self-propelled carriage, and more particularly, to a technology of a self-propelled carriage for conveying a set moving jet.

From the prior art, there is a self-propelled set moving jet that can travel by driving a wheel or the like by using a part of the driving force of an engine of a power sprayer (see Patent Document 1). This self-propelled set moving jet has wheels on the left and right of the front and rear of the lower part of the frame, and is configured to drive the front wheels via a chain etc. by the driving force of the engine. A power sprayer was placed and fixed at the front, and a hose reel was placed at the rear.
JP 2004-359365 A

  However, in the conventional configuration, the set moving jet, the hose reel, and the traveling frame are integrally configured. Therefore, when only the set moving jet is used or the hose is changed and sprayed. When working, removal and replacement are cumbersome and storage space is also increased. In addition, there is a problem that noise is generated when the driving force for traveling is obtained by the engine. Furthermore, when switching between forward and backward movements or shifting gears, a transmission case or the like that houses the transmission is required, which increases the body size, weight, and costs.

  In view of the situation as described above, the present invention provides a self-propelled carriage that can be easily attached and detached and can be easily transported.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in claim 1, a vehicle body frame having a box-like shape and having a mounting portion on an upper surface thereof, a traveling wheel disposed at a lower portion of the vehicle body frame, driving means accommodated in the vehicle body frame, and the vehicle body frame Operating means disposed on one side of the periphery.

  According to a second aspect of the present invention, a foldable handle is provided on the front and rear side of the body frame, and the operating means is disposed on the handle.

  According to a third aspect of the present invention, a parking brake device is disposed on the vehicle body frame.

  According to a fourth aspect of the present invention, the parking brake device is configured to brake in conjunction with folding of the handle.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect, it is possible to easily move the luggage by placing the load on the placing portion of the body frame. By adjusting the mounting portion to the shape of the frame (mounting plate) of the set moving jet, it can be used as a set moving jet dedicated carriage, and the set moving jet can be easily transported. In addition, it can be easily transported by being placed on other packages. And by making a drive means into a motor, it becomes possible to move quietly, without generating a noise. When moving during operation of the power sprayer, since it is driven separately from the engine of the power sprayer, there is no load fluctuation and scattering unevenness can be prevented. Furthermore, it is possible to easily perform forward / backward / stop operation by operating means such as a switch.

  According to the second aspect of the present invention, the traveling operation can be easily performed during traveling by causing the handle to protrude. Further, by folding the handle, it is possible to reduce the occupied area, the storage space is reduced during storage, and the handle does not get in the way during spraying work. Since the operating means is arranged on the handle, it is possible to easily operate while holding the handle.

  According to the third aspect of the present invention, it is possible to prevent the self-propelled carriage from traveling erroneously by actuating the parking brake at the time of spraying work or storing.

  According to the fourth aspect of the present invention, the parking brake is automatically operated by folding the handle when the traveling is stopped, and it becomes possible to prevent forgetting to apply the brake. Also, the parking brake can be easily operated.

Next, embodiments of the invention will be described.
FIG. 1 is a left side view showing the overall configuration of a self-propelled carriage and a set moving jet according to an embodiment of the present invention, and FIG. 2 shows a state where the set moving jet and the self-propelled carriage are separated from each other. FIG. 3 is a perspective view of a front fixing portion of a fixing means for fixing an object such as a set moving jet to a vehicle body frame, FIG. 4 is a perspective view of the rear fixing portion, and FIG. 5 is a fixing supporting a handle. It is a side view of a member and a parking brake device.
An overall configuration of the set moving jet 2 and the self-propelled carriage 3 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. In the following description, the direction of the arrow A in FIGS. 1 and 2 is “forward” for convenience.

  In the set moving jet 2, a power sprayer 21 and an engine 22 are mounted and fixed on a frame 24. The power sprayer 21 and the engine 22 are connected by a power transmission mechanism, and the power sprayer 21 can be driven by the driving force of the engine 22.

  The self-propelled carriage 3 is arranged on the front and rear sides of the lower part of the body frame 31, on the front wheels 32 F and 32 F, on the rear wheels 32 R and 32 R, inside the body frame 31, on the motor 33, battery 34, and on the front and rear sides of the body frame 31. The handle 40 is provided.

  In the present embodiment, the set moving jet 2 has a configuration in which the power sprayer 21 is placed on the front part of the frame 24 and the engine 22 is placed on the rear part, and the power transmission mechanism is arranged on the left and right sides. A configuration in which the arrangement is reversed is also possible. In addition, a configuration in which the power sprayer 21 is disposed on one side of the frame 24 on the left and right sides, the engine 22 is disposed on the other side of the left and right sides, and a power transmission mechanism is disposed in the center between the power sprayer 21 and the engine 22 is also possible. The configuration is not limited.

  The power sprayer 21 houses a plunger in a crankcase, and an intake valve and a discharge valve are arranged on the head side of the plunger. The chemical solution is sucked from the suction port via a hose and the like, and the chemical solution can be pumped from the discharge valve to the nozzle via the pressure control valve, the pressure accumulation chamber, and the like, and the hose connected to the discharge port. By the pressure regulating valve, the regulated residual water is returned to the chemical liquid tank via the residual water hose.

The engine 22 is a device for driving the power sprayer 21 and has a crankshaft disposed in the left-right direction. One end of the crankshaft is used as an output shaft, and an engine-side pulley 25 constituting a power transmission mechanism is fixed. In the present embodiment, the power transmission mechanism is a belt type using the engine side pulley 25, the power sprayer side pulley 26, the belt 27, etc., but it can also be a chain type or a gear type. The configuration is not limited.
Thus, the driving force of the engine 22 drives the plunger from the output shaft via the engine side pulley 25, the belt 27, and the power sprayer side pulley 26. When the plunger is driven, the chemical solution is pumped and can be sprayed from a nozzle attached to the tip of the hose.

  The frame 24 mounts the power sprayer 21 and the engine 22 in the front and rear center. In order to fix the power sprayer 21 and the engine 22 at predetermined positions, a mounting plate 23 made of a metal plate is provided, and a handle protrudes obliquely upward from both the front and rear sides of the mounting plate 23.

Next, the self-propelled carriage 3 will be described.
The self-propelled carriage 3 according to the present invention is a carriage for placing and moving and moving the set moving jet 2 mainly. The self-propelled carriage 3 includes a vehicle body frame 31, a traveling wheel 32, a motor 33 serving as a driving unit, a battery 34 for supplying power, a traveling changeover switch 35 serving as an operating unit, an operation handle 40, Parking brake devices 43 and 43 serving as parking lock means.

  The vehicle body frame 31 forms the structure of the self-propelled carriage 3 so that the set moving jet 2 can be mainly placed thereon, but other luggage and the like can also be placed thereon. That is, as shown in FIGS. 1 and 2, the vehicle body frame 31 is formed in a substantially box shape, and a mounting portion is formed on the upper surface, a support portion for the traveling wheel 32 is formed on both the front and rear sides of the lower portion, and a housing portion for the driving device is formed in the center. is doing. It is desirable that the placement portion has a shape that matches the shape of the bottom of the placement object. In this embodiment, the placement portion for the set moving jet 2 is formed, and has a rectangular shape that is slightly larger than the placement plate 23. It is composed. Before and after the vehicle body frame 31, a fixing means 39 for fixing a mounted object such as the set moving jet 2 is provided so as to be able to fix a thing having a plate-like base. In addition, although the mounting object of a present Example is the set moving jet 2, it can also comprise a mounting part for exclusive use, such as a generator and a pump, by changing the shape of a mounting part.

  The fixing means 39 includes front fixing portions 39a and 39a provided on both sides of the front portion of the vehicle body frame 31, and rear fixing portions 39b and 39b provided on both sides of the rear portion. Since the front fixing portions 39a and 39a have the same configuration on both sides, one front fixing portion 39a will be described below, and description of the other front fixing portion 39a will be omitted. For the same reason as for the rear fixing portions 39b and 39b, one rear fixing portion 39b will be described, and the description of the other rear fixing portion 39b will be omitted. As shown in FIG. 3, the front fixing portion 39 a includes a fixing plate 51 and fixing bolts 52. The fixing plate 51 is configured in an L shape when viewed from the side, and a long hole 51a is opened in the vertical direction at the center of the vertical surface so that the fixing bolt 52 can be inserted. The horizontal plate portion of the fixed plate 51 is locked to the base of the front end of the mounted object, and the fixed bolt 52 is screwed to the upper front portion of the vehicle body frame 31 in a state of matching the height, thereby fixing the fixed plate 51. It is configured to be fixed. As shown in FIG. 4, the rear fixing portion 39 b includes a fixing plate 53, a fixing bolt 54, a wing nut 55, and a washer 56. The fixing plate 53 is configured in a crank shape in a side view, and a long hole 53a is opened in the front-rear direction in the sewage flat surface portion, and a fixing bolt 54 is inserted to be screwed and fixed to the rear upper surface of the vehicle body frame 31. The fixing bolt 54 is formed by screwing a wing nut 55, inserting a washer 56, adjusting the position of the front portion of the fixing plate 53 on the rear portion of the mounted object, and tightening the wing nut 55. The mounting object is configured to be fixed. The configuration and mounting position of the front fixing portion 39a and the rear fixing portion 39b are not limited, and the front fixing portion 39a can be configured by a protrusion, a hook, or the like, and the rear fixing portion 39b is a bolt It is also possible to fix directly by such as. In this way, the placed object such as the set moving jet 2 is detachably fixed to the vehicle body frame 31 by the fixing means 39.

  The traveling wheel 32 is a device for traveling the self-propelled carriage 3, and includes front wheels 32F and 32F and rear wheels 32R and 32R. In the running wheel 32 of this embodiment, the front wheels 32F and 32F are drive wheels, and the rear wheels 32R and 32R are rotatable. The rear wheels 32R and 32R may be caster wheels or the like in order to facilitate turning and steering. Further, the number and form of the traveling wheels 32 are not particularly limited, and a crawler type may be used instead of the traveling wheels 32.

  The motor 33 is a device for driving the traveling wheel 32 and is a direct current motor. A motor-side sprocket 36, which is a power transmission mechanism, is fixed to the output shaft of the motor 33, and drives the front wheels 32F and 32F via the chain 38 and the front-wheel side sprocket 37.

  The battery 34 is means for supplying electric power to the motor 33, and is connected to the motor 33 via the travel changeover switch 35. By arranging the battery 34 and the motor 33 at a low position inside the vehicle body frame 31, the center of gravity is lowered and stable running is possible.

  The travel changeover switch 35 is constituted by a toggle switch or the like, and the forward, reverse and stop operations of the self-propelled carriage 3 can be performed by switching forward, reverse and stop of the motor 33. The travel changeover switch 35 is attached to the upper part of the handle 40 so that it can be operated at hand. It is also possible to employ a configuration in which the upper portion of the handle 40 is used as an operation portion, and a speed adjusting variable resistor or the like is provided in the operation portion.

  The handle 40 includes a travel changeover switch 35, protrudes rearward and upward from the rear portion of the vehicle body frame 31, and is configured to be foldable forward. That is, the handle 40 is configured in an inverted U shape when viewed from the rear, and the upper closing side is used as an operating portion, and the opening base is supported by fixing members 41 and 41 provided on both sides of the rear portion of the vehicle body frame 31. As shown in FIG. 5, each of the fixing members 41 and 41 has a single plate or a plate configured in a U-shape in plan view standing on both sides of the rear portion of the vehicle body frame 31, and the base portion (lower portion) of the handle 40 is pivoted. It is pivotally supported by support pins 60, 60, etc. The handle 40 can be fixed to the “moving position” and the “folding position” with respect to the fixing members 41 and 41 by lock pins 61 and 61. In addition, since the structure which makes the handle | steering-wheel 40 foldable is the same structure on both sides, below, one structure is demonstrated and description is abbreviate | omitted about the other structure.

  That is, the pin hole 41a and the pin hole 41b are opened in the fixing member 41 on the same radius with the pivot pin 60 as the center, and the pin hole is also opened in the handle 40 at a position separated by the same radius. In the case of movement, the handle 40 is erected, and the pin hole of the handle 40 and the pin hole 41a of the fixing member 41 are aligned and fixed with the lock pin 61, thereby fixing to the “movement position”. Can do. When spraying, the lock pin 61 is pulled out, the handle 40 is tilted forward about the pivot pin 60, and the pin hole of the handle 40 and the pin hole 41 b of the fixing member 41 are aligned. By inserting the lock pin 61, it can be fixed at the “folding position”. The means and configuration for fixing the handle 40 to the vehicle body frame 31 are not limited, and screws, hooks, and the like may be used. Moreover, it is also possible to adopt a configuration in which the lock pin 61 is automatically locked when the lock pin 61 is always urged to the lock side, released, and the handle is rotated to the other side.

The self-propelled carriage 3 includes parking brake devices 43 and 43. Since the parking brake devices 43 and 43 have the same configuration on both sides, only one parking brake device 43 will be described below, and description of the other parking brake device 43 will be omitted. As shown in FIG. 5, the parking brake device 43 includes a pressing pin 43a, a spring 43b, a brake pad 43c, a brake shoe 43d, and the like. The pressing pin 43a is disposed on the body frame 31 in front of the fixing member 41 so as to be slidable in the vertical direction. The pressing pin 43a externally fits the spring 43b and urges the upper end of the pressing pin 43a to protrude upward from the body frame 31. A brake pad 43c is fixed to the lower end of the pressing pin 43a. On the other hand, a brake shoe 43d is fixed on the axle 32a of the rear wheels 32R and 32R in accordance with the position of the brake pad 43c.
With this configuration, when spraying, when the handle 40 is tilted forward and locked by the lock pin 61, the handle 40 comes into contact with the upper end of the pressing pin 43a and the pressing pin 43a is moved downward. The handle 40 is locked in a state where the brake pad 43c and the brake shoe 43d are pressed. For this reason, the rear wheels 32R and 32R cannot rotate, and the parking brake device 43 is in a braking state. In the case of movement, when the handle 40 is lifted to the “movement position”, the pressing pin 43a is lifted by the urging force of the spring 43b, and the brake pad 43c and the brake shoe 43d do not come into contact with each other. Is released and becomes rotatable. In addition, the structure of the parking brake apparatus 43 is not limited, It is also possible to set it as the structure which locks the axle shaft 32a and the press pin 43a with a nail | claw, a penetration pin, etc. FIG.

As described above, the self-propelled carriage 3 of this embodiment is
A vehicle body frame 31 having a box-like shape and a mounting portion on the upper surface, a traveling wheel 32 disposed at a lower portion of the vehicle body frame 31, a motor 33 housed in the vehicle body frame 31, and a one side around the vehicle body frame 31 The travel changeover switch 35 is provided.
With such a configuration, it is possible to easily move the luggage on the placing portion of the vehicle body frame 31. By matching the mounting portion with the shape of the mounting plate 23 of the set moving jet 2, it can be used as a set moving jet dedicated carriage, and the set moving jet 2 can be easily conveyed. In addition, it can be easily transported by being placed on other packages. The motor 33 can move quietly without generating noise. When moving when the power sprayer 21 is operated, since it is driven separately from the engine 22, there is no load fluctuation and scattering unevenness can be prevented. Further, the travel changeover switch 35 makes it possible to easily perform forward / reverse / stop operations.
Further, a foldable handle 40 is provided on one side of the vehicle body frame 31 on the front and rear sides, and a travel changeover switch 35 is disposed on the handle 40.
With such a configuration, the traveling operation can be easily performed during traveling by projecting the handle 40. Further, by folding the handle 40, the occupation area can be reduced, the storage space is reduced during storage, and the handle 40 does not get in the way during spraying work. Since the travel changeover switch 35 is disposed on the handle 40, the handle 40 can be easily operated while holding the handle 40.
In addition, parking brake devices 43 and 43 are arranged on the vehicle body frame 31.
By configuring in this way, it is possible to prevent the self-propelled carriage 3 from traveling accidentally by operating the parking brake devices 43 and 43 during spraying work and storage.
Further, the parking brake devices 43 and 43 are configured to brake in conjunction with the folding of the handle 40.
With this configuration, the parking brake devices 43 and 43 are automatically operated by folding the handle 40 when traveling is stopped, and it becomes possible to prevent forgetting to apply the brake. In addition, braking of the parking brake devices 43 and 43 can be easily operated.

The left view which showed the whole structure of the self-propelled trolley | bogie and set dynamic spray which concern on one Example of this invention. The left view which showed the state which separated the set moving jet and the self-propelled carriage similarly. The perspective view of the front fixing | fixed part of the fixing means which fixes mounting objects, such as a set moving jet, to a vehicle body frame. The perspective view of a back fixed part similarly. The side view of the fixing member and parking brake device which support a handle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Self-propelled trolley | bogie 31 Body frame 32 Wheel for driving 33 Motor 35 Travel switch 40 Handle 43 Parking brake device

Claims (4)

A vehicle body frame that has a box-like shape and has a mounting portion on the upper surface, a traveling wheel that is disposed at a lower portion of the vehicle body frame, a driving means that is accommodated in the vehicle body frame, and a vehicle frame disposed on one side of the vehicle body frame. Operation means;
A self-propelled trolley equipped with   The self-propelled carriage according to claim 1, wherein a foldable handle is provided on one side of the vehicle body frame in the front-rear direction, and the operating means is disposed on the handle.   The self-propelled carriage according to claim 1 or 2, wherein a parking brake device is disposed on the vehicle body frame. The self-propelled carriage according to claim 3, wherein the parking brake device is configured to brake in conjunction with folding of the handle.

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