KR101434147B1 - Moving vehicle used for working - Google Patents

Abstract

A work mobile truck is disclosed. According to an aspect of the present invention, there is provided a work vehicle including a body including an upper body and a lower body; Front and rear drive wheels mounted on the bottom of the body; And a handle for controlling a traveling direction of the body, wherein the handle includes a first handle and a second handle operatively associated with each other in any one of the operating directions.

Description

{MOVING VEHICLE USED FOR WORKING}

The present invention relates to a work vehicle.

Moving lorries used in industrial fields such as ships, wind turbines, and aircraft are widely used for welding, marking, machining, painting, and piping. Such a moving bogie for work includes, for example, a moving means equipped with a driving wheel so as to be able to move to a working position, a workbench for allowing an operator to carry out work by loading necessary tools and materials at the working position, And elevating means for raising and lowering the work table so that the work table can be operated.

Japanese Laid-Open Patent Publication No. 1995-0011791 (1995.05.16) and Japanese Laid-Open Patent Application No. 2004-307156 (2004.04.04) disclose technologies for work (moving) bogies so that workers can conveniently work in the field There is a bar.

Patent Document 1: Japanese Laid-Open Patent Application No. 1995-0011791 (published May 16, 1995) Patent Document 2: Japanese Laid-Open Patent Application No. 2004-307156 (published on April 11, 2004)

The embodiments of the present invention are intended to provide a working truck which has a first handle and a second handle that operate in conjunction with each other in accordance with any one of the operation directions, thereby improving the efficiency of various operations.

It is also intended to provide a work truck that can quickly and smoothly move on a steep curve road through a drive wheel steered at a steering angle greater than the steering angle of the steering wheel.

According to an aspect of the present invention, there is provided a portable terminal comprising: a body including an upper body and a lower body; Front and rear drive wheels mounted on a lower portion of the body; And a handle for controlling a traveling direction of the body, wherein the handle may be provided with a work carriage including a first handle and a second handle operatively associated with each other in any one of the directions of operation.

Wherein the first steering shaft and the second steering shaft are supported by a first steering shaft and a second steering shaft, respectively, and the first steering shaft and the second steering shaft are supported by the first steering shaft and the second steering shaft, respectively, And the first support plate and the second support plate may be connected by a first linear member and a second linear member that linearly move based on the rotation of the first support plate and the second support plate, .

Further comprising a pulley unit for steering the first driving wheel of the front driving wheels in accordance with the operation of the steering wheel, wherein the pulley unit comprises: a first pulley connected to the first steering shaft; And a second pulley for steering the first drive wheel by a connection shaft connected to the first drive wheel when the handle is operated.

The first pulley is provided at a larger ratio than the second pulley so that the first driving wheel can be steered at a steering angle greater than a steering angle of the steering wheel when the steering wheel is operated.

The upper body may be raised and lowered from the lower body, the first handle may be installed on the upper body, and the second handle may be installed on the lower body.

The first steering shaft may include a support shaft mounted to penetrate the upper body and connected to the first support plate, and a coupling shaft connected to the first handle to interpose the support shaft.

And a roller unit including a plurality of guide rollers contacting the peripheral portion of the support shaft and a housing fixed to the upper body to surround the guide rollers.

A guide rail is provided on a lower portion of the upper body and an upper portion of the lower body, and a lift portion for lifting the upper body, wherein the lift portion includes a lift frame for supporting the upper body, A frame wheel that moves along the guide rail when the lift frame is folded or unfolded; and a hydraulic cylinder that lifts the lift frame so that the lift frame is folded or unfolded.

At least one of the guide rails may be formed with a plurality of fastening grooves spaced apart to fasten the safety pins for braking the frame wheel.

The lower body may be formed with a lift guide groove on the lower side so that the lift means of the transfer device for lifting and transporting the body is guided to the lower side of the lower body to support the entire load of the body.

Wherein the upper body includes a lug engagement groove and the lower body includes a lug protruding through the lug engagement groove when the upper body is overlapped with the upper body, Means can be fastened.

And a bellows-type cover may be provided at one or more peripheral portions of the upper body and the lower body.

A sensor unit for measuring a distance between the upper body and the upper structure, and a control unit for braking the upper body to be raised from the lower body when the measured value exceeds the set distance.

The work vehicle according to an embodiment of the present invention includes a first handle and a second handle that operate in conjunction with each other in accordance with any one of the operation directions, thereby improving the efficiency of various operations.

In addition, it is possible to perform a quick and smooth movement even on a steep curve road through a driving wheel which is steered at a steering angle ratio larger than the steering angle of the steering wheel.

1 is a perspective view of a mobile bogie according to an embodiment of the present invention.
Fig. 2 is a bottom view of the work moving truck of Fig. 1; Fig.
Figures 3 and 4 illustrate the interlocked handles and associated structures of the work vehicle of Figure 1;
Fig. 5 shows a roller unit provided on the first steering shaft of the work moving bogie of Fig. 1. Fig.
FIG. 6 is a side view of the upper body of the work moving carriage of FIG. 1 lifted from the lower body. FIG.
FIG. 7 shows a frame wheel moving along a guide rail provided on a lower body of the work moving carriage of FIG. 1;
FIG. 8 is a side view showing a state in which the upper body of the work moving carriage of FIG. 6 is lowered and overlapped with the lower body.
FIG. 9 is a plan view showing the overlapped shape of the upper body and the lower body of FIG. 8. FIG.
Fig. 10 is a perspective view of a form in which a bellows-type cover and a sensor unit are provided on the work moving carriage of Fig. 1;
11 shows only the bellows-shaped cover of Fig. 11 separately.
Fig. 12 is a block diagram of the components of the work moving brakes of Figs. 1 and 11 and a control unit for controlling the components.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

1, a work moving carriage 100 according to an embodiment of the present invention includes a body 10, a driving wheel 20, a handle 30, a pulley unit 40 ), A lift portion, and a control portion (60).

The body 10 includes an upper body 10a and a lower body 10b. The upper body 10a is utilized as an operator's work space. To this end, the upper body 10a can include a work plate P1, a footstep 13 provided so that the worker can stand on the work plate P1 with his feet on, and a door 15 that can be opened and closed . A safety frame 17 is provided at the periphery of the upper body 10a to secure the safety of an operator located on the work plate P1.

The upper body 10a may include an open plate 18 which can be opened and closed so that an operator can easily check the operation of the various equipments provided on the lower body 10b and the abnormality on the upper body 10a. The operator can grasp the openings 18a provided in the open plate 18 by hand and open the openings 18 and visually confirm the operation and abnormality of the respective devices constituting the lower body 10b.

The upper body 10a may be raised or lowered from the lower body 10b. The moving member 12 provided at the lower peripheral end of the upper body 10a moves along the elevating guide member 14 of the lower body 10b when the upper body 10a is lifted or lowered.

The lower body 10b is provided with various facilities necessary for driving and elevating and lowering the mobile carriage 100 so as not to interfere with the operation of the operator. The front and rear ends of the lower body 10b may be provided with a bumper B for mitigating impact upon collision. The detailed description of each of the facilities and operations of the lower body 10b and the upper body 10a will be described together with the following components.

Referring to FIG. 2, the driving wheel 20 moves the body 10 according to the direction of operation of the handle 30. Here, the driving wheel 20 is mounted to the lower portion of the lower body 10b and includes front and rear driving wheels 20a to 20d. For example, the front drive wheels 20a and 20b are driven by the first drive wheel 20a and the second drive wheel 20b, and the rear drive wheels 20c and 20d are driven by the third drive wheel 20c and the fourth drive wheel 20d ). However, the present invention is not limited thereto, and a driving wheel may be provided in various numbers and shapes such as three wheels. Here, a single motor 24 for operating the first driving wheel 20a may be mounted on the first driving wheel 20a. The second driving wheel 20b is driven according to the traveling direction of the first driving wheel 20a and the rear driving wheels 20c and 20d are driven according to the traveling direction of the front driving wheels 20a and 20b.

Referring to FIGS. 1, 3 and 4, the handle 30 controls the advancing direction of the body 10. The handle 30 includes a first handle 30a and a second handle 30b that operate in cooperation with each other in any one of the operating directions. At this time, the first handle 30a may be mounted on the upper body 10a and the second handle 30b may be mounted on the lower body 10b. Thus, the operator can easily operate the handle 30 through the handle 30 mounted on the upper body 10a and the lower body 10b, It is possible to control the traveling direction. The handle 30 may be provided, for example, with a foldable handle. The first handle 30a and the second handle 30b described above are supported by the first steering shaft 31 and the second steering shaft 32, respectively.

The first steering shaft 31 and the second steering shaft 32 are connected to a first support plate 33 and a second support plate 30 which rotate according to the operating direction of the first handle 30a or the second handle 30b, 34). The first support plate 33 and the second support plate 34 are supported by the first linear member 35 and the second linear member 36 which are linearly moved based on the rotation of the support plates 33 and 34 Lt; / RTI > Each of the first linear member 35 and the second linear member 36 is connected to each of the ball joints 37a and 37b and the ball joints 37a and 37b coupled to the respective support plates 33 and 34 And may be configured with respective rods 38a and 38b.

5, the first steering shaft 31 described above is mounted to pass through the upper body 10a and has an engaging shaft 31b connected to the first handle 30a and a second engaging shaft 31b inserted into the engaging shaft 31b And a support shaft 31a connected to the first support plate 33. [ The support shaft 31a is provided with a larger size than the support shaft 31a so that the support shaft 31a is inserted thereinto, and the support shaft 31a and the engagement shaft 31b are provided with a plurality of level grooves L1, L2).

At this time, the first steering shaft 31 may be provided with the roller unit 70 to smoothly adjust the height of the first steering shaft 31. The roller unit 70 includes a plurality of guide rollers 72 which contact the periphery of the support shaft 31a of the first steering shaft 31 and a housing 74 which surrounds the guide rollers. Here, the housing 74 is fixed to the first flange 76 fixed to the upper end of the upper body 10a. At this time, the second flange 77 provided on the first flange 76 rotates in accordance with the rotation direction of the coupling shaft 31b, and the support shaft 31a rotates together with the steering direction of the coupling shaft 31b do.

The engagement shaft 31b can be effectively raised by the guide roller 72 of the roller unit 70 provided at the peripheral portion of the support shaft 31a when the upper body 10a is lifted. The fixing pin P3 is inserted into the first steering shaft 31 in a state in which the level groove L2 of the coupling shaft 31b and the level groove L1 of the supporting shaft 31a are aligned with each other at a predetermined height, Can be adjusted. The support shaft 31a can be effectively inserted into the engagement shaft 31b by the guide roller 72 of the roller unit 70 provided at the peripheral portion of the support shaft 31a when the upper body 10a is lowered.

Referring to Figs. 1 and 3, the pulley unit 40 steers the first driving wheel 20a in accordance with the operation of the handle 30. Fig. The pulley unit 40 includes a first pulley 41 connected to the support shaft 31a of the first steering shaft 31 and a second pulley 41 connected to the first pulley 41 by a belt 43, A second pulley 42 for steering the first drive wheel 20a by a connection shaft 27 connected to the first drive wheel 20a and support rolls 44a and 44b for maintaining a constant tension of the belt 43 ).

The first pulley 41 is provided at a larger ratio than the second pulley 42 so that the second pulley 42 rotates at a larger rate than the first pulley 41 when the handle 30 is operated. Therefore, the first driving wheel 20a, which is steered at a steering angle larger than the steering angle by the steering wheel 30, can be quickly and smoothly moved even on a steep curve. For example, smooth 90-degree steering is possible on a straight course. Each of the pulleys 41 and 42 and the belt 43 described above may be embodied, for example, with a timing pulley and a timing belt.

Referring to FIGS. 1 and 6, the lifting and lowering part lifts the upper body 10a from the lower body 10b. The elevating portion includes a lifting frame 52 for supporting the upper body 10a and guide rails 16a and 16b provided on the lower portion of the upper body 10a and the upper portion of the lower body 10b so that the lifting frame 52 can be folded or unfolded. A hydraulic cylinder 56 for raising and lowering the upper body 10a such that the lifting frame 52 is folded or unfolded and a hydraulic cylinder 56 for supplying hydraulic oil to the hydraulic cylinder 56. [ (58).

At this time, the lifting frame 52 may be provided in the form of a scissors. The above-described lifting frame 52 is provided at the intersection of the first supporting bar 52a and the second supporting bar 52b intersecting with each other and the first supporting bar 52a and the second supporting bar 52b, And a connecting shaft X serving as a center axis of the lifting frame 52. The lifting frame 52 can be provided on the left and right sides of the lower body 30b, respectively.

The frame wheel 54 is attached to the rear ends of the first support bar 52a and the second support bar 52b coupled to the respective guide rails 16a and 16b and is supported by the lower portion of the upper body 10a and the lower body 16b provided on the upper portions of the guide rails 10a, 10b. Here, the front ends of the first support bar 52a and the second support bar 52b may be hinged to the fixing member 59. [ The hydraulic cylinder 56 is fixed to the upper portion of the second support bar 52b by the transverse member 53 so that the second support bar 52b is moved up by the hydraulic oil supplied by the hydraulic pressure supply portion 58 Or lowered, the upper body 10a can be lifted from the lower body 10b.

7, the safety pin P4 for braking the frame wheel 54 mounted on the rear end of the second support bar 52b is fastened to the guide rail 16a provided on the upper portion of the lower body 10b A plurality of coupling grooves H1 may be formed apart from each other. This is to protect the operator and equipment by fixing the frame wheel 54 moving along the guide rail 16a provided on the upper portion of the lower body 10b in a stable distance at an appropriate distance. In another example, the plurality of coupling grooves H1 may be spaced apart from the guide rail 16b provided at the lower portion of the upper body 10a.

Referring to FIGS. 1, 8 and 9, the upper body 10a includes a lug engagement groove H2, and the lower body 10b includes a lug engagement groove H2 And a lug 19 protruding through the through hole 19a. At this time, at least one of the lugs 19 may be provided with a protruding portion 19a to support the lowered upper body 10a at a predetermined height. In this lug 19, the fastening means of the transfer device for lifting and transporting the body 10 is fastened, so that the moving carriage 100 can be efficiently transferred. The conveying device can include, for example, a crane, and the hook of the crane can be fastened to the lug 19. [

The lifting means of the transfer device for lifting and transporting the body 10 is guided to the lower side of the lower body 10b so as to support the entire load of the body 10 in the lower body 10b, H3) may be formed. Here, the conveying device may include, for example, a lifting device such as a forklift, and a fork of a forklift can be inserted into the corresponding lift guide groove H3. Therefore, the body 10 can be lifted upwards or downwards for convenient transportation.

Referring to FIGS. 10 and 11, a bellows-type cover 95 may be provided on the periphery of the lower body 10b. This is to protect the body 10 from the external environment. The upper and lower sides of the bellows-type cover 95 can be engaged with the upper body 10a and the lower body 10b by fastening means such as bolts 95a. The bellows-type cover 95 can be unfolded or folded according to the rising and falling of the upper body 10a. Needless to say, the upper body 10a may be provided with a bellows-type cover 95 in another example.

10, a sensor unit 90 mounted on the upper body 10a so as to be detachable by the support member 92 and vertically adjusted according to the operator's key may be provided. The sensor unit 90 prevents stenosis with the upper structure, thereby protecting the operator and enabling the operator to perform a smooth operation.

1, 10 and 12, the controller 60 controls each component of the mobile truck 100 according to a control command. The control unit 60 does not limit the installation position, so it is not shown in other drawings. The handle 30 may be provided with a control unit 80 including control buttons for advancing, reversing, ascending, descending, emergency stop, power on / off, warning sound, speed control, etc. of the body 10.

At this time, the control unit 60 can control the operations of the motor 24, the hydraulic pressure supply unit 58, the power supply unit 59, and the like based on the control command corresponding to the corresponding control button 80. [ For example, when the speed adjusting button 82 is selected, the controller 60 can adjust the moving speed of the body 10 by the motor 24 according to the pressing strength of the speed adjusting button 82. In addition, when the up / down button 84 is selected, the controller 60 can raise / lower the upper body 10a from the lower body 10b while the operator presses the up / down button 84 . These control commands can be transmitted and received between the respective devices by, for example, a communication method such as ZigBee.

The control unit 60 receives the measured value from the sensor unit 90 that measures the distance between the upper body 10a and the upper structure and compares the measured value with the set distance stored in the storage unit 65. When the measured distance exceeds the set distance, The operation of the upper body raised from the lower body can be braked by the operation of the upper body 10a rising from the lower body 10b. Here, the sensor unit 90 is detachably attached to the upper body 10a by the support member 92, and can be adjusted up and down to match the operator's key. The sensor unit 90 prevents stenosis with the upper structure, thereby protecting the operator and enabling the operator to perform a smooth operation.

The storage unit 65 may store control algorithms for various controls, set values, measured values by the sensor unit 90, control values, and the like. The storage unit 65 may be a nonvolatile memory device such as a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) But is not limited to, a volatile memory device such as a RAM (Random Access Memory) or a storage medium such as a hard disk drive (HDD) and a CD-ROM.

Further, each component shown in FIG. 12 may be composed of a kind of 'module'. Here, 'module' means a hardware component such as software or a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC), and the module performs certain roles. However, a module is not limited to software or hardware. A module may be configured to reside on an addressable storage medium and may be configured to execute one or more processors. The functionality provided by the components and modules may be combined into a smaller number of components and modules or further separated into additional components and modules.

The foregoing has shown and described specific embodiments. However, it is to be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the scope of the technical idea of the present invention described in the following claims It will be possible.

10: body 10a: upper body
10b: lower body 12: moving member
14: elevating guide member 16a, 16b: guide rail
19: lugs 20, 20a to 20d: drive wheels
24: motor 27: connecting shaft
30: handle 30a: first handle
30b: second handle 31: first steering shaft
31a: Support shaft 31b: Coupling shaft
32: second steering shaft 33: first supporting plate
34: second support plate 35: first linear member
36: second straight member 40: pulley unit
41: first pulley 42: second pulley
52: lifting frame 54: frame wheel
56: Hydraulic cylinder 58: Hydraulic supply part
59: power supply unit 60:
65: storage unit 70: roller unit
72: guide roller 74: housing
80: control unit 90:

Claims (13)

A body including an upper body and a lower body;
Front and rear drive wheels mounted on a lower portion of the body; And
And a handle for controlling a traveling direction of the body,
Wherein the handle includes a first handle and a second handle operatively associated with each other in any one of the operating directions,
Wherein the first steering shaft and the second steering shaft are supported by a first steering shaft and a second steering shaft, respectively, and the first steering shaft and the second steering shaft are supported by the first steering shaft and the second steering shaft, respectively, The first support plate and the second support plate are connected to a first supporting plate and a second supporting plate that rotate along the first supporting plate and the second supporting plate, and the first supporting plate and the second supporting plate are connected to each other by a first linear member and a second linear member, Balance. delete The method according to claim 1,
Further comprising a pulley unit for steering the first driving wheel of the front driving wheels in accordance with the operation of the steering wheel, wherein the pulley unit comprises: a first pulley connected to the first steering shaft; And a second pulley for steering the first drive wheel by a connection shaft connected to the first drive wheel when the handle is operated. The method of claim 3,
Wherein the first pulley is provided at a larger ratio than the second pulley so that the first driving wheel is steered at a steering angle greater than a steering angle of the steering wheel when the steering wheel is operated. The method according to claim 1,
The upper body is provided to be elevated from the lower body, the first handle is installed to the upper body, and the second handle is installed to the lower body. 6. The method of claim 5,
Wherein the first steering shaft is mounted to penetrate the upper body and includes a support shaft connected to the first support plate and a coupling shaft coupled to the first handle and interpolating the support shaft. The method according to claim 6,
And a roller unit including a plurality of guide rollers contacting the periphery of the support shaft, and a housing surrounding the guide roller and fixed to the upper body. 6. The method of claim 5,
A guide rail is provided on a lower portion of the upper body and an upper portion of the lower body, and a lift portion for lifting the upper body, wherein the lift portion includes a lift frame for supporting the upper body, A frame wheel moving along the guide rail when the lift frame is folded or unfolded; and a hydraulic cylinder for lifting and lowering the upper body by folding or unfolding the lift frame. 9. The method of claim 8,
Wherein at least one of the guide rails has a plurality of fastening grooves spaced apart so that the safety pin for braking the frame wheel is fastened. 10. The method according to any one of claims 1 to 9,
Wherein the lower body is provided with a lift guide groove on the lower side so that the lift means of the transfer device for lifting and transporting the body is guided to the lower side of the lower body to support the entire load of the body. 10. The method according to any one of claims 1 to 9,
Wherein the upper body includes a lug engagement groove and the lower body includes a lug protruding through the lug engagement groove when the upper body is overlapped with the upper body, A moving lane for the work to be connected. 10. The method according to any one of claims 1 to 9,
And a bellows-type cover at one or more peripheral portions of the upper body and the lower body. 10. The method according to any one of claims 1 to 9,
A sensor unit for measuring a distance between the upper body and the upper structure, and a control unit for braking the upper body to be raised from the lower body when the measured value exceeds the set distance.

Images