KR19990044798A - Automatic opening and closing cover of dump truck - Google Patents

Abstract

The present invention provides an opening and closing device for automatically opening and closing the cover of the dump truck loading box, according to the height of the load loaded on the loading box to operate the opening and closing operation of the cover so that the cover is not disturbed in the sliding state ( 12, 12), and the cover of the new construction to ensure that the cover is completely in contact with the center, rear and top sides of the loading box when the cover is covered, and the cover is peeled off at the height of the operating bar when peeled off. I wanted to get a device.

Description

Automatic opening and closing cover of dump truck

The present invention provides a device that allows the driver to open and close automatically by a simple operation of a switch in the driver's seat when the truck transports loads (gravel, sand, soil) so that the loads do not flow down the road. It is an object of the present invention, and another object of the present invention to facilitate the opening and closing action even when the load is higher than the loading box.

The present invention relates to a cover automatic opening and closing device of a dump truck loading box that allows the lid of the dump truck loading box to be automatically opened and closed. More specifically, the rear upper part and the upper both side wall portions of the loading box according to the height of the load and the center of the load. The center part of the cover is sealed with a sewing machine through a wire so that it can be covered in a close contact until the end, and the drum is driven by a forward / reverse motor of a driving part composed of the front of the loading box by fastening several rings with wires. It relates to a cover automatic opening and closing device of the dump truck loading box to automatically open and close the cover by causing the wire to be wound or unrolled by the overshaft.

In general, dump trucks that carry loads such as gravel, sand, soil, etc. are regulated by law to safely cover the loads so that the loads do not flow down the road during transportation.

As a result, many kinds of cover devices have appeared, which have various structures and functions to cover the dump truck's loading box. However, most of them are loaded with loads higher than the fixed quantity. There is a problem that the opening and closing action of the cover that slides almost horizontally on the loading box is not easily made, and the loading is caused by the gap between the upper and both rear wall parts and the rear upper part of the loading box even when the cover is covered. There was a problem that the noise is severe during operation due to the flow down or the resistance of the air.

In the present invention, the pusher dog (pusherdog) having a roller is connected to the transfer chain operating in the guide tube by the drive of the stationary motor on both side walls of the top of the loading box to solve the above problems, and to operate When the bar with the cover is fastened to the drum of the drive unit by fixing the bar by the rotation bracket, the operation bar moves to the front side of the loading box, and the cover is removed. In addition, it provides a lid automatic opening and closing device of the dump truck loading box in which the cover is covered to the upper both sides wall by the operation of the auxiliary bar hinged from the fixture of the upper corners on both sides of the front.

1 is an exemplary side view showing the opening and closing device of the present invention installed on both side walls of the stacker;

2 is a perspective view showing the overall configuration of the present invention,

3 is a front view of the driving unit of the present invention installed in the front of the loading box,

Figure 4 is a side view showing the configuration of the operating state according to the present invention A, B is a detailed enlarged cross-sectional view,

5 is a detailed perspective view of a driving unit according to the present invention;

6 is a cross-sectional view showing the configuration of FIG. 5 of the present invention;

7 is a cross-sectional view of the configuration of the operation bar according to the present invention;

8 is a perspective view showing the configuration of the rung according to the present invention,

9 is a perspective view of main parts of the operating unit according to the present invention;

10 is a full plan perspective view of the lid according to the present invention;

Explanation of symbols on the main parts of the drawings

T: Dump Truck T´: Cap Guard

100: loading box 2, 2: upper side wall portion

3, 3: " "4, 4: Shear Sprocket

5, 5: Rear sprocket M: Forward and reverse motor

B: Gearbox W: Worm

WH: Worm wheel S: Rotating shaft

6, 6: transfer chain 7, 7: pusherdog

8, 8: guide roller 9, 9: sliding roller

10, 10: rotating bracket 11, 11: hinge

12, 12; Operating Bar 13, 13: Guide Roller

14: crosspiece 15, 15: guide roller

(16, 16), (17, 17): holes (18, 18), (19, 19): wire

(20, 20), (21, 21): springs (22, 22), (23, 23): fasteners

24, 24: direction change roller body 25, 25: guide roller

(D, D), (D ', D'): Drum 26, 26: Guide roller

27, 27: fixture 28, 28: hinge

29, 29: auxiliary bar 30, 30: the upper roller

31, 31: spring 32, 32: wire

33, 33: bracket 34, 34; Up and down roller

35, 35; Roller group 36, 36: fixture

37, 37: Push rod 38, 38: sliding piece

39; Cover 40, 40: hook

41: steel spring 42: drum shaft

43: spiral axis 44: central axis

45: Square ball 46: blind spot

47, 48: Sprocket 49: Chain

50: switch box

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 and 2 is a side view and an overall main perspective view of the opening and closing device of the present invention installed on the upper both sides 2, 2 of the dump truck (T) loading box 100 of the upper two side wall portions (2, 2) The configuration is the same, and in the following description, the same reference numerals are used.

That is, the lower part of the upper side both side wall portions (2, 2) of the loading box 100 is divided in the longitudinal direction " "The guide chains 3 and 3 having a cross section of the shape are mounted, and the conveying chains 6 and 6 are constituted by the sprockets 4 and 4 (5 and 5) installed at both front and rear ends thereof, and the loading chains 100 and 100 are loaded. As the forward and reverse drive the sprockets 4 and 4 of the front end to the rotation axis S of the worm wheel WH which meshes with the worm W in the gearbox B by the forward and reverse motor M in front of the The conveying chains 6 and 6 have a pusherdog 7 and 7 connected therewith by reciprocating a certain distance inside and at the top of the guide tubes 3 and 3. &Quot; Slide inside the guide tubes 3 and 3 by the guide rollers 8 and 8 which are exposed to the cracked lower portions of the female guide tubes 3 and 3, and one end of the sliding rollers 9, 9) The rotating brackets 10 and 10, which are configured to be movable around the hinges 11 and 11, are mounted thereon, and the operating brackets 12 and 12 are screwed to the rotating brackets 10 and 10. It is fixed.

The operation bars 12 and 12 are spaced a little from the middle of the guide rollers 13 and 13 formed at the upper end thereof and the crossbar 14 supporting and fixing the operation bars 12 and 12 in this area. The guide rollers 15 and 15 which have been installed are guided into the operating bars 12 and 12 and the crosspiece 14 through the respective holes 16 and 16 and 17 and 17, respectively. , 19, one end of the spring (20, 20) (21, 21) is fixed to the fixtures 22, 22 (23, 23), the other end of the wire (18, 18) is a cap guard (T ') It is wound on the drums D and D and the drum shaft 42 through the turning rollers 24 and 24 and the center guide rollers 25 and 25 mounted on the upper corners of the upper ends of the wires. 19 and 19 are wound around drum D 'and D' and drum shaft 42 through guide rollers 26 and 26 composed of both sides of guide rollers 25 and 25 located at the center. When (D, D) (D ', D') and drum shaft 42 rotate in reverse, wires (18, 18) (19, 1) 9) to be released again, while the wires 18 and 18 are connected to the secondary bars 29 and 29, which consist of hinges 28 and 28 on fasteners 27 and 27 located at the upper corners of the stack 100. At the same time, the upper rollers 30 and 30 are supported and supported, and both ends of the springs 31 and 31 are connected to the turning rollers 24 and 24 and the auxiliary bars 29 and 29 to give an extension force. The other end of the wire (32, 32) is fixed to the auxiliary bar (29, 29) by using another separate wire (32, 32) slightly below the (31, 31). Roller group 35, which is guided together with the transfer chains 6 and 6 passing through the upper and lower rollers 34 and 34 formed of brackets 33 and 33, and is installed at the front end of the guide tubes 3 and 3 on It is fixed to the fixtures 36 and 36 via 35).

The transfer chains 6 and 6 are provided with push bars 37 and 37 fixed to the chains 6 and 6 to push the fixtures 36 and 36. Sliding rollers (9, 9) to the sliding pieces (38, 38) formed in the lower portion of the guide pipe (3, 3) from the rear of the upper side wall portion (2, 2) in the vertical direction along the 3) The sliding bar is fixed at a position capable of pushing the fixtures 36 and 36 when the operating bars 12 and 12 are operated.

And the wires (18, 18) (19, 19) is fastened to the cover (39) using several rings (40, 40) consisting of a cover 39 to the wires (19, 19) in the middle It consists of a strong spring 41 at intervals.

In addition, the drum shaft 42 of the drive unit has a spiral shaft 43 guided and fixed therein, and the central shaft 44 is further installed inside the spiral shaft 43 so that one end of the drum shaft 42 " "It is formed in a square 46 to a certain length so that it can be coupled to the square hole 45, the other end of the central shaft 44 is the chain 49 by the rotating shaft (S) and the respective sprockets 47, 48 The reference numeral 50 denotes a switch box.

Referring to the operation of the present invention configured as described above,

In the present invention, when the lid 39, which is composed of an upper portion of the loading box 100 and is opened and closed, is folded on the cap protector T ', the wire 39 which fastens the lid 39 to several hooks 40 and 40 ( 18, 18) (19, 19) are all wound on the drum (D, D) (D ', D') and drum shaft 42 of the drive unit, so all operations are performed unless the switch of the switch box 50 is not operated. Since it is in a stopped state, it is easy to load the load such as soil, gravel and sand in the loading box 100.

After the load is loaded, when the driver turns on the switch provided in the driver's seat, the stationary motor M of the driving unit is driven in the reverse direction by the power applied to the switch box 50 and at the same time, the gear box B (W) and the central shaft by a chain 49 connecting the sprocket 47 of the central shaft 44 and the rotary shaft S which is engaged with the worm wheel (WH) and the rotation shaft (S) (44) also rotates.

In this way, the cover 39 is covered by the central shaft 44 and the rotating shaft (S) at the same time to the loading box 100, the action of the wires (18, 18) (19) first wound on the drum shaft (42) When the wires 18, 18 (19, 19) wound on the drums D, D (D ', D') are gradually released from the order in which they are released, the lid 39 is completely loaded (100). Cover the upper portion of the) and this action consists of one end of the drum shaft 43 coupled to the spiral shaft 43 " &Quot; The drum shaft 42 is rotated by the square portion 46 of the central shaft 44 coupled to the square hole 45 by moving in the direction of " → " ) When the strips are removed, the drums D, D (D ', D') and the drum shaft 43 are moved while rotating in the table direction by the motor M driving in the forward direction. When (19, 19) is wound or unwinded to the drum (D, D) (D ', D') to facilitate the opening and closing action in the rear of the stacking box 100, the lid 39 is loaded off the rear (100 When the horizontal opening and closing at the top of the () is the wire (18, 18) (19, 19) is wound or unwinded to the drum shaft (43).

On the other hand, the sprockets 4 and 4 at both front ends of the rotating shaft S that rotate simultaneously with this action of the drive unit are composed of the sprockets 5 and 5 at the rear end and the transfer chains 6 and 6, and the transfer chain 6 , Part of 6) the lower part is cracked " Guide pipes 3, 3 of which are connected at both ends of the chains 6, 6 and one end of the sliding rollers 9 at the pusher dogs 7, 7 having guide rollers 8, 8. , The rotational brackets 10 and 10 composed of 9 are mounted so as to be movable left and right about the hinges 11 and 11 so that the operating bars 12 and 12 screwed thereto have the motor M in the forward direction. When driven by the chain (6, 6) is moved to the rear direction of the stacking box 100, the sliding rollers (9, 9) is sliding to the sliding pieces (38, 38) and at the same time flipped back to the cover One end of the wires 18, 18 (19, 19) with the lid 39 above to cover 39 to the rear of the stacker 100 is the upper guide roller 13 of the operating bars 12, 12, respectively. And springs 20 and 20 therein through the guide rollers 15 and 15 of the crossbar 14 and the holes 16 and 16 and 17 and 17 supporting the operating bars 12 and 12. In a state of being coaledged with (21, 21) It is fixed to the fixture (22, 22) (23, 23) is to provide a retracting force to the wire (18, 18) (19, 19) during the opening and closing operation to be able to perform the opening and closing operation flexibly.

On the other hand, when the cover 39 is covered with the back of the stacker 100, the auxiliary bar (29, 29) of the upper roller (30, 30) hanging on the wire (18, 18) is the upper corner of the stacker 100 The wires 32 and 32 connected thereto while being supported by the hinges 28 and 28 at the fixtures 27 and 27 located in the transfer chains 6 and 34 are formed between the rollers 34 and 34 formed of the brackets 33 and 33. It is guided as shown in 6) and is fixed to the fixtures 36 and 36 via the roller groups 35 and 35, but a predetermined distance from the fixtures 36 and 36, that is, the operation bars 12 and 12 are rearward. The auxiliary bars 29 and 29 operate in the dotted line direction shown in FIG. 4 by the push rods 37 and 37 that push the fixtures 36 and 36 when fully flipped, thereby loading both edges of the lid 39. Cover in close contact with the upper both side wall portion (2, 2) of the (100).

When the cover 39 is peeled off, the operation is reversed and the operation is made lighter by the springs 31 and 31 connected thereto, and the cover 39 is peeled off while the wires 18 and 18 ( When the wires 19 and 19 are wound around the drums D and D (D 'and D') and the drum shaft 42, the wires 18 and 18 are changed to the turning roller bodies 24 and 24 and the guide roller 25. , 25) and the wires 19 and 19 pass through the guide rollers 26 and 26 constituted by both of the center guide rollers 25 and 25 so that the opening and closing action of the lid 39 is completed. .

As described above, the present invention opens and closes the lid 39 to the upper portion of the loading box 100 by the height of the operation bars 12 and 12 constituted by the upper side wall portions 2 and 2 of the upper loading box 100. The center of the loading box 100 as well as the front of the loading box 100 together with the steel springs 41, which are configured at regular intervals between the loaded loads and the lower loads, as well as the intermediate wires 19 and 19 of the cover 39. By covering the both sides of the rear wall and the top and the top safely, it eliminates the noise caused by air resistance during operation and prevents the load from flowing down through the gap between the cover and the storage box, thus providing easy transportation.

Claims (1)

Dump trucks (T) on the upper sides (2, 2) The guide pipes 3 and 3 of the "type" are installed, and the sprockets 4 and 4 (5 and 5) formed at both front and rear ends thereof operate the feed chains 6 and 6 by driving the stationary motor M. In the opening and closing device for opening and closing the cover 39, the front sprocket (4, 4) is composed of a rotating shaft (S) that is engaged with the worm (W) and worm wheel (WH) in the gear box (B), The conveying chains 6, 6 have guide rollers 8, 8 and have sliding rollers 9, 9 at one end to the side of the pusher dogs 7, 7 which are exposed below the split guide tubes 3, 3. Rotating brackets (10, 10) provided with a hinge (11, 11) to fix the operating bars (12, 12) with a screw and the operating bars (12, 12) is the upper end of the roller (13, 13) is formed The hooks 40, 40 and the steel springs 41 through the holes 16, 16, 17, 17 of the rollers 15, 15, which are arranged at regular intervals in the middle thereof with the crossbars 14 fixed thereto. Wires 18, 18 (19, 1) fastening cover 39 formed of 9) guide and fix the springs 20, 20, 21, 21 and the fixtures 22, 22, 23, 23 therein, respectively, and the other ends of the wires 18, 18, 19, 19, respectively. The drums D, D (D ', D') and the drum shaft 42 of the drive unit via the turning roller bodies 24, 24, the central rollers 25, 25, and the rollers 26, 26; At the same time, the drum shaft 42 has a spiral shaft 43 therein and a central shaft 44 is installed inside the spiral shaft 43. "Forming a square portion 46 coupled to the square hole 45 is driven forward and backward by the chain 49 by the rotating shaft (S) and the sprockets 47, 48, the transfer chain (6, 6) The operation bars 12 and 12 configured at the rear side move to the rear side, and the sliding rollers 9 and 9 of the rotation brackets 10 and 10 slide on the sliding pieces 38 and 38 so that the operation bars 12 and 12 are flipped back. When it is pressed, the auxiliary bars 29, 29, which consist of hinges 28, 28, on the fixtures 27, 27 are actuated to allow the wires 18, 18, to rollers 30, 30, which are strung the wires 18, 18 to their upper ends. , 18 is a roller formed by the brackets 33 and 33 on the guide tubes 3 and 3 by the wires 32 and 32 of the auxiliary bars 29 and 29 so as to be seated by the upper both side wall portions 2 and 2. 34, 34 and through the roller group (35, 35) of the guide pipe (3, 3), such as the transfer chain (6, 6) in the state fixed to the fixture (36, 36) push rod (37, 37) Automatic opening and closing of the cover of the dump truck loading compartment, characterized by a configuration that is pushed).