JPH0724887U - Work vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] A long plate-like material can be turned upside down 180 degrees and can be properly placed on a trolley or processing table. [Structure] A lift frame 9 which moves up and down along a mast 6 of a vehicle body 1, a left slide frame 70 and a right slide frame 3 which are slidably supported on the lift frame 9 in the left and right directions.
0, and a left clamp mechanism 7 attached to the left slide frame 70 so as to be rotatable up and down by 180 degrees in an upward posture and a downward posture.
6 and a right clamp mechanism 3 mounted on the right slide frame 30 so as to be rotatable up and down by 180 degrees in an upward posture and a downward posture.
6 and a vertical rotation mechanism 37 for vertically rotating the right clamp mechanism 36. The left and right clamp mechanisms 76, 36 clamp the long plate-shaped material and rotate it 180 degrees to turn it upside down 180 degrees.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work vehicle used for transporting, inverting, etc., a long plate material such as an ALC plate or an extruded plate at a construction site.

[0002]

[Prior art]

 At the construction site, work is performed by mounting long plate-shaped materials such as ALC plates and extruded plates as wall materials. However, this wall material is a large weight of 100 kg to 300 kg, and it is hard labor to handle it manually. Need a working vehicle.

That is, an example of the work of attaching the plate-shaped long member as a wall member will be described. First, a plurality of plate-shaped long members are placed on the floor in an overlapping manner. The plate-shaped long materials placed on top of each other are lifted one by one and placed on a trolley, moved by the trolley, mounted on a processing table, and subjected to mounting processing such as drilling and mounting of metal fittings. Although the long material is mounted vertically, it is necessary to turn the plate-shaped long material upside down during the above-mentioned mounting process.

As described above, in order to mount the plate-shaped long material as a wall material, lifting work, table-mounted operation, upside-down work, and the like are performed. As described above, the plate-shaped long material is large. Since it is heavy, it requires a lot of labor and requires multiple workers.

As a work vehicle for handling the above-mentioned long plate-shaped materials, an elevating body is provided on the vehicle body, and a gripping mechanism is attached to the elevating body so that the gripping mechanism can be moved back and forth, rotationally moved, and vertically rotated. It is known that one body is grasped and lifted, and transportation, forward / backward movement, rotational movement, and operation from horizontal to vertical can be performed.

[0006]

[Problems to be solved by the device]

 In the conventional work vehicle described above, the plate-shaped long material cannot be turned upside down, and since it grips the longitudinal middle portion of the plate-shaped long material, the gripping mechanism interferes with the carriage or processing table when it is placed on the carriage or processing table. It becomes very difficult to place the work on the trolley or processing table.

Therefore, an object of the present invention is to provide a work vehicle capable of solving the above problems.

[0008]

[Means for Solving the Problems]

 A vehicle body 1 provided with wheels, a mast 6 attached to the vehicle body 1, a lift frame 9 which can be lifted and lowered along the mast 6, and a downward attitude and an upward attitude on both left and right sides of the lift frame 9. A left clamp mechanism 76 and a right clamp mechanism 36, which are respectively mounted to be rotatable 180 degrees in the vertical direction, an elevating mechanism 20 for elevating the lift frame 9, and a vertical rotating mechanism 37 for vertically rotating the right clamp mechanism 36. Configured work vehicle.

[0009]

[Work]

 By rotating the right clamp mechanism 36 up and down while the long plate-shaped material is clamped by the left clamp mechanism 76 and the right clamp mechanism 36, the left clamp mechanism 76 rotates up and down together with the long plate-shaped material. The long plate-shaped material can be turned upside down 180 degrees. Further, since the left clamp mechanism 76 and the right clamp mechanism 36 are separated from each other in the left-right direction, when the clamped long plate-shaped material is placed on the carriage or the processing table, the left and right clamp mechanisms 76, 36 are set on the carriage or the processing table. The long plate-shaped material can be correctly placed on the trolley or processing table without interference.

[0010]

【Example】

 As shown in FIG. 1, FIG. 2 and FIG. 3, the vehicle body 1 has a substantially U-shape in plan view due to the horizontal frame 2 and the pair of left and right leg frames 3, 3, and the horizontal frame 2 has a pair of left and right caster wheels 4, 4. , And fixed wheels 5 are respectively attached to the front ends of the leg frames 3 so that the fixed wheels 5 do not project above the leg frames 3.

A mast 6 is attached to the horizontal frame 2 of the vehicle body 1, and the mast 6 is formed by connecting a pair of left and right vertical guides 7, 7 to the upper snare 8 and connecting the mast 6 to the mast 6. A lift frame 9 is movably supported.

The lift frame 9 includes a vertical member 10 and a pair of left and right roller brackets 11. A pair of upper and lower front rollers 12 and a pair of upper and lower rear rollers 13 supported by the roller brackets 11 are provided on the vertical guides 7. The lift frame 9 is designed to smoothly move up and down in contact with the front and rear surfaces, and the vertical plate 10 is vertically mounted with the upper and lower right cylinders 14 and 15 in a horizontal direction with a vertical space therebetween to form a right bearing portion. The left and right upper and lower cylindrical bodies 16 and 17 are laterally attached at intervals in the vertical direction to form a left support portion, and the vertical plate 10 is provided with left and right handles 18 and 19.

An elevating mechanism 20 is attached across the lift frame 9 and the vehicle body 1. The elevating mechanism 20 is wound around a lift cylinder 21, a sprocket 23 provided on a piston rod 22 thereof, and a sprocket 23 thereof. A chain 24 connected to the lift cylinder 21 and the lift frame 9, a foot-operated pump 27 that supplies the pressure oil in the tank 26 to the lift chamber of the lift cylinder 21 by a pedal 25, and a lift chamber of the lift cylinder 21. The elevating mechanism 20 is composed of a lever 28 that operates a valve for returning pressure oil to the tank 26, and a detailed description thereof will be omitted.

The right slide frame 30 is provided with upper and lower horizontal members 31, 32 facing in the left-right direction, a vertical member 33, and a forward facing horizontal member 34 protruding forward. The upper and lower horizontal members 31, 32 are the right upper and lower cylindrical bodies 14 respectively. , 15 are slidably fitted to the left and right so that they can be fixed by lock bolts 35, and a right clamp mechanism 36 is provided 180 degrees vertically in a downward position and an upward position near the front end of the forward cross member 34. A vertically rotating mechanism 37 which is rotatably mounted and which vertically rotates the right clamp mechanism 36 by 180 degrees is mounted.

The right clamp mechanism 36 includes a main body 38, a front slide arm 41 and a rear slide arm 42 slidably fitted in the left and right guide cylinders 39 and 40 of the main body 38, and a front slide arm 41. The front clamp piece 43 attached to the rear slide arm 42, the rear clamp piece 44 attached to the rear slide arm 42, and the slide mechanism 45 that slides the front and rear slide arms 41 and 42 in the direction toward and away from each other. ing .

The front clamper piece 43 supports a clamp pad 47 on a mounting piece 46 fixed to the front slide arm 41 so that a pin 48 can swing in a clamp direction, and a mounting piece 46 rotatably supports the clamp pad 47. The cam 49 is brought into contact with the back surface of the clamp pad 47, and the cam 49 is rotated by the lever 50 so that the clamp pad 47 can be swung in the clamping direction and the unclamping direction. A clamp pad 51 is fixed to the arm 42 via a bracket 42a.

The slide mechanism 45 is connected to the bracket 42 a of the front slide arm 41 and the rear slide arm 42 to urge the gas spring 52 in the unclamping direction, and the bracket 42 a of the rear slide arm 42 has a ratchet handle 53. A sprocket 54 supported in a forward and reverse direction by means of a sprocket 54, and one end of the sprocket 54 wound around the sprocket 54 is connected to the front slide arm 41, and the other end is connected to the front slide arm 41 via a spring 55. It is composed of a chain 56, and when the ratchet handle 5 rotates the sprocket 54 in the forward or reverse direction, the front slide arm 41 and the rear slide arm 42 slide in the front-rear direction to perform the clamp operation and the unclamp operation. The gas spring 52 may be connected to the main body 38 and the front slide arm 41, and the sprocket 54 may be supported on the main body 38.

A rack 57 is attached to each of the front and rear slide arms 41 and 42 so as to face each other, and the rack 57 is engaged with a pin-on 58 supported on the main body 38, respectively, and the front and rear slide arms 41 and 42 are engaged with each other. Are synchronized with each other.

The vertical rotation mechanism 37 includes a rotary plate 60, and the rotary plate 60 is fixed to a rotary shaft 61 rotatably supported by the forward cross member 34, and the rotary shaft 61 is provided on the main body 38. An endless chain 63, which is fixed to the bracket 38a and is rotatably supported on the forward cross member 34, is wound around a sprocket 62 and is fixed around the rotary plate 60. The sprocket 62 is fixed to the ratchet handle 64. The rotation plate 60 rotates normally and reversely, and the rotation plate 60 rotates normally and reversely to rotate the right clamp mechanism 36 up and down 180 degrees together with the rotation shaft 61.

Like the right slide frame 30, the left slide frame 70 is provided with upper and lower horizontal members 71 and 72 facing in the left-right direction, a vertical member 73, and a forward facing horizontal member 74 protruding forward. , 72 are slidably inserted in the left and right upper and lower cylindrical bodies 16, 17 so that they can be fixed by the lock bolts 75, and the left clamp mechanism 76 is in a downward posture and an upward posture in the vicinity of the front end of the forward cross member 74. It is mounted 180 degrees up and down on its own. Since the left clamp mechanism 76 has the same structure as the right clamp mechanism 36, the same reference numerals are used and the description thereof is omitted.

A stopper 77 is movably attached to the main body 38 of the left and right clamp mechanisms 76 and 36 in the clamping direction and the orthogonal direction, and a bolt 79 is screwed into any one of a plurality of bolt holes 78 to be fixed. I am doing it.

Next, the operation will be described. As shown in FIGS. 2 and 3, with the left clamp mechanism 76 and the right clamp mechanism 36 facing downward, the left and right clamp mechanisms 76, 36 are lowered together with the lift frame 9 and the uppermost of the long plate-shaped members A is stacked. The front clamps 43 and the rear clamps 44 are positioned on both sides in the width direction of the long plate-shaped body A.

At this time, the height of the stopper 77 is adjusted according to the thickness of the elongated plate A, and when the stopper 77 contacts the upper surface of the elongated plate A, the front clamp piece 43, The rear clamp piece 44 has the correct clamp height.

Further, by loosening the lock bolts 35 and 75, the right slide frame 30 and the left slide frame 70 are respectively swung in the left and right directions with respect to the lift frame 9, whereby the left clamp mechanism 76 and the right clamp mechanism are You can adjust the left-to-right spacing with 36.

In the above state, the clamp pads 47 of the left and right front clamp pieces 43 are swung in the clamping direction, and the sprocket 62 is normally rotated by the ratchet handle 64 to bring the front slide arm 41 and the rear slide arm 42 close to each other. The long plate-shaped material A is clamped by sliding in the direction, and the lift frame 9 is lifted to lift one long plate-shaped material A. At this time, since the front clamp pieces 43 and the rear clamp pieces 44 are positioned equidistantly in the front-rear direction with the vertical rotation center (the rotation axis 61) as a boundary, the long plate-shaped member is properly clamped in the horizontal posture and lifted. it can.

In this state, the left and right handles 18 and 19 are carried to travel the vehicle body 1 to carry it to a trolley or processing table, and the lift frame 9 is lowered and unclamped so that the long plate-shaped material A is trolleyed or processed. Place on top. At this time, the left clamp mechanism 76 and the right clamp mechanism 36 are spaced apart from each other on the left and right sides of the dolly or the work table, and the left and right clamp mechanisms 76 and 36 are long without any interference with the dolly or the work table. The plate-shaped material can be properly placed on the carriage or processing table.

As described above, the right clamp mechanism 36 is moved upward by rotating the sprocket 54 with the ratchet handle 53 of the vertical rotation mechanism 37 while the long plate-shaped material A is clamped by the left and right clamp mechanisms 76, 36. Since the left clamp mechanism 76 also sequentially rotates upward through the long plate material A, the left and right clamp mechanisms 76 and 36 clamp the long plate material A. In this state, the long plate-shaped material A can be turned upside down by rotating 180 degrees in the upward posture.

To unclamp the long plate-shaped material A while it is clamped, the ratchet handle 64 of the slide mechanism 45 is rotated in the reverse direction to rotate the sprocket 62 in the reverse direction as described above. 41 and the rear slide arm 42 may slide in a direction away from each other, but by rotating the cam 49 with the handle 50 and swinging the clamp pad 47 of the front clamp piece 43 in the unclamping direction, the long plate is extended. The blank A can be unclamped.

Further, since the right slide frame 30 and the left slide frame 70 can be pulled out from the lift frame 9 by loosening the lock bolts 35 and 75, the work vehicle can be the vehicle body 1, the mast 6, the lift frame 6 and the left slide frame 70. The left clamp mechanism 76, the right slide frame 30, and the right clamp mechanism 36 can be divided into three parts, which facilitates transportation between sites and can be mounted on a small elevator.

[0030]

[Effect of device]

 By rotating the right clamp mechanism 36 up and down while the long plate-shaped material is clamped by the left clamp mechanism 76 and the right clamp mechanism 36, the left clamp mechanism 76 rotates up and down together with the long plate-shaped material. The long plate-shaped member can be turned upside down 180 degrees, and since only one vertical rotation mechanism 37 is required, the structure is simple and the cost is low. Further, since the left clamp mechanism 76 and the right clamp mechanism 36 are separated from each other in the left-right direction, when the clamped long plate-shaped material is placed on the carriage or the processing table, the left and right clamp mechanisms 76, 36 are set on the carriage or the processing table. The long plate-shaped material can be correctly placed on the trolley or processing table without interference.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a front view.

FIG. 3 is a plan view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Car body, 6 ... Mast, 9 ... Lift frame, 20 ... Lifting mechanism, 30 ... Right slide frame, 36 ... Right clamp mechanism, 37 ... Vertical rotation mechanism, 38 ... Main body, 41 ... Front slide arm, 42 ... Rear part Slide arm, 43 ... Front clamp piece, 44 ... Rear clamp piece, 45 ... Slide mechanism, 70 ... Left slide frame, 76 ... Left clamp mechanism.

Claims (6)

[Scope of utility model registration request] 1. A vehicle body 1 provided with wheels, a mast 6 attached to the vehicle body 1, a lift frame 9 which can be raised and lowered along the mast 6, and a downward attitude and an upward direction on the left and right sides of the lift frame 9. 18 up and down over the posture
A work vehicle including a left clamp mechanism 76 and a right clamp mechanism 36 that are each rotatably mounted at 0 degrees, an elevating mechanism 20 that elevates and lowers the lift frame 9, and a vertical rotation mechanism 37 that vertically rotates the right clamp mechanism 36. 2. The left slide frame 70 is slidably supported on the lift frame 9 in the left-right direction, and the right slide frame 30 is slidably supported on the lift frame 9 in the left-right direction. The work vehicle according to claim 1, wherein the left clamp mechanism 76 is mounted on the right slide frame 30, and the right clamp mechanism 36 is mounted on the right slide frame 30. 3. The lift frame 9 is provided with a right bearing portion and a left bearing portion, and a right slide frame 30 is movably supported by the right bearing portion so that the right slide frame 30 can be inserted in and removed from the front left bearing portion. The work vehicle according to claim 2, wherein the frame 70 is supported so as to be slidable from side to side so as to be freely inserted and extracted. 4. A front slide arm 41 and a rear slide arm 42 slidably supporting a right clamp mechanism 76 and a left clamp mechanism 36 on a main body 38, and a clamping direction and an unclamping direction on the front slide arm 41. A front clamp piece 43 swingably attached to the rear slide arm 42, a rear clamp piece 44 attached to the rear slide arm 42, and a slide for sliding the front slide arm 41 and the rear slide arm 42 in a clamping direction and an unclamping direction. The work vehicle according to claim 1, 2 or 3, comprising a mechanism 45. 5. The vertical rotating mechanism 37 includes a rotating plate 60 for rotating a support shaft to the right clamp mechanism 36, a sprocket 62 rotated forward and backward by a ratchet handle 64, and the rotating body wound around the sprocket 62. The work vehicle according to claim 1 or 2, comprising a chain 63 connected to 60. 6. The slide mechanism 45 is rotatably supported by means for biasing the front slide arm 41 and the rear slide arm 42 in the unclamping direction, and the rear slide arm 42 by a ratchet handle 53 so as to be freely rotatable. The work vehicle according to claim 4, comprising a sprocket 54 and a chain 56 connected to the front slide arm 41 wound around the sprocket 54.