JP3031901B1 - A transport vehicle equipped with a container reversing mechanism - Google Patents

Abstract

A drum is turned upside down to discharge contents. SOLUTION: An elevating frame 2 pivotally supported on a bogie 1 so as to be rotatable up and down, a reversing frame 4 rotatably supported at a free end of the elevating frame 2, and a rotation support shaft 42 of the reversing frame 4. A link mechanism 6 connected to the rotating frame 4 for tilting the reversing frame 4 forward in accordance with the ascending rotation of the lifting frame 2;
When the container 9 supported by is rotated to a substantially horizontal position, the spring 3 acts to provide resistance to the rotation support shaft 42 when the container is further tilted forward. With the rotation, the reversing frame 4 automatically becomes gradually inclined forward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport vehicle capable of transporting a cylindrical container such as a drum can and discharging the contents by raising and tilting the container.

[0002]

2. Description of the Related Art In a conventional transport vehicle capable of transporting a drum to a predetermined position, lifting the drum and reversing the contents, and discharging the contents, a lifting operation and a reversing operation of the drum are performed separately. It is necessary to raise the drum once to a predetermined height and then turn it over, and it takes time and effort to discharge the contents of the drum. The present invention discloses a truck capable of automatically tilting the can forward to discharge the contents when the drum can is lifted.

[0003] A transport vehicle equipped with the container reversing mechanism of the present invention comprises:
A lifting frame (2) pivotally supported on a bogie (1) so as to be rotatable up and down in a plane perpendicular to the ground surface of the wheels of the bogie and connected to a lifting drive (7); and the lifting frame (2) Stand at the free end of
An arm (40) rotatably supported in a plane perpendicular to the grounding surface of the vehicle wheel and substantially half way around the body of the cylindrical container (9), and a container gripper (5) supporting the upper and lower ends of the container. The reversing frame (4) provided, and the other end is pivotally connected to the connecting rod (64), one end of which is connected to the rotation support shaft (42) of the arm (40) and which is supported by the carriage (1), and the elevating frame. A link mechanism (6) for rotating the reversing frame (4) in accordance with the upward rotation of (2);
A spring (3) that acts to provide resistance to rotation of the rotation support shaft (42) when the container is further tilted forward from the point in time when the container (9) supported by is rotated to a substantially horizontal posture. Is done.

[0004]

[Function and effect] The container (9) in the upright state is the inverted frame.
(4) Thrust a carrier into the container (9) so as to enter the inside. The upper and lower ends of the container are supported by the container gripper (5).
The lifting frame (2) is gradually raised and rotated by the lifting driver (7). When the lifting frame (2) is raised, the reversing frame (4) on the lifting frame (2) is also raised to lift the container (9).

Link mechanism by raising the lifting frame (2)
By the function of (6), the reversing frame (4) is forcibly rotated in the forward tilt direction of the container (9). When the contents of the container (9) are full, the discharge of the contents is started only by slightly tilting the vertical container forward, and the container is gradually tilted forward to discharge the contents. Because the contents, reversing frame
Since the center of gravity of the container including (5) is located rearward of the rotation support shaft (42), there is no possibility that the container will rotate forward. When the content of the container is small, when the container (9) is lifted and tilted forward, the forward tilt must be deepened so that the outlet side of the container (9) is lowered, and the content, the reversing frame The center of gravity of the container including (5) moves forward of the rotation support shaft (42), and the container (9) is about to rapidly rotate forward. However, when the container (9) is further tilted forward from the substantially horizontal position, that is, when the center of gravity of the container is displaced forward from the rotation support shaft (42) of the reversing frame (4), the transport vehicle of the present invention. ,Spring
The force of (3) becomes the resistance of the container (9) to lean forward. Therefore, there is no danger that the container 9 at the ascending position is suddenly inverted so that the discharge port is directed right below, and there is no problem that the waste is stained around by the sudden inversion. When the lifting drive (7) is driven, the container (9) can be further inclined forward against the spring (3).

When the elevating frame (2) is lowered, the reversing frame (4) descends together with the elevating frame (2) while rotating in the direction of returning the container (9) to the upright posture. (9) can be grounded in a standing state. As described above, the container (9) can be tilted forward while being lifted.
The contents of (9) can be discharged quickly.

[0007]

1 and 2 show a carrier according to the present invention. In the following description, the front is referred to as the left side in the drawing, that is, the side supporting the container (9), and the rear is referred to as the drawing. Right side,
That is, the operation side. The transport vehicle is a trolley (1) and the trolley (1)
It comprises an elevating frame (2) pivotally supported at its base end, and a reversing frame (4) provided on the elevating frame (2) to support and invert the container (9).

The cart (1) includes a U-shaped frame (11) formed by projecting inclined bars (11b) and (11b) obliquely downward and forward at both ends of a handle rod (11a) for hand pushing. Both slanted rods (1
1b) A right angle rod (12) located below (11b) and connecting the center and front end of the angled rod (11b), and a bent part of the angled rod (12) and the angled rod (11).
b) A reinforcing rod (13) connecting the rear ends, a connecting rod (15) connecting the bent portions of both right-angled rods (12), and wheels provided at the front end of the U-shaped frame (11).
(17), (17) and casters (18, 18) provided on horizontal rods (16, 16) projecting rearward from the right-angled rods (12, 12).

A brake is applied on the connecting rod (15) of the bogie (1).
(8) is provided, the brake (8) is a brake petal (81)
The friction plate (82) is grounded by stepping on the trolley (1).
The brake is applied to the vehicle.

[0010] lifting frame (2) is, as shown in FIGS. 3 and 4, Ude杆toward the rear direction come to the rear end of the U-shaped bar with its both ends to the front (21) (22) (22) And the U-shaped frame (1
The arm rods (22) and (22) are pivotally supported on brackets (14) and (14) projecting upward from the upper end of 1) so as to be in a vertical plane with respect to the contact surface of the bogie wheel. It is rotatably supported.

A lifting drive (7) is connected to the lifting frame (2). The lifting drive device (7) according to the embodiment connects the connecting rod (15) of the bogie (1) and a substantially central portion of each of the lifting frames (2) with a hydraulic cylinder (72), and is connected to the hydraulic cylinder (72). The foot-operated hydraulic pump (71) is connected. By the stepping operation of the petal (74), the piston rod (73) can be protruded to rotate the elevating frame (2) and raise the hydraulic pump (71).
Turn the oil drain knob (75) connected to the piston rod (7
The working oil is discharged from the cylinder (72) by the load acting on (3), and the lifting frame (2) is lowered. Hydraulic cylinder (72)
Is a single-acting type, and when an upward force acts on the lifting frame (2), the piston rod (73) follows the movement of the lifting frame (2).

A reversing frame (4) is pivotally supported at a free end of the lifting frame (2) so as to be rotatable in the lifting frame (2) and in a plane perpendicular to the grounding surface of the wheels of the bogie . The reversing frame (4) comprises an arc-shaped arm (40) substantially half way around the body of the container (9), and a container gripper (5) provided at the center of the arm (40).
It is constituted by and. Both ends of the arm (40) are pivotal support shafts pivotally supported on both ends of the U-shaped frame (21) of the lifting frame (2).
(41) and (42) are connected to the rotation support shafts (41) and (42) so as to be integrally rotatable. The positions of the rotation support shafts (41) and (42) are on a line passing substantially through the axis of the container when the container (9) is gripped by the container gripper (5) described later, and the height of the container It is a little higher than 1/2 of.

[0013] The container gripper (5) is orthogonal to the plane including the entire arm (40), and is provided on the cylindrical column (51). And a hook (56) provided at the lower end of the cylindrical column (51).

The clamping means (54) comprises an upper pawl (52) and a lower pawl (53).
The upper edge of the container can be clamped by clamping the upper edge of the container with the rotation of the knob (50). The hook (56) is slidably fitted to the lower end of the cylindrical post (51) and urged by a spring (not shown) in a direction to fit in the cylindrical post (51).
With the container slightly lifted, push the handle (57) linked to the hook (56) downwards to
(56) can be lowered and the hook (56) can be hooked inside the lower edge of the container. At the position below the arm (40) on the cylindrical column (51), an arc-shaped contact plate (58) hitting the body of the container (9)
Are protruding.

Rotation support shafts (41) at both ends of the reversing frame (4)
The link mechanism (6) is connected to one of the rotation support shafts (42). As shown in FIG. 2, the link mechanism (6) includes a first link plate (61) projecting upward from the rotation support shaft (42), and an elevating frame slightly away from the rotation support shaft (42). On the U-shaped frame (21) of (2), the second link plate (6
2) and a third link plate (63) pivotally connected between upper ends of the first link plate (61) and the second link plate (62). Lower end and U-shaped frame of trolley (1)
The rear part of (11) is pivotally connected by a connecting rod (64).

When the lifting frame (2) is raised, the lower end of the second link plate (62) is pulled by the connecting rod (64), and the upper end of the second link plate (62) is rotated forward, and the third link plate (62) is rotated. The first link plate (61) linked to the second link plate (62) by (63)
Also rotate forward. As a result, the rotation support shaft (42) based on the first link plate (61) rotates counterclockwise to rotate the reversing frame.
(4) is rotated in the direction in which the container gripper (5) tilts forward.

A bifurcated holding arm (65) is protruded from the outside projection of the rotation support shaft (42). The lifting frame
In (2), a bracket (23) is provided near the holding arm (65), and a cylinder (31) having a built-in spring (3) is pivotally supported in a vertical plane so as to be rotatable. Piston rod that can press
(32) faces the holding arm (65). Piston rod
At the end of (32) orthogonal to the piston rod (32), the receiving shaft (33)
The receiving shaft (33) hits the lower surface of the base end of the holding arm (65), and the center of gravity of the cylinder (31) is moved to the bracket (23).
This prevents the cylinder (31) from rotating clockwise due to being further rearward.

As described above, by the action of the link mechanism (6) by raising the elevating frame (2), the rotation support shaft (42) rotates to rotate the reversing frame (4), and at the same time, the holding arm (65). ) Also starts to rotate clockwise, and when the container (9) supported by the reversing frame (4) assumes a substantially horizontal posture, the holding arm (6)
5) Piston rod (32) of cylinder (31) with built-in spring (3)
To apply resistance to the rotation of the reversing frame (4).

Therefore, a method of using the above-mentioned transport vehicle will be described. The carrier is inserted into the upright container (9), and the reversing frame (4) surrounds the body of the container (9) halfway. The upper edge of the container (9) is gripped by the clamping means (54) of the container gripper (5), and in this state, the lifting frame (2) is slightly raised by the stepping operation of the foot-operated hydraulic pump (71).

When the lifting frame (2) is raised, the reversing frame (4) is also raised, and the container (9) is slightly lifted. At this time, the container is tilted slightly forward, and the lower part hits the contact plate (58) on the container gripper (5), and the hook (56) enters between the lower surface of the container and the floor surface of the container gripper (5). A space to be created. Handle (5
7) By operation, hook (56) is hooked on the inner surface of the lower edge of container (9).

As described above, the container is held by the container gripper (5).
While holding the upper and lower ends of (9), operate the foot pedal (74) to completely lift the container (9) from the floor. Container (9)
Is in a low position and has a small forward lean and is in a stable state, and pushes the transporter to transport the container (9) to the discharge position of the contents. At the discharge position of the contents, the lifting frame (2) is raised and rotated by operating the foot pedal (74), and the container (9) is raised upward through the lifting frame (2). As the lifting frame (2) is raised, the reversing frame (4) is gradually rotated by the action of the link mechanism (6) to tilt the container (9) forward as described above.

When the container (9) is further inclined forward from the horizontal state,
Pressing arm (65) on rotation support shaft (42) of lifting frame (2)
Presses the spring (3) via the piston rod (32) of the cylinder (31) containing the spring (3), and the resistance of the rotation of the lifting frame (2) is generated.

If there is no resistance due to the spring (3), the container
When the center of gravity of the container (9) containing the contents is displaced forward of the rotation support shaft (42) due to the forward inclination of (9), the foot-operated hydraulic pump
Even if the stepping operation of (71) is stopped, the rotation support shaft (42) rotates clockwise due to the weight of the container (9), and the container (9) is suddenly inverted so that the discharge port faces directly below. It is a danger.

As described above, in order for the rotation support shaft (42) to rotate due to the weight of the container (9), the lifting frame () is required due to the relationship between the link mechanism (6) and the connecting rod (64) that stretches the link mechanism (6). 2)
It is necessary to be in a state where rising rotation of
The cylinder (72) that drives the lifting frame (2) upward is a single-acting type and satisfies this condition.

When the hydraulic pump (71) is stepped on, the spring
The container (9) is further tilted forward against (3) so that all the contents can be discharged. When the discharge of the contents is completed, the working oil in the cylinder (72) is drained by turning the oil drain knob (75) of the foot-operated hydraulic pump (71), and the lifting frame (2) is lowered. The reversing frame (4) descends while returning the container (9) in the upright direction in the opposite manner as described above, and grounds the container (9). As described above, the cart of the present invention can be inverted while lifting the container (9).
The contents of the container can be discharged in a short time. The present invention is not limited to the configuration of the above embodiment, and various modifications are possible within the scope of the claims.

[Brief description of the drawings]

FIG. 1 is a perspective view of a transport vehicle having started lifting containers.

FIG. 2 is a front view of the transport vehicle.

FIG. 3 is a plan view of the transport vehicle.

FIG. 4 is a left side view of the transport vehicle.

[Explanation of symbols]

 (1) Bogie (2) Lift frame (3) Spring (4) Reversing frame (5) Container gripper (6) Link mechanism (7) Lift drive (71) Foot-operated hydraulic pump

Claims (1)

(57) [Claims] A trolley (1) is mounted on a trolley (1) against a ground surface of wheels of the trolley.
Lifting and lowering drive device (7) that can be rotated vertically in a vertical plane
Lifting frame (2) connected to the
An arm (40) rotatably supported at the free end of the bogie wheel in a plane perpendicular to the grounding surface of the wheel of the bogie and substantially half way around the body of the cylindrical container (9), and a container gripper for supporting the upper and lower ends of the container A reversing frame (4) provided with (5), and a connecting rod (64) pivotally supported by the trolley (1), one end of which is connected to the rotation support shaft (42) of the arm (40).
The other end is pivotally connected to the link mechanism (6) for rotating the reversing frame (4) in accordance with the upward rotation of the lifting frame (2).
When the container (9) connected to the rotation support shaft (42) of the reversing frame (4) and supported by the reversing frame (4) is rotated to a substantially horizontal posture, the container is further tilted forward when the container is tilted forward. A reversing frame (4) is automatically and gradually tilted forward as the lifting frame (2) is rotated upward by a spring (3) acting to provide resistance to the rotation of the rotation support shaft (42). to become vessel reversing mechanism luck transportable vehicles equipped.