JPH0724380Y2 - Frame transport hook device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a frame transfer hook device that can be remotely operated to hang it on and off from a frame, and is particularly used for transfer of a vehicle body frame in a factory building. The present invention relates to a suitable frame transport hook device.

[Conventional technology]

In the manufacturing stage of automobiles, if the buildings of the painting factory and the assembly factory are separated from each other, the painted vehicle body frame must be moved to the assembly factory by a transportation vehicle.

In such a case, the painted frames that have conventionally been unloaded from the coating conveyor and stacked are picked up by the forks of a forklift truck while being stacked, and then transported to a transportation vehicle and loaded.

[Problems to be solved by the device]

By the way, the conventional reciprocating forklift loading as described above is not only poor in work efficiency, but in the case of a body frame of a small truck, for example, in the case of a vehicle body frame having a total length of about 6 m, four stages are stacked. Since the fork width of a forklift is only about 1 m, the support during conveyance by scooping becomes very unstable, which is a problem in terms of work safety.

Therefore, it is not unthinkable to use a crane-type transfer device to load a vehicle for transportation without using a forklift, but the body frame is generally ladder-shaped and has a complicated shape with protrusions protruding from each part. However, an effective hook device that can be smoothly undocked by remote control has not yet been devised.

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and an object thereof is to provide a frame transport hook device that can be automatically detached from the frame by remote operation. To do.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a hook device for carrying a frame according to the present invention comprises a moving member for carrying a frame, an operating wire hung from the moving member through a winch, and a pivot supported at the lower end of the wire. And a pair of bending type hook members each having a base end pivotally attached by the pivoting pin, and a pair of frame supporting members each having a lower end attached to a bent portion of the hook member and an upper end attached to the moving member. In order to rotate the pair of hook members having a chain and introduced into the inner peripheral portion of the frame via the operation wire with the lower end of the chain extended downward as a fulcrum, from the bent portion of the hook member. Also, a weight portion is provided on the side of the pivot pin, and the tip end portion of the hook that is swung by the weight portion turns downward from the inner peripheral side of the frame to the outer peripheral side. Nde is characterized in that bent end which can engage is formed.

[Action]

In the frame transport hook device of the present invention described above, the operation of the hook device is performed as follows.

First, the operation of engaging the hook device with the frame is as follows: (1) The wire is extended by the operation of the winch, and the hook member makes contact with and collides with the inside of the stacked frames to automatically correct the position. While descending, the chain reaches its fully extended state.

(2) When the extension of the wire is further continued, the hook member swivels and descends with the lower end of the chain as a fulcrum so as to widen the hook tip portion by the weight balance of its own weight portion, and the bent end of the hook tip portion is Lightly engage with the frame by passing from the inner side of the frame to the lower side and wrapping around.

(3) When the moving member is raised to raise the chain slightly, the hook tip grips the frame so that it scoops up from below and firmly engages with the frame.

Next, the detaching operation of the hook device from the frame is as follows: (1) Support the frame on the base, avoiding the hanging position,
When the chain is lowered slightly, the hook tips disengage from the frame and descend.

(2) When the operation wire is pulled up when the tip end portion of the hook descends by an appropriate distance, the entire width of the hook member is narrowed, and the inner circumference of the frame is reduced to a size capable of rising.

(3) Then, when the operation wire is further pulled up, the hook member rises on the inner circumference of the frame and eventually penetrates to the upper part of the frame.

〔Example〕

Next, an embodiment of the present invention will be described. FIG. 1 is a side view of a frame conveying hook device as one embodiment of the present invention, FIG. 2 is an operation explanatory view thereof, and FIG. At the time of storage, (b) shows before the expansion at the time of the lowest descent, (c) shows after the expansion, and (d) shows the time when the engagement is completed.

As shown in FIGS. 1 and 2, a frame carrying hook device according to an embodiment of the present invention includes a frame carrying moving member 11
The operation wire 3 hung from the moving member 11 via the winch 12, the pivot pin 5 supported at the lower end of the wire 3, and the proximal ends pivotally attached by the pivot pin 5. A pair of bending type hook members 1 and a pair of frame supporting chains 2 each having a lower end attached to a bent portion of the hook member 1 and an upper end attached to the moving member 11 are provided. In this embodiment, the wire 3 is connected to the hook member 1 via the connecting member 4 supporting the pivot pin 5, and the chain 2 is attached to the bent portion of the hook member 1 via the shackle 6. There is.

A waist is provided on the pivot pin 5 side of the bent portion of the hook member 1 so as to be heavier than the outside of the bent portion of the hook member 1, and the hook tip portion 7 is provided outside the bent portion.
Is provided. The hook tip portion 7 is composed of a base portion 8 extending from the bent portion, a bottom portion 9 bent and extended from the bent portion at a right angle, and a bent end 10 further bent and extended at a right angle.

The reference numeral 13 in FIG. 2 indicates an intermediate suspension chain, both ends of which are fixed to the chain 2 and a central portion of which guides a wire 3 slidably.

In the frame carrying hook device as one embodiment described above, the operation is performed as follows.

As shown in FIG. 2, from the moving member 11 positioned on the body frame F stacked with a spacer (not shown) interposed therebetween (see FIG. 2 (a)) (1) Operation of the winch 12 When the wire 3 is unwound by the hook, the hook member 1 is guided inside the body frame F while repeatedly contacting and colliding with them, and descends as shown in FIG. 2 (b) until the chain 2 reaches the fully extended state. It

(2) When the feeding of the wire 3 is further continued, the shackle 6 of the hook member 1 cannot be lowered due to the complete extension of the chain 2. Therefore, the hook member 1 that has been suspended by the wire 3 until now does not pull the shackle 6 As a fulcrum, the weight is balanced by the weight portion so that the hook tip 7 is swung down so as to be widened, and the bent end 10 of the hook tip 7 is passed from the inner peripheral side of the vehicle body frame F downward to the outer peripheral side, 8 engages with the inner peripheral side of the body frame F.

(3) Here, when the chain 2 is slightly lifted by the moving member 11 being lifted, the hook tip 7 is moved to the vehicle body frame F.
Is grasped so as to be picked up from below, and its base portion 8, bottom portion 9 and bent end 10 are firmly engaged with the frame.

In this state, the moving member 11 is moved to carry the body frame F to the carrying vehicle.

Next, the detaching operation of the hook member 1 from the vehicle body frame F when lowering the vehicle body frame F to the transportation vehicle side is as follows: (1) Support the vehicle body frame F on the platform on the transportation vehicle, avoiding its hanging position. Then, when the hook tip portion 7 is slightly lowered from the state shown in FIG. 2D, the hook tip portion 7 is disengaged from the vehicle body frame F and lowered.

(2) When the hook tip 7 descends by an appropriate distance,
When the wire 3 is pulled up, the entire width of the hook member 1 is narrowed, and the inside of the vehicle body frame F is reduced to a size that allows it to rise, as shown in FIG. 2 (b).

(3) Then, when the wire 3 is further pulled up, the hook member 1 rises inside the vehicle body frame, and eventually penetrates outside the upper portion of the vehicle body frame F.

In this state, the suspending chain 13 is pulled up by the ascending movement of the connecting member 4 to suspend the intermediate position of the chain 2 and fold and support the chain 2 in an orderly manner as shown in FIG. 2 (a).

In such a state, the moving member 11 is moved back to the original position and ready for the next lifting and transporting of the body frame F.

According to the frame transport hook device as one embodiment of the present invention, the hook member 1 is engaged from the inside of the frame F,
Since the chain 2 is also located inside the frame F, the frame F serves as a guide when the hook member 1 is lowered, and the chain 2 prevents the frame F from collapsing when the frame F is lifted. Play a role. Therefore, the hook member 1 can be detached and attached by remote control, and the frame F can be lifted in a stacked state.

Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment. Other means can be used that function similarly to these, especially for chains and wires.

[Effect of device]

As described above in detail, according to the frame carrying hook device of the present invention, the following effects and advantages can be obtained.

(1) Since the frames can be safely hoisted and conveyed in a stacked state, the number of stacked layers can be increased to shorten the loading and unloading time.

(2) Since the hook can be hung and removed by remote control at a place away from the frame, work is safe.

(3) Since it is a transfer device that does not project outside the frame, it can be used in a restricted narrow space.

[Brief description of drawings]

FIG. 1 is a side view of a frame carrying hook device as one embodiment of the present invention, and FIG. 2 is an operation explanatory view thereof.
(A) shows the state when the hook member is stored, (b) shows the state before the expansion at the time of lowering, (c) shows the state after the expansion, and (d) shows the time when the engagement is completed. 1 ... Hook member, 2 ... Chain, 3 ... Wire, 4
...... Connecting member, 5 ...... Pivot pin, 6 ...... Shackle, 7
...... Hook tip part, 8 ...... base part, 9 ...... bottom part, 10 …… bending end, 11 …… moving member, 12 …… winch, 13 …… swing chain.

Claims (1)

[Scope of utility model registration request] 1. A frame carrying moving member, an operating wire hung from the moving member via a winch, a pivot pin supported at the lower end of the wire, and a pivot end of each pivot end. A pair of bent type hook members attached to each other, and a pair of frame supporting chains each having a lower end attached to the bent portion of the hook member and an upper end attached to the moving member, and the frame-like chain of the frame via the operation wire. In order to rotate the pair of hook members introduced into the inner peripheral portion with the lower end of the chain extended downward as a fulcrum, a weight portion is provided closer to the pivot pin than the bent portion of the hook member, In addition, a bent end that can be engaged with the hook tip portion that is swung by the weight portion by passing from a lower side of the inner peripheral side of the frame to a lower side of the outer peripheral side is formed. That, frame transport hook apparatus.