JP2019010686A - Hand part for holding baggage - Google Patents

Abstract

To enable a hand part for holding baggage to properly hold bag-like baggage having an easily changeable shape.SOLUTION: A hand part for holding baggage includes: a lower part 22 which is inserted below the baggage to support the baggage; an intermediate part 28 extending upward from a portion of the lower part 22, which is opposite to the side inserted below the baggage, and located at the lateral outer side of the baggage; and an upper part 29 extending from an upper part of the intermediate part 28 to the lower part 22 side, connected with a hanging mechanism, and located above the baggage. Handle parts 31, 32 for separating the lower part 22 from the lower side of the baggage to the lateral outer side are provided at a portion of the upper part 29 located below a portion 30 with which the hanging mechanism is connected or the intermediate part 28.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a hand unit for holding a load, which is used to suspend an assist device worn by an operator, a winch supported on a ceiling of a building, and the like.

  As an assist device used by being worn by an operator, there is one disclosed in Patent Document 1. In Patent Literature 1, an arm portion is extended to the front side from a main body portion attached to an operator, and a hand portion for holding a load is attached to a wire (corresponding to a hanging mechanism) extended downward from the arm portion. It is connected.

  An elevating device for winding and unwinding the wire is provided in the main body, and a manual elevating operation unit for operating the elevating device is provided in the hand unit. Thus, the operator holds the load with the hand part while holding the hand part by hand, and can operate the manual lifting operation part with the hand holding the hand part.

JP, 2015-182832, A

In Patent Document 1, a hard case such as a beer case is assumed, and it is assumed that the hand portion holds the luggage by inserting the lower side portion of the hand portion into the opening of the lateral wall portion of the luggage. ing.
On the other hand, there is a bag-like baggage such as a rice bag or a cement bag, which is easily changed in shape such as cloth, paper, vinyl, etc., and the shape is likely to change in this way. It is difficult to hold the bag-shaped luggage with the hand portion of Patent Document 1.

  SUMMARY OF THE INVENTION An object of the present invention is to appropriately hold a bag-shaped baggage whose shape tends to change in a baggage holding hand unit.

The hand portion for holding luggage according to the present invention is:
A load holding hand portion that is connected to a suspension mechanism and suspended.
A lower part that is placed under the luggage and supports the luggage;
An intermediate part that is extended upward from a part opposite to the insertion side of the lower part of the luggage in the lower part and is located on the lateral outer side of the luggage,
An upper part that extends from the upper part of the intermediate part to the lower side part, is connected to the suspension mechanism, and is located on the upper side of the load;
A handle portion for separating the lower side portion from the lower side to the lateral outer side of the load is provided at a lower portion of the upper portion than a portion to which the suspension mechanism is connected, or at the intermediate portion. ing.

  When holding a bag-shaped baggage whose shape is easy to change with the hand part of the present invention, the lower part of the hand part is positioned under the baggage by placing the lower part of the hand part under the baggage. The intermediate part of the hand part is located on the lateral outer side of the luggage, and the upper part of the hand part is located on the upper side of the luggage.

In the above-described state, when the weight of the load is applied to the lower part of the hand part, the part to which the suspension mechanism on the upper part of the hand part is connected is located above the lower part of the hand part. Therefore, it is difficult to generate a moment to move the hand part in the direction away from the baggage laterally outward from the part where the suspension mechanism is connected to the upper part of the hand part (even if the moment is generated, the moment is small) Moment).
As a result, the lower portion of the hand portion does not move laterally outward from the lower portion of the load due to friction between the lower portion of the hand portion and the load, and the load is stably held by the hand portion.

  After holding the baggage by the hand unit, when removing the hand unit from the baggage and placing the baggage on the floor, place the lower part of the hand unit and the baggage on the floor, etc. Even if it is going to be extracted from the lower side, the lower part of the hand part may be sandwiched between the luggage and the floor, making it difficult to extract the lower part of the hand part from the lower side of the luggage. In this case, with the hand unit and the luggage positioned slightly above the floor or the like, the hand unit may be removed from the luggage and the luggage dropped onto the floor or the like.

According to the present invention, the handle portion is provided in the lower portion or the intermediate portion of the upper portion of the hand portion with respect to the portion to which the suspension mechanism is connected.
As described above, when removing the hand part from the luggage with the baggage held by the hand part positioned slightly above the floor etc., the hand part can be moved laterally outside with the handle part of the hand part. For example, the hand portion swings in a direction away from the lateral outer side of the load with the portion where the suspension mechanism is connected to the upper portion of the hand portion as a fulcrum, and the hand portion can be removed from the load without difficulty.

  According to the present invention, since the handle portion of the hand portion is not provided on the lower side portion, for example, when holding a load placed on the floor or the like, when placing the lower portion of the hand portion under the load The handle part of the hand part is not disturbed.

  As described above, according to the present invention, it is difficult to generate a moment to move the hand part in the direction away from the lateral side to the lateral outside of the load, and the hand part swings in the direction away from the lateral side of the luggage. Therefore, even if it is a bag-like baggage whose shape is easy to change, a hand part that can stably hold the baggage and can be removed from the baggage easily can be obtained.

In the present invention,
It is preferable that the width of the lower side portion is set larger than the width of the intermediate portion.

  According to the present invention, since the width of the lower part of the hand part is relatively large, the luggage is stably supported by the lower part of the hand part, and the luggage is stably held by the hand part. can do.

In the present invention,
The width of the tip of the insertion side to the lower side of the load at the lower side is smaller than the width of the portion of the lower side opposite to the insertion side to the lower side of the load. It is preferable that the side portion is tapered in plan view.

  According to the present invention, for example, when holding a load placed on a floor or the like, the lower side portion of the hand portion can be easily put under the load with little resistance.

In the present invention,
It is preferable that the lower side portion is formed in a frame shape in which bars are combined.

  According to the present invention, when a bag-shaped baggage whose shape is easy to change is held by the hand part, the bar part on the lower side of the hand part bites into the lower side of the baggage. It becomes difficult to come off and the luggage can be stably held by the hand portion.

It is a right view in a state where an operator wears an assist device. It is a rear view in a state where an operator wears an assist device. It is a perspective view of an assist instrument. It is a perspective view of a hand part. It is a rear view which shows the state which hold | maintains a load with a hand part. It is a rear view which shows the state which hold | maintained and lifted the load by the hand part. It is a rear view which shows the state which removes a hand part from a load. In 1st another form of implementation of invention, it is a perspective view of a hand part. In 1st another form of implementation of invention, it is a side view of a hand part. In the 2nd another form of implementation of invention, it is a perspective view of a hand part. In the 2nd other form of implementation of invention, it is a side view of a hand part. In the 4th another form of implementation of invention, it is a perspective view of a hand part. In the 4th another form of implementation of invention, it is a perspective view of a hand part. In 4th another form of implementation of invention, it is a side view which shows the state which hold | maintained and lifted the load with the hand part. In the 4th another form of implementation of invention, it is a rear view which shows the state which hold | maintained and lifted the load with the hand part. In the 4th another form of implementation of invention, it is a rear view which shows the state which hold | maintained and lifted the load with the hand part.

FIG. 1 to FIG. 16 show a state in which a load holding hand portion 15 of the present invention is attached to a hand portion 20 provided in an assist device in an assist device worn and used by an operator. Yes.
The front-rear direction and the left-right direction in the embodiment of the present invention are described as follows unless otherwise specified. When the operator wears the assist device, the front side is “front”, the rear side is “rear”, the right side is “right”, and the left side is “left” when viewed from the operator.

(Overall configuration and main body of assist device)
As shown in FIGS. 1, 2, and 3, the assist device includes a main body 1 that is attached to the back of the operator, and right and left arms that extend upward from the upper portion of the main body 1 and extend forward. A right and left leg action part 3 provided at the lower part of the part 2 and the main body part 1 is provided, and an attachment belt 4 for attaching to an operator and right and left shoulder belts 5 are provided.

  As shown in FIGS. 1, 2, and 3, the main body 1 has a frame shape including a right and left vertical frame 6, a support plate 7 connected across the right and left vertical frames 6, and the like. Yes. An attachment belt 4 is attached to the leg action part 3, and a shoulder belt 5 is attached to the upper part of the front surface of the support plate 7. A control device 8 is attached to the upper and lower intermediate portions of the rear surface of the support plate 7, and a battery 9 is attached to the lower portion of the rear surface of the support plate 7.

  As shown in FIG. 1 and FIG. 2, the arm portion (shoulder portion) of the worker is put on the shoulder belt 5, and the attachment belt 4 is wrapped around the waist portion of the worker and fixed, so that the main body portion is attached to the back portion of the worker. 1 is attached.

  As shown in FIGS. 1 and 2, the weight of the assist device and the load B (see FIGS. 5, 6, and 7) is mainly applied to the operator's waist through the attachment belt 4. The weight is stably supported by the waist of the operator. The right and left shoulder belts 5 mainly exhibit a function of stopping the state in which the main body 1 is about to move backward from the back of the operator.

(Right and left leg action parts)
As shown in FIGS. 1, 2, and 3, the leg action unit 3 includes a base 10, a transmission case 11, an operation arm 12, a leg belt 13, and the like. A base portion 10 is supported at the lower portion of the support plate 7 so as to be slidable in the left-right direction, and a transmission case 11 is connected to an outer end portion of the base portion 10 in a forward direction.

  As shown in FIGS. 1, 2, and 3, an operation arm 12 is swingably supported around a horizontal axis P <b> 1 in the left-right direction at the front portion of the transmission case 11, and a wide belt-like leg belt 13 is formed. It is attached to the operation arm 12. A transmission mechanism (not shown) constituted by a plurality of spur gears is provided in the transmission case 11, and an electric motor (not shown) is provided in the base 10, and the transmission mechanism is provided by the electric motor. The operating arm 12 is driven to swing around the horizontal axis P1.

When attaching the main body 1 to the operator's back, the right and left leg action units 3 (base 10) are supported together with the attachment belt 4 when the operator wraps and fixes the attachment belt 4 around the waist. It can move in the left-right direction along the plate 7.
The distance between the right and left leg action portions 3 is determined according to how the attachment belt 4 is wound around the waist, so that the positions of the right and left leg action portions 3 are determined by the attachment belt 4. It is done.

  As shown in FIGS. 1 and 2, the operator wraps the leg belt 13 around the thigh and attaches the leg belt 13 to the thigh with a hook-and-loop fastener (not shown) (magic tape (registered trademark)). . In a state in which the worker wears the assist device, the right leg operating unit 3 (transmission case 11) is positioned on the right side of the operator's waist, and the left leg operating unit 3 (transmission case 11) is positioned on the left side of the operator's waist. ) Is located.

(Right and left arm)
As shown in FIGS. 1, 2, and 3, the upper portions of the right and left vertical frames 6 extend obliquely upward and extend obliquely forward beyond the right and left shoulders of the operator, It is the left arm 2. The right and left support members 16 are attached to the distal end portion of the arm portion 2, and right and left pulleys (not shown) are rotatably supported by the support member 16.

  As shown in FIGS. 1, 2, and 3, an elevating device 17 is attached to the upper portion of the rear surface of the support plate 7. From the elevating device 17, two right wires 18 and 19 (corresponding to a hanging mechanism), In addition, two wires 18 and 19 (corresponding to a suspension mechanism) on the left are extended.

  As shown in FIGS. 1, 2, and 3, the outer support portion 21 is connected to the upper portion of the support plate 7, and the outer support portion 16 a is provided on the support member 16. The ends of the outer wires 18, 19 are connected to the outer support portion 21 and the outer support portion 16 a of the support member 16, and the inner wires 18, 19 are connected to the lifting device 17. .

As shown in FIGS. 1, 2 and 3, the inner wires 18a and 19a of the two right wires 18 and 19 are hung on the pulley of the right support member 16 and extended downward, and the two right wires The right hand portion 20 is connected to the extended ends of the inner wires 18 and 19 of the inner wires 18 and 19.
Inner portions 18a and 19a of the two left wires 18 and 19 are hung on the pulley of the left support member 16 and extended downward, and the inner portions 18a and 19a of the two left wires 18 and 19 are extended. The left hand unit 20 is connected to the extended end.

(Hand part provided in assist device)
As shown in FIGS. 2 and 4, the right and left hand portions 20 are formed by hooking a plate material into a hook shape, and extend horizontally from the upside down side portion 20a and from the bottom of the side portion 20a. A lower side portion 20b and an upper side portion 20c extending laterally from the upper portion of the lateral side portion 20a are provided.

  As shown in FIGS. 1 and 2, the right and left hand portions 20 have a symmetrical shape. A raising operation switch 23 is attached to the upper part 20 c of the right hand part 20, and a lowering operation switch 24 is attached to the upper part 20 c of the left hand part 20.

  The hand unit 20 is suitable for holding a box-shaped luggage B such as a beer case or a fruit box. By engaging the right hand portion 20 (lower side portion 20b) with the right side portion of the load B and engaging the left hand portion 20 (lower side portion 20b) with the left side portion of the load B, the right and left The baggage B is held by the hand unit 20.

  As shown in FIGS. 1, 2, and 3, the right and left harnesses 14 connected to the control device 8 enter inside the right and left arm units 2, pass through the inside of the arm unit 2, and It extends to the upper end. The harness 14 comes out from the opening at the upper end of the right and left arm portions 2 and extends downward, the right harness 14 is connected to the raising operation switch 23, and the left harness 14 is lowered. 24.

  As shown in FIG. 1 and FIG. 2, the worker holds the right hand part 20 with the right hand and the left hand part 20 with the left hand while the operator is wearing the assisting device. The ascending operation switch 23 and the descending operation switch 24 are pushed by the thumbs of the right hand and the left hand.

  As shown in FIGS. 1 and 2, the ascending operation switch 23 and the descending operation switch 24 are returnable. When the ascending operation switch 23 and the descending operation switch 24 are pressed, an operation signal is output from the ascending operation switch 23 and the descending operation switch 24. When the pushing operation of the ascending operation switch 23 and the descending operation switch 24 is stopped, the ascending operation switch 23 and the descending operation switch 24 are stopped. The operation signals of the operation switch 23 and the lower operation switch 24 are stopped.

(lift device)
As shown in FIGS. 1 and 2, the lifting device 17 is connected to the support plate 7. A vertically extending transmission case 25 that houses a transmission mechanism (not shown), a support case 26 that is laterally coupled to the upper portion of the transmission case 25, an electric motor 27 that is laterally coupled to the lower portion of the transmission case 25, and a support case 26 The lifting device 17 is provided with four rotating bodies (not shown) that are rotatable around a laterally oriented axis.

  As shown in FIGS. 1 and 2, the ends of the outer wires 18, 19 b of the right and left wires 18, 19 are connected to the outer support portion 21, and the inner wires 18, 19 of the inner wires 18 a, 19 a are connected to the support case 26. It is connected to each of the four internal rotating bodies.

  As shown in FIGS. 1 and 2, the electric motor 27 is operated by the control device 8. The power of the electric motor 27 is transmitted to the rotating body inside the support case 26 via the transmission mechanism inside the transmission case 25, and the rotating body is rotationally driven to the winding side and the feeding side.

As shown in FIGS. 1, 2, and 3, when the raising operation switch 23 is pushed, the electric motor 27 rotates the rotating body to the winding side, and the inner wires 18, 19 a of the wires 18, 19 are wound on the rotating body. As a result, the hand unit 20 rises.
When the lowering operation switch 24 is pushed, the electric motor 27 rotates the rotating body toward the feeding side, the inners 18a and 19a of the wires 18 and 19 are drawn out from the rotating body, and the hand unit 20 is lowered.

  When the push operation of the ascending operation switch 23 and the descending operation switch 24 is stopped, the electric motor 27 is stopped. The electric motor 27 is provided with an electromagnetic brake (not shown). The electromagnetic brake is automatically released when the electric motor 27 is operated, and the electromagnetic brake is automatically braked when the electric motor 27 is stopped or not energized. It becomes a state.

(Hand part for holding luggage)
As shown in FIGS. 1, 2, and 4, the right and left hand portions 15 are formed in a frame shape by bending a round pipe-shaped bar, and have a lower side portion 22, an intermediate portion 28, and an upper portion 29. And has a symmetrical shape.

  As shown in FIG. 4, one bar is bent into a triangular shape in plan view, and a part of the lower side portion 22 is formed. The width W1 of the tip 22a on the insertion side to the lower side of the load B in the lower portion 22 is smaller than the width W2 of the portion 22b on the opposite side to the insertion side to the lower side of the load B in the lower portion 22. Thus, the lower side portion 22 has a tapered shape in plan view.

As shown in FIG. 4, one bar is bent in an inverted U shape in a side view (see FIG. 1) and bent in an L shape in a front view (see FIG. 2), and the lower end of the bar The portion is connected to the tip portion 22 a and the portion 22 b of the lower side portion 22. A portion 22 c connected to the tip 22 a and the portion 22 b of the lower portion 22 in the bar is a part of the lower portion 22.
The lower side portion 22 includes a front end portion 22a and portions 22b and 22c, and is formed in a frame shape from a bar.

  As shown in FIGS. 2 and 4, an intermediate portion 28 extends upward from a portion 22 b of the lower side portion 22 opposite to the insertion side of the lower side of the load B, so A positioned intermediate portion 28 is formed. From the upper part of the intermediate part 28, the upper part 29 extends obliquely upward on the lower part 22 side, and the upper part 29 located on the upper side of the load B is formed.

As shown in FIG. 4, a connection portion 30 (corresponding to a portion to which the suspension mechanism is connected in the upper portion) is provided across the upper end portion of the upper portion 29.
As shown in FIGS. 1 and 4, the handle portion 31 is located on the lower portion of the upper portion 29 (corresponding to the lower portion of the upper portion than the portion to which the suspension mechanism is connected). It is connected horizontally. A handle portion 32 is laterally coupled to an upper portion of the intermediate portion 28 (or a connection portion between the intermediate portion 28 and the upper portion 29).

  As shown in FIGS. 1 and 4, the width W2 (lower side) of the portion 22b on the opposite side of the lower side portion 22 from the insertion side of the load B is lower than the width W3 of the intermediate portion 28 (upper portion 29). The width of the side portion) is set to be large. The connecting portion 30 and the handle portions 31 and 32 are reinforcing members for the intermediate portion 28 and the upper portion 29.

  As shown in FIGS. 1, 2, and 4, when the connection portion 30 of the hand portion 15 is hung on the lower side portion 20 b of the hand portion 20, the hand portion 15 is attached to the hand portion 20. The hand portion 15 is connected to the inner portions 18 a and 19 a of the wires 18 and 19 via the hand portion 20 and is suspended.

(Holding bag-shaped luggage whose shape is easy to change)
For example, there is a bag-like baggage B whose shape is easy to change, such as a rice bag, a cement bag, or the like, which is made of cloth, paper, vinyl, etc., and such a bag-like baggage whose shape is easy to change. The hand unit 15 is suitable for holding B.
Hereinafter, holding of the bag-like luggage B by the right and left hand portions 15 will be described.

As shown in FIG. 5, it is assumed that luggage B is placed on a pallet or a floor.
When the lower side portion 22 of the right hand portion 15 is put under the load B, the operator holds the handle portion 31 (or the handle portion 32) of the right hand portion 15 with the right hand and the load B with the left hand. The right portion of the right hand portion 15 is slightly lifted, the lower side portion 22 of the right hand portion 15 is placed under the load B, and the intermediate portion 28 of the right hand portion 15 is positioned (contacted) laterally outside the load B. .

  When the lower part 22 of the left hand part 15 is put under the luggage B, the same operation as described above is performed with the right hand and the left hand reversed, and after this, the right hand part 20 is held with the right hand. The left hand part 20 is held by the left hand.

As a method different from the above, there is the following method.
While holding the right hand part 20 with the right hand, the right hand part 15 is positioned laterally outside the luggage B, and the right hand part 15 (or the handle part 32) of the right hand part 15 is stepped on with the right leg. Then, the right hand portion 15 is swung to the load B side, the lower portion 22 of the right hand portion 15 is placed under the load B, and the middle portion 28 of the right hand portion 15 is loaded. Position (contact) B laterally outside.

  When the lower side portion 22 of the left hand portion 15 is put under the luggage B, the left hand portion 20 is held by the left hand, while the left hand portion 15 (or the handle portion 32) of the left hand portion 15 is held by the left leg. ) To perform the same operation as described above.

  In this case, as shown in FIG. 4, since the lower part 22 of the hand part 15 is tapered in plan view, the lower part 22 of the hand part 15 is easily put under the load B with little resistance. be able to.

  When the hand unit 20 is lifted as described in the above-mentioned (elevating device), the lower side portion 22 of the hand portion 15 is located on the lower side of the baggage B as shown in FIG. With the intermediate portion 28 of the hand portion 15 positioned and the upper portion 29 of the hand portion 15 positioned on the upper side of the load B, it can be lifted while holding the load B by the hand portion 15.

In the state shown in FIG. 6, when the weight of the load B is applied to the lower portion 22 on the hand portion 15, the connection portion 30 of the hand portion 15 is positioned above the lower portion 22 of the hand portion 15. Therefore, it is difficult to generate a moment to move the hand portion 15 in the direction away from the baggage B laterally outward with the connection portion 30 of the hand portion 15 as a fulcrum (even if the moment is generated, it is a small moment).
Thus, the lower portion 22 of the hand portion 15 does not move laterally outward from the lower side of the load B due to friction between the lower portion 22 of the hand portion 15 and the load B. It is held stably.

As shown in FIGS. 1 and 4, the width W2 of the lower side portion 22 (part 22b) of the hand portion 15 is relatively large. Is held stably.
Since the lower portion 22 of the hand portion 15 has a frame shape made of bar material, the bar material of the lower side portion 22 of the hand portion 15 bites into the lower side of the load B, and the hand portion 15 comes off from the load B. It becomes difficult to hold the load B stably by the hand portion 15.

  As shown in FIG. 5 and FIG. 6, when holding the luggage B by the hand section 15 and then removing the hand section 15 from the luggage B and placing the luggage B on the floor or the like, as shown in FIG. And the luggage B is positioned slightly above the floor.

  Next, as shown in FIG. 7, the operator holds the handle portion 31 (or the handle portion 32) (see FIGS. 1 and 4) of the hand portion 15 and moves the hand portion 15 laterally outward. As a result, the hand portion 15 can be swung away from the baggage B with the connecting portion 30 of the hand portion 15 as a fulcrum, so that the hand portion 15 can be removed from the baggage B without difficulty. Is dropped on the floor.

(Working form of assist device)
For example, when a load B placed on a pallet or floor is placed on a high shelf or a truck bed, the operator squats down and holds the load B on the pallet or floor with his hand and extends his hand down. It is assumed that the user stands up while holding the bag, lifts the baggage B by hand, and places the baggage B on a high shelf or truck bed.

In the case of a box-shaped baggage B such as a beer case or a fruit box, the hand unit 15 is detached from the hand unit 20 and the baggage B is held by the hand unit 20.
When holding a bag-shaped luggage B whose shape is easy to change, the hand section 15 is attached to the hand section 20, and the luggage B is held by the hand section 15.

  In a state where the worker wearing the assisting device performs the above-described work, the control device 8 controls the right and left leg action units 3 and the lifting device 17 based on the pressing operation of the lifting operation switch 23 and the lowering operation switch 24. The state in which will operate will be described.

  As shown in FIGS. 1 and 2, the electric motor 27 of the elevating device 17 is operated unless the operator pushes both the ascending operation switch 23 and the descending operation switch 24 in a state where the operator wears the assist device. Stops, and the electric motors of the right and left leg action portions 3 are stopped (freely rotated).

  When the worker walks, or when the worker bends the knee and drops the waist (when squatting), the operation arm 12 swings so as to follow the thigh of the worker. Will not be disturbed.

  When the worker crouches and holds the pallet or the floor load B, when the worker pushes the lowering operation switch 24, the electric motor 27 is actuated to the feeding side in the lifting device 17, and the inners 18a and 19a of the wires 18 and 19 are moved. Is extended, and the hand portions 15 and 20 are lowered.

  When the push operation of the lowering operation switch 24 is stopped, the electric motor 27 is stopped and the hand portions 15 and 20 are stopped. Therefore, the operator holds the load B with the hand portions 15 and 20 (the shape in the previous section is See Retaining bag-like baggage)

As described in the previous section (elevating device), the electric motor 27 is provided with an electromagnetic brake (not shown), and the electromagnetic brake automatically enters a braking state when the electric motor 27 is stopped or not energized. .
In a state where the electric motor 27 is stopped, the inner portions 18a and 19a of the wires 18 and 19 are not drawn out from the lifting device 17, and even if the weight of the load B is applied to the hand portions 15 and 20 as will be described later, 15 and 20 never descend.

  Next, the worker lifts the load B by standing up while holding the load B with the hand portions 15 and 20. When the operator pushes the lifting operation switch 23, the operating arm 12 is driven downward in the leg action unit 3, and the operator's thigh is operated downward, thereby assisting the worker to stand up. .

  After the operator has started up in a state in which the operator presses the ascending operation switch 23, when the leg action unit 3 detects that the operating arm 12 has reached a position substantially directly below, it is determined that the operator has completely started up. Thus, the electric motor of the leg action unit 3 is in a stopped state (free rotation state).

  Next, in the lifting / lowering device 17, the electric motor 27 operates on the winding side, the inner portions 18a and 19a of the wires 18 and 19 are wound, and the hand portions 15 and 20 are raised. When the hand units 15 and 20 are raised to the desired positions, the push operation of the ascent operation switch 23 is stopped, whereby the electric motor 27 is stopped and the hand units 15 and 20 are stopped.

  The worker walks to a high shelf on which the luggage B is to be placed, a truck bed, or the like. When the worker arrives at a high shelf, a truck bed, etc., and the operator pushes the lowering operation switch 24, the electric motor 27 is actuated to the feeding side in the elevating device 17, and the inner wires 18a, 19a, 19a is extended and the hand parts 15 and 20 are lowered.

  The operator places the load B on a high shelf, a truck bed, etc., and removes the hand portions 15 and 20 from the load B (see (holding a bag-shaped load whose shape is easy to change) in the previous section). When the luggage B is placed on a high shelf, a truck bed or the like, the initial state is restored, and the same operation is performed on the next luggage B.

(First embodiment of the invention)
In the above (form for carrying out invention), you may comprise the hand part 15 as shown in FIG.8 and FIG.9.

  As shown in FIGS. 8 and 9, the lower part 22, the intermediate part 28, and the upper part 29 are formed by bending the bar. The intermediate portion 28 and the upper portion 29 are inclined so that the interval between the intermediate portion 28 and the upper portion 29 becomes narrower toward the upper side, and a horizontally long loop-shaped connection portion 30 is connected to the upper end portion of the upper portion 29. .

  A handle portion 31 is laterally coupled to a lower portion of the connection portion 30 in the upper portion 29. A channel-shaped handle portion 32 is connected to the upper portion of the intermediate portion 28 (or the connection portion between the intermediate portion 28 and the upper portion 29) in a lateral direction toward the opposite side to the lower portion 22 in a plan view. .

The lower side portion 22 is formed in an arc shape in plan view, and the lower side portion 22 is tapered in plan view. The lateral portion 33 is connected to the lower side portion 22 so that the lower side portion 22 is reinforced.
Since the interval between the intermediate part 28 and the upper part 29 is narrower toward the upper side, the width W2 of the lower part 22 is set to be larger than the width of the intermediate part 28 (upper part 29).

  By hanging the connection part 30 of the hand part 15 on the lower side part 20b of the hand part 20, the hand part 15 is attached to the hand part 20, and the hand part 15 is wired via the hand part 20. 18 and 19 are connected to the inner 18a and 19a and are suspended.

(Second embodiment of the invention)
In the above (form for carrying out invention), you may comprise the hand part 15 as shown in FIG.10 and FIG.11.

  As shown in FIGS. 10 and 11, the lower part 22, the intermediate part 28 and the upper part 29 are formed by bending the plate material. The lower part 22, the intermediate part 28 and the upper part 29 have the same width, and a connection part 30, which is a horizontally long slot, is opened at the upper end part of the upper part 29.

  The lower side portion 22 is formed in an arc shape in plan view, and the lower side portion 22 is tapered in plan view. A channel-shaped handle 31 in a plan view is connected to the upper part of the intermediate part 28 (or the connecting part between the intermediate part 28 and the upper part 29) in a lateral direction toward the side opposite to the lower part 22. .

  By hanging the connection part 30 of the hand part 15 on the lower side part 20b of the hand part 20, the hand part 15 is attached to the hand part 20, and the hand part 15 is wired via the hand part 20. 18 and 19 are connected to the inner 18a and 19a and are suspended.

(Third Another Embodiment of the Invention)
In the above-mentioned (Mode for Carrying Out the Invention) (First Alternative Embodiment of the Invention) (Second Alternative Embodiment of the Invention), the connecting portion 30 of the hand portion 15 is connected to the lower side portion 20b of the hand portion 20. Instead of hanging, the connecting portion 30 of the hand portion 15 may be coupled by bolts, welding, or the like so that it cannot swing to the lower side portion 20b of the hand portion 20.

If comprised as mentioned above, the operator can change the direction of the hand part 15 together by changing the direction of the hand part 20 with the hand part 20 held.
Thereby, when holding the load B placed on the pallet or the floor, the operator holds the hand portion 20 and positions the lower side portion 22 of the hand portion 15 on the lateral outer side of the load B, so that the hand portion 20 The lower part 22 of the hand part 15 can be put under the luggage B while operating with the handle.

(Fourth embodiment of the invention)
In the above-mentioned (Mode for Carrying Out the Invention) (First Alternative Embodiment of the Invention) (Second Alternative Embodiment of the Invention), the hand portion 15 may be configured as shown in FIGS. Good.

8 to 11, the connecting portion 30 is abolished. As shown in FIGS. 12 and 13, the string-like portion 34 (in the upper portion) extends over the upper portion 29 of the two sets of hand portions 15. Equivalent to the part to which the suspension mechanism is connected).
The string portion 34 is a string or rope knitted with a thread, a metal chain, a metal wire cable, a narrow synthetic resin belt or the like, and has flexibility to bend freely, but is extended. It can't be done.

The usage of the hand unit 15 shown in FIGS. 12 and 13 will be described with reference to the hand unit 15 shown in FIG. 13. As shown in FIGS. The string-like part 34 of the hand part 15 is hung, and the string-like parts 34 of the two sets of hand parts 15 are hung on the lower side 20b of the left hand part 20.
As a result, the right part of the load B is held from the front-rear direction by the two sets of hand parts 15, and the left part of the load B is held from the front-rear direction by the two sets of hand parts 15.

The string-like portion 34 may be connected across the upper portion 29 of the three sets of hand portions 15.
According to this configuration, as shown in FIG. 16, the right portion of the luggage B is held from the front and rear directions by the two sets of hand portions 15 and is held from the left and right directions by the one set of hand portions 15. The left part of the luggage B is held in the front-rear direction by the two sets of hand parts 15 and held in the left-right direction by the one set of hand parts 15.

(Fifth embodiment of the invention)
4, 8, and 9, instead of a round pipe-shaped bar, a square pipe-shaped bar, a solid bar with a round cross section, or a solid bar with a square cross section For example, the hand portion 15 may be formed.

  The hand portion 15 shown in FIGS. 1 to 9 and 12 may be provided with a handle portion 31 and the handle portion 32 may be eliminated. Conversely, the handle portion 31 may be eliminated and the handle portion 32 may be provided.

In the assist device, the right and left arm portions 2 may be eliminated and a single arm portion 2 may be provided.
According to this configuration, two wires 18 are extended from one arm portion 2, the right hand portion 20 is connected to one of the two wires 18, and the left hand is connected to the other of the two wires 18. The unit 20 is connected. Alternatively, one wire 18 is extended from one arm portion 2, the end portion of one wire 18 is bifurcated, the right hand portion 20 is connected to one of the branch portions, and the branch portion The left hand unit 20 is connected to the other of the two.

  In the assist device, the hand portion 20 may be abolished, and the hand portion 15 and the string-like portion 34 may be connected to the inners 18 a and 19 a of the wires 18 and 19.

  The ascending operation switch 23 may be provided in the left hand unit 20 and the descending operation switch 24 may be provided in the right hand unit 20. Both the raising operation switch 23 and the lowering operation switch 24 may be provided in one of the right and left hand units 20.

  The ascending operation switch 23 may be provided in the right hand unit 15 and the descending operation switch 24 may be provided in the left hand unit 15. The ascending operation switch 23 may be provided in the left hand unit 15, and the descending operation switch 24 may be provided in the right hand unit 15. Both the ascending operation switch 23 and the descending operation switch 24 may be provided in one of the right and left hand portions 15.

The assist device may be configured not to include the right and left leg action portions 3.
In the assist device, the lifting device 17, the lifting operation switch 23 and the lowering operation switch 24 are abolished, the wires 18 and 19 are connected to the main body portion 1 and the arm portion 2, and the positions of the hand portions 15 and 20 are fixed. You may comprise so that the raising / lowering of the hand parts 15 and 20 may not be performed.

  The present invention is applied not only to a hand unit used for an assist device that is attached to an operator and assists the operator in holding a load, but also to a hand unit used for a winch or the like supported on a ceiling of a building. it can.

18, 19 Suspension mechanism 22 Lower side portion 22a Lower end portion 28 Middle portion 29 Upper portion 30 Portion where upper side suspension mechanism is connected 31, 32 Handle portion B Luggage W1 Luggage of the lower portion Width of the tip portion on the insertion side to the lower side W2 Width of the lower portion, width of the portion on the lower side opposite to the insertion side to the lower side of the load W3 Width of the intermediate portion

Claims (4)

A load holding hand portion that is connected to a suspension mechanism and suspended.
A lower part that is placed under the luggage and supports the luggage;
An intermediate part that is extended upward from a part opposite to the insertion side of the lower part of the luggage in the lower part and is located on the lateral outer side of the luggage,
An upper part that extends from the upper part of the intermediate part to the lower side part, is connected to the suspension mechanism, and is located on the upper side of the load;
A handle portion for separating the lower side portion from the lower side to the lateral outer side of the load is provided at a lower portion of the upper portion than a portion to which the suspension mechanism is connected, or at the intermediate portion. The hand part for holding luggage.   The load holding hand portion according to claim 1, wherein the width of the lower side portion is set to be larger than the width of the intermediate portion.   The width of the tip of the insertion side to the lower side of the load at the lower side is smaller than the width of the portion of the lower side opposite to the insertion side to the lower side of the load. The hand part for luggage holding according to claim 1 or 2, wherein the side part is tapered in a plan view.   The load holding hand portion according to any one of claims 1 to 3, wherein the lower side portion is formed in a frame shape in which bars are combined.

Images