JP2020040808A - Hand part for holding baggage - Google Patents

Abstract

An object of the present invention is to improve the operability of holding a load by the hand portion and the operability of lifting the load while holding the load by the hand portion.
A horizontal portion (30) connected to a suspending mechanism and arranged vertically in a hand portion (20), a support portion (31) extending laterally from a lower portion of the horizontal portion (30) and supporting a load; And a handle portion 48 provided on a portion of the lateral portion 30 opposite to the support portion 31. Slide mechanisms 33, 49, and 50 are provided to support the handle portion 48 so as to be slidable along the vertical direction of the lateral portion 30.
[Selection diagram] FIG.

Description

  The present invention is used for hanging by being connected to a suspending mechanism in an assist device mounted on an operator, a winch supported on a ceiling of a building, or the like, and a hand for holding a load. About the department.

  2. Description of the Related Art As an assist device to be used by being worn by an operator, there is one disclosed in Patent Document 1. In Patent Document 1, an arm portion extends forward from a main body portion attached to an operator, and a wire portion (corresponding to a suspension mechanism) extending downward from the arm portion is provided with a hand portion for holding luggage. It is connected.

  The hand portion of Patent Document 1 is supposed to hold luggage, such as a cardboard box, which does not have an opening or the like for inserting the hand portion on the side wall portion. A lateral portion connected and arranged in the vertical direction is provided, and a support portion extending laterally from a lower portion of the lateral portion is provided.

  For the luggage placed on the floor etc., the worker inserts the support part of the hand part between the floor etc. and the luggage while holding a part near the lower side on the side part of the hand part, The luggage is held by the hand unit, and the luggage is lifted while the luggage is held by the hand unit.

JP-A-2018-2345 (see FIGS. 4, 8, and 9)

  When the luggage placed on the floor or the like is inserted into the luggage between the floor or the like and the luggage by inserting the tip of the support unit of the hand unit and the luggage is held by the hand unit, the worker is required to insert the side part of the hand unit. By having a portion close to the support portion in the above, the operability of the support portion of the hand portion is improved.

However, when the operator lifts the luggage while holding the luggage by the hand unit, if the worker holds a part near the support unit on the lateral side of the hand unit, the support unit of the hand unit is located below the hand unit. Since the worker's hand is located near the floor or the like by being positioned, the worker's posture may be a posture in which the upper body is largely downward (a deep leaning posture). .
Thus, when the worker lifts the luggage from a posture in which the upper body is largely downward (a deep leaning posture), a heavy load may be imposed on the worker.

  Next, after lifting while holding the luggage by the hand unit, when the worker moves to another place while holding the luggage by the hand unit, the worker hands by hand so that the hand unit does not come off the luggage. The side of the part must be pressed against the side wall of the load.

  In the state described above, if the worker holds a portion near the support portion on the side portion of the hand portion, the support portion of the hand portion is located at the lower portion of the hand portion, and the posture of the worker is In some cases, the upper body is slightly turned downward (the forward leaning position), and the hand is extended diagonally downward, which may place a heavy burden on the operator.

  The present invention aims to improve the operability when holding luggage with the hand unit and the operability when lifting and holding the luggage while holding the luggage with the hand unit in the luggage holding hand unit. It is intended to be.

The luggage holding hand unit of the present invention includes:
A hand portion for holding a luggage that is connected to and suspended from a suspension mechanism,
The suspension mechanism is connected to a lateral side portion arranged in the up and down direction, and a support portion that extends laterally from a lower portion of the lateral side portion and supports a load, is provided.
A handle portion provided on a portion of the side portion opposite to the support portion, for a worker to hold;
A slide mechanism for slidably supporting the handle in the vertical direction of the lateral portion.

  According to the present invention, when holding the luggage by the hand unit, the handle of the hand unit may be moved to the lower part of the sliding range by the slide mechanism, and the operator has the handle of the hand unit, It is possible to obtain a state in which the side portion of the hand portion has a portion close to the support portion.

  This allows the worker to easily insert the support of the hand unit between the floor and the like and the luggage while holding the handle of the hand unit for the luggage placed on the floor or the like. Thus, the luggage can be held, and the operability at the time of holding the luggage by the hand unit is improved.

  According to the present invention, when lifting the luggage while holding the luggage by the hand unit, the handle unit of the hand unit may be moved to the upper part of the slide range by the slide mechanism, and the worker is in a state close to an upright posture. The hand can be extended obliquely downward to obtain a state in which the hand has a handle.

  Thus, by lifting the load from the above-described state, it is possible to avoid a state in which a heavy load is applied to the worker, and the operability when lifting the load while holding the load by the hand unit is improved.

  According to the present invention, when the user lifts the luggage while holding the luggage by the hand unit, by moving the handle unit of the hand unit to the upper part of the sliding range by the slide mechanism, the worker can stand upright. The hand can be extended diagonally downward while in the close state, and a state in which the handle portion of the hand portion is held can be obtained.

  In the above-described state, the worker presses the handle portion of the hand portion by hand against the side wall portion of the baggage by hand so that the side portion of the hand portion can be easily pressed against the side wall portion of the baggage so that the hand portion does not come off the baggage. Since it can be pressed, the operability after lifting the luggage while holding the luggage by the hand portion is improved.

In the present invention,
In the slide mechanism,
A predetermined distance from a portion of the side portion opposite to the support portion, a slide guide portion supported along the vertical direction of the side portion,
It is preferable that a slide support portion for slidably supporting the handle portion on the slide guide portion is provided.

According to the present invention, the slide mechanism (slide guide section and slide support section) is disposed slightly away from the lateral side of the hand section on the side opposite to the support section of the hand section.
Thus, even when the handle of the hand is moved up and down in a state where the side of the hand is brought into contact with the lateral wall of the load, the handle of the hand contacts the horizontal wall of the load. However, the handle portion of the hand portion can be moved up and down without difficulty, and the operability of the movement of the handle portion of the hand portion is improved.

In the present invention,
It is preferable that a holding portion capable of holding and releasing the holding is provided at a lower portion of a slide range of the slide mechanism.

  When inserting the support section of the hand section between the floor and the luggage for the luggage placed on the floor, etc., change the direction of the support section of the hand section with respect to the luggage, or place the support section of the hand section on the floor or the like. There is a case where the support portion of the hand portion is operated such that it is slightly inserted after being inserted between the device and the baggage.

According to the present invention, when a support portion of the hand portion is inserted between the floor or the like and the baggage with respect to the baggage placed on the floor or the like, the handle portion of the hand portion is held at a lower portion of a slide range by the slide mechanism. You should keep it.
Accordingly, even if the operator holds the handle portion of the hand portion and operates the support portion (handle portion) of the hand portion as described above, the handle portion of the hand portion is positioned below the sliding range by the slide mechanism. Therefore, the operation of the support portion (handle portion) of the hand portion can be performed easily, and the operability of the support portion (handle portion) of the hand portion is improved.

In the present invention,
It is preferable that the vertical length of the lateral side is set to be larger than the lateral width of the lateral side.

  According to the present invention, since the lateral portion of the hand portion is vertically long, the sliding range of the sliding mechanism can be set to be vertically long, and the position of the handle portion of the hand portion can be set. A wide range can be set, and the operability of the support portion (handle portion) of the hand portion is improved.

In the present invention,
It is preferable that the lateral width of the support portion is set to be larger than the lateral width of the lateral side portion.

  According to the present invention, since the lateral width of the support portion of the hand portion is large, it becomes possible to stably support the load by the support portion of the hand portion, and the stability of holding the load by the hand portion is reduced. It will be good.

FIG. 5 is a right side view in a state where the worker wears the assist device. It is a rear view in the state where the worker attached the assisting device. It is a perspective view of an assist apparatus. It is a side view of an attachment part. It is a front view of an attachment part. It is a side view which shows the state which attached the connection part of the hand part to the attachment part. It is a vertical back view of a hand part. It is a perspective view of a hand part. It is an exploded perspective view of a switch operation part. It is a front view which shows the state which an operator inserts the support part of a hand part between floors etc. and luggage, holding the handle part of a hand part. It is a front view which shows the state which the worker hold | maintained and lifted the load with the hand part. FIG. 8 is a rear view of a hand unit according to the first alternative embodiment of the present invention. It is a rear view of a hand part in a 2nd different form of an embodiment of the invention.

FIGS. 1 to 13 show an assist device using the luggage holding hand unit 20 of the present invention, and the assist device is used by being worn by an operator.
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 worker 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 worker.

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

  The main body 1 has a right and left vertical frame 6, a support plate 7 connected to the right and left vertical frames 6, and the like, and has a frame shape. A control device 8 is attached to the upper and lower middle portions of the rear surface of the support plate 7, and a battery 9 is attached to a lower portion of the rear surface of the support plate 7.

  An attachment belt 4 is attached to a lower portion of the main body 1, and a shoulder belt 5 is attached to upper and lower portions of a front surface of a support plate 7. A fixed belt 5 a is attached over the upper portions of the right and left shoulder belts 5. The fixed belt 5a of the shoulder belt 5 can be separated to the left and right by a buckle member at an intermediate portion, and its length can be adjusted.

  The main body 1 is attached to the back of the worker by placing the arm and shoulder of the worker in the shoulder belt 5 and wrapping and fixing the attachment belt 4 to the waist of the worker. By keeping the fixed belt 5a of the shoulder belt 5 in the connected state, a state in which the right and left shoulder belts 5 move toward the arm of the worker and come off the shoulder is prevented.

(Leg working part of assist device)
As shown in FIGS. 1, 2, and 3, the leg action section 3 includes a base 10, a transmission case 11, an operation arm 12, a leg belt 13, and the like. A base 10 is supported by a lower front portion of the support plate 7 so that the mounting position can be changed in the left-right direction. A transmission case 11 is connected to an outer end of the base 10 in a forward direction.

  An operation arm 12 is swingably supported around a left-right axis P1 at a front portion of the transmission case 11, and a wide belt-shaped leg belt 13 is attached to the operation arm 12. A transmission mechanism (not shown) constituted by a plurality of spur gears is provided inside the transmission case 11, an electric motor (not shown) is provided inside the base 10, and the transmission mechanism is provided by the electric motor. The operation arm 12 is swingably operated around the axis P1 via.

  The worker 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)). When the worker wears the assist device, the right leg action part 3 (transmission case 11) is located on the right side of the worker's waist, and the left leg action part 3 (transmission case 11) is on the left side of the worker's waist. ) Is located.

(Arm part and wire of assist device)
As shown in FIGS. 1, 2, and 3, the upper portions of the right and left vertical frames 6 extend obliquely upward and beyond the right and left shoulders of the worker and extend obliquely forward, and the right and left vertical frames 6 extend. The left arm 2 is provided. A support member 16 is attached to the upper end of the arm 2, and a pulley (not shown) is rotatably supported by the support member 16.

  An elevating device 17 is attached to the upper part of the rear surface of the support plate 7, and two right wires 18 and 19 (corresponding to a suspension mechanism) and two left wires 18 and 19 (from the elevating device 17) are provided. (Corresponding to a suspension mechanism).

  An outer support portion 15 is connected to an upper portion of the support plate 7, and an outer support portion 16 a is provided on the support member 16. The ends of the outer 18b, 19b of the wires 18, 19 are connected to the outer support 16a of the outer support 15 and the support member 16, and the inner 18a, 19a of the wires 18, 19 are connected to the lifting device 17. .

  Inners 18a and 19a of the two right wires 18 and 19 are hooked on pulleys of the right support member 16 and extend downward. The right mounting part 21 is connected to the lower part of the inner wires 18 a and 19 a of the two right wires 18 and 19, and the right hand part 20 is connected to the right mounting part 21.

  Inners 18a and 19a of the two left wires 18 and 19 are hung on a pulley of the left support member 16 and extend downward. A left mounting portion 21 is connected to lower portions of the inner wires 18a and 19a of the two left wires 18 and 19, and a left hand portion 20 is connected to the left mounting portion 21.

(Mounting part of assist equipment)
As shown in FIGS. 4 and 5, the mounting portion 21 has a flat plate shape, and the lower portions of the inner wires 18 a and 19 a of the wires 18 and 19 are swingably connected to the mounting portion 21. Two headed pins 22 are connected to the mounting portion 21 in a horizontal direction, and the pins 22 are provided with a round bar-shaped shaft portion 22a and a head portion 22b having a larger diameter than the shaft portion 22a. .

  An opening 21 a is opened at a portion between the pins 22 in the mounting portion 21. The retaining member 28 is connected to a portion between the pins 22 in the mounting portion 21 by a connecting pin 29.

  The retaining member 28 is formed by bending a leaf spring, and includes a base 28a connected to the mounting portion 21 by a connecting pin 29, and a convex portion 28b extending from the base 28a. The protrusion 28 b of the retaining member 28 enters the opening 21 a of the mounting portion 21 and protrudes toward the head 22 b of the pin 22.

(Elevating device for assist equipment)
As shown in FIGS. 1 and 2, the lifting device 17 is provided with an up-down transmission case 25 containing a transmission mechanism (not shown), a support case 26 laterally connected to an upper portion of the transmission case 25, and a transmission case 25. An electric motor 27 connected laterally to the lower part of the housing, and four rotating bodies (not shown) rotatably supported around a horizontal axis inside the support case 26 are provided.

  The ends of the outer 18b, 19b of the wires 18, 19 are connected to the outer support portion 15, and the inner 18a, 19a of the wires 18, 19 are connected to each of the four rotating bodies inside the support case 26. .

  The control device 8 operates the electric motor 27. The power of the electric motor 27 is transmitted to the rotator inside the support case 26 via the transmission mechanism inside the transmission case 25, and the rotator is rotationally driven to the winding side and the feeding side.

(Hand part)
FIGS. 7 and 8 show the right and left hand units 20. The plate member is bent to form the hand unit 20, and the right and left hand units 20 have the same shape.

  In the hand unit 20, the plate material is bent, and a horizontal side unit 30 arranged in the vertical direction, a support unit 31 extending in the horizontal direction from a lower portion of the horizontal side unit 30, and a vertical A receiving part 32 arranged in the direction is formed.

  The vertical length L1 of the lateral portion 30 is set to be larger than the lateral width W1 of the lateral portion 30. The width W2 of the support portion 31 (the receiving portion 32) is set to be larger than the width W1 of the lateral portion 30. The width W2 of the support portion 31 (the receiving portion 32) is set in the vertical direction of the horizontal portion 30. Is set to be smaller than the length L1.

  An upper portion 33a, a lower portion 33b, and a lateral portion 33f of a flat plate material are bent to provide a slide guide portion 33 (corresponding to a slide mechanism), and an elongated hole 33c along the vertical direction is opened in the slide guide portion 33. Have been.

  The upper part 33a and the lower part 33b of the slide guide part 33 are connected to the upper end part and the lower end part of the part of the side part 30 opposite to the support part 31, and the part of the side part 30 opposite to the support part 31. The slide guide portion 33 is supported by the horizontal side portion 30 along the up-down direction of the horizontal side portion 30 with a predetermined interval W3 therebetween.

  At one end and the other end of the side portion 30 in the direction of the width W1, the side portion 33f of the slide guide portion 33 is connected to the side portion 30, and the side portion 30 and the slide guide portion 33 are reinforced with each other. ing.

  A flat connection portion 34 is connected to an upper end portion of the lateral portion 30 (upper portion 33a of the slide guide portion 33). As shown in FIGS. 6 and 8, two first openings 38 are opened above the connection portion 34, and are located below the first opening 38 and connected to the first opening 38. Thus, the second opening 39 having a larger diameter than the first opening 38 is opened. An opening 35 is opened between the first opening 38 and the second opening 39.

  As shown in FIGS. 7 and 8, a flat plate material is bent into a channel shape, and a handle portion 48 is provided. Flanges 48a and 48b are provided on the upper and lower portions of the handle 48, and an opening 48c is opened in the center of the handle 48. The hook-and-loop fasteners 36 and 37 (magic tape (registered trademark)) are attached to one and the other portions of the handle portion 48 with the opening portion 48c interposed therebetween.

  A bolt 49 (corresponding to a slide support portion) (corresponding to a slide mechanism) is inserted and attached over the openings of the flange portions 48a and 48b of the handle portion 48 and the elongated hole 33c of the slide guide portion 33. I have.

  A washer 50 (corresponding to a slide support portion) (corresponding to a slide mechanism) is sandwiched between the bolt 49 and the flange portions 48a, 48b of the handle portion 48. A washer 50 (corresponding to a slide support) (corresponding to a slide mechanism) is sandwiched between the bolt 49 and the slide guide 33 (elongated hole 33c).

  By moving the bolt 49 and the washer 50 along the elongated hole 33c of the slide guide portion 33 with the above structure, the handle portion 48 moves along the vertical direction of the side portion 30 so that the length of the slide guide portion 33 becomes longer. It is slidably supported in the range of the hole 33c (sliding range).

(Switch operation part)
As shown in FIGS. 7 and 9, a switch operation unit 40 that can be attached to and detached from the hand unit 20 is provided. The switch operation unit 40 includes an outer portion 41 integrally formed of synthetic resin and an inner portion 42 made of metal. The inner portion 42 is connected to the inner surface of the outer portion 41 by screws.

  The inner portion 42 is formed by bending a metal plate material, and includes a lateral portion 43 arranged vertically, an upper portion 44 extending laterally from an upper portion of the lateral portion 43, and an end portion of the upper portion 44. There is provided a lateral side portion 45 extending upward from the side. In the inner portion 42, a hook-and-loop fastener 46 (magic tape (registered trademark)) is attached to a surface of the lateral portion 43 on the upper portion 44 side, and a hook-and-loop fastener 46 is attached to a lower surface of the upper portion 44. .

  The right switch operation unit 40 attached to the right hand unit 20 and the left switch operation unit 40 attached to the left hand unit 20 have left-right symmetric shapes. The up switch 23 is attached to the right switch operation section 40 (outside section 41), and the down operation switch 24 is attached to the left switch operation section 40 (outside section 41).

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

(Attachment and removal of the hand part (connection part) to and from the attachment part)
The first opening 38 and the second opening 39 of the hand unit 20 (connecting unit 34) shown in FIGS. 6 and 8, and the shaft 22a and the head of the pin 22 of the mounting unit 21 shown in FIGS. 22b, the first opening 38 has a slightly larger diameter than the shaft 22a of the pin 22 and a smaller diameter than the head 22b of the pin 22. The second opening 39 has a larger diameter than the head 22 b of the pin 22.

The states shown in FIGS. 4, 5, and 8 are states in which the hand unit 20 (the connection unit 34) has been removed from the attachment unit 21.
As shown in FIGS. 4 and 5, while pushing the convex portion 28 b of the retaining member 28 by hand into the opening 21 a of the mounting portion 21, as shown in FIG. 6, the pin 22 (the shaft portion 22 a and the head The part 22 b) is inserted into the second opening 39.

  Next, as shown in FIGS. 6 and 7, the mounting portion 21 is slightly moved upward, so that the shaft portion 22 a of the pin 22 enters the first opening 38 from the second opening 39. When the shaft portion 22 a of the pin 22 is inserted into the first opening 38, the projection 28 b of the stopper member 28 enters the opening 35 and projects toward the head 22 b of the pin 22, and the projection of the stopper member 28. 28b is in a state of hitting the lower side of the opening 35.

The above state is a state where the hand unit 20 (the connection unit 34) is attached to the attachment unit 21.
Even if the shaft portion 22a of the pin 22 attempts to move from the first opening 38 to the second opening 39, the protrusion 28b of the retaining member 28 hits the lower side of the opening 35, so that the shaft 22a of the pin 22 Is stopped from moving to the second opening 39, and the hand portion 20 (the connection portion 34) is hard to be detached from the attachment portion 21.

  When the baggage B is held by the hand unit 20, the weight of the baggage B hangs downward on the hand unit 20, so that the shaft 22 a of the pin 22 is held by the first opening 38, and This makes it difficult to move to the second opening 39, so that the hand unit 20 (connecting unit 34) does not easily come off the mounting unit 21.

  Even if the shaft 22a of the pin 22 tries to escape from the first opening 38, the shaft 22a of the pin 22 cannot escape from the first opening 38 due to the head 22b of the pin 22. The (connection portion 34) is hard to be detached from the attachment portion 21.

  When the hand portion 20 (connecting portion 34) is detached from the attachment portion 21, the protrusion 28b of the detachment prevention member 28 is pushed into the opening 21a of the attachment portion 21 in the state shown in FIGS. It is assumed that the projection 28 b of the opening 28 is removed from the side of the opening 35.

  In this state, the shaft portion 22a of the pin 22 is moved from the first opening portion 38 to the second opening portion 39, and the head portion 22b of the pin 22 is pulled out of the second opening portion 39. ) Can be removed from the mounting portion 21.

FIG. 7 shows a state in which the hand part 20 (the connection part 34) is attached to the attachment part 21 in a state where the attachment part 21 is located on the side of the lateral part 30 with respect to the connection part 34.
In this case, the hand unit 20 (connecting unit 34) is attached to the attaching unit 21 by performing the same operation as described above in a state where the attaching unit 21 is positioned on the opposite side of the lateral unit 30 with respect to the connecting unit 34. be able to.

(Attachment and removal of the switch operation part to the hand part)
As shown in FIGS. 7, 8, and 9, by attaching the hook-and-loop fastener 46 of the switch operation unit 40 to the hook-and-loop fastener 36 or the hook-and-loop fastener 37 of the hand unit 20, the switch operation unit 40 can be attached to the hand unit 20. The up operation switch 23 (down operation switch 24) is attached to the hand unit 20 via the switch operation unit 40.

  In the handle portion 48, the positions of the hook-and-loop fasteners 36 and 37 are spaced apart along the direction of the width W1 of the side portion 30, so that the worker can switch the switch operation portion 40 in accordance with the working state or the like. The hook-and-loop fastener 46 may be attached to the hook-and-loop fastener 36 or the hook-and-loop fastener 37 of the hand part 20.

  Since the connection range of the hook-and-loop fasteners 36, 37 and 46 is relatively wide, the mounting position of the switch operation unit 40 in the hand unit 20 can be arbitrarily changed in the connection range of the hook-and-loop fasteners 36, 37 and 46. .

  By removing the hook-and-loop fastener 46 of the switch operating unit 40 from the hook-and-loop fasteners 36 and 37 of the hand unit 20, the switch operating unit 40 is removed from the hand unit 20. Removed from 20.

  As described in (Hand part) (Attaching and detaching the hand part (connection part) to and from the attachment part) in the preceding paragraph, the first opening part 38 and the second opening part 39, the surface fastener 36 shown in FIGS. In the case of the hand unit 20 having such a configuration, another hand unit 20 (connecting unit 34) can be attached to the attaching unit 21 instead of the hand unit 20 shown in FIGS. Can be).

  As described above, when the various hand units 20 (connecting units 34) are attached to the attaching unit 21 (when they are replaced), the hook-and-loop fastener 46 of the switch operation unit 40 is replaced with the hook-and-loop fasteners 36 and 36 of the replaced hand unit 20. By attaching to the 37, the switch operation unit 40 (the raising operation switch 23 and the lowering operation switch 24) can be shared by the various hand units 20.

(Operation of leg action part and lifting device by control device)
As shown in FIGS. 1 and 2, when the lifting operation switch 23 is pressed, the leg action unit is pressed while the lifting operation switch 23 is pressed, as described later (work mode of the assist device). In 3, the operation arm 12 is operated to swing downward by the electric motor, and the thigh of the operator is operated downward.

  When the lifting operation switch 23 is pushed after the operation arm 12 of the leg action section 3 is pivoted downward, the lifting operation switch 23 is operated as described later (work mode of the assist device). During the pushing operation, in the elevating device 17, the rotating body is rotationally driven to the winding side by the electric motor 27, and the inner portions 18a, 19a of the wires 18, 19 are wound on the rotating body, and the hand portion 20 is raised. I do.

  When the lowering operation switch 24 is pressed, while the lowering operation switch 24 is being pressed, the rotating body is driven to rotate in the elevating device 17 by the electric motor 27 to the feeding side, and the inner members 18 a and 19 a of the wires 18 and 19 are rotated. Is pulled out from the rotating body, and the hand unit 20 descends.

When the pressing operation of the raising operation switch 23 and the lowering operation switch 24 is stopped, the electric motor 27 in the lifting device 17 stops.
The electric motor 27 is provided with an electromagnetic brake (not shown). When the electric motor 27 is operated, the electromagnetic brake is automatically released, and when the electric motor 27 is stopped and is not energized, the electromagnetic brake is automatically braked. State.

  Thus, when the electric motor 27 is stopped, the inner portions 18a and 19a of the wires 18 and 19 are not extended from the elevating device 17, and the hand portion 20 is lowered even if the weight of the baggage B is applied to the hand portion 20. I will not do it.

  When the electric motor stops in the leg action section 3, the electric motor enters a free rotation state. Accordingly, when the worker walks, or when the worker bends the waist downward or the knee is dropped, the operation arm 12 swings so as to follow the thigh of the worker. Therefore, the operation of the worker is not hindered.

(Operation to hold luggage by hand)
As shown in FIGS. 10 and 11, it is assumed that a baggage B, such as a cardboard box, in which an opening or the like for inserting the hand unit 20 is not provided on the side wall portion.

  As shown in FIG. 10, in a state where the baggage B is placed on the floor or the like, the operator holds the handle portion 48 of the hand portion 20 while holding the side portion 30 (slide guide portion 33) of the hand portion 20. In contrast, the handle portion 48 of the hand portion 20 may be moved to a position below the lateral portion 30 (the elongated hole 33c of the slide guide portion 33) of the hand portion 20.

Thus, by holding the handle portion 48 of the hand portion 20, the operator can obtain a state in which a portion of the side portion 30 of the hand portion 20 near the support portion 31 is held.
With respect to the baggage B placed on the floor or the like, the worker inserts the support portion 31 of the hand unit 20 without difficulty between the floor and the baggage B while holding the handle portion 48 of the hand unit 20. Thus, the side portion 30 and the receiving portion 32 of the hand portion 20 can be easily applied to the side wall portion of the load B.

  As described above, after inserting the support portion 31 of the hand portion 20 between the floor or the like and the baggage B and then lifting it while holding the baggage B with the hand portion 20, as shown in FIG. The user holds the handle portion 48 of the hand portion 20 by hand, and slides the side portion 30 (slide guide portion 33) of the hand portion 20 to move the handle portion 48 of the hand portion 20. What is necessary is just to move to the desired position of the upper part of the side part 30 (the long hole 33c of the slide guide part 33), or an intermediate part.

  In this case, as shown in FIG. 7, the slide guide portion 33 of the hand portion 20 is separated from the side portion 30 of the hand portion 20 (the horizontal wall portion of the baggage B) by the interval W3. Even if the handle portion 48 of the hand 20 is moved along the lateral side portion 30 (the elongated hole 33 c of the slide guide portion 33), the bolt 49 and the washer 50, and the handle portion 48 of the hand portion 20 can be moved. The handle portion 48 of the hand portion 20 can be moved without difficulty without contacting the baggage B.

  Thereby, as shown in FIG. 11, the worker can extend the hand obliquely downward while keeping the upper body in a state close to the upright posture, and obtain a state in which the handle portion 48 of the hand portion 20 is held. Thereafter, as described in the above (operation of the leg action section and the lifting device by the control device), the operator pushes the lifting operation switch 23 to raise the hand portion 20 to lift the load B. Can be.

  As described above, when the baggage B is lifted while being held by the hand unit 20, the handle 48 of the hand unit 20 is moved to the upper side of the lateral side 30 (the elongated hole 33c of the slide guide unit 33) of the hand unit 20. (Or an intermediate portion).

  Thereby, the worker can extend the hand diagonally downward while keeping the upper body in a state close to the upright posture, and obtain a state in which the handle portion 48 of the hand portion 20 is held. In this state, the worker presses the handle portion 48 of the hand portion 20 against the lateral wall portion of the baggage B by hand so that the hand portion 20 does not come off the baggage B. 32 can be pressed against the side wall of the load B without difficulty.

(Working style of assist equipment)
For example, in a case where a load B placed on a pallet or the floor is placed on a high shelf or a truck bed, the worker bends the waist downward or the knees to drop the waist, so that the pallet or the floor is dropped. Hold baggage B by hand, and then hold baggage B with hand extended down, then extend waist up or stand up, then lift baggage B by hand, and place baggage B on a high shelf. Or a state where it is placed on a truck bed.

  A state in which the leg action section 3 and the lifting device 17 are operated by the control device 8 based on the pressing operation of the raising operation switch 23 and the lowering operation switch 24 in a state where the worker wearing the assist device performs the above-described operation. Will be described.

  As shown in FIGS. 1 and 2, in a state where the worker wears the assist device, unless the worker pushes both the raising operation switch 23 and the lowering operation switch 24, the electric motor 27 of the lifting device 17 is moved. Stops, and the electric motor of the leg action section 3 is stopped (free rotation state).

  When the operator bends the waist downward (bends the knee to drop the waist) and holds the pallet or the load B on the floor, when the operator presses the lowering operation switch 24, the electric motor 27 in the elevating device 17 is moved. Operates to the payout side, the inners 18a, 19a of the wires 18, 19 are fed out, and the hand unit 20 descends.

  When the pressing operation of the lowering operation switch 24 is stopped, the electric motor 27 stops, and the hand unit 20 stops. Therefore, as described in the above-mentioned (holding operation of luggage by the hand unit), the handle of the hand unit 20 is held. The part 48 is moved to the lower part of the side part 30 (the elongated hole 33c of the slide guide part 33) of the hand part 20, and the hand part 20 holds the baggage B.

  The worker holds the baggage B by the hand unit 20 and, as described in the above-mentioned (holding operation of baggage by the hand unit), moves the handle 48 of the hand unit 20 to the lateral side of the hand unit 20. The luggage B is lifted by moving to the upper part (or the middle part) of 30 (the long hole 33c of the slide guide part 33) and extending the waist part (by standing up).

  In this case, when the operator presses the ascending operation switch 23, the operation arm 12 is pivoted downward in the leg action section 3, the thigh of the operator is operated downward, and the operator moves the lower back. Helping you to stand up.

  After the worker stands up while pressing the lifting operation switch 23, when it is detected in the leg action section 3 that the operation arm 12 has reached a position substantially downward, the worker stands up (stands up). ), The electric motor of the leg action section 3 is stopped (free rotation state).

  Next, when the operator pushes the raising operation switch 23, the electric motor 27 is operated to the winding side in the elevating device 17, the inner portions 18a, 19a of the wires 18, 19 are wound up, and the hand portion 20 is raised. I do. When the hand unit 20 rises to a desired position, the pressing operation of the raising operation switch 23 is stopped, so that the electric motor 27 stops and the hand unit 20 stops.

  The worker walks to a high shelf or a truck bed where the baggage B is to be placed. In this case, as described in the above-mentioned (holding operation of luggage by the hand unit), the handle unit 48 of the hand unit 20 is attached to the upper side of the side portion 30 (the elongated hole 33c of the slide guide unit 33) of the hand unit 20. In a state where the hand unit 20 is moved to (or an intermediate portion), the worker presses the handle 48 of the hand unit 20 against the lateral wall of the bag B by hand so that the hand unit 20 does not come off the bag B. The side portion 30 and the receiving portion 32 of 20 are pressed against the side wall portion of the load B.

  When the worker arrives at a high shelf, a truck bed, or the like, and presses the lowering operation switch 24, the electric motor 27 operates in the elevating device 17 to the feeding side, and the inner members 18a, 18a of the wires 18, 19 are moved. 19a is extended, and the hand unit 20 descends.

  The operator places the baggage B on a high shelf or a truck bed, and removes the hand unit 20 from the baggage B. When the load B is placed on a high shelf or a truck bed, the state returns to the initial state, and the same operation is performed on the next load B.

(First Embodiment of the Invention)
As shown in FIG. 12, in the hand unit 20, two obliquely upwardly extending branch elongated holes 33 d (corresponding to holding units) may be provided below the elongated holes 33 c of the slide guide unit 33.

  According to this structure, when the handle portion 48 is moved to a position below the slide guide portion 33 (the elongated hole 33c), the two bolts 49 are moved from the elongated hole 33c of the slide guide portion 33 to the branch elongated hole 33d. The handle portion 48 is held at the lower portion (branched elongated hole 33d) of the lateral portion 30 (the elongated hole 33c of the slide guide portion 33).

  Conversely, by moving the two bolts 49 from the elongated slot 33d of the slide guide 33 to the elongated hole 33c, the handle 48 is moved along the lateral side 30 (the elongated hole 33c of the slide guide 33). Can be moved.

  As described above, when the two bolts 49 are moved from the elongated hole 33c of the slide guide portion 33 to the branched elongated hole 33d, the handle portion 48 is moved in the width direction of the hand portion 20 (the width W1 of the side portion 30). Direction) (see FIG. 8).

  In this case, if the branch slot 33d of the slide guide 33 is set to extend to the worker side, the two bolts 49 are moved from the slot 33c of the slide guide 33 to the branch 33d. Then, the handle portion 48 comes close to the worker, so that the worker can easily hold the handle portion 48.

(Second alternative embodiment of the invention)
As shown in FIG. 13, in the hand unit 20, a hook-shaped bent long hole 33 e (corresponding to a holding unit) may be provided below the long hole 33 c of the slide guide unit 33.

  According to this structure, when the handle portion 48 is moved downward to the slide guide portion 33 (the elongated hole 33c), and then the lower bolt 49 is moved from the elongated hole 33c of the slide guide portion 33 to the bent elongated hole 33e. The handle portion 48 is held at a lower portion (bent elongated hole 33e) of the lateral portion 30 (the elongated hole 33c of the slide guide portion 33).

  Conversely, by moving the lower bolt 49 from the bent elongated hole 33e of the slide guide 33 to the elongated hole 33c, the handle 48 is moved along the lateral side 30 (the elongated hole 33c of the slide guide 33). Can be moved.

(Third alternative embodiment of the invention)
In the assist device, the ascending operation switch 23 and the descending operation switch 24 may be provided in the mounting portion 21. According to this structure, the switch operation unit 40 becomes unnecessary.

The up operation switch 23 may be provided on the left switch operation section 40 or the left mounting section 21, and the down operation switch 24 may be provided on the right switch operation section 40 or the right mounting section 21.
Both the raising operation switch 23 and the lowering operation switch 24 may be provided on one of the right or left switch operation part 40 and may be provided on one of the right or left mounting part 21.

(Fourth embodiment of the invention)
In the assist device, the right and left arms 2 may be eliminated and one arm 2 may be provided.
According to this structure, two wires 18 are extended from one arm portion 2, and the right mounting portion 21 (hand portion 20) is connected to one of the two wires 18, and the two wires 18 are connected to each other. The other mounting part 21 (hand part 20) is connected to the other. Alternatively, one wire 18 is extended from one arm portion 2, the end of one wire 18 is branched into a forked shape, and a right attachment portion 21 (hand portion 20) is attached to one of the branch portions. The left mounting part 21 (hand part 20) is connected to the other of the branch parts.

(Fifth Alternative Embodiment of the Invention)
In the assist device, the lifting device 17, the raising operation switch 23, and the lowering operation switch 24 are eliminated, the wires 18, 19 are connected to the main body 1 and the arm 2, and the position of the hand 20 is fixed. 20 may be configured not to be moved up and down.

(Sixth alternative embodiment of the invention)
The assist device may be configured so as not to include the leg action section 3. The main body 1 may be configured to be attached to the shoulder of the worker instead of the back of the worker.
Instead of the wires 18 and 19, a belt (not shown) made of synthetic resin (corresponding to a suspension mechanism) or a metal chain (not shown) (corresponding to a suspension mechanism) may be used.

  INDUSTRIAL APPLICABILITY The present invention is applied not only to a hand unit used for an assist device which is attached to a worker to assist the worker in holding luggage, but also to a hand unit used for a winch or the like supported on a ceiling of a building. it can.

18 wires (suspension mechanism)
19 wire (suspension mechanism)
30 lateral part 31 support part 33 slide guide part (slide mechanism)
33d Branch long hole (holding part)
33e bent slot (holding part)
48 Handle part 49 Bolt (slide mechanism) (slide support part)
50 Washer (slide mechanism) (slide support)
B Luggage L1 Vertical length of side part W1 Width of side part W2 Width of support part W3 Interval

Claims (5)

A hand portion for holding a luggage that is connected to and suspended from a suspension mechanism,
The suspension mechanism is connected to a lateral side portion arranged in the up and down direction, and a support portion that extends laterally from a lower portion of the lateral side portion and supports a load, is provided.
A handle portion provided on a portion of the side portion opposite to the support portion, for a worker to hold;
A luggage holding hand unit comprising: a slide mechanism for slidably supporting the handle unit along a vertical direction of the lateral side unit. In the slide mechanism,
A predetermined distance from a portion of the side portion opposite to the support portion, a slide guide portion supported along the vertical direction of the side portion,
2. The hand unit for holding luggage according to claim 1, further comprising a slide support unit that slidably supports the handle unit on the slide guide unit.   The hand part for holding a luggage according to claim 1 or 2, further comprising a holding part capable of holding and releasing the holding at a lower part of a sliding range by the slide mechanism.   The luggage holding hand part according to any one of claims 1 to 3, wherein a vertical length of the lateral part is set to be larger than a lateral width of the lateral part.   5. The luggage holding hand unit according to claim 1, wherein a lateral width of the support unit is set to be larger than a lateral width of the lateral side unit.

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