JP6899677B2 - Hand part for holding luggage - Google Patents

Description

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

As an assist device worn and used by an operator, there is one disclosed in Patent Document 1. In Patent Document 1, the arm portion extends forward from the main body portion attached to the operator, and the hand portion for holding luggage is attached to the wire (corresponding to the hanging mechanism) extending downward from the arm portion. It is connected.

The main body is provided with an elevating device for winding and feeding out the wire, and the hand is provided with a manual elevating operation unit for operating the elevating device. As a result, the operator holds the load by the hand unit while holding the hand unit by hand, and the manual elevating operation unit can be operated by the hand holding the hand unit.

Japanese Unexamined Patent Publication No. 2015-182832

In Patent Document 1, luggage in a hard case such as a beer case is assumed, and it is assumed that the luggage is held by the hand portion by inserting the lower portion of the hand portion into the opening of the side wall portion of the luggage. ing.
On the other hand, there are bag-shaped luggage such as rice bags and cement bags, which are made of cloth, paper, vinyl, etc. containing powder and granules, and whose shape is easily changed.

As described above, it is difficult to hold a bag-shaped luggage whose shape is easily changed by the hand portion of Patent Document 1, and when the bag-shaped luggage is held by the hand portion of Patent Document 1, the luggage is damaged ( There is a possibility that it will develop into a patent.
An object of the present invention is to enable a hand portion for holding a baggage to appropriately hold a bag-shaped baggage whose shape is liable to change.

The hand portion for holding luggage of the present invention is
It is a hand part for workers to hold luggage,
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion has a first receiving portion located on the lower side of the cargo and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected.
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening.
The angle formed by the contact surface of the first receiving portion with the luggage and the contact surface of the second receiving portion with the luggage is an obtuse angle.
The angle formed by the back surface side of the first receiving portion and the back surface side of the second receiving portion is an obtuse angle.
The cover member is bent along the back surface side of the first receiving portion and the back surface side of the second receiving portion.

According to the present invention, the receiving portion of the hand portion is provided with a first receiving portion and a second receiving portion.
As a result, when the bag-shaped luggage is held by the hand portion, for example, the contact surface of the first receiving portion is positioned on the lower side of the luggage, and the contact surface of the second receiving portion is positioned on the side of the luggage. While the weight of the luggage is supported by the first receiving portion, the luggage can be stabilized by the second receiving portion, and the bag-shaped luggage can be appropriately held by the hand portion.

According to the present invention, cover members are attached to the back surface side of the first receiving portion and the back surface side of the second receiving portion, and an operator can put his / her hand into the space of the cover member through the opening of the cover member. You can put your hands on the back side of the first receiving part and the back side of the second receiving part.
As a result, when the contact surface of the first receiving portion is positioned on the lower side of the luggage, the contact surface of the second receiving portion is positioned on the side of the luggage, and the luggage is held by the hand portion, the operator himself / herself. Since it is possible to obtain a state close to the state of actually holding the luggage by hand, the operability is improved.

According to the present invention, when the operator puts his / her hand into the space of the cover member through the opening of the cover member, the operator's hand is protected by the cover member, and the operator's hand is prevented from being separated. The operator can change the position and posture of the hand portion by moving the hand, and the operability is improved.
According to the present invention, as described above, when an operator puts his / her hand into the space of the cover member through the opening of the cover member, the index finger to the little finger are applied to the back surface side of the first receiving portion, and the back surface of the second receiving portion is applied. It is possible to naturally obtain a state in which the palm is placed on the side, and it is possible to reasonably obtain a state in which the hand portion is supported by the operator's hand so as not to separate.
Further, the hand portion for holding luggage of the present invention is
It is a hand part for workers to hold luggage,
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion has a first receiving portion located on the lower side of the cargo and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected.
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening.
The angle formed by the contact surface of the first receiving portion with the luggage and the contact surface of the second receiving portion with the luggage is an obtuse angle.
In the portion of the cover member corresponding to the first receiving portion, the first width of the cover member in a direction orthogonal to the contact surface of the first receiving portion with the luggage, and
In the portion of the cover member corresponding to the second receiving portion, with respect to the second width of the cover member in a direction orthogonal to the contact surface of the second receiving portion with the load.
The first width of the cover member is set to be smaller than the second width of the cover member.
According to the present invention, the width of the portion corresponding to the first receiving portion of the cover member is narrow, so that the total width of the first receiving portion and the portion corresponding to the first receiving portion of the cover member is also large. It doesn't become a thing.
As a result, for example, when the luggage placed on the floor is held by the hand portion, the first receiving portion and the cover member can be easily inserted between the luggage and the floor, and the luggage can be appropriately inserted by the hand portion. Can be held in.
Further, the hand portion for holding luggage of the present invention is
It is a hand part for workers to hold luggage,
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion has a first receiving portion located on the lower side of the cargo and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected.
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening.
A thumb opening for putting a thumb out of the space is provided on the lateral side of the cover member.
A manual lifting operation unit for operating the hanging mechanism is provided on the portion on the first receiving portion side with respect to the thumb opening.
The accommodating portion accommodating the manual elevating operation unit protrudes toward the luggage side from the contact surface of the second receiving portion with the luggage.
When the manual elevating operation unit is provided, the accommodating unit for accommodating the manual elevating operation unit may be provided, and according to the present invention, the accommodating portion protrudes from the contact surface of the second receiving portion to the luggage side.
As a result, when the bag-shaped luggage is held by the hand portion, the storage portion tends to hit the luggage, and the luggage held by the hand portion becomes difficult to move due to the storage portion hitting the luggage, and the luggage is held by the hand portion. Can be held properly.
Further, the hand portion for holding luggage of the present invention is
A hand part for workers to hold fluid luggage.
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion includes a first receiving portion in which an inelastic plate material is bent and located on the lower side of the load, and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected. Have and
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening, and the first receiving portion and the second receiving portion are formed. Hold the luggage in surface contact with the luggage.

In the present invention
It is preferable that the non-slip member of the luggage is attached to the contact surface of the first receiving portion with the luggage.

According to the present invention, when the contact surface of the first receiving portion is positioned on the lower side of the load and the load is held by the hand portion, the state in which the load is about to come off from the contact surface of the first receiving portion slips. Since it is held down by the stopper member, the luggage can be properly held by the hand portion.

In the present invention
It is preferable that the angle formed by the contact surface of the first receiving portion with the load and the contact surface of the second receiving portion with the load is an obtuse angle.

According to the present invention, when the contact surface of the first receiving portion and the contact surface of the second receiving portion are pressed against the luggage in a state where the bag-shaped luggage is held by the hand portion, the luggage is pressed against the contact surface of the first receiving portion and the contact surface of the first receiving portion. It is easy to fit into the contact surface of the second receiving portion, and the luggage comes into contact over a wide range of the contact surface of the first receiving portion and the contact surface of the second receiving portion, and the luggage is properly handled by the hand portion. Can be retained.

In the present invention
The angle formed by the back surface side of the first receiving portion and the back surface side of the second receiving portion is an obtuse angle.
It is preferable that the cover member is bent along the back surface side of the first receiving portion and the back surface side of the second receiving portion.

According to the present invention, as described above, when an operator puts his / her hand into the space of the cover member through the opening of the cover member, the index finger to the little finger are applied to the back surface side of the first receiving portion, and the back surface of the second receiving portion is applied. It is possible to naturally obtain a state in which the palm is placed on the side, and it is possible to reasonably obtain a state in which the hand portion is supported by the operator's hand so as not to separate.

In the present invention
In the portion of the cover member corresponding to the first receiving portion, the first width of the cover member in a direction orthogonal to the contact surface of the first receiving portion and
In the portion of the cover member corresponding to the second receiving portion, with respect to the second width of the cover member in the direction orthogonal to the contact surface of the second receiving portion.
It is preferable that the first width of the cover member is set to be smaller than the second width of the cover member.

According to the present invention, the width of the portion corresponding to the first receiving portion of the cover member is narrow, so that the total width of the first receiving portion and the portion corresponding to the first receiving portion of the cover member is also large. It doesn't become a thing.
As a result, for example, when the luggage placed on the floor is held by the hand portion, the first receiving portion and the cover member can be easily inserted between the luggage and the floor, and the luggage can be appropriately inserted by the hand portion. Can be held in.

In the present invention
It is preferable that the lateral portion of the cover member is provided with a thumb opening for ejecting a thumb from the space.

As described above, when the operator puts his / her hand into the space of the cover member through the opening of the cover member, according to the present invention, the thumb can be put out from the thumb opening of the cover member and the thumb can be freely moved. be able to.
As a result, when holding the luggage by the hand part, the thumb can be moved so that the luggage can be easily held, or after the luggage is held by the hand part, the luggage can be stabilized by the thumb. It will be a good one.

In the present invention
It is preferable that a manual lifting operation unit for operating the hanging mechanism is provided on the portion on the first receiving portion side with respect to the thumb opening.

When the suspension mechanism is operated in a state where the hand portion is suspended by the suspension mechanism, according to the present invention, the suspension is performed by operating the manual lifting operation portion with the thumb protruding from the thumb opening of the cover member. The mechanism can be activated.

In this case, since the manual elevating operation portion is provided on the portion on the first receiving portion side with respect to the thumb opening of the cover member, the operator puts his / her hand into the space of the cover member through the opening of the cover member to cover the cover. The manual elevating operation unit is located at a position where the operator naturally extends the thumb in a state where the thumb is extended from the thumb opening of the member, and the manual elevating operation unit can be easily operated by the thumb.

In the present invention
It is preferable that the accommodating portion accommodating the manual elevating operation portion protrudes to the luggage side from the contact surface of the second receiving portion with the luggage.

When the manual elevating operation unit as described above is provided, the accommodating unit for accommodating the manual elevating operation unit may be provided, and according to the present invention, the accommodating portion protrudes from the contact surface of the second receiving portion to the luggage side. ..
As a result, when the bag-shaped luggage is held by the hand portion, the storage portion tends to hit the luggage, and the luggage held by the hand portion becomes difficult to move due to the storage portion hitting the luggage, and the luggage is held by the hand portion. Can be held properly.

It is a right side view with the operator wearing the assist device. It is a rear view with the operator wearing the assist device. It is the whole perspective view of the assist device. It is a perspective view of a hand part. It is a front view of a hand part. It is an exploded perspective view of a hand part. It is an exploded front view of a hand part. It is a front view which shows the holding state of the baggage by the hand part. It is an exploded perspective view of the hand part in the 1st alternative embodiment of the invention. It is an exploded front view of the hand part in the 2nd alternative embodiment of the invention.

1 to 10 show a state in which the hand portion 20 for holding a load of the present invention is attached to an assist device worn and used by an operator.
Unless otherwise specified, the front-rear direction and the left-right direction in the embodiment of the present invention are described as follows. When the worker is wearing 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 of assist device and main body)
As shown in FIGS. 1, 2 and 3, the assist device includes a main body 1 attached to the back of the operator, right and left arm parts 2 extending upward from the upper part of the main body 1, and a main body. The right and left leg action portions 3 provided at the lower part of 1 are provided, and the attachment belt 4 for mounting on an operator and the right and left shoulder belts 5 are provided.

As shown in FIGS. 1, 2 and 3, the main body 1 is provided with a right and left vertical frames 6, a support plate 7 connected over the right and left vertical frames 6, and the like, and has a frame shape. There is. The attachment belt 4 is attached to the leg acting portion 3, and the shoulder belt 5 is attached to the upper part of the front surface of the support plate 7. The control device 8 is connected to the upper and lower intermediate portions on the rear surface of the support plate 7, and the battery 9 is attached to the lower portion of the rear surface of the support plate 7.

As shown in FIGS. 1 and 2, the worker's arm (shoulder) is put in the shoulder belt 5, and the mounting belt 4 is wrapped around the worker's waist and fixed, so that the main body is attached to the worker's back. 1 is attached.

As shown in FIGS. 1 and 2, the weight of the assist device and the luggage B (see FIG. 8) is mainly applied to the waist of the worker via the mounting belt 4, and the weight of the assist device and the luggage B is applied. Is stably supported by the waist of the worker. The right and left shoulder belts 5 mainly exert a function of stopping the state in which the main body 1 is about to move backward from the worker's back.

(Right and left leg action part)
As shown in FIGS. 1, 2, and 3, the leg acting portion 3 includes a base portion 10, a transmission case 11, an operation arm 12, a leg belt 13, and the like. The base portion 10 is slidably supported in the lower portion of the support plate 7 in the left-right direction, and the transmission case 11 is forwardly connected to the outer end portion of the base portion 10.

As shown in FIGS. 1, 2 and 3, the operation arm 12 is swingably supported around the horizontal axis P1 in the left-right direction of the front portion of the transmission case 11, and the wide belt-shaped leg belt 13 is provided. It is connected to the end of the operation arm 12. A transmission mechanism (not shown) composed of 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 oscillated and driven around the horizontal axis P1.

As described above, when the main body 1 is attached to the back of the operator, when the operator winds the attachment belt 4 around the waist and fixes it, the right and left leg action portions 3 (with the attachment belt 4) The base portion 10) can move in the left-right direction along the support plate 7.
As a result, the distance between the right and left leg action portions 3 is determined according to the wrapping condition of the attachment belt 4 around the waist, and the distance between the right and left leg action portions 3 is determined by the attachment belt 4. The position is fixed.

After that, as shown in FIGS. 1 and 2, the operator wraps the leg belt 13 around the thigh and uses a hook-and-loop fastener (not shown) (registered trademark: magic tape) to wrap the leg belt 13 around the thigh. Attach to.
When the worker is wearing 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 located on the left side of the worker's waist. ) Is located.

(Right and left arms)
As shown in FIGS. 1, 2 and 3, the upper part of the right and left vertical frames 6 extends diagonally forward and diagonally upward beyond the worker's right and left shoulders, and the right and left arms. A pulley (not shown) is rotatably supported on the upper end of the arm portion 2.

As shown in FIGS. 1, 2 and 3, the elevating device 17 is connected to the upper part of the rear surface of the support plate 7, and from the elevating device 17, the two wires 18 and 19 on the right (corresponding to the hanging mechanism). And the two left wires 18, 19 (corresponding to the hanging mechanism) are extended. The outer receiving portion 21 is connected to the upper part of the support plate 7, the outer receiving portion 22 is connected to the upper part of the arm portion 2, and the ends of the outers 18b and 19b of the wires 18 and 19 are connected to the outer receiving portions 21 and 22. Connected, the inners 18a and 19a of the wires 18 and 19 are connected to the elevating device 17.

As shown in FIGS. 1, 2 and 3, the inners 18a and 19a of the two wires 18 and 19 on the right are hung on the pulley at the upper end of the arm portion 2 and extend downward, and the 2 on the right. The right hand portion 20 is connected to the inners 18a and 19a of the wire 18 and 19 of the book. The inner 18a, 19a of the two left wires 18 and 19 are hung on the pulley at the upper end of the arm portion 2 and extend downward, and the inner 18a, 19a of the two left wires 18 and 19 are extended downward. The left hand portion 20 is connected to.

(lift device)
As shown in FIGS. 1 and 2, the elevating device 17 is connected to the support plate 7. A vertical transmission case 25 containing a transmission mechanism (not shown), a support case 26 laterally connected to the upper part of the transmission case 25, an electric motor 27 laterally connected to the lower part of the transmission case 25, and a support case 26. The elevating device 17 is provided with four rotating bodies (not shown) that are rotatable around the axis in the horizontal direction.

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

With the above structure, 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 and 2, when the rotating body is rotationally driven to the winding side by the electric motor 27 in the elevating device 17, the inners 18a and 19a of the wires 18 and 19 are wound around the rotating body. The hand portion 20 rises. When the rotating body is rotationally driven to the feeding side by the electric motor 27, the inners 18a and 19a of the wires 18 and 19 are fed out from the rotating body, and the hand portion 20 is lowered.

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 released when the electric motor 27 is stopped or de-energized.

(Overall configuration of the hand part)
As shown in FIGS. 1, 2, 4, and 5, the hand portion 20 includes a receiving portion 15, a cover member 16, and an ascending operation switch 23 (corresponding to a manual ascending / descending operation portion) connected to the inners 18a and 19a of the wires 18 and 19. ), A lowering operation switch 24 (corresponding to a manual raising / lowering operation unit), a non-slip member 28, and the like.

As shown in FIGS. 1, 2 and 3, the harness 14 connected to the control device 8 enters the inside of the arm portion 2 from the upper and lower intermediate portions of the right and left arm portions 2, and passes through the inside of the arm portion 2. It extends to the upper end of the arm portion 2. The harness 14 protrudes from the opening at the upper end of the right and left arm portions 2 and extends downward, and the harness 14 is connected to the ascending operation switch 23 and the descending operation switch 24.

(Structure of receiving part of hand part)
FIGS. 4, 5, 6 and 7 show the receiving portion 15, the cover member 16, the non-slip member 28, etc. of the right hand portion 20. In the right and left hand portions 20, the receiving portion 15, the cover member 16, the non-slip member 28, and the like are formed symmetrically and have the same structure.

As shown in FIGS. 4, 5, 6 and 7, a metal plate is bent to form a receiving portion 15. In the receiving portion 15, the first receiving portion 31 located below the luggage B (see FIG. 8), the second receiving portion 32 extending upward while slightly bending from the first receiving portion 31, and the first receiving portion 32 to the first. A connecting portion 33 extending upward while slightly bending toward the receiving portion 31 and a supporting portion 34 extending laterally from the second receiving portion 32 are provided.

As shown in FIGS. 4, 5, 6 and 7, a connection hole 33a is opened in the connection portion 33, and the inners 18a and 19a of the wires 18 and 19 are connected to the connection hole 33a of the connection portion 33. A flat plate-shaped non-slip member 28 made of rubber or the like is attached to the contact surface 31a of the first receiving portion 31 with the luggage B.

As shown in FIGS. 4, 5, 6 and 7, in the support portion 34 of the right hand portion 20, the ascending operation switch 23 and the connector 30 are located on the portion of the second receiving portion 32 on the contact surface 32a side with the luggage B. A housing case 29 (corresponding to a housing portion) for accommodating the ascending operation switch 23 and the connector 30 is attached.

As shown in FIGS. 4, 5, 6 and 7, in the support portion 34 of the left hand portion 20, the lowering operation switch 24 and the connector 30 are located on the portion of the second receiving portion 32 on the contact surface 32a side with the luggage B. A housing case 29 (corresponding to a housing portion) that is attached and houses the lowering operation switch 24 and the connector 30 is mounted.

As shown in FIGS. 1 and 2, in the right hand portion 20, the ascending operation switch 23 and the connector 30 are connected, and the harness 14 is connected to the connector 30. In the left hand portion 20, the lowering operation switch 24 and the connector 30 are connected, and the harness 14 is connected to the connector 30.

As shown in FIG. 7, the angle A1 formed by the contact surface 31a of the first receiving portion 31 and the contact surface 32a of the second receiving portion 32 is an obtuse angle. Similarly, the angle A2 formed by the back surface 31b of the first receiving portion 31 and the back surface 32b of the second receiving portion 32 is an obtuse angle, and the angle A1 and the angle A2 are the same. The storage case 29 protrudes from the contact surface 32a of the second receiving portion 32 to the luggage B side.

(Structure of cover member of hand part)
As shown in FIGS. 4, 5, 6 and 7, the cover member 16 is integrally formed of a synthetic resin in a bag shape.

As shown in FIGS. 4, 5, 6 and 7, in the cover member 16, the first lower side portion 35, the second lower side portion 36, the first upper portion 37 extending upward from the first lower side portion 35, and the second A pair of lateral sides connected to a second upper portion 38 extending upward from the lower side portion 36, a first lower side portion 35, a second lower side portion 36, a first upper portion 37, and a second upper portion 38. A tip portion 40 connected to a portion 39, a first lower side portion 35, a second lower side portion 36, and a lateral side portion 39 is provided.

As shown in FIGS. 4, 5, 6, and 7, in the cover member 16, the first upper portion 37, the second upper portion 38, and the lateral side portion 39 form an opening 41 that opens upward. A space 42 for receiving a worker's hand is formed inside the cover member 16. The space 42 is surrounded by a first lower side portion 35, a second lower side portion 36, a first upper side portion 37, a second upper side portion 38, a lateral side portion 39, and a tip portion 40.

As shown in FIGS. 4, 5, 6 and 7, in the cover member 16, the first lower side portion 35 and the first upper side portion 35 along the back surface 31b of the first receiving portion 31 and the back surface 32b of the second receiving portion 32. The connection portion with the portion 37 and the connection portion between the second lower side portion 36 and the second upper portion 38 are bent.
As a result, in the cover member 16, the angle A3 formed by the first lower side portion 35 and the first upper side portion 37 is formed by the back surface 31b of the first receiving portion 31 and the back surface 32b of the second receiving portion 32. It is the same as the angle A2.

As shown in FIGS. 4, 5, 6 and 7, the first lower side portion 35 of the cover member 16 is attached to the back surface 31b of the first receiving portion 31, and the first upper portion 37 of the cover member 16 is the second. It is attached to the back surface 32b of the receiving portion 32. As a result, the cover member 16 is provided on the back surfaces 31b and 32b of the contact surfaces 31a and 32a of the receiving portion 15 (the first receiving portion 31 and the second receiving portion 32) with the luggage B.

As shown in FIG. 7, the distance between the first lower side portion 35 and the second lower side portion 36 of the cover member 16 is set to the first width W1 (in the portion corresponding to the first receiving portion 31 of the cover member 16). , The first width W1 of the cover member 16 in the direction orthogonal to the contact surface 31a of the first receiving portion 31).
The distance between the first upper portion 37 and the second upper portion 38 of the cover member 16 is set to the second width W2 (in the portion of the cover member 16 corresponding to the second receiving portion 32, the contact surface of the second receiving portion 32). The second width W2 of the cover member 16 in the direction orthogonal to 32a).

In the above state, as shown in FIG. 7, the first width W1 of the cover member 16 is set to be smaller than the second width W2 of the cover member 16.
In this case, the thickness of the first receiving portion 31 and the thickness of the second receiving portion 32 are the same, and the thickness of both is not so large. As a result, the total width of the thickness of the first receiving portion 31 and the first width W1 of the cover member 16 does not become large.

As shown in FIGS. 4, 5, 6 and 7, a thumb opening 43 is formed in the lateral side 39 of the cover member 16 located on the support 34 side, and the ascending operation switch 23 (lowering operation switch 24). Is provided in the portion of the cover member 16 on the side of the first receiving portion 31 with respect to the thumb opening 43.

(Attachment of the hand part to the worker's hand)
When the worker holds the hand portion 20 by hand, as shown in FIGS. 4, 5, 6 and 7, the worker puts his / her hand into the space 42 of the cover member 16 through the opening 41 of the cover member 16 and covers the cover. A small finger is placed from the index finger on the inner surface of the first lower side portion 35 of the member 16 (the back surface 31b side of the first receiving portion 31), and the inner surface of the first upper portion 37 of the cover member 16 (the back surface 32b side of the second receiving portion 32). ), And the thumb is extended outward from the thumb opening 43 of the cover member 16.

When the worker puts his / her hand into the space 42 of the cover member 16 through the opening 41 of the cover member 16, the wrist of the worker protrudes upward from the opening 41 of the cover member 16. Since the connecting portion 33 extends upward from the second receiving portion 33 while slightly bending toward the first receiving portion 31, the connecting portion 33 rarely hits the wrist of the operator.

As a result, the operator's hand is protected by the cover member 16, and the hand portion 20 is supported by the operator's hand so as not to be separated. By moving the hand, the operator moves the hand. The position and posture of the portion 20 can be easily changed.

In a state where the operator puts his / her hand through the opening 41 of the cover member 16 into the space 42 of the cover member 16, the thumb can be freely moved by pulling the thumb outward from the thumb opening 43 of the cover member 16. ..

The ascending operation switch 23 (lowering operation switch 24) is located at a position where the thumb is extended outward from the thumb opening 43 of the cover member 16 and the thumb is naturally extended, and the ascending operation switch 23 (lowering operation) by the thumb is located. The switch 24) can be easily pressed.
By holding the side portion 39 of the cover member 16 so as to be sandwiched between the thumb protruding outward from the thumb opening 43 of the cover member 16 and the index finger of the space 42 of the cover member 16, the operator can hold the cover member 16 from the hand portion 20. It is possible to suppress the state in which the hand is about to come out.

(Holding luggage by hand)
For example, when a bag-shaped baggage B, such as a rice bag or a cement bag, which is made of cloth, paper, vinyl, etc. containing powder or granular material and whose shape is easily changed is held by the hand portion 20, the operator described the above. The right and left hand portions 20 are attached to the right and left hands as described in (Attachment of the hand portion to the worker's hand).

When the luggage B is placed on the floor, the tip of the first receiving portion 31 and the tip 40 of the cover member 16 are inserted between the luggage B and the floor, and the contact surface 31a of the first receiving portion 31a. (Non-slip member 28) is positioned on the lower side of the luggage B, and the contact surface 32a of the second receiving portion 32 is positioned on the lateral side of the luggage B. When an operation such as moving the luggage B is performed by the thumb protruding outward from the thumb opening 43 of the cover member 16, the above-mentioned operation is assisted.

Next, as described later (working mode of the assist device), by raising the hand portion 20, the luggage B can be held by the hand portion 20 as shown in FIG.
The weight of the luggage B is mainly supported by the first receiving portion 31, and the luggage B can be stabilized by the second receiving portion 32, so that the operator actually holds the luggage B with his / her own hands. You can get a close state.

As shown in FIGS. 4 and 8, the storage case 29 protrudes from the contact surface 32a of the second receiving portion 32 to the luggage B side, and the storage case 29 hits the luggage B, making the luggage B difficult to move. , Helps to hold luggage B stably. When an operation such as pressing the luggage B with the thumb protruding outward from the thumb opening 43 of the cover member 16 is performed, the stable holding of the luggage B is assisted.

As shown in FIG. 8, in a state where the cargo B is held by the hand portion 20, the contact surface 31a (non-slip member 28) of the first receiving portion 31 and the contact surface 32a of the second receiving portion 32 are loaded from both left and right sides. You can press B.
As a result, the luggage B becomes familiar with the contact surface 31a (non-slip member 28) of the first receiving portion 31 and the contact surface 32a of the second receiving portion 32, and the contact surface 31a (non-slip member 28) of the first receiving portion 31 becomes familiar. ), And the luggage B comes into contact over a wide range of the contact surface 32a of the second receiving portion 32.

(Working form of assist device)
For example, when luggage B placed on a pallet or floor is placed on a high shelf or a truck bed, the worker crouches down, holds the luggage B on the pallet or floor, and then extends his hand downward. It is assumed that the person stands up while holding the luggage B, then lifts the luggage B by hand, and puts the luggage B on a high shelf or a truck bed.

In a state where the operator wearing the assist device performs the above-mentioned work, the control device 8 controls the right and left leg action units 3 and the elevating device 17 based on the pushing operation of the ascending operation switch 23 and the descending operation switch 24. The state in which is operated will be described.

As shown in FIGS. 1 and 2, when the operator is wearing the assist device and the operator does not press both the ascending operation switch 23 and the descending operation switch 24, the electric motor 27 of the elevating device 17 is operated. Stops, and the electric motors of the right and left leg acting portions 3 are in a stopped state (free rotation state).

When the worker walks or when the worker bends the knees and drops the waist (when crouching), the operation arm 12 swings so as to follow the thighs of the worker, and the movement of the worker. Is not hindered.

Next, when the worker crouches down and holds the pallet or the luggage B on the floor, when the worker pushes the lowering operation switch 24, the electric motor 27 operates on the feeding side in the lifting device 17, and the inner wires 18 and 19 are inner. 18a and 19a are paid out, and the hand portion 20 is lowered.
When the pressing operation of the lowering operation switch 24 is stopped, the electric motor 27 is stopped and the hand portion 20 is stopped. As a result, the worker holds the luggage B by the hand unit 20 as described in the above-mentioned (holding the luggage by the hand unit).

As described above, the electric motor 27 is provided with an electromagnetic brake (not shown), and the electromagnetic brake is automatically put into a braking state when the electric motor 27 is stopped and when the electric motor 27 is not energized.
As a result, the inners 18a and 19a of the wires 18 and 19 are not extended from the elevating device 17 when the electric motor 27 is stopped, and even if the weight of the luggage B is applied to the hand portion 20 as described later, the hand The part 20 does not descend.

Next, the operator lifts the luggage B by standing up while holding the luggage B by the hand unit 20. In this state, when the operator pushes the ascending operation switch 23, the operation arm 12 is driven downward in the leg acting portion 3, the thigh portion of the operator is operated downward, and the operator stands up. Is assisted. As described above, when the operator stands up, the hand portion 20 does not descend due to the braking function of the electric motor 27 described above.

As described above, after the operator stands up while pressing the ascending operation switch 23, when it is detected in the leg acting portion 3 that the operating arm 12 has reached a position substantially downward, the operator causes the operator to stand up. It is determined that the legs have completely started, and the electric motor of the leg acting portion 3 is in a stopped state (free rotation state).

Next, in the elevating device 17, the electric motor 27 operates on the take-up side, the inners 18a and 19a of the wires 18 and 19 are taken up, and the hand portion 20 is raised. When the hand unit 20 rises to a desired position, the electric motor 27 stops and the hand unit 20 stops by stopping the pressing operation of the ascending operation switch 23.

Next, the worker walks to a high shelf on which the luggage B should be placed, a cargo bed of a truck, or the like. When the worker arrives at a high shelf, a truck bed, or the like and the worker pushes the lowering operation switch 24, the electric motor 27 operates on the feeding side in the lifting device 17, and the inners 18a of the wires 18 and 19 are operated. 19a is extended and the hand portion 20 is lowered.

As a result, the worker places the luggage B on a high shelf, a cargo bed of a truck, or the like, and separates the hand portion 20 from the luggage B. When the luggage B is placed on a high shelf, a truck bed, or the like in this way, it returns to the initial state, and the same operation is performed for the next luggage B.

(First alternative form of carrying out the invention)
The hand unit 20 shown in FIGS. 4, 5, 6 and 7 may be configured as follows.
As shown in FIG. 9, the first lower side portion 35 and the first upper portion 37 (see FIGS. 6 and 7) of the cover member 16 are abolished, and the edge portion and the tip portion of the lateral side portion 39 of the cover member 16 are abolished. The edge portion of 40 is attached to the back surface 31b of the first receiving portion 31 and the back surface 32b of the second receiving portion 32.

As a result, the second upper portion 38 and the lateral side portion 39 of the cover member 16 and the second receiving portion 32 form an opening 41 that opens upward. The space 42 is formed by the second lower side portion 36, the second upper side portion 38, the lateral side portion 39, the tip portion 40 of the cover member 16, the back surface 31b of the first receiving portion 31, and the back surface 32b of the second receiving portion 32. It is formed.

(Second alternative form of carrying out the invention)
In the hand portion 20 shown in FIGS. 4, 5, 6 and 7, and the hand portion 20 of (the first alternative embodiment of the invention), as shown in FIG. 10, the back surface 31b and the second receiving portion of the first receiving portion 31 The intermediate member 44 may be attached to the back surface 32b of the 32, and the cover member 16 may be attached to the intermediate member 44.

As shown in FIG. 10, it is assumed that the lower portion 45 of the intermediate member 44 has a flat plate shape in the front view, and the upper portion 46 of the intermediate member 44 has an inverted triangular shape in the front view.

In FIG. 10, assuming that the intermediate member 44 is a part of the receiving portion 15, the back surface 45b of the lower portion 45 of the intermediate member 44 becomes the back surface 31b of the first receiving portion 31, and the back surface 46b of the upper portion 46 of the intermediate member 44 is the first. 2 It becomes the back surface 32b of the receiving portion 32. In this case, the receiving portion 15 and the intermediate member 44 may be integrally formed of a synthetic resin or the like.

As a result, as shown in FIG. 10, in the receiving portion 15, the angle A1 formed by the contact surface 31a of the first receiving portion 31 and the contact surface 32a of the second receiving portion 32 becomes an obtuse angle.
In the receiving portion 15, the angle A4 formed by the back surface 45b of the lower portion 45 of the intermediate member 44 and the back surface 46b of the upper portion 46 becomes an obtuse angle, and the angle A4 becomes larger than the angle A1.
In the cover member 16, the angle A3 formed by the first lower side portion 35 and the first upper side portion 37 (the angle A3 formed by the edge portion of the lateral side portion 39) is the same as the angle A4.

In FIG. 10, assuming that the intermediate member 44 is a part of the cover member 16, the angle A3 (edge of the lateral side portion 39) formed by the first lower side portion 35 and the first upper side portion 37 in the cover member 16 The angle A3) formed by the portions is the angle A5 formed by the contact surface 45a of the lower portion 45 of the intermediate member 44 and the contact surface 46a of the upper portion 46. In this case, the cover member 16 and the intermediate member 44 may be integrally formed of a synthetic resin or the like.

As a result, as shown in FIG. 10, in the receiving portion 15, the angle A1 formed by the contact surface 31a of the first receiving portion 31 and the contact surface 32a of the second receiving portion 32 becomes an obtuse angle.
In the receiving portion 15, the angle A2 formed by the back surface 31b of the first receiving portion 31 and the back surface 32b of the second receiving portion 32 becomes an obtuse angle, and the angle A1 and the angle A2 are the same.

As shown in FIG. 10, in the cover member 16, the angle A5 formed by the contact surface 45a of the lower portion 45 of the intermediate member 44 and the contact surface 46a of the upper portion 46 is the same as the angle A2.
In the cover member 16, the angle A3 formed by the first lower side portion 35 and the first upper side portion 37 (the angle A3 formed by the edge portion of the lateral side portion 39) is the contact surface of the lower portion 45 of the intermediate member 44. The angle is larger than the angle A5 formed by the contact surface 46a of the upper portion 46 and 45a.

(Third alternative form of carrying out the invention)
In the hand portion 20 shown in FIGS. 4, 5, 6 and 7, the hand portion 20 of (the first alternative embodiment of the invention) (the second alternative embodiment of the invention), the contact surface 31a of the first receiving portion 31 and The non-slip member 28 may be attached to both the contact surfaces 32a of the second receiving portion 32.
Instead of the flat plate-shaped non-slip member 28, a large number of convex portions may be attached to the contact surface 31a of the first receiving portion 31 as the non-slip member 28, and the contact surface 31a and the first receiving portion 31 may be attached. 2 It may be attached to both the contact surfaces 32a of the receiving portion 32.

(Fourth alternative form of carrying out the invention)
In the hand portion 20 shown in FIGS. 4, 5, 6 and 7, the hand portion 20 of (the first alternative embodiment of the invention) (the second alternative embodiment of the invention) (the third alternative embodiment of the invention). The first receiving portion 31, the lower portion of the cover member 16, and the lower portion 45 of the intermediate member 44 may be formed in an arc shape when viewed from the front.
Both the first receiving portion 31 and the second receiving portion 32, the entire cover member 16, the lower portion 45 and the upper portion 46 of the intermediate member 44 may be formed in an arc shape in a front view.

(Fifth alternative form of carrying out the invention)
In the receiving portion 15, the supporting portion 34 may be formed so as to extend laterally from the first receiving portion 31.
In this structure, the ascending operation switch 23 (lowering operation switch 24) is provided on the portion of the cover member 16 on the side of the first receiving portion 31 with respect to the thumb opening 43. The storage case 29 protrudes from the contact surface 32a of the second receiving portion 32 to the luggage B side, and protrudes from the contact surface 31a of the first receiving portion 31 to the luggage B side.

(Sixth Alternative Form of Implementation of the Invention)
In the assist device, the right and left arm portions 2 may be abolished and one arm portion 2 may be provided.
According to this structure, two wires 18 are extended from one arm portion 2, one of the two wires 18 is provided with the right hand portion 20, and the other of the two wires 18 is provided with the left hand portion. 20 is provided. Alternatively, one wire 18 is extended from one arm portion 2, the end portion of the one wire 18 is branched in a bifurcated shape, and the right hand portion 20 is provided on one side of the branch portion, and the branch portion is provided. On the other hand, the left hand portion 20 is provided.

The ascending operation switch 23 may be provided on the left hand portion 20, and the descending operation switch 24 may be provided on the right hand portion 20. Both the ascending operation switch 23 and the descending operation switch 24 may be provided on one of the right or left hand portions 20.

The assist device may be configured not to include the right and left leg action portions 3.
In the assist device, the elevating device 17, the ascending operation switch 23, and the descending operation switch 24 are abolished, the wires 18 and 19 are connected to the main body portion 1 and the arm portion 2, the position of the hand portion 20 is fixed, and the hand portion is fixed. It may be configured not to move up and down 20.

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

15 Receiving part 16 Cover member 18, 19 Suspension mechanism 23, 24 Manual elevating operation part 28 Non-slip member 29 Accommodating part 31 First receiving part 32 Second receiving part 31a, 32a Contact surface 31b, 32b Back side 39 Side part 41 Opening 42 Space 43 Thumb opening A1, A2 Angle B Luggage W1 1st width W2 2nd width

Claims (11)

It is a hand part for workers to hold luggage,
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion has a first receiving portion located on the lower side of the cargo and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected.
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening.
The angle formed by the contact surface of the first receiving portion with the luggage and the contact surface of the second receiving portion with the luggage is an obtuse angle.
The angle formed by the back surface side of the first receiving portion and the back surface side of the second receiving portion is an obtuse angle.
A hand portion for holding luggage in which the cover member is bent so as to be along the back surface side of the first receiving portion and the back surface side of the second receiving portion. It is a hand part for workers to hold luggage,
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion has a first receiving portion located on the lower side of the cargo and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected.
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening.
The angle formed by the contact surface of the first receiving portion with the luggage and the contact surface of the second receiving portion with the luggage is an obtuse angle.
In the portion of the cover member corresponding to the first receiving portion, the first width of the cover member in a direction orthogonal to the contact surface of the first receiving portion with the luggage, and
In the portion of the cover member corresponding to the second receiving portion, with respect to the second width of the cover member in a direction orthogonal to the contact surface of the second receiving portion with the load.
A hand portion for holding luggage in which the first width of the cover member is set to be smaller than the second width of the cover member. It is a hand part for workers to hold luggage,
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion has a first receiving portion located on the lower side of the cargo and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected.
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening.
A thumb opening for putting a thumb out of the space is provided on the lateral side of the cover member.
A manual lifting operation unit for operating the hanging mechanism is provided on the portion on the first receiving portion side with respect to the thumb opening.
A hand portion for holding a luggage, in which the accommodating portion accommodating the manual elevating operation portion protrudes toward the luggage side from the contact surface of the second receiving portion with the luggage. A hand part for workers to hold fluid luggage.
The hand part that holds the luggage is raised and lowered by the hanging mechanism.
A receiving portion for receiving the luggage and a cover member provided on the back surface side of the contact surface with the luggage in the receiving portion are provided.
The receiving portion includes a first receiving portion in which an inelastic plate material is bent and located on the lower side of the load, and a second receiving portion extending upward from the first receiving portion and to which the hanging mechanism is connected. Have and
The cover member is formed with an opening that opens upward, and a space for receiving the worker's hand is formed inside the opening, and the first receiving portion and the second receiving portion are formed. A hand part for holding luggage that holds the luggage in surface contact with the luggage. The hand portion for holding luggage according to any one of claims 1 to 2 and 4, wherein a thumb opening for ejecting a thumb from the space is provided on a lateral portion of the cover member. The hand portion for holding luggage according to claim 5, wherein a manual lifting operation portion for operating the hanging mechanism is provided on a portion on the side of the first receiving portion with respect to the thumb opening. The hand portion for holding luggage according to claim 6, wherein the accommodating portion accommodating the manual elevating operation portion protrudes from the contact surface of the second receiving portion with the luggage to the luggage side. The angle formed by the back surface side of the first receiving portion and the back surface side of the second receiving portion is an obtuse angle.
The hand portion for holding luggage according to any one of claims 2 to 7, wherein the cover member is bent along the back surface side of the first receiving portion and the back surface side of the second receiving portion. .. In the portion of the cover member corresponding to the first receiving portion, the first width of the cover member in a direction orthogonal to the contact surface of the first receiving portion and
In the portion of the cover member corresponding to the second receiving portion, with respect to the second width of the cover member in the direction orthogonal to the contact surface of the second receiving portion.
The hand portion for holding luggage according to any one of claims 1 and 3 to 8, wherein the first width of the cover member is set to be smaller than the second width of the cover member. The hand portion for holding a luggage according to any one of claims 1 to 9, wherein the non-slip member of the luggage is attached to the contact surface of the first receiving portion with the luggage. The invention according to any one of claims 3 to 10, wherein the angle formed by the contact surface of the first receiving portion with the luggage and the contact surface of the second receiving portion with the luggage is an obtuse angle. Hand part for holding luggage.

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