WO2022185888A1 - 車輪ロックシステムおよび搬送体 - Google Patents
車輪ロックシステムおよび搬送体 Download PDFInfo
- Publication number
- WO2022185888A1 WO2022185888A1 PCT/JP2022/005650 JP2022005650W WO2022185888A1 WO 2022185888 A1 WO2022185888 A1 WO 2022185888A1 JP 2022005650 W JP2022005650 W JP 2022005650W WO 2022185888 A1 WO2022185888 A1 WO 2022185888A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wheel
- shaft member
- outer peripheral
- linear body
- lock system
- Prior art date
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- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 230000007704 transition Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 140
- 230000004048 modification Effects 0.000 description 12
- 238000012986 modification Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0084—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on axle end
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0086—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on rim or side portion of tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0092—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism actuated remotely, e.g. by cable or electrically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
- B60B33/025—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using form-fit, e.g. front teeth
Definitions
- the technology disclosed in this specification relates to wheel lock systems and carriers.
- Casters with wheels are attached to the bottom of the suitcase.
- Various wheel lock systems capable of restricting (locking) the rotation of wheels of casters have been proposed in order to prevent unintended movement of a suitcase.
- a wheel lock system when the user performs a predetermined operation, a lock pin attached to the tip of the wire protrudes in a direction parallel to the rotation axis of the wheel and is inserted into a lock hole provided in the wheel.
- a system is known in which the rotation of the wheel about the rotation axis is restricted (see, for example, Patent Document 1).
- This specification discloses a technology capable of solving the above-described problems.
- the wheel lock system disclosed in the present specification includes a body and a shaft member supported by the body so as to be rotatable about a rotation axis and having a recess formed in at least a part of an outer peripheral surface about the rotation axis. a wheel that is fixed to the shaft member and rotates together with the shaft member; and a lock mechanism that switches between an unlocked state that allows rotation of the wheel and a locked state that restricts rotation of the wheel. .
- the lock mechanism has a linear body having a projection. The linear body is arranged so as to be able to press the convex portion against the outer peripheral surface of the shaft member on which the concave portion is formed.
- the projection is displaced as the linear body moves in a direction orthogonal to the rotation axis of the shaft member from the unlocked state in which the projection is not fitted in the recess. It is configured to transition to the locked state by fitting into the recess.
- the lock pin is inserted into the lock hole like the conventional wheel lock system because it is configured to transition from the unlocked state to the locked state by fitting the protrusion into the recess.
- the convex portion is fitted into the concave portion, thereby transitioning to the locked state.
- the rotation of the wheel is restricted.
- the lock mechanism moves the linear body in a direction orthogonal to the rotation axis of the shaft member from the locked state in which the protrusion is fitted in the recess.
- the convex portion is no longer fitted into the concave portion, so that the unlocked state may be obtained.
- this wheel lock system it is possible to reduce the amount of movement of the protrusion when unlocking the wheel, reduce the force required to unlock the wheel, and shorten the time required to unlock the wheel. can do.
- a plurality of recesses are formed in at least a portion of the outer peripheral surface of the shaft member, and the linear body is fittable in each of the plurality of recesses. It is good also as composition which has a plurality of convex parts. According to this wheel lock system, it is possible to achieve more reliable locking of the wheels.
- the linear body may include a core wire and an outer wire wound around the core wire and functioning as the protrusion. According to this wheel lock system, with a relatively simple configuration, it is possible to lock/unlock the wheel by fitting/disengaging the convex portion and the concave portion. An improvement in durability can be realized.
- the outer wire may be spirally wound around the core wire. According to this wheel lock system, with a simpler configuration, it is possible to lock/unlock the wheels by fitting/disengaging the protrusions and recesses, thereby further facilitating the manufacture of the wheel lock system. A further improvement in durability can be achieved.
- the linear body may have a core wire and a spherical body formed on the core wire and functioning as the projection. According to this wheel lock system, with a relatively simple configuration, it is possible to lock/unlock the wheel by fitting/disengaging the convex portion and the concave portion. An improvement in durability can be realized.
- the linear body may include a core wire and a rack member joined to an end of the core wire and formed with a plurality of teeth functioning as the protrusion.
- the carrier disclosed herein comprises the wheel lock system and a main body having the body of the wheel lock system attached to the bottom. According to the conveying body, it is possible to avoid troubles in unlocking the wheels for moving along the floor surface while supporting the conveying body, and at the same time, it is possible to avoid the occurrence of obstacles in unlocking the wheels. The amount of movement can be reduced, the force required to lock the wheels can be reduced, and the time required to lock the wheels can be shortened.
- FIG. 1 is a perspective view showing the detailed configuration of the wheel lock system 10 according to the first embodiment
- FIG. 1 is a perspective view showing the detailed configuration of the wheel lock system 10 according to the first embodiment
- FIG. 1 is a perspective view showing the detailed configuration of the wheel lock system 10 according to the first embodiment
- FIG. 2 is a side view showing a partial configuration of the wheel lock system 10 in an unlocked state according to the first embodiment
- FIG. 2 is a side view showing a partial configuration of the wheel lock system 10 in a locked state according to the first embodiment
- FIG. 1 is a perspective view showing the detailed configuration of the wheel lock system 10 according to the first embodiment
- FIG. 1 is a perspective view showing the detailed configuration of the wheel lock system 10 according to the first embodiment
- FIG. 2 is a side view showing a partial configuration of the wheel lock system 10 in an unlocked state according to the first embodiment
- FIG. 2 is a side view showing a partial configuration of the wheel lock system 10 in a locked state according to the first embodiment
- FIG. 2 is a perspective view showing the external configuration of the operation unit 126 and its surroundings; An exploded perspective view showing the internal configuration of the operation unit 126 and its surroundings. An exploded perspective view showing the internal configuration of the operation unit 126 and its surroundings.
- Explanatory diagram showing the operation of the operation unit 126 Explanatory drawing showing the external configuration of the operation unit 126 in the modified example of the first embodiment. Explanatory drawing showing the external configuration of the operation unit 126 in another modified example of the first embodiment. Explanatory drawing showing the configuration around the shaft member 132 in another modified example of the first embodiment.
- FIG. 11 is a side view showing a partial configuration of the wheel lock system 10a in the unlocked state according to the second embodiment;
- FIG. 11 is a side view showing a partial configuration of the wheel lock system 10a in a locked state according to the second embodiment;
- Explanatory drawing showing the configuration of a wheel lock system 10a in a modified example of the second embodiment.
- FIG. 11 is a side view showing a partial configuration of the wheel lock system 10a in the unlocked state according to the second embodiment
- FIG. 11 is a side view showing a partial configuration of the wheel lock system 10a in a locked state according to the second embodiment
- Explanatory drawing showing the configuration of a wheel lock system 10a in a modified example of the second embodiment.
- FIG. 11 is a side view showing a partial configuration of the wheel lock system 10b in the unlocked state according to the third embodiment; A side view showing a partial configuration of the wheel lock system 10b in a locked state according to the third embodiment.
- FIG. 2 is an explanatory diagram showing a configuration around a handle portion 220 of a trolley 200 to which the wheel lock system 10 disclosed in this specification is applied; Explanatory drawing showing the configuration of a stretcher 300 to which the wheel lock system 10 disclosed in this specification is applied.
- FIG. 1 is an explanatory diagram schematically showing the configuration of a suitcase 100 according to the first embodiment.
- Column A in FIG. 1 shows the exterior configuration of the suitcase 100 with the handle portion 120 to be described later pulled out
- column B in FIG. 1 shows the suitcase 100 with the handle portion 120 stored.
- An exterior configuration is shown.
- FIG. 1 also shows a part of the configuration that is not visible in the appearance of the suitcase 100 .
- the suitcase 100 is a carrier that is carried along the floor surface, and includes a main body portion 110, a handle portion 120, caster portions 130, and a lock mechanism 140.
- the caster part 130 and the lock mechanism 140 constitute the wheel lock system 10 .
- the suitcase 100 can take other postures.
- the main body part 110 is a box-like body for storing luggage, and is, for example, a substantially rectangular parallelepiped member.
- the handle portion 120 is a portion that is gripped when the suitcase 100 is lifted or transported along the floor.
- the handle portion 120 has two pole portions 124 and a grip portion 122 .
- Each pole portion 124 is, for example, a substantially quadrangular prism-shaped member, and is attached to the main body portion 110 so as to extend vertically.
- the grip portion 122 is, for example, a substantially cylindrical member, and is attached so as to extend over the upper ends of the two pole portions 124 .
- the grip portion 122 is provided with an operation portion 126 (to be described later) for operating the lock mechanism 140 .
- the handle portion 120 has two pole portions 124 extending upward from the upper surface of the body portion 110 (see column A in FIG. 1), and two pole portions 124 extending inside the body portion 110 or the body portion. It is configured to be switchable between a stored state (see column B in FIG. 1) stored in a storage space provided on the side surface of 110 .
- wheel lock system 10 includes caster portion 130 and lock mechanism 140 .
- Caster section 130 is attached to the bottom of body section 110 and has wheels 131 .
- the casters 130 support the main body 110 and smoothly move the suitcase 100 along the floor surface by rotating the wheels 131 .
- caster portions 130 are provided at each of the four corners of the bottom portion of the main body portion 110 .
- the lock mechanism 140 is a mechanism that switches between an unlocked state in which the wheels 131 of each caster portion 130 are allowed to rotate and a locked state in which the wheels 131 of each caster portion 130 are restricted from rotating.
- the lock mechanism 140 When the lock mechanism 140 is in the unlocked state, the suitcase 100 can be smoothly moved along the floor, and when the lock mechanism 140 is in the locked state, unintended movement of the suitcase 100 can be prevented. can.
- FIGS. 2 to 4 are perspective views showing the detailed configuration of the wheel lock system 10 in the first embodiment.
- FIGS. 2 to 4 in order to clearly show the configuration of the wheel lock system 10 (the caster portion 130 and the lock mechanism 140), a part of the configuration is transparently shown, and a part of the configuration is omitted. is doing.
- 2 and 3 show the lock mechanism 140 in the unlocked state
- FIG. 4 shows the lock mechanism 140 in the locked state.
- the caster part 130 includes a body 138, two wheels 131, and a shaft member 132.
- Each member constituting the caster portion 130 is made of resin or metal, for example.
- the body 138 is horizontally rotatably attached to the bottom of the main body 110 via a vertically extending support shaft 139 .
- the shaft member 132 has a substantially cylindrical central shaft member 133 and a substantially cylindrical outer peripheral shaft member 134 arranged so as to partially cover the outer peripheral surface of the central shaft member 133 .
- the outer peripheral shaft member 134 is fixed to the central shaft member 133 while being arranged concentrically with the central shaft member 133 . (The central shaft member 133 of) the shaft member 132 is supported by the body 138 so as to be rotatable around the horizontal rotation axis.
- a plurality of recesses 135 are formed in the outer peripheral surface of the outer peripheral shaft member 134 .
- the recess 135 is formed in at least a portion of the outer peripheral surface of the shaft member 132 around the rotation axis.
- a spiral groove is formed on the outer peripheral surface of the outer peripheral shaft member 134 , and each portion of the groove constitutes a plurality of recesses 135 .
- Each wheel 131 is a substantially disc-shaped member and is fixed to both ends of a central shaft member 133 of the shaft member 132 so as to be concentric with the shaft member 132 . Therefore, each wheel 131 rotates about the same axis as the shaft member 132 rotates about the rotation axis.
- each wheel 131 has an inner wheel 131i and an outer wheel 131o fixed to the inner wheel 131i so as to cover the outer circumference of the inner wheel 131i, and the inner wheel 131i is fixed to the central shaft member 133. ing.
- the lock mechanism 140 has a linear body 141 and a biasing member 144 .
- Linear body 141 has core wire 142 and outer wire 143 spirally wound around core wire 142 .
- the outer wire 143 is wound around a portion of the core wire 142 on the distal end side (lower end side), and both ends thereof are fixed to the core wire 142 by substantially spherical locking members 145 .
- the diameter and pitch of the outer wire 143 are set according to the width and pitch of the recess 135 formed in the outer peripheral surface of the outer peripheral shaft member 134 . That is, each portion of the outer wire 143 functions as a convex portion that can be fitted into each concave portion 135 formed on the outer peripheral surface of the outer peripheral shaft member 134 .
- the core wire 142 and the outer wire 143 are made of metal or resin, for example.
- the distal end of the linear body 141 (the portion where the outer wire 143 is arranged) is bent in a substantially arc shape so as to face the outer peripheral surface of the outer peripheral shaft member 134, and the outer wire 143 can be pressed against the outer peripheral surface. are placed in The remaining portion of linear body 141 is bent at a predetermined point, extends upward, passes through body 138 and support shaft 139, reaches inside body portion 110 (see FIG. 2), and further extends to handle portion 120. It extends through the interior of the pole portion 124 and the grip portion 122 to reach an operation portion 126 provided on the grip portion 122 (see FIG. 1).
- the biasing member 144 is formed of, for example, a plate spring, and is joined to the tip of the linear body 141 to bias the tip in a direction away from the outer peripheral surface of the outer peripheral shaft member 134 . .
- the lock mechanism 140 is in a state in which the outer wire 143 functioning as the projection of the linear body 141 is not fitted into the recess 135 formed in the outer peripheral surface of the outer peripheral shaft member 134 of the shaft member 132 , that is, the shaft member 132 (and the wheel 131 fixed to the shaft member 132) are allowed to rotate (the unlocked state described above), and the outer wire 143 functioning as the projection of the linear body 141 is fitted into the recess 135. , that is, the state in which the rotation of shaft member 132 (and wheel 131 fixed to shaft member 132) is restricted by linear body 141 (locked state described above). .
- FIG. 5 is a side view showing a partial configuration of the wheel lock system 10 in the unlocked state according to the first embodiment
- FIG. 6 is a partial configuration of the wheel lock system 10 in the locked state according to the first embodiment. It is a side view showing In the unlocked state (FIGS. 3 and 5), when the core wire 142 forming the linear body 141 receives a tensile load due to the operation of the operation portion 126, which will be described later, as shown in FIGS.
- the distal end portion of the body 141 (the portion where the outer wire 143 is arranged) approaches the outer peripheral surface of the outer peripheral shaft member 134 of the shaft member 132 against the biasing force of the biasing member 144 .
- the outer wire 143 as a projection is fitted into the recess 135 formed on the outer peripheral surface of the outer peripheral shaft member 134 and locked. That is, the lock mechanism 140 is configured so that the linear body 141 moves in the direction perpendicular to the rotation axis of the shaft member 132 (in FIGS. The projection (peripheral wire 143) is fitted into the recess 135 as it moves (toward the inside of the plane of the drawing), thereby transitioning to the locked state.
- the moving direction of the linear body 141 at this time approximately coincides with the tangential direction of the outer peripheral surface of the outer peripheral shaft member 134 .
- the lock mechanism 140 moves from the locked state in which the convex portion (peripheral wire 143) is fitted in the concave portion 135, so that the linear body 141 moves in the direction orthogonal to the rotation axis of the shaft member 132 (the paper surface of FIGS. 5 and 6). Inwardly), the convex portion (outer wire 143) is no longer fitted in the concave portion 135, thereby transitioning to the unlocked state.
- FIG. 7 is a perspective view showing the external configuration of the operating section 126 and its surroundings
- FIGS. 8 and 9 are exploded perspective views showing the internal configuration of the operating section 126 and its surroundings.
- the operating portion 126 is provided on the grip portion 122 of the handle portion 120 . More specifically, as shown in FIGS. 8 and 9, the grip portion 122 of the handle portion 120 includes an upper grip portion 122U forming the upper half of the grip portion 122 and a lower grip portion 122U forming the lower half of the grip portion 122.
- An operation part 126 is accommodated in an internal space of the grip part 122, which is formed by recesses formed in the upper grip part 122U and/or the lower grip part 122L.
- the operating section 126 includes a housing 21, a lid body 22, a dial 23, a pinion 24, a rack 25, and a positioning member 26.
- the housing 21 is a substantially rectangular parallelepiped box, and has an open top surface and one side surface.
- the lid 22 is a member that opens and closes the top surface of the housing 21 .
- the positioning member 26 is housed inside the housing 21, positions the dial 23 and the like, and secures a space for the dial 23 and the like to move.
- the dial 23 is a substantially disk-shaped member, and is rotatably housed in the housing 21 so that a part of the dial 23 is exposed from the side opening of the housing 21 .
- the outer peripheral surface of the portion of the dial 23 exposed from the housing 21 is processed (for example, grooved) to prevent slippage.
- the pinion 24 is a substantially disc-shaped member and has a plurality of teeth formed on its outer peripheral surface.
- the pinion 24 is housed and fixed in the inner space of the dial 23 and rotates as the dial 23 rotates.
- the rack 25 is a flexible, elongated member, and has a plurality of teeth formed on one side thereof. Each tooth of the rack 25 meshes with each tooth of the pinion 24, and when the pinion 24 rotates, the rack 25 slides axially.
- a core wire 142 forming a linear body 141 of the lock mechanism 140 is fixed to the end of the rack 25 .
- FIG. 10 is an explanatory diagram showing the operation of the operation unit 126.
- FIG. 10 Each column in FIG. 10 shows the positional relationship of each part when the operation unit 126 is operated, as viewed from above.
- a part of the configuration of the operation unit 126 is shown transparently or omitted from the illustration.
- the bottom surface of the housing 21 is formed with two protrusions 21X and 21Y extending upward.
- the dial 23 is formed with two holes 23X and 23Y.
- One hole 23X of the dial 23 has an arc-shaped portion centered on the rotation axis of the dial 23 (the portion extending from the 12 o'clock position to the 3 o'clock position in the state shown in column A of FIG.
- the other hole 23Y of the dial 23 is an arcuate portion centered on the rotational axis of the dial 23 when viewed from above (a portion extending from the 6 o'clock position to the 9 o'clock position in the state shown in column A of FIG. 10). ) and claw portions extending inwardly from both ends of the arcuate portion.
- One protrusion 21X formed in the housing 21 is inserted into one hole 23X formed in the dial 23, and the other protrusion 21Y formed in the housing 21 is formed in the dial 23. It is inserted into the other hole 23Y.
- the dial 23 is biased in a predetermined direction (in FIG. 10, the direction from the top to the bottom of the paper surface) by a biasing member (for example, a spring) not shown. Therefore, as shown in columns A and F of FIG.
- the protrusions 21X and 21Y fit into the claw portions of the holes 23X and 23Y, and the rotation of the dial 23 is restricted.
- FIG. 10 shows the state of the operation unit 126 when the lock mechanism 140 is in the unlocked state described above.
- the dial 23 is pushed upward on the paper surface, as shown in column B of FIG. , and moves to an arcuate portion, and the dial 23 is allowed to rotate.
- the dial 23 is rotated counterclockwise as shown in columns C to E of FIG. 25 moves in a direction that pulls the core wire 142 .
- a tensile load acts on the core wire 142 joined to the rack 25, and the lock mechanism 140 is brought into the locked state described above.
- the wheel lock system 10 applied to the suitcase 100 of the present embodiment includes the body 138, and is supported by the body 138 so as to be rotatable about the rotation axis, and at least part of the outer peripheral surface about the rotation axis.
- Lock mechanism 140 includes linear body 141 having outer wire 143 that functions as a projection.
- Linear body 141 is arranged so as to be able to press a convex portion (peripheral wire 143 ) against the outer peripheral surface of shaft member 132 in which concave portion 135 is formed.
- Locking mechanism 140 is configured such that linear body 141 moves in a direction orthogonal to the rotation axis of shaft member 132 from an unlocked state in which the convex portion (peripheral wire 143 ) is not fitted in concave portion 135 , and the convex portion (Peripheral wire 143 ) is fitted into recess 135 so as to transition to the locked state.
- the wheel lock system 10 of the present embodiment is configured such that the locked state is shifted from the unlocked state to the locked state by fitting the convex portion (peripheral wire 143 ) into the concave portion 135 .
- the convex portion (peripheral wire 143 )
- the convex portion (peripheral wire 143) moves into the concave portion 135. Since it is configured to transition to the locked state by fitting, by inserting the lock pin into the lock hole by protruding in a direction parallel to the rotation axis of the wheel like a conventional wheel lock system Compared to a configuration in which the rotation of the wheel is restricted, the amount of movement of the protrusion (peripheral wire 143) when locking the wheel 131 can be reduced, the force required to lock the wheel 131 is reduced, and , the time required to lock the wheels 131 can be shortened.
- the lock mechanism 140 moves the linear body 141 perpendicular to the rotation axis of the shaft member 132 from the locked state in which the convex portion (peripheral wire 143 ) is fitted in the concave portion 135 .
- the projection (peripheral wire 143) is no longer fitted in the recess 135 as it moves in the direction of movement, it is configured to transition to the unlocked state. Therefore, in the wheel lock system 10 of the present embodiment, the amount of movement of the protrusion (peripheral wire 143) when unlocking the wheel 131 can be reduced, and the force required to unlock the wheel 131 can be reduced. In addition, the time required to unlock the wheels 131 can be shortened.
- the linear body 141 of the lock mechanism 140 has a core wire 142 and an outer wire 143 wound around the core wire 142 and functioning as a projection. Therefore, according to the wheel lock system 10 of the present embodiment, the wheel 131 can be locked/unlocked by fitting/unfitting the projection (peripheral wire 143) and the recess 135 with a relatively simple configuration. This makes it possible to facilitate the manufacture of the wheel lock system 10 and improve its durability.
- the outer wire 143 is spirally wound around the outer circumference of the core wire 142, further facilitating the manufacture of the wheel lock system 10 and further improving durability. can be realized.
- a plurality of recesses 135 are formed in at least a portion of the outer peripheral surface of the shaft member 132, and the linear body 141 can be fitted into each of the plurality of recesses 135. It has a plurality of protrusions (a plurality of portions of the outer wire 143). Therefore, according to the wheel lock system 10 of the present embodiment, the wheels 131 can be locked more reliably.
- FIG. 11 is an explanatory diagram showing the external configuration of the operation unit 126 in the modified example of the first embodiment.
- the operation unit 126 is of a slide switch type instead of a dial type.
- application/release of a tensile load to core wire 142 constituting linear body 141 of lock mechanism 140 is switched in accordance with the operation of sliding the slide switch. state can be switched.
- FIG. 12 is an explanatory diagram showing the external configuration of the operation unit 126 in another modified example of the first embodiment.
- the operating portion 126 is of a lever type instead of a dial type.
- application/release of the tensile load to the core wire 142 constituting the linear body 141 of the lock mechanism 140 is switched according to the action of gripping/releasing the lever, and as a result, the wheel 131 is locked/unlocked. state can be switched.
- FIG. 13 is an explanatory diagram showing the configuration around the shaft member 132 in another modified example of the first embodiment.
- the rotation of the wheels 131 in one direction (direction R2 in FIG. 13) is restricted. Rotation in the direction R1) of is allowed.
- a second outer peripheral shaft member 34 is provided in addition to the outer peripheral shaft member 134 (hereinafter referred to as "first outer peripheral shaft member 134" in this modified example). mated.
- the second outer peripheral shaft member 34 has substantially the same diameter as the first outer peripheral shaft member 134, and the outer peripheral surface of the second outer peripheral shaft member 34 has the same diameter as the outer peripheral surface of the first outer peripheral shaft member 134.
- a spiral groove is formed.
- the first outer peripheral shaft member 134 is fixed to the central shaft member 133 and rotates together with the central shaft member 133 .
- the second outer peripheral shaft member 34 is supported by the central shaft member 133 via a one-way bearing, and rotates freely relative to the central shaft member 133 in the direction R1 in FIG. can only rotate together with the central shaft member 133 .
- wheels 131 are fixed to both ends of the central shaft member 133 .
- Second embodiment 14 to 16 are perspective views showing the detailed configuration of the wheel lock system 10a (caster portion 130a and lock mechanism 140a) according to the second embodiment.
- the same configurations as those of the wheel lock system 10 of the first embodiment described above are denoted by the same reference numerals, and descriptions thereof will be omitted as appropriate.
- a caster portion 130a in the second embodiment includes a body 138, two wheels 131, and a shaft member 132a, as in the first embodiment.
- the shaft member 132 a has a substantially cylindrical central shaft member 133 and a substantially cylindrical outer peripheral shaft member 134 a arranged so as to partially cover the outer peripheral surface of the central shaft member 133 .
- a plurality of recesses 135a are formed in the outer peripheral surface of the outer peripheral shaft member 134a.
- each recess 135a formed in the outer peripheral surface of the outer peripheral shaft member 134a is formed in a bowl shape.
- the lock mechanism 140a in the second embodiment has a linear body 141a and a biasing member 144a, as in the first embodiment.
- linear body 141 a has core wire 142 and spherical body 146 formed on core wire 142 .
- a spherical body 146 is joined to the distal end of the core wire 142 .
- the diameter of the spherical body 146 is set according to the diameter of the recess 135a formed in the outer peripheral surface of the outer peripheral shaft member 134a. That is, the spherical body 146 functions as a convex portion that can be fitted into the concave portion 135a formed on the outer peripheral surface of the outer peripheral shaft member 134a.
- the tip of the linear body 141a (the part where the spherical body 146 is arranged) is arranged so as to face the outer peripheral surface of the outer peripheral shaft member 134a so that the spherical body 146 can be pressed against the outer peripheral surface. Further, the biasing member 144a is joined to the tip portion of the linear body 141a and biases the tip portion away from the outer peripheral surface of the outer peripheral shaft member 134a.
- the lock mechanism 140a is in a state where the spherical body 146 functioning as the projection of the linear body 141a is not fitted into the recess 135a formed in the outer peripheral surface of the outer peripheral shaft member 134a of the shaft member 132a. (and the wheel 131 fixed to the shaft member 132a) are allowed to rotate (unlocked state), and the spherical body 146 functioning as the projection of the linear body 141a is fitted into the recess 135a. It is configured to switch between a state (locked state) in which the rotation of the shaft member 132a (and the wheel 131 fixed to the shaft member 132a) is restricted by the linear body 141a.
- FIG. 17 is a side view showing a partial configuration of the wheel locking system 10a in the unlocked state according to the second embodiment
- FIG. 18 is a partial configuration of the wheel locking system 10a in the locked state according to the second embodiment.
- It is a side view showing In the unlocked state (FIGS. 15 and 17), when the core wire 142 forming the linear body 141a receives a tensile load due to the operation of the operating portion 126 as in the first embodiment, the load is shown in FIGS. 16 and 18.
- the tip of the linear body 141a (the part where the spherical body 146 is arranged) approaches the outer peripheral surface of the outer peripheral shaft member 134a of the shaft member 132a against the biasing force of the biasing member 144a.
- the spherical body 146 as a convex portion is fitted into the concave portion 135a formed in the outer peripheral surface of the outer peripheral shaft member 134a to be locked. That is, the lock mechanism 140a moves from the unlocked state in which the convex portion (spherical body 146) is not fitted to the concave portion 135a so that the linear body 141a rotates in the direction orthogonal to the rotation axis of the shaft member 132a (FIGS. 17 and 18).
- the projection (spherical body 146) is fitted into the recess 135a as it moves (toward the inside of the plane of the paper), thereby transitioning to the locked state.
- the moving direction of the linear body 141a at this time approximately coincides with the tangential direction of the outer peripheral surface of the outer peripheral shaft member 134a.
- the locked state when the core wire 142 constituting the linear body 141a no longer receives the tensile load due to the operation of the operating portion 126 similar to that of the first embodiment, As shown in 17, the distal end portion of the linear body 141a (the portion where the spherical body 146 is arranged) is separated from the outer peripheral surface of the outer peripheral shaft member 134a of the shaft member 132a by the biasing force of the biasing member 144a. As a result, the unlocked state is achieved in which the spherical body 146 as the convex portion is not fitted in the concave portion 135a formed in the outer peripheral surface of the outer peripheral shaft member 134a.
- the lock mechanism 140a moves from the locked state in which the convex portion (spherical body 146) is fitted into the concave portion 135a so that the linear body 141a moves in the direction perpendicular to the rotation axis of the shaft member 132a (the paper surface of FIGS. 17 and 18). Inward movement) causes the projection (spherical body 146) to no longer fit into the recess 135a, thereby transitioning to the unlocked state.
- the lock mechanism 140a has a convex portion (spherical body 146) fitted into the concave portion 135a.
- the convex part (spherical body 146) fits into the concave part 135a from the unlocked state, thereby transitioning to the locked state. Therefore, it is possible to reduce the possibility that the convex portion (spherical body 146) is fixed to the concave portion 135a, and it is possible to avoid any trouble in unlocking.
- it is possible to reduce the amount of movement of the projection (spherical body 146) when locking the wheel 131 reduce the force required to lock the wheel 131, and shorten the time required to lock the wheel 131. be able to.
- the linear body 141a of the lock mechanism 140a has a core wire 142 and a spherical body 146 formed on the core wire 142 and functioning as a projection. Therefore, according to the wheel lock system 10a of the second embodiment, the wheel 131 can be locked/unlocked by fitting/unfitting the projection (spherical body 146) and the recess 135a with a relatively simple configuration. It is possible to realize simplification of manufacture and improvement in durability of the wheel lock system 10a.
- FIG. 19 is an explanatory diagram showing the configuration of a wheel lock system 10a in a modified example of the second embodiment.
- linear body 141 a has a plurality of (three in the example of FIG. 19) spherical bodies 146 formed on core wire 142 .
- the pitch of the spherical bodies 146 is set to match the pitch of the recesses 135a formed on the outer peripheral surface of the outer peripheral shaft member 134a. That is, each of the plurality of spherical bodies 146 functions as a convex portion that can be fitted into each of the plurality of concave portions 135a formed on the outer peripheral surface of the outer peripheral shaft member 134a.
- FIG. 19 is an explanatory diagram showing the configuration of a wheel lock system 10a in a modified example of the second embodiment.
- linear body 141 a has a plurality of (three in the example of FIG. 19) spherical bodies 146 formed on core wire 142 .
- a plurality of recesses 135a are formed in at least a portion of the outer peripheral surface of the shaft member 132a, and the linear body 141a includes a plurality of protrusions that can be fitted into the plurality of recesses 135a. Since it has (a plurality of spherical bodies 146), more reliable locking of the wheel 131 can be realized.
- Third embodiment 20 to 22 are perspective views showing the detailed configuration of the wheel lock system 10b (caster portion 130b and lock mechanism 140b) in the third embodiment.
- the configurations that are the same as those of the wheel lock system 10 of the above-described first embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
- a caster portion 130b in the third embodiment includes a body 138, two wheels 131, and a shaft member 132b, as in the first embodiment.
- the shaft member 132 b has a substantially cylindrical central shaft member 133 and a substantially cylindrical outer peripheral shaft member 134 b arranged so as to partially cover the outer peripheral surface of the central shaft member 133 .
- a plurality of recesses 135b are formed in the outer peripheral surface of the outer peripheral shaft member 134b.
- a plurality of teeth are formed along the entire circumference of the outer peripheral surface of the outer peripheral shaft member 134b.
- the lock mechanism 140b in the third embodiment has a linear body 141b.
- linear body 141 b has core wire 142 and rack member 148 joined to the end of core wire 142 .
- One side surface of the rack member 148 is formed with a plurality of teeth 149 that mesh with the outer peripheral surface of the outer peripheral shaft member 134b. That is, the teeth 149 of the rack member 148 function as projections that can fit into the recesses 135b formed on the outer peripheral surface of the outer peripheral shaft member 134b.
- the tip of the linear body 141b (the portion where the rack member 148 is arranged) is arranged so as to face the outer peripheral surface of the outer peripheral shaft member 134b so as to be able to press the one side surface of the rack member 148 against the outer peripheral surface. ing. That is, the rack member 148 is flexible, and when no tensile load is applied to the core wire 142, the rack member 148 is separated from the outer peripheral surface of the outer peripheral shaft member 134b. is applied, the rack member 148 is elastically deformed so that the tooth 149 of the rack member 148 and the concave portion 135b of the outer peripheral shaft member 134b are fitted.
- the tooth profile of the teeth 149 of the rack member 148 and the positional relationship between the plurality of teeth 149 can change according to the deformation of the rack member 148 . Therefore, in this embodiment, the tooth profile of the outer peripheral surface of the outer peripheral shaft member 134b is not a tooth profile using a general involute curve, but a tooth profile designed according to the teeth 149 after deformation of the rack member 148. Also, the corners of the teeth 149 of the rack member 148 and the teeth of the outer peripheral surface of the outer peripheral shaft member 134b may be rounded.
- the lock mechanism 140b is in a state in which the teeth 149 of the rack member 148 functioning as the projections of the linear body 141b are not fitted into the recesses 135b formed in the outer peripheral surface of the outer peripheral shaft member 134b of the shaft member 132b, that is, A state (unlocked state) in which the shaft member 132b (and the wheel 131 fixed to the shaft member 132b) is allowed to rotate, and a tooth 149 of the rack member 148 functioning as a convex portion of the linear body 141b is aligned with the concave portion 135b. that is, the state in which the rotation of the shaft member 132b (and the wheel 131 fixed to the shaft member 132b) is restricted by the linear body 141b (locked state). ing.
- FIG. 23 is a side view showing the configuration of part of the wheel lock system 10b in the unlocked state according to the third embodiment
- FIG. 24 is the configuration of part of the wheel lock system 10b in the locked state according to the third embodiment. It is a side view showing In the unlocked state (FIGS. 21 and 23), when the core wire 142 forming the linear body 141b receives a tensile load due to the operation of the operating portion 126 as in the first embodiment, the load shown in FIGS. 22 and 24 is shown. , the tip of the linear body 141b (the portion where the rack member 148 is arranged) is elastically deformed and approaches the outer peripheral surface of the outer peripheral shaft member 134b of the shaft member 132b.
- the teeth 149 of the rack member 148 as projections are fitted into the recesses 135b formed in the outer peripheral surface of the outer peripheral shaft member 134b to be locked. That is, the lock mechanism 140b moves from the unlocked state in which the protrusion (the tooth 149 of the rack member 148) is not fitted to the recess 135b, so that the linear body 141b moves in the direction perpendicular to the rotation axis of the shaft member 132b (FIGS. 23 and 23). 24), the protrusions (the teeth 149 of the rack member 148) are fitted into the recesses 135b, thereby transitioning to the locked state.
- the moving direction of the linear body 141b at this time approximately coincides with the tangential direction of the outer peripheral surface of the outer peripheral shaft member 134b.
- the tip portion of the linear body 141b (the portion where the rack member 148 is arranged) is deformed so as to return to the initial state and is separated from the outer peripheral surface of the outer peripheral shaft member 134b of the shaft member 132b.
- the unlocked state is achieved in which the teeth 149 of the rack member 148, which are projections, are not fitted in the recesses 135b formed on the outer peripheral surface of the outer peripheral shaft member 134b.
- the lock mechanism 140b moves from the locked state in which the convex portion (the tooth 149 of the rack member 148) is fitted into the concave portion 135b, so that the linear body 141b moves in the direction perpendicular to the rotation axis of the shaft member 132b (FIGS. 23 and 23). 24), the protrusions (teeth 149 of the rack member 148) are no longer fitted in the recesses 135b, thereby transitioning to the unlocked state.
- the lock mechanism 140b is configured so that the projection (the tooth 149 of the rack member 148) fits into the recess 135b.
- the linear body 141b moves in the direction orthogonal to the rotation axis of the shaft member 132b from the unlocked state in which it is not engaged, the protrusion (the tooth 149 of the rack member 148) is fitted into the recess 135b. Since it is configured to transition to the locked state, it is possible to reduce the possibility that the convex portion (the tooth 149 of the rack member 148) is fixed to the concave portion 135b, thereby avoiding the problem of unlocking. can be done.
- the amount of movement of the protrusion (the tooth 149 of the rack member 148) when locking the wheels 131 can be reduced, the force required to lock the wheels 131 can be reduced, and the time required to lock the wheels 131 can be reduced. can be shortened.
- the linear body 141b of the lock mechanism 140b is joined to the core wire 142 and the end of the core wire 142, and the rack is formed with a plurality of teeth 149 functioning as convex portions. and a member 148 . Therefore, according to the wheel lock system 10b of the third embodiment, the wheel 131 can be locked/unlocked by fitting/unfitting the projection (the tooth 149 of the rack member 148) and the recess 135b with a relatively simple configuration. Release can be realized, and the wheel lock system 10b can be easily manufactured and improved in durability.
- a plurality of recesses 135b are formed in at least a portion of the outer peripheral surface of the shaft member 132b, and the linear body 141b can be fitted into each of the plurality of recesses 135b. Since it has a plurality of projections (the teeth 149 of the rack member 148), it is possible to lock the wheels 131 more reliably.
- each caster portion 130 includes two wheels 131, but the number of wheels 131 included in each caster portion 130 may be one, or three or more. good.
- the installation position of the operation unit 126 may be another position.
- the installation position of linear body 141 (core wire 142) constituting lock mechanism 140 may also be changed.
- the linear body 141 is composed of the core wire 142 and the outer wire 143 spirally wound around the core wire 142.
- the linear body 141 is composed of the core wire 142, It may be composed of one or a plurality of outer wires wound around the outer circumference of the core wire 142 in a manner other than spiral.
- the configuration may be utilized independently of locking mechanism 140 alone. That is, in the modified example, the wheels 131 are fixed in the locked state (there is no configuration for switching to the unlocked state), and the rotation of one of the wheels 131 is restricted while the other of the wheels 131 is rotated. It can be used alone as a configuration that allows rotation in the rotational direction.
- FIG. 25 is an explanatory diagram showing the configuration of a bogie 200 to which the wheel lock system 10 disclosed in this specification is applied.
- the carriage 200 is a carrier that is carried along the floor surface, and includes a main body portion 210, a handle portion 220, and a wheel lock system 10 (caster portion 130 and lock mechanism 140).
- the configuration of the wheel lock system 10 provided on the truck 200 is the same as the configuration of the wheel lock system 10 of the above embodiment.
- the handle portion 220 of the carriage 200 is attached with an operation portion 126 having the same configuration as in the above-described embodiment.
- FIG. 27 is an explanatory diagram showing the configuration of a stretcher 300 to which the wheel lock system 10 disclosed in this specification is applied.
- the stretcher 300 is a transport body that is transported along the floor surface, and includes a main body portion 310, a handle portion 320, and a wheel lock system 10 (caster portions 130 and lock mechanisms 140).
- the configuration of the wheel lock system 10 provided in the stretcher 300 is the same as the configuration of the wheel lock system 10 of the above embodiment.
- the handle portion 320 of the stretcher 300 is attached with an operating portion 126 having the same configuration as in the above embodiment.
- Wheel lock system 21 Housing 21X, 21Y: Projection 22: Lid 23: Dial 23X, 23Y: Hole 24: Pinion 25: Rack 26: Positioning member 34: Second outer peripheral shaft member 100: Suitcase 110 : Body part 120: Handle part 122: Grip part 122L: Lower grip part 122U: Upper grip part 124: Pole part 126: Operation part 130: Caster part 131: Wheel 131i: Inner wheel 131o: Outer wheel 132: Shaft member 133: Central shaft member 134: Peripheral shaft member 135: Recess 138: Body 139: Support shaft 140: Locking mechanism 141: Linear body 142: Core wire 143: Peripheral wire 144: Biasing member 145: Locking member 146: Spherical body 148: Rack member 149: Teeth 200: Carriage 210: Body portion 220: Handle portion 300: Stretcher 310: Body portion 320: Handle portion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Legs For Furniture In General (AREA)
Abstract
Description
A-1.スーツケース100の構成:
図1は、第1実施形態におけるスーツケース100の構成を概略的に示す説明図である。図1のA欄には、後述するハンドル部120を引き出した状態のスーツケース100の外観構成が示されており、図1のB欄には、ハンドル部120を収納した状態のスーツケース100の外観構成が示されている。なお、図1では、説明の便宜上、スーツケース100の外観に表れない一部の構成についても図示している。
上述したように、車輪ロックシステム10は、キャスター部130とロック機構140とを備えている。キャスター部130は、本体部110の底部に取り付けられており、車輪131を有する。キャスター部130は、本体部110を支持しつつ、車輪131が回転することによってスーツケース100を床面に沿って円滑に移動させる。本実施形態では、本体部110の底部の四隅のそれぞれに、キャスター部130が設けられている。
図7は、操作部126およびその周辺の外観構成を示す斜視図であり、図8および図9は、操作部126およびその周辺の内部構成を示す分解斜視図である。上述したように、操作部126は、ハンドル部120のグリップ部122に設けられている。より詳細には、図8および図9に示すように、ハンドル部120のグリップ部122は、グリップ部122の上側半分を構成する上部グリップ部122Uと、グリップ部122の下側半分を構成する下部グリップ部122Lとから構成されており、上部グリップ部122Uおよび/または下部グリップ部122Lに形成された凹部により構成されるグリップ部122の内部空間内に、操作部126が収容されている。
以上説明したように、本実施形態のスーツケース100に適用される車輪ロックシステム10は、ボディ138と、回転軸廻りに回転可能にボディ138に支持され、回転軸廻りの外周面の少なくとも一部に凹部135が形成された軸部材132と、軸部材132に固定されて軸部材132と共に回転する車輪131と、車輪131の回転を許容するロック解除状態と、車輪131の回転を規制するロック状態と、の間で切り替わるロック機構140とを備える。ロック機構140は、凸部として機能する外周ワイヤ143を有する線状体141を備える。線状体141は、軸部材132の凹部135が形成された外周面に凸部(外周ワイヤ143)を押圧可能に配置されている。ロック機構140は、凸部(外周ワイヤ143)が凹部135に嵌合していないロック解除状態から、線状体141が軸部材132の回転軸に直交する方向へ移動することに伴って凸部(外周ワイヤ143)が凹部135に嵌合することにより、ロック状態に遷移するように構成されている。
図11は、第1実施形態の変形例における操作部126の外観構成を示す説明図である。図11に示す変形例では、操作部126が、ダイアル式ではなく、スライドスイッチ式となっている。この変形例では、スライドスイッチをスライドさせる動作に伴い、ロック機構140の線状体141を構成するコアワイヤ142への引張荷重の印加/解除が切り替えられ、その結果、車輪131のロック状態/ロック解除状態が切り替えられる。
図14から図16は、第2実施形態における車輪ロックシステム10a(キャスター部130aおよびロック機構140a)の詳細構成を示す斜視図である。以下では、第2実施形態の車輪ロックシステム10aの構成のうち、上述した第1実施形態の車輪ロックシステム10と同一の構成については、同一の符号を付すことによってその説明を適宜省略する。
図20から図22は、第3実施形態における車輪ロックシステム10b(キャスター部130bおよびロック機構140b)の詳細構成を示す斜視図である。以下では、第3実施形態の車輪ロックシステム10bの構成のうち、上述した第1実施形態の車輪ロックシステム10と同一の構成については、同一の符号を付すことによってその説明を適宜省略する。
本明細書で開示される技術は、上述の実施形態に限られるものではなく、その要旨を逸脱しない範囲において種々の形態に変形することができ、例えば次のような変形も可能である。
Claims (8)
- 車輪ロックシステムであって、
ボディと、
回転軸廻りに回転可能に前記ボディに支持され、前記回転軸廻りの外周面の少なくとも一部に凹部が形成された軸部材と、
前記軸部材に固定されて前記軸部材と共に回転する車輪と、
前記車輪の回転を許容するロック解除状態と、前記車輪の回転を規制するロック状態と、の間で切り替わるロック機構と、
を備え、
前記ロック機構は、凸部を有する線状体を有し、前記線状体は、前記軸部材の前記凹部が形成された前記外周面に前記凸部を押圧可能に配置され、前記凸部が前記凹部に嵌合していない前記ロック解除状態から、前記線状体が前記軸部材の前記回転軸に直交する方向へ移動することに伴って前記凸部が前記凹部に嵌合することにより、前記ロック状態に遷移するように構成されている、車輪ロックシステム。 - 請求項1に記載の車輪ロックシステムであって、
前記ロック機構は、前記凸部が前記凹部に嵌合している前記ロック状態から、前記線状体が前記軸部材の前記回転軸に直交する方向へ移動することに伴って前記凸部が前記凹部に嵌合しなくなることにより、前記ロック解除状態に遷移するように構成されている、車輪ロックシステム。 - 請求項1または請求項2に記載の車輪ロックシステムであって、
前記軸部材の前記外周面の少なくとも一部には、複数の前記凹部が形成されており、
前記線状体は、複数の前記凹部のそれぞれに嵌合可能な複数の前記凸部を有する、車輪ロックシステム。 - 請求項1から請求項3までのいずれか一項に記載の車輪ロックシステムであって、
前記線状体は、
コアワイヤと、
前記コアワイヤの外周に巻かれ、前記凸部として機能する外周ワイヤと、
を有する、車輪ロックシステム。 - 請求項4に記載の車輪ロックシステムであって、
前記外周ワイヤは、前記コアワイヤの外周に螺旋状に巻き回しされている、車輪ロックシステム。 - 請求項1から請求項3までのいずれか一項に記載の車輪ロックシステムであって、
前記線状体は、
コアワイヤと、
前記コアワイヤ上に形成され、前記凸部として機能する球状体と、
を有する、車輪ロックシステム。 - 請求項1から請求項3までのいずれか一項に記載の車輪ロックシステムであって、
前記線状体は、
コアワイヤと、
前記コアワイヤの端部に接合され、前記凸部として機能する複数の歯が形成されたラック部材と、
を有する、車輪ロックシステム。 - 請求項1から請求項7までのいずれか一項に記載の車輪ロックシステムと、
底部に前記車輪ロックシステムの前記ボディが取り付けられた本体部と、
を備える、搬送体。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP22762945.8A EP4303034A1 (en) | 2021-03-01 | 2022-02-14 | Wheel lock system and conveyance body |
CN202280018491.5A CN116940473A (zh) | 2021-03-01 | 2022-02-14 | 车轮锁定系统以及搬运体 |
US18/459,052 US20240017570A1 (en) | 2021-03-01 | 2023-08-31 | Wheel lock systems and carriers |
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JP2021-031398 | 2021-03-01 | ||
JP2021031398A JP2022132765A (ja) | 2021-03-01 | 2021-03-01 | 車輪ロックシステムおよび搬送体 |
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US18/459,052 Continuation US20240017570A1 (en) | 2021-03-01 | 2023-08-31 | Wheel lock systems and carriers |
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WO2022185888A1 true WO2022185888A1 (ja) | 2022-09-09 |
Family
ID=83154065
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PCT/JP2022/005650 WO2022185888A1 (ja) | 2021-03-01 | 2022-02-14 | 車輪ロックシステムおよび搬送体 |
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US (1) | US20240017570A1 (ja) |
EP (1) | EP4303034A1 (ja) |
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JPS574404A (en) * | 1980-06-05 | 1982-01-11 | Mitsubishi Electric Corp | Golf cart |
JP2001001703A (ja) * | 1999-06-22 | 2001-01-09 | Nansin Co Ltd | ロック機構を備えた双輪キャスタ |
US6510927B1 (en) | 2001-12-11 | 2003-01-28 | Sports World Enterprise Co., Ltd. | Locking device for wheels of a golf cart |
JP2006240422A (ja) * | 2005-03-02 | 2006-09-14 | Shiyousuke Sakai | ブレーキ装置、このブレーキ装置を設けたキャスター装置及びこのキャスター装置を備えた運搬車 |
JP2008137630A (ja) * | 2006-07-06 | 2008-06-19 | Naigai:Kk | キャスタ制動装置 |
JP2010195129A (ja) * | 2009-02-24 | 2010-09-09 | Takano Co Ltd | ブレーキ並びにこれを備える歩行補助具 |
JP2012025331A (ja) | 2010-07-27 | 2012-02-09 | Naigai:Kk | 制動キャスタ装置 |
US8522397B1 (en) | 2012-03-28 | 2013-09-03 | Po-Chuan Tsai | Castor that is controlled by a wire to brake and stop rotating simultaneously |
-
2021
- 2021-03-01 JP JP2021031398A patent/JP2022132765A/ja active Pending
-
2022
- 2022-02-14 CN CN202280018491.5A patent/CN116940473A/zh active Pending
- 2022-02-14 EP EP22762945.8A patent/EP4303034A1/en active Pending
- 2022-02-14 WO PCT/JP2022/005650 patent/WO2022185888A1/ja active Application Filing
-
2023
- 2023-08-31 US US18/459,052 patent/US20240017570A1/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS574404A (en) * | 1980-06-05 | 1982-01-11 | Mitsubishi Electric Corp | Golf cart |
JP2001001703A (ja) * | 1999-06-22 | 2001-01-09 | Nansin Co Ltd | ロック機構を備えた双輪キャスタ |
US6510927B1 (en) | 2001-12-11 | 2003-01-28 | Sports World Enterprise Co., Ltd. | Locking device for wheels of a golf cart |
JP2006240422A (ja) * | 2005-03-02 | 2006-09-14 | Shiyousuke Sakai | ブレーキ装置、このブレーキ装置を設けたキャスター装置及びこのキャスター装置を備えた運搬車 |
JP2008137630A (ja) * | 2006-07-06 | 2008-06-19 | Naigai:Kk | キャスタ制動装置 |
JP2010195129A (ja) * | 2009-02-24 | 2010-09-09 | Takano Co Ltd | ブレーキ並びにこれを備える歩行補助具 |
JP2012025331A (ja) | 2010-07-27 | 2012-02-09 | Naigai:Kk | 制動キャスタ装置 |
US8522397B1 (en) | 2012-03-28 | 2013-09-03 | Po-Chuan Tsai | Castor that is controlled by a wire to brake and stop rotating simultaneously |
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EP4303034A1 (en) | 2024-01-10 |
CN116940473A (zh) | 2023-10-24 |
JP2022132765A (ja) | 2022-09-13 |
US20240017570A1 (en) | 2024-01-18 |
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