WO2017047370A1 - ゼンマイ式駆動装置及び自走キャスター - Google Patents
ゼンマイ式駆動装置及び自走キャスター Download PDFInfo
- Publication number
- WO2017047370A1 WO2017047370A1 PCT/JP2016/075268 JP2016075268W WO2017047370A1 WO 2017047370 A1 WO2017047370 A1 WO 2017047370A1 JP 2016075268 W JP2016075268 W JP 2016075268W WO 2017047370 A1 WO2017047370 A1 WO 2017047370A1
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- WIPO (PCT)
- Prior art keywords
- mainspring
- casing
- concave portion
- driving device
- output shaft
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G1/00—Spring motors
- F03G1/02—Spring motors characterised by shape or material of spring, e.g. helical, spiral, coil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G1/00—Spring motors
- F03G1/02—Spring motors characterised by shape or material of spring, e.g. helical, spiral, coil
- F03G1/022—Spring motors characterised by shape or material of spring, e.g. helical, spiral, coil using spiral springs
-
- 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
-
- 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
- B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
- B60B33/0039—Single wheels
-
- 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
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
-
- 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
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
- B60B33/045—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted resiliently, by means of dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G1/00—Spring motors
- F03G1/06—Other parts or details
- F03G1/08—Other parts or details for winding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2200/00—Type of product being used or applied
- B60B2200/40—Articles of daily use
- B60B2200/43—Carts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2380/00—Bearings
- B60B2380/10—Type
- B60B2380/16—Needle bearings
-
- 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
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0063—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism no swivelling action, i.e. no real caster
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/25—Wheel arrangements; Steering; Stability; Wheel suspension characterised by the ground engaging elements, e.g. wheel type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
Definitions
- the present invention relates to a mainspring-type drive device and a self-propelled caster that can be used as a power source for a work cart or a belt conveyor used mainly in factories.
- Patent Document 1 As a driving device using a spring, for example, as in Patent Document 1, there is a manually wound spring driving unit used for a toy such as a walking doll toy.
- the present invention has been made in view of the above problems, and an object thereof is to provide a compact spring-type drive device and a self-propelled caster.
- the present invention provides: A casing, An output shaft that includes a drive unit that is partly housed in the casing, is rotatably attached to the casing, and extends to the outside of the casing; A one-way clutch externally fitted to the output shaft in the casing; A spring that is housed in the casing, has a radially inner end fixed to the outer ring of the one-way clutch, and is wound when the output shaft rotates in the torque transmission direction of the one-way clutch.
- a mainspring type driving device characterized by having the mainspring driving device.
- the present invention A one-way clutch into which the output shaft is inserted; A cylindrical bush fitted around the one-way clutch; A spring that is fixed when the radially inner end is fixed to the bush and the output shaft rotates in the torque transmission direction of the one-way clutch; A spring-type drive device comprising: a casing that houses the one-way clutch, the bush, and the spring and includes a position defining portion that surrounds an axial end portion of the bush from a radially outer side. To do.
- the casing has a peripheral wall provided with a plurality of recesses in a radially inner portion facing the outer peripheral surface of the mainspring,
- the radially outer end of the mainspring includes a convex portion that protrudes radially outward and fits into the concave portion, When the mainspring is tightened, the convex portion is fitted into the concave portion up to a predetermined amount of tightening, and is released from the concave portion when the output shaft rotates beyond the predetermined amount of tightening.
- the convex portion extends in a substantially radial direction of the mainspring and forms a contact surface that contacts the concave portion.
- the concave portion has a size such that the convex portion is released from the concave portion after the mainspring is wound up to the maximum number of rotations of the mainspring.
- the convex portion has a shape that is released from the concave portion after the mainspring is wound up to the maximum number of rotations of the mainspring.
- a T-groove is formed outside the casing.
- the casing includes an opening that allows the inside of the casing to be observed.
- the present invention A casing, A rotating shaft partially accommodated in the casing and attached to the casing for relative rotation; A one-way clutch externally fitted to the rotating shaft in the casing; A spring that is housed in the casing, has a radially inner end fixed to the outer ring of the one-way clutch, and is wound when the rotating shaft rotates in the torque transmission direction of the one-way clutch; A support fixed to the casing; An output shaft that is attached to the support portion so as to be relatively rotatable in a direction substantially parallel to the rotation shaft and drives a driven member; And a torque transmission mechanism that transmits torque of the rotating shaft to the output shaft.
- the output shaft is a hollow shaft.
- flange member formed in a cylindrical shape having a common center axis with the output shaft, and having a flange rising from the support portion and extending radially outward.
- the casing has a peripheral wall provided with a plurality of recesses in a radially inner portion facing the outer peripheral surface of the spring.
- the radially outer end of the mainspring includes a convex portion that protrudes radially outward and fits into the concave portion, When the mainspring is tightened, the convex portion is fitted into the concave portion up to a predetermined amount of tightening, and is released from the concave portion when the rotating shaft rotates beyond the predetermined amount of tightening.
- the convex portion extends in a substantially radial direction of the mainspring and forms a contact surface that contacts the concave portion.
- the concave portion has a size such that the convex portion is released from the concave portion after the mainspring is wound up to the maximum number of rotations of the mainspring.
- the convex portion has a shape that is released from the concave portion after the mainspring is wound up to the maximum number of rotations of the mainspring.
- a T-groove is formed outside the casing.
- the casing includes an opening that allows the inside of the casing to be observed.
- a casing having a cylindrical outer peripheral surface; A tire fixed radially outward of the casing; A central axis partly housed in the casing, attached to the casing for relative rotation, and partly extending outside the casing; A one-way clutch externally fitted to the central shaft in the casing; A spring that is housed in the casing, has a radially inner end fixed to the outer ring of the one-way clutch, and is wound when rotated relative to the central axis in the torque transmission direction of the one-way clutch.
- a self-propelled caster characterized by comprising:
- the casing has a peripheral wall provided with a plurality of recesses in a radially inner portion facing the outer peripheral surface of the mainspring,
- the radially outer end of the mainspring includes a convex portion that protrudes radially outward and fits into the concave portion, When the mainspring is tightened, the convex portion is fitted into the concave portion until a predetermined amount of tightening, and is released from the concave portion when the casing rotates beyond the predetermined amount of tightening.
- the convex portion extends in a substantially radial direction of the mainspring and forms a contact surface that contacts the concave portion.
- the concave portion has a size such that the convex portion is released from the concave portion after the mainspring is wound up to the maximum number of rotations of the mainspring.
- the convex portion has a shape that is released from the concave portion after the mainspring is wound up to the maximum number of rotations of the mainspring.
- a mounting seat for mounting on the mounted portion A fork extending from the mounting seat toward the central axis and fixing the mounting seat and the central shaft;
- the second casing and a drive part of which is housed in the second casing is attached to the second casing so as to be relatively rotatable, and extends to the outside of the second casing.
- a shock absorber comprising: a rotary shaft having a portion; and a second spring housed in the second casing and biasing the rotary shaft;
- a self-propelled caster having a connecting shaft having one end portion fixed to the central axis substantially perpendicular to the longitudinal direction and the other end fixed to the rotation shaft substantially perpendicular to the longitudinal direction.
- a T-groove is formed on the outside of the second casing.
- the casing includes an opening that allows the inside of the casing to be observed.
- the second casing includes an opening that allows observation of the inside of the second casing.
- FIG. 1 is a side view showing a mainspring type driving apparatus according to the first embodiment of the present application.
- FIG. 2 is a front view showing the mainspring driving device according to the first embodiment of the present application.
- FIG. 3 is a front view showing a state in which the front portion of the casing of the mainspring driving device according to the first embodiment of the present application is removed.
- 4 is a cross-sectional view taken along the line IV-IV shown in FIG. 2 of the mainspring driving device according to the first embodiment of the present application.
- FIG. 5 is a side view of the mainspring driving device according to the second embodiment of the present application.
- FIG. 6 is a front view of the mainspring driving device according to the third embodiment of the present application.
- FIG. 1 is a side view showing a mainspring type driving apparatus according to the first embodiment of the present application.
- FIG. 2 is a front view showing the mainspring driving device according to the first embodiment of the present application.
- FIG. 3 is a front view showing a state in which
- FIG. 7 is a side view of the mainspring driving device according to the third embodiment of the present application.
- FIG. 8 is a cross-sectional view taken along the line VIII-VIII shown in FIG. 6 of the mainspring driving device according to the third embodiment of the present application.
- FIG. 9 is a front view of the mainspring driving device according to the fourth embodiment of the present application.
- FIG. 10 is a side view of the mainspring driving device according to the fourth embodiment of the present application.
- FIG. 11 is a side view of a self-propelled caster according to a fifth embodiment of the present application.
- FIG. 12 is a plan view of a self-propelled caster according to a fifth embodiment of the present application.
- FIG. 13 is a cross-sectional view of the self-propelled caster XIII-XIII shown in FIG. 11 according to the fifth embodiment of the present application.
- FIG. 14 is a sectional view of a self-propelled caster according to a sixth embodiment of the present application.
- FIG. 15 is a front view of the mainspring driving device according to the seventh embodiment of the present application.
- FIG. 16 is a side view of the mainspring driving device according to the seventh embodiment of the present application.
- FIG. 17 is a rear view of the mainspring driving device according to the seventh embodiment of the present application.
- FIG. 18 is a front view showing a state in which the front-side cover of the mainspring driving device according to the seventh embodiment of the present application is removed.
- FIG. 19 is a side view of another usage mode of the mainspring driving device according to the seventh embodiment of the present application.
- 20 is a cross-sectional view of the mainspring driving device according to the seventh embodiment of the present application taken along the line XX-XX shown in FIG.
- FIG. 21 is a side view of the mainspring driving device according to the eighth embodiment of the present application.
- FIG. 22 is a cross-sectional view of the mainspring driving device according to the eighth embodiment of the present application.
- FIG. 23 is a side view of another usage mode of the mainspring driving device according to the eighth embodiment of the present application.
- FIG. 1 is a side view showing a mainspring driving device 100 according to the first embodiment of the present application.
- the mainspring type driving device 100 has a rectangular parallelepiped casing 102 containing the mainsprings 105 and 107 shown in FIG. 4, and an output shaft that passes through substantially the center of the casing 102 and is attached to the casing 102 so as to be relatively rotatable. 103.
- FIG. 2 is a front view showing the mainspring driving device 100 according to the first embodiment of the present application.
- the output shaft 103 receives external force and rotates to wind the springs 105 and 107 accommodated in the casing 102, and outputs torque as a driving force by elastic recovery of the springs 105 and 107.
- the output shaft 103 has a drive unit 103 a that protrudes to the front side of the casing 102.
- a key groove is formed along the axial direction from the axial end portion of the drive unit 103a, and the key 104 is fitted in the key groove.
- the key 104 transmits torque to a driven member driven by the output shaft 103.
- FIG. 3 is a front view showing a state in which a front portion of the casing 102 of the mainspring driving device 100 according to the first embodiment of the present application is removed.
- a first spring 105 is accommodated inside the casing 102 and around the output shaft 103.
- the casing 102 has a peripheral wall 106 configured to surround the first mainspring 105 on the outer side in the radial direction of the first mainspring 105.
- the end of the first spring 105 on the outer side in the radial direction is bent outward in the radial direction, forming a convex portion 105a protruding outward in the radial direction, and is folded inward.
- On the radially inner side of the peripheral wall 106 eight concave portions 106a that are recessed radially outward are formed at equal intervals in the circumferential direction.
- a radially outer portion of the convex portion 105a is fitted and engaged in the concave portion 106a.
- the convex portion 105a may be formed by deforming the end portion of the first spring 105 as described above, but a member formed separately from the first spring 105 may be attached.
- FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. 2 of the mainspring driving device 100 according to the first embodiment of the present application.
- first spring 105 disposed on the front side and a second spring 107 disposed on the back side of the first spring 105, that is, on the left side in FIG. .
- the second spring 107 is arranged in the same direction as the first spring 105. Similar to the first spring 105, the second spring 107 has a convex portion (not shown) formed at the radially outer end, and the convex portion is fitted into a concave portion 106a formed on the peripheral wall 106. Match.
- the radially inner ends of the first spring 105 and the second spring 107 are fixed to a cylindrical bush 110 that passes through the output shaft 103 inside.
- a thin plate-like spacer may be provided between the first spring 105 and the second spring 107. Further, a connecting pin that connects the convex portions 105a of the first mainspring 105 and the convex portions (not shown) of the second mainspring 107 through the inner side may be provided.
- a first needle bearing 111, a one-way clutch 112, and a second needle bearing 113 are interposed between the bush 110 and the output shaft 103.
- the first needle bearing 111, the one-way clutch 112, and the second needle bearing 113 are arranged in this order from the front side in the axial direction of the output shaft 103.
- the one-way clutch 112 has an outer ring fitted into the bush 110.
- the one-way clutch 112 transmits torque to the bush 110 when rotating the output shaft 103 in the direction in which the first and second springs 105 and 107 are tightened, and rotates the output shaft 103 in the opposite direction. Is arranged in the direction of idling without transmitting torque to the bush 110.
- the rotation direction of the output shaft 103 in which the one-way clutch 112 transmits torque to the bush 110 is referred to as a torque transmission direction.
- the output shaft 103 is attached to the casing 102 so as to be relatively rotatable by a first rolling bearing 108 and a second rolling bearing 109 in which an outer ring is fixed to the casing 102.
- the mainspring driving device 100 elastically deforms the first and second springs 105 and 107 by the rotation of the output shaft 103, and the first and second springs 105 and 107. Energy can be temporarily stored, and the energy can be output as torque of the output shaft 103.
- the one-way clutch 112 is interposed between the bush 110 fixed to the inner ends of the first and second springs 105 and 107 and the output shaft 103. is doing. Therefore, even when the output shaft 103 is rotated in the direction opposite to the direction in which the first and second springs 105 and 107 are tightened, the first and second springs 105 and 107 can be prevented from being damaged. For example, when a wheel such as a work carriage is used as a driven member, the work carriage can travel by inertia even after all of the energy stored in the first and second springs 105 and 107 is output. .
- first and second springs 105, 107 are configured by the configuration of the convex portions 105a, 107a formed on the outer ends of the first and second springs 105, 107 and the concave portion 106a formed on the peripheral wall 106. Even when the winding is excessively tightened, the first and second springs 105 and 107 can be prevented from being damaged by the protrusions 105a and 107a being detached from the recess 106a.
- a gap is formed between the springs 105 and 107.
- the convex part 105a is released from the engagement with the concave part 106a, and the first and second springs 105 and 107 are released from being fixed in the rotational direction. Thereafter, the convex portion 105a is moved in the circumferential direction by the urging of the springs 105 and 107, and is fitted into and engaged with the concave portion 106a located adjacent to the circumferential direction in the circumferential direction, and the first and second springs 105, 107 is prevented from rotating. Thereafter, when the output shaft 103 continues to rotate in the winding direction, the same movement is repeated.
- the protrusion 105a is recessed before the first and second springs 105 and 107 are damaged. It is preferably configured to be released from engagement with 106a.
- a configuration can be obtained by adjusting the size of the concave portion 106a and the angle of the contact surface of the convex portion 105a that contacts the concave portion 106a.
- the concave portion 106a can be enlarged in order to make it difficult for the convex portion 105a to be released from engagement with the concave portion 106a.
- the contact surface of the convex part 105a which contacts the recessed part 106a can be formed so that it may extend in the substantially radial direction of the 1st, 2nd spring 105,107.
- the first and second springs 105 and 107 are wound up to the maximum number of rotations so that the convex portion 105a is released from the engagement with the concave portion 106a.
- a high output spring type driving device 100 can be realized.
- the compact spring-type drive device 100 can be realized.
- the size of the casing 102 may be reduced by using a single spring.
- the mainspring driving device according to the second embodiment of the present application is the same as that of the first embodiment except for the shape of the output shaft. Therefore, portions corresponding to the mainspring drive device 100 according to the first embodiment are indicated by reference numerals obtained by adding “100” to the reference numerals used in the description of the first embodiment, and redundant description is omitted. To do. For example, “203” is assigned to the portion corresponding to the output shaft 103 of the first embodiment.
- FIG. 5 is a side view of the mainspring driving device 200 according to the second embodiment of the present application.
- the mainspring driving device 200 according to the second embodiment is the same as that of the first embodiment in that the output shaft 203 extends outward from the both sides of the casing 202 with substantially the same dimensions. This is different from the mainspring driving device 100 according to the above. Thereby, in this 2nd Embodiment, a driving force can be output from the both sides of the casing 202.
- a stable drive wheel such as a work cart can be realized.
- the both ends of the output shaft 203 are driving units 203a and 203b for driving the driven member.
- the drive units 203a and 203b have a so-called D-cut in which a part of the side surfaces is a flat surface.
- a compact spring-type drive device 200 can be realized.
- the mainspring driving device according to the third embodiment is the same as the mainspring driving device according to the first embodiment in some configurations. Accordingly, the parts corresponding to the mainspring driving device according to the first embodiment are indicated by the reference numerals obtained by adding “200” to the reference numerals used in the description of the first embodiment, and the redundant description is omitted. . For example, “303” is attached to the portion corresponding to the output shaft 103 of the first embodiment.
- FIG. 6 is a front view of the mainspring driving device 300 according to the third embodiment of the present application.
- FIG. 7 is a side view of the mainspring driving device 300 according to the third embodiment of the present application. The left side of FIG. 7 is the front side of the mainspring driving device 300.
- the spring-type driving device 300 according to the third embodiment passes through the rotation shaft 303 at substantially the center as in the spring-type driving device 100 according to the first embodiment, and springs 305 and 307 to be described later with reference to FIG. Has a casing 302 that accommodates.
- a gear case 314 containing a plurality of gears is attached to the back side of the casing 302 as a torque transmission mechanism.
- An output shaft 315 is passed through the lower portion of the gear case 314. Torque generated by the springs 305 and 307 accommodated in the casing 302 is transmitted to the output shaft 315 via a torque transmission mechanism accommodated in the gear case 314.
- the output shaft 315 is a cylindrical hollow shaft, and a rod-like driven member is fitted in such a manner that relative rotation is impossible, and torque is transmitted.
- a support portion 316 that rotatably supports the output shaft 315 is attached to the lower side of the casing 302, and the output shaft 315 passes through the gear case 314 and the support portion 316.
- a flange member 317 is attached to the front side of the support portion 316.
- the flange member 317 has a cylindrical shape and rises from the support portion 316 to form a flange 317c extending radially outward.
- the flange member 317 has a common center axis with the output shaft 315, and the front side end of the output shaft 315 is located on the radially inner side of the flange member 317.
- FIG. 8 is a cross-sectional view taken along the line VIII-VIII shown in FIG. 6 of the mainspring driving device 300 according to the third embodiment of the present application.
- the periphery of the casing 302 has the same configuration as that of the mainspring driving device 100 according to the first embodiment. Specifically, it is as follows.
- a solid rotating shaft 303 penetrating the casing 302 is attached to the casing 302 by first and second rolling bearings 308 and 309 so as to be relatively rotatable.
- the radially inner ends of the springs 305 and 307 that are accommodated in the casing 302 and surrounded by the peripheral wall 306 are fixed to a cylindrical bush 310 that passes through the rotation shaft 303 to the inside. Needle bearings 311 and 313 and a one-way clutch 312 are interposed between the bush 310 and the rotary shaft 303.
- the solid rotating shaft 303 can be smaller in outer diameter than the hollow output shaft 315. Therefore, with the above-described configuration, it is possible to make a larger accommodation space for the mainsprings 305 and 307 in the casing 302 than when the output shaft 315 is arranged at the center of the mainsprings 305 and 307, and the casing 302 can be reduced in size.
- the first spur gear 319 accommodated in the gear case 314 is fitted on the back side of the mainspring-type driving device 300, that is, the end of the right rotation shaft 303 as viewed in FIG.
- the first spur gear 319 is also housed in the gear case 314 and meshes with a second spur gear 320 that is externally fitted to the portion of the output shaft 315 on the back side of the mainspring drive device 300.
- the rotation speed and torque of the output shaft 315 can be easily set by changing the gear ratio of the first and second spur gears 319 and 320.
- the output shaft 315 is attached to the support portion 316 so as to be relatively rotatable by a third rolling bearing 321 and a fourth rolling bearing 322 in which an outer ring is fixed to a hole 316a formed in the support portion 316.
- the flange member 317 includes a cylindrical portion 317a, a reduced diameter portion 317b formed on the support portion 316 side of the cylindrical portion 317a, and a cylindrical portion 317a opposite to the support portion 316. And an annular flange 317c extending radially outward from the portion.
- the reduced diameter portion 317b is fixed to the hole 316a of the support portion 316.
- four through holes 317 d that penetrate in the axial direction of the output shaft 315 are formed in the flange 317 c at substantially equal intervals.
- the mainspring driving device 300 according to the third embodiment can be easily attached to a mounted portion such as a work carriage through the through-hole 317d of the flange 317c, and a driven shaft such as an axle of the work carriage is provided. Can be fitted into the output shaft 315 to drive a work cart or the like.
- the output shaft 315 in parallel with the rotating shaft 303 disposed inside the first and second springs 305 and 307, that is, substantially in parallel, the axial direction of the output shaft of the mainspring drive device 300 is increased. The size is reduced, and the space for mounting the mainspring driving device 300 can be saved.
- the torque arm can be directly attached to the support portion 316 using the attachment tap of the flange member 317.
- the mainspring-type driving device 300 that is compact, saves installation space, and can be easily attached to the attached portion.
- the mainspring driving device according to the fourth embodiment is obtained by omitting the flange member 317 from the mainspring driving device 300 according to the third embodiment. Therefore, parts common to the mainspring-type driving device 300 according to the third embodiment are given reference numerals obtained by adding “100” to the reference numerals used in the description of the third embodiment. Omitted. For example, “403” is assigned to the portion corresponding to the rotation shaft 303 of the third embodiment.
- FIG. 9 is a front view of the mainspring driving device 400 according to the fourth embodiment of the present application.
- FIG. 10 is a side view of the mainspring driving device 400 according to the fourth embodiment of the present application.
- the mainspring-type driving device 400 includes a casing 402 in which a mainspring for energizing the rotary shaft 403 is accommodated, a support portion 416 attached to the casing 402 and rotatably supporting the output shaft 415. And a gear case 414 in which a plurality of gears that transmit torque of the rotating shaft 403 to the output shaft 415 are accommodated.
- the spring-type driving device 400 stores the energy by elastically deforming the spring by rotating the output shaft 415 in the direction in which the spring housed in the casing 402 is tightened, and stores the energy from the output shaft 415.
- the driven shaft such as a work carriage can be driven.
- the mainspring type driving device 400 that is more compact than the third embodiment and further reduces the installation space.
- the self-propelled caster according to the fifth embodiment is the same as the mainspring drive devices 100 and 200 according to the first and second embodiments in some configurations. Therefore, portions corresponding to the mainspring drive devices 100 and 200 according to the first and second embodiments are denoted by reference numerals obtained by changing the hundreds of the reference numerals to “5”, and redundant description is omitted. . For example, “503” is given to the portions corresponding to the output shaft 103 of the first embodiment and the output shaft 203 of the second embodiment.
- FIG. 11 is a side view of a self-propelled caster 500 according to the fifth embodiment of the present application.
- the self-propelled caster 500 includes a plate-shaped mounting seat 530 attached to a mounted portion such as a work cart, forks 531a and 531b extending downward from the mounting seat 530, and circles in which the forks 531a and 531b are fixed to respective lower portions.
- the casing 502 in which the mainspring 507 is accommodated is provided, and the tire 533 is attached to the radially outer side surface of the peripheral wall 506 of the casing 502.
- the back side of the self-propelled caster 500 shown in FIG. 11 has the same configuration as the front side.
- FIG. 12 is a plan view of a self-propelled caster 500 according to the fifth embodiment of the present application.
- the mounting seat 530 has a long rectangular shape in the traveling direction, and three through holes 530a penetrating vertically are formed in the vicinity of the front and rear ends. As shown in FIG. 11, the attachment seat 530 is attached to the attachment portion through the screw 530b through the through hole 530a.
- the forks 531a and 531b extend downward from the long side portion of the mounting seat 530.
- FIG. 13 is a cross-sectional view of the self-propelled caster 500 according to the fifth embodiment of the present application taken along the line XIII-XIII shown in FIG.
- the output torque can also be increased by adopting a configuration in which the second spring is accommodated in the portion of the casing 502 in which the spacer 534 is accommodated as in the first embodiment.
- the radially inner end of the mainspring 507 is fixed to a bush 510 through which the central shaft 503 passes. Between the bush 510 and the central shaft 503, a first needle bearing 511, a one-way clutch 512, and a second needle bearing 513 are arranged side by side in the axial direction of the central shaft 503. As described in the first embodiment, the end portion on the radially outer side of the mainspring 507 forms a convex portion, and a part of the convex portion is formed in a concave portion formed on the radially inner side of the peripheral wall 506. It has entered.
- the casing 502 is attached by a first rolling bearing 508 and a second rolling bearing 509 so as to be relatively rotatable with respect to the central shaft 503.
- the one-way clutch 512 fixes the bush 510 so that the bush 510 does not rotate with respect to the central shaft 503 when the casing 502 rotates in the direction to tighten the spring 507, and the casing 502 rotates in the opposite direction.
- the bush 510 is arranged in the direction of idling so as to rotate with respect to the central shaft 503.
- the self-propelled caster 500 according to the fifth embodiment can be easily attached to a work carriage or the like by the attachment seat 530. Further, by moving the working carriage attached with the self-propelled caster 500 as a caster in the winding direction of the mainspring 507, the mainspring 507 is elastically deformed, and energy is stored in the mainspring 507. Thereafter, when the work carriage is brought into a free state, the mainspring 507 is elastically restored, and the casing 502, the mainspring 507, and the tire 533 are rotated about the central axis 503, and the work carriage is caused to travel.
- Such a work cart is pulled in the production line, for example, in an automobile production line to carry parts and tools to a predetermined position, and then separated from the production line and travels in the direction opposite to the movement of the production line. It can be used to return to the original position. According to this, it is not necessary to supply power such as electricity from the outside for the movement of the work carriage. Moreover, it can also be used as an assist device for a hand cart, and the burden on the operator can be reduced.
- the construction of the convex portion formed on the radially outer end of the mainspring 507 and the concave portion formed on the peripheral wall 506 temporarily causes the work carriage to move beyond the winding limit of the mainspring 507 in the winding direction of the mainspring 507. Even if it is made, the mainspring 507 can be prevented from being damaged. In addition, the work carriage can travel due to inertia even after the mainspring 507 has been elastically restored and the mainspring 507 has been completely elastically restored.
- a compact self-propelled caster can be realized.
- a self-propelled caster 800 according to a sixth embodiment of the present application will be described.
- the self-propelled caster 800 according to the sixth embodiment is the same as the mainspring drive device 100 according to the first embodiment and the self-propelled caster 500 according to the fifth embodiment in a part of the configuration. Therefore, for the parts corresponding to the first embodiment, the hundreds of the reference signs are changed to “6”, and for the parts corresponding to the fifth embodiment, the hundreds of the reference signs are “7”.
- the description will be omitted, and duplicate description will be omitted. For example, “603” is assigned to the portion corresponding to the rotation shaft 103 of the first embodiment, and “703” is assigned to the portion corresponding to the central axis 503 of the fifth embodiment.
- FIG. 14 is a sectional view of a self-propelled caster 800 according to the sixth embodiment of the present application.
- the mainspring driving device 600 is shown as a plane.
- a self-propelled caster 800 includes a spring-type drive device 600 having the same configuration as that of the first embodiment, and mounting members such as a mounting seat 530 and forks 531a and 531b from the fifth embodiment. And a self-propelled wheel 700 having a configuration in which the central shaft 703 extends to one side, and a connecting shaft 640 that couples the mainspring-type drive device 600 and the self-propelled wheel 700.
- the mainspring driving device 600 functions as a shock absorber.
- the connecting shaft 640 has a rotating shaft 603 of the mainspring drive device 600 fixed to a direction substantially perpendicular to the longitudinal direction at one end, and the other end of the self-propelled wheel 700 in a direction substantially perpendicular to the longitudinal direction.
- a central shaft 703 is fixed.
- the self-propelled caster 800 is attached to a mounted portion such as a work cart so that the mainspring drive device 600 urges the self-propelled wheel 700 to the floor side via the connecting shaft 640.
- the work carriage can be caused to travel in the same manner as in the fifth embodiment while absorbing the impact that the self-propelled wheels 700 receive from the floor as the shock absorber 600 as a shock absorber.
- the self-propelled caster 800 according to the present embodiment is particularly useful when used for an existing work cart. If the self-propelled caster 500 according to the fifth embodiment is attached without removing the casters of the existing work cart, the self-propelled caster 500 may float in the air due to the unevenness of the floor, and may rotate idle when the mainspring 507 is energized. There is. On the other hand, if the self-propelled caster 800 according to the sixth embodiment is used, the self-propelled wheel 700 can be made to follow the unevenness of the floor and can always be in contact with the floor by applying pressure to the floor. It is possible to prevent the free-running wheel 700 from idling due to the unevenness.
- the self-propelled caster 800 can drive the mobile work table by fixing the mainspring drive device 600 to the floor or the like and placing the self-propelled wheels 700 against the lower surface of the mobile work table. it can. Even in this case, even if the mobile work table moves up and down, the self-propelled wheel 700 can follow and always contact the mobile work table, and the self-propelled wheel 700 can be prevented from idling.
- the mainspring driving device according to the seventh embodiment is the same as the first embodiment except for a part. Accordingly, portions corresponding to the mainspring driving device 100 according to the first embodiment are indicated by reference numerals obtained by adding “800” to the reference numerals used in the description of the first embodiment, and redundant descriptions are omitted. To do. For example, “903” is given to the portion corresponding to the output shaft 103 of the first embodiment.
- FIG. 15 is a front view of the mainspring driving device 900 according to the seventh embodiment.
- FIG. 16 is a side view of the mainspring driving device 900 according to the seventh embodiment.
- FIG. 17 is a back view of the mainspring driving device 900 according to the seventh embodiment.
- FIG. 18 is a front view showing a state in which the front cover 902a of the mainspring driving device 900 according to the seventh embodiment is removed.
- the mainspring driving device 900 of the seventh embodiment does not include the output shaft 903 as its constituent elements.
- the output shaft 903 can be easily replaced without disassembling the mainspring-type driving device 900 by the user selecting the type and mounting direction according to the application.
- the output shaft 903 can be fixed and released in the axial direction by attaching and detaching set collars 929a and 929b that are externally fitted to the output shaft 903 on the front side and the back side of the mainspring driving device 900, respectively.
- the output shaft 903 rotates counterclockwise during output when the mainspring driving device 900 is viewed from the front side.
- the output shaft 903 is inserted into the through-hole 939 from the back side as described above and the drive unit 903a protrudes from the back side, the output shaft is viewed when the mainspring-type drive device 900 is viewed from the back side. 903 will rotate clockwise during output.
- FIG. 19 is a side view of another usage mode of the mainspring driving device 900 according to the seventh embodiment of the present application.
- the drive units 903a and 903b of the output shaft 903 become the front side of the mainspring drive device 900 as shown in FIG.
- it can also be set as the structure which protrudes from the both sides of a back side, and outputs on both sides.
- a configuration that facilitates replacement of the output shaft 903 as described above will be described later with reference to FIG.
- openings 926a to 926d, 927a to 927a are formed in the front lid 902a and the back lid 902b that constitute a part of the casing 902. 927d is formed, and the mainspring 905 accommodated therein can be observed from the outside without removing the lids 902a and 902b.
- the state of the mainspring 905 can be easily confirmed, and the maintenance burden during the usage period can be reduced.
- the mainspring-type driving device 900 is substantially in the axial direction of the output shaft 903 outside the peripheral wall 906 that constitutes a part of the casing 902.
- Eight T grooves 925a to 925h are formed extending in parallel and penetrating the peripheral wall 906.
- the peripheral wall 906 has a substantially rectangular outer shape when viewed from the front or the back, and two T grooves 925a to 925h are formed at four corners.
- each of the T grooves 925a to 925h is formed in the vicinity of both end portions of one side of the peripheral wall 906 having a substantially rectangular outer shape.
- the user can attach the mainspring-type drive device 900 to a machine or the like in a relatively free manner by using a T-groove nut and a bolt.
- the user can select the number and type of fixtures such as T-groove nuts and bolts, and the positions of the fixtures.
- the peripheral wall 906 can be easily mass-produced by extrusion molding.
- FIG. 20 is a cross-sectional view taken along the line XX-XX shown in FIG. 15 of the mainspring driving device 900 according to the seventh embodiment.
- a first rolling bearing 908 and a second rolling bearing 909 are fitted in the center portions of the lids 902a and 902b, respectively.
- a sleeve 936a is fitted in the first rolling bearing 908, and a sleeve 936b is fitted in the second rolling bearing 909.
- the sleeves 936 a and 936 b, the first needle bearing 911, the one-way clutch 912, and the second needle bearing 913 define a through hole 939 that penetrates from the front side to the back side of the mainspring drive device 900.
- the output shaft 903 is partially inserted into the through hole 939.
- a bush 910 is externally fitted to the first needle bearing 911, the one-way clutch 912, and the second needle bearing 913.
- An end portion on the center side of the mainspring 905 is fixed to the bush 910.
- the sleeves 936a and 936b have flanges that extend radially outward between the first and second rolling bearings 908 and 909 and the bushing 910 on opposite sides.
- the lids 902a and 902b are formed with annular portions 928a and 928b that surround the end portion of the bush 910 from the outside in the radial direction.
- the annular portions 928a and 928b serve as position defining portions for the bush 910.
- the circular portions 928a and 928b limit the radial movement of the bush 910.
- the annular portions 928a and 928b only need to limit the radial movement of the bushing 910, and may be a position defining portion having a shape other than the annular shape.
- the annular portions 928a and 928b can be replaced with C-shaped position defining portions.
- the position defining portions such as the annular portions 928a and 928b may be formed separately from the lids 902a and 902b.
- the through-hole 939 penetrating from the front side to the back side of the mainspring driving device 900 can be maintained even when the output shaft 903 is not present.
- the bush 910 is supported only by the spring 905 when the output shaft 903 is extracted from the spring drive device 900.
- the bush 910 is displaced by the elastic deformation of the mainspring 905, and it becomes difficult to insert the output shaft 903.
- the position of the bush 910 is maintained even when the output shaft 903 is removed from the mainspring driving device 900, so that the output shaft 903 can be easily inserted into the through hole 939.
- annular transparent plates 935a and 935b are respectively arranged.
- the transparent plates 935a and 935b are capable of observing the inside of the mainspring-type driving device 900 through the openings 926a to 926d and 927a to 927d of the lids 902a and 902b, while allowing the fingers and foreign objects to enter the mainspring-type driving device 900. prevent.
- the transparent plates 935a and 935b can be formed from plastic, glass, or the like.
- the mainspring driving device according to the eighth embodiment is the same as the seventh embodiment except for a part. Accordingly, portions corresponding to the mainspring drive device 900 according to the seventh embodiment are indicated by reference numerals obtained by adding “100” to the reference numerals used in the description of the seventh embodiment, and redundant descriptions are omitted. To do. For example, “1003” is attached to the portion corresponding to the output shaft 903 of the seventh embodiment.
- FIG. 21 is a side view of the mainspring driving device 1000 according to the eighth embodiment.
- FIG. 22 is a cross-sectional view of the mainspring driving apparatus 1000 according to the eighth embodiment.
- FIG. 22 corresponds to FIG. 20 of the seventh embodiment.
- each of the springs 1005 and 1007 has a radially inner end fixed to the bush 1010.
- the bush 1010 is external to the first needle bearing 1011a, the first one-way clutch 1012a, the second needle bearing 1013a, the third needle bearing 1011b, the second one-way clutch 1012b, and the fourth needle bearing 1013b. It is fitted.
- FIG. 23 is a side view of another usage mode of the mainspring driving device 1000 according to the eighth embodiment of the present application.
- the output shaft 1003 can be easily replaced in the same manner as in the seventh embodiment. Therefore, as shown in FIG. 23, the user can easily change to the configuration of both shafts, and can easily change the output direction.
- the configuration for facilitating replacement of the output shaft 903 in the seventh and eighth embodiments can be applied to the first to sixth embodiments.
- the configuration of the casing 902 and the transparent plates 935a and 935b in the seventh and eighth embodiments can be applied to the first to sixth embodiments.
Abstract
Description
ケーシングと、
一部が前記ケーシング内に収容され、前記ケーシングに相対回転可能に取り付けられ、前記ケーシングの外側に延びた駆動部を備えた出力軸と、
前記ケーシング内で前記出力軸に外嵌した一方向クラッチと、
前記ケーシング内に収容され、前記一方向クラッチの外輪に対して径方向内側の端部が固定され、前記出力軸が前記一方向クラッチのトルク伝達方向に回転した際に巻き締められるゼンマイと、を有することを特徴とするゼンマイ式駆動装置を提供する。
出力軸が挿入される一方向クラッチと、
前記一方向クラッチに外嵌した筒状のブッシュと、
径方向内側の端部が前記ブッシュに固定され、前記出力軸が前記一方向クラッチのトルク伝達方向に回転した際に巻き締められるゼンマイと、
前記一方向クラッチ、前記ブッシュ及び前記ゼンマイを収容し、前記ブッシュの軸方向の端部を径方向外側から囲う位置規定部を備えたケーシングと、を有することを特徴とするゼンマイ式駆動装置を提供する。
前記ゼンマイの径方向外側の端部は、径方向外側に突出し前記凹部に嵌り込む凸部を備え、
前記凸部は、前記ゼンマイの巻き締め時に、所定の巻き締め量までは前記凹部に嵌り込み、前記所定の巻き締め量を超えて前記出力軸が回転すると前記凹部から解放される。
ケーシングと、
一部が前記ケーシング内に収容され、前記ケーシングに相対回転可能に取り付けられた回転軸と、
前記ケーシング内で前記回転軸に外嵌した一方向クラッチと、
前記ケーシング内に収容され、前記一方向クラッチの外輪に対して径方向内側の端部が固定され、前記回転軸が前記一方向クラッチのトルク伝達方向に回転した際に巻き締められるゼンマイと、
前記ケーシングに固定された支持部と、
前記回転軸と略平行な方向で前記支持部に相対回転可能に取り付けられ、被駆動部材を駆動させる出力軸と、
前記回転軸のトルクを前記出力軸へ伝達するトルク伝達機構と、を有することを特徴とするゼンマイ式駆動装置を提供する。
前記ゼンマイの径方向外側の端部は、径方向外側に突出し前記凹部に嵌り込む凸部を備え、
前記凸部は、前記ゼンマイの巻き締め時に、所定の巻き締め量までは前記凹部に嵌り込み、前記所定の巻き締め量を超えて前記回転軸が回転すると前記凹部から解放される。
円柱面状の外周面を有するケーシングと、
前記ケーシングの径方向外側に固定されたタイヤと、
一部が前記ケーシング内に収容され、前記ケーシングに相対回転可能に取り付けられ、一部が前記ケーシングの外側に延びた中心軸と、
前記ケーシング内で前記中心軸に外嵌した一方向クラッチと、
前記ケーシング内に収容され、前記一方向クラッチの外輪に対して径方向内側の端部が固定され、前記中心軸に対して前記一方向クラッチのトルク伝達方向に相対回転した際に巻き締められるゼンマイと、を有することを特徴とする自走キャスターを提供する。
前記ゼンマイの径方向外側の端部は、径方向外側に突出し前記凹部に嵌り込む凸部を備え、
前記凸部は、前記ゼンマイの巻き締め時に、所定の巻き締め量までは前記凹部に嵌り込み、前記所定の巻き締め量を超えて前記ケーシングが回転すると前記凹部から解放される。
前記取付座から前記中心軸側へ延び、前記取付座と前記中心軸とを固定するフォークと、を有する。
一方の端部に長手方向と略垂直に前記中心軸を固定し、もう一方の端部に長手方向と略垂直に前記回転軸を固定した連結シャフトと、を有する自走キャスターを提供する。
図1は、本願の第1実施形態に係るゼンマイ式駆動装置100を示す側面図である。
次に、本願の第2実施形態について説明する。本願の第2実施形態に係るゼンマイ式駆動装置は、出力軸の形状を除いて、上記第1実施形態と同様である。したがって、第1実施形態に係るゼンマイ式駆動装置100と対応する部分については、第1実施形態の説明に用いた参照符号に「100」を足した数の参照符号により示し、重複する説明は省略する。例えば、第1実施形態の出力軸103に対応する部分には「203」を付す。
次に、本願の第3実施形態に係るゼンマイ式駆動装置について説明する。本第3実施形態に係るゼンマイ式駆動装置は、一部の構成において上記第1実施形態に係るゼンマイ式駆動装置と同様である。したがって、第1実施形態に係るゼンマイ式駆動装置と対応する部分については、第1実施形態の説明に用いた参照符号に「200」を足した数の参照符号により示し、重複する説明は省略する。例えば、第1実施形態の出力軸103に対応する部分には「303」を付す。
次に、本願の第4実施形態に係るゼンマイ式駆動装置について説明する。本第4実施形態に係るゼンマイ式駆動装置は、上記第3実施形態に係るゼンマイ式駆動装置300からフランジ部材317を省いたものである。したがって、第3実施形態に係るゼンマイ式駆動装置300と共通する部分については、第3実施形態の説明に用いた参照符号に「100」を足した数の参照符号を付し、重複する説明は省略する。例えば、第3実施形態の回転軸303に対応する部分には「403」を付す。
次に、本願の第5実施形態に係る自走キャスターについて説明する。本第5実施形態に係る自走キャスターは、一部の構成において上記第1、第2実施形態に係るゼンマイ式駆動装置100、200と同様である。したがって、第1、第2実施形態に係るゼンマイ式駆動装置100、200と対応する部分については、参照符号の百の位を「5」に変更した参照符号を付し、重複する説明は省略する。例えば、第1実施形態の出力軸103、第2実施形態の出力軸203に対応する部分には「503」を付す。
次に、本願の第6実施形態に係る自走キャスター800について説明する。本第6実施形態に係る自走キャスター800は、一部の構成において、上記第1実施形態に係るゼンマイ式駆動装置100、及び、上記第5実施形態に係る自走キャスター500と同様である。したがって、第1実施形態と対応する部分については、参照符号の百の位を「6」に変更して示し、第5実施形態と対応する部分については、参照符号の百の位を「7」に変更して示し、重複する説明は省略する。例えば、第1実施形態の回転軸103に対応する部分には「603」を付し、第5実施形態の中心軸503に対応する部分には「703」を付す。
次に、本願の第7実施形態について説明する。本第7実施形態に係るゼンマイ式駆動装置は、一部を除いて上記第1実施形態と同様である。したがって、第1実施形態に係るゼンマイ式駆動装置100と対応する部分については、第1実施形態の説明に用いた参照符号に「800」を足した数の参照符号により示し、重複する説明は省略する。例えば、第1実施形態の出力軸103に対応する部分には「903」を付す。
次に、本願の第8実施形態について説明する。本第8実施形態に係るゼンマイ式駆動装置は、一部を除いて上記第7実施形態と同様である。したがって、第7実施形態に係るゼンマイ式駆動装置900と対応する部分については、第7実施形態の説明に用いた参照符号に「100」を足した数の参照符号により示し、重複する説明は省略する。例えば、第7実施形態の出力軸903に対応する部分には「1003」を付す。
500、800 自走キャスター
700 自走車輪
102、202、302、402、502、602、702、902、1002 ケーシング
902a、902b、1002a、1002b 蓋
103、203、315、415、903、1003 出力軸
503、703 中心軸
103a、203a、203b、903a、1003a 駆動部
303、403 回転軸
104、504、904、904a、904b、1004、1004a、1004b キー
105、305、905、1005 第1のゼンマイ
105a、107a 凸部
106、306、506、706、906、1006 周壁
106a 凹部
107、307、907、1007 第2のゼンマイ
507、707 ゼンマイ
108、308、508、708、908、1008 第1の転がり軸受
109、309、509、709、909、1009 第2の転がり軸受
110、310、510、710、910、1010 ブッシュ
111、311、511、911、1011a 第1のニードル軸受
112、312、512、912、1012a 一方向クラッチ
113、313、513、913、1013a 第2のニードル軸受
1011b 第3のニードル軸受
1012b 第2の一方向クラッチ
1013b 第4のニードル軸受
314、414 ギヤケース
316、416 支持部
316a 孔部
317 フランジ部材
317a 筒状部
317b 縮径部
317c フランジ
317d 貫通孔
319 第1の平歯車
320 第2の平歯車
321 第3の転がり軸受
322 第4の転がり軸受
925a~925h、1025c、1025d T溝
926a~926d、927a~927d、1026a、1026c、1027a、1027c 開口部
928a、928b、1028a、1028b 円環部
929a、929b、1029a、1029b セットカラー
530 取付座
530a 貫通孔
530b ネジ
531a、531b フォーク
532a、532b 円環部材
533 タイヤ
534 スペーサー
534a フランジ
935a、935b、1035a、1035b 透明板
936a、936b、1036a、1036b スリーブ
939、1039 貫通孔
640 連結シャフト
Claims (27)
- ケーシングと、
一部が前記ケーシング内に収容され、前記ケーシングに相対回転可能に取り付けられ、前記ケーシングの外側に延びた駆動部を備えた出力軸と、
前記ケーシング内で前記出力軸に外嵌した一方向クラッチと、
前記ケーシング内に収容され、前記一方向クラッチの外輪に対して径方向内側の端部が固定され、前記出力軸が前記一方向クラッチのトルク伝達方向に回転した際に巻き締められるゼンマイと、を有することを特徴とするゼンマイ式駆動装置。 - 出力軸が挿入される一方向クラッチと、
前記一方向クラッチに外嵌した筒状のブッシュと、
径方向内側の端部が前記ブッシュに固定され、前記出力軸が前記一方向クラッチのトルク伝達方向に回転した際に巻き締められるゼンマイと、
前記一方向クラッチ、前記ブッシュ及び前記ゼンマイを収容し、前記ブッシュの軸方向の端部を径方向外側から囲う位置規定部を備えたケーシングと、を有することを特徴とするゼンマイ式駆動装置。 - 前記ケーシングは、前記ゼンマイの外周面に対向する径方向内側部分に複数の凹部を備えた周壁を有し、
前記ゼンマイの径方向外側の端部は、径方向外側に突出し前記凹部に嵌り込む凸部を備え、
前記凸部は、前記ゼンマイの巻き締め時に、所定の巻き締め量までは前記凹部に嵌り込み、前記所定の巻き締め量を超えて前記出力軸が回転すると前記凹部から解放されることを特徴とする請求項1又は2に記載のゼンマイ式駆動装置。 - 前記凸部は、前記ゼンマイの略径方向に延び、前記凹部に接触する接触面を形成していることを特徴とする請求項3に記載のゼンマイ式駆動装置。
- 前記凹部は、前記ゼンマイが前記ゼンマイの最大回転数まで巻き締められた後に前記凸部が前記凹部から解放される大きさを有することを特徴とする請求項3又は4に記載のゼンマイ式駆動装置。
- 前記凸部は、前記ゼンマイが前記ゼンマイの最大回転数まで巻き締められた後に前記凹部から解放される形状を有することを特徴とする請求項3又は4に記載のゼンマイ式駆動装置。
- 前記ケーシングの外側にT溝が形成されていることを特徴とする請求項1ないし6のいずれか一項に記載のゼンマイ式駆動装置。
- 前記ケーシングは、前記ケーシングの内部を観察可能にする開口部を備えることを特徴とする請求項1ないし7のいずれか一項に記載のゼンマイ式駆動装置。
- ケーシングと、
一部が前記ケーシング内に収容され、前記ケーシングに相対回転可能に取り付けられた回転軸と、
前記ケーシング内で前記回転軸に外嵌した一方向クラッチと、
前記ケーシング内に収容され、前記一方向クラッチの外輪に対して径方向内側の端部が固定され、前記回転軸が前記一方向クラッチのトルク伝達方向に回転した際に巻き締められるゼンマイと、
前記ケーシングに固定された支持部と、
前記回転軸と略平行な方向で前記支持部に相対回転可能に取り付けられ、被駆動部材を駆動させる出力軸と、
前記回転軸のトルクを前記出力軸へ伝達するトルク伝達機構と、を有することを特徴とするゼンマイ式駆動装置。 - 前記出力軸は中空軸であることを特徴とする請求項9に記載のゼンマイ式駆動装置。
- さらに、前記出力軸と中心軸線を共通にした円筒状をして前記支持部から立ち上がり、径方向外側に延びるフランジを形成したフランジ部材を有することを特徴とする前記請求項9又は10に記載のゼンマイ式駆動装置。
- 前記ケーシングは、前記ゼンマイの外周面に対向する径方向内側部分に複数の凹部を備えた周壁を有し、
前記ゼンマイの径方向外側の端部は、径方向外側に突出し前記凹部に嵌り込む凸部を備え、
前記凸部は、前記ゼンマイの巻き締め時に、所定の巻き締め量までは前記凹部に嵌り込み、前記所定の巻き締め量を超えて前記回転軸が回転すると前記凹部から解放されることを特徴とする請求項9ないし11のいずれか一項に記載のゼンマイ式駆動装置。 - 前記凸部は、前記ゼンマイの略径方向に延び、前記凹部に接触する接触面を形成していることを特徴とする請求項12に記載のゼンマイ式駆動装置。
- 前記凹部は、前記ゼンマイが前記ゼンマイの最大回転数まで巻き締められた後に前記凸部が前記凹部から解放される大きさを有することを特徴とする請求項12又は13に記載のゼンマイ式駆動装置。
- 前記凸部は、前記ゼンマイが前記ゼンマイの最大回転数まで巻き締められた後に前記凹部から解放される形状を有することを特徴とする請求項12又は13に記載のゼンマイ式駆動装置。
- 前記ケーシングの外側にT溝が形成されていることを特徴とする請求項9ないし15のいずれか一項に記載のゼンマイ式駆動装置。
- 前記ケーシングは、前記ケーシングの内部を観察可能にする開口部を備えることを特徴とする請求項9ないし16のいずれか一項に記載のゼンマイ式駆動装置。
- 円柱面状の外周面を有するケーシングと、
前記ケーシングの径方向外側に固定されたタイヤと、
一部が前記ケーシング内に収容され、前記ケーシングに相対回転可能に取り付けられ、一部が前記ケーシングの外側に延びた中心軸と、
前記ケーシング内で前記中心軸に外嵌した一方向クラッチと、
前記ケーシング内に収容され、前記一方向クラッチの外輪に対して径方向内側の端部が固定され、前記中心軸に対して前記一方向クラッチのトルク伝達方向に相対回転した際に巻き締められるゼンマイと、を有することを特徴とする自走キャスター。 - 前記ケーシングは、前記ゼンマイの外周面に対向する径方向内側部分に複数の凹部を備えた周壁を有し、
前記ゼンマイの径方向外側の端部は、径方向外側に突出し前記凹部に嵌り込む凸部を備え、
前記凸部は、前記ゼンマイの巻き締め時に、所定の巻き締め量までは前記凹部に嵌り込み、前記所定の巻き締め量を超えて前記ケーシングが回転すると前記凹部から解放されることを特徴とする請求項18に記載の自走キャスター。 - 前記凸部は、前記ゼンマイの略径方向に延び、前記凹部に接触する接触面を形成していることを特徴とする請求項19に記載の自走キャスター。
- 前記凹部は、前記ゼンマイが前記ゼンマイの最大回転数まで巻き締められた後に前記凸部が前記凹部から解放される大きさを有することを特徴とする請求項19又は20に記載の自走キャスター。
- 前記凸部は、前記ゼンマイが前記ゼンマイの最大回転数まで巻き締められた後に前記凹部から解放される形状を有することを特徴とする請求項19又は20に記載の自走キャスター。
- さらに、被取付部に取り付けるための取付座と、
前記取付座から前記中心軸側へ延び、前記取付座と前記中心軸とを固定するフォークと、を有することを特徴とする請求項18ないし22のいずれか一項に記載の自走キャスター。 - さらに、第2のケーシングと、一部が前記第2のケーシング内に収容され、前記第2のケーシングに相対回転可能に取り付けられ、前記第2のケーシングの外側に延びた駆動部を有する回転軸と、前記第2のケーシングに収容され、前記回転軸を付勢する第2のゼンマイと、を備えたショックアブソーバーと、
一方の端部に長手方向と略垂直に前記中心軸を固定し、もう一方の端部に長手方向と略垂直に前記回転軸を固定した連結シャフトと、を有することを特徴とする請求項18ないし22のいずれか一項に記載の自走キャスター。 - 前記第2のケーシングの外側にT溝が形成されていることを特徴とする請求項24に記載の自走キャスター。
- 前記ケーシングは、前記ケーシングの内部を観察可能にする開口部を備えることを特徴とする請求項18ないし25のいずれか一項に記載の自走キャスター。
- 前記第2のケーシングは、前記第2のケーシングの内部を観察可能にする開口部を備えることを特徴とする請求項24又は25に記載の自走キャスター。
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EP16846241.4A EP3351792A4 (en) | 2015-09-18 | 2016-08-30 | SPRING DEVICE AND SELF-PROPELLED ROLL |
US15/760,695 US10323624B2 (en) | 2015-09-18 | 2016-08-30 | Spring-powered drive apparatus and self-propelled caster |
KR1020187009777A KR102048683B1 (ko) | 2015-09-18 | 2016-08-30 | 태엽식 구동 장치 및 자주 캐스터 |
CN201680054019.1A CN108026901B (zh) | 2015-09-18 | 2016-08-30 | 发条式驱动装置以及自行式脚轮 |
JP2017539814A JP6783472B2 (ja) | 2015-09-18 | 2016-08-30 | ゼンマイ式駆動装置及び自走キャスター |
HK18109991.0A HK1250767A1 (zh) | 2015-09-18 | 2018-08-02 | 發條式驅動裝置以及自行式腳輪 |
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- 2016-08-30 JP JP2017539814A patent/JP6783472B2/ja active Active
- 2016-08-30 CN CN201680054019.1A patent/CN108026901B/zh active Active
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HK1250767A1 (zh) | 2019-01-11 |
US20180258919A1 (en) | 2018-09-13 |
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US10323624B2 (en) | 2019-06-18 |
CN108026901B (zh) | 2020-01-10 |
CN108026901A (zh) | 2018-05-11 |
JP6783472B2 (ja) | 2020-11-11 |
JPWO2017047370A1 (ja) | 2018-09-27 |
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EP3351792A1 (en) | 2018-07-25 |
KR102048683B1 (ko) | 2019-11-27 |
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