CN106660392A - Performance wagon castor - Google Patents

Performance wagon castor Download PDF

Info

Publication number
CN106660392A
CN106660392A CN201680002270.3A CN201680002270A CN106660392A CN 106660392 A CN106660392 A CN 106660392A CN 201680002270 A CN201680002270 A CN 201680002270A CN 106660392 A CN106660392 A CN 106660392A
Authority
CN
China
Prior art keywords
lower plate
upper plate
chassis
spring
castor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201680002270.3A
Other languages
Chinese (zh)
Other versions
CN106660392B (en
Inventor
李相元
元大喜
金珍永
权五兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korea Institute of Industrial Technology KITECH
Original Assignee
Korea Institute of Industrial Technology KITECH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korea Institute of Industrial Technology KITECH filed Critical Korea Institute of Industrial Technology KITECH
Publication of CN106660392A publication Critical patent/CN106660392A/en
Application granted granted Critical
Publication of CN106660392B publication Critical patent/CN106660392B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0002Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0005Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by mounting method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/006Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0036Castors in general; Anti-clogging castors characterised by type of wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/006Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/04Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
    • B60B33/045Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted resiliently, by means of dampers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D15/00Steering not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Handcart (AREA)

Abstract

A performance wagon castor according to an embodiment of the present invention comprises: an upper plate, which is fixed to the bottom surface of a wagon; and a lower plate, which has one or more wheels provided on the lower portion thereof, and which is coupled to the upper plate to be able to rotate relative thereto, wherein a bearing fixing shaft is provided on the upper surface of the lower plate, a housing is provided on the lower surface of the upper plate so as to surround the bearing fixing shaft, and the upper plate and the lower plate are coupled via a bearing interposed between the bearing fixing shaft and the housing. According to the present invention, by providing a spring ball member, it is possible to supplement the horizontal restoring force, which has been degraded by bearing coupling between the upper plate and the lower plate. Therefore, it is possible to provide a performance wagon castor, which can freely move in any direction, and which can stably move loaded articles, etc. while always remaining forced against the floor regardless of corrugations etc. of the floor.

Description

Chassis castor is used in performance
Technical field
The present invention relates to a kind of performance uses chassis castor, more particularly to one kind to move freely with omnirange, and on ground Concavo-convex part also can be being adjacent in stable condition the mobile performance chassis castor for loading article etc. on ground all the time.
Background technology
Chassis (Wagon) is one kind utensil made by for the purpose of transporting goods, and can be become at the scene in each field The transportation means of full-automatic or partial automation, with mobile device, manufactured goods, product etc..For example, when for performing, activity etc. When, chassis can be used to carry the various equipment that performance needs and goods or even in stage space fitup stage property or people, also Or chassis is used as in itself fitup.
Fig. 1 shows an example of this chassis 100.
Chassis 100 possesses four wheels 148,150,152,154 and driving implement (driving wheel) 144,146.Wheel 148,150, 152nd, 154 can be the rotary body of castor (caster) or arbitrary other suitable types.
Castor, and can side entirely such as the form of the wheel for being arranged at chassis bottom surface (wheel), to disperse the weight of driving wheel To movement, so that the movement of chassis is smooth.
Generally, castor be incorporated into by web, the rotary movable for being arranged at chassis bottom surface web car body and The wheel for being arranged at car body is constituted.
On the other hand, Fig. 6 shows that the castor mechanism of typical existing chassis (logs in special permission 10- equivalent to Korea No. 0875537 Fig. 6), which use spring mechanism.But, the mechanism structure is complicated, and needs according to loading article Weight change adjusts spring constant.However, finding out appropriate spring constant not a duck soup, and persistently there is asking for spring vibration Topic.
The content of the invention
Technical problem
Present invention seek to address that the problems referred to above, it is an object of the invention to provide one kind can be moved freely with omnirange, and Concavo-convex part on ground also can be being adjacent to all the time in stable condition the mobile performance chassis castor for loading article etc. on ground.
Technical scheme
Performance according to an embodiment of the invention includes upper plate and lower plate with chassis castor.The upper plate is fixed on chassis Bottom surface;Possesses more than one wheel in the bottom of the lower plate, the lower plate can with the relative rotation be incorporated into the upper plate. Possess bearing fixing axle above the lower plate, possess the shell around the bearing fixing axle below the upper plate, with Make the upper plate with the lower plate by being combined with the bearing between the shell between the bearing fixing axle.
Additionally, the performance chassis castor also includes more than one spring ball part, the spring ball part is linking Recuperability of the lower plate to the horizontal direction of the upper plate is supplemented in the state of the upper plate.
Additionally, the spring ball part includes shock-absorbing spring and ball wheel.The shock-absorbing spring possesses spring and shock absorber, The shock absorber is located at the spring inner, for absorbing the vibration of the spring;The ball wheel possesses in the shock-absorbing spring Lower end so that the lower plate maintains the state that can rotate against for the upper plate.
Additionally, the ball wheel can be rolled with the state for contacting the lower plate in the lower plate.
Additionally, the lower, outer perimeter along the lower plate possesses three wheels with predetermined distance, and to have with this identical interval Standby three spring ball parts.
Additionally, the bearing is self-aligning ball-bearing.
The effect of invention
Performance chassis castor of the invention uses self-aligning ball-bearing, such that it is able to maintain upper plate and lower plate Relative recuperability.
Additionally, by possessing spring ball part, the level side for being combined and being reduced with the bearing of lower plate because of upper plate can be supplemented To recuperability.It is thus possible to provide one kind can be moved freely with omnirange, and the concavo-convex part on ground also can be pasting all the time The tightly movement in stable conditionly in face loads the performance chassis castor of article etc..
Additionally, using the ball wheel possessed in the lower end of spring ball part, in performance chassis, can often guarantee wheel 360 degree rotation.
Description of the drawings
Fig. 1 is the schematic diagram of an example of chassis.
Fig. 2 is the structural representation of performance chassis castor according to an embodiment of the invention.
Fig. 3 is the sectional view of the internal structure of chassis castor of the performance shown in Fig. 2.
Fig. 4 is the enlarged drawing of the spring ball part of chassis castor of the performance shown in Fig. 2.
Fig. 5 is the schematic diagram of use and its effect of chassis castor of the performance shown in Fig. 2.
Fig. 6 is the schematic diagram of the spring mechanism of existing chassis castor.
Specific embodiment
Performance chassis castor according to an embodiment of the invention is illustrated below.
Castor described below can be used to include automatic guided vehicle (the Automated Guided of any type of chassis Vehicle;AGV) etc..Generally, chassis or AGV are a kind of around the path of navigation one week for being arranged at factory, warehouse, home-delivery center etc. And it is mobile can be with horseless vehicle.Especially, when for performance or activity, chassis can be used to carry what performance needed Various equipment and goods or even in stage space fitup stage property or people, also or chassis is used as moving dance in itself Platform.Castor described below is not limited to certain types of chassis, and can be together for arbitrary with the chassis in above-mentioned example Other kinds of chassis.
Fig. 2 is the primary structure schematic diagram of performance chassis castor according to an embodiment of the invention, and Fig. 3 is shown in Fig. 2 Internal structure sectional view.
With reference to Fig. 2 and Fig. 3, the performance of an embodiment of the invention includes upper plate 220, lower plate with chassis castor 200 240 and spring ball part 260,262,264.
Upper plate 220 is fixed on the bottom of chassis, by being formed at its pericentral joint bolt of multiple bolts hole 221 Deng the upper plate 220 can be fixed on chassis.
In an embodiment of the present invention, upper plate 220 is combined with lower plate 240 by bearing.
Specifically, the approximate centre of lower plate 240 possesses bearing fixing axle 241;Upper plate 220 possesses shell 223, with around screening Lid bearing fixing axle 241.Ball bearing 243 can be installed between bearing fixing axle 241 and shell 223.That is, upper plate 220 with Lower plate 240 is combined by bearing 243, so as to lower plate 240 can be rotated freely relative to upper plate 220.Although making in the present embodiment With ball bearing 243, but be not limited to this, as set forth above, it is possible to be suitable for upper plate with lower plate the phase centered on bearing fixing axle The all bearing modes that mutually can be combined with the relative rotation.
As described above, being rotatably engaged the lower plate 240 in upper plate 220, more than one wheel, example are installed in its underpart Such as three wheels 245,247,249, so as in chassis, disperse the negative loading of driving wheel 144,146, at the same time can be to Omnirange is moved freely.
In an embodiment of the present invention, along lower plate 240 lower, outer perimeter with predetermined distance possess three wheels 245,247, 249.These three wheels 245,247,249 are developed for the minimum of rolling friction, not only can stably carry big loading Tote, can also make castor maintain abreast to be adjacent to the state on ground all the time.
On the other hand, spring ball part 260,262,264 supplements lower plate 240 to upper plate with the state for being linked to upper plate 220 The recuperability of 220 horizontal direction.Spring ball part 260,262,264, by the part insertion of its upper end upper plate is formed at 220 connecting hole, can be fixed using connecting structure 261.
As described above, in an embodiment of the present invention, upper plate 220 is combined with lower plate 240 by bearing, so as to lower plate 240 Can rotate freely relative to upper plate 220.The loading of tote when being driven according to chassis and the state of ground etc., lower plate 240 can phase For the angle that bearing fixing axle 241 inclines regulation, for example, can tilt to about 4 degree or so.But, if long-time repeatedly this Kind of state, the fixing axle that can run out bearing 241 shortens its life-span, and the recuperability for making the horizontal direction of castor declines, so as to cannot be steady Surely loading article is carried.
However, the spring ball part 260,262,264 of the present invention possesses between upper plate 220 and lower plate 240, such that it is able to Supplement the recuperability of the horizontal direction reduced because bearing is combined.That is, spring ball part 260,262,264 be configured to relative to Lower plate 240 flexibly supports upper plate 220, while can roll in lower plate 240, so as in the movement for not limiting lower plate 240 Under the premise of, the recuperability to inclination angle can be supplemented.In this regard, will be described in detail below.
Fig. 4 is the enlarged drawing of the performance with the spring ball part 260 of chassis castor of an embodiment of the invention.
With reference to Fig. 4, spring ball part 260 includes shock-absorbing spring 263 and ball wheel 265.
The spring inner side of shock-absorbing spring 263 is inserted with the shock absorber of absorbable vibration, such that it is able to suppress spring vibration Repeatedly occur.
Ball wheel 265 possesses in the lower end of shock-absorbing spring 263, so that lower plate 240 maintains rotatable state.That is, ball wheel 265 exists The function of being similar to another Caster (caster) is exercised in spring ball part 260, such that it is able in lower plate 240 being adjacent to all the time The state of lower plate 240 is rolled.Because shock-absorbing spring 263 is linked to upper plate 220, with the motion of the lower plate 240 of rotation, ball wheel 265 roll in lower plate 240 along certain circuit orbit.
In an embodiment of the present invention, along lower plate 240 lower, outer perimeter with predetermined distance possess three wheels 245,247, 249, correspondingly, can possess three spring ball parts 260,262,264 to be spaced with this identical.By possessing three springs Ball part 260,262,264, both can be balanced with three formation of wheel 245,247,249, and big heavy burden can be stably carried again Tote.
Hereinafter, the use and its effect of performance according to embodiments of the present invention chassis castor 200 are illustrated.
As reference, for the use for illustrating performance according to embodiments of the present invention chassis castor 200 and its effect Each structure, for purposes of illustration only, by the reference used in the explanation for continuing to use above-mentioned performance chassis castor 200, closing In the explanation that it repeats, here is omitted.
Performance according to embodiments of the present invention chassis castor 200, to include the form of triple wheels 245,247,249, Tote or as manned fitup chassis suitable for carrying big loading in occasions such as performance, activities, will roll While friction is minimized, tote can be stably carried.
With reference to Fig. 1, performance chassis castor 200 according to embodiments of the present invention is suitable for chassis construction, and incalculability is limited Ground is according to the default bottom surface for arranging and being fixed on chassis 100.
With reference to Fig. 3, upper plate 220 is fixed on the bottom surface of chassis, when chassis drives, is combined with upper plate 220 by bearing 243 Lower plate 240 can be rotated freely relative to upper plate 220 or so.This is because of three installed with predetermined distance along the periphery of lower plate 240 Wheel 245,247,249 is freely rolled according to the loading of tote and the state of ground.
Now, with reference to Fig. 5, because the characteristic of bearing makes so, upper plate 220 can be inclined relative to bearing fixing axle 241 and specified Angle, for example slope to about 4 degree or so, according to inclined direction, three spring ball parts 260,262,264 elasticity respectively Ground compression is lax, seeks the equilibrium of horizontal direction.Spring ball part 260 is made up of shock-absorbing spring 263 and ball wheel 265, so as to Flexibly support upper plate 220 relative to lower plate 240, and effectively absorb it may happen that continuation vibration, at the same time, by In being configured to roll in lower plate 240, therefore supplement to inclination angle on the premise of the movement of lower plate 240 is not limited Recuperability.Finally, chassis can load article etc. to be adjacent to the in stable condition mobile of ground all the time.
As described above, performance chassis castor 200 according to embodiments of the present invention possess spring ball part 260,262, 264, such that it is able to supplement the recuperability of the horizontal direction for being combined and being reduced with the bearing of lower plate 240 because of upper plate 220.So as to can Can be moved freely with omnirange with providing one kind, and the concavo-convex part on ground also can be being adjacent to all the time the in stable condition of ground The mobile performance chassis castor for loading article etc..
As described above, performance chassis castor according to an embodiment of the invention uses self-aligning ball-bearing, i.e. make With lubrication groove there is the track of two row tracks, foreign steamer to form sphere, the center of curvature of sphere is consistent with bearing centre, thus in making Wheel, ball and retainer have self-aligning ball-bearing (the self aligning of harmonious aligning performance relative to foreign steamer ball bearing).Additionally, using spring ball part, (jamming) problem and inclination angle are blocked to utensil so as to possess Recuperability.
In addition, the lower end of spring ball part is sticked ball wheel to contact lower plate all the time, and then guarantees 360 degree of free rotations of wheel Turn.Especially, when this chassis is used as performing device, compared with the chassis that other industry spots are used, it is ensured that 360 degree of wheel Rotate freely particularly important.Reason is, because the characteristic performed makes so, frequently to require more than 360 degree of rotation.
More than, embodiments of the invention are illustrated, but the scope not limited to this of the claim of the present invention, but Easily change from embodiments of the invention including the general technical staff by belonging to the present invention and be construed to the scope being equal to It is interior to have altered and change.
The possibility of industrial application
The present invention can be used for performance chassis, performance chassis castor, automatic guided vehicle etc..

Claims (6)

1. chassis castor is used in a kind of performance, including:
Upper plate, is fixed on the bottom surface of chassis;And
Lower plate, it possesses more than one wheel in bottom, and the lower plate can with the relative rotation be incorporated into the upper plate,
Possess bearing fixing axle above the lower plate, possess below the upper plate around the outer of the bearing fixing axle Shell, the upper plate is with the lower plate by being combined with the bearing between the shell between the bearing fixing axle.
2. chassis castor is used in performance according to claim 1, it is characterised in that
Also include more than one spring ball part, the spring ball part supplements the lower plate with the state for being linked to the upper plate Recuperability to the horizontal direction of the upper plate.
3. chassis castor is used in performance according to claim 2, it is characterised in that
The spring ball part includes:
Shock-absorbing spring, the shock-absorbing spring possesses spring and shock absorber, and the shock absorber is located at the spring inner, for inhaling Receive the vibration of the spring;And
Ball wheel, the ball wheel possesses in the lower end of the shock-absorbing spring, so that the lower plate being capable of phase for upper plate maintenance To the state for rotating.
4. chassis castor is used in performance according to claim 3, it is characterised in that
The ball wheel can be rolled with the state for contacting the lower plate in the lower plate.
5. chassis castor is used in performance according to claim 4, it is characterised in that
Lower, outer perimeter along the lower plate possesses three wheels with predetermined distance, and to possess described in three with this identical interval Spring ball part.
6. chassis castor is used in performance according to claim 1, it is characterised in that
The bearing is self-aligning ball-bearing.
CN201680002270.3A 2015-01-20 2016-01-20 Performance trolley castor Active CN106660392B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020150009156A KR101714748B1 (en) 2015-01-20 2015-01-20 Caster of wagon for performances
KR10-2015-0009156 2015-01-20
PCT/KR2016/000572 WO2016117917A1 (en) 2015-01-20 2016-01-20 Performance wagon castor

Publications (2)

Publication Number Publication Date
CN106660392A true CN106660392A (en) 2017-05-10
CN106660392B CN106660392B (en) 2019-04-19

Family

ID=56417380

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201680002270.3A Active CN106660392B (en) 2015-01-20 2016-01-20 Performance trolley castor

Country Status (4)

Country Link
JP (1) JP6342062B2 (en)
KR (1) KR101714748B1 (en)
CN (1) CN106660392B (en)
WO (1) WO2016117917A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190019502A (en) 2017-08-18 2019-02-27 안중명 Wheel to improve anti-noise and vibration
KR101886353B1 (en) 2018-04-24 2018-08-09 (주)좋은무대 Caster for moving stage
KR101985540B1 (en) 2019-01-09 2019-06-03 장용익 Up/down building structure
KR102279431B1 (en) 2019-11-13 2021-07-20 한국생산기술연구원 Movable platform
KR102297141B1 (en) 2021-06-16 2021-09-02 주식회사 라오닉스 Automated Guided Vehicles
KR102346746B1 (en) 2021-07-12 2022-01-03 주식회사 라오닉스 Automated guided vehicles having Height adjustable jig
KR102382652B1 (en) 2021-11-30 2022-04-08 주식회사 라오닉스 Jig unit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09226307A (en) * 1996-02-28 1997-09-02 Nobuchika Murata Buffer caster
KR100316401B1 (en) * 1999-09-01 2001-12-12 광 섭 정 A caster
JP2008155780A (en) * 2006-12-25 2008-07-10 Tcm Corp Wheel device for carrying vehicle
JP2008213542A (en) * 2007-02-28 2008-09-18 Kurashiki Kako Co Ltd Caster
KR20140057918A (en) * 2012-11-05 2014-05-14 한채진 Fixing and rotating cart caster

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6253978U (en) * 1985-09-25 1987-04-03
JPH047976U (en) * 1990-05-11 1992-01-24
JPH0466164U (en) * 1990-10-12 1992-06-10
JP3066774B2 (en) * 1991-08-26 2000-07-17 カヤバ工業株式会社 Damper device
JP2579493Y2 (en) * 1991-09-27 1998-08-27 エスエムシー株式会社 Turntable cylinder
JP2742639B2 (en) * 1992-01-17 1998-04-22 株式会社新興製作所 Turntable for OA equipment
JPH08105234A (en) * 1994-10-07 1996-04-23 Daifuku Co Ltd Turning device of sky parking facility
JPH09278236A (en) * 1996-04-11 1997-10-28 Mitsubishi Heavy Ind Ltd Rolled paper carrying truck
JP2000198446A (en) * 1999-01-05 2000-07-18 Dainippon Printing Co Ltd Transport truck
KR100875537B1 (en) 2007-05-29 2008-12-24 주식회사 우경피엔제이 Unmanned loan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09226307A (en) * 1996-02-28 1997-09-02 Nobuchika Murata Buffer caster
KR100316401B1 (en) * 1999-09-01 2001-12-12 광 섭 정 A caster
JP2008155780A (en) * 2006-12-25 2008-07-10 Tcm Corp Wheel device for carrying vehicle
JP2008213542A (en) * 2007-02-28 2008-09-18 Kurashiki Kako Co Ltd Caster
KR20140057918A (en) * 2012-11-05 2014-05-14 한채진 Fixing and rotating cart caster

Also Published As

Publication number Publication date
KR101714748B1 (en) 2017-03-09
WO2016117917A1 (en) 2016-07-28
KR20160089664A (en) 2016-07-28
CN106660392B (en) 2019-04-19
JP2017523083A (en) 2017-08-17
JP6342062B2 (en) 2018-06-13

Similar Documents

Publication Publication Date Title
CN106660392A (en) Performance wagon castor
US10071596B2 (en) Omnidirectional pinion wheel
EP3660619B1 (en) Two wheel automatic guided vehicles used in combination
US9580002B2 (en) Omnidirectional vehicle transport
US10850843B2 (en) Roller assembly of a cargo loading system
WO2016136608A1 (en) Universal caster
WO2014013753A1 (en) Swivel caster
US4316305A (en) Swivel caster assembly
US20100247281A1 (en) Double Offset Caster System
CA2389532A1 (en) Swivel wheel
EP3313671B1 (en) Omnidirectional pinion wheel
JP7457995B2 (en) Display device and stand
US5672012A (en) Cargo deck bearing
CN204256526U (en) A kind of cross frame decomposes the gravity attitude stabilization device of motion
CN106314032A (en) Linear reversing follower wheel
JPH0140723Y2 (en)
KR200398110Y1 (en) A thrust bearing
CN204940940U (en) Terrain self-adaptive is universal double-jointed takes turns
US20200189887A1 (en) Rail-Based Floor Conveyor System
US1421626A (en) Caster
CN211685166U (en) Transfer equipment
JP6938015B2 (en) Caster and mobile
JP2000110990A (en) Bearing body
US20160368319A1 (en) Balanced wheel swivel system without adding vertical dimension to wheel
US620672A (en) Victor e

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant