CN103009922B - Caster wheel - Google Patents

Caster wheel Download PDF

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Publication number
CN103009922B
CN103009922B CN201210585938.5A CN201210585938A CN103009922B CN 103009922 B CN103009922 B CN 103009922B CN 201210585938 A CN201210585938 A CN 201210585938A CN 103009922 B CN103009922 B CN 103009922B
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CN
China
Prior art keywords
castor
transmission shaft
wheel
bore
bearing plate
Prior art date
Application number
CN201210585938.5A
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Chinese (zh)
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CN103009922A (en
Inventor
胡坚兴
Original Assignee
浙江易得力脚轮有限公司
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Application filed by 浙江易得力脚轮有限公司 filed Critical 浙江易得力脚轮有限公司
Priority to CN201210585938.5A priority Critical patent/CN103009922B/en
Publication of CN103009922A publication Critical patent/CN103009922A/en
Application granted granted Critical
Publication of CN103009922B publication Critical patent/CN103009922B/en

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Abstract

The invention provides a caster wheel, belongs to the technical field of machinery, and solves the problems of small damping range and poor buffering effect in the conventional damping spring caster wheel. The caster wheel comprises a foot stand capable of being mounted at the bottom of equipment and a wheel connected with the foot stand, wherein a through connection hole is formed in the side part of the foot stand; a transmission shaft capable of rotating is arranged at the connection hole; a buffer rod is arranged between the transmission shaft and the inner wall of the connection hole; the buffer rod is compressed under the action of gravity of the equipment; supporting plates are fixedly connected to the two ends of the transmission shaft; and the other ends of the supporting plates fixedly connected with the transmission shaft are connected with the wheel. The caster wheel has the advantages of good damping and buffering effects, long service life, simple structure and the like.

Description

A kind of castor

Technical field

The invention belongs to field of mechanical technique, relate to a kind of castor, particularly relate to a kind of castor with pooling feature.

Background technology

So-called castor refers to and to be connected with the bottom of conveying arrangement, and the wheel that can freely change direction, it is broadly divided into fixed castor and rotary-type castor.Castor is as the important component part of numerous carrying appliance, be not only ground-engaging element, also bear the function of damping, particularly in the irregular logistics place of surface condition, the cushioning effect of castor, all plays crucial influence to the noise of transport operation quality and operating environment.Especially for industrial castor, industrial castor mainly refers to a kind of castor product for factory or mechanical equipment, and this kind of castor requires to have very high impact resistance and intensity.

At present, most industry castor on market generally adopts spring as shock absorption device, when carrying out caster design, designer generally selects damping spring according to the maximum load of castor, effective damping narrow range of this structure castor, when particularly nothing places other weights in zero load or mechanical equipment, almost can not play the effect of damping, buffering.And when mechanical equipment is advanced or price comparison is expensive, it is just higher to the bumper and absorbing shock performance requriements of industrial castor, adopt the industrial castor of damping spring just can not meet the requirement of these equipment to castor cushion characteristic preferably.

Summary of the invention

The object of the invention is the problems referred to above existed for prior art, propose a kind of castor that can produce buffering, good buffer effect in time to impulsive force.

Object of the present invention realizes by following technical proposal: a kind of castor, comprise a foot rest that can be installed on device bottom and the wheel be connected with above-mentioned foot rest, it is characterized in that, described foot rest sidepiece has the connecting bore run through, described connection hole has the transmission shaft that can rotate, fender pile is provided with between described transmission shaft and the inwall of connecting bore, described fender pile is compressed under the Action of Gravity Field of equipment, the two ends of described transmission shaft are fixed with stay bearing plate, and the other end that described stay bearing plate and transmission shaft are connected and above-mentioned wheel are connected.

Castor is arranged on the bottom of equipment by foot rest, and under normal circumstances, equipment will produce the power pressed down to castor under the Action of Gravity Field of himself, the state making the fender pile between transmission shaft and connecting bore inwall be in a pretension to compress.When the weight on equipment increases suddenly and produces larger impulsive force to castor, fender pile just can be further compressed this impulsive force generation effect in time under original state, because the fender pile of virgin state has had certain cushion effect, therefore now fender pile is larger to the counteraction of this impulsive force, and the buffer action of formation is more obvious.

In above-mentioned castor, the inwall of described connecting bore is evenly equipped with some raised lines along its circumference, and described transmission shaft comprises the projection that connecting rod in column and some circumferences are distributed in connecting rod sidepiece, and described fender pile is between projection and raised line.

Projection and raised line can play a spacing effect to the rotation of transmission shaft, when projection to raised line against time just can by fender pile compression between the two, thus make fender pile form buffer action.

In above-mentioned castor, outside described wheel, be coated with the cushion layer that one deck is made up of elastomeric material.Cushion layer is also playing certain shock absorbing effect with during earth surface, superimposed with the effect of fender pile, for castor provides dual damping, buffering function.

In above-mentioned castor, described fender pile is PU compressed rod.PU rod has good physical property, can keep higher elasticity, possess the Combination property not available for common plastics and rubber in wider durometer level.

In above-mentioned castor, described stay bearing plate sidepiece has boss, and described boss has the slot identical with connecting rod cross sectional shape, and the end of described connecting rod embeds in slot.Inserted by interlinking lever end in slot, recycling screw just can make both be connected.

In above-mentioned castor, described boss is resisted against the port of connecting bore, and be provided with some balls between described connecting bore port and stay bearing plate, ball is circumferentially distributed in the sidepiece of boss.Arrange when ball can ensure that stay bearing plate rotates more smooth and easy, reaction when increasing suddenly the power acted on castor is sensitiveer.

In above-mentioned castor, being also fixed with outside described stay bearing plate can by trim coated for wheel sidepiece.Utilize trim by coated for wheel sidepiece, the overall appearance degree of whole castor can be improved like this.

Compared with prior art, this castor has the following advantages:

1, this castor utilizes the self gravitation effect of equipment to play the effect of a pretension compression to fender pile, make fender pile can produce good buffer action to the impulsive force of momentary action on castor, can absorb in time and impact and vibrations, also extend the service life of castor simultaneously;

2, this castor coordinates at the arranged outside cushion layer of wheel the effect forming double buffering with fender pile, and buffering effect is better, possesses higher practical value and wider applicability;

3, this castor utilizes PU compressed rod as fender pile, by the excellent Combination property of PU rod, increases the bumper and absorbing shock scope of this castor, guarantees that fender pile can generation effect in time;

4, this Castor structure is simple, novel, and at wheel arranged outside trim, make the profile of castor entirety more attractive in appearance, and globality is better.

Accompanying drawing explanation

Fig. 1 is the perspective view of this castor.

Fig. 2 is the exploded drawings at stay bearing plate in this castor, transmission shaft and foot rest place.

Fig. 3 is cutaway view when fender pile is in pretension compressive state in this castor.

Fig. 4 is the cutaway view that in this castor, fender pile is in compressive state.

In figure, 1, foot rest; 2, wheel; 3, connecting bore; 4, transmission shaft; 5, fender pile; 6, stay bearing plate; 7, raised line; 8, connecting rod; 9, projection; 10, cushion layer; 11, boss; 12, slot; 13, ball; 14, trim.

Detailed description of the invention

Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.

Embodiment one

As Figure 1-Figure 4, a kind of castor, comprise a foot rest 1 that can be installed on device bottom and the wheel 2 be connected with foot rest 1, foot rest 1 sidepiece has the connecting bore 3 run through, and the inwall of connecting bore 3 is evenly equipped with some raised lines 7 along its circumference.Connecting bore 3 place has the transmission shaft 4 that can rotate, and transmission shaft 4 comprises the projection 9 that connecting rod 8 in column and some circumferences are distributed in connecting rod 8 sidepiece, is provided with fender pile 5 between projection 9 and raised line 7.In the present embodiment, fender pile 5 is PU compressed rod, and the outside of wheel 2 is coated with one deck cushion layer 10, and cushion layer 10 is made up of elastomeric material.

As shown in Figure 2, Figure 3 and Figure 4, the two ends of transmission shaft 4 are fixed with stay bearing plate 6, and the sidepiece of stay bearing plate 6 has boss 11, and boss 11 is resisted against the port of connecting bore 3, are provided with some balls 13 between the port of connecting bore 3 and stay bearing plate 6.Boss 11 has the slot 12 identical with connecting rod 8 cross sectional shape, the end of connecting rod 8 embeds in slot 12, and stay bearing plate 6 is connected by the screw that is passed slot 12 and connecting rod 8 mutually with transmission shaft 4.In the present embodiment, be also fixed with can by trim 14 coated for wheel 2 sidepiece in the outside of stay bearing plate 6.

This castor when mounted, transmission shaft 4 is put into connecting bore 3, and fender pile 5 is put between the projection 9 and the raised line 7 of connecting bore 3 of transmission shaft 4, and then the slot 12 of stay bearing plate 6 convex platform 11 is aimed at insertion respectively with the end, two ends of connecting rod 8 on transmission shaft 4, stay bearing plate 6 and transmission shaft 4 are fixed together by recycling screw.The boss 11 of stay bearing plate 6 can be resisted against the port of connecting bore 3, conveniently the rotation of stay bearing plate 6, can place ball 13, and make ball 13 between stay bearing plate 6 and connecting bore 3 port at the sidepiece of boss 11.

As shown in Figure 3, this castor is installed on device bottom by foot rest 1, under the Action of Gravity Field of equipment self, the state making the fender pile 5 between the raised line 7 on the projection 9 and connecting bore 3 inwall of transmission shaft 4 be in a pretension all the time to compress, like this when equipment also can not produce larger vibrations and noise when mobile.

As shown in Figure 4, and when the weight on equipment increases weight suddenly, when causing the impulsive force acted on castor to increase suddenly, equipment and foot rest 1 together sink, wheel 2 and stay bearing plate 6 is caused to be pressed downward, stay bearing plate 6 is causing transmission shaft 4 to produce the rotation of certain angle in the process pressed down, fender pile 5 is further compressed, because fender pile 5 has been in one by the state compressed before, therefore the now counteraction that produces this impulsive force of fender pile 5 is larger, namely buffer action is more obvious, and buffering effect is better.Meanwhile, the cushion layer 10 be coated on outside wheel 2 also can play buffer action to a certain extent when wheel 2 is pressed down.

In addition, in order to improve the practicality of this castor, also can select to arrange stop mechanism on this castor, this makes it possible to make this castor possess the dual-use function of buffering and shock preventing and braking simultaneously.

Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims (6)

1. a castor, comprise a foot rest (1) that can be installed on device bottom and the wheel (2) be connected with above-mentioned foot rest (1), it is characterized in that, described foot rest (1) sidepiece has the connecting bore (3) run through, described connecting bore (3) place has the transmission shaft (4) that can rotate, fender pile (5) is provided with between described transmission shaft (4) and the inwall of connecting bore (3), described fender pile (5) is compressed under the Action of Gravity Field of equipment, the two ends of described transmission shaft (4) are fixed with stay bearing plate (6), one end that described stay bearing plate (6) is not connected with transmission shaft (4) is connected with above-mentioned wheel (2), the inwall of described connecting bore (3) is evenly equipped with some raised lines (7) along its circumference, described transmission shaft (4) comprises the projection (9) that connecting rod (8) in column and some circumferences are distributed in connecting rod (8) sidepiece, described fender pile (5) is positioned between projection (9) and raised line (7).
2. castor according to claim 1, is characterized in that, described wheel (2) outside is coated with the cushion layer (10) that one deck is made up of elastomeric material.
3. castor according to claim 1, is characterized in that, described fender pile (5) is PU compressed rod.
4. the castor according to claim 1 or 2 or 3, it is characterized in that, described stay bearing plate (6) sidepiece has boss (11), described boss (11) has the slot (12) identical with connecting rod (8) cross sectional shape, and the end of described connecting rod (8) embeds in slot (12).
5. castor according to claim 4, it is characterized in that, described boss (11) is resisted against the port of connecting bore (3), be provided with some balls (13) between described connecting bore (3) port and stay bearing plate (6), ball (13) is circumferentially distributed in the sidepiece of boss (11).
6. the castor according to claim 1 or 2 or 3, is characterized in that, described stay bearing plate (6) outside is also fixed with can by trim (14) coated for wheel (2) sidepiece.
CN201210585938.5A 2012-12-28 2012-12-28 Caster wheel CN103009922B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210585938.5A CN103009922B (en) 2012-12-28 2012-12-28 Caster wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210585938.5A CN103009922B (en) 2012-12-28 2012-12-28 Caster wheel

Publications (2)

Publication Number Publication Date
CN103009922A CN103009922A (en) 2013-04-03
CN103009922B true CN103009922B (en) 2015-06-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210585938.5A CN103009922B (en) 2012-12-28 2012-12-28 Caster wheel

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103568715A (en) * 2013-11-07 2014-02-12 安徽工贸职业技术学院 Movable roller
CN104960385A (en) * 2015-06-30 2015-10-07 苏州先锋物流装备科技有限公司 Balance wheel mechanism with shock-absorbing function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2140473A1 (en) * 1995-01-18 1996-07-19 Albert W. Larson Sprung castor wheel assembly
US6425161B1 (en) * 2000-06-13 2002-07-30 Superior Tire & Rubber Corporation Industrial caster wheel with elastomeric spring/damper member
EP1253023B1 (en) * 2001-04-24 2004-07-21 Heinrich Blickle GmbH & Co. KG Castor with elastic suspension
US8210550B2 (en) * 2008-06-09 2012-07-03 Orbit Baby, Inc. Suspension system for baby stroller
CN203093614U (en) * 2012-12-28 2013-07-31 胡坚兴 Truckle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6499184B2 (en) * 2001-05-14 2002-12-31 Ross Design & Engineering, Inc. Elastomeric biased caster

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2140473A1 (en) * 1995-01-18 1996-07-19 Albert W. Larson Sprung castor wheel assembly
US6425161B1 (en) * 2000-06-13 2002-07-30 Superior Tire & Rubber Corporation Industrial caster wheel with elastomeric spring/damper member
EP1253023B1 (en) * 2001-04-24 2004-07-21 Heinrich Blickle GmbH & Co. KG Castor with elastic suspension
US8210550B2 (en) * 2008-06-09 2012-07-03 Orbit Baby, Inc. Suspension system for baby stroller
CN203093614U (en) * 2012-12-28 2013-07-31 胡坚兴 Truckle

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Effective date of registration: 20150505

Address after: Taizhou City, Zhejiang province 317605 Yuhuan County Truman Town Industrial Park of science and technology

Applicant after: Zhejiang EDL Casters Co., Ltd.

Address before: Truman town Yuhuan County road Taizhou City, Zhejiang province environmental protection 317605 No. 96

Applicant before: Hu Jianxing

ASS Succession or assignment of patent right

Owner name: ZHEJIANG EDL CASTERS CO., LTD.

Free format text: FORMER OWNER: HU JIANXING

Effective date: 20150505

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CP03 Change of name, title or address

Address after: 317605 Zhejiang city of Yuhuan province Truman Town Industrial Park of science and technology

Patentee after: Zhejiang easy foot wheel Limited by Share Ltd

Address before: Taizhou City, Zhejiang province 317605 Yuhuan County Truman Town Industrial Park of science and technology

Patentee before: Zhejiang EDL Casters Co., Ltd.