CN100589996C - Plastic wheel assembly and mounting sleeve with stabilizing recess - Google Patents

Plastic wheel assembly and mounting sleeve with stabilizing recess Download PDF

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Publication number
CN100589996C
CN100589996C CN03805079A CN03805079A CN100589996C CN 100589996 C CN100589996 C CN 100589996C CN 03805079 A CN03805079 A CN 03805079A CN 03805079 A CN03805079 A CN 03805079A CN 100589996 C CN100589996 C CN 100589996C
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CN
China
Prior art keywords
axle sleeve
axle
wheel
end wall
described axle
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.)
Expired - Fee Related
Application number
CN03805079A
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Chinese (zh)
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CN1638979A (en
Inventor
迈克尔·A·莫里斯
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Geo Plastics Inc
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Geo Plastics Inc
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Filing date
Publication date
Priority claimed from US10/044,621 external-priority patent/US6637835B2/en
Application filed by Geo Plastics Inc filed Critical Geo Plastics Inc
Publication of CN1638979A publication Critical patent/CN1638979A/en
Application granted granted Critical
Publication of CN100589996C publication Critical patent/CN100589996C/en
Anticipated expiration legal-status Critical
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65FGATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00Refuse receptacles; Accessories therefor
    • B65F1/14Other constructional features; Accessories
    • B65F1/1468Means for facilitating the transport of the receptacle, e.g. wheels, rolls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B37/00Wheel-axle combinations, e.g. wheel sets
    • B60B37/10Wheel-axle combinations, e.g. wheel sets the wheels being individually rotatable around the axles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B5/00Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
    • B60B5/02Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material

Abstract

A plastic wheel (122, 222) and wheel mounting sleeve (127, 227, 327, 427) used to releasably secure the wheel (122, 222) onto an axle (123, 223). The wheel mounting sleeve (127, 227, 327, 427) preferably includes a resilient, radially displaceable, axially extending, cantilevered finger (146, 246, 346, 446) which includes an axle-engaging lug (155, 255, 355, 455), while a wheel- engaging shoulderis provided on the sleeve by an annular rib (201, 301). The sleeve shoulders latch the sleeve (127, 227, 327, 427) to the axle (123, 223) and the wheel (122, 222) to the sleeve. The sleeve (127, 227,327, 427) includes an axle stabilizing recess (198, 298, 398, 498) positioned in an end wall (158, 258, 358, 458), which receives an axle stub (199, 299) that supports the axle (123, 223) against lateral loading and stabilizes it to reduce wobble, chatter and vibration.

Description

Plastics wheels and have an installation axle sleeve of stablizing groove
Related application
This number of patent application that is based on common pending trial is 09/687669, the applying date is on December 12nd, 2000 and be called the partial continuous application of " plastics wheels and improved installation axle sleeve thereof ", and the application of this common pending trial is based on again that number of patent application is 09/507595, the applying date is on February 18th, 2000 and is called the partial continuous application of the application of " plastics wheels and axle sleeve is installed ".
Technical field
The present invention relates generally to wheels and attaches it on the axle and from the method that axle is pulled down, and relates in particular to a kind of plastics wheels pattern that is used on waste-skip, wheeled cooling vessel, lorry, wheeled toy, the barbecue etc.
Background technology
In recent years, the application of plastic wheel on various products has significant increase.The aspect that this plastic wheel has been used widely is that privately owned house-owner adopts it to handle their rubbish usually on wheeled refuse (or rubbish) car (or case) pattern.Usually these cars form by the plastics of injection moulding, blowing or rotational molding, and have the molding wheel of injection moulding or blowing, and these take turns the end that is installed in metal shaft by wheelboss part.Wheel hub is hammered onto the end of axle, keeps in position taking turns.Because the wheel hub of hammering needs special instrument or its destruction could must be pulled down it from axle, so change or when maintenance wheel or car, the dismounting of this plastic wheel is very difficult.Sometimes this process also can be damaged axle.Therefore, designed a kind of installation component of taking turns recently, but its snap-on is to axle, so that wheel is fixed on the axle.
Because the size of axle and wheel reduces, for example, when this wheels are used to wheeled toy, lorry, cooling vessel etc. when going up, are used for wheel and the materials amount of axle sleeve (wheel mounting sleeve) is installed will reduces, this axle sleeve stably is connected on the axle wheel.Since this installation axle sleeve usually adopts elastomeric transversely displaceable elasticity finger (finger) take turns lock or lock bolt on axle, thereby axle sleeve comprises that the zone of displaceable finger is tending towards some instability, and supports along it axially and the ability drop that moves or vibrate of lateral load.This stability reduces along with reducing of sleeve size, and interlock and remain to or the material of lock bolt on axle still less, opposing in the transversely displaceable elastomeric zone of elasticity move axially with the material of lateral load also still less, this elasticity finger is usually near the outer end of axle.
In the prior art, snap on system wheel installation component is too complicated, seem also not attractive and can not adapt to impact load and the vibration that often runs into well.They also are difficult for being applicable on less axle and the less wheeled products.And, the unexpected height of cost that the snap-on of prior art connects, its fault rate height too.
In U.S. Pat 486023,2978277,3907370,5215356,5222786,5277480,5603555,5716107,5902018 and 6099083 and disclosed European patent application EP 0180307 in can see the existing wheel of representative type installation component.
The U.S. Pat 486023 of Bermel has disclosed a kind of axle nut, and it is used for wheel is fixed to some by the axle construction of ladle cover (involved axle structure).The axle nut of another kind of maintenance wheel has been shown in U.S. Pat 6099083, and it also is designed to and cooperates the special axis that forms and be carved with notch to use jointly.
In the U.S. Pat 2978277 of Gaudry, adopt the two-piece type hub unit that wheel is fixed on axle head.Hub halves is forced together, to catch the dove tail shape cross-sectional plane of spindle nose and wheel simultaneously.This method partly goes up the pairing frictional engagement based on hub halves, but under the impact load and high vibration that waste-skip, cooling vessel and toy experience usually, interelement friction is fixing unreliable usually.In addition, the axle of also not wishing to use many wheel hubs He having expanding end, and such axle head relatively lateral load well supported.
The wheel installation component that the U.S. Pat 3907370 of Bard discloses adopts installs axle sleeve, and this axle sleeve is keyed in, with specifically created axle have the key end above slide.The axle sleeve spoke interior with taking turns groove cooperates and kept in position by spring cotter and packing ring.The annular cap places on spring cotter and the packing ring.This method needs axle key, a plurality of part, uses fixing and release opening pin and cap instrument and horizontal unsupported axle head.
People's such as Parker U.S. Pat 5716107 illustrates a kind of many hub units.Take turns in the installation component this, wheels are locked in the groove or annular notches of axial end with holding element.Wheel hub cover, is taken turns by snap-on to axle in wheel then by snap-on.This be carved with notch or the fluting the axle in waste-skip, be widely adopted, but in this case, this assembly needs many wheel hubs and special tool again, and to pull down in order taking turns, to need the inboard of tediously long operation ability trailing wheel to discharge elasticity maintenance ring-type finger from axle.At a kind of similar snap-on hub unit shown in the U.S. Pat 5215356.In U.S. Pat 5716107 and 5215356, the wheel anchor fitting is not the axle sleeve that extends through the wheel hole.
U.S. Pat 5222786,5277480, four patents that adopt sleeve assembly shown in 5603555 and 5902018, this sleeve assembly passes wheel with stacked relation (in telescoped relation) and is installed above axle.Device in the U.S. Pat 5222786 and 5603555 has axle sleeve, have on this axle sleeve at least one snap-on effect, axle engagement convex shoulder and at least one take turns the engagement convex shoulder, its axis engagement convex shoulder remains on axle sleeve on the axle releasedly, and wheel engagement convex shoulder remains on wheel on the axle sleeve.Yet, as will be seen, in these patents, take turns installation shaft grip assembly relative complex for these two kinds, and upward adopt many wheel hubs for wheel being fixed on axle.Therefore, the size of wheel and axle reduces, and it is difficult more that the use of these assemblies becomes.
In U.S. Pat 5277480 and 5902018, the holding element device of separation uses with axle sleeve, but the outer end of axle is not supported substantially, because safety and/or reason attractive in appearance must adopt wheel hub cover.
At last, in the open EP0180307 of European patent, at the interior collet that on cantilever end, is provided with of wheel, to catch the notch that is formed in the axle.In this assembly, there is not to adopt the axle sleeve that passes wheel.
Summary of the invention
Thereby, the purpose of this invention is to provide a kind of wheels and wheel is installed axle sleeve, the number of parts of this axle sleeve is minimum, and can be used to the wheel that plastic wheel is less especially relatively and be installed on the less relatively metal shaft that is carved with notch or fluting of diameter.
Another object of the present invention provides a kind of plastics wheels that are used for waste-skip, lorry, cooling vessel or other wheeled products, this assembly production economy, be easy to be installed on the axle, and lasting, stablize, have the ability to bear the obvious impact load, the direction finding that during normal use produce and move and vibrate.
Wheels of the present invention and wheel installation shaft cover have other purposes and advantageous characteristic feature, it can be listed in detail in accompanying drawing and following realization best mode of the present invention, thereby make it obviously as can be known.
The installation axle sleeve of taking turns of the present invention comprises the axle sleeve body, and this axle sleeve body is formed with required size, installs with the center gear bearing hole of passing wheel, and is formed with the axle sleeve hole of required size, thereby be stacked on the axle.Axle sleeve has at least one engagement convex shoulder and at least one takes turns the engagement convex shoulder, and its axis engagement convex shoulder remains on axle sleeve on the axle releasedly, and wheel engagement convex shoulder remains on wheel on the axle sleeve.In brief, the improvement of installation axle sleeve of the present invention is made up of the axle sleeve body, this axle sleeve body is formed with the end wall of a horizontal expansion, this end wall has and is formed on its in-to-in stable or brace groove or hole section, forms the size of this groove or hole section in order to the far-end of receiving axes and can and move axially and pivot shaft at its end opposing lateral load.
Also propose a kind of wheels, it comprises wheel, nestable installation axle sleeve and axle together.
Description of drawings
Fig. 1 is the partial top view that the waste-skip or the container of wheels constructed according to the invention are installed on it.
Fig. 2 is the Zoom Side cutaway view that wheels of the present invention and wheel are installed axle sleeve.
Fig. 3 is the reduced side view that Fig. 2 bottom bracket axle only is shown.
Fig. 4 is the end elevation on the plane of 4-4 line in Fig. 3.
Fig. 5 is the end elevation on the plane of 5-5 line in Fig. 3.
Fig. 6 is the end elevation of Fig. 3 bottom bracket axle end relative with end shown in Figure 5.
Fig. 7 is the backplan of Fig. 3 bottom bracket axle.
Fig. 8 be remove axle sleeve, wheel and wheel hold the local amplification end view in hole among Fig. 2.
Fig. 9 is a sectional view of taking turns the alternative that axle sleeve and axle are installed of the present invention, and this axle sleeve and axle are specially adapted to little wheels.
Figure 10 is the backplan of the axle sleeve among Fig. 9.
Figure 11 is the top view of the axle sleeve among Fig. 9.
Figure 12 is the end elevation of the axle sleeve shown in Figure 10.
Figure 13 is a sectional view of taking turns another alternative that axle sleeve is installed of the present invention.
Figure 14 is the backplan of the axle sleeve among Figure 12.
Figure 15 is a sectional view of taking turns another alternative that axle sleeve is installed of the present invention.
Figure 16 is the backplan of the axle sleeve among Figure 15.
Figure 17 be the axle sleeve 17-17 line in Figure 15 among Figure 15 the plane the end cutaway view.
The specific embodiment
The of the present invention wheel installed axle sleeve and wheels can be used in some wheeled equipment.A typical case and the application that is not limited thereto is adopts this structure in the wheeled waste-skip of general type shown in Figure 1 or the container.Therefore, waste-skip 21 comprises a pair of wheel 22 of axle on 23 that is installed in waste-skip body 29 bottoms.Can select to be provided with hinged cover 24, use handle 26 waste-skip can be tilted or overturning around wheel, like this, promote waste-skip so that carry rubbish between the position of can be for example picking up rubbish in the position and the garbage disposal plant of load garbage.
To take turns 22 by the common wheel installation axle sleeve of representing with Reference numeral 27 is fixed on the axle 23.In illustrated waste-skip, the body of waste-skip comprises wheel well (wheel well) or the sunk area 28 that receives wheel 22, and it plays protects wheel and part as beautifying the effect of structure.Yet many waste-skips do not comprise illustrated wheel well.
The less similar wheeled products of size generally comprises lorry, wheeled food or beverage cooler, barbecue, wheeled toy and little refuse container.Moreover the wheel that uses wheel installation axle sleeve will be used on this equipment is fixed to axle, but because wheel, axle and axle sleeve are very little, so along with the stability of assembly and the problem of durability have still less appearred in the Available Material that is used for element is linked together.
Proposed to be specially adapted to the wheel installation axle sleeve of major diameter axle in the applicant's the prior art patent application, the full content of above-mentioned application is quoted as a reference by the application.The application's sleeve assembly improves the prior art design of the wheeled product of minor diameter that is used to have small diameter shaft from the applicant, but should be appreciated that the application's design also can be advantageously used in bigger waste-skip.The improvement design that the embodiment of Fig. 1-8 illustrates the applicant is applied to the adaptability revision of waste-skip, and the embodiment of Fig. 9-17 is used in particular for little wheeled products.
Referring now to the improvement embodiment of axle sleeve of the present invention and wheels, shown in Fig. 2-8, can see that axle sleeve 127 comprises the inner 137 that is provided with circumferential rib 201,201 of this circumferential ribs are put in the annular groove 202 of taking turns the 139b of small diameter bore portion that holds hole 139.The diameter of rib 201 is greater than the 139b of small diameter bore portion, with the downward force fit hand-hole 139 of axle sleeve, in circumferential rib 201 flexibly buckles into groove 202.The axle sleeve rib that proposes among the embodiment of the applicant's prior art application and the same relative size in aperture also are applicable to the embodiment of Fig. 2 among the application-8.
Enter the 139b of small diameter bore portion downwards for the ease of circumferential rib 201, the body of axle sleeve 127 is preferably slotted once at least at inner 137 places.This can find out in Fig. 5 best, wherein is provided with two axially extended slits 151 and 152. Slit 151 and 152 can hold the inside elastic displacement of sleeve end 137, and this displacement equals the interference fit amount between circumferential rib 201 and the 139b of small diameter bore portion substantially. Slit 151 and 152 limits finger 147 betwixt, these finger 147 inside resilient movement are a certain amount of, when its natural elasticity with softer blow molded plastic wheel 122 combines, it will be allowed in the axle sleeve force fit hand-hole, be locked on the wheel in rib can buckle into groove 202 and with axle sleeve.For the ease of axle sleeve so is press fitted in the wheel, chamfering 203 is set on circumferential rib 201 preferably.
As best illustrating in Fig. 2, wheel hole 139 is radially stepped, has the 139a of large diameter hole portion that open to the outside 167 of wheel 122 and to wheel inboard 166 139b of small diameter bore portion that open.This identical radially inside ladder that in the embodiment of the applicant's prior art application, also shows axle sleeve and wheel.
The wheel that is used for waste-skip is blowing or injection-moulded plastic wheel normally, has the rib 165 that radially extends, this rib 165 towards the hole 139 center shaft 170 assemble.Because the inside stepped hole 139 from the outer or 139a of large diameter hole portion to the 139b of small diameter bore portion, wheels of the present invention will have higher intensity in the inboard 166 of taking turns and the inner 137 of axle sleeve.Its reason is axle 170 radial convergences (Fig. 8) of rib 165 towards the hole.Along with being the 139b of small diameter bore portion littler, rib 165 draws closer together at annular shaft carrier ring 150 places, and this annular shaft carrier ring 150 is around the 139b of small diameter bore portion.The axle that is inserted into axle sleeve hole 141 is tending towards applying greater than the power that is applied on the outside 167 on the inboard 166 of wheel.Compare with the annular shaft carrier ring 160 (Fig. 2 and 8) that diameter on the wheel outside 167 is bigger, the diameter that receives the hole of axle sleeve along with wheel reduces, and rib 165 is assembled towards bearing collar 150, so that around axle sleeve 127 pivot shaft carrier rings 150 and additional strength is provided.
In axle sleeve 127, the end wall 158 of axle sleeve is formed with optional tool passage 191, and it aligns with the extendible portion 183 of finger 146.What horizontal expansion strode across passage 191 is the epidermis 195 that rupture diaphragm maybe can pierce through.Film 195 is from hidden axle 123 visually, thereby reduced possible destruction.And passage 191 is preferably columniform, has enough little lateral dimensions, so that stop the corkscrew access passage of most of blade shapes.Perhaps, can use pointed tool such as scriber (scratch all) or ice pick to pierce through the epidermis 195 that film maybe can pierce through, and by finger 146 being upturned and it being moved.Alternatively, along with pointed tool is axially driven by the lug 155 on finger 146, the end of pointed tool will be meshed with the chamfering 134 of axle 123 ends.Along with pointed tool is further promoted axially, chamfering 134 will force the end of instrument upwards to abut against on the finger extendible portion 183, outside whereby mobile finger 146, the transverse notch 133 in lug 155 leaves axle.At this moment, wheel and axle sleeve outwards can be pulled out from axle, and wheel is removed.
Refer now to Fig. 8, can see, wheel 122 is formed with center gear bearing hole 139, and this center gear bearing hole 139 has stepped 139a of large diameter hole portion and the 139b of small diameter bore portion.Littler radially extending rib 201 can be used to axle sleeve is locked on the wheel, as mentioned above.
Wheels shown in the constructional drawing 2-8 are so that axle sleeve and wheel are linked together by key as one unit.Therefore, one of them in wheel bearing hole 139 and the axle sleeve 127 is formed with radially the key that protrudes, and is formed with the groove that radially protrudes in wheel bearing hole 139 and the axle sleeve 127 another.As shown in Figure 8, a pair of outside protrusion and axially extended bag connected in star 179,181 are set in the 139b of small diameter bore portion.These two grooves are spaced apart in the both sides of central area.Preferably form key by a pair of outward extending rib 177,178, this is shaped as required size to rib, thereby is inserted sliding in groove 181 and 179.This structure is pinned axle sleeve, so that it is with the wheel rotation.
As be shown in figures 2 and 3, the displaceable finger 146 of elasticity is moved down.Along with the axle that will have chamfering 134 before the notch 133 that buckles into axle at lug pushes in the axle sleeve 127, can side travel in order to allow lug or tooth 155, this motion needs.Yet under the dynamic load effect of axle, the cross travel of axle engagement finger can cause some horizontal and axial fugitiveness in axle/sleeve assembly.
Thereby in order to make the stabilizer shaft in the axle sleeve make it can under dynamic load effect, not move down finger 146, improved axle sleeve of the present invention and wheels are provided with stable axis groove 198 in the horizontal end wall 158 of axle sleeve, this groove is dimensioned, and is arranged on the far-end or the axle head on the outer end 199 of axle 123 with reception.Therefore, axle head 199 pass the axle the gap or length at axle sleeve 127 inner transverse pivot shafts, this axle sleeve 127 comprises finger 146.The axle head 199 of axle 123 is absorbed in groove or the bag 198, and axle can not move down finger 146 and do not allow that wheel 122 begins dynamically to wave or vibrate on axle.
Inner and the stable axis 123 relative with this axle sleeve need be a kind of axle that is formed with axle head or extendible portion 199 especially at axle sleeve 127, but the result is that all components is not vulnerable to the influence that fatigue, stress fracture and axle sleeve discharge or untie from the chance on the axle.In bigger axle, owing to have enough material, axle sleeves that axle 123 is basicly stable in the inside of axle sleeve, so not absolute demand axle groove 198 and axle head 199.Yet,, be provided with and stablize groove and axle head has also further strengthened their stability even concerning bigger axle.
Shown in Fig. 2-8, the diameter of axle head 199 is less than the diameter of axle remainder, but is appreciated that the diameter of groove 198 and axle head 199 can be identical with the diameter of axle 123 remainders, can be at the end of axle head 199 chamfering for being easy to install.If the diameter of axle head 199 is identical with axle 123 diameter, then this axle head can be restricted to notch 133 axle head far away a part and be received in the groove 198.
At sleeve assembly shown in Fig. 9-17, it is specially adapted to less wheeled products, as lorry, cooling vessel and toy.The element of these axle sleeves is identical with said elements among Fig. 1-8, and the respective drawings mark that is used for each embodiment increases by 100 respectively.
Axle sleeve 227 among Fig. 9-12 is designed to wheel, and this is taken turns has stepped wheel bearing hole 239a and 239b, and this wheel bearing hole 239b is provided with annular step scalariform groove 302, and the wheels among this and Fig. 2-8 are similar.Axle sleeve 227 quilts are force fit hand- hole 239a, 239b from right to left, in annular shaft jacket rib 301 buckles into groove 302.Slit 251 and 252 (Figure 11) limits elasticity finger 247, and this finger can be moved in small diameter bore 239b inwards, thereby permission rib 301 moves inwards along the hole and buckles in the annular groove, thereby axle sleeve is fixed on the wheel.And the displaceable finger 246 of second elasticity is provided with a lug or tooth 255, can outside mobile lug or tooth 255, thereby allow in axle sleeve hole 241 inside impeller-hub 232 from left to right, shaft relief 233 up to annular contacts with lug 255, this moment, conical surface 291 can outwards promote finger 246, then, lug 255 inwardly buckles in the notch 233, thereby axle sleeve is fixed on the axle.As seen from Figure 10, the displaceable finger 246 of elasticity can be limited by two slits 214 and 216, and therefore, finger 246 can be stretched out from about midpoint cantilever of axle sleeve, and extends axially the horizontal end wall 258 that approaches to axle sleeve, but is not in contact with it.
For the axle in the stable axis trepanning 241, axle sleeve 227 comprises that in end wall 258 stable axis receives groove or axle bearing hole section 298.Groove or hole section 298 are used for the axle head 299 of receiving axes 223.Therefore, under the action of lateral load of axle 223, the far-end of axle 223 can be caught by groove or hole section 298, and supported prevention shifted laterally.In the less axle sleeve 227 of wall thickness, (compare), aspect the bulk strength and durability that obtain assembly, importantly make the end of the axle 223 in the sleeve end wall 258 stable with the wall thickness of large shaft sleeve 127.
In a preferred form, axle sleeve 227 includes conical suface 290, the conical surface 291 on this conical suface pairing ground receiving axes 223, this conical surface 291 at axle head 299 with than major diameter or nominal diameter axle 223 between.Therefore, as can be seen, the diameter of axle 223 on annular notches 233 distal sides inwardly is tapered to the diameter of less axle head.As mentioned above, this is not absolute requirement, but it has reduced groove or bag 298 required sizes so that stabilizer shaft, and the intensity of end wall 258 is still kept.
The most preferably and in order to make axle 223 the vibration in axle sleeve hole 241 and the axle sleeve hole section and to wave minimize, axle and axle sleeve all are shaped as required size, so axle can be slidably received in the axle sleeve hole 241, axle head 299 can be slidably received in groove or the axis hole section 298.Therefore, the axle by the axle sleeve cross-tie on the both sides of the displaceable finger 246 of side direction.
With with Fig. 9-12 in axle sleeve 227 similar modes construct axle sleeve 327 among Figure 13 and Figure 14.Yet in axle sleeve 327, elastic axis engagement finger 346 has replaced the elastic axis engagement finger 246 in the axle sleeve 227.Finger 346 extends axially along axle sleeve once more, and comprises lug 355, but stretch out from sleeve end wall 358 cantilevers the finger.The axle (in Fig. 9 axle 223 identical) that axle sleeve 327 was designed to and was carved with notch uses, and axle head 299 is slidably received in the stable groove 398 of end wall 358 of axle sleeve 327.
Improvement axle sleeve 427 among Figure 15-17 shows the axle engagement finger of the another kind of form that combines with stable groove or hole section.So, axle sleeve 427 comprises finger 446, and stretch out along circumferential cantilever near end wall 458 this finger, as finding out better among Figure 16 and Figure 17.Finger 446 also comprises lug 455, and it is put in the stabilization pocket 498 along with 299 of axle heads and buckles in the groove 233.
In improved axle sleeve 427, single axially extended rib 477 has replaced a pair of rib, the rib 177 and 178 as shown in Fig. 3 and 4, the turning key connecting bushing that adopts this that rib is taken turns relatively.
Also installation axle key of the present invention can be connected on the axle.This just impels axle, axle sleeve and wheel to rotate together as one unit.
Moreover axle sleeve 427 is designed to be carved with the axle of notch, and this axle has an axle head, and as the axle 223 among Fig. 9, this axle head can be slidably received in the stable groove 498 of end wall 458.Groove 498 is provided at the lateral support surfaces of the far-end upper support axle of axle in the area of the displaceable axle engagement of side direction finger 446.
Aforementioned specific embodiment of the present invention has illustrated purpose of the present invention.It is not exhaustive or be restricted to the precise forms of disclosure the present invention, and can make many tangible optimizations and change according to above-mentioned instruction.For best interpretations illustrates principle of the present invention and practical application thereof, select and narrated some embodiment, therefore make those skilled in the art utilize the present invention and various improved embodiment best, these improve embodiment and are suitable for the special use considered.Intention is: when according to as doctrine of equivalents and part replacement accept that legal principle is read and when explaining, protection scope of the present invention is defined by the appended claims.

Claims (18)

1, a kind of installation axle sleeve of taking turns comprises:
The axle sleeve body, it has the inner and outer end, and it forms and its size forms the wheel bearing hole that is used to pass wheel and installs, and described axle sleeve body also has size and forms with stacked relation and be installed in the axle sleeve hole that extends axially on the axle;
Described axle sleeve body has at least one engagement convex shoulder thereon and at least one takes turns the engagement convex shoulder, and wherein said axle engagement convex shoulder is used for described axle sleeve is remained on axle, and the described engagement convex shoulder of taking turns is used for wheel is remained on described axle sleeve; And
Described axle sleeve body comprises the end wall of horizontal expansion, and described axle sleeve hole extends axially in the described end wall, thereby axle bearing hole section is provided in described end wall, and this axle bearing hole section is used for by the lateral load on the described axle sleeve pivot shaft.
2, the installation axle sleeve of taking turns as claimed in claim 1 is characterized in that, described axle bearing hole section only local extension is gone into described end wall, so that the closed end that extends through axle head to be provided.
3, the installation axle sleeve of taking turns as claimed in claim 1 is characterized in that, the diameter of described axle bearing hole section is less than the diameter of described axle sleeve hole remainder.
4, the installation axle sleeve of taking turns as claimed in claim 3 is characterized in that, an end of the described remainder of described axle sleeve hole is tapered to the less described axle bearing hole section of diameter with assembling.
5, the installation axle sleeve of taking turns as claimed in claim 1 is characterized in that,
Described axle sleeve hole and axle sliding engaged;
Described axle engagement convex shoulder is arranged on the outside displaceable finger of elasticity, and described finger is near described end wall setting; With
One end sliding engaged of described axle bearing hole section in described end wall and axle.
6, the installation axle sleeve of taking turns as claimed in claim 5 is characterized in that, the outside displaceable finger of described elasticity cantilever stretches out, thus along described axle sleeve body shaft to the position that extends near described end wall.
7, the installation axle sleeve of taking turns as claimed in claim 6 is characterized in that, stretch out from described end wall cantilever the outside displaceable finger of described elasticity.
8, the installation axle sleeve of taking turns as claimed in claim 6 is characterized in that, stretch out from the intermediate length cantilever near described axle sleeve body the outside displaceable finger of described elasticity, and terminate in the position that does not arrive described end wall.
9, the installation axle sleeve of taking turns as claimed in claim 5 is characterized in that, stretch out from the described axle sleeve body cantilever near described end wall the outside displaceable finger of described elasticity.
10, a kind of wheels comprise:
Axle, it has the notch of circumferential extension, and this notch is near the outer end of described axle and within this outer end;
Wheel, it has center gear bearing hole, and extend through its outside from described inboard of taking turns in this hole;
Wheel is installed axle sleeve, and it has the axle sleeve body that is formed with axle sleeve hole, and this axle sleeve hole size forms and is installed to slidably on the described axle; Described axle sleeve body has the outer dia and the slip that form for described wheel bearing hole and is inserted in the described wheel bearing hole; Also be formed with at least one engagement convex shoulder and take turns the engagement convex shoulder with at least one on described axle sleeve body, described axle engagement convex shoulder is used for described axle sleeve is remained on described axle, and the described engagement convex shoulder of taking turns is used for described the wheel remained on described axle sleeve; With
Described axle sleeve body also comprises the end wall of a horizontal expansion, and the stabilizer shaft groove in the described end wall aligns with described axle sleeve hole and receives described described outer end, and the size of described stabilizer shaft groove forms the lateral load that supports on the described axle.
11, wheels as claimed in claim 10 is characterized in that, described axle has axle head at place, described outer end, and its diameter is less than the diameter of described axle in the both sides of described notch, and described axle head is slidably received in the described stabilizer shaft groove of described end wall.
12, wheels as claimed in claim 11 is characterized in that, described axle from the diameter near described notch be tapered to with assembling described axle head than minor diameter.
13, wheels as claimed in claim 12 is characterized in that, described axle sleeve body is assembled the ground convergent, cooperates with the convergence tapered portion with described axle.
14, wheels as claimed in claim 10 is characterized in that,
Described axle sleeve hole and axle sliding engaged;
Described axle engagement convex shoulder is arranged on the outside displaceable finger of elasticity, and described finger is near described end wall setting; With
The described outer end sliding engaged of described stabilizer shaft groove in described end wall and described axle.
15, wheels as claimed in claim 14 is characterized in that, the outside displaceable finger of described elasticity cantilever stretches out, with along described axle sleeve body shaft to the position that extends near described end wall.
16, wheels as claimed in claim 15 is characterized in that, stretch out from described end wall cantilever the outside displaceable finger of described elasticity.
17, wheels as claimed in claim 15 is characterized in that, stretch out from the intermediate length cantilever near described axle sleeve body the outside displaceable finger of described elasticity, and terminate in the position that does not arrive described end wall.
18, wheels as claimed in claim 14 is characterized in that, stretch out from the described axle sleeve body cantilever near described end wall the outside displaceable finger of described elasticity.
CN03805079A 2002-01-09 2003-01-08 Plastic wheel assembly and mounting sleeve with stabilizing recess Expired - Fee Related CN100589996C (en)

Applications Claiming Priority (2)

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US10/044,621 2002-01-09
US10/044,621 US6637835B2 (en) 2000-02-18 2002-01-09 Plastic wheel assembly and mounting sleeve with stabilizing recess

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CN1638979A CN1638979A (en) 2005-07-13
CN100589996C true CN100589996C (en) 2010-02-17

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CN (1) CN100589996C (en)
AU (1) AU2003207492B2 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8590984B2 (en) * 2012-02-07 2013-11-26 Geo Plastics Wheel and hub assemblies removable without tools
US9290048B2 (en) 2012-05-25 2016-03-22 IPL, Inc Wheel built-in locking system and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215356A (en) * 1992-10-20 1993-06-01 Lin Kuo Liang Wheel assembly for a baby carriage
US5277480A (en) * 1992-12-28 1994-01-11 Sunshon Molding Co., Ltd. Wheel unit for a baby carriage
US5884982A (en) * 1997-01-09 1999-03-23 Z.A.G. Industries Wheel assembly
US6280001B1 (en) * 1999-03-05 2001-08-28 Cascade Engineering, Inc. Waste container and wheel assembly with pultruded axle
US6299258B1 (en) * 1999-08-26 2001-10-09 21St Century Plastics Corporation Composite axle for containers and the like
FR2808243B1 (en) * 2000-04-27 2002-08-16 Gourlin Participation Sa NOSE WHEEL MADE BY PRESSURE MOLDING IN RECYCLABLE PLASTIC MATERIAL
US6409283B1 (en) * 2001-03-02 2002-06-25 Yung-Shun Hsieh Wheel assembly for a truck-attached carriage

Also Published As

Publication number Publication date
AU2003207492A1 (en) 2003-07-30
CA2472600A1 (en) 2003-07-24
EP1463642A4 (en) 2007-05-30
MXPA04006557A (en) 2004-11-10
CA2472600C (en) 2010-10-05
AU2003207492B2 (en) 2007-06-14
EP1463642A2 (en) 2004-10-06
CN1638979A (en) 2005-07-13

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