CN2422159Y - Castor with hollow hub - Google Patents
Castor with hollow hub Download PDFInfo
- Publication number
- CN2422159Y CN2422159Y CN 00231758 CN00231758U CN2422159Y CN 2422159 Y CN2422159 Y CN 2422159Y CN 00231758 CN00231758 CN 00231758 CN 00231758 U CN00231758 U CN 00231758U CN 2422159 Y CN2422159 Y CN 2422159Y
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- Prior art keywords
- wheel hub
- hub
- hollow
- tire
- right half
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Abstract
The utility model relates to a castor with a hollow hub, which comprises a tire (1), a hub (2) and a bearing mounting hole (3). The utility model is characterized in that the hub (2) is composed of a left half hub (2-1) and a right half (2-2); the tire (1) is in injection moulding on the hub (2) combined of two halves to form a whole. Because the wall thickness of two half hubs is homogeneous, the utility model thoroughly solves the problems that in the process of injection moulding, internal parts are easy to generate shrinkage cavities, looseness, and uneven internal stress; because of being provided with caulking grooves which prevent a tyre from falling off, the utility model thoroughly solves the problem that a tyre is easy to degum when an ordinary castor is used for a period of time. The utility model has the advantages of raw material saving, process period saving, low cost, high strength, long service life, etc.
Description
The utility model relates to the plastics castor, particularly hollow wheel hub caster wheel.
The wheel hub of existing castor all is solid, and its shortcoming is Heavy Weight, expense material, and the structural walls thickness ununiformity is even, easy-formation not, and cause internal shrinkage and loose easily, and producing internal stress, intensity is bad.In addition, existing castor is short service life, comes unstuck easily, though its tire and wheel hub are the injection moulding all-in-one-pieces, can produce after use a period of time and separate.
The purpose of this utility model promptly is to spare at the existing Heavy Weight of existing castor, wheel hub wall thickness ununiformity, be easy to produce shrinkage cavity, loose and internal stress, and service life is short, the problem of aspect such as come unstuck easily, and provide a kind of weight lighter, handsome in appearance, wall thickness is even, long service life can not produce the hollow wheel hub caster wheel that is combined by left and right sides hub halves of degumming phenomenon.
By retrieval, US3063488 is arranged, US3020091, US3771843, PCT81/02868 and CN2200554Y etc. also have the hollow wheel hub that is combined by hub halves, but wherein preceding four all is the wheel hub that airtyred automobile or motor bike are installed, their tire can be dismantled and reinstall, and tire of the present utility model is to be injection molded into a single-piece with wheel hub, so keystone configuration is different fully, and their purpose is also different with the utility model, with US3063488 is example, its purpose is in order to unload tire down from wheel hub soon, so in two wheel hub, be convenient to dismounting, and cancelled the air-inflating tube of the inner tube of a tyre, make and form air chamber between the hub halves, being provided with gas on air chamber chews, so that directly in air chamber, inflate, by the pressure air in the air chamber to inflation of tire, therefore the joint portion between the hub halves is very complicated, be provided with many sealing arrangements, the wall thickness of wheel hub is very inhomogeneous, and weight does not only alleviate, and reverse side is heavy more a lot of than general automobiles wheel hub.US3020091 is the wheel that is used for juvenile motor vehicle or microminiature automobile, also be that installation is airtyred, its purpose is to make the both sides of tire that a very wide white tyre bead be arranged, so that having been seen, the people thinks it is very expensive very thick tire, in fact tire is very thin, be the wheel of very economical, and take turns in vain that the limit is also fine to be seen, very cleaning.The many structural feature designed for above-mentioned purpose is different fully with the utility model.Other is the wheel that is used for motor bike as PCT81/02868, and also sufficient pneumatic-tyred though its wheel hub is also formed its boring part shape triangular in shape by two halves, and is full of foam, also is equipped with brake equipment on hub halves.Having only CN2200554Y is a kind of wheel of transport trolleys, its wheel hub also is made up of two halves, but its purpose is to be bolted together in two wheel hub, can clamp the tire of outer ring well, so that can change after the wearing and tearing, its tire and wheel hub are not the injection moulding all-in-one-piece, and the wall thickness of wheel hub is also inhomogeneous.
Though the wheel hub of above-mentioned various wheels also is made up of two halves in a word, intermediate hollow, because its goal of the invention difference, so its architectural feature is different fully with the utility model.
The purpose of this utility model is achieved through the following technical solutions:
A kind of hollow wheel hub caster wheel, mainly form by tire (1), wheel hub (2) and bearing mounting hole (3), wheel hub (2) is combined by a left side half wheel hub (2-1) and right half wheel hub (2-2), and the centre is hollow, and tire (1) is injection-moulded in two semi-synthetic wheel hubs (2) and goes up integral body of formation.The wall thickness of a left side half wheel hub (2-1) and right half wheel hub (2-2) is very even, their spoke part (2-11), (2-21), the thickness of rim section (2-12), (2-22) and bearing installation bore portion (2-13), (2-23) is a, and the proportionate relationship of the concrete size of a and the external diameter of whole wheel is a=0.03～0.04D.The spoke part of a left side half wheel hub (2-1) and right half wheel hub (2-2) is a concave shaped, forms a kind of hollow spill castor.The spoke part of a left side half wheel hub (2-1) and right half wheel hub (2-2) can be a spirogyrate also, forms a kind of hollow convex castor.The external diameter of the bearing hole part of a left side half wheel hub (2-1) is with identical with the bearing hole internal diameter partly of right half wheel hub (2-2), and the two is linked in together, forms a complete bearing mounting hole (3).The rim section of a left side half wheel hub (2-1) and right half wheel hub (2-2) also has the caulking groove (2-14) that prevents tire and come off and (2-24).
The utlity model has following advantage and effect:
1. combine by a left side half wheel hub and right half wheel hub owing to wheel hub, the centre is hollow, can save raw MAT'L 1/3, and the H font that become by I-shape of its section, increased section factor, improve strength and stiffness, used and detect under situation about saving material in a large number, can reach the same load-bearing capacity of solid wheel hub, intensity is good, long service life has also been saved the machine-shaping cycle, has reduced productive costs.
2. owing to be provided with caulking groove or the through hole that prevents that the injection moulding tire breaks away from wheel hub, the injection moulding tire is engaged on the wheel hub securely, the tire that has therefore thoroughly solved existing solid wheel hub is using a period of time that the quality problems of degumming phenomenon just take place.
3. because the wall thickness of left half wheel hub and right half wheel hub is very even, can not produce the problem of internal shrinkage and unbalanced stress during injection moulding.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the cutaway view of existing solid wheel hub caster wheel
Fig. 2 a is the cutaway view of the utility model embodiment one hollow wheel hub caster wheel
Fig. 2 b is the cutaway view of left half wheel hub
Fig. 2 c is the cutaway view of right half wheel hub
Fig. 2 d is the constructional drawing after hub halves is synthesized
Fig. 2 e is the scheme drawing that has the caulking groove of tire anticreep on left half wheel hub
Fig. 2 f is the cross one another scheme drawing of hub halves combination back caulking groove
Fig. 3 a is the cutaway view of a left side half wheel hub of embodiment two
Fig. 3 b is the cutaway view of the right side half wheel hub of embodiment two
Fig. 4 a is the cutaway view of embodiment three hollow wheel hub caster wheeles
Fig. 4 b is the front elevation of the wheel hub of embodiment three
Fig. 4 c is the cutaway view of the wheel hub of embodiment three
Fig. 4 d is the rear view (RV) of the wheel hub of embodiment three
Be described further below in conjunction with drawings and Examples:
Embodiment one: can be seen by Fig. 2 a～2d, the hollow wheel hub caster wheel of the utility model is the same with existing solid wheel hub (see figure 1), mainly form by tire 1, wheel hub 2 and bearing mounting hole 3, different wheel hub 2 of the present utility model is to be combined by a left side half wheel hub 2-1 and right half wheel hub 2-2, the spoke that can be seen left half wheel hub 2-1 and right half wheel hub 2-2 by Fig. 2 b～2d is concave shaped, two semi-synthetic after, the centre is hollow, tire 1 and two semi-synthetic wheel hubs 2 are injection molded into an integral body, become a kind of hollow spill castor.No matter by seeing among the figure is that left half wheel hub 2-1 or right half their wall thickness of wheel hub 2-2 are very uniform, spoke part 2-11 shown in the figure, 2-21, the thickness of rim section 2-12,2-22 and bearing installation bore portion 2-13,2-23 is a, the concrete size of a is determined a=0.03～0.04D according to the outer diameter D of whole wheel.The external diameter of the bearing installation bore portion of a left side half wheel hub 2-1 is identical with the internal diameter of the bearing hole mounting hole part of right half wheel hub 2-2, and the two is linked in and forms a complete bearing mounting hole 3 together.Two ends at bearing mounting hole 3 also have bearing edge guard 2-10 and 2-20, before hub halves is synthetic, in advance with bearing installation in bearing mounting hole.Bearing edge guard 2-10 and 2-20 not only can make bearing fixing, and can play sealing function, make dust and foul be difficult for entering, and this also is of the present utility model one big advantage.
Can see that by Fig. 2 e and 2f the rim section of the half wheel hub 2-1 on a left side has the caulking groove 2-14 that prevents that tire from throwing off, the rim section of half wheel hub 2-2 also has the caulking groove 2-24 that prevents that tire from throwing off on the right side, the position criss-cross of the two, behind the injection moulding tire because the effect of caulking groove 2-14 and 2-24, tire is stung inflexibly on wheel hub, thoroughly solved the common castor tire problem of throwing off in use for some time from wheel hub.Simultaneously hub halves is combined securely.
Embodiment two: shown in Fig. 3 a and Fig. 3 b, embodiment two is that with the difference of embodiment one spoke part of left half wheel hub 2-1 and right half wheel hub 2-2 is spirogyrate, promptly forms a kind of hollow convex castor (also can be described as a kind of hollow completely takes turns) behind the injection moulding tire.Other structure of embodiment two is identical with embodiment one, and the wall thickness of the each several part of hub halves also has evenly, and thickness is a, the 0.03～0.04D that specifically is of a size of the whole wheel external diameter of a.
Embodiment three: the wheel hub that can be seen this hollow wheel hub caster wheel by Fig. 4 a～4d also is made up of a left side half wheel hub 2-1 and right half wheel hub 2-2, be that with the difference of embodiment one left half wheel hub 2-1 and right half wheel hub 2-2 rim section have through hole 2-15 and 2-25, bearing hole partly has caulking groove 2-16 and 2-26, spoke part has joint bar 2-17 and 2-27 and caulking groove 2-18 and 2-28, shown in Fig. 4 a, form a hollow wheel hub caster wheel of full closed behind the injection moulding tire.
Claims (9)
1. hollow wheel hub caster wheel, mainly form by tire (1), wheel hub (2) and bearing mounting hole (3), it is characterized in that: wheel hub (2) is combined by a left side half wheel hub (2-1) and right half wheel hub (2-2), the centre is hollow, and tire (1) is injection-moulded in two semi-synthetic wheel hubs (2) and goes up integral body of formation.
2. hollow wheel hub caster wheel according to claim 1, it is characterized in that: the wall thickness of left half wheel hub (2-1) and right half wheel hub (2-2) is very even, their spoke part (2-11), (2-21), the thickness of rim section (2-12), (2-22) and bearing installation bore portion (2-13), (2-23) is a, and the proportionate relationship of the concrete size of a and the external diameter of whole wheel is a=0.03～0.04D.
3. hollow wheel hub caster wheel according to claim 1 is characterized in that: the spoke part of left half wheel hub (2-1) and right half wheel hub (2-2) is concave shaped.
4. hollow wheel hub caster wheel according to claim 1 is characterized in that: the spoke part of left half wheel hub (2-1) and right half wheel hub (2-2) is spirogyrate.
5. hollow wheel hub caster wheel according to claim 1, it is characterized in that: the external diameter of the bearing hole part of left half wheel hub (2-1) is identical with the internal diameter of the bearing hole part of right half wheel hub (2-2), the two is linked in together, forms a complete bearing mounting hole (3).
6. hollow wheel hub caster wheel according to claim 1 is characterized in that: the rim section of left half wheel hub (2-1) and right half wheel hub (2-2) has the caulking groove (2-14) that prevents tire and come off and (2-24).
7. hollow wheel hub caster wheel according to claim 1 is characterized in that: the rim section of left half wheel hub (2-1) and right half wheel hub (2-2) has through hole (2-15) and (2-25) respectively.
8. hollow wheel hub caster wheel according to claim 1, it is characterized in that: the bearing hole of left half wheel hub (2-1) and right half wheel hub (2-2) part has caulking groove (2-16) and (2-26) respectively, and spoke part has joint bar (2-17) and (2-27) and caulking groove (2-18) and (2-28) respectively.
9. hollow wheel hub caster wheel according to claim 1 is characterized in that: also have bearing edge guard (2-10) and (2-20) at the two ends of bearing mounting hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231758 CN2422159Y (en) | 2000-03-28 | 2000-03-28 | Castor with hollow hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231758 CN2422159Y (en) | 2000-03-28 | 2000-03-28 | Castor with hollow hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2422159Y true CN2422159Y (en) | 2001-03-07 |
Family
ID=33594580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00231758 Expired - Fee Related CN2422159Y (en) | 2000-03-28 | 2000-03-28 | Castor with hollow hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2422159Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159015A (en) * | 2011-12-14 | 2013-06-19 | 姚本林 | Transmission wheel and manufacturing method thereof |
| CN104129226A (en) * | 2013-05-01 | 2014-11-05 | 康贝株式会社 | Wheels for baby carriage, and baby carriage |
| CN107379883A (en) * | 2017-07-07 | 2017-11-24 | 福建星辉婴童用品有限公司 | A kind of perambulator bag note wheel and preparation method |
| CN109177657A (en) * | 2018-10-16 | 2019-01-11 | 广州科济化学材料有限公司 | A kind of casting type polyurethane material non-inflatable tyre |
| CN111761784A (en) * | 2020-06-29 | 2020-10-13 | 宁波秀禾科技有限公司 | Full-plastic caster and injection molding process thereof |
-
2000
- 2000-03-28 CN CN 00231758 patent/CN2422159Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159015A (en) * | 2011-12-14 | 2013-06-19 | 姚本林 | Transmission wheel and manufacturing method thereof |
| CN104129226A (en) * | 2013-05-01 | 2014-11-05 | 康贝株式会社 | Wheels for baby carriage, and baby carriage |
| CN104129226B (en) * | 2013-05-01 | 2018-01-19 | 康贝株式会社 | Infant car wheel and perambulator |
| CN107379883A (en) * | 2017-07-07 | 2017-11-24 | 福建星辉婴童用品有限公司 | A kind of perambulator bag note wheel and preparation method |
| CN107379883B (en) * | 2017-07-07 | 2023-08-01 | 福建星辉玩具有限公司 | Bassinet package injection wheel and manufacturing method |
| CN109177657A (en) * | 2018-10-16 | 2019-01-11 | 广州科济化学材料有限公司 | A kind of casting type polyurethane material non-inflatable tyre |
| CN111761784A (en) * | 2020-06-29 | 2020-10-13 | 宁波秀禾科技有限公司 | Full-plastic caster and injection molding process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |