CN2231622Y - Ball castor - Google Patents
Ball castor Download PDFInfo
- Publication number
- CN2231622Y CN2231622Y CN 95236919 CN95236919U CN2231622Y CN 2231622 Y CN2231622 Y CN 2231622Y CN 95236919 CN95236919 CN 95236919 CN 95236919 U CN95236919 U CN 95236919U CN 2231622 Y CN2231622 Y CN 2231622Y
- Authority
- CN
- China
- Prior art keywords
- wheel
- cover
- lower port
- wheel cover
- case
- 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
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- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
The utility model discloses a movable wheel, which is installed on the bottom of a movable seat. The main structure of the utility model is that the movable wheel is composed of a wheel cover (10) which is provided with an installing rod (16), and wheel balls (20) which are arranged in the wheel cover (10). The integral type wheel cover (10) is provided with a cover casing (11), and the diameter of the lower port of the cover casing (11) whose inner surface (14) is provided with a plurality of convex beads (15) is smaller than the closing ring (13) of the diameter of the lower port of the cover casing (11) to prevent a seat from overturning and the movable wheel can not glide forwards. The utility model has the advantages of simple structure, low manufacturing cost, and reliable performance.
Description
The utility model relates to a kind of activity wheel that is installed on seat bottom.
In the prior art, because the movable wheel construction of movable seat relation, often because of seat overturning accident easily takes place by facing upward in health backward, the person that makes the seat rest that can't fully mind at rest.Therefore, improvement has movable wheel construction and overcomes its deficiency, is necessary.
The purpose of this utility model is, designs a kind of movable wheel, and it is loaded on seat following time, can prevent to turn over behind the seat and prevention activity wheel advancing slip, to overcome the prior art deficiency.
The technical solution of the utility model is, it by the top by the wheel cover of mounting rod with place this wheel cover wheel ball to form, its constructional feature is, described wheel cover is an one-piece construction, it has the semisphere case, this case inside face have a plurality of protruding pearls and described case lower port diameter position that the several piece washer of tiltedly stretching is downwards arranged outwardly and make the wheel ball place wheel cover to slide and its lower end diameter of not dropping out less than the ring washer of case lower port diameter.
Make below in conjunction with accompanying drawing and to further specify.
Description of drawings: Fig. 1 is the monnolithic case structure, and Fig. 2 is vertical sectional structure of device shown in Figure 1 and prevents toppling over schematic diagram that Fig. 3 is wheel cover face upwarding assumption diagram (having removed the wheel ball).In the drawings:
10-wheel cover, 12-washer,
11-case, 13-ring washer,
14-inside face, 16-mounting rod,
15-protruding pearl, 20-wheel ball.
By accompanying drawing as can be known, the utility model has the wheel cover (10) of mounting rod (16) by the top and places Wheel ball (20) in the described wheel cover (10) forms, and its design feature is that wheel cover (10) is whole knot Structure (one-body molded structure), this wheel cover (18) has hemispherical case (11), its inner surface (14) There are a plurality of protruding pearls (15) and case (11) lower port diameter position that the several piece of tiltedly stretching is arranged downwards outwardly (such as 3-5) washer (12) and its lower port diameter are less than the ring washer of case (11) lower port diameter (13), this ring washer (13) is in wheel ball (20) not drop out in the wheel cover (10) and can slide therein (rolling) is moving.
Design of the present utility model and operation principle are that case (11) and ring washer (13) structure make wheel Ball (20) freely rolls (cunning) and moves and do not drop out and make structure and installation to simplify in wheel cover (10); The institute Stating protruding ball (15) effect is, makes wheel ball (20) relatively protruding pearls (15) produce point by ground friction and connects Touch to roll, to reduce friction area and make wheel ball (20) produce under external force slip as ball; Referring to Fig. 2, its overturning-preventing principle is, because the structure of the washer (12) of wheel cover (10), for flying Dish shape and enlarged castor center of gravity area is when castor mounting rod (16) is subjected to the external force run-off the straight The time, washer (12) can withstand earlier ground makes castor not continue to tilt, and suitably designs washer (12) Can make mounting rod (16) inclination angle less than 10 degree and prevent wheel ball (20) to continue to depart from heavily to front slide More there is forewarning function heart position.
As known from the above, the utility model is a kind of improved castor, have simple in structure, The effect that dependable performance and preventing is turned over behind the seat and castor is advancing slip, thus overcome existing skill The art deficiency.
Embodiment: according to the utility model of accompanying drawing and said structure, the structure that wheel cover (10) is formed in one, wheel ball (20) adopting suitable pressure places wheel cover (10), and washer (12) is 3, and ring washer (13) lower port diameter is less than 0.6 centimetre of case (11) lower port diameter.
Claims (1)
1, a kind of movable wheel, by the wheel cover that mounting rod (16) are arranged (18) with place the wheel ball (20) of this wheel cover (10) to form, it is characterized in that, wheel cover (18) is an one-piece construction, it has semisphere case (11), and the several piece washer (12) that this case (11) inside face (14) has a plurality of protruding pearls (15) and described case (11) lower port diameter position to have tiltedly to stretch outwardly downwards and its lower port diameter are less than the ring washer (13) of case (11) lower port diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236919 CN2231622Y (en) | 1995-06-02 | 1995-06-02 | Ball castor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236919 CN2231622Y (en) | 1995-06-02 | 1995-06-02 | Ball castor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2231622Y true CN2231622Y (en) | 1996-07-24 |
Family
ID=33879784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95236919 Expired - Fee Related CN2231622Y (en) | 1995-06-02 | 1995-06-02 | Ball castor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2231622Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271570A (en) * | 2013-05-07 | 2013-09-04 | 昆山阿旺特家具有限公司 | Antiskid chair |
-
1995
- 1995-06-02 CN CN 95236919 patent/CN2231622Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271570A (en) * | 2013-05-07 | 2013-09-04 | 昆山阿旺特家具有限公司 | Antiskid chair |
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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 |