CN2780517Y - Improved of brake cster structure - Google Patents
Improved of brake cster structure Download PDFInfo
- Publication number
- CN2780517Y CN2780517Y CN 200520040556 CN200520040556U CN2780517Y CN 2780517 Y CN2780517 Y CN 2780517Y CN 200520040556 CN200520040556 CN 200520040556 CN 200520040556 U CN200520040556 U CN 200520040556U CN 2780517 Y CN2780517 Y CN 2780517Y
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- CN
- China
- Prior art keywords
- braking
- roller
- slipper
- flexure strip
- brake
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- 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 - Lifetime
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Abstract
The utility model relates to an improved braking caster structure which belongs to the technical field of machinery. The utility model relates to a caster with a braking function. The utility model solves the problems of the existing braking caster of small braking force, etc. The improved braking caster structure comprises a support frame, a top plate, a wheel shaft and a roller, wherein the top plate is hinged with the support frame; the wheel shaft is crossed through the support frame; the roller is sheathed at the middle part of the wheel shaft; a pin shaft is arranged in the support frame, and an elastic sheet is sheathed on the pin shaft; a braking plate is arranged in the support frame, and is hinged with the support frame; a resetting plate is arranged between the braking plate and the elastic sheet; the inner end of the resetting plate is hinged with the braking plate; the middle part of the resetting plate is hinged with the outer end of the elastic sheet; the outer end part of the elastic sheet is fixed with a brake sheet, and the brake sheet contacts the edge of the roller when the braking plate is pressed. When in operation, only the braking plate is trod, and then a caster can be braked; when the resetting plate is trod, the brake for the caster can be relieved. Thus, when in use, the operation is convenient. The utility model has the advantages of strong braking performance and small abrasion for the roller, and can prolong the service life of a product.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of castor, and particularly a kind of have a braking function caster wheel.
Background technology
Castor is a kind of common product, and it is installed on the bottom of utensils such as furniture, go-cart or lathe usually, and utensil can be moved flexibly and easily.Because utensil needs transfixion after moving and finishing, therefore be necessary on castor, to be provided with a brake equipment.
Existing castor brake equipment kind is a lot, " Side-braking caster wheel " that provides as Chinese patent 022603913, it comprises top board, support and a wheel shaft, at wheel shaft middle part socket roller, the end of the wheel shaft positioning screw cap that is being connected, at the same side of roller socket brake facing together and slipper, brake facing and slipper are provided with a top-pressure mechanism on the wheel shaft.This Side-braking caster wheel is to utilize top-pressure mechanism to make the brake facing roof pressure in the side of roller roller can not be rolled.
Though above-mentioned Side-braking caster wheel can make roller not roll, whole roller and support can rotate with respect to utensil, therefore can not make utensil transfixion under the castor braking mode.Simultaneously, for some large-scale utensils, because its weight is heavier, adopt to make the brake facing roof pressure less in the mode braking force of roller side, it is motionless often to be difficult to that roller is checked fully.
The brake castor of existing other structure also exists similar problem.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing brake castor, and a kind of structure improved brake castor is provided, and it is strong and can make castor motionless characteristics fully to make it have rational in infrastructure a, braking force.
The purpose of this utility model can realize by following technical proposal: this structure improved brake castor comprises support, top board, wheel shaft and roller, top board and support are hinged, wheel shaft crosses support, at wheel shaft middle part socket roller, it is characterized in that, be provided with a bearing pin in the described support, on bearing pin, be with a flexure strip, in support, be provided with a slipper, slipper and support are hinged, one block reset plate is set between slipper and flexure strip, the inner and the slipper of restoring board are hinged, the middle part of restoring board and the outer end of flexure strip are hinged, and a brake facing is being fixed in the outer end of flexure strip, and this brake facing contacts with the edge of roller when pressing slipper.
In this structure improved brake castor, it can be fixed on the bottom of furniture or utensil by top board.At the needs glancing impact, jam on slipper, by the restoring board transmission flexure strip is pressed down, make the brake facing of flexure strip outer end overlay on the edge of roller, thereby roller can't be rotated.When needing brake off, as long as jam on restoring board, impel slipper to reset, flexure strip also returns to original position, and brake facing has also just broken away from roller.
In above-mentioned structure improved brake castor, it is that material is made that described brake facing adopts rubber.Utilize this material can improve friction force between brake facing and the roller.In addition, the rolling wheel wear made for general employing plastics of elastomeric material is also less.
In above-mentioned structure improved brake castor, described restoring board is positioned at the downside of slipper, and separately stretch out the outer end of slipper and restoring board.By such structure, can jam on the outer end of slipper or restoring board in use very easily, to realize braking and the function that resets.
In above-mentioned structure improved brake castor, there is positioning seat the inboard of described support, and positioning seat and top board are connected, and has teeth on the surface of positioning seat, and the inner of flexure strip is provided with the braking fork, and the braking fork can embed in the above-mentioned teeth.By such cooperation, promptly in the teeth on the braking fork embedding positioning seat, support also can't be rotated together with roller.
In above-mentioned structure improved brake castor, a top flat that is connected as a single entity with flexure strip is arranged in the described flexure strip, top flat peaks on the support.When the state of not braking, make the braking fork of flexure strip break away from the teeth of positioning seat by top flat, brake facing also separates with roller, can normally use to guarantee this castor.Simultaneously, when this castor was become not braking mode by braking mode, after restoring board resetted slipper, flexure strip also can reset under the effect of top flat.
Compared with prior art, this structure improved brake castor only need jam on slipper and just can brake castor when operation, and jam on restoring board and can remove braking castor, so easy to operate when using.In addition, overlay in roller by brake facing, utilize the friction between them that roller can't be rotated, the braking effect ideal at glancing impact.Because the brake plate friction coefficient that elastomeric material is made is bigger, so braking ability wearing and tearing strong, pair roller are little, can prolong the service life of castor.
Description of drawings
Fig. 1 is the profile scheme drawing of this structure improved brake castor.
Fig. 2 is the structural representation of brake portion in this structure improved brake castor.
Fig. 3 is the structural representation of this structure improved brake castor brake portion when being in braking mode.
Fig. 4 is the schematic perspective view of flexure strip in this structure improved brake castor.
Fig. 5 is that A along Fig. 3 is to partial view.
Among the figure, 1, support; 2, top board; 3, wheel shaft; 4, roller; 5, flexure strip; 5a, top flat; 5b, braking fork; 6, brake facing; 7, slipper; 8, restoring board; 9, positioning seat; 9a, teeth; 10, bearing pin; 11, anchor shaft; 12, ball.
The specific embodiment
As depicted in figs. 1 and 2, this structure improved brake castor is installed in the bottom of furniture or utensil.It is made up of parts such as support 1, top board 2, wheel shaft 3, roller 4, flexure strip 5, brake facing 6, slipper 7, restoring board 8, positioning seat 9 and bearing pins 10.
As shown in Figures 2 and 3, the top of support 1 is hinged with a top board 2.When castor was installed, top board 2 was connected with the utensil bottom by screw.The inboard of support 1 is provided with positioning seat 9, and the surface of positioning seat 9 is provided with teeth 9a.Be equipped with ball 12 between support 1 and top board 2 and the positioning seat 9.Ball 12 plays the effect of reducing friction, and makes support 1 rotate more flexible with respect to top board 2 and positioning seat 9.
Anchor shaft 11 passes top board 2, support 1 and positioning seat 9 successively.The two ends of anchor shaft 11 and top board 2 and positioning seat 9 are fixed together, and the three is linked to be an integral body.
As shown in Figure 2, in this brake castor, its stop mechanism comprises flexure strip 5, slipper 7 and restoring board 8.The bearing pin 10 that is being connected in support 1, the middle part of flexure strip 5 is placed on this root bearing pin 10.As shown in Figure 4, there is a braking fork 5b the inner of flexure strip 5, and braking fork 5b can embed among the teeth 9a on positioning seat 9 surfaces, is used for limit bracket 1 and rotates.The outer end of flexure strip 5 brake facing 6 that is being connected, brake facing 6 can contact with the outer of roller 4.In the present embodiment, it is that material is made that brake facing 6 adopts rubber, and it is fixed on flexure strip 5 outer ends by bonding method.There is a top flat 5a at flexure strip 5 middle parts, and top flat 5a and flexure strip 5 are connected as a single entity, and it withstands on support 1 inboard.Top flat 5a plays reset response.
As shown in Figures 2 and 3, slipper 7 also is hinged with support 1.Between slipper 7 and flexure strip 5, restoring board 8 is arranged.The inner of restoring board 8 and slipper 7 are hinged, and its middle part is hinged with the outer end of flexure strip 5.In the present embodiment, hinged between them all realized by bearing pin 10.As shown in Figure 5, restoring board 8 is positioned at the downside of slipper 7, and separately stretch out the outer end of restoring board 8 and slipper 7.Like this, can be convenient to jam on slipper 7 or restoring board 8.
As shown in Figure 2, when jamming on slipper 7, by restoring board 8 transmissions, the outer end that drives flexure strip 5 is bent downwardly around bearing pin 10, and brake facing 6 is overlayed in the outer of roller 4.Utilize the friction force between brake facing 6 and the roller 4, roller 4 can't be rotated.Because flexure strip 5 is integral structures, after its outer end was bent downwardly, the elastic force that the braking of its inner fork 5b will overcome top flat 5a made progress, and braking fork 5b is embedded in the teeth 9a on positioning seat 9 surfaces.At this moment, whole brake castor just is in braking mode as shown in Figure 3.
When needing brake off, as long as jam on the outer end of restoring board 8.When restoring board 8 outer ends are pressed down because the outer of roller 4 is close in the hinged place, outer end of the middle part of restoring board 8 and flexure strip 5, so the inner of restoring board 8 be upturned, thereby the outer end of slipper 7 is upwards moved.After moving on the outer end of slipper 7, also can drive on the outer end of whole restoring board 8 and flexure strip 5 and move, make brake facing 6 break away from the outer of rollers 4 at last.At this moment, brake plate 7 is with regard to homing.The braking fork 5b of flexure strip 5 the inners also breaks away from teeth 9a under the effect of top flat 5a.Like this, brake castor just can freely rotate and move.
Claims (5)
1, a kind of structure improved brake castor, comprise support (1), top board (2), wheel shaft (3) and roller (4), top board (2) is hinged with support (1), wheel shaft (3) crosses support (1), at wheel shaft (3) middle part socket roller (4), it is characterized in that, be provided with a bearing pin (10) in the described support (1), on bearing pin (10), be with a flexure strip (5), in support (1), be provided with a slipper (7), slipper (7) is hinged with support (1), one block reset plate (8) is set between slipper (7) and flexure strip (5), and the inner of restoring board (8) and slipper (7) are hinged, and the outer end of the middle part of restoring board (8) and flexure strip (5) is hinged, a brake facing (6) is being fixed in the outer end of flexure strip (5), and this brake facing (6) contacts with the edge of roller (4) when pressing slipper (7).
2, structure improved brake castor according to claim 1 is characterized in that, it is that material is made that described brake facing (6) adopts rubber.
3, structure improved brake castor according to claim 1 and 2 is characterized in that, described restoring board (8) is positioned at the downside of slipper (7), and separately stretch out the outer end of slipper (7) and restoring board (8).
4, structure improved brake castor according to claim 3, it is characterized in that, there is positioning seat (9) inboard of described support (1), positioning seat (9) is connected with top board (2), have teeth (9a) on the surface of positioning seat (9), the inner of flexure strip (5) is provided with braking fork (5b), and braking fork (5b) can embed in the above-mentioned teeth (9a).
5, structure improved brake castor according to claim 4 is characterized in that, a top flat (5a) that is connected as a single entity with flexure strip (5) is arranged in the described flexure strip (5), and top flat (5a) peaks on the support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040556 CN2780517Y (en) | 2005-03-31 | 2005-03-31 | Improved of brake cster structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040556 CN2780517Y (en) | 2005-03-31 | 2005-03-31 | Improved of brake cster structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780517Y true CN2780517Y (en) | 2006-05-17 |
Family
ID=36761715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520040556 Expired - Lifetime CN2780517Y (en) | 2005-03-31 | 2005-03-31 | Improved of brake cster structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780517Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463809C (en) * | 2005-03-31 | 2009-02-25 | 胡坚兴 | Brake castor with improved structure |
| CN102717660A (en) * | 2012-06-14 | 2012-10-10 | 青岛富盛德塑胶有限公司 | Anti-static caster structure, anti-static polyurethane material for producing caster and production method |
| CN104589916A (en) * | 2015-01-21 | 2015-05-06 | 胡和萍 | Speed controllable universal wheel |
-
2005
- 2005-03-31 CN CN 200520040556 patent/CN2780517Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463809C (en) * | 2005-03-31 | 2009-02-25 | 胡坚兴 | Brake castor with improved structure |
| CN102717660A (en) * | 2012-06-14 | 2012-10-10 | 青岛富盛德塑胶有限公司 | Anti-static caster structure, anti-static polyurethane material for producing caster and production method |
| CN102717660B (en) * | 2012-06-14 | 2015-04-01 | 青岛富盛德塑胶有限公司 | Anti-static caster structure, anti-static polyurethane material for producing caster and production method |
| CN104589916A (en) * | 2015-01-21 | 2015-05-06 | 胡和萍 | Speed controllable universal wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090225 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |