CN203172182U - A ribbon stand preventing reverse rotation - Google Patents
A ribbon stand preventing reverse rotation Download PDFInfo
- Publication number
- CN203172182U CN203172182U CN 201320140389 CN201320140389U CN203172182U CN 203172182 U CN203172182 U CN 203172182U CN 201320140389 CN201320140389 CN 201320140389 CN 201320140389 U CN201320140389 U CN 201320140389U CN 203172182 U CN203172182 U CN 203172182U
- Authority
- CN
- China
- Prior art keywords
- driven pulley
- support bracket
- housing
- driving wheel
- movable support
- 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 - Lifetime
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Abstract
Provided is a ribbon stand preventing reverse rotation. The ribbon stand comprises a housing and a gear set. The gear set is mounted in the housing to convey a ribbon and is composed of a driving wheel and a driven wheel which are meshed mutually. A fixed supporting hole and a movable supporting bracket are disposed in the housing. The pivot of the driving wheel is disposed in the fixed supporting hole and can be rotated in the fixed supporting hole. The driven wheel is disposed on the movable end of the movable supporting bracket and can be rotated under the driving of the driving wheel. The fixed end of the movable supporting bracket is connected with the housing through a mandrel and comprises a stopping mechanism. When being rotated forwardly, the driving wheel pushes the driven wheel and the movable supporting bracket to be rotated forwardly. Thus, the stopping mechanism is abutted against the housing in order to fix the movable supporting bracket. A blocking mechanism is also disposed in the housing. When being rotated backwardly, the driving wheel pushes the driven wheel and the movable supporting bracket to be rotated backwardly. Thus, the driven wheel approaches the blocking mechanism in order to enable the blocking mechanism to lock the driven wheel. As a result, the gear set is stopped from continuously operating in order to prevent the ribbon from being damaged by the reverse rotation of the gear set.
Description
Technical field
The utility model relates to the impact printer accessory, relates in particular to a kind of colour band frame with anti-reverse functions.
Background technology
In a kind of impact printer, the colour band that arranges in its colour band frame drives running by the engagement of driving wheel and driven pulley, when operate as normal, driving wheel rotates along direction initialization, and colour band operation is normal, but during the driving wheel counter-rotation, colour band can be brought between driving wheel and the driven pulley, cause gear stuck, and colour band is damaged, influence the operate as normal of printer.
For fear of driving wheel reversing, often adopts the measure of mark rotation direction on the colour band frame, but more under the situation such as Ribbon Change, the maloperation that driving wheel reverses can take place still the user, make troubles to the use of printer.Therefore, be necessary the structure of this colour band frame is improved, avoid the appearance of said circumstances.
The utility model content
The purpose of this utility model provides a kind of anti-down annesl tape holder, causes the colour band jam to prevent the travelling gear reversing.
The utility model is that the technical scheme that its technical problem of solution adopts is,
A kind of anti-down annesl tape holder, include housing and gear train, gear train is installed in the housing, the band of checking colors is carried, gear train is made up of intermeshing driving wheel and driven pulley, be provided with fixedly support hole and movable support bracket in the housing, the pivot of driving wheel is located at fixedly in the support hole, can fixedly rotate in the support hole, driven pulley is located at the movable end of movable support bracket, can rotate under the drive of driving wheel, the stiff end of movable support bracket is connected with housing by mandrel, and this stiff end has card and ends structure, when just changeing, driving wheel promotes driven pulley and the upset of movable support bracket forward, make card end structure and prop up housing, make the activity support bracket keep fixing, also be provided with barrier structure in the housing, promote driven pulley and movable support bracket reverse flip during the driving wheel counter-rotating, driven pulley makes barrier structure block driven pulley near barrier structure, stops gear train to continue operation;
The movable end of movable support bracket has claw, and driven pulley has cylinder-shaped shaft, and this rotating shaft is stretched in the claw, and the width of claw can swing rotating shaft greater than the diameter of rotating shaft in claw; In an embodiment of the present utility model, the inwall of claw is oval;
Stiff end one side of movable support bracket is acute angle, and opposite side is the obtuse angle, and mandrel is located at the obtuse angle side, and acute side forms card and ends structure, and acute side propped up inner walls when movable support bracket forward overturn, and prevention activity support bracket continues upset;
Barrier structure includes the rib that stretches out from housing bottom, and this rib is near the reverse flip side of driven pulley and movable support bracket, and its diameter snaps in the teeth groove of driven pulley when the driven pulley reverse flip less than the tooth pitch of driven pulley, and driven pulley is stopped operating;
One end of driving wheel is provided with swing handle, and this swing handle stretches out hull outside, is convenient to driving wheel is regulated.
Advantage of the present utility model is, this colour band frame is located at driven pulley on the movable support bracket, can end structure by card when the driving wheel forward rotation fixes, make gear train stable operation, and when the driving wheel backward rotation, by barrier structure driven pulley is stopped operating, avoid the gear train inverted running that colour band is caused damage.
Description of drawings
Fig. 1 is the structural representation of the anti-down annesl tape holder that the utility model proposes;
Fig. 2 is the amplification close up view of gear train.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
As Fig. 1, shown in Figure 2, the anti-down annesl tape holder that the utility model proposes includes housing 1 and gear train, gear train is installed in the housing 1, the band of checking colors is carried, gear train is made up of intermeshing driving wheel 2 and driven pulley 3, one end of driving wheel 2 is provided with swing handle 4, this swing handle 4 stretches out housing 1 outside, be convenient to driving wheel 2 is regulated, be provided with fixedly support hole (not shown) and movable support bracket 5 in the housing 1, the pivot of driving wheel 2 is located at fixedly in the support hole, can fixedly rotate in the support hole, driven pulley 3 is located at the movable end of movable support bracket 5, can under the drive of driving wheel 2, rotate, the stiff end of movable support bracket 5 is connected with housing 1 by mandrel 6, this stiff end has card and ends structure, when just changeing, driving wheel 2 promotes driven pulley 3 and the upset of movable support bracket 5 forwards, make card end structure and prop up housing 1, make activity support bracket 5 keep fixing, also be provided with barrier structure in the housing 1, promote driven pulley 3 and movable support bracket 5 reverse flip during driving wheel 2 counter-rotatings, driven pulley 3 is near barrier structure, make barrier structure block driven pulley 3, stop gear train to continue operation;
The movable end of movable support bracket 5 has claw 7, and driven pulley has cylinder-shaped shaft 8, and this rotating shaft 8 is stretched in the claw 7, and the width of claw 7 can swing rotating shaft 8 greater than the diameter of rotating shaft 8 in claw 7, and in the present embodiment, the inwall of claw 7 is oval; Stiff end one side of movable support bracket 5 is acute angle, and opposite side is the obtuse angle, and mandrel 6 is located at the obtuse angle side, and acute side forms card and ends structure, and acute side propped up housing 1 inwall when movable support bracket 5 forwards overturn, and prevention activity support bracket 5 continues upset; Barrier structure includes the rib 9 that stretches out from housing 1 bottom, this rib 9 is near the reverse flip side of driven pulley 3 and movable support bracket 5, its diameter is less than the tooth pitch of driven pulley 3, when driven pulley 3 reverse flip, snap in the teeth groove of driven pulley 3, driven pulley 3 is stopped operating, thereby make gear train out of service.
This colour band frame is located at driven pulley on the movable support bracket, can end structure by card when the driving wheel forward rotation fixes, make gear train stable operation, and when the driving wheel backward rotation, by barrier structure driven pulley is stopped operating, avoid the gear train inverted running that colour band is caused damage.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. anti-down annesl tape holder, include housing and gear train, gear train is installed in the housing, the band of checking colors is carried, it is characterized in that, gear train is made up of intermeshing driving wheel and driven pulley, be provided with fixedly support hole and movable support bracket in the housing, the pivot of driving wheel is located at fixedly in the support hole, can fixedly rotate in the support hole, driven pulley is located at the movable end of movable support bracket, can rotate under the drive of driving wheel, the stiff end of movable support bracket is connected with housing by mandrel, this stiff end has card and ends structure, promotes driven pulley and the upset of movable support bracket forward when driving wheel is just changeing, and makes card end structure and props up housing, make the activity support bracket keep fixing, also be provided with barrier structure in the housing, promote driven pulley and movable support bracket reverse flip during the driving wheel counter-rotating, driven pulley is near barrier structure, make barrier structure block driven pulley, stop gear train to continue operation.
2. a kind of anti-down annesl tape holder according to claim 1 is characterized in that the movable end of movable support bracket has claw, driven pulley has cylinder-shaped shaft, this rotating shaft is stretched in the claw, and the width of claw can swing rotating shaft greater than the diameter of rotating shaft in claw.
3. a kind of anti-down annesl tape holder according to claim 2 is characterized in that, the inwall of claw is oval.
4. a kind of anti-down annesl tape holder according to claim 1, it is characterized in that, stiff end one side of movable support bracket is acute angle, opposite side is the obtuse angle, mandrel is located at the obtuse angle side, acute side forms card and ends structure, and acute side propped up inner walls when movable support bracket forward overturn, and prevention activity support bracket continues upset.
5. a kind of anti-down annesl tape holder according to claim 1, it is characterized in that, barrier structure includes the rib that stretches out from housing bottom, this rib is near the reverse flip side of driven pulley and movable support bracket, its diameter is less than the tooth pitch of driven pulley, when the driven pulley reverse flip, snap in the teeth groove of driven pulley, driven pulley is stopped operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140389 CN203172182U (en) | 2013-03-25 | 2013-03-25 | A ribbon stand preventing reverse rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140389 CN203172182U (en) | 2013-03-25 | 2013-03-25 | A ribbon stand preventing reverse rotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172182U true CN203172182U (en) | 2013-09-04 |
Family
ID=49068930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320140389 Expired - Lifetime CN203172182U (en) | 2013-03-25 | 2013-03-25 | A ribbon stand preventing reverse rotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203172182U (en) |
-
2013
- 2013-03-25 CN CN 201320140389 patent/CN203172182U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314100 No. 111, Zhijiang Road, Weitang Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Jiashan Xianfeng office equipment Co.,Ltd. Address before: 314100 No. 111, Zhijiang Road, Weitang Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: Jiashan Xianfeng Office Equipment Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |