CN204373529U - A kind of blind person's tape measure - Google Patents
A kind of blind person's tape measure Download PDFInfo
- Publication number
- CN204373529U CN204373529U CN201420850544.2U CN201420850544U CN204373529U CN 204373529 U CN204373529 U CN 204373529U CN 201420850544 U CN201420850544 U CN 201420850544U CN 204373529 U CN204373529 U CN 204373529U
- Authority
- CN
- China
- Prior art keywords
- chi bar
- shell
- opening
- tape measure
- chi
- 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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Abstract
The utility model discloses a kind of blind person's tape measure, include chi bar and the shell for accommodating chi bar, shell is provided with the opening for outwards extracting chi bar out, described chi bar include the scale area that formed by braille scale and be positioned at front end, scale area without scale area; Described shell also has on the path that described chi bar is outwards extracted out one for touching the reading opening of described chi bar, the length of wherein said chi bar between reading opening with described opening is equal with the described length without scale area, and the scale that the chi bar of reading opening shows is the length of actual measurement.Tape measure of the present utility model is easy to operate, is suitable for blind person and uses.
Description
Technical field
The utility model relates to a kind of ruler, particularly relates to a kind of blind person's tape measure.
Background technology
Ruler is conventional dimensional measuring instrument, and wherein tape measure widely uses especially in daily life due to convenient for collecting.But for the people of dysopia, owing to cannot see the scale on ruler, common ruler cannot use, this life being them and participation work bring very large inconvenience, for this reason, have and be reported in that tape measure engraves can some concavo-convex marks of reading for touch, such as, on chi bar, gap or outstanding round dot are set every a segment distance, then blind person carrys out reading by the quantity calculating gap or round dot, and intuitive and the convenience of this method acquisition data are all very poor.In addition, the structural design of the tape measure of this blind person is the same with ordinary tape measure, and operation by blind is got up very inconvenient, easily produces error, have impact on result of use.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art, provides a kind of blind person's tape measure.
The utility model solves the technical scheme that its technical matters adopts: a kind of blind person's tape measure, include chi bar and the shell for accommodating chi bar, shell is provided with the opening that chi bar is outwards extracted out, described chi bar include the scale area that formed by braille scale and be positioned at front end, scale area without scale area; Described shell also has on the path that described chi bar is outwards extracted out one for touching the reading opening of described chi bar, the length of wherein said chi bar between reading opening with described opening is equal with the described length without scale area.
Preferably, described chi bar front end is provided with the open outer side that is stuck in described shell and chi head for outwards extracting described chi bar out.
Preferably, described shell is outward extended with an extension in described opening side, and the end of this extension has a recess; The front end of described chi head has the protuberance of one and this recesses fit.
Preferably, described shell is loop configuration, and it is inner that described chi bar is set around described loop configuration.
Preferably, described shell is outward extended with a protuberance by excircle, and described reading opening is positioned at and is formed on the indent circular arc line segment of described protuberance; Described chi bar lead to described opening via described protuberance and the braille scale of its scale area towards described reading opening.
Preferably, described enclosure is also arranged with a clockwork spring, and described clockwork spring one end is fixed on the inner periphery of described shell, and the other end connects the rear end of described chi bar; Described chi bar is set around on described clockwork spring.
The beneficial effects of the utility model are:
1. shell is provided with reading opening, chi bar front end has that to export (i.e. shell upper shed) distance with reading opening and chi bar corresponding without scale area, the starting point that chi head aims at article to be measured only need be extracted out when user measures, pull chi bar to terminal, namely braille scale on the chi bar that reading opening touches is the length of actual measurement, it is more simple and clear compared with existing need carry out calculating, and at fixing reading opening reading, while capturing shell, finger touches reading without the need to moving to the chi bar of pull-out, easy to operate and avoid because the error that causes of operational factor,
2. shell adopts loop design, and conveniently capture, carry and storage, reading opening is positioned on the indent arcwall face of protuberance, is convenient to location during use, adds the convenience that blind person uses;
3. be provided with clockwork spring in tape measure, after being used to complete, chi bar can automatic drawing back enclosure under the action of the spring, and chi head is connected in and coordinates fixing, reasonable in design outside shell aperture and with extension, uses simple.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But a kind of blind person of the present utility model is not limited to embodiment with tape measure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model under non-working condition;
Fig. 2 is the utility model structural representation in a state of use;
Fig. 3 is schematic cross-section of the present utility model.
Embodiment
Embodiment, see Fig. 1 to Fig. 3, a kind of blind person's tape measure, includes chi bar 1 and the shell 2 for accommodating chi bar.Shell 2 is provided with the opening 21 that chi bar 1 is outwards extracted out.Chi bar 1 include be positioned at front end without scale area 11 and the scale area 12 that formed by braille scale.Shell 2 also has one for touching the reading opening 22 of chi bar 1 on the path that chi bar 1 is outwards extracted out, wherein the length of chi bar 1 between reading opening 22 with opening 21 is equal with the length without scale area 11, namely under non-working condition, the zero graduation on reading opening 22 corresponding chi bar 1 scale area 12.
Chi bar 1 front end be provided be stuck in shell 2 opening 21 outside and chi head 3 for outwards extracting chi bar 1 out.Shell 2 is outward extended with an extension 23 in the side of opening 21, and the end of extension has a recess 231, and the front end of chi head 3 has protuberance 31, and protuberance 31 matches with recess 231.The width of chi head 3 is greater than opening 21, coordinates relative fixing outside the opening 21 being stuck in shell under non-working condition with extension 23.
Shell 2 is loop configuration, and chi bar 1 is set around loop configuration inside.Shell 2 is outward extended with a protuberance 24 by excircle, and reading opening 22 is positioned on the indent circular arc line segment of formation protuberance 24, meets the natural radian of finger.Chi bar 1 lead to opening 21 via protuberance 24 and the braille scale of its scale area 12 towards reading opening 22.During use, chi head 3 pulls out and aims at the starting point of article to be measured, pull chi bar 1 to the terminal of article to be measured, touch reading opening 22, owing to cancelling each other without the length of scale area 11 and the distance between reading opening 22 and opening 21, on reading opening 22, namely the braille scale of display is the length of actual measurement.
Shell 2 inside is also arranged with a clockwork spring 4, and clockwork spring 4 one end is fixed on the inner periphery of shell 2, and the other end connects the rear end of chi bar 1.Chi bar 1 is set around on clockwork spring 4, and when chi bar 1 is outwards extracted out, inner pitch of the laps tightens up compression clockwork spring 4, and after relieving chi bar 1, due to the dilating effect of clockwork spring 4, the inner and chi head 3 of chi bar 1 automatic retraction shell 2 abuts with extension 23 and coordinates.
Tape measure of the present utility model aims at blind person and uses design, and ring-shaped shell conveniently captures, carry and storage; The braille scale that can directly touch on chi bar in reading opening obtains the length of actual measurement, the error caused because of operational factor when avoiding measurement; Reading opening is positioned on the indent arcwall face of protuberance, is convenient to location during use, adds the convenience that blind person uses.
Above-described embodiment is only used for further illustrating a kind of blind person's tape measure of the present utility model; but the utility model is not limited to embodiment; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all fall in the protection domain of technical solutions of the utility model.
Claims (6)
1. blind person's tape measure, including chi bar and the shell for accommodating chi bar, shell being provided with the opening that chi bar is outwards extracted out, it is characterized in that: described chi bar include the scale area that formed by braille scale and be positioned at front end, scale area without scale area; Described shell also has on the path that described chi bar is outwards extracted out one for touching the reading opening of described chi bar, the length of wherein said chi bar between reading opening with described opening is equal with the described length without scale area.
2. tape measure according to claim 1, is characterized in that: described chi bar front end is provided with the open outer side that is stuck in described shell and chi head for pulling out described chi bar.
3. tape measure according to claim 2, is characterized in that: described shell is outward extended with an extension in described opening side, and the end of this extension has a recess; The front end of described chi head has the protuberance of one and this recesses fit.
4. tape measure according to claim 1, is characterized in that: described shell is loop configuration, and it is inner that described chi bar is set around described loop configuration.
5. tape measure according to claim 4, is characterized in that: described shell is outward extended with a protuberance by excircle, and described reading opening is positioned at and is formed on the indent circular arc line segment of described protuberance; Described chi bar lead to described opening via described protuberance and the braille scale of its scale area towards described reading opening.
6. tape measure according to claim 4, is characterized in that: described enclosure is also arranged with a clockwork spring, and described clockwork spring one end is fixed on the inner periphery of described shell, and the other end connects the rear end of described chi bar; Described chi bar is set around on described clockwork spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850544.2U CN204373529U (en) | 2014-12-29 | 2014-12-29 | A kind of blind person's tape measure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850544.2U CN204373529U (en) | 2014-12-29 | 2014-12-29 | A kind of blind person's tape measure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204373529U true CN204373529U (en) | 2015-06-03 |
Family
ID=53329743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420850544.2U Expired - Fee Related CN204373529U (en) | 2014-12-29 | 2014-12-29 | A kind of blind person's tape measure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204373529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150243189A1 (en) * | 2013-12-26 | 2015-08-27 | Pranay Jain | Tactile Measuring Instrument |
-
2014
- 2014-12-29 CN CN201420850544.2U patent/CN204373529U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150243189A1 (en) * | 2013-12-26 | 2015-08-27 | Pranay Jain | Tactile Measuring Instrument |
| US9984589B2 (en) * | 2013-12-26 | 2018-05-29 | Pranay Jain | Tactile measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |