CN201514168U - Measuring tape with one-way brake device - Google Patents
Measuring tape with one-way brake device Download PDFInfo
- Publication number
- CN201514168U CN201514168U CN2009201982825U CN200920198282U CN201514168U CN 201514168 U CN201514168 U CN 201514168U CN 2009201982825 U CN2009201982825 U CN 2009201982825U CN 200920198282 U CN200920198282 U CN 200920198282U CN 201514168 U CN201514168 U CN 201514168U
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- China
- Prior art keywords
- housing
- chi
- mentioned
- tape
- brake holder
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- Expired - Fee Related
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Abstract
The utility model discloses a measuring tape with a one-way brake device, comprising a tape belt, a shell, a coil spring, a tape core and a one-way brake mechanism, wherein the tape belt has certain length; the shell is provided with certain containing cavity, a slot seam is arranged at the side of the shell, and the tape belt can stretch through the slot seam; one end of the coil spring is connected with the tape belt, and the other end thereof is connected with a tape core axis of the shell; and the tape core is rotatablely arranged inside the shell and is wound with the tape belt and the coil spring. The measuring tape has the advantages that a rolling ball is adopted as a stop part and is matched with an inclined rib, so that the tape belt is self-locked and located; a roller wheel is driven to move, so that unlocking state can be reached; the originality is novel, and the structure is simple and practical; and the locking force for the tape belt is gradually increased, and the impact force on the shell and the internal structure of the measuring tape is lower, so that the service life of the measuring tape can be prolonged.
Description
Technical field
The utility model relates to a kind of tape measure, particularly a kind of tape measure of band brake device.
Background technology
The tape measure of existing band brake device generally all in the following way, that is, after the chi band pulled out from housing, is operated clamping device, and the chi band is stopped on its position that is drawn out.Wherein, chi band brake device also has the mode that automatically locks that adopts, when this mode of employing, on the position after can making the chi band stop at it automatically to be drawn out from housing.This mode of automatically locking has following form, that is, to the chi band brake that stretches out on the chi core dish chi band is stopped by stop part.Though it is the method braking rapidly, stronger to the printing surface infringement impact big, when the chi band stops of chi band.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of tape measure that has one-way braking means.
To achieve these goals, technical solution adopted in the utility model is: a kind of tape measure that has one-way braking means comprises: a chi band has certain-length; One housing has and necessarily holds cavity, is provided with for the flexible line of rabbet joint of chi band at side; One wind spring, an end is connected with above-mentioned chi band, and the other end is connected with the chi mandrel of above-mentioned housing; One chi core changes and is located in the above-mentioned housing, is wound with above-mentioned chi band and wind spring; One one-way brake mechanism is located in the above-mentioned housing, the chi band can be positioned a certain position; Described one-way brake mechanism comprises: a brake holder, change on the brake holder axle of being located in the above-mentioned housing; One can brake the roller of the described chi band in location, is located in the cavity of brake holder; One diagonal bar is located in the above-mentioned housing, above-mentioned roller can be limited on the chi belt surface in order to braking positioning rule band; One forces above-mentioned rollers to be in the force application part of braking positioning states; One forces above-mentioned rollers to break away from the driver part of above-mentioned diagonal bar and chi belt surface, and this driver part has the operating position that is exposed at outside the housing;
Roller is cylindrical, and activity is located in the cavity of brake holder, need not the axle center and fixes;
There is a round tube hole at the brake holder middle part, and be arranged on the brake holder axle in the housing, one end of brake holder is provided with the roller that a cavity can hold the braking location, and the oral area at cavity is provided with spacing muscle, prevent that roller breaks away from cavity, the other end is provided with an elongated portion, forces brake holder to be rotated when being subjected to external force;
Be provided with a diagonal bar in the housing, and diagonal bar and the chi band that stretches out form an angle;
Force application part is one " V " shape spring leaf, and " V " shape spring leaf one end and housing are inconsistent, and the other end and brake holder are inconsistent;
Driver part is exposed at the operative end of hull outside by one and the drive link of an elongation is formed, is provided with a manhole in a side of operative end, and changes and be located on the interior cylinder of housing;
The drive link of driver part elongation and the elongated portion of brake holder are inconsistent.
The beneficial effects of the utility model: adopt ball as stop component, and in conjunction with the cooperation of diagonal bar, make the lock-bit of chi band, and the motion of driving rolls reaches released state, the intention novelty, simple and practical, be the process that progressively strengthens to the locking force of chi band, less to tape measure housing and inner structure impulsive force, long service life.
Description of drawings
Fig. 1, braking state structural drawing of the present utility model.
The A-A cut-open view of Fig. 2, Fig. 1.
Fig. 3, clutch state structural drawing of the present utility model.
Fig. 4, STRUCTURE DECOMPOSITION synoptic diagram of the present utility model.
Embodiment
See also its implementation process of description of drawings:
A kind of tape measure that has one-way braking means comprises: a chi band has certain-length; One housing has and necessarily holds cavity, is provided with for the flexible line of rabbet joint of chi band at side; Housing is made of positive chi shell 1 and anti-chi shell 11, a wind spring, and an end is connected with above-mentioned chi band, and the other end is connected with the chi mandrel of above-mentioned housing; One chi core 2 changes and is located in the above-mentioned housing, is wound with above-mentioned chi band 10 and wind spring; Chi band 10 is on chi core 2.One one-way brake mechanism is located in the above-mentioned housing, the chi band can be positioned a certain position; Described one-way brake mechanism comprises: a brake holder, change on the brake holder axle of being located in the above-mentioned housing 5; One can brake the roller of the described chi band in location, is located in the cavity of brake holder; One diagonal bar is located in the above-mentioned housing, above-mentioned roller can be limited on the chi belt surface in order to braking positioning rule band; One forces above-mentioned rollers to be in the force application part of braking positioning states; One forces above-mentioned rollers to break away from the driver part 3 of above-mentioned diagonal bar and chi belt surface, and this driver part 3 has the operating position that is exposed at outside the housing; Roller is an elastic body, is provided with annular groove in the centre, and it is circular-arc that two ends are, and activity is located in the cavity of brake holder; There is a round tube hole at the brake holder middle part, and be arranged on the brake holder axle in the housing, one end of brake holder is provided with the roller 9 that a cavity can hold the braking location, and the oral area at cavity is provided with spacing muscle, prevent that roller breaks away from cavity, the other end is provided with an elongated portion, forces brake holder to be rotated when being subjected to external force; Be provided with a diagonal bar 8 in the housing, and diagonal bar 8 forms an angle with the chi band that stretches out; Force application part is one " V " shape spring leaf 7, and " V " shape spring leaf 7 one ends and housing are inconsistent, and the other end and brake holder 4 are inconsistent; " V " shape spring leaf 7 is stuck in the draw-in groove 6, and driver part is exposed at the operative end of hull outside by one and the drive link of an elongation is formed, is provided with a manhole in a side of operative end, and changes and be located on the interior cylinder of housing; The drive link of driver part elongation and the elongated portion of brake holder are inconsistent.When pulling out outside chi is taken to, brake holder is inclined upwardly by pulling out of chi band with roller and separates release with the chi band, and roller moves along the diagonal bar direction.When the chi band stops to pull out, to acting force brake holder and downward-sloping the applying with the chi band of roller are pinned by the interior of the spring leaf on the chi shell, and move along the diagonal bar direction.When the chi band will be regained, press button, brake holder and roller upwards lift release, and the chi band is regained.
The above only is a specific embodiment of the utility model, but architectural feature of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and variation of being done or modification all are encompassed among the claim of the present utility model.
Claims (7)
1. tape measure that has one-way braking means, comprising: a chi band has certain-length;
One housing has and necessarily holds cavity, is provided with for the flexible line of rabbet joint of chi band at side;
One wind spring, an end is connected with above-mentioned chi band, and the other end is connected with the chi mandrel of above-mentioned housing; One chi core changes and is located in the above-mentioned housing, is wound with above-mentioned chi band and wind spring;
One one-way brake mechanism is located in the above-mentioned housing, the chi band can be positioned a certain position; It is characterized in that described one-way brake mechanism comprises:
One brake holder is changeed on the brake holder axle of being located in the above-mentioned housing;
One can brake the roller of the described chi band in location, is located in the cavity of brake holder;
One diagonal bar is located in the above-mentioned housing, above-mentioned roller can be limited on the chi belt surface in order to braking positioning rule band;
One forces above-mentioned rollers to be in the force application part of braking positioning states;
One forces above-mentioned rollers to break away from the driver part of above-mentioned diagonal bar and chi belt surface, and this driver part has the operating position that is exposed at outside the housing.
2. the tape measure that has one-way braking means according to claim 1 is characterized in that, roller is cylindrical, and activity is located in the cavity of brake holder, need not the axle center and fixes.
3. the tape measure that has one-way braking means according to claim 1 and 2, it is characterized in that, there is a round tube hole at the brake holder middle part, and be arranged on the brake holder axle in the housing, one end of brake holder is provided with the roller that a cavity can hold the braking location, and is provided with spacing muscle at the oral area of cavity, prevents that roller breaks away from cavity, the other end is provided with an elongated portion, forces brake holder to be rotated when being subjected to external force.
4. the tape measure that has one-way braking means according to claim 3 is characterized in that, is provided with a diagonal bar in the housing, and diagonal bar and the chi band that stretches out form an angle.
5. the tape measure that has one-way braking means according to claim 4 is characterized in that, force application part is one " V " shape spring leaf, and " V " shape spring leaf one end and housing are inconsistent, and the other end and brake holder are inconsistent.
6. the tape measure that has one-way braking means according to claim 5, it is characterized in that, driver part is exposed at the operative end of hull outside by one and the drive link of an elongation is formed, is provided with a manhole in a side of operative end, and changes and be located on the interior cylinder of housing.
7. the tape measure that has one-way braking means according to claim 6 is characterized in that, the drive link of driver part elongation and the elongated portion of brake holder are inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201982825U CN201514168U (en) | 2009-10-12 | 2009-10-12 | Measuring tape with one-way brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201982825U CN201514168U (en) | 2009-10-12 | 2009-10-12 | Measuring tape with one-way brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514168U true CN201514168U (en) | 2010-06-23 |
Family
ID=42485579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201982825U Expired - Fee Related CN201514168U (en) | 2009-10-12 | 2009-10-12 | Measuring tape with one-way brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829681A (en) * | 2012-07-27 | 2012-12-19 | 胡兆贤 | Brake measuring tape |
| CN105004231A (en) * | 2015-04-30 | 2015-10-28 | 广西大学 | Tape |
-
2009
- 2009-10-12 CN CN2009201982825U patent/CN201514168U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829681A (en) * | 2012-07-27 | 2012-12-19 | 胡兆贤 | Brake measuring tape |
| CN102829681B (en) * | 2012-07-27 | 2016-05-04 | 胡兆贤 | A kind of brake |
| CN105004231A (en) * | 2015-04-30 | 2015-10-28 | 广西大学 | Tape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20121012 |