US20030141399A1 - Tape locking device for tape measure - Google Patents
Tape locking device for tape measure Download PDFInfo
- Publication number
- US20030141399A1 US20030141399A1 US10/059,536 US5953602A US2003141399A1 US 20030141399 A1 US20030141399 A1 US 20030141399A1 US 5953602 A US5953602 A US 5953602A US 2003141399 A1 US2003141399 A1 US 2003141399A1
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- US
- United States
- Prior art keywords
- tape
- housing
- stopper
- cylinder
- locking lever
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
- B65H75/4428—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting on the reel or on a reel blocking mechanism
- B65H75/4431—Manual stop or release button
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
- B65H75/4421—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting directly on the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1005—Means for controlling winding or unwinding of tapes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1005—Means for controlling winding or unwinding of tapes
- G01B3/1007—Means for locking
- G01B2003/1012—Means for locking engaging the tape in a direction parallel to the tape itself
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1005—Means for controlling winding or unwinding of tapes
- G01B3/1007—Means for locking
- G01B2003/1017—Means for locking acting on the whole coil
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1005—Means for controlling winding or unwinding of tapes
- G01B2003/1033—Means for activating the locking, braking or releasing of the tape, e.g. buttons
- G01B2003/1035—Means for activating the locking, braking or releasing of the tape, e.g. buttons by pivotal operation
Definitions
- the present invention relates generally to a tape locking device for tape measures, for locking the tape after unwinding the tape from a bobbin by a desired length, and more particularly, to a tape locking device for tape measures, which includes a stopper connected to the lower portion of a locking lever and provided with a coil spring fitted over the stopper and elastically biased by the coil spring to be wedged in the gap between the part of the tape unwound from a bobbin set in a housing and the part of the tape wound around the bobbin, thus automatically locking the drawn tape after drawing a desired length of the tape, in addition to smoothly retracting the tape into the housing.
- a tape measure has a housing, a coiled tape connected at its first end to a spring, and wound around a bobbin set in the housing.
- a tab is attached to the second end of the tape, and positioned outside a slot formed on the lower end of a wall of the housing. The tab is designed to draw the tape from the housing when pulling the tab.
- the tape is retracted into the housing by an elastic restoring force of the spring when releasing the tab.
- FIG. 1 is a perspective view showing a conventional tape measure provided with a locking device
- FIG. 2 is a sectional view of the conventional tape measure
- the conventional tape measure has a housing 1 , a coiled tape 2 , and a tab 4 .
- the housing 1 has a size to be held in a single hand.
- the coiled tape 2 is connected, at its first end, to a spring (not shown) and wound around a bobbin 3 set in the housing 1 .
- the tab 4 is attached to the second end of the tape 2 for allowing a user to grasp the tape 2 when drawing out the tape from the housing 1 for measuring the length of a desired object.
- This tab 4 is positioned outside a slot 5 formed on the lower end of a wall of the housing 1 .
- the tab 4 is downwardly bent to be perpendicular to the bottom of the housing 1 , thus preventing the end of the tape 2 attached to the tab 4 from entering the housing 1 through the slot 5 by the restoring force of the spring.
- a bent structure allows the tab 4 to serve as a fixing hook and a contact surface with respect to an end of a measured object.
- a locking lever 6 is mounted to the upper portion of the wall where the slot 5 is formed, and locks the drawn tape 2 after drawing out a desired length of tape from the housing 1 , while overcoming the spring force of the spring which is applied to the tape 2 to retract the tape 2 into the housing 1 .
- the locking lever 6 is provided on its back surface with a compression piece 7 which moves up and down along the locking lever 6 .
- the locking operation of the locking lever 6 is as follows. When the locking lever 6 is moved downwardly, the end of the compression piece 7 compresses the portion of the tape 2 led to the slot 5 and locks the tape 2 against its retraction by the restoring force of the spring.
- such a conventional tape measure has a problem that it is inconvenient to use, since a user must move the locking lever 6 downwards to lock the tape with the drawn tape being grasped, when it is required to lock the drawn tape 2 after drawing a desired length of the tape from the housing 1 by pulling the tab 4 attached to the end of the tape 2 .
- the conventional tape measure has another problem that the tape may be damaged or scratched, since an excessively strong compressive force is applied to the tape 2 so as to overcome the elastic restoring force of the tape 2 .
- the conventional tape measure has still another problem that, when the locking lever 6 is restored to its original position so as to retract the drawn tape into the housing, the tape is wound around the bobbin at an excessively high speed by the elasticity of the spring connected to the tape, thus causing a user to be sometimes injured.
- an object of the present invention is to provide a tape locking device for tape measures, which has a locking lever rotatably hinged to the upper portion of the wall of a housing, and a cylinder connected, at its first end, to the lower portion of the locking lever, and connected, at its second end, to a stopper, provided with a coil spring fitted over the cylinder, whereby the stopper is elastically biased by the coil spring to be wedged in the gap between a wound part of the tape around the bobbin and a linear part of the tape led to the slot when releasing the locking lever after drawing a desired length of tape from the slot, thus automatically locking the drawn tape, in addition to smoothly winding the tape around a bobbin set in the housing when the locking lever is pushed so that the tape is retracted into the housing.
- the present invention provides a tape locking device for a tape measure, the tape measure including a housing, a coiled tape connected at its first end to a spring and wound around a bobbin set in the housing, and a tab attached to the second end of the tape for allowing a user to grasp the tape when drawing out the tape, and positioned outside a slot formed on the lower end of a wall of the housing;
- the tape locking device comprising a locking lever hinged to the upper portion of the wall of the housing in such a way to be rotated frontward and rearward around a hinged joint, and a cylinder connected to the lower portion of a connecting piece downwardly extending from the locking lever, with a coil spring fitted over the cylinder, whereby the stopper having a cone shape and made of rubber is connected to the end of the cylinder, and elastically biased by the coil spring to be wedged into the gap between a part of the tape wound around the bobbin and a unwound part of the tape led to the
- the stopper has a cone shape so as to be brought into contact simultaneously with the outer circumferential surface of the tape wound around the bobbin and the unwound part of the tape led to the slot.
- the stopper is made of a material having a predetermined friction coefficient relative to a smooth tape surface, such as rubber, or synthetic resin.
- the stopper is always biased by the coil spring fitted over the cylinder in a direction such that the stopper is brought into contact with both the outer circumferential surface of the tape having a radius which becomes smaller as the tape is drawn out from the housing, and the unwound part of the upper surface of the tape led to the slot.
- the tape When releasing the tape after drawing a desired length of tape from the housing, the tape tends to be retracted into the housing by the spring connected to the tape. At this time, the frictional force of the stopper is applied to the tape, such that the tape is locked as it is appropriately drawn.
- the cylinder having the stopper moves toward the front wall of the housing to remove the stopper from the gap between the wound part of the tape and the unwound part of the tape led to the slot, thus accomplishing smooth winding of the tape around the bobbin.
- FIG. 1 is a perspective view showing a conventional tape measure provided with a locking device
- FIG. 2 is a sectional view of the conventional tape measure
- FIG. 3 is an exploded perspective view of a tape measure according to this invention.
- FIG. 4 is a sectional view of the tape measure of this invention.
- FIG. 5 is a front view of the tape measure of this invention.
- FIG. 3 is an exploded perspective view of a tape measure according to this invention
- FIG. 4 is a sectional view of the tape measure of this invention
- FIG. 5 is a front view of the tape measure of this invention.
- the tape locking device for tape measures of this invention includes a locking lever 14 having a connecting piece 15 , a cylinder 16 provided with a coil spring 17 , and a stopper 18 .
- the locking lever 14 is hinged to the upper portion of the wall of a housing 10 in such a way to be rotated frontward and rearward around the hinged joint, and the connecting piece 15 downwardly extends from the locking lever 14 .
- the cylinder 16 is fitted, at its first end, into a hole formed at the lower portion of the connecting piece 15 .
- the coil spring 17 is fitted over the cylinder 16 .
- the stopper 18 is made of a frictional material, such as rubber.
- the locking lever 14 provided with the connecting piece 15 downwardly extending therefrom is hinged to the upper portion of the wall of the housing 10 in such a way as to be rotated frontward and rearward around the hinged joint by the push operation of a user.
- the cylinder 16 having a tetragonal shape or round shape in its cross-section is fitted, at its first end, into the hole formed on the lower portion of the connecting piece 15 .
- the second end of the cylinder 16 faces the wound part of the tape 12 around the bobbin 11 .
- the coil spring 17 having elasticity is fitted over the cylinder 16 .
- the stopper 18 connected to the second end of the cylinder 16 is made of a material having a high surface frictional coefficient, such as rubber, or synthetic resin.
- the end of the cylinder 16 connected to the connecting piece 15 is fastened to the connecting piece 15 by a spring washer 19 .
- the stopper 18 is elastically biased by the coil spring 17 to be wedged into the triangular gap between the outer circumferential surface of the wound part of the tape 12 around the bobbin 11 and the linear part of the tape 12 led to the slot 13 .
- the stopper 18 has a wedge shape, and is tapered in a direction toward its end in such a way as to tightly come into contact with both the wound part of the tape 12 and the unwound part of the tape 12 .
- the tape 12 is brought into contact with a surface of the stopper 18 , when pulling out the tape 12 through the slot 13 formed on the lower portion of the front wall of the housing 10 while unwinding the tape 12 from the bobbin 11 set in the housing 10 .
- the wedge-shaped stopper 18 applies frictional force to both the unwound part and the wound part of the tape 12 , thus automatically locking the drawn tape 12 .
- the tape 12 is automatically wound around the bobbin 11 after passing through the slot 13 by the elastic force of the spring connected to the bobbin 11 .
- the winding speed of the tape 12 around the bobbin 11 is controlled by the user manipulating the locking lever 14 , and so the tape 12 is smoothly retracted into the housing.
- a user holds the housing of the tape measure with his one hand while pulling, with his other hand, the tab T positioned outside the slot 13 formed on the lower end of the wall of the housing 10 such that a desired length of the tape is drawn out from the housing 10 .
- the tape 12 tends to be retracted into the housing 10 .
- the frictional force of the stopper 18 is applied to the tape 12 , such that the tape 12 is locked as it is appropriately drawn.
- the present invention provides a tape locking device for a tape measure, which has a locking lever hinged to the upper portion of the wall of a housing in such a way to be rotated frontward and rearward around a hinged joint, and a cylinder connected, at its first end, to a connecting piece downwardly extending from the locking lever, and connected, at its second end, to a stopper, with a coil spring fitted over the cylinder, whereby the stopper is elastically biased by the coil spring to be wedged in the gap between a wound part of the tape around the bobbin and a linear part of the tape led to the slot when releasing the locking lever after drawing a desired length of tape from the slot, thus automatically locking the drawn tape, in addition to smooth winding of the tape around a bobbin set in the housing when the locking lever is pushed so that the tape is retracted into the housing.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tape Measures (AREA)
- Package Frames And Binding Bands (AREA)
- Accessories Of Cameras (AREA)
Abstract
Description
- 1. Field of the Invention
- The present invention relates generally to a tape locking device for tape measures, for locking the tape after unwinding the tape from a bobbin by a desired length, and more particularly, to a tape locking device for tape measures, which includes a stopper connected to the lower portion of a locking lever and provided with a coil spring fitted over the stopper and elastically biased by the coil spring to be wedged in the gap between the part of the tape unwound from a bobbin set in a housing and the part of the tape wound around the bobbin, thus automatically locking the drawn tape after drawing a desired length of the tape, in addition to smoothly retracting the tape into the housing.
- 2. Description of the Prior Art
- Generally, a tape measure has a housing, a coiled tape connected at its first end to a spring, and wound around a bobbin set in the housing. A tab is attached to the second end of the tape, and positioned outside a slot formed on the lower end of a wall of the housing. The tab is designed to draw the tape from the housing when pulling the tab. On the other hand, the tape is retracted into the housing by an elastic restoring force of the spring when releasing the tab.
- Some tape measures with a locking device have been proposed. This locking device prevents the tape from being undesirably retracted into the housing by the elastic restoring force of the spring, even when a pulling force is removed from the tab after drawing out the tape from the housing.
- FIG. 1 is a perspective view showing a conventional tape measure provided with a locking device, and FIG. 2 is a sectional view of the conventional tape measure. As shown in the drawings, the conventional tape measure has a housing1, a
coiled tape 2, and atab 4. In general, the housing 1 has a size to be held in a single hand. The coiledtape 2 is connected, at its first end, to a spring (not shown) and wound around abobbin 3 set in the housing 1. Thetab 4 is attached to the second end of thetape 2 for allowing a user to grasp thetape 2 when drawing out the tape from the housing 1 for measuring the length of a desired object. Thistab 4 is positioned outside aslot 5 formed on the lower end of a wall of the housing 1. - The
tab 4 is downwardly bent to be perpendicular to the bottom of the housing 1, thus preventing the end of thetape 2 attached to thetab 4 from entering the housing 1 through theslot 5 by the restoring force of the spring. In addition, such a bent structure allows thetab 4 to serve as a fixing hook and a contact surface with respect to an end of a measured object. - A
locking lever 6 is mounted to the upper portion of the wall where theslot 5 is formed, and locks the drawntape 2 after drawing out a desired length of tape from the housing 1, while overcoming the spring force of the spring which is applied to thetape 2 to retract thetape 2 into the housing 1. - The
locking lever 6 is provided on its back surface with acompression piece 7 which moves up and down along thelocking lever 6. The locking operation of thelocking lever 6 is as follows. When thelocking lever 6 is moved downwardly, the end of thecompression piece 7 compresses the portion of thetape 2 led to theslot 5 and locks thetape 2 against its retraction by the restoring force of the spring. - On the other hand, when it is required to retract the locked
tape 3 into the housing 1 through theslot 5, thelocking lever 6 is moved upwardly so that thecompression piece 7 is separated from the locked portion of thetape 2. Then, the drawntape 2 is retracted into the housing 1 to be rewound around thebobbin 3. - However, such a conventional tape measure has a problem that it is inconvenient to use, since a user must move the
locking lever 6 downwards to lock the tape with the drawn tape being grasped, when it is required to lock the drawntape 2 after drawing a desired length of the tape from the housing 1 by pulling thetab 4 attached to the end of thetape 2. In addition, the conventional tape measure has another problem that the tape may be damaged or scratched, since an excessively strong compressive force is applied to thetape 2 so as to overcome the elastic restoring force of thetape 2. - The conventional tape measure has still another problem that, when the
locking lever 6 is restored to its original position so as to retract the drawn tape into the housing, the tape is wound around the bobbin at an excessively high speed by the elasticity of the spring connected to the tape, thus causing a user to be sometimes injured. - Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a tape locking device for tape measures, which has a locking lever rotatably hinged to the upper portion of the wall of a housing, and a cylinder connected, at its first end, to the lower portion of the locking lever, and connected, at its second end, to a stopper, provided with a coil spring fitted over the cylinder, whereby the stopper is elastically biased by the coil spring to be wedged in the gap between a wound part of the tape around the bobbin and a linear part of the tape led to the slot when releasing the locking lever after drawing a desired length of tape from the slot, thus automatically locking the drawn tape, in addition to smoothly winding the tape around a bobbin set in the housing when the locking lever is pushed so that the tape is retracted into the housing.
- In order to accomplish the above object, the present invention provides a tape locking device for a tape measure, the tape measure including a housing, a coiled tape connected at its first end to a spring and wound around a bobbin set in the housing, and a tab attached to the second end of the tape for allowing a user to grasp the tape when drawing out the tape, and positioned outside a slot formed on the lower end of a wall of the housing; the tape locking device comprising a locking lever hinged to the upper portion of the wall of the housing in such a way to be rotated frontward and rearward around a hinged joint, and a cylinder connected to the lower portion of a connecting piece downwardly extending from the locking lever, with a coil spring fitted over the cylinder, whereby the stopper having a cone shape and made of rubber is connected to the end of the cylinder, and elastically biased by the coil spring to be wedged into the gap between a part of the tape wound around the bobbin and a unwound part of the tape led to the slot.
- Preferably, the stopper has a cone shape so as to be brought into contact simultaneously with the outer circumferential surface of the tape wound around the bobbin and the unwound part of the tape led to the slot. And, the stopper is made of a material having a predetermined friction coefficient relative to a smooth tape surface, such as rubber, or synthetic resin.
- Further, the stopper is always biased by the coil spring fitted over the cylinder in a direction such that the stopper is brought into contact with both the outer circumferential surface of the tape having a radius which becomes smaller as the tape is drawn out from the housing, and the unwound part of the upper surface of the tape led to the slot.
- When releasing the tape after drawing a desired length of tape from the housing, the tape tends to be retracted into the housing by the spring connected to the tape. At this time, the frictional force of the stopper is applied to the tape, such that the tape is locked as it is appropriately drawn. When pushing the locking lever mounted on the upper portion of the housing, the cylinder having the stopper moves toward the front wall of the housing to remove the stopper from the gap between the wound part of the tape and the unwound part of the tape led to the slot, thus accomplishing smooth winding of the tape around the bobbin.
- The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
- FIG. 1 is a perspective view showing a conventional tape measure provided with a locking device;
- FIG. 2 is a sectional view of the conventional tape measure;
- FIG. 3 is an exploded perspective view of a tape measure according to this invention;
- FIG. 4 is a sectional view of the tape measure of this invention; and
- FIG. 5 is a front view of the tape measure of this invention.
- Reference now should be made to the drawings, in which the same reference numerals are used throughout the different drawings to designate the same or similar components.
- FIG. 3 is an exploded perspective view of a tape measure according to this invention, FIG. 4 is a sectional view of the tape measure of this invention, and FIG. 5 is a front view of the tape measure of this invention.
- As shown in the drawings, the tape locking device for tape measures of this invention includes a
locking lever 14 having a connectingpiece 15, acylinder 16 provided with acoil spring 17, and astopper 18. Thelocking lever 14 is hinged to the upper portion of the wall of ahousing 10 in such a way to be rotated frontward and rearward around the hinged joint, and the connectingpiece 15 downwardly extends from thelocking lever 14. Thecylinder 16 is fitted, at its first end, into a hole formed at the lower portion of the connectingpiece 15. Thecoil spring 17 is fitted over thecylinder 16. Thestopper 18 is made of a frictional material, such as rubber. - According to this invention, when the
tape 12 wound around abobbin 11 set in thehousing 10 is pulled out through theslot 13 formed on the lower portion of the housing, a triangle-shaped gap is formed between the unwound part of thetape 12 led to theslot 13 and the outer circumferential surface of the part of thetape 12 wound around thebobbin 11. At this time, thestopper 18 is elastically biased by the coil spring to be inserted into the triangular gap when releasing thelocking lever 14 after drawing a desired length oftape 12 from theslot 13, so the drawntape 12 is automatically locked by a frictional force applied by thestopper 18. - The
locking lever 14 provided with the connectingpiece 15 downwardly extending therefrom is hinged to the upper portion of the wall of thehousing 10 in such a way as to be rotated frontward and rearward around the hinged joint by the push operation of a user. Thecylinder 16 having a tetragonal shape or round shape in its cross-section is fitted, at its first end, into the hole formed on the lower portion of the connectingpiece 15. On the other hand, the second end of thecylinder 16 faces the wound part of thetape 12 around thebobbin 11. - The
coil spring 17 having elasticity is fitted over thecylinder 16. Thestopper 18 connected to the second end of thecylinder 16 is made of a material having a high surface frictional coefficient, such as rubber, or synthetic resin. The end of thecylinder 16 connected to the connectingpiece 15 is fastened to the connectingpiece 15 by aspring washer 19. - The
stopper 18 is elastically biased by thecoil spring 17 to be wedged into the triangular gap between the outer circumferential surface of the wound part of thetape 12 around thebobbin 11 and the linear part of thetape 12 led to theslot 13. Preferably, thestopper 18 has a wedge shape, and is tapered in a direction toward its end in such a way as to tightly come into contact with both the wound part of thetape 12 and the unwound part of thetape 12. - The
tape 12 is brought into contact with a surface of thestopper 18, when pulling out thetape 12 through theslot 13 formed on the lower portion of the front wall of thehousing 10 while unwinding thetape 12 from thebobbin 11 set in thehousing 10. When releasing thetape 12 after drawing out thetape 12 from thehousing 10, the wedge-shaped stopper 18 applies frictional force to both the unwound part and the wound part of thetape 12, thus automatically locking the drawntape 12. - On the other hand, when it is required to retract the drawn tape into the inside of the
housing 10, a user pushes the lockinglever 14. Then, the connectingpiece 15 connected to the lower portion of the lockinglever 14 is moved toward the front wall of thehousing 10. At this time, thecylinder 16 connected to the end of the connectingpiece 15 is also moved in the same direction, thus removing thestopper 18 from the gap between the wound part of thetape 12 and the linear part of thetape 12 led to theslot 13. - At this time, the
tape 12 is automatically wound around thebobbin 11 after passing through theslot 13 by the elastic force of the spring connected to thebobbin 11. In such a case, the winding speed of thetape 12 around thebobbin 11 is controlled by the user manipulating the lockinglever 14, and so thetape 12 is smoothly retracted into the housing. - The operation of the tape locking device constructed in this way is as follows.
- First, a user holds the housing of the tape measure with his one hand while pulling, with his other hand, the tab T positioned outside the
slot 13 formed on the lower end of the wall of thehousing 10 such that a desired length of the tape is drawn out from thehousing 10. At this time, when thetape 12 is released, thetape 12 tends to be retracted into thehousing 10. However, the frictional force of thestopper 18 is applied to thetape 12, such that thetape 12 is locked as it is appropriately drawn. - When finishing measuring the length of the desired object with the
tape 12 drawn out from thehousing 10, the user pushes the lockinglever 14 protrusively mounted to the upper portion of the wall of thehousing 10 such that the wedge-shapedstopper 18 connected to the connectingpiece 15 is removed from the gap between the wound part of thetape 12 around thebobbin 11 and the unwound part of thetape 12 led to theslot 13, thus automatically winding thetape 12 around thebobbin 11 set in thehousing 10. - As described above, the present invention provides a tape locking device for a tape measure, which has a locking lever hinged to the upper portion of the wall of a housing in such a way to be rotated frontward and rearward around a hinged joint, and a cylinder connected, at its first end, to a connecting piece downwardly extending from the locking lever, and connected, at its second end, to a stopper, with a coil spring fitted over the cylinder, whereby the stopper is elastically biased by the coil spring to be wedged in the gap between a wound part of the tape around the bobbin and a linear part of the tape led to the slot when releasing the locking lever after drawing a desired length of tape from the slot, thus automatically locking the drawn tape, in addition to smooth winding of the tape around a bobbin set in the housing when the locking lever is pushed so that the tape is retracted into the housing.
- Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (3)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/059,536 US6595451B1 (en) | 2002-01-29 | 2002-01-29 | Tape locking device for tape measure |
AT02788872T ATE326005T1 (en) | 2002-01-29 | 2002-10-14 | TAPE LOCKING DEVICE FOR A TAPE MEASURING |
ES02788872T ES2261764T3 (en) | 2002-01-29 | 2002-10-14 | TAPE BLOCK DEVICE FOR METAL RIBBONS. |
DE60211385T DE60211385T2 (en) | 2002-01-29 | 2002-10-14 | BELT LOCKING DEVICE FOR A BANDMASS |
PCT/KR2002/001913 WO2003064964A1 (en) | 2002-01-29 | 2002-10-14 | Tape locking device for tape measure |
EP02788872A EP1472504B1 (en) | 2002-01-29 | 2002-10-14 | Tape locking device for tape measure |
JP2003564516A JP3848326B2 (en) | 2002-01-29 | 2002-10-14 | Tape measure tape fixing device |
KR20-2002-0035262U KR200305242Y1 (en) | 2002-01-29 | 2002-11-26 | Tape locking device for tape measure |
KR10-2002-0073761A KR100470697B1 (en) | 2002-01-29 | 2002-11-26 | Tape locking device for tape measure |
CNB021560617A CN1194202C (en) | 2002-01-29 | 2002-12-13 | Tape Locking device for tape measure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/059,536 US6595451B1 (en) | 2002-01-29 | 2002-01-29 | Tape locking device for tape measure |
Publications (2)
Publication Number | Publication Date |
---|---|
US6595451B1 US6595451B1 (en) | 2003-07-22 |
US20030141399A1 true US20030141399A1 (en) | 2003-07-31 |
Family
ID=22023591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/059,536 Expired - Lifetime US6595451B1 (en) | 2002-01-29 | 2002-01-29 | Tape locking device for tape measure |
Country Status (9)
Country | Link |
---|---|
US (1) | US6595451B1 (en) |
EP (1) | EP1472504B1 (en) |
JP (1) | JP3848326B2 (en) |
KR (2) | KR200305242Y1 (en) |
CN (1) | CN1194202C (en) |
AT (1) | ATE326005T1 (en) |
DE (1) | DE60211385T2 (en) |
ES (1) | ES2261764T3 (en) |
WO (1) | WO2003064964A1 (en) |
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US7703216B2 (en) * | 2008-09-16 | 2010-04-27 | Index Measuring Tape Co., Ltd | Automatic locking mechanism for a measuring tape device |
EP1914509A3 (en) * | 2006-10-16 | 2012-04-04 | The Stanley Works | A Retractable Rule Assembly, and a Blade Locking Structure |
WO2019186003A1 (en) * | 2018-03-28 | 2019-10-03 | Spoolex | Device for winding up and unwinding a plurality of reels of strips |
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US6595451B1 (en) * | 2002-01-29 | 2003-07-22 | Komelon Corporation | Tape locking device for tape measure |
-
2002
- 2002-01-29 US US10/059,536 patent/US6595451B1/en not_active Expired - Lifetime
- 2002-10-14 JP JP2003564516A patent/JP3848326B2/en not_active Expired - Fee Related
- 2002-10-14 AT AT02788872T patent/ATE326005T1/en not_active IP Right Cessation
- 2002-10-14 WO PCT/KR2002/001913 patent/WO2003064964A1/en active IP Right Grant
- 2002-10-14 ES ES02788872T patent/ES2261764T3/en not_active Expired - Lifetime
- 2002-10-14 DE DE60211385T patent/DE60211385T2/en not_active Expired - Lifetime
- 2002-10-14 EP EP02788872A patent/EP1472504B1/en not_active Expired - Lifetime
- 2002-11-26 KR KR20-2002-0035262U patent/KR200305242Y1/en not_active IP Right Cessation
- 2002-11-26 KR KR10-2002-0073761A patent/KR100470697B1/en active IP Right Grant
- 2002-12-13 CN CNB021560617A patent/CN1194202C/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1914509A3 (en) * | 2006-10-16 | 2012-04-04 | The Stanley Works | A Retractable Rule Assembly, and a Blade Locking Structure |
US7703216B2 (en) * | 2008-09-16 | 2010-04-27 | Index Measuring Tape Co., Ltd | Automatic locking mechanism for a measuring tape device |
WO2019186003A1 (en) * | 2018-03-28 | 2019-10-03 | Spoolex | Device for winding up and unwinding a plurality of reels of strips |
FR3079508A1 (en) * | 2018-03-28 | 2019-10-04 | Spoolex | DEVICE FOR ROLLING AND DEROULING A PLURALITY OF STRIPE ROLLS |
Also Published As
Publication number | Publication date |
---|---|
EP1472504A1 (en) | 2004-11-03 |
CN1435673A (en) | 2003-08-13 |
KR20030065290A (en) | 2003-08-06 |
JP2005516204A (en) | 2005-06-02 |
DE60211385T2 (en) | 2007-02-22 |
EP1472504B1 (en) | 2006-05-10 |
US6595451B1 (en) | 2003-07-22 |
ES2261764T3 (en) | 2006-11-16 |
KR200305242Y1 (en) | 2003-02-25 |
ATE326005T1 (en) | 2006-06-15 |
WO2003064964A1 (en) | 2003-08-07 |
EP1472504A4 (en) | 2005-04-20 |
DE60211385D1 (en) | 2006-06-14 |
KR100470697B1 (en) | 2005-03-09 |
CN1194202C (en) | 2005-03-23 |
JP3848326B2 (en) | 2006-11-22 |
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