CN210293007U - Measuring tape - Google Patents
Measuring tape Download PDFInfo
- Publication number
- CN210293007U CN210293007U CN201921548433.5U CN201921548433U CN210293007U CN 210293007 U CN210293007 U CN 210293007U CN 201921548433 U CN201921548433 U CN 201921548433U CN 210293007 U CN210293007 U CN 210293007U
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- Prior art keywords
- claw
- tape
- tape measure
- band
- hook
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Abstract
The utility model aims to provide a thereby can prevent deformation of hook claw and carry out accurate measuring tape. A tape measure is provided with: a graduated strip portion; and a claw part (11) which is provided at the front end of the band part and is erected at a predetermined angle with respect to the extension direction of the band part, wherein the thickness of the claw part (11) is in the range of 1.3mm to 3 mm.
Description
Technical Field
The present invention relates to a tape measure, and more particularly to a tape measure having a hook portion at the front end of a tape portion.
Background
Conventionally, there has been proposed a tape measure in which a long band portion with scales is wound around and stored in a main body case, and the band portion is fed out when the tape measure is used to measure the length of a measurement target (see, for example, patent document 1). In the conventional tape measure as described above, a hook provided at the tip of the tape portion is hooked on or pressed against an end portion of a measurement target, and a zero position of a scale mark provided on the tape portion is positioned. In patent document 1, a locking hole is formed in the hooking claw, and the locking hole is locked to a measuring pile driven at a measurement start position, thereby positioning a zero position of the scale.
In the measurement using the tape measure as described above, the hook claw is bent at 90 degrees with respect to the band portion, and the zero position of the scale is aligned with the inner side of the hook claw, whereby the measurement can be performed.
Documents of the prior art
Patent document
Patent document 1: microfilm of Japanese patent application No. 57-063502 (Japanese Kokai No. 58-165601)
SUMMERY OF THE UTILITY MODEL
Problem to be solved by utility model
However, in the conventional tape measure, the hook claw is exposed to the outside of the main body case even when the tape measure is not used, and therefore, when the tape measure is dropped during handling, stress may be applied to the hook claw and the hook claw may be deformed. Further, even when the tape measure is used, since the hooking claw is hooked to or pressed against a measurement target or a measurement pile, an undesirably large force may act, and the hooking claw may be deformed.
When the hook claw is deformed as described above, the zero position of the belt portion and the inside of the hook claw become inconsistent, and therefore, in the case of using the hook claw, an accurate measurement result cannot be obtained.
Therefore, an object of the present invention is to provide a tape measure capable of preventing deformation of a hooking claw and performing accurate measurement.
Means for solving the problems
In order to solve the above problem, the tape measure of the present invention includes: a graduated strip portion; and a claw portion provided at a tip of the band portion and standing at a predetermined angle with respect to an extending direction of the band portion, the claw portion having a thickness in a range of 1.3mm to 3 mm.
In the tape measure of the present invention, the thickness of the hook portion of the hook claw is in the range of 1.3mm or more and 3mm or less, and therefore the bending rigidity of the hook portion is improved, and the deformation of the hook claw can be prevented to perform accurate measurement.
In addition, in an aspect of the present invention, the given angle is 90 degrees.
In one aspect of the present invention, the claw portion is formed of a flat plate having no holes.
In one aspect of the present invention, the tape measure includes a band holding portion that is formed integrally with the claw portion, extends in the extending direction, and holds the band portion, and the band holding portion is bent in a range having a curvature radius of 9mm or more and 15mm or less.
Effect of the utility model
Provided is a tape measure capable of preventing deformation of a hooking claw and performing accurate measurement.
Drawings
Fig. 1 is a schematic view illustrating an outline of a tape measure 100 according to the present invention.
Fig. 2 is a schematic perspective view showing the configuration of the hook claw 10.
Fig. 3 is a schematic front view showing the configuration of the hooking claw 10.
Fig. 4 is a schematic side view showing the configuration of the hooking pawl 10.
Fig. 5 is a schematic plan view showing the configuration of the hook claw 10.
(description of reference numerals)
100 tape measure
10 hook claw
20 main body case
30 ribbon part
11 claw part
11a curve part
11b recess
12 strap holding part
12a sliding hole
13 clamping piece
14 base plate
15 sliding pin
16 fixed pin
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the drawings. The same or equivalent constituent elements, members, and processes shown in the respective drawings are denoted by the same reference numerals, and overlapping descriptions are omitted as appropriate. Fig. 1 is a schematic view illustrating an outline of a tape measure 100 according to the present invention. As shown in fig. 1, the tape measure 100 includes a hook 10, a main body case 20, and a band 30. In fig. 1, a part of the main body case 20 is broken to show an internal structure.
The hook claw 10 is a member attached to one end of the band 30, and is exposed outside the main body case 20 even in a state where the band 30 is wound around the main body case 20. A specific structure of the hooking pawl 10 will be described in detail with reference to fig. 2 to 5.
The main body case 20 has a reel structure (not shown) therein, and is a housing that winds the band portion 30 by the reel structure and accommodates the band portion. An opening is formed in a part of the main body case 20, and the tape unit 30 is fed and wound through the opening. Various mechanisms such as a stopper for operating the tape measure are provided inside and outside the main body case 20.
The band portion 30 is an elongated member having scales, and has a hook claw 10 attached to one end thereof and the other end thereof fixed to the inside of the main body case 20. The material constituting the band portion 30 is not limited as long as it has flexibility, and paper, cloth, resin, metal, or the like can be used.
Fig. 2 is a schematic perspective view showing the configuration of the hook claw 10. Fig. 3 is a schematic front view showing the configuration of the hooking claw 10. Fig. 4 is a schematic side view showing the configuration of the hooking pawl 10. Fig. 5 is a schematic plan view showing the configuration of the hook claw 10. In fig. 2 to 5, illustration of the belt portion 30 to which the hooking pawl 10 is attached is omitted.
As shown in fig. 2, the hooking pawl 10 has a pawl portion 11, a tape holding portion 12, and a clamping piece 13. A base sheet 14 is provided in a part of the main body case 20. A plurality of slide holes 12a are formed in the tape holding portion 12, and slide pins 15 are inserted into the slide holes 12a and fixed to the clamping pieces 13. Further, a fixing pin 16 is fixed to the clamping piece 13, and the clamping piece 13 and the band portion 30 are fixed by the fixing pin 16.
The pawl portion 11 is a plate-like portion formed integrally with the tape holding portion 12. The claw portion 11 is preferably made of a material having high flexural rigidity so as not to be easily deformed even when an impact is applied, and a metal material such as stainless steel is preferably used.
As shown in fig. 3, the claw portion 11 has a substantially rectangular shape in front view, and the corner portions are chamfered. The upper edge of the claw portion 11 forms a concave curved portion 11a, and is curved in a range of a curvature radius of 10mm to 20 mm. Further, a semicircular recess 11b is formed substantially at the center of the lower side of the claw portion 11. Further, no hole penetrating in the thickness direction is formed in the surface of the claw portion 11, and a flat and imperforate plate is configured. By making the nail portion 11 non-porous, the bending rigidity of the nail portion 11 can be further increased, and deformation due to impact can be prevented.
As shown in fig. 4, the claw portion 11 is a portion that stands at a predetermined angle with respect to the extending direction of the band portion 30, and has a thickness D in a range of 1.3mm to 3 mm. Here, the predetermined angle means that the inner side or the outer side of the claw portion 11 is a zero position of the scale of the band portion 30 with respect to the extending direction in the state where the band portion 30 is pulled out by 90 degrees. When the thickness D of the claw portion 11 is less than 1.3mm, the deformation prevention of the claw portion 11 is insufficient because the value of the bending rigidity is low, and when the thickness D is 3.0mm or more, the weight increases and the measurement accuracy is lowered, which is not preferable. The thickness D of the claw part 11 is most preferably 1.5 mm. Specific dimensions of the claw portion 11 are not limited, and examples thereof include a dimension in the width direction of 23.5mm, a dimension in the height direction of 15mm, a thickness D of 1.5mm, and a radius of curvature of the curved portion 11a of 15.5mm in fig. 3. In this case, the ratio of the thickness D, the height, and the width of the pawl portion 11 is 3: 30: 47. in addition, the ratio of the thickness D of the claw portion 11 to the thickness of the band portion 30 is in the range of 1: 11-1: 14, or a combination thereof.
The tape holding portion 12 is a plate-like portion integrally formed of the same material as the pawl portion 11. As shown in fig. 2 to 4, the band holding portion 12 is formed by being bent along the curved portion 11a of the claw portion 11 and extending in the extending direction of the band portion 30. Therefore, similarly to the curved portion 11a of the claw portion 11, the band holding portion 12 is also curved in the width direction of the band portion 30 in a range of a curvature radius of 10mm or more and 20mm or less. Here, the extending direction of the belt portion 30 refers to the left-right direction in fig. 4. By forming the band holding portion 12 integrally with the pawl portion 11 and bending in the width direction, deformation can be prevented even in the case where the strength of the flat pawl portion 11 is increased and an impact is applied.
The nipping piece 13 is a thin plate-like member disposed on the lower surface side of the tape holding portion 12, and holds the tape portion 30 (not shown) between the tape holding portion 12 and the nipping piece 13. Therefore, the band portion 30 is also held in a state of being bent in the width direction with the same curvature radius as the band holding portion 12 and the nipping piece 13. As shown in fig. 4 and 5, one end of the nipping piece 13 is disposed so as to partially overlap the tape holding portion 12, and a slide pin 15 is provided so as to penetrate therethrough.
The base sheet 14 is a substantially rectangular plate-like member disposed inside the main body case 20. In the example shown in fig. 1 and 2, the base piece 14 and the clamping piece 13 are partially overlapped with each other in a state where the band portion 30 is entirely wound and stored in the main body case 20 and only the claw portion 11 of the hook claw 10 is exposed from the main body case 20. The base sheet 14 functions as a guide portion for supporting the lower surface side of the belt portion 30 during the feeding and winding operations of the belt portion 30.
The slide pin 15 is inserted into the slide hole 12a and penetrates the band 30 and the holding piece 13, and is a rivet that mechanically fixes the band 30 and the holding piece 13 by pressing the lower end portion. The diameter of the slide pin 15 is set to be substantially the same as the width of the slide hole 12a, and movement of the band portion 30 in the width direction is restricted. The fixing pin 16 is a member for fixing the clamping piece 13 and the band part 30.
As shown in fig. 5, the slide hole 12a is a plurality of holes provided in the tape holding portion 12. The width of the slide hole 12a is set to be substantially the same as the outer diameter of the cylindrical portion of the slide pin 15, and the length in the extending direction of the belt portion 30 is formed to be larger than the width. Therefore, the slide pin 15 inserted into the slide hole 12a is restricted from moving in the width direction (vertical direction in fig. 5), but is slidable in the longitudinal direction (horizontal direction in fig. 5).
When stainless steel is used as the claw portion 11 of the present embodiment, the plate-like nonporous thickness is 1.5mm, and the radius of curvature of the curved portion 11a is 15.5mm, the flexural rigidity is improved by 7.2 times as compared with the case where the locking hole is formed and the thickness is 0.85mm in the conventional art. Therefore, even if an impact is applied to the claw portion 11, the deformation can be prevented well, and accurate measurement can be performed. Further, by forming the claw portion 11 of a flat and imperforate plate, deformation of the claw portion 11 can be further prevented. Further, by bending the tape holding portion 12 in a range of a curvature radius of 9mm or more and 15mm or less, deformation of the claw portion 11 can be further prevented.
The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention.
Claims (5)
1. A tape measure, comprising:
a graduated strip portion; and
a claw portion provided at a leading end of the band portion and erected at a given angle with respect to an extending direction of the band portion,
the thickness of the claw part is in the range of 1.3mm to 3 mm.
2. The tape measure of claim 1,
the given angle is 90 degrees.
3. A tape measure according to claim 1 or 2,
the claw portion is constituted by a flat and imperforate plate.
4. A tape measure according to claim 1 or 2,
the tape measure includes a tape holding portion that is formed integrally with the claw portion and that extends in the extending direction to hold the tape portion,
the belt holding portion is curved in a range of a curvature radius of 9mm or more and 15mm or less.
5. A tape measure according to claim 3,
the tape measure includes a tape holding portion that is formed integrally with the claw portion and that extends in the extending direction to hold the tape portion,
the belt holding portion is curved in a range of a curvature radius of 9mm or more and 15mm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548433.5U CN210293007U (en) | 2019-09-18 | 2019-09-18 | Measuring tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548433.5U CN210293007U (en) | 2019-09-18 | 2019-09-18 | Measuring tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210293007U true CN210293007U (en) | 2020-04-10 |
Family
ID=70063461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921548433.5U Active CN210293007U (en) | 2019-09-18 | 2019-09-18 | Measuring tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210293007U (en) |
-
2019
- 2019-09-18 CN CN201921548433.5U patent/CN210293007U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |