JPH0334641Y2 - - Google Patents
Info
- Publication number
- JPH0334641Y2 JPH0334641Y2 JP12142181U JP12142181U JPH0334641Y2 JP H0334641 Y2 JPH0334641 Y2 JP H0334641Y2 JP 12142181 U JP12142181 U JP 12142181U JP 12142181 U JP12142181 U JP 12142181U JP H0334641 Y2 JPH0334641 Y2 JP H0334641Y2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- scale
- coil spring
- insertion opening
- tape measure
- 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
Links
- 230000037431 insertion Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Tape Measures (AREA)
Description
【考案の詳細な説明】
この考案はスケールを引出す際に巻ばねを巻回
し、該巻ばねの復元力によりスケールを巻戻すよ
うにした巻尺の改良に関するものである。[Detailed Description of the Invention] This invention relates to an improvement of a tape measure in which a coil spring is wound when the scale is pulled out, and the scale is unwound by the restoring force of the coil spring.
従来のこの種巻尺のドラムの周側面に設けた角
孔に巻ばねの頚部を係止させ、ドラムより外方に
突出した巻ばね先端にスケールの基端を接続した
ものである。従つてドラムにスケールを巻戻す際
に巻ばねの突出先端によつてスケールが外方に押
されて真円状に巻回することができない。又スケ
ールからスケールを基端まで一ぱいに引出した
際、巻ばねの突出先端がスケールによりドラムに
対して略直角に引張られるため頚部が折曲けられ
折損する等の欠点があつた。 In this type of conventional tape measure, the neck of the coil spring is engaged with a square hole provided on the circumferential side of the drum, and the base end of the scale is connected to the tip of the coil spring that projects outward from the drum. Therefore, when the scale is unwound onto the drum, the scale is pushed outward by the protruding tip of the winding spring and cannot be wound in a perfect circle. Further, when the scale is pulled out from the scale all the way to the base end, the protruding tip of the coil spring is pulled by the scale at a substantially right angle to the drum, resulting in the neck being bent and broken.
この考案は前記従来の欠点を解消したもので、
ドラム周側にスケールを真円状に巻回でき、しか
も巻ばね及びスケールの頚部に無理な力が作用し
ないようにし、耐久性に優れた巻尺を提供するこ
とを目的としている。 This idea eliminates the above-mentioned conventional drawbacks,
To provide a tape measure with excellent durability, capable of winding a scale in a perfect circle on the circumferential side of a drum, and preventing excessive force from acting on a winding spring and the neck of the scale.
しかしてこの考案はスケール１を巻付けたドラ
ム２に巻ばね３を作用させ、ケース４よりスケー
ルを引出す際に前記巻ばね３を巻回しその復元力
によりドラム２を逆転させてスケール１を巻戻す
ようにした巻尺において、前記ドラム２の周側面
２′に巻ばね３の挿通口５を開設すると共に該挿
通口５の左右両側縁の後半部に突設した係止片
６，６に巻ばね３の先端附近に設けた頚部７を係
止させかつドラム２より外方に突出した巻ばね先
端３′を挿通口５から再びドラム２内に挿込んで
周側内面に係止させ、さらにドラム周側面２′の
前記挿通口５より前側に穿設した係合孔８に前記
スケール１の基端に設けた頚部９を係止させたこ
とを特徴とする巻尺である。尚図中の符号１０は
ケース４に設けた支軸で、該支軸１０にドラム２
の中心に設けた軸孔１１を嵌合させ、支軸１０に
設けたスリツト１２に巻ばね３の基端を係止させ
たものである。又図示の実施例においては前記係
止片６を挿通口５の左両側縁後半部のドラム内側
に突設したもので、巻ばね３の頚部７は前記係止
片６上に接し、なだらかに案内されてドラム２内
に巻込まれるようにしたものである。 However, in this device, a coil spring 3 is applied to the drum 2 on which the scale 1 is wound, and when the scale is pulled out from the case 4, the coil spring 3 is wound and the drum 2 is reversed by its restoring force, and the scale 1 is wound. In the tape measure designed to be returned, an insertion opening 5 for the coil spring 3 is provided on the circumferential side 2' of the drum 2, and the coil spring 3 is wound around locking pieces 6, 6 provided protruding from the rear half of the left and right edges of the insertion opening 5. The neck portion 7 provided near the tip of the spring 3 is locked, and the coil spring tip 3' protruding outward from the drum 2 is inserted into the drum 2 again through the insertion opening 5 and locked on the circumferential inner surface. This tape measure is characterized in that a neck 9 provided at the base end of the scale 1 is engaged with an engagement hole 8 formed in front of the insertion opening 5 in the peripheral side surface 2' of the drum. The reference numeral 10 in the figure is a support shaft provided in the case 4, and the drum 2 is attached to the support shaft 10.
A shaft hole 11 provided at the center of the support shaft 10 is fitted into the shaft hole 11, and the base end of the coiled spring 3 is engaged with a slit 12 provided in the support shaft 10. Further, in the illustrated embodiment, the locking piece 6 is provided protruding inside the drum at the rear half of the left side edge of the insertion opening 5, and the neck 7 of the coiled spring 3 is in contact with the locking piece 6 and gently curves. It is designed to be guided and rolled into the drum 2.
この考案は以上のように巻ばね３の先端附近に
設けた頚部７を挿通口５の左右両側縁の後半部に
突設した係止片６，６に係止させ、ドラム２より
突出した巻ばね先端３′を挿通口５から再びドラ
ム２内に挿込んで周側内面に係止させてあるの
で、スケール１をドラム２に真円状に巻取ること
ができる、しかも巻ばね３の先端３′をドラム内
に係止させたことにより巻回された巻ばね３が復
元し易くなり復元力も強くなるので巻ばね３が有
効に作用する等の効果を奏し巻ばね３が従来より
短かくて事足りるので経済的である。そして又巻
ばね及びスケールの頚部に無理な力が作用しない
ので折損する虞れがなく耐用期間が著しく増進す
る。 In this invention, as described above, the neck 7 provided near the tip of the coiled spring 3 is locked to the locking pieces 6, 6 provided protruding from the rear half of the left and right edges of the insertion opening 5, and the coiled spring 3 protrudes from the drum 2. Since the spring tip 3' is inserted into the drum 2 again through the insertion port 5 and locked on the inner circumferential surface, the scale 1 can be wound around the drum 2 in a perfect circle, and the tip of the coiled spring 3 By locking the coil spring 3' in the drum, the coil spring 3 is easily restored and the restoring force is strong, so that the coil spring 3 acts effectively, and the coil spring 3 is shorter than before. It is economical because it is sufficient. Furthermore, since no excessive force is applied to the neck of the coiled spring and scale, there is no risk of breakage, and the service life is significantly extended.
図面はこの考案に係る巻尺の一実施例を示した
もので、第１図は縦断正面図、第２図はケースか
らドラムを取出した状態を示す拡大側面図、第３
図は同上の横断面図、第４図はドラムの側面図、
第５図は同上の縦断面図である。
１……スケール、２……ドラム、２′……周側
面、３……巻ばね、３′……先端、４……ケース、
５……挿通口、６……係止片、７，９……頚部、
８……係合孔。
The drawings show one embodiment of the tape measure according to this invention, in which Fig. 1 is a vertical front view, Fig. 2 is an enlarged side view showing the drum removed from the case, and Fig. 3 is an enlarged side view showing the drum taken out from the case.
The figure is a cross-sectional view of the same as above, and Figure 4 is a side view of the drum.
FIG. 5 is a longitudinal sectional view of the same as above. 1... Scale, 2... Drum, 2'... Circumferential side, 3... Coiled spring, 3'... Tip, 4... Case,
5... Insertion port, 6... Locking piece, 7, 9... Neck,
8...Engagement hole.
Claims (1)
用させ、ケース４よりスケールを引出す際に前記
巻ばね３を巻回し、その復元力によりドラム２を
逆転させてスケール１を巻戻すようにした巻尺に
おいて、前記ドラム２の周側面２′に巻ばね３の
挿通口５を開設すると共に該挿通口５の左右両側
縁後半部にドラム内側に突出する係止片６，６を
突設し、この係止片６，６に巻ばね３の先端附近
に設けた頚部７を係止させ、かつドラム２より外
側に突出した巻ばね先端３′を挿通口５から再び
ドラム２内に挿込んで周側内面に係止させ、さら
にドラム周側面２′の前記挿通口５より前側に係
合孔８を穿設し、この係合孔８に前記スケール１
の基端に設けた頚部９を係止させたことを特徴と
する巻尺。 A coil spring 3 is applied to the drum 2 around which the scale 1 is wound, and when the scale is pulled out from the case 4, the coil spring 3 is wound, and its restoring force reverses the drum 2 to unwind the scale 1. In the tape measure, an insertion opening 5 for the coil spring 3 is provided on the circumferential side 2' of the drum 2, and locking pieces 6, 6 protruding inward from the drum are provided on the rear half of both left and right edges of the insertion opening 5, The neck portion 7 provided near the tip of the coil spring 3 is locked to the locking pieces 6, 6, and the tip 3' of the coil spring protruding outward from the drum 2 is inserted into the drum 2 again through the insertion opening 5. The scale 1 is engaged with the inner circumferential surface of the drum, and an engagement hole 8 is formed in front of the insertion opening 5 in the circumferential side surface 2' of the drum.
A tape measure characterized by a neck 9 provided at the base end of the tape measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12142181U JPS5827701U (en) | 1981-08-18 | 1981-08-18 | tape measure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12142181U JPS5827701U (en) | 1981-08-18 | 1981-08-18 | tape measure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5827701U JPS5827701U (en) | 1983-02-22 |
| JPH0334641Y2 true JPH0334641Y2 (en) | 1991-07-23 |
Family
ID=29915357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12142181U Granted JPS5827701U (en) | 1981-08-18 | 1981-08-18 | tape measure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11714885B2 (en) | 2016-07-11 | 2023-08-01 | Visa International Service Association | Encryption key exchange process using access device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4972333B2 (en) * | 2006-04-11 | 2012-07-11 | 株式会社ケイディエス | Tape measure |
-
1981
- 1981-08-18 JP JP12142181U patent/JPS5827701U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11714885B2 (en) | 2016-07-11 | 2023-08-01 | Visa International Service Association | Encryption key exchange process using access device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5827701U (en) | 1983-02-22 |
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