US20160029747A1 - Ring diameter variator for ring-shaped accessory - Google Patents

Ring diameter variator for ring-shaped accessory Download PDF

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Publication number
US20160029747A1
US20160029747A1 US14/783,513 US201314783513A US2016029747A1 US 20160029747 A1 US20160029747 A1 US 20160029747A1 US 201314783513 A US201314783513 A US 201314783513A US 2016029747 A1 US2016029747 A1 US 2016029747A1
Authority
US
United States
Prior art keywords
reel
ring
variator
shaped accessory
cutouts
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.)
Abandoned
Application number
US14/783,513
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English (en)
Inventor
Toshiaki Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEMINGTON Co Ltd
Original Assignee
LEMINGTON Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LEMINGTON Co Ltd filed Critical LEMINGTON Co Ltd
Assigned to LEMINGTON CO., LTD. reassignment LEMINGTON CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TANAKA, TOSHIAKI
Publication of US20160029747A1 publication Critical patent/US20160029747A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/0053—Flexible straps
    • A44C5/0069—Flexible straps extensible
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C15/00—Other forms of jewellery
    • A44C15/0045—Jewellery specially adapted to be worn on a specific part of the body not fully provided for in groups A44C1/00 - A44C9/00
    • A44C15/005—Necklaces
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C25/00—Miscellaneous fancy ware for personal wear, e.g. pendants, crosses, crucifixes, charms

Definitions

  • the present invention relates to an improvement of a ring diameter variator for a ring-shaped accessory, the ring diameter variator being connected between one end and the other end of the ring-shaped accessory such as a necklace or a bracelet so as to make the ring diameter of the ring-shaped accessory variable.
  • Patent Document 1 Japanese Patent Application Laid-open No. 2001-252113
  • the present invention has been accomplished in light of such circumstances, and it is an object thereof to provide a ring diameter variator for a ring-shaped accessory that enables sufficient enlargement of ring diameter and that has a good appearance.
  • a ring diameter variator for a ring-shaped accessory that is connected between one end and the other end of the ring-shaped accessory to make the ring diameter of the ring-shaped accessory variable, characterized in that the variator comprises a case that has first and second pull-out ports in opposite end parts, a reel that is rotatably housed within the case, first and second adjustment straps that are each wound up in the same direction by the reel and pulled outward through the first and second pull-out ports and that are connected to one end and the other end of the ring-shaped accessory, and a spiral spring that rotatingly urges the reel in a wind-up direction of the first and second adjustment straps.
  • the spiral spring is housed in a cylindrical spring chamber formed in an interior of the reel.
  • a fixed shaft extending through the spring chamber is fixedly supported on the case, a flat face is formed on one side of the fixed shaft, a slit opens on the flat face, an inner end portion of the spiral spring is bent in the radially inward direction while being rounded and is engaged with the slit, and a rounded bent portion of the inner end portion is disposed in a crescent-shaped space formed between the flat face and an inner peripheral face of the spiral spring wound around the fixed shaft.
  • first and second cutouts are provided in first and second reel flanges provided at opposite ends of the reel, first and second channels communicating with the first and second cutouts are formed in outer end faces of the first and second reel flanges, and inner end portions of the first and second adjustment straps are run respectively through the first and second cutouts, housed in the first and second channels, and adhered thereto.
  • the ring diameter variator includes the case that has the first and second pull-out ports in opposite end parts, the reel that is rotatably housed within the case, the first and second adjustment straps that are each wound up in the same direction by the reel and pulled outward through the first and second pull-out ports and that are connected to one end and the other end of the ring-shaped accessory, and the spiral spring that rotatingly urges the reel in the wind-up direction of the first and second adjustment straps, the total amount of the first and second adjustment straps pulled out corresponds to twice the number of rotations of the reel, and it is possible with a sufficient total amount of the first and second adjustment straps pulled out to sufficiently increase the ring diameter of the ring-shaped accessory, thus enabling it to be easily put on the neck, etc.
  • the case housing same can also be made compact, and not only does the ring-shaped accessory have a good appearance, but it is also possible to use the case as a fashionable pendant.
  • the spiral spring since the spiral spring is housed in the cylindrical spring chamber formed in the interior of the reel, dead space in the interior of the reel can be utilized for placement of the spiral spring, and it is possible to prevent the case from being increased in dimensions due to placement of the spiral spring, thus making the case more compact.
  • the flat face is formed on one side of the fixed shaft, the slit opens on the flat face, the inner end portion of the spiral spring is bent in the radially inward direction while being rounded and is engaged with the slit, and the rounded bent portion of the inner end portion is disposed in the crescent-shaped space formed between the flat face and the inner peripheral face of the spiral spring wound around the fixed shaft, even when the spiral spring is wound around the outer periphery of the fixed shaft, it is possible to avoid effectively a load being concentrated on the bent portion of the inner end portion of the spiral spring, thus preventing the bent portion from breaking and thereby enhancing the durability of the spiral spring.
  • the first and second channels communicating with the first and second cutouts are formed in the outer end faces of the first and second reel flanges, and the respective inner end portions of the first and second adjustment straps run through the first and second cutouts, are housed in the first and second channels, and adhered, the respective inner end portions of the first and second adjustment straps are connected in a state in which they are embedded in the reel, and it is possible to prevent peeling off due to interference with adjacent components, thus enhancing the durability of the first and second adjustment straps, and thereby making it possible to wind in the first and second adjustment straps neatly into the reel groove without interfering with the inner end portions.
  • FIG. 1 is a front view showing a necklace equipped with the ring diameter variator of the present invention in a state in which it has been put on a user. (first embodiment)
  • FIG. 2 is a view, corresponding to FIG. 1 , showing the process via which the necklace is put on a user. (first embodiment)
  • FIG. 3 is a longitudinal enlarged front view of the ring diameter variator showing a state in which first and second adjustment straps are wound in. (first embodiment)
  • FIG. 4 is a view, corresponding to FIG. 3 , showing a state in which the first and second adjustment straps are pulled out. (first embodiment)
  • FIG. 5 is a sectional view along line 5 - 5 in FIG. 3 . (first embodiment)
  • FIG. 6 is a sectional view along line 6 - 6 in FIG. 5 . (first embodiment)
  • FIG. 7 is a sectional view along line 7 - 7 in FIG. 3 . (first embodiment)
  • FIG. 8 is a sectional view along line 8 - 8 in FIG. 3 . (first embodiment)
  • FIG. 9 is a sectional view along line 9 - 9 in FIG. 3 . (first embodiment)
  • a necklace 1 as a ring-shaped accessory has a first joint 1 a and a second joint 1 b at one end and the other end thereof, and a ring diameter variator 2 that can adjust the ring diameter of the necklace 1 is connected between the first and second joints 1 a and 1 b.
  • the ring diameter variator 2 is formed from a case 3 , a reel 4 that is housed in the case 3 , first and second adjustment straps 5 a and 5 b that are wound up by the reel 4 , and a spiral spring 6 that rotatingly urges the reel 4 in the wind-up direction of the first and second adjustment straps 5 a and 5 b.
  • the rotational direction of the reel 4 for winding up the adjustment straps 5 a and 5 b is called a wind-up direction A, and the rotational direction opposite thereto is called a pull-out direction B.
  • the case 3 is formed from first and second case half bodies 3 a and 3 b whose open faces on end faces thereof abut against each other, and has an eye shape when viewed from the front.
  • a plurality of positioning bosses 7 are formed on the abutment face of the first case half body 3 a
  • a plurality of positioning projections 8 are formed on the abutment face of the second case half body 3 b
  • the two case half bodies 3 a and 3 b are joined by press fitting the positioning bosses 7 and the positioning projections 8 .
  • the press-fitted parts may be coated with an adhesive.
  • First and second bearing bosses 10 a and 10 b opposing each other across a gap are formed integrally with central parts of the first and second case half bodies 3 a and 3 b, and the reel 4 is rotatably supported on outer peripheral faces of the first and second bearing bosses 10 a and 10 b.
  • This reel 4 has at opposite ends first and second reel flanges 12 a and 12 b defining an annular reel groove 11 on the outer periphery, and a pair of first and second adjustment straps 5 a and 5 b are wound around the reel groove 11 as follows.
  • the first reel flange 12 a is provided with a first cutout 14 a, a first channel 15 a communicating with the first cutout 14 a is formed in an outer end face of the first reel flange 12 a, and an inner end portion 5 a 1 of the first adjustment strap 5 a runs through the first cutout 14 a, is housed in the first channel 15 a, and is adhered with an adhesive 13 .
  • the second reel flange 12 b is provided with a second cutout 14 b at a position symmetrical to the first cutout 14 a, a second channel 15 b communicating with the second cutout 14 b is formed in an outer end face of the second reel flange 12 b, and an inner end portion 5 b 1 of the second adjustment strap 5 b runs through the second cutout 14 b, is housed in the second channel 15 b, and is adhered with an adhesive 13 .
  • first and second adjustment straps 5 a and 5 b having the respective inner end portions 5 a 1 and 5 b 1 connected to the first and second reel flanges 12 a and 12 b are wound in the same direction on the reel groove 11 , and connecting terminals 5 a 2 and 5 b 2 at outer end parts thereof are pulled outward from first and second pull-out ports 9 a and 9 b provided at opposite ends of the case 3 (see FIG. 3 and FIG. 9 ) and are connected to the first and second joints 1 a and 1 b respectively.
  • hollow parts of the bearing bosses 10 a and 10 b serve as segment-shaped support holes 17 and 17 , and opposite end parts of a fixed shaft 19 extending through a cylindrical spring chamber 18 in the interior of the reel 4 are fixedly supported by the support holes 17 and 17 .
  • This fixed shaft 19 has a cross section corresponding to the cross section of the segment-shaped support holes 17 and 17 . That is, it has a flat face 19 a on one side face, and a slit 20 is provided in the fixed shaft 19 so as to open on the flat face 19 a.
  • This slit 20 is formed throughout the entire length of a portion, excluding the one end part supported on one bearing boss 10 a or 10 b.
  • the spiral spring 6 is housed in the cylindrical spring chamber 18 in the interior of the reel 4 .
  • an inner end portion 6 a of the spiral spring 6 is bent in a radially inward direction and is latched into the slit 20 of the fixed shaft 19 , a bent portion 6 a 1 thereof is rounded and disposed in the region of the flat face 19 a, and the rounded bent portion 6 a 1 is thereby disposed in a crescent-shaped space 21 formed between the flat face 19 a and an inner peripheral face of the spiral spring 6 wound around the fixed shaft 19 (see FIG. 4 ).
  • An outer end portion 6 b of the spiral spring 6 is bent in a radially outward direction as a hook shape and is latched into a slit 22 provided in the reel 4 .
  • the spiral spring 6 is arranged so that the resilient force in its expansion direction rotatingly urges the reel 4 in the wind-up direction A for the first and second adjustment straps 5 a and 5 b.
  • the spiral spring 6 usually expands to rotate the reel 4 in the wind-up direction A and make the first and second adjustment straps 5 a and 5 b be wound in into the reel groove 11 of the reel 4 , thus holding the first and second joints 1 a and 1 b of the necklace 1 at the positions of the first and second pull-out ports 9 a and 9 b of the case 3 , and at this time the necklace 1 is in a state in which the ring diameter is a minimum.
  • the spiral spring 6 makes the reel 4 rotate in the wind-up direction B by virtue of the accumulated expansion force, and the reel 4 winds in the first and second adjustment straps 5 a and 5 b into the reel groove 11 at the same time, thereby making the ring diameter of the necklace 1 its usual minimum diameter.
  • the ring diameter variator 2 of the present invention includes the case 3 that has the first and second pull-out ports 9 a and 9 b in opposite end parts, the reel 4 that is rotatably housed within the case 3 , the first and second adjustment straps 5 a and 5 b that are each wound up in the same direction by the reel 4 and pulled outward through the first and second pull-out ports 9 a and 9 b and that are connected to one end and the other end of the necklace 1 , and the spiral spring 6 that rotatingly urges the reel 4 in the wind-up direction A of the first and second adjustment straps 5 a and 5 b, the total amount of the first and second adjustment straps 5 a and 5 b pulled out corresponds to twice the number of rotations of the reel 4 , and it is possible with a sufficient total amount of the first and second adjustment straps 5 a and 5 b pulled out to sufficiently increase the ring diameter of the necklace 1 , thus enabling it to be easily put on the neck N of the user U.
  • the number of rotations of the reel 4 can be halved, the amount of the spiral spring 6 wound in is also halved, and the durability can be enhanced effectively.
  • the case 3 housing same is also circular or nearly so and compact, and not only does the necklace 1 have a good appearance, but it is also possible to use the case 3 as a fashionable pendant.
  • the spiral spring 6 is housed in the cylindrical spring chamber 18 formed in the interior of the reel 4 , dead space in the interior of the reel 4 can be utilized for placement of the spiral spring 6 , and it is possible to prevent the case 3 from being increased in dimensions due to placement of the spiral spring 6 , thus making the case 3 more compact.
  • the flat face 19 a is formed on one side of the fixed shaft 19 , the slit 20 opens on the flat face 19 a, the inner end portion 6 a of the spiral spring 6 is bent in the radially inward direction while being rounded and is engaged with the slit 20 , and the rounded bent portion 6 a 1 of the inner end portion 6 a is disposed in the crescent-shaped space 21 formed between the flat face 19 a and the inner peripheral face of the spiral spring 6 wound around the fixed shaft 19 , even when the spiral spring 6 is wound around the outer periphery of the fixed shaft 19 , it is possible to avoid effectively a load being concentrated on the bent portion 6 a 1 , thus preventing the bent portion 6 a 1 from breaking and thereby enhancing the durability of the spiral spring 6 .
  • the first and second cutouts 14 a and 14 b are provided in the first and second reel flanges 12 a and 12 b provided at opposite ends of the reel 4 , the first and second channels 15 a and 15 b communicating with the first and second cutouts 14 a and 14 b are provided in the outer end faces of the first and second reel flanges 12 a and 12 b, and the respective inner end portions 5 a 1 and 5 b 1 of the first and second adjustment straps 5 a and 5 b run through the first and second cutouts 14 a and 14 b, are housed in the first and second channels 15 a and 15 b, and adhered, the respective inner end portions 5 a 1 and 5 b 1 of the first and second adjustment straps 5 a and 5 b are connected in a state in which they are embedded in the reel 4 , and it is possible to prevent peeling off due to interference with adjacent components, thus enhancing the durability of the first and second adjustment straps 5 a and 5 b, and thereby making it
  • the present invention is not limited to the above embodiment and may be modified in a variety of ways as long as the modifications do not depart from the spirit and scope thereof.
  • the ring diameter variator of the present invention may be applied to a bracelet.
  • the case 3 may be formed into a polygon.
  • the first and second adjustment straps 5 a and 5 b silkworm gut or a chain may be used.

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  • Adornments (AREA)
US14/783,513 2013-04-12 2013-08-19 Ring diameter variator for ring-shaped accessory Abandoned US20160029747A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013083830A JP2014204833A (ja) 2013-04-12 2013-04-12 リング状装身具のリング径可変装置
JP2013-083830 2013-04-12
PCT/JP2013/072072 WO2014167739A1 (ja) 2013-04-12 2013-08-19 リング状装身具のリング径可変装置

Publications (1)

Publication Number Publication Date
US20160029747A1 true US20160029747A1 (en) 2016-02-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US14/783,513 Abandoned US20160029747A1 (en) 2013-04-12 2013-08-19 Ring diameter variator for ring-shaped accessory

Country Status (6)

Country Link
US (1) US20160029747A1 (ja)
EP (1) EP2984963A4 (ja)
JP (1) JP2014204833A (ja)
KR (1) KR20150141995A (ja)
CN (1) CN105228483A (ja)
WO (1) WO2014167739A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107582186A (zh) * 2017-09-06 2018-01-16 洛阳市妇女儿童医疗保健中心 一种特殊儿童专用腕带

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2916897B2 (ja) * 1996-08-07 1999-07-05 有限会社 みぞべ ネックレス及びブレスレット用止め具
JP2001252113A (ja) 2000-03-09 2001-09-18 Funakura Masaki リング状装身具の伸縮部材及び同部材を備えたリング状装身具
DE102006024538A1 (de) * 2006-05-23 2007-11-29 Bos Gmbh & Co. Kg Rollo mit geräuschfreiem Spiralfederantrieb
JP2008093006A (ja) * 2006-10-06 2008-04-24 Shoji Kinoshita 紐状装身具用の留め具
KR20110065844A (ko) * 2009-12-10 2011-06-16 김종팔 길이 가변형 와이어 자물쇠
DE102011075911A1 (de) * 2011-05-16 2012-11-22 Robert Bosch Gmbh Spiralfeder
JP2013118891A (ja) * 2011-12-06 2013-06-17 Reminton:Kk リング状装身具のリング径可変装置
CN202495651U (zh) * 2012-02-27 2012-10-17 江苏省电力公司太仓市供电公司 自动收缩式线盘
CN202612509U (zh) * 2012-03-27 2012-12-19 帖荣俊 一种带传动弹性张紧装置
CN102879902B (zh) * 2012-10-08 2014-10-22 同济大学 采用凸轮驱动的摆镜机构

Also Published As

Publication number Publication date
EP2984963A4 (en) 2016-09-28
JP2014204833A (ja) 2014-10-30
KR20150141995A (ko) 2015-12-21
EP2984963A1 (en) 2016-02-17
WO2014167739A1 (ja) 2014-10-16
CN105228483A (zh) 2016-01-06

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Date Code Title Description
AS Assignment

Owner name: LEMINGTON CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TANAKA, TOSHIAKI;REEL/FRAME:036923/0048

Effective date: 20151027

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION