GB2379237B - Spring balance adjustment - Google Patents

Spring balance adjustment

Info

Publication number
GB2379237B
GB2379237B GB0120764A GB0120764A GB2379237B GB 2379237 B GB2379237 B GB 2379237B GB 0120764 A GB0120764 A GB 0120764A GB 0120764 A GB0120764 A GB 0120764A GB 2379237 B GB2379237 B GB 2379237B
Authority
GB
United Kingdom
Prior art keywords
component
spring balance
rotate
components
balance adjustment
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 - Fee Related
Application number
GB0120764A
Other versions
GB0120764D0 (en
GB2379237A (en
Inventor
Mike Derham
Michael John Hawker
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.)
Mighton Products Ltd
Original Assignee
Mighton Products 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 Mighton Products Ltd filed Critical Mighton Products Ltd
Priority to GB0120764A priority Critical patent/GB2379237B/en
Publication of GB0120764D0 publication Critical patent/GB0120764D0/en
Publication of GB2379237A publication Critical patent/GB2379237A/en
Application granted granted Critical
Publication of GB2379237B publication Critical patent/GB2379237B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1207—Counterbalance devices with springs with tension springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/148—Windows

Abstract

To adjust the tension in a sash window spring balance, a first component 40 is mounted on the sash, and a second component 50,52 is mounted on the bottom end of the spring balance spiral rod 34. The first and second components have mating faces with ratchet teeth 62 arranged around an annulus centred around the spiral rod, so that when the rod is in tension pulling the first and second components against one another, the components can only rotate in one direction, and when they do rotate, there is a click produced each time the ratchet teeth ride over one another. A socket 66 in the base of the second component allows for a tool 64 to be inserted to rotate the component.
GB0120764A 2001-08-25 2001-08-25 Spring balance adjustment Expired - Fee Related GB2379237B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0120764A GB2379237B (en) 2001-08-25 2001-08-25 Spring balance adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0120764A GB2379237B (en) 2001-08-25 2001-08-25 Spring balance adjustment

Publications (3)

Publication Number Publication Date
GB0120764D0 GB0120764D0 (en) 2001-10-17
GB2379237A GB2379237A (en) 2003-03-05
GB2379237B true GB2379237B (en) 2005-01-12

Family

ID=9921042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0120764A Expired - Fee Related GB2379237B (en) 2001-08-25 2001-08-25 Spring balance adjustment

Country Status (1)

Country Link
GB (1) GB2379237B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6978515B2 (en) * 2003-09-25 2005-12-27 Meiko Co., Ltd. Balancing device of raising-lowering window
US8060984B2 (en) * 2009-02-25 2011-11-22 Caldwell Manufacturing Company North America LLC Device and method for improving the installation of pre-tensioned spiral balances in window balances
JP6898641B2 (en) * 2017-07-27 2021-07-07 中西産業株式会社 Spiral balance device
US11885162B2 (en) * 2022-02-18 2024-01-30 Nakanishi Industrial Co., Ltd. Counter balance device for a sash window

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622267A (en) * 1949-09-06 1952-12-23 Gen Bronze Corp Spring balancer
GB720858A (en) * 1952-03-31 1954-12-29 Dowell & Sons Proprietary Ltd Sash balance torsion adjusting means
US2792588A (en) * 1955-07-07 1957-05-21 Unique Balance Co Inc Adjustable foot mechanism for sash balances
US2890480A (en) * 1956-04-05 1959-06-16 Caldwell Mfg Co Sash balance
GB2262123A (en) * 1991-12-04 1993-06-09 Nakanishi Engineering Kk Sash window counter balance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622267A (en) * 1949-09-06 1952-12-23 Gen Bronze Corp Spring balancer
GB720858A (en) * 1952-03-31 1954-12-29 Dowell & Sons Proprietary Ltd Sash balance torsion adjusting means
US2792588A (en) * 1955-07-07 1957-05-21 Unique Balance Co Inc Adjustable foot mechanism for sash balances
US2890480A (en) * 1956-04-05 1959-06-16 Caldwell Mfg Co Sash balance
GB2262123A (en) * 1991-12-04 1993-06-09 Nakanishi Engineering Kk Sash window counter balance

Also Published As

Publication number Publication date
GB0120764D0 (en) 2001-10-17
GB2379237A (en) 2003-03-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060825