US1983856A - Spring counterbalance for vertically slidable doors - Google Patents

Spring counterbalance for vertically slidable doors Download PDF

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Publication number
US1983856A
US1983856A US56724331A US1983856A US 1983856 A US1983856 A US 1983856A US 56724331 A US56724331 A US 56724331A US 1983856 A US1983856 A US 1983856A
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US
United States
Prior art keywords
door
spring
pulleys
vertically slidable
ends
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 - Lifetime
Application number
Inventor
Clarence G Johnson
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.)
Overhead Door Corp
Original Assignee
Overhead Door Corp
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 Overhead Door Corp filed Critical Overhead Door Corp
Priority to US56724331 priority Critical patent/US1983856A/en
Application granted granted Critical
Publication of US1983856A publication Critical patent/US1983856A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00Suspension arrangements for wings
    • E05D15/16Suspension arrangements for wings for wings sliding vertically more or less in their own plane
    • E05D15/24Suspension arrangements for wings for wings sliding vertically more or less in their own plane consisting of parts connected at their edges
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10Counterbalance devices
    • E05D13/12Counterbalance devices with springs
    • E05D13/1207Counterbalance devices with springs with tension springs
    • E05D13/1215Counterbalance devices with springs with tension springs specially adapted for overhead wings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T16/00Miscellaneous hardware [e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.]
    • Y10T16/6298Sash balances
    • Y10T16/64Spring
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/50Special application
    • Y10T70/5093For closures
    • Y10T70/5155Door
    • Y10T70/5199Swinging door
    • Y10T70/5246Dead bolts
    • Y10T70/5248Multiple
    • Y10T70/5252Sliding and swinging

Description

Dec. 11, 1934. c. G.'JOHNSON 1,933,856

SPRING COUNTERBALANCE FOR VERTICALLY SLIDA BLE DOORS Filed Oct. 6, 1931 2 Sheets-Sheet l ATTO RNEYS Dec. 11, 1934, I Q JoHN soN Q 1,983,856

SPRING COUNTERBALANCE FOR VERTICALLY SLIDABLE DOORS Filed Oct. 6,-1931 v 2 Sheets-Sheet '2 C7are ce 6.1%.!0

ATTORNEYs Patented 11, 1934 uuiTso STATES PATENT oi -m1:

srnnvo COUNTERBALANCE son VERTICALLY SLIDABLE noons Clarence G. Johnson. Hartford City, Ind., s signor to Overhead Door Corporation, Hartford City, Ind., a corporation of Indiana Application October 6, 1931, Serial No. 567,243

2 Claims.

The present invention pertains to a novel spring counterbalance for vertically slidable doors particularly of the type composed of superimposed panels hinged together and movable from a substantially vertical track onto an upper horizontal track.

in constructions oi'this character, the spring counterbalance has previously consisted of two springs, one for each edge of the door, extending u ed interior.

These difluculties are overcome in the present invention by the use of a single spring lying preferably directly over the door opening and parallel to the upper edge of the door when in closed pcntion. Cables extend from the ends of the spring over pulleys to the ends of the door with the result that the single spring has a counterbslsncmg action on both ends of the door. The pulleys may be oi the simple or differential type and may be so arranged as to furnish any desired ratiobetween' thelength of door movement and the expansion or contraction of the spring.

The invention is fully disclosed by way of example in the following description and in the actem-.7 V... drawings-in which-- Figure l is an inside elevation of a door structure according to the invention;

Fig. 3 is a vertical transverse section thereof;

Fig. 3 is an inside elevation of a modified construction;

Fig. e is a section on the line t e of-Figure 1; and Y Fig. 5 is a detail of the locking mechanism.

Reference to these views will now bemade by use of like characters which are employed to designate corresponding parts throughout.

In figures 1 and 2 is shown a door frame 1 forming a door opening 2 adapted to be closed by means of a vertically slldable door consisting of superimposed panels 3 hinged together as at 4. The door frame 1 supports a pair of rails at the ends of the door opening, each rail having a substantially vertical portion 5 inclined slightly inwardly of the opening, and a horizontal portion 6, with an arcuate portion '7' between the parts 5 and 6. Certain of the hinges 8 joining the panels at the ends thereof extend inwardly and carry rollers 9 which ride in the rolls '1. The hinges8 are of progressively increasing length 'upwardly along the door to compensate for the inclination of the parts 5 of the rails.

The door is equipped with a counterbalancing system including a pair of double pulley blocks rotatably mounted on fixed pivot pins 10 over the door and preferably at the ends thereof. Each' block consists of a larger pulley 11 and a smaller pulley 12 having preferably half the radius of the larger pulley. Between the pulley blocks is provided an elongated coil spring 18 with plugs 14 at its ends. The support for the spring consists of cables .15 extending from the plugs 14 and wound on and secured to the respective adjacent smaller pulleys 12. Another pair of cables 16 are wound on and secured to the larger pulleys 11 and secured to the adjacent edges of the door, preferably at the lower ends as indicated by the numeral 17.

The locking mechanism for the door comprises adisk 1'8 rotatably mounted in the vertical center and at the inner side thereof. The disk is operable from either side of the door by handles 19 and 20 as'shown in Figure 4 Looking bars 21 have one end pivoted eccentrically to thedisk 18 and the other end receivable in slots 22 in the rails 5, after passing through supporting guides 23 carried by one of the panels 3. The disk has teeth 24 engageable by the bolt 25 of a lock 26 on the inner surface o'i the door, whereby the rods 21 may be secured in locked position. The bolt 25 may, however, be released by means of a suitable key inserted in a cylinder 27 accessible at the outer surface of the door. When the door is raised, the length of cable 15 spent out by each of the smaller pulleys 12 is obviously half as great as the'distance through which the door is raised. Inasmuch as the spring is active on two such cables, the contraction of thespring is equal linearly the distance through which the door is raised.

A rod or wire 28 is passed through the spring 13 and has its ends secured as at 29 to the sides of the door frame. In case the spring should break, the member 28 will prevent it from flying.

In themodification-shown in Figure 3, simple pulleys 30 are pivotally mounted on fixed pivot studs 31 over the door and preferably at the ends 01 the door opening. In this case there is also provided a single spring 32 lying preferably parallel to the upper edge 01' the demand between the pulleys 30. The ends of the springs carry plugs or brackets 33 in which are journalled pulleys 34 preferably of equal radius to the pulleys 30. In this .way there is provided a pair of pulleys at each end of the spring. A cable 35 is iii trained over each such pair end one end fixed as ct 36 to the door frame structure, 1 and the other end secured to the adjacent edge oi the door, preferably at the lower end thereof as indicoted hy'the numeral 3'7.

Due to the fact that each oi the cables 35 is. in two laps, each pulley 34.- moves inwardly or outwerdly r, distence equal to halt the distance through which the door is moved. Since the spring ceriies two pulleys 34, the expansion or contraction .oi the spring equals the distance through which the door is moved. A rod or wire 38 is also passed through the spring 32 as in Fig ure 1.

Although specific embodiments of the invention have been iliustrnted and described, it will he understood than; verious alterations in the details of construction may he made without departing from the scope of the invention, as indicated by the appended claims.

What I claim is:-

i. The combination with e door frame, 025 e vertically clidable door received in said frame, pulleys mounted on said frame above said door, a spring disposed between said pulleys, cables connecting opposite ends of said spring to the a cent pulleys, cables connected to saidpulleys to said door at points adjacent to the lower e col, ercuete and horizontal portions, eeid counter balance means comprising double pulley blocks mounted in said frame above said door, each oi said pulley blocks having portions of diilerent diameters, e spring disposed between said blocks, it cehle extending from each end of said spring and wound around the smaller diameter portions of said pulley blocks, and another cable Wound around each of the larger portions oi. said pulley blocks and secured to said door adjacent to the lower part thereof, the diameter of the larger portions oi said pulleys being substantially twice that oi the smaller portions.

ENCE G. Johnson. 25

US56724331 1931-10-06 1931-10-06 Spring counterbalance for vertically slidable doors Expired - Lifetime US1983856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US56724331 US1983856A (en) 1931-10-06 1931-10-06 Spring counterbalance for vertically slidable doors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56724331 US1983856A (en) 1931-10-06 1931-10-06 Spring counterbalance for vertically slidable doors

Publications (1)

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US1983856A true US1983856A (en) 1934-12-11

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US56724331 Expired - Lifetime US1983856A (en) 1931-10-06 1931-10-06 Spring counterbalance for vertically slidable doors

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453554A (en) * 1945-05-11 1948-11-09 Thomas John Overhead door guiding and latching mechanism
US2655683A (en) * 1950-02-02 1953-10-20 Mckee Door Company Overhead door
US2656561A (en) * 1949-01-12 1953-10-27 Mckee Door Company Overhead door wheel mount
US2703141A (en) * 1945-12-24 1955-03-01 Mckee Door Company Overhead door
US3429072A (en) * 1967-07-14 1969-02-25 Douglas Charles Sammons Coiled spring assemblies
US4082133A (en) * 1976-06-03 1978-04-04 William Halopoff Sectional garage door spring container
US4640049A (en) * 1985-10-29 1987-02-03 Duncan Joseph L Safety devices for overhead garage door springs
US4757853A (en) * 1986-11-14 1988-07-19 Frank S. Price Safety device for garage door springs
US4783929A (en) * 1987-09-04 1988-11-15 Holmes-Hally Industries Guard apparatus for shrouding spring loaded garage door hardware
US20110061303A1 (en) * 2009-09-15 2011-03-17 Carl John Peterson Overhead door track assembly
EP3101452B1 (en) 2012-08-06 2018-08-22 Hörmann KG Antriebstechnik Light grid device, light grid securing device and automatically powered gate with same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453554A (en) * 1945-05-11 1948-11-09 Thomas John Overhead door guiding and latching mechanism
US2703141A (en) * 1945-12-24 1955-03-01 Mckee Door Company Overhead door
US2656561A (en) * 1949-01-12 1953-10-27 Mckee Door Company Overhead door wheel mount
US2655683A (en) * 1950-02-02 1953-10-20 Mckee Door Company Overhead door
US3429072A (en) * 1967-07-14 1969-02-25 Douglas Charles Sammons Coiled spring assemblies
US4082133A (en) * 1976-06-03 1978-04-04 William Halopoff Sectional garage door spring container
US4640049A (en) * 1985-10-29 1987-02-03 Duncan Joseph L Safety devices for overhead garage door springs
US4757853A (en) * 1986-11-14 1988-07-19 Frank S. Price Safety device for garage door springs
US4783929A (en) * 1987-09-04 1988-11-15 Holmes-Hally Industries Guard apparatus for shrouding spring loaded garage door hardware
US20110061303A1 (en) * 2009-09-15 2011-03-17 Carl John Peterson Overhead door track assembly
US8684065B2 (en) * 2009-09-15 2014-04-01 Carl John Peterson Overhead door track assembly
EP3101452B1 (en) 2012-08-06 2018-08-22 Hörmann KG Antriebstechnik Light grid device, light grid securing device and automatically powered gate with same

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