US1796582A

US1796582A - Door-operating mechanism

Info

Publication number: US1796582A
Application number: US209738A
Authority: US
Inventors: Arthur R Stoven
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-08-01
Filing date: 1927-08-01
Publication date: 1931-03-17
Anticipated expiration: 1948-03-17

Description

March 17, 1931. A. R. STOVEN 1,796,582

DOOR OPERATING MECHANI SM Original Filed Aug. 1, 192'? 2 Sheets-Sheet l March 17, 1931. A. R. STOVEN 1,796,582

DOOR OPERATING MECHANI SM Original ile ug- 1, 1927 2 Sheets-Sheet 2 Patented Mar. 17, 1931 ARTHUR H. STOVEN, F MINNEAPOLIS, MINNESOTA DOOR-OPERATING lvflECHANISM Application filed August 1, 1927, Serial No. 209,738.

This invention relates to a door operating mechanism, and while the invention is capable of application for opening many kinds of doors, it particularly is designed for use as a power door operator for opening doors of a building through which vehicles pass.

It is an object of this invention to provide a simple and efficient mechanism for opening a door and for closing the same, which mechanism is conveniently arranged to be operated by a motor.

It is another object of the invention to provide door operating mechanism of simple and efiicient structure preferably operated by i an electric motor comprising a series of links operated by an oscillating arm moving in a plane substantially perpendicular to the plane of the doors, one of said links being pivoted about a fixed axis at some distance from the door and at one side of said arms.

It is another object of the invention to provide a door operating mechanism for operating double doors, or doors opening in opposite directions, comprising a pair of arms loscillatable in opposite directions about a common axis, a motor for oscillating said arms, a link mechanism connected to said arms, respectively, one of the links of said mechanism being pivoted about a fixed axis at some distance from the doors and at one side of said common axis.

It is still another object of the invention to provide a door operating mechanism for operating a folding door comprising hinged sections including an oscillating arm movable about an axis extending parallel to the plane of the door, a link pivoted to the doors adjacent the hinged connection of said sections, a link pivoted intermediate the ends of the last mentioned link and to said arm, and athird link pivoted to the end of said first mentioned link and pivoted at its other end to a fixed axis a considerable distance from the door and at one side of said first mentioned axis, said first and last mentioned links being arranged to be substantially in alinement perpendicular to the plane of the doors when the doorsare in closed position and substantially in alinement and perpen- Rcnewed May 28, 1930.

i-hese and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings wherein like reference characters refer to the same parts throughout the dillerent views, and in which,

Fl 1 is a top plan view of the mechanism, the door frame being shown in horizontal section and the doors and mechanism being shown in different positions in dotted lines;

Fig. 2 is a view in side elevation of the mechanism, a portion of the door frame or well. being shown in vertical section taken on the line 2 E of Fig. 1;

Fig. 3 a partial view in side elevation showing a switch operating mechanism;

i is a vertical. section taken substantially on the line 41-41 of l? l; and

Fig. 5 a horizontal, section taken on the line Fi-5 of F1 at, said sections being taken,

, s indicated by the arrows, and El be it shown on an enlarged scale. Referring to the drawings, the sides of the door frame are shown as 10, the cross member of the frame being shown as a. A pair of doors ll. and 12 are shown, and while these doors may be of any desired type, in the embodiment of the invention they are illustrated as folding doors having the sections 1165, 11?), 12a and 126, respectively, which sections are hinged together by hinges 13. The door 11 is hing d to one side of the frame 10 by the l e 14 secured thereto swinging about the pintle 15 and the door 12 is hinged by the hinge 16 swinging about the hinge pintle 17.

l/Vhile the doors do not have to be suspended from a track, to be operated by the mechanism of the present invention, in the embodiment of the invention illustrated, the doors 11 and 12 are shown as having members 18 secured thereto adjacent their free edges from which 3, 4 and extend upwardly the rods or shafts 19 hav- .ing members or rollers 19a at their upper ends 10a. The members 19 are adjustably secured to the brackets 18. Any suitable and desired form of track may be used and the same forms no part of the present invention.

In accordance with the present invention aframe 23 is provided which will be suspended from members 2% which preferably extend to the ceiling and from members 25 which 6X- tend upwardly toward the wall 10a and to which they will be secured. The lrame 23 has mounted thereon an electric motor 26, the driving shaft of which is equipped with a pulley'2? over which runs a belt 23 also runnin over a pulley 29 secured to a worm gear shaft 39. he shaft 30 extends into a worm wheel bracket and casing 31 which is secured to frame 23 by the bolts The shaft 30 has secured thereto a worm gear 33 received in a recess in the casing 31, which worm gear meshes with a worm wheel gear 34. The gear 34: has the hub or sleeve portion 34a extending through a hub 31a of the casing 31 and said sleev-e 3 la has secured thereto outside of the hub 31a an arm 35, said arm being shown as secured by the set screw 35a. The gear 34 has a beveled gear 346 formed on its upper face with which meshes a pair of beveled pinions 36 also meshing with a beveled gear 37 disposed oppositely to gear 34?). The gear 37 is secured to a shaft 33 which extends through the sleeve 3 164 of the gear 3% and has secured to its lower end beneath the arms 35 a similar arm 39, said arm being shown as secured to said shaft by a key ll). The shaft 38 is journaled in the top section 316 of casing 31 and has secured thereto above said casing a pair of cams 4:1. The beveled pinions 36 are journaled on the ends of a member 12 having a central hub portion 42a through which p asses the shaft The cams 41 co-operate with a yoke member 43 having an inwardly directed arm or flange 43a adapted to be engaged by the upper of said cams 41 having another inwardly directed arm or flange 436 on which is disposed an adjustable screw A. adapted to be engaged by the other of said cams. Arod 4:5 is secured to the yoke as and slidable in bearings 16 secured to and upstanding from I the top of casing 31, said rod having ayoke 45a formed its other end receiving a pair of coiled springs 4-7 disposed at opposite sides oi the upper end of a'switch arm 43 adapted to operate asuitable three-way switch disposed in a casing 49. The switch 49 is suitably'connected to the motor 26 so that when the switch is in one position and a certain other manually operated switch is operated, the motor will run in one direction, and when switch 49 is in its other position and the said manually operated switch is operated the motor will run in the opposite direction.

Arms

35 and 39 have connected to their ends, respectively,

links

50 and 51. The

links

50 and 51 are connected at their other ends, respectively, intermediate the ends of

links

52 and 53. The

links

52 and 53 are pivotally connected at one end, respectively, to

brackets

54 and 55 which are, in turn, respectively secured to the doors 12 and 11. While the point of connection of the brackets to these doors could be varied somewhat, in the embodiment of the invention illustrated, they are shown as connected to the sections 126 and 11b closely adjacent the outer edge of said sections, The

links

52 and 53, at their other ends, are pivotally connected to

links

56 and 5! and the latter links are connected at'their other ends to fixed

pivots

58 and 59, respectively. The

pivots

58 and 59 are secured adjacent the outer ends of the member 60 illustrated as in the form of an angle bar rigidly secured tothe frame 23 and extending outwardly a considerabledistance at each end thereof. It will be seen from Fig. 1 that the axes of

pivots

58 and 59 are disposed in lines extending substantially parallel to the plane of the doors when in closed position.

operation, when the doors are in closed position, the mechr'iism will occupy the posii n shown in full lines in Fig. 1. The switch a9 will then be in the position shown in Fig. 3. The motor26 will be started by closing a switch .(not shown) and will, through the belt 28,rotate the shaft 30. This will rotate worm gear 33 and worm wheel gear 34, thus rotating beveled gear 34?) and pinions 36. The pinions 36 will rotate beveled gear 37 and shaft 38.

Said shaft and the sleeve 34-64 will then thus be rotated in opposite'directions and arms 35 and 39 v ill be turned. Arm 35, as shown in 1, will be turned in a counter-clockwise direction and arm 39 in a clockwise direction. As these arms turn, the

links

50 and 51 are moved pul'ing on the

links

52 and 53, respectively, thus opening the doors Hand 12. As the mechanism continues to move, the parts will be brought to t is position shown in dotted lines in Fig. 1. The sections 11a and 11b and 12a and 12?) of the uoors 11 and 12 will take the position shown in dotted lines. W hen the doors are in this position the lower cam ll moves the yoke as to the right, as shown in 3, throwing switch 429 and stopping the motor The doors are thus h ld in open position. It will be seen that when the doors are in closed position the

links

53 and 57 and

links

52 and 56 are respectivel alined and extend substantially at right angles to the plane of the doors when in closed )osition. As he mechanism starts to open the doors, there fore, the links 52and 53 are in advantageous position for a direct pull on the doors to break the sections thereof or swing thesame about-the hinges 13 and to start the opening movement. When the doors are to be closed.

another manually operated switch will be closed and the motor 26 will then be driven in a reverse direction. This'will again swing the

arms

35 and 39 so that the same will oscillate back to the position shown in full lines in Fig. 1, tius moving the doors to closed position. It is seen that when the doors are in open position the

links

53 and 57 as well as

links

52 and 56 are substantially alined and extend substantially at right angles to the plane of the folded sections 11a and 11b and 12a and 126. When the closing movement starts, therefore, the links 52 and are in advantageous positions to exert a strong leverage on the doors to close the same. The leverage decreases as the doors approach closed postion and is at a substantial minimum as the doors come to closed position. This will cause positive but easy closing of the doors. The doors are also brought positively but with easy motion and little force, to wide open position. The

links

52 and 56 form, in effect, a straightened toggle holding the doors locked in open or closed position. It will be seen that the hinge pintle is set well back of the inner face of the door frame so that the door opening between the frames is entirely unobstructed when the doors are in m wide open position.

From the above description it is seen that applicant has provided a simple door opening and closing mechanism. The mechanism is very compact, comprising few parts and yet operates quickly and positively. The mechanism has a high degree of utility, particularly in connection with garage doors, doors for fire department buildings, and other buildings where vehicles move frequently through the doors. The device has been amply demonstrated in actual practice and found to be very successful and efficient.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts without departing from the scope of applieants invention, which, generally stated, consists in a device capable of carrying out the objects above set forth and in the novel parts and combinations of parts described and defined in the appended claims.

What is claimed is:

1. A door operating mechanism having in combination, a driven shaft in front of said door with its axis extending substantially parallel to the free edge of said door, and towardwhich said door opens an arm secured to said shaft and movable in a plane substantially at right angles to said axis, a swinging member pivoted to a fixed axis disposed considerable distance in front of said door at one side of said first mentioned axis, a member pivotally connected to said member and to said door, a link connected at one end intermediate the ends of said last mentioned member and at its other end to said arm.

2. A door operating mechanism having in combination, a. driven shaft in front of said door with the axis extending substantially parallel to the free edge of said door, and

toward which said door opens, an arm secured to said shaft and movable in a plane substantially at right angles to said axis, a link pivoted about a fixed axis a considerable distance in front of said door and at one side of said axis, a link pivoted at one end to said link and at its other end to said door, and a link pivoted at one end intermediate the ends of said last mentioned'link and to said arm, said first two mentioned links being disposed substantially in alinement when said door is in closed position.

3. The structure set forth in claim 2, said first and second mentioned links being also substantially in alinement when said door is in open position.

4. A door operating mechanism having in combination, a driven shaft in front of said door with its axis extending substantially parallel to the free edge of said door, and toward which said door opens, an arm secured to said shaft and movable in a plane substantially at right angles to said axis, a link pivoted about a fixed axis a considerable distance in front of said door and at one side of said axis, a link pivoted at one end of said link and at its other end to said door, and a link pivoted at one end intermediate the ends of said last mentioned link and at its other end to said arm, said first and second men tioned links being disposed to extend substantially at right angles to the plane of said door when said door is in closed position.

5. A door operating mechanism for operating double doors swinging in opposite directions having in combination, a frame disposed above and in front of said doors toward which they swing to open position, a motor mounted on said frame, a worm gear shaft, means for driving saidshaft from said motor, a worm wheel gear meshing with said worm gear carrying a beveled gear, a beveled pinion meshing with said beveled gear, an arm secured to said worm wheel gear, a sec ond beveled gear at the other side of said pinion, a shaft secured to said second beveled gear on which said worm wheel gear is journaled, an arm secured to said last mentioned shaft, links pivotally connected to said arms, links respectively pivoted at one end to said doors and having said first mentioned links pivotally connected intermediate the ends thereof, respectively links pivotally connected to said last mentioned links and pivotally connected at their other ends to fixed pivots disposed at either side of said worm wheel gear axis.

6. A door operating mechanism for oper ating double doors, opening, respectively, in

opposite directions, having in combination,

arms rotatable about common axis substantially parallel to the free edge of said doors, means for oscillating said arms in opposite directions, each arm being pivoted, respectively, to one of a pair of links, members intermediate the ends of whicb the other ends of said links are connected, said members being pivoted to said doors, respectively, and links connected to said members, respectively,

and tofixed axes disposed at each side of said Y by said motor for oscillating said arms, re-

spectively, in opposite directions, a link pivotally connected at one end to each of said arms, a link intermediate the ends of which said'last mentioned link is connected, said last mentioned link being pivotally connected to one of said doors, a link pivotally connected to the other end of said last mentioned link and pivotally connected at its other end about a fixed axis disposed a considerable distance in front of said doors and at one side ofsaid common axis.

8. A door openingand closing mechanism for a folding door comprising an arm turnable in a plane substantially at right angles to the free edge of said door, a track above said door, a member secured adjacent the free edge of said door movable on said track, a link pivoted to said door adjacent the folding hinge thereof, a link pivoted to the other end of said link and pivoted at its other end to a fixed axis a considerable distance from said door, a link pivoted at one end intermediate the ends of said first mentioned link and piv oted at its other end to said arm, and means for turning said arm to open and close said 7 door.

9. The structure set forth in claim 8, said first mentioned links'being substantially in alinement' perpendicular to the plane of said door when said door'is closed.

10. The structure set forth in claim 8, said first two mentioned links being substantially alined and perpendicular to the plane of said doors when said'latter are in open folded position.

11. A door operating mechanism having in combination, a pair of members pivotally connected together at one end and pivotally mounted at their other ends, respectively, to

combination, a driven shaft in front of said door with its axis extending substantially parallel to the free edge of said door, and toward which said door opens, an arm secured to said shaftand movable in a plane substantially at right angles to axis of said shaft, a toggle link having the outer end of one link connected to said door and the outer end of its other link pivoted to a fixed axis on the same side of said door as said driven shaft, and a link pivotally connected to said arm at one end and pivotally connected at its other end intermediate the ends of one of said toggle links, constructed and arranged to straighten said toggle as said door approaches open or closed position and to break and swing said toggle upon swinging movement of arm to open or close said door.

In testimony whereof I atlix my signature.

ARTHUR H. STOVEN.