US1248364A - Door-opening device. - Google Patents

Description

L. H. MARK.

DOOR OPENING DEVICE.

I APPLICATION FILED APR-L191]: 1 fifi fio Patentefl Nov. 2?, 191?.

2 SIIEET$--SHEET INVENTOR ATTORNEY L. H. MARK. DOOR OPENING DEVICE.

APPLICATION FILED APR. 7. I917- ]Patented Nov. 27, 1917.

2 SHEETSSHEET 2- INVENTOR l7. 7. away if ATTORNEY mas H. MARK, or TORQUAY, SASKATCHEWAN, CANADA.

DOOR-OPENING DEVICE.

Specification of Letters Patent.

Patented Nov. 2'7, 1917.

Application filed April 7, 1917. Serial No. 160,481.

To all whom it may concern:

Be it known that I, LARS I-I. MARK, a subjectof the King of Great Britain, residing at Torquay, in the Province of Saskatchewan and Dominion of Canada. have invented new and useful Improvements in Door- Opening Devices, of which the following is a specification.

This invention relates to door operating devices and it has particular reference to an improved device for opening the doors of a garage, said-device being operable by a wheel of an automobile approaching the garage.

The invention has for its object to produce a simple and improved door actuating device which may be installed at moderate expense and which will be autonntically actuated to open doors of a garage by pressure of a wheel of an approaching automobile.

A further object of the invention is to simplify and improve the construction, arrangement and operation of the detailed parts of the device.

With these and other ends in View which will readily appear as. the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

' In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

In the drawings:

Figure l is a perspective view showing a portion of a garage together with the doors of the same and the means for operating said doors which constitutes my invention.

Fig. 2 is a sectional elevation of a garage to which the invention has been applied.

Fig. 3 is a plan view.

Fig. 4 is a sectional view, enlarged, taken on the line 4.t in Fig. 3.

i Fig. 5 is asectional detail View taken on the line 5-5 in Fig. 2.

Fig. 6 is a sectional detail View taken on the line 66 in Fig. 5.

Corresponding parts in the several figures of the drawings are denoted by like characters of reference.

I11 the drawings A designates the front portion of a garage having a door frame B including side posts 0 onwhich the doors D are hinged in the customary manner.

Mounted on each door post G near the lower end thereof is a housing 15, said housing consisting of a strong and durable casing which affords a bearing for a vertical shaft 16, said shaft having at its upper end a radially extending arm 17 and at its lower end a gear wheel 18. Firmly secured on the outer face of each door D intermediate the side edges thereof is a plate 19 having an eye or staple 20 with which is loosely connected one end of a short link 21, said link having at its other end an eye 22 through which one of the arms 17 extends. v

Each housing 15 is suflici'ently enlarged at its lower end to receive a gear segment 23 which is mounted for rotation on a pintle 24, said gear segment having an arm 25 that extends through a slot or opening 26 in the side wall of-the casing. It will be understood that the arms 25 of the gears 23 in the respective casings extend in the direction of each other and in the direction of the free'edges of the respective doors D.

A housing or casing 27 having a cover plate 28 is embedded in the ground a suitable distance in front of the garage and in approximate alinement with the vertical medial line of one of the doors, the purpose of such arrangement being to place it in alinement with one of the wheels of an approaching automobile. The distance between the housing 27 and the garage should be fully equal to the length of the automobile plus the distance occupied by the doors when swung open, in order that the opening device may be actuated by one of the hind wheels of the machine. The cover plate 28 is provided with a slot 29 to accommodate a pivoted arm 30 having at its upper end a cross bar 31 constituting a pedal and carrying at its lower end a gear segment 32 that extends through an arc of approximately ninety degrees. The segment 32 meshes with a gear segment 33 pivoted at 34 and having an arm 35 with which the front ends of two connecting rods 36 are pivotally connected, the rearward end of each connecting rod being pivotally connected with the arm bar or pedal 31, thereby rocking the arm 30.

25 extending from one of the gear segments 23 through the slot 26 of one of the housings 15.

When an automobile approaches the garage it has to be properly guided so that one of the hind wheels will engage the cross and causing the quarter segment 32 to rock the gear segment 33 a sufiicient distance to transmit motion through the rods 36 and other connections to swing the garage doors open. The parts are so proportioned, however, that by the time the doors are swung open the toothed segment 32 will pass out of engagement with the gear segment 33, thus permitting the pivoted arm 30 to continue its swinging movement until the cross bar or pedal rests on the ground or on the cover plate 23. As soon as the wheel passes clear of the pedal, the segment 32 will'gravitate into engagement with the segment 33. When the doors are swung closed, the pedal carrying arm 30 will thus be automatically restored to its initial upright position. It is now assumed that the automobile is safely housed in the garage. When the automobile is taken out, the doors may be opened manually, and engagement of one of the automobile wheels with the pedal will serve to swing them shut.

It is obvious that the connecting rods 36 are to be suitably housed beneath the surfaceof the ground and that the general construction of the device is to be of such a nature that the working parts will be protected from weather influences and the like.

Having thus described the invention, what is claimed as new is:

1. In an opening device, the combinationthrough the eye of the link, and means for rotating the shaft about its axis to swing the door open,said means including intermeshing gears one of which is fixed on the shaft and the other pivoted adjacent thereto, said last mentioned gear having a radially extending arm, and a connecting rod having one end pivotally connected with said ar1n, a tiltably supported arm having a gear segment connected therewith at one end and a pedal bar at the other end, and a second tiltably supported arm having an interm-eshing gear section at one end, the other end of said arm being pivotally connected with the connecting rod.

2. In a door opening device, a hinged door having an eye or staple connected therewith intermediate the side edges thereof, a link rod connected with said eye or staple and having an eye at its free end, a vertical shaft supported adjacent to the hinged edge of the door and having a radial arm engaging the eye of the link rod, intermeshing gears one of which is carried by the vertical shaft, a housing affording a bearing for the vertical shaft and having a bottom plate on which the other intermeslr ing gear is pivoted, said last mentioned gear having an arm that extends through a side wall of the housing, and means for rocking said arm, said means including a tiltably supported arm having a pedal bar at its upper end and a gear segment at its lower end, a housing having a slotted top plate in which said arm is pivoted, a second arm tiltably supported in the housing and having a gear segment meshing with a gear segment -of the first mentioned arm, and a rod connecting the last mentioned arm with the arm of the segment projecting through the housing.

In testimony whereof I affix my signature.

LARS H. MARK.

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