US1087075A - Door-controlling means. - Google Patents

Description

H. G. VOIGHT. DOOR. CONTROLLING MEANS. APPLICATION FILED ov. 171, 1913.

Patented Feb. 10, 1914.

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H. G. VOIGHT.- DOOR CONTROLLING MEANS. APPLIOATION FILED NOV. 11, 1913.

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H. G. VOIGHT.

DOOR GDNTROLLING MEANS.

I APPLICATION FILED NOV. 11, 1913. 1,087,075, I Y Patented Feb. 10, 1914.

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HENRY G. VOIG-HT, OF NEW BRITAIN, CONNECTICUT.

DOOR-CONTROLLING MEANS.

To all whom "it may concern I Be it known that I, HENRY G. Vororrr, a citizen of the United States, residing at New Britain, Hartford county, State of Connecticut, have invented certain new and useful Improvements in Door-Controlling Means, of which the following is a full, clear, and exact description.

The present invention relates to controlling and operating means for sliding doors and similar closures, and is designed to provide a structure of this character particularly applicable to the doors of elevator wells, wherein the controlling means may be positioned for operation by the operator of an elevator car within such distance from the car control as to make both the door and car control possible from the same position on the part of the car operator.

My present invention aims to provide a structure which will provide these condi tions of operation and which will at the same time provide a controlling means for the door which embodies various desirable features of construction.

A specific embodiment of my invention is described in detail in the following specification taken in connection with the accompanying drawing forming part thereof and in which,

Figure 1 is a view in elevation of the inner side of an elevator well door as viewed from the elevator car, the position of the parts in door open position being indicated in dotted lines. Fig. 2 is a fragmentary view in side elevation and on an enlarged scale, showing the door with the controlling handle and toggle attached thereto. Fig. 3 shows a detail of construction. Fig. 4 is a fragmentary side elevation showing a modified form of the control shown in Fig. 2.

Referring to the drawings by numerals, 1 indicates a sliding door of standard construction and type, and 2 the casing thereof, 3 designating the wall of the elevator well forming a stationary abutment. Attached to the door and extending transversely thereof from a point adjacent its forward edge, is a base plate 4 having superimposed thereon adjacent its forward edge a bracket 5 having thereon a stud 6 on which the forward end of a lever arm 7 is journaled, this lever arm being pivotally connected adjacent its opposite end with a second arm 8 having its rear end provided with a transverse arm 9, the rear extremity thereof be- Specification of Letters Patent.

Application filed November 11, 1913.

Patented Feb. 1%), 1914. Serial No. 800,307.

ing journaled as at 10 in a bracket 11 appropriately secured to the wall 3 or other stationary abutment. These levers 7 and 8 together constitute a toggle which swings with the opening and closing of the door. The transverse arm 9 is pivotally connected to the upper end of a piston rod 12, whose piston is inclosed within a power cylinder 13 pivotally mounted at its lower end on the arm 1% of a bracket 15 securely fastened to the stationary abutment surface 3. This power cylinder may be of any suitable construction, preferably having a piston therein with a spring operating against the piston and normally tending to pull the arm 9 and toggle levers 7 and 8 downwardly to the position shown in full lines in Fig. 1.

order to insure this position of the pivots of the toggle, the toggle arm 7 is provided adjacent its end with a stop pin 7 and the toggle arm 8 has its end cut away or recessed to provide a stop shoulder 8*, which, when the door is closed, will abut against the stop pin 7 to maintain the toggle arms with their pivots in horizontal alinement.

The power cylinder 13, when the door is opened, normally tends to pull the arm 8 downwardly through its transverse arm 9 to swing the door toward closed position. In order to move the toggle arms to open the door against the force of the power cylinder, with a minimum expenditure of energy on the part of the operator and so as to position the arms at an angle which will permit the power cylinder to quickly start the return, the toggle should be as long as possible and, in a great many cases, is secured to the door adjacent its forward edge. The manually applied force for opening the door is most efiective when applied to the toggle adjacent this point. In such a case where the door is a wide one and substantially coincident with the area of exit opening, the operating handle, if placed at or adjacent the forward edge of the door, would be located at a considerable distance from the operating control of the elevator car, so that the operator of the car to open the door, must leave the car control. I have provided means, however, whereby the operating foree is applied to the toggle at the most advantageous point with the operating handle itself positioned at a point removed from the forward edge of the door and between this point and the stationary abutment at a point preferably where it and the car control are both accessible to the operator at the same time. To this end, spaced links 16 are pivoted to and embrace the forward toggle arm. 7 at a point adjacent its pivoted door connected end and extend downwardly therefrom. The bracket plate 5 carried by the door edge is provided with a stud 17 on which is journaled a controlling lever 18 having an integral rightangle arm 19 extending transversely of its pivot point, the end of this arm seating be tween the spaced links 16 and being pivotally secured thereto adjacent the lower ends of said links as at 20. Power applied to the lower end of the controlling lever 18 will transmit through links 16 a powerful leverage against the toggle moving it from its horizontally alined locking position upwardly in a direction to slide the door toward open position and against the force of the power cylinder, the leverage being compounded through the controlling lever and links to make this result possible with the expenditure of a minimum of force as applied to the controlling lever. At a point removed from the forward edge of the door, and, in the present showing of toggle arm components, at a point between the pivot points of the forward toggle lever, the plate 4 is provided with a stud 21 on which is journaled and from which depends an operating handle 22 having an offset hand grip 23 at its lower end. This base plate 4t may extend for substantially the entire width of the door (or when this distance is not suflicient, the plate a may be extended beyond the rear edge of the door or other support ing means provided for the operating handle) so that the operating handle may be positioned at the most advantageous point. I connect this operating handle 22 with the controlling lever 18 by means of a link 24 preferably arranged substantially parallel with the toggle when horizontal, and pivotally connected at its ends to the controlling lever 18 and to the operating handle 22 as shown. With the operating attachment described, the operator may stand within reach of the controller, grasp the door operating handle 23 and through the connections described, readily move the toggle from horizontally alined position to unlock the same and to move the door toward open position against the force of the power cylinder, the parts assuming the positions indicated in dotted lines in Fig. 1 of the drawings. When the door is released, the pow r cylinder operating against the transverse arm 9 of the rear toggle lever 8, moves the toggle arms forward and downwardly to move the door to closed position where it would be locked against opening from the exterior by means of the horizontal alinement of the toggle arms, the operating handle and its connections returning to the solid line positions indicated in F 1 with the closing of the door.

In some instances where it is required or necessary to place the operating handle back a substantial distance from the front edge of the door, it is obvious that following previous practice, the toggle levers would be to that extent shortened. I have found that to secure the greatest efficiency, it is most desirable that the toggle levers should be of the maximum length; that is to say, the forward end of thetoggle levers should terminate near the front edge of the door, therefore, in such cases above referred to where the handle must be placed a substantial distance back of the forward edge of the door, I avoid lessening the efliciency of the toggle system by maintaining said toggle system of the maximum length and coupling the operating handle thereto in the manner previously described, thereby placing the operating handle well back from the front. edge of the door, as necessity requires. In some instances where the sliding doors are very wide and the elevator controlling lever is located on the side of the car new, to the fixed abutment, it is obvious that an operator would have difliculty in reaching the handle as ordinarily arranged while still remaining in position to control the controlling lever of the car. By my arrangement, the handle may be brought back to a position where it may be conveniently grasped by the operator while standing in a position to still manage the ole ator controlling lever. This is only one of the many instances where it would be of advantage to locate the door operating handle at a posi tion well back of the front edge of the door. Now. as will be seen, even though the door operating handle is located in the position stated, the power will be applied with the same degree of efficiency that it would be applied with if the handle were located at the edge of the door directly under the forward end of the toggle system.

In the modification shown in Fig. t, l have shown the handle 22 and the link 2-t as before. The link 24 is pivotally connected to a lever 18 The lever 18 is connected by a link 16 to the extreme forward end of the toggle T on the pivot 26, the toggle being pivoted to the door at the point (3. By arranging the pivotal point 27 of the link 18 below the pivotal point (S a powerful leverage is afforded, furnishing relatively quick action at the expenditure of a minimum of effort.

In Fig. l. I also show another modification in which 27 represents a lifter arm extension from the handle 22, said lifter arm being arranged underneath the toggle near its center so that the very first movement of the operating handle 22 will move the arm 27 to break the toggle or start it on its upward movement. This feature may be employed in either form of device herein illustrated whenever required.

I have herein illustrated a particular form of door control, but desire it understood that the invention is not limited in scope thereto, but may be modified in structure and in'relative arrangement of parts within the spirit of the invention and the scope of the appended claims.

lVhat I claim, therefore, and desire to secure by Letters Patent is:

1. Controlling means for sliding doors embodying an arm operatively connected adjacent one end with the door and arranged for operative connection with a stationary abutment to swing with the opening and closing of the door, and meansfor moving said arm in a direction to slide said door, said means acting upon and being operatively connected with said arm adjacent its point of door connection, and having means of manual control located'at a point re moved from said point of door connection, and between said point and said stationary abutment.

2. Controlling means for sliding doors embodying an arm operatively connected adjacent one end with the door and arranged for operative connection with a stationary abutment to swing with the opening and closing of the door, power mechanism acting upon said arm to swing the samein a direction to slide said door toward closed position, and means for moving said arm in a direction to slide said door toward open position, said means acting upon and being operatively connected with said arm adjacent its point of door connection and having means of manual control located at a point removed from said point of door connection, and between said point and said abutment.

3. Cont-rolling means for sliding doors embodying an arm operatively connected adjacent one end with the door and arranged for operative connection with a stationary abutment to swing with the opening and closing of the door, and means for moving said arm in a direction to slide said door, said means being operatively connected to said arm and acting thereagainst adjacent its point of door connection and including a manually operable handle supported by and movable relative to the door, and lo-- cated at a point removed from said point of arm connection, in the direction of said abutment.

4. Controlling means for sliding doors embodying an arm connected adjacent one end to the door and arranged for operative connection adj acent its other end with a stationary abutment whereby said arm swings with theopening andclosing of the door, a controlling lever for said arm and door carried by said door and operatively connected with said arm, and manually controlled operating means for said lever positioned between said controlling lever and said abutment and operatively connected with said lever to actuate the same to control said arm and door.-

5. Controlling means for sliding doors embodying an arm pivotally connected adjacent one end to the door and arranged for operative connection adjacent its other end with a stationary abutment to swing with the opening and closing of the door, a controlling lever for said arm and door carried by said door and operatively connected with said arm adjacent the point of door connection of said arm, and manually controlled operating means for said lever positioned between said lever and said abutment and operatively connected with said lever to actuate the same to control said arm and door.

6. Controlling means for sliding doors embodying an arm pivotally connected adjacent one end to the door and arranged for operative connection adjacent its other end with a stationary abutment to swing with the opening and closing of the door, a controlling lever for said arm and door carried by said door and operatively connected with said arm adjacent its pointof door connection, power mechanism operating against said arm to swing the same in a direction to slide said door toward closed position, and manually controlled operating means for said lever positioned between said lever and said abutment, and operatively connected with said lever to swing said arm in a direction to slide said door toward open position. I

7. Controlling means for sliding doors embodying a toggle pivotally connected adjacent its forward end to the door and having its rear portion operatively connected with a stationary abutment whereby said toggle swings with the opening and closing of the door, a controlling lever carried by the door and operatively connected with said toggle adjacent its forward door pivoted end, and manually controlled operating means for said lever supported by said door and positioned between said controlling lever and said abutment and connected with said lever to actuate the same to move said toggle in a direction to slide said door.

8. Controlling means for sliding doors embodying a toggle pivotally connected ad. j acent its forward end to the door and having its rear portion operatively connected with a stationary abutment whereby said toggle swings with the opening and closing of the door, power mechanism operatively connected with said toggle and normally tending to swing the same in a direction to slide said door toward closed position, a cont-rolling lever carried by the door and operatively connected with said toggle adjacent its forward door pivoted end, and manually controlled operating means for said lever supported by said door and positioned between said controlling lever and said abutment and connected with said lever to actuate the same to move said toggle in a direction to slide said door toward open position.

9. Controlling means for sliding doors, embodying a toggle pivotally secured adjacent its forward end to a door and arranged for operative connection with a sta tionary abutment to swing with the opening and closing of the door, a link pivotally carried by said toggle adjacent its forward pivoted end and extending transversely therefrom, a controlling lever pivotally carri d by said door at a point removed from the pivot point of said toggle thereon and pivotally connected to said link, an operating handle supported by said door at a point removed from said toggle pivot and said link in the direction of said abutment, and ope 'ative connections between said handle and said controlling lever whereby movement of said handle in one direction operates said lever and link to swing said toggle in a direction to slide said door.

10. Controlling means for sliding doors, embodying a toggle pivotally secured adjacent its forward end to a door and arranged for operative connection with a stationary abutment to swing with the opening and closing of the door, power mechanism operatively connected with said toggle and normally tending to swing the same in a direction to slide said door toward closed position, a link pivotally carried by said toggle adjacent its forward pivoted end and extending transversely therefrom, a controlling lever pivotally carried by said door at a point removed from the pivot point of said toggle thereon, and pivotally connected to said link, an operating handle supported by said door at a point removed from said toggle pivot and said link in the direction of said abutment, and operative connections between said handle and said controlling lever whereby movement of said handle in one direction operates said lever and link to swing said toggle in a direction to slide said door toward open position.

11. Controlling means for sliding doors comprising a toggle, the rear part of said toggle being arranged to be connected to a stationary abutment, the forward partof said toggle being arranged to be connected to a sliding door adjacent the forward edge of the latter, a handle arranged to be pivoted to the door at a point between its forward and rear edges and well removed from its front edge, and means of connection between said handle and the toggle, said connection being closer to the forward pivotal point of the toggle than the pivotal point of the handle relatively to the forward pivotal point of the toggle.

l2. Controlling means for sliding doors comprising a toggle, the rear part of said toggle being arranged to be connected to a stationary abutment, the forward part of said toggle being arranged to be connected to a sliding door adjacent the forward edge of the latter, a handle arranged to be pivoted to the door at a point between its forward and rear edges and well removed from its frontedge, means of connection between said handle and the toggle, said connection being closer to the forward pivotal point of the toggle than the pivotal point of the handle relatively to the forward pivotal point of the toggle, and a toggle lifter operated by said handle and arranged to engage the toggle between its ends in addition to the indirect engagement of said handle with the forward end of said toggle.

Controlling means for sliding doors embodying an arm arranged to be pivotally connected adjacent its forward end to a door and arranged for operative connection at its rear end with an abutment whereby when the arm is swung the door will slide, an operating hand lever carried by said door between the front. and rear edges of the door and to the rear of the point of pivotal connection of said arm with said door, and a connecting link between said arm and said hand lever whereby movement of said hand lever will rock the arm and slide the door.

HENRY G. VOIGHT.

ll itnesses (.iwnnoomnn A. JACKSON, Cnas. E. i-Ussnim.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patenta, Washington. D. C.

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