US1676010A - Car chair - Google Patents

Description

July-3, 1928. J. A. DUFFY CAR CHAIR Filed June 17, 1926 4 Sheet s-Sheet 1 Afforney JulyB, 1928. 1,676,010

J. A. DUFFY can can:

Filed June 17, 1926 4 Sheets-Sheet 2 in van for Q .9/M NM Ailorney Jlily 3, 192s. 1,676,010

K J. A. DUFFY CAR CHAIR Filed June 17, "1926 4 Sheets-Sheet Y 3 /12 22 0 o 9 9 9 9 1 14%? i 14 r L I I l 1 1 I i i l i 16 l I 17 I l 15 1 G l 16 i I I l g l 18 1a I I i F "l 14 14 [22 van for.

' the seat to the other,

Patented July 3, 1928.

UNITED STATES JAMES A. DUFFY, OF FAIRMONT, WEST VIRGINIA.

GAB CHAIR.

Application filed June 17,

This invention relates to car seats and more particularly to car chairs which'may be rotated on a vertical axis. In interurban cars, motor busses and other forms of vehicles and public conveyances, the tendency, in recent years, has been to provlde additional comforts for the occupants and with this fact in view many manufacturers of cars and car chairs have installed a rigid, inclined and upholstered back to what 1s Jpgpularly referred to as de luxe chairs.

this type of car chair, whether the seat be designed for double or single occupancy, instead of ivoting the back horizontally, so that it mig t be reversed from one side of the entire chair, in-

cluding the back, which is rigidly connected to the seat portion, angle of 180.

There are, however, several problems 1n connection with reversing a chair in this manner. Car widths and lengths, as well as the Width and length of seats, have been is rotated through an more or less standardized by manufacturers of cars. The same is true with regard to the distance between the center-lines of seats, that is, the longitudinal distance between seats with respect to the length of the car. Should a chair of the rotary reversible type be rotated about a'fixed axis suflicient clearance between the side of the car and the chair must be provided to permit the corners of the chair to clear the side of the car. Thus, where double seats are used, it is necessary, since the chairs project some distance from the sides of the car, to sacrifice aisle space. Also, it is necessar to space the chairs from each other su ciently to permit the top corners of the inclined backs to pass each other and it is evident that the distance between seat centers must be so fixed that the backs do not touch.

With these problems in View the present invention'has or one of its objects the rovision of a vertically pivoted chair which is adapted to fit closely against the side of the car but which mav be rotated about a base or standard, the standard being provided with a cam which automatically gives a lateral movement to the chair as the latter is rotated.

It is another object of this invention 'to L provide a mechanism for tilting the chair so that the back of the chair assumes an approximate vertlcal position, thus permitting 1926. Serial No. 116,688.

the backs of adjacent chairs to pass each other. without contact.

Other objects of the invention will be apparent from the following description taken in connection with the attached drawing in which:

Fig. 1 is a rear elevation of a preferred form of chair constructed in accordance with the present invention.

Fig. 2 is an elevation similar to Fig. 1, the combined seat and back having been rotated through an arc of 90.

Fig. 3 is a plan view of a supporting plate to which the car seat is attached.

Fig. 4 is a rear elevation of the support shown in Fig. 3.

Fig. 5 is a side elevation of the support shown in Fig. 3.

Fig. 6 is a plan view of the chair base, showing a cam for tilting and laterally displacing the seat.

Fig. 7 is a rear View, partly in section, of the chair base, and

Fig. 8 is a side elevation of the chair base. Referring to the drawings in which like reference characters designate the same parts, the front edge of the combined seat and back 10 is pivotally secured to a supporting frame 11 preferably by means of hinges 12. On the lower slde of the seat, and adjacent its rear edge, is provided a triangular lifting or tilting cam 13 which is secured thereto by screws, rivets or the like. The frame 11 consists of a substantially rectangular plate on one edge of which are secured the hinges 12 and on each being braced by angle bars 22 and cross members 23. Additional angle bars 24 may be provided for further strengthening the base. Mounted on the base 19 is a substantially heart-shape cam plate 25 having a flange 26, surrounding approximately onehalf of the cam. Secured to the frame are stop pieces 27 and 28, the function of which will be understood from the operation of the device as described below.

Fastened to the frame in any suitable manner is a bracket 29 to which is hinged or pivoted a foot-lever 30. A bolt or catch 31 is slidably held by a bracket 32, the lower end of the catch being attached to the lever 30 by which it may be depressed. A spring 33 surrounds the catch 31, one end bearing against the lower end of bracket 32 while the other end abuts a washer 34 on the catch. The washer 34: is held in position by a shoulder adjacent the upper end of the catch. At the side of the frame opposite the catch 31 is fixed a stud 35 projecting above the frame.

Secured to the frame and disposed centrally of the cam plate 25 is a bolt 36 which, when the seat supporting plate has been placed on the base, passes through the slot 17 in the supporting plate. The bolt 36 is provided with a head 37 which prevents removal of the supporting plate after the .members have been assembled.

As shown in Fig. 1 the various parts of the chair and base are in their normal position, thechair being securely locked to the base by the catch 31 and stop piece 27, the latter lying within the recesses 38 in the tilting cam 13. Lugs 39 on the cam 13 rest under the stop piece 28, further locking the chair against tilting movement.

When it is desired to reverse the position of the chair, that is, rotate the chair through an arc of 180, the foot-lever 30 is depressed, moving the catch 31 out of the path of the supporting plate 11. As the chair is given its initial turning movement the flange 15, abutting the stud 35, forces the supporting plate and chair towards the end opposite of the stud 35. At the same time the cam 13 and lugs 39 disengage the stops 27, 28. Further rotation of the chair causes the followers 18 to engage the edge of the cam 25 and the cam 13 to ride up on the bevelled edge (marked as) of the flange 26, the chair being thus tilted to a position in which the back of the chair is approximately vertical. As the chair approaches a position opposite its original position the followers 18, engaging the cam 25, draw the chair toward the stud 35 until the other of the flanges 15 engages the stud 35. In the reversed posi tion of the chair the tilting cam 13 is again locked by the stop pieces 27 and 28 and the catch 31 automatically returns to its locking position and locks the chair.

It will be apparent from the above description that a chair capable of being turned through an angle of 180 without necessarily spacing the chair from the side of the car is provided. The invention also permits comparatively close spacing of adjacent chairs inasmuch as the chair backs are automatically tilted to permit the chair backs to clear each other. The above described chair is simple of construction and easily operated, it being only necessary-to depress a foot-lever and start the chair in its turning movement, the lateral displacement of the chair both from and towards the side of the car being taken care of automatically by the cam and cooperating followers.

While apreferred form of the invention has been disclosed it is obvious that the construction may be so modified as to fall within the scope of the appended claims.

What I claim is: o

1. A car chair comprising in combination, a base member, a seat member rotatably secured to said base member, and means on said members for simultaneously tilting said seat member about a horizontal axis and imparting a translatory movement to said seat member relatively to said base member upon rotation of said seat member.

2. A car chair comprising in combination, a base member, a seat member rotatably secured to said base member, means on said members for simultaneously tilting said seat member about a horizontal axis and imparting a translatory movement to said seat member relatively to-said base member upon rotation of said seat member, and means on said base member to prevent tilting and rotation of said seat member when said seat member is in its normal position.

3. A car chair comprising in combination, a base frame, a seat support-ing frame rotatably secured to said base frame, a seat, means for hingedly securing said seat to said seat frame adjacent the front edge of said seat, a

back portion secured to said seat, one of said frames being provided with a cam member for tilting said seat and said back portion about the axis of said securing means upon rotation of the supporting frame, and cooperating means on the other of saidframes and said cam member to prevent tilting of the seat when said seat is in its normal position.

4. A car chair comprising in combination,

a base member, a seat member rotatably secured to said base member, follower means on said seat member, a cam on each of said members, one of said cams cooperating with the 'base member to tilt said seat member

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