US1540616A - Adjustable seat - Google Patents

Description

C. H., HAGOPIAN ADJUSTABLE SEAT Filed DeC. '7I 1923 June 2, 1925.

' lNvENToR v ATTORNEYS Patented June 2, 1925.

CHARLES H. HAGOPIAN, OF SPRINGFIELD, MASSACHUSTTS.

ADJUSTABLE SEAT.

Application led December 7,1923. Serial No. 679,230;

' 10 all whom t may concern.'

Be it known that I, CHARLES H. HAGOPIAN, a citizen of the Republic of Armenia, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Adjustable Seats, of which the following is a specification.

The' invention relates to adjustable seats and particularly to the type having a support and a seat movable therein that is adapted to be held in various positions of a dj ustment.

The object of the invention is the provision of a device that is easily moved by hand to any desired adjusted position and in which it is held by means associated with the support and seat.

Another object of the invention is the provision of holding means that are released g from holding engagement as the seat is moved to its most elevated position and that allows the seat to be lowered without the manual disengagement of the holding mechs anism. Other objects and advantages will be obvious from the following description and accompanying drawings in which:

Fig. 1 is a side elevational view of an adjustable seat embodying my invention,

Fig. 2 is a sectional elevational view taken on line 2--2 of Fig. 1,

Fig. 3 is an enlarged sectional view taken on line 3-3 of Fig. 2, and

Fig. 4 is an enlarged elevational view of a portion of one of the guide members showing the Vpawl pivoted thereto, and Fig. 5 is a perspective view of the holding plate.

Referring to the drawings in detail the invention will now be described.

Upright posts 1 are provided that are disposed two at either end of support. They are secured rigidly together by the side bars 2 and end bars 3 in such a manner that they form a rigid seat supporting member. The` said posts are shown as being rectangular in cross section but may be made in any form desired or ornamented in any desired manner. Other end cross bars 4 are secured to the posts 1 at the ends of the support and are spaced from the members 3 as best shown in Fig. 3. The space between the inner or adjacent faces of the saidmembers 3 and 4 serve as guideways 4 for the tongues 5 of the movable seat 6.

The said seat 6 preferably comprises a fiat bench-like member as shown having two downwardly extending guides or tongues 5 that are slidably carried in the before mentioned guideways 4. The seat by the means of thesaid tongues and guideways is held in a level plane during a 'lowering orraising movement. Holding plates 7 are fixed to each of the posts 1 at a point adjacent the ends of the guideways 4. These plates v 7 v comprise a substantially dat rear wall that is encircled by side and end walls or flanges 9 and 14. A central bar portion B is carried by the plate 7 thatis provided on its forward face with holding notches 8 while the ends of the bar portion is curved at 16 and 17 as best shown in Fig. 5'. The side wall 9 of the plate is preferably shaped to form nose guides 10 adjacent the holding notches 8 while the wall at the rear of the bar is spaced from the rear side 7 of the bar portion B to form a guideway 15 therewith. 1

Pawls 11 pivoted at each end of the tongues- 5 by the-means of screws 12 or'the like carry on their outer end a notch engaging pin or plug 13. As the seat is grasped by hand and raised to an elevated position, the nose portions 10 of the platesv guide the pins 13 into the various notches 8 and in any one of which the pins may rest to support the seat in an elevated position.

In operation the seat 6is grasped by the hands for a raising movement and the pawl pin is guided bythe nose portion 17 into the various notches 8 whereby the seat may be supported by the pawl and notches in various elevated positions. To lower the seat it is raised to the limit of its movement wherein the pawl pin 13 strikes the curved portion of the flange at 19 and which prevents a further raising movement. The seat may then be lowered to its lowermost position during which movement the pawl and pin are guided into the channel 15 by the means of the guiding curved end 16 of the plate. j f

It will be readily obvious that many changes may be made in the form of the invention without departing from the scope pavvl engaging notches in one side thereof` able in said guideways, whereby the seat may be moved vertically of the support, pawls pivoted at opposite sides of each of said guides, plates carried by thesupport at either end of said guidevvays'each having a central boss portion that is provided With and a flange extending around the boss to form a notch guide at the notched side of the boss and a channel yat the rear sine 1o InA testimony whereof I have allixed my 15 signature.k

CHARLES H. HAGOPIAN.

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