US1760365A - Chair - Google Patents

Description

C. V. KING y'my 27, 1930.

CHAIR Filed Sept. 24, 1928 2 Sheets-Sheet l ATTORN EYS May 27, 1930. C. v. KING 1,760,365

CHAIR Filed Sept. 1928 2 Sheets-Sheet 2 Patented May 27, 1930 UNITED STATES PATENT CHAIR Application led September 24, 1928. Serial No. 308,052.

My invention relates to improvements in chairs or the like and more particularly it relates to chairs having arms with a transverse member such as a tray extending between the arms.

An object of the invention is to provide durable means of simple construction for readily effecting connection and disconnection of the tray or other transverse member relative to the arms ot the chair.

Another obj ect is to provide a tray or transverse member with means for readily adjusting the tray to diderent positions along the arms.

Other objects will appear hereinafter.

The invention consists in the features, combination, and arrangement of parts hereinafter described and particularly pointed out in the claims.

In the drawings:

Figure 1 is a view of the chair with the tray thereon.

Fig. 2 is a plan view of the tray.

Fig. 2 is a front elevation of Fig. 2.

Fig. 3 is a sectional detail of the tray.

Fig. 4 is a plan view of the tray in position on the arms of the chair.

Fig. 4a is a front elevation of Fig. 4.

Fig. 5 is a plan view of one of the arms showing the pin receiving holes therein.

Fig. 5a is an end view of Fig. 5.

Fig. 6 is a plan view of the apertured locking bar.

Fig. 6L Fig. 6.

Fig. 7 is a transverse sectional view showing the interconnection of the tray, arm, and locking bar.

Fig. 7a is a view similar to Fig. 7 with the parts in unlocked position.

Figs. 8 and 9 are views of the under side of t-he arms with the plates thereon.

Figs. 8ft and 9aL are end views ot Figs. 8 and 9. j

Fig. 10 is a detail of the locking bar.

Fig. 11 is a detail view of a preferred form of the invention.

Fig. 12 is a view of the locking bar or plate used in the preferred form ot my invention.

Fig. 12a is a longitudinal section of Fig. 12.

is a longitudinal sectional view of Fig. 13 is a View of the channel bar which overlies the locking bar.

Fig. 132L is an end view of Fig. 13.

Fig. 14 is a plan view of the arm of the chair.

Referring to the drawings, tray which extends between and is adapted to be attached to the arms 3 of the chair. The tray is provided at 'each end with a depending pin or stud 2 having an enlarged head 2a at its lower end providing a shoulder 2h.

The arms 3 of the chair are each provided with a series of holes along their inner edges for selective reception of the studs 2 of the tray, whereby the tray is adjustable to diiierent distances from the back oi the chair.

In Figs. 1 to 10, the studs 2 are of sufficient length to extend through the arms 3 and through an apertured locking bar or alate 4 slidably secured to the under side o the arms 3 by screws 5. The bar 4 is provided with slots 5 to receive the screws 5 and permit sliding movement relative to the screws 5, the heads of the screws providing retaining` shoulders r"or the bar 4. Keyhole shaped holes 4a, corresponding with the holes in the arms, are provided in the har 4, the circular portion of which is adapted to permit passage of the head 2a of the pin 2 and the slot portion of which is adapted to engage the shoulder 2l to prevent withdrawal of the pin 2 when the slot is disposed over the shoulder by sliding the locking bar.

In operation, the pin 2 on the tray is dropped into and through the selected hole a in the arm 3 and the locking bar being adjusted (rearwardly in the embodiment shown in Figs. 1 to 10), to cause the circu- 1 represents the lar portions of the keyhole apertures 4a to register with the holes 3a in the arms, the pins 2 will drop therethrough and the tray is then seated on the arms. The locking bar is then adjusted (forwardly in Figs. 1 to 10) to cause the slot portion of the keyhole apertures 4n to engage the shoulders 2b of the pin 2, and the tray is then locked to the chair.

A preferred embodiment of my invention is shown in Figs. 11 to 14 in which the tray 1 is provided with relatively short studs or Yand with the pins pins 2 and in which the top surface of the arm 6 of the chair is cut away along its inner edge to receive a channel member 3 and is further cut away below the channel member to provide groove 7 and elongated hole 8 to receive the heads of the pins 2 and the handle 5', respectively.

In this embodiment of the invention, the locking bar 4 ovcrlies and bridges the openings 7 and 8 and is covered by the inverted channel 3.

The handle 5 is rigid or integral with the locking bar 4 and extends downwardly through the elongated hole 8 to provide an operating handle below the arm.

Screw holes 9 are provided in the channel 3 for receiving screws 5 to rigidly secure the channel to the arm and the screws pass through the slots 5 in the locking plate 4.

This embodiment of the invention has the advantage that nothing appears below the arms but the handles 5.

The operation is exactly the same as in the embodiment shown in Figs. 1 to 10 with the exception that the lookin bar is moved in the opposite direction forocking due to the ke hole apertures being inverted.

It will be understood that each arm of the chair and each end of the tra-y are similarly constructed.

I do not wish to limit my invention to the exact embodiments shown in the drawings as it willf be apparent that many modifications may be made without departing from `the spirit and scope thereof.

It will be understood that more than one n can be used on each side of the tray and at the locking bar can be made to operate either way, depending on the position of the slot, which may be placed on either side of th'e hole in locking bar.

As shown in Flgs. 1, 2, 2, 3, 4, and 11, the fray is of such dished shape that it will readil'y Seek its seat between the arms in applying it thereto. In applying the tray to the arms, the outer faces of the inclined sides of the tray will tend to guide the tray into seated position between the arms with the side flanges of the tray resting on the arms 2 inserted in the aper- The outer sides of the dished portion of the tray thus tends to guide the tray into proper position on the arms.

,l claim:

l.y In combination with a chair having arms, a tray or the like extending between the arms, said tray member having a dependg p1n at each end, said pins having' enheads at their lower ends, said arms so eac having a rectangular recess in its top Surface along its inner edge, the bottom of id 'e'c'ess' having a roove therein for reoivi the heads of tie pins, a locking bar ldab e on the bottom of said recess and idging the groove, a channel member in said recess inverted over the locking bar, said channel bar being rigidly secured to said arm and having a series of holes for selectively receiving said depending pin, said locking bar having a series of shaped holes therein corresponding to the holes in said channel, the circular portions of the said keyhole .shaped holes being adapted to register with the holes in the channel to permit passage ofthe head of the pin therethrough and the slot portions of the keyhole shaped holes being adapted when positioned above the head of the pin to prevent withdrawal thereof, said locking bar having a handle depending therefrom and said arm having an elongated slot for permitting slidable passage of said handle.

In combination, a chair having arms, a perforated plate fixed in the upper surface of each of said arms, there being a recess in each arm' to receive the plate and a groove in the bottom of the recess, a locking bar having key openings and slidably mounted in the recess in said arm immediately below the plate and between the plate and the arm, and a tray having pins to pass through selected perfor-ations of the plates and the openings in the locking bar and into said groove, said pins having enlarged heads at their lower ends, and a finger piece for operating the locking bar.

3. Apparatus according to claim 2 in which said finger piece extends downwardly from said locking bar and said arm has a slot for receiving said finger piece and permitting movement thereof longitudinally of the arm.

4. In combination with a chair having arms, a tray or the like extending between the arms, said tray member having a depending pin at each end, said pins having enlarged heads at their lower ends, said arms each having a rectangular recess in its top surface along its inner edge, the bottom of said recess being further cut away to receive the i heads of the pins, a locking bar slidable on the bottom of said rectangular recess, a channel member in the said rectangular recess inverted over the locking bar, said channel bar being rigidly secured to said arm and having a series of holes for selectively receiving said depending pin, said locking bar having a series of key hole shaped holes therein corresponding to the holes in said channel, the enlarged portions of the said keyhole shaped holes being adapted to register with the holes in the channel to permit passage of the head of the pin therethrough and the slot portions of the keyhole shaped holes being adapted when positioned above the head of the pin to prevent withdrawal thereof, said locking bar having a handle depending therefrom and said arm having a slot for receiving said handle and permitting movement thereof longitudinally of the arm.

key hole 5. In apparatus according to claim 2, said tray comprising a, dished portion extending between the arms and side iange portions resting upon thearms, said pins depending from said side ange portions, the sides of said dished portion serving to guide the tray to seatedposition upon the arms.

In testimon whereof, I aiix my si nature.

ARLTON VANCE ING.

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