US 2895537 A
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July 21,' 1959 H. B. DAVIDSON INFANT CHAIR ATTACHMENT FOR A TABLE Filed Jan. 23, 1956 ZSheets-Sheet 1 I t INVENTOR H.B.,D a viis o n ATTORNEYS July 21, 1959 H. B. DAVIDSON INFANT CHAIR ATTACHMENT FOR A TABLE Filed Jan. 23, 1956 2 Sheets-Sheet 2 63 I 7J 7 L3 I 76 a3 69 0 57 M ATTORNEYs United States Patent INFANT CHAIR ATTACHMENT FOR A TABLE Haskell B. Davidson, Oklahoma City, Okla. Application January 23, 1956, Serial No. 560,711 '1 Claim. (Cl. 155-78) The present invention relates to infant chair attachments for tables, and more particularly, to chairs of the type which can be collapsed under the table when not in use.
The prment invention is of the same general nature as my copending application, Serial No. 556,844 filed January 3, 1956, and entitled Infant Chair Attachment for a Table.
The primary object of the invention is to provide an infant chair which can be secured to the edge of a table so that the infant may feed from the table.
Another object of the invention is to provide an infant chair attachment for a table having means to permit the chair to be swung to a storage position beneath the table.
A further object of the invention is to provide an infant chair attachment for a table which is supported by the table on one side and by a single floor engaging leg on the other.
A still further object of the invention is to provide an infant chair attachment for a table having a horizontally and angularly adjustable back and a vertically adjustable seatto adapt the chair for infants of different sizes.
Another object of the invention is to provide an infant chair of the class described above which will be inexpensive to manufacture, easy to assemble and use, and completely safe for the infant.
Other objects and advantages will become apparent in the following specification when considered in the light of the attached drawings, in which:
Figure 1 is a side elevation of the invention shown attached to a table with the table illustrated in crosssection and broken away.
Figure 2 is a rear elevation of the invention with the table shown broken away.
Figure 3 is an enlarged horizontal cross-section taken along the line 3-3 of Figure 1, looking in the direction of the arrows, with parts broken away for clarity.
Figure 4 is a vertical cross-section taken along the line 4-4 of Figure 1, looking in the direction of the arrows, partially broken away.
Figure 5 is an enlarged fragmentary cross-section taken along the line 55 of Figure 3, looking in the direction of the arrows.
Figure 6 is an enlarged fragmentary vertical crosssection taken along the line 6-6 of Figure 4, looking in the direction of the arrows.
Figure 7 is an enlarged fragmentary transverse crosssection taken along the line 7-7 of Figure 2, looking in the direction of the arrows.
Figure 8 is an enlarged fragmentary transverse crosssection taken along the line 8-8 of Figure 1, looking in the direction of the arrows.
Figure 9 is an enlarged fragmentary vertical crosssection taken along the line 9-9 of Figures 3 and 4, looking in the direction of the arrows.
Figure 10 is an enlarged fragmentary vertical crosssection taken along the line 1010 of Figure 3, looking in the direction of the arrows.
Referring noW to the drawings in detail wherein like reference numerals indicate like parts throughout the several figures, the reference numeral 20 indicates generally a table of the type adapted to be supported on a plurality of legs, one of which is illustrated at 21.
The table 26 is provided with a depending flange 22 at the longitudinal edges thereof and is adapted to receive and support an infants chair, generally indicated by the reference numeral 23. The infant chair 23 comprises a tubular frame 24 having opposed side portions 25 and 26, and a rear portion 27. A flat plate 28 extends across the open end of the framework 24 connecting the sides 25 and 26. A plurality of cleats 29 depend from the underside of the frame 24 for purposes to be described.
A bracket Si) is secured to the underside of the rear member 27 of the frame 24 at the central point thereof. A leg 31 has the upper end of the upper portion 32 pivoted in the bracket 30 by means of a pivot 33. A collar 34 is positioned over the leg 31 and is adapted to telescopically slide over the bracket 30 to lock the leg 31 in axial alignment with the bracket 30. A spring arm 35 secured to the collar 34 carries a latch pin 36 which is engageable in an aperture 37 in the leg 31 to support the collar 34 in leg locking position.
A knob 38 on the spring arm 35 is utilized to pull the pin 36 from the aperture 37 when it is desired to collapse the chair. The lower end of the portion 32 of the leg 31 is pivotally secured to a connector member 39 by means of a pivot 40. The lower end 41 of the leg 31 is pivotally secured to the lower end of the connector mem ber 39 by means of a pivot 42.
A collar 43 is adapted to telescope over the connector 39 and extend over part of the upper portion 32 and the lower portion 41 of the leg 31, as illustrated in Figure 7, to lock the leg 31 in straight position. A stop 44 on the lower portion 41 of the leg 31 prevents the collar 43 from moving below the position illustrated in Figure 7.
A seat 45 is contoured to fit an infant and is provided with a depending peripheral flange 46 to afford additional strength to the seat 45. A pair of support straps 47 are looped through opposite cleats 29 and through apertures 48 in the flanges 46. The straps 47 are joined beneath the seat 45 by means of a buckle 49 of conventional construction. The bar 28 is apertured at St) and a crotch strap 51 extends therethrough and through an aperture 52 in the flange 46 of the seat 45. A buckle 53 of conventional construction secures the strap 51 in position.
A contoured back panel 54 is positioned between the sides 25 and 26 of the frame 24 forwardly of the back portion 27. The side member 25 is longitudinally slotted as at 55 and is adapted to receive a threaded shaft 56 which extends therethrough from the back 54 to which it is secured by rivets 57.
A washer 58 having an outer toothed face 59 is secured to the shaft 56 adjacent the back 54. A washer 60 having a toothed face 61 corresponding to the toothed face 59 is mounted over the shaft 56 with the toothed faces 59 and 61 in cooperative engagement. The outer face of the washer 60 is transversely curved at 62 to fit the side member 25 as illustrated in Figure 4. A wing nut 63 is engaged over the shaft 56 and secures the back 54 to the side member 25 with the inner fitted faces 59 and 61 looking to prevent relative rotation therebetween.
The side member 26 of the frame 24 is provided with a longitudinal slot 64 having a plurality of notches 65 extending downwardly therein. A shaft 66 in axial alignment with the shaft 56 is secured to the back 54 by means of rivets 67. The shaft 66 extends through the slot 64 and is adapted to engage in the notches 65. Obviously, the back 54 can be both angul-arly and longitudinally adjusted with relation to the frame 24 to adjust the seat for infants of different sizes.
A pair of clamps 68 are formed of general U-shape havingan upper-horizontal portion 69, a lower generally horizontal portion 70 connectedtby a vertical-portion 71.-- Atsthecjuncture of the horizontal portion 70 and the vertical portion1-71,',an ear=72-projects-downwardly for purposes to be described. A threaded shaft 73 is mounted by pivot 74 to the horizontal portion 70 of the clamp 68 and carries ahandle 75 at one end and-a table engaging *jaw 76 at its opposite end.
The pivotal attachment of the shaft 73 to the horizontal portion 70-=permits the table engaging portion 76 to be directed toward the juncture of the horizontal portion69 and thevertical portion 71 :as illustrated 'in- Fig tires 1 and 5, or to be swungto a vertical position to clamp the'table 20 in thatmanner. A pad 77 is po--- sitioned on the lower face of the horizontal portion 69 and theinner face of the vertical portion 71 to protect thetable.
A bracket 78 is adjustably secured to the forward portion of the sides 25 and 26 by means of securing;ele--- ments 79 which extend through. a slot 80 in the bracket" 78; The brackets 78 are provided with depending-arms 81 having portions 82 thereof positioned in face to-face relation with the ears 72of the clamp 68.
A pivot 83 secures one of the brackets78'to 0116 of the clamps 68, and a bolt 84 having a wing nut 85 secures the other bracket 78'to 'the' other clamp =68. The'tbracket 78,-havingthe bolt- 84 and Wing nut .85, is provided'with a-toothed face 86 which engages 'aitoothed" face 87 onthe ear 72 associated therewith so that-the pivotal adjustment of the bracket '78 with relation to the 1 clamp 68-can.be=locked at any desired point.
In. the use and. operation of the invention theinfant chair is normally positioned as illustrate'd'in Figure l so that an infanb seated therein can eat from the table 203 When-the meal is completed, the back54 is folded onto the frame-24 and'the-leg 31 is folded up under the seat 45. The bolt 84 and wing nut 85 are loosened to permit the frame 24 to be swung to the dotted line position as illustrated in Figure 1, and the wing nut 85 retightened to lock the chair 23 in this position.
Having thus described the preferred embodiment of the invention, it should be understood that numerous modifications and structural adaptations may be resorted to without departing frorn'the'scope of the appended claim? What is claimed is:
In an infant chain'attachmenffor tables a'cIamp for securinggthe chair toa table comprising, aportion for engaging over the table, a second portion for engaging under the table, a ntit"pivotall"y mounted on a horizontal axis on said second portion beneath the table, a set screw threaded through said nut, an inverted V-shaped head detachably secured to one end of said set screw for enga'ging tbe'neath the-table, and-handle meanson the other' end of said set screw fofloperating said-+set-- screw, said set: screw and saidnut beingtpivotally adjust- I able to cooperate with said portion engaging over-thetablet' 7 References Cited in-the fileof this patent UNITED STATES PATENTS 679,312 Harm'ori" July 30; 1901 961,311" Nelson; June14;19'iQ" 989,966 Hayden; APif18f19l1 1,606,541 Straifli NEW. '9," 19:26 1,664,958 Ze'iser Apr: 3, 19 2 8? 1,840,689 Baker- Jan. 12,1932 2,430,512 Johnson NevJIi, 1947 2,550,352" Hodgsori et-a'l Apr. 24, '-1951 7 2,578,879 DeYoun'g Dec.18,' 1951"" FOREIGN "PATENTS 19,1166 Great Britain L. 1896" 272,794 Switzerland L, Apr; 2, 1951 86,078 Great Biitain'l. Mnff'lf 192g