US1688636A - Ironing board - Google Patents

Description

J. E. KALGREN IRONING BOARD Oct. 23, 1928.

s Sheets-Sheet 1 Filed Sept. 17, 1927 W M L Jbbn 1Z5 170 9 Oct. 23, 1928. 1,688,636

J. E. KALGREN IRONING BOARD Filed Sept. 17, 192.7 3 Sheets-Sheet 2 122m Jofin 17. [219F611 Oct. 23, 1928.

J. E. KALGREN IRONING BOARD Filed Sept. 17, 1927 3 Sheets-Sheet 3 tit) Patented Oct. 23, 1928.

warn-1|) STATES PATENT OFFICE. I

JOHN E. KALGREN, MINNEAPOLIS, MINNESOTA, ASSIGNOR TO THE J. R. CLARK:GO.,

' OF MINNEAPOLIS, MINNESOTA, A CORPORATION 015 MINNESOTA.

IRON ING BOARD.

Application filed September 17, 1927. Serial No. 220,272.

My present invention relates to ironing boards and provides an ironing board that is of simple construction, easily set up and taken down, which is very rigid when set up, and WlllCll may be folded into a minimum of space, thereby adapting a large number thereof to be shipped as a carload.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a perspective showing the improved board set up for use;

Fig. 2 is. a longitudinal vertical section taken through the boardpn the line 2-2 of Fig. 1'

Fig. -3 is a bottom plan view of the board, showing the same taken down or folded into flat forms;

Fig. 4 is a transverse vertical section taken approximately on the line 4-4 of Fig. 2, some parts being shown in full;

Fig. 5 is a fragmentary section taken on the line 5-5 of Fig. 1;

Fig. 6 is a fragmentary section taken on the line 6-8 of Fig. 3, but showing the parts in the positions that they occupy when the board is set up for use;

Fig. 7 is a fragmentary vertical section taken approximately on the line 77' of Fig. 1; and

Fig. 8 is a fragmentary view in perspective showing the free end of what ma be designated as "the inclined top brace o the ironing board.

The chief elements ,of this ironing board are the top board 7, the rear legs 8, the inclined third leg 9, the inclined top brace 10 and the bottom brace 11. The rear legs 8 are pivoted to the rear end of the board 7 and as a highly eficient means for alfording this pivotal connection, a strap-like metal anchor bracket 12 is' riveted or otherwise rigidly secured to the bottom of said board and is provided with obliquely downturned ends 12 that afiord hinge lugs. Supplemental hinge lugs 12 are riveted, welded or otherwise rigidly secured to the strap 12 and extend parallel to the cooperating lugs 12* from which they are slightly spaced, so as to permit the legs 8 to be inserted between the said lugs and to be pivotally connected thereto by pin rivets or bolts 13. The oblique lugs on the opposite sides of the board flare downwardlyfrom each other so that the legs 8, when turned down, will be given a spread and their lower ends engaged with the floor a distance greater than the width of the board and when the legs 8 are folded against the bottom of the board, said legs w1ll be parallel and rest within the transverse dimension of the board. These two relative positions of the legs 8 are clearly illustrated in Fi s. 1 and 3.

To revent excessive spread y lateral springlng of the legs 8 when said legs are turned down,'there'is provided a pair of rod-like rear leg braces 14, the upper ends of which are passed through and loosely pivoted to an anchor 15 shown as in the form of a U-shaped metal strap rigidly secured to the bracket-forming strap 12.

The lower ends of the brace rods 14 are passed freely through stop lugs 16 shown as in the form of angle pieces riveted to the legs 8 at their intermediate portions. The extreme ends of the rods 14 are upset or formed with heads and the arrangement is such that when the legs 8 are folded against the board 7 the lower ends ofthe brace rods 14 will move slightly but freely through the lugs 16. n

This ironing board has three supporting legs, to wit: the two legs 8 and the inclined leg 9. This leg 9, at its upper end, is pivotally connected to bracket-like lugs 17 riveted or otherwise rigidly secured to the bottom of the board 7 at a point'that is preferably slightly forward of the rear leg pivots.

The inclined top brace 10 is a bifurcated or two-part member shown as composed of two straight bars tied together at their free ends by a link 18 and at their lower rear ends pivotally connected one to each leg 8 by a pivot bolt or rivet 19, which also pivotall' connects to the inner side of the correspond ing leg 8 a. channel-shaped guide head 20. The bottom brace 11 is a bifurcated member in the form of a heavy wire or light rod, the arms of which work freely through aligned perforations in the respective channel-shaped guide heads 20, and at the rear thereof are formed with stop heads 21. The front portion of this brace 11 embraces the lower end of the inclined leg 9 and the bow thereof is pivotally connected thereto, being preferably seated in a notch formed therein and secured to said leg by a ll-shaped staple The board is set up by pressing the free end of the top brace 10 into interlocking engagement with a stop cleat or strip 23 rigidly secured to the bottom of the board 7; and when the parts are thus set up, the arms and the braces will be put under tension or stress so that they will rigidly support the board. The rear legs 8, because of their pivots, will be spread when turned down, and under the weight of the board, W111 tend to'further spread, but the spreading movement thereof will be positively limited by the rear leg braces 14. A yielding element such as a rubber button 24, best shown in Fig. 6, is applied to theshort upper end of the inclined leg 9 and, by engagement with the bottom of the board, compensates for variations in the adjustments of the legs and braces. The arms of the bottom brace 11, at their rear ends, are formed with-stop heads 11 that engage the guide heads 20 so as to cause the brace 11 to be put under tensile strain when the board is set up. The

guide heads are preferably pivotally connected directly both to the rear legs and to the top brace, but from a broader point of.

view, the arms of the bottom brace are mounted for pivotal and. sliding movement in respect to said rear legs and top brace.

Obviously, the board may be quickly set up, quickly folded, when set up will be very rigid, and when folded will be in flat formation and within a minimum of space.

What I claim is:

1. The combination with a board, of rear legs pivoted to the rearv end of said board, a third leg ivoted to said board and forwardly inc ined in respect to said rear legs, a top brace pivotally connected to said rear legs and arranged to be detachably secured to the bottom of said board at its free end,

uide heads pivotally mounted on said rear egs, and a bottom brace pivotally connected to the lower end of said inclined third leg and having arms supported by and arranged to slide through said pivoted guide heads and which are put under tension when said top brace is secured to the board.

2. The combination with a board, of rear legs pivoted to the rear end of said board, a thlrd leg pivoted to said board and forwardly inclined in respect to said rear legs,

a top brace pivotally connected to said rear legs and arranged to be detachably secured to the bottom of said board at its free end, guide heads pivotally mounted on said rear legs, and a bottom brace pivotally connected to the lower end of said inclined third leg and having arms supported by and arranged to slide through said pivoted guide heads and which are put under tension when said top brace is secured to the board, said guide heads, rear legs and top brace being pivotally connected by a common pivot at each side of legs and arranged to be detachably secured to the bottom of said board at its free end, guide heads pivotally mounted onsaid rear legs, a bottom brace pivotally connected to the lowerend of said inclined third leg and having arms'supported in and arranged 'to' slide through sai guide heads and which are put under tension when said top brace is secured to the board, and rear leg braces connected to said legs at their lower ends. I

and at their upper ends pivotally connected b pivots that are approximately .axially a igned with both rear leg'pivots.

' 4. The combination with a board, of rear legs pivoted to the rear end of said board, a third leg pivoted to said board and forwardly inclined in respect to said rear legs, a top brace pivotally connected to said rear legs and arranged to be detachably secured to the bottomof said board at its free end, guide heads pivotally mounted on said rear legs, a bottom brace pivotally connected to the lower end of said inclined third leg and having arms supported in and arranged v to slide through said guide heads and which are put under tension whensaid top brace is secured to the board, downwardly flared hinge lugs secured to said board, said rear legs being pivotally connected to said lugs whereby said legs will be spread when turned down and will be moved closer together when turned up against the board, and rear leg braces set at an angle to said rear legs, slidably connected to said rear legs at their lower ends and at their u per ends pivotally connected to said board y pivots approximately axially aligned with the rear leg pivots.

5. The combination with a board, of an anchor bracket rigidly secured to the bottom ofthe rear end portion thereof and formed at" each-end with spaced downwardly diverging'hinge lugs, rear legs each .pivoted between a pair of said hinge lugs and arranged to be spread when turned downward, rear leg braces extended at an angle to said legs and slidably connected to said legs at their lower ends and at their upper ends pivotally connected to said bracket by pivots approximately axially aligned with both rear leg pivots, a third leg pivoted to said board, and braces co-operating with said legs and said top to hold said top in approximately horizontal position.

6. The combination with a board, of an anchor bracket rigidly secured to the bottom of the rear end portion thereof and formed at each end with spaced downwardly diverging hinge lugs, rear legs each pivoted between a pair of said hinge lugs and arranged to be spread when turned downward, rear leg braces extended at an angle to said legs and slidably connected to said legs at their lower ends and at their upper ends pivotally connected to said bracket by pivots approximately axially aligned with both rear leg pivots, a third leg pivoted to said board and inclining forwardly from said rear legs,.a

bifurcated top brace pivotally connected to said rear legs and detachabl secured to said board, and a bifurcated ottom brace pivotally connected to the lower end of said inclined leg and pivotally and slidably connected to said rear legs and top brace and which is put under tension when said top brace is secured to said board.

In testimony whereof I aifix my signature;

JOHN E. KALGREN.

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