US1797525A - Dowel holder - Google Patents

Description

March 24, 1931. v -w.'F. EYLES 1,797,525

DOWEL HOLDER Original Filed Got. 10, 1927 William F. Egg.

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' h'wenTor Patented Mar. 24, 1931 UNITE TES WILLIAM F. EYLES, OF WYOMING PARK, MICHIGAN DOWEL HOLDER Application filed October 10, 1927,5eria1 No. 225,192. Renewed June 29, 1929.

This invention relates to a holder particularly adapted for use in holding the ends of chair rungs to the other parts of the chair to which they are attached, whereby the same will not break loose readily and through which a very permanent and secure connection may be made. The holder is .also available in any place where a dowel-like member is inserted in an opening therefor and is not limited in its use to connecting chair rungs.

It is a primary object and purpose of the present invention to provide a very simple device to be used in connection with the end of a chair rung or dowel, which may be driven with said end of said rung or dowel into an opening bored to receive it in another member, said device acting to lock the parts against disengagement.

A further object of the invention is to produce said device from sheet metal by use of proper tools and dies whereby the same may be manufactured at an extremely low cost. These and various other objects and purposes than those above stated will appear fully and in detail as understanding of the invention is had from the following description taken in connection with the accompanying drawing, in which,

Fig. 1 is a partial vertical section and side elevation illustrating a part of a chair leg and of a chair rung separated, the holder of my invention being applied to the rung.

Fig. 2 is a similar view showing the rung inserted in an opening in the leg and illustrating the position of the holder when this has occurred, and

Fig. 3 shows in perspective one end of the chair rung and two halves of the holder which are to be applied thereto.

Like reference characters refer to like parts in the different figures of the drawing.

A chair leg 1 is illustrated as having a cylindrical opening 2 bored in one side thereof. The rung 3 at its end shown has a cylindrical end portion 4 around which, at a short distance from the end of the rung a continuous narrow annular groove is cut.

The holder of my invention which is to be used in conjunction with the groove 5 described, comprises two sections which are duplicates of each other.

Each includes a semi-circular flat ring portion 6, from which, at its outer edges, a plurality of tangs or spurs 7 extend, the same being bent to lie at an angle somewhat exceeding 90 totheplane of the ring 6. Two of these members may be applied to the chair rung by inserting the flat portion 6 into the groove 5 which isof a width to freely yet fairly snugly receive the same. Inasmuch as each part 6 is of semi} circular form each of theholding members, will extend around onehalf of the end it of the chair rung and the two will'completely encircle the same. 7

As thus applied the tangs or spurs 7 are turned back from the end of the chair rung and lie at a slight angle to the sides thereof. It is apparent that the end 4 of the rung may, be inserted into the openingQ and driven therein, the spurs 7 easily passing into the opening. If, however, any attempt is made to withdraw the rung, the spurs. gouge into the wood in the sides of the opening. 2 and insure a secure and firm connection of the rung3to the leg 1. i 7" While the construction has been described as of particular utilityin connectionwith the attachment of chair rungs in a chair construction, it is very evident that the holder of my invention will be of great utility in the manufacture of many and'various other articles of furniture. It can be used with dowel pins quite as well as with chair rungs. As a matter of fact the end of the chair rung where it enters the opening in a chair rung or other opening of a chair in itself has every characteristic feature of a dowel. The invention accordingly is not to be limited to use in chairs alone.

This invention is one of great utility. The common practice is to glue dowels or the ends of chair rungs in the openings in which they are placed. The glue is subject to rupture and many times,in fact nearly always, after the chair or other article of furniture has been in service for a short time the joints are broken and the chair rungs become loose allowing the parts entering into the construction of the chair to separate. The holder which I have invented is very simple to manufacture and the cost thereof is almost negligible. The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope.

I claim:

1. In combination with a member having a cylindrical opening, a second member having a cylindrical shaped end adapted to enter and closely fit within said opening, an annular groove in said cylindrical member,

both walls of said groove extending at right angles to the axis of said cylinder to the pe riphery thereof and a holding device of fiat metal including a flat ring portion located in said annular groove and a plurality of spurs bent from the outer edge of said ring portion backwardly over the outer periphery of the cylindrical member and away from the end thereof, said cylindrical member with said holder applied thereto being adapted to be driven into the opening in said first member.

2. In combination with a member having a cylindrical opening, a second member having a cylindrical shaped end adapted to enter and closely fit Within said opening, an annular'groove in said cylindrical member, both walls of said groove extending at right angles to the axis of said cylinder to the periphery thereof and a holding device of flat metal including a fiat ring portion located in said annular groove and a plurality of spurs bent from the outer edge of said ring portion backwardly over the outer periphery of the cylindrical member and away from the end thereof, said spurs normally lying slightly inclined away from the periphery of the cylindrical member, said cylindrical member with said holder applied thereto being adapted to be driven into the opening in said first member.

In testimony whereof I aflix my signature.

WILLIAM F. EYLES.

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