US1630492A

US1630492A - Connection for tubes

Info

Publication number: US1630492A
Application number: US718716A
Authority: US
Inventors: Kusterle Frank
Original assignee: Simmons USA Corp
Current assignee: Simmons USA Corp
Priority date: 1924-06-09
Filing date: 1924-06-09
Publication date: 1927-05-31
Anticipated expiration: 1944-05-31

Description

' 1 630492 May 31, 1927. F KUSTERLE CONNECTION FOR TUBES Filed June 9. 1 924 Patented May 31, 1 927.

UNITED STATES PATENT OFFICE.

FRANK KUSIERLE, OI KENOSHA, WISCONSIN, ASSIGNOR T0 SIMMONS COMPANY, OF

KENOSHA, WISCONSIN, A CORPORATION OF DELAWARE.

CONNECTION FOR TUBES.

Application filed June 9, 1924. Serial No. 718,716.

This invention relates to the joining bf light-weight metal tubes and more particularly the types used in the construction of metal furniture such as chairs, bedsteads, etc, and has for its primary object to provide a simple/strong and economical oint which is attractive in appearance.

Further objects are to facilitate the welding, brazing or soldering operation, to conceal the joint, to strengthen the tubing at the joint, to insure the proper positioning of the tube sections, and to join tube sections of difi'erent sizes and shapes as, for example, a square tube with a round tube.

The many other objects and advantages will be better understood by reference to the following specification when considered in connection with the accompanying drawing illustrating certain selected embodiments thereof, in which ll ig. 1 is a top plan View of a portion of a chair frame embodying certain principles of my invention.

Fig. 2 is a perspective view of the leg construction illustrated in Fig. 1.

Fig. 3 is a partial section on the line 3-3 of Fig. 1, and

Fig. 4 is an elevation of a portion of a bedstead frame in which my improved jolnt is incorporated.

Referring to the drawing and particularly Figs. 1 to 3, the joint is used to-connect a round tube section as 5 to a length or section of square tube as 6. The section 5 is one of the ornamental legs of a chair and the section 6 is a portion of the frame which is to be connected to the upper end of said leg and in alignment therewith. The section 5 is preferably provided with a parallel extension 7 of proper diameter to fit snugly within thesection 6 when the sections are assembled. 7

A stamped mount 8 of proper size and she. e to fit snugly over the lower end of section 6 is slid overthe upper end of the section 5 and forms a substantially cupshaped socket to receive and fit about the lower end of the section 6. The bottom wall of this mount forms an abutment on which the end of the section 6 rests and is apertured to fit snugly around the extension 7. The tube section 5 is preferably provided with an enlazlgement forming a shoulder 10 to support e downward thrust imposed upon the mount.

end of the section 5 in axial alignment until this end of the section 6 is seated in the socket formed by the mount 8. Thus the sections are accurately positioned relative to each other. The sections may be permanently connected together in various ways, but I prefer to weld the upper end of the extension 7 to the opposing wall of the section 6 as at 12. l have used the term Weld to include braze. solder or otherwise fasten. The mount 8 while concealing the joint, also forms an ornamental trim around the lower end of the tube 6. A joint of this character is particularly advantageous with light weight tubing such as is generally used in metal furniture.

In the present embodiment, the section 6 is cut away as at 13 and 14 to admit the frame members 15 and 16 respectively of the chair frame. These members are preferably welded to the leg and to each other as at 17.

In Fig. 4 is illustrated the application of my invention to bedstead construction. The leg section 18 of round tubing is connected to the square post section 19 in the same manner as with the

sections

5 and 6 of the previous embodiment.

While the principles of my invention arc applicable to joints for various tube sections, they are particularly aduantageous where the sections are of diife-rent shape. It will be readily evident from the foregoing description that my improved joint is simple, strong and economical as well as attractive in appearance.

The described details of construction bein merely illustrative of my invention, it will be understood that the scope of the invention should be determined by reference to the appended claims, said claims being constructed as broadly as possible consistent with the state of the art.

I claim as my invention:

1. In a structure of the class described, the combination of a tube, a mount secured on said tube at an interval from its end, a secondtube of a larger size and different shape telescoping the end of the first mentioned Inc of sai larger tube and a welded connection between the telescoping ends of the tubes.

2. In a structureof the class described, the combination of a tube, a mount fittin said tube and welded thereon at an interva from the end, a second tube telescoping the end of the first mentioned tube and having its end abutting said mount, and a welde connection between the telescoping ends of the tubes, said mount being provided with an ed I ends of said tubes.

4.-In a structure of the class described, the combination of a tube having, an annular shoulder formed thereon adjacent one end, a mount fitting around the outside of said tube and abutting said shoulder, a welded connection between said tube and said mount, a second tube having its end fitting in said mount, said first mentioned tube having an extension rojecting into the second tube, and a wel ed connection between said extension and said second tube.

5. In a structure of the class described, the combination of an inner tube having an annular shoulder portion intermediate its ends and projecting outwardly beyond an adjacent portion of said tube, a mount a rtured to fit said portion and supporte by said shoulder, and an outer tube of different shape telescoping over said portion of the first mentioned tube, and having its end seated against said mount,,said mount having'an outer portion shaped to conform with the shape of the second tube.

6. In a structure of the class described, the combination of an inner tube having an annular shoulder portion intermediate its ends and projecting outwardly beyond an adjacent portion of said tube, a mount apertured to fit said ortion and supported by said shoulder, an an outer tube of different shape telescoping over said portion of the first mentioned tube, and having its end seated against said mount, said mount having an outer portion shaped to conform with the shape of the second tube, and having a flange for enclosing the seated end of the last mentioned tube.

FRANK KUSTERLE.