US2898471A - Table structure - Google Patents

Description

s- 1959 A. J. KIZAUR 2,898,471

TABLE STRUCTURE Filed Dec. 15, 1952 1NVENTORI-- ARTHUR -J KIZAUR. BY-'- FIG.2

ATTORNEY United States Patent 'TABLE STRUCTURE Arthur J. Kizaur, Pewaukee, Wis., assignor to General Electric Company, a corporation of New York Application December 15, 1952, Serial No. 326,033 1 Claim. (Cl. 250-54) The present invention relates in general to apparatus of the sort adapted for use in the examination, treatment and picturing of objects, such as the bodies of human patientsQby means of penetrating rays, such as X-rays, and the like, the invention having more particular reference to an improved tilting table structure for supporting bodies to be examined, treated or pictured, selectively in vertical, horizontal, and intermediate tilted positions to facilitate examination, photography, and treatment of a body supported on the table structure in position to be exposed to penetrating rays.

An important object of the invention is to provide a tiltable examination table structure including a table frame and a top panel carried by the frame in position to support an examination subject on said top panel.

Another important object is to provide improved means for anchoring a table top panel upon a supporting frame, comprising angulated slots formed at intervals along and inwardly of the edges of the panel, and opening upon the under side of the panel in position to receive clips having correspondingly angulated portions formed for removable reception in said slots, and fastening portions adapted for attachment upon the panel supporting frame of the table structure underspring tension to snugly draw and secure the panel on the supporting frame, while interlocking the angulated clip portions in the angulated slots of the top panel.

The foregoing and other important objects, advantages, and inherent functions of the invention will become apparent as the same is more fully understood from the following description, which, taken in connection with the accompanying drawings, discloses a preferred embodiment of the invention.

Referring to the drawings:

Fig. 1 is a perspective view showing X-ray apparatus comprising a table embodying the present invention;

Fig. 2 is a sectional view taken substantialy along the line 22 in Fig. 1; and

Fig. 3 is a sectional view taken substantially along the line 33 in Fig. 1.

To illustrate the invention the drawings show apparatus including a tiltably adjustable table structure particularly well suited for supporting human bodies in position for examination and therapy, by means of penetrating rays, such as X-rays, or for the making of ray pictures of the supported body. The structure is especially well suited for such purposes in that the table structure is tiltably supported for adjustment to any desired angular position about a central turning axis, so that a supported body may be disposed in horizontal position as well as in any position tilted from horizontal in either direction, the table structure being tiltable to dispose a body supported thereon in vertical, horizontal and intermediate positions.

To these ends, the apparatus comprises a table structure 31, including a top panel, turnably supported means 32 carrying the table structure, and frame means 33 mounted on the turnably supported means for movement thereon longitudinally of the table structure 31, such frame means 33 carrying a penetrating ray source, such as an X-ray generating tube, enclosed in a suitable casing structure 34 and disposed in position with respect to the table structure 31 to direct a penetrating ray beam 35 upwardly through the top panel of the table structure and a body 35 disposed thereon in position for examination or therapy, or to be pictured. The frame means 33 also provides for the support thereon of a frame structure 36 adapted to carry ray sensitive fluorescent screen means, or ray sensitive film material, or both, in position above the table structure 31, to allow for the fluoroscopic examination or the radiographic picturing of the supported 'body 35' when irradiated with the beam 35 from the ray source in the casing 34. It will be seen that the ray source and the frame means 36 may be moved simultaneously and in fixed relative position longitudinally of the table structure 31, thereby allowing for radiography or fluoroscopy of the subject body 35 in anyselected zone longitudinally of the table structure merely by moving the frame means 33 to an appropriately adjusted position longitudinally of the table structure.

The table structure 31 may conveniently comprise a rectangular frame 70 embodying a pair of spaced apart, longitudinally extending frame members 71 rigidly interconnected in spaced relationship by transverse bracing and spacing members 72 forming the opposite ends of the frame, the members '71 and 72 preferably comprising box-like members formed of sheet metal, such as steel, rigidly secured together at the meeting ends of the members, to form the corners of the frame. It will, of course, be apparent that the invention is not necessarily limited to the particular sectional shape of the frame members, nor the manner of interconnecting the same together, since the same may be fastened together in any suitable or convenient fashion, as by welding, to provide an exceedingly rigid yet relatively inexpensive, light weight frame structure, the preferred box-like character of the frame members affording a structure of unusual rigidity.

The'table frame 70 may carry a table top panel 73 secured to the frame in any suitable or preferred fashion, as on upward extensions of the frame end members 72, at the opposite ends of the top panel. The table top panel may comprise a rectangular, board-like element of preferably homogeneous character, and a preferably formed sheet metal frame 7 4 secured to and beneath the marginal edges of the panel for the purpose of strengthening and rigidifying the same. The frame 74 may comprise longitudinal and transverse end members 75 rigidly secured together, as by welding, at the corners of the frame, said members, as shown more especially in Fig. 3 of the drawings, being each formed from a bent metal strip, the medial portions of which form an elongated portion 76 of box-like sectional configuration, the opposite side edges of the strip being disposed in overlapping relationship and preferably integrated, as by welding, to form a flange 77 extending, at one corner of the portion 76, in the plane of a side wall 78 of said portion. The flanges 77 and side wall portions 78 of the frame members 75 form a peripheral seat for receiving and supporting the marginal edges of the panel 73; and any suitable means may be provided for securing the panel edges in mounted position on said peripheral seat.

As shown more particularly in Fig. 3 of the drawings, however, simplified and improved fastening means 79 may be provided at intervals on the frame members 75 for securing the panel member 73 on the frame 74. To this end, the members 75 may be formed at intervals with openings 80 through the flange 77 at the junction thereof with the portion 76. The under side of the panel 73 may be formed with inclined slits 81 opening upon the under side of the panel in registration with the openings 80, said slits extending upwardly and in a direction preferably outwardly in the panel member. Spring clips 82, preferably comprising metal strips, may be employed for securing the panel upon the members 75 at the openings 80. These spring clips may comprise metal strips each having a bent end 83 adaptedfor removable insertion in a slit 81, and a shank 84 adapted to extend outwardly of the lower surface of the panel through a said opening 80 in position overlyingthe wall 85 of the frame portion 76 which extends at right angles to the flange 77 at the opening 80. The shank 84 may be secured in any suitable or preferred fashion to the wall 85, as by means of a removable set screw 86.

It will be seen that resilient clips 82 applied at intervals along the marginal edges of the panel member 73 will resiliently yet securely hold the same to the frame 74. The clips 82 need not be applied upon the panel until the same is assembled and fastened upon the frame. Accordingly, panel members may be fabricated and stored without special care to preserve mounted clips against damage or deformation prior to assembly on the frame 74. The panel fastening arrangement is exceedingly simple and inexpensive, neat and unobtrusive, and affords strong, firm anchorage of the panel 73 on the frame 74.

It is thought that the invention and its numerous attendant advantages will be fully understood from the foregoing description, and it is obvious that numerous changes may be made in the form, construction and arrangement of the several parts without departing from the spirit or scope of the lnvention, or sacrificing any of its attendant advantages, the form herein disclosed being a preferred embodiment for the purpose of illustrating the invention.

The invention is hereby claimed as follows:

In table structure comprising a table top panel and means to secure the panel at its edges on said frame, the combination of resilient metal strips forming mounting clips, said panel being formed with inclined slots opening on the under side thereof inwardly of and along the marginal edges of the panel, said clips each having an inclined end adapted for engagement in a said slot and a shank adapted to extend beneath the panel adjacent said frame, and means to fasten said shank on said frame.

References Cited in the file of this patent UNITED STATES PATENTS 1,239,146 Wantz Sept. 4, 1917 1,333,349 Stirckler Mar. 9, 1920 1,573,571 Pohl Feb. 16, 1926 1,630,181 Isherwood May 24, 1927 1,870,959 Morrison Aug. 9, 1932 2,568,236 Kizaur Sept. 18, 1951 2,588,124 Kizaur Mar. 4, 1952 2,649,835 Lierley Aug. 25, 1953 2,680,046 Stava June 1, 1954 2,695,362 Gerneth Nov. 23, 1954 2,822,477 Kizaur Feb. 4, 1958 marginal frame, a

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