US3601346A

US3601346A - Display fixture frame

Info

Publication number: US3601346A
Application number: US824998A
Authority: US
Inventors: Jay G Fenwick; Earl Christensen; Carl A Wettlaufer
Original assignee: Streater Industries Inc
Current assignee: Security Pacific Business Credit Inc
Priority date: 1969-05-15
Filing date: 1969-05-15
Publication date: 1971-08-24
Anticipated expiration: 1988-08-24
Also published as: DE2022100A1; DE2022100B2; FR2047840A5; GB1291348A; CA932702A

Abstract

The invention relates to a frame for a display fixture or the like. Frames of this type have vertical posts or standards and extending laterally from each standard and connected thereto with hooks are a pair of structural members known as base arms. The hooks are subjected to relatively heavy compressive and tensile forces due to loads applied to the base arms. The base arms are dished on their inboard ends to effectively redirect the forces applied to the hooks to minimize or reduce the effect of the loading on the hooks.

Description

h United States atent 1111 3,601

[72] Inventors Jay C. Fenwidt; [56] References Cited Earl Christensen; Carl A. Wettlaufer, all of UNITED STATES PATENTS [2]] App] No 33%; 2,919,034 12/1959 Levy... .2 108/108 Ma 15 1969 2,956,688 10/1960 Galass1 108/108 [221 Y 3,194,408 7/1965 Klmpton... 211/183 [45] Patented Aug. 24, 1971 3 244127 4/1966 Ev l0 ans 8/108 [73] Assgnee Mums 3 263 821 8/1966 Klene etal 211/148 beam,

3,186,668 6/1965 Story 248/158 Primary Examiner-Edward C. Allen Attorney-Wayne B. Easton ABSTRACT: The invention relates to a frame for a display fix- [54] ggzp g ture or the like. Frames of this type have vertical posts or stan- "wing dards and extending laterally from each standard and con- [52] U.S.Cl 248M883, nected thereto with hooks are a pair of structural members 21 1/l77,21 1 183 known as base arms. The hooks are subjected to relatively [51] Int. Cl ..Fl6m 11/20 heavy compressive and tensile forces due to loads applied to [50] Field of Search 248/188.8, the base arms. The base arms are dished on their inboard ends 188.1,250, 158; l08/108;2l H148, 176, 177, 182,

to effectively redirect the forces applied to the hooks to minimize or reduce the effect of the loading on the hooks.

Display fixtures of the type found in department stores must, in addition to their aesthetic appearance, be sufficiently strong, rigid and rugged to hold merchandise displayed thereon and to withstand a certain amount of abnormal abuse at various times that any article used in serving the public is subjected to. Although absolute strength required for a display fixture is admittedly relatively small it is of course highly desirable to achieve the required strength as economically as possible.

The present invention is directed to the improvement of the base arms of display fixtures and it has been found that a simple change effected with a forming operation produced greatly improved results in the form of an increased moment of inertia which resulted in a substantial reduction in size of the base arm. 4

A main object of the invention is to provide a new and improved frame for a display fixture and particularly to an improvement in the base arms thereof which results in a lighter, stronger and more rigid structure which effects a substantial economy in the manufacture thereof.

Other objects and advantages of the invention will become apparent from the following specification, drawings and appended claims.

In the drawing:

FIG. 1 is a fragmentary perspective view of a frame for a display fixture having base arm assemblies embodying the invention;

FIG. 2 is a fragmentary elevational view showing a base arm assembly embodying the invention attached to a slotted vertical standard with a portion of the standard broken away to show the hooks of the base arm inserted in the slots of the standard; and

' FIG. 3 is a plan view of the assembly shown in Fig. 2 except that the vertical standard has been omitted in this view; and

FIGS. 4 and 5 are sectional views taken on lines 4-4 and 5-5, respectively, of Figs. 1 and 2.

Referring to Fig. 1, the fragmentary perspective view shows a partial frame assembly for a display fixture or the like which includes two vertically extending, slotted standards and 11. Standards.10 and 11 are of tubular construction and have generally rectangularly shaped cross sections.

Standard 10 is an end-type standard having on each opposite side thereof one vertically extending column of vertically spaced apart slots 12. Standard 11 is an intermediatetype standard having on each opposite side thereof two horizontally spaced apart columns of vertically spaced apart

slots

13 and 14. Additional intermediate-type standards 11 could be added to increase the length of the display fixture frame and an end-type standard 10 would be added at the opposite or far end of the fixture frame such that there would be any desired number of intermediate-type standards 11 disposed between two end-type standards 10.

With reference to Figs. 4 and 5, the single column of slots 12 on each opposite side of standard 10 has the same relative position thereto as the column of slots 14 on each opposite side of standard 11. Each of the standards 10 and 11 has a screw-type leveling base 17 for leveling purposes.

On opposite sides of end standard 10, extending laterally therefrom,are

base arms

20 and 21. The

base arms

20 and 21 have or may have exactly the same construction except that one is the reverse or mirror image of the other. A description of one base arm will thus also serve as a description of the other.

With particular reference to Figs. 3 and 4, the base arm 20 has an overall generally rectangular shape and may be formed by molding, as with a plastic, or by using sheet metal material and performing cutting, bending and stamping operations on the sheet metal used. These forming operations will not be described as it is only the ultimate form of the base arm that is of interest relative to the invention. I

A major portion of the base arm 20 comprises a sheet material wall portion 22 which occupies a generally vertical plane. Extending from one end of the base am: and attached to the wall portion 22 are a plurality of hooks 26 to 30. Each of the hooks has a flange portion 31 and a downwardly extending portion 32, their hook portions being in the same plane as wall portion 22.

Horizontally extending upper and lower

right angle flanges

35 and 36 extend laterally from the upper and lower sides respectively of wall portion 22. A vertically extending right angle flange 37 extends laterally from the end of the wall portion 22 opposite the hook end thereof. The flanges 35 to 37 all extend in the same lateral direction relative to the wall portion 22 and function in a normal manner to provide overall strength and rigidity for the base arm. The flange 36 has a screw-type leveling base 38 attached at'the outboard end thereof for leveling purposes.

Wall portion 22 has a dished portion adjacent the hooks 26 to 30 which forms a depression 40 on the flange side of wall portion 22 and a bulge 41 on the opposite side of the wall portion. The dished portion has a generally rectangular shape and is in closely spaced relation to the

flanges

35 and 36 and is as close as practicable to the hooks 26 to 30. The bulge 41 is generally wedge-shaped with the portion thereof furthest removed from the plane of wall portion 22 being closest to the hooks and being defined by a vertically extending edge 44. The opposite end of the bulge 40 blends smoothly into the plane of wall portion 22.

Fig. 3 shows most clearly how a pair of

base arms

20 and 21 are attached together with their respective bulges 41 in abutting engagement. The respective hooks of the

base arms

20 and 21 are spaced apart the same distance as the columns of

slots

13 and 14 of standard 11 and the ends of the base arms opposite the hooks are in abutting engagement. Holes 46 are provided in the

base arms

20 and 21 to facilitate the use of nuts and bolts or the like (not shown) for attaching the base arms together. For convenience, the assembly resulting from the joining together of two

base arms

20 and 21 as best illustrated in Fig. 3 will be referred to as a base arm set 2021.

With reference to the general arrangement of parts of the frame assembly shown in Fig. 1,

single base members

20 and 21 extend laterally from the opposite sides of standard 10 and have their respective hooks inserted in the slots 12 on opposite sides of the standard 10. Laterally extending from opposite sides of standard 11 are base arm sets 20--2l with the respective hooks of the base arms being disposed in the

slots

13 and 14 on opposite sides of the standard 11. The broken construction lines depicted in Fig. 1 indicate or suggest the presence of other structural members which would be necessary to complete an actual frame assembly but such structural members are not illustrated because they have no bearing on the invention.

Reference is now made to the function and purpose of the bulge 41 formed in the

base arms

20 and 21. With reference to Fig. 2, a load indicated by the arrow 47 would tend to cause the base arm 20 to rotate in a counterclockwise direction about the leveler 38. The reaction force to the load which would tend to rotate the base arm in the opposite direction would be applied upwardly from the bottoms of the slots 12 to 14 of the standards 10 and 11 to the hook flange portions 31. The effect of this loading without the bulge construction 4] would be to produce relatively high compression forces on the flange portions of

hooks

26 and 27 and relatively high tensile forces on the flange portions of

hooks

29 and 30. The bulge construction 41 reduces these forces by substantial amounts by increasing the moment of inertia of the base arm. In practice it has been found that the bulge construction permitted the height of the base arm to be reduced from 9 inches to 6 inches without reducing the load carrying capacity of the base arm.

The bulge construction has a further use and function when two base arms are joined to form a base arm set as is best shown in Fig.3. In this construction the bulges 41 on

adjacent base arms

20 and 21 are in abutting engagement and loads applied to the base arm set cause the bulges 41 to react against each other and thereby causes an increase in the effective overall moment of inertia of the base arm set to a value greater than twice the moment of inertia ofa

single base arm

20 or 21.

Another advantage of the base arm set construction shown in Fig. 3 is that the two sets of hooks may be spaced apart a distance equal to the spacing between the two columns of

slots

13 and 14 in the standard 11. The hooks and flanges thereof thus remain in the plane of the base arm wall portions 22 and the hook flange portions 31 thus functioning as struts in resisting the compression and tensile loading forces referred to above. The alternative to this construction would be to form two right-angle bends in the hook flange portions 31 to facilitate the above referred to lateral spacing between the respective sets of hooks on the

base arms

20 and 21 corresponding to the spacing between the

standard slots

13 and 14. With that construction each hook flange portion 31 would have a built-in lever arm which would permit distortion of the form thereof with much lower compression and tensile loading forces.

We claim:

1. A base arm assembly for the frame of a display fixture or the like comprising a first base arm for said frame-having a generally rectangularly shaped sheet material wall portion in a vertical plane, a plurality of vertically arranged and spaced hooks in said plane extending from one side of said wall portion, each of said hooks having a neck portion and a downwardly extending portion attached to said neck portion, horizontally extending upper and lower right-angle flanges ex tending from the upper and lower sides of said wall portion,

said wall portion having a dished portion adjacent said hooks forming a depression on the flange side of said wall portion and a bulge on the opposite side of said wall portion, said dished portion being generally rectangularly shaped and in spaced relation to said horizontally extending flanges, said dished portion having a vertically extending edge adjacent said hooks and in spaced relation to said horizontally extending flanges, said vertically extending edge of said dished portion being of a height so that it extends at least from the level of one of said hook neck portion to the level of another of said hook neck portions, a second base arm which is the mirror image of said first base arm, vertically extending standard means having two spaced apart columns of slots, said base arms being attached together with their bulges in abutting relation and the respective hooks thereof being spaced apart the same distance as said columns of slots, and the ends of said base arms opposite said hooks being in abutting engagement.

2. A base arm for the frame of a display fixture or the like comprising a generally rectangularly shaped sheet material wall portion in a vertical plane, a plurality of vertically arranged and spaced hooks in said plane extending from one side of said wall portion, each of said hooks having a neck portion and a downwardly extending portion attached to said neck portion, horizontally extending upper and lower rightangle flanges extending from the upper and lower sides of said wall portion, said wall portion having a dished portion adjacent said hooks forming a depression on the flange side of said wall portion and a bulge on the opposite side of said wall portion, said dished portion being generally rectangularly shaped and in spaced relation to said horizontally extending flanges, said dished portion having a vertically extending edge adjacent said hooks and in spaced relation to said horizontally extending flanges, said vertically extending edge of said dished portion being of a height so that it extends at least from the level of one of said hook neck portions to the level of another of said hook neck portions, said vertically extending edge of said dished portion being of a height so that it extends from the level of the lowermost one of said hook neck portions to the level of the uppermost one of said hook neck portions.

Claims

1. A base arm assembly for the frame of a display fixture or the like comprising a first base arm for said frame having a generally rectangularly shaped sheet material wall portion in a vertical plane, a plurality of vertically arranged and spaced hooks in said plane extending from one side of said wall portion, each of said hooks having a neck portion and a downwardly extending portion attached to said neck portion, horizontally extending upper and lower right-angle flanges extending from the upper and lower sides of said wall portion, said wall portion having a dished portion adjacent said hooks forming a depression on the flange side of said wall portion and a bulge on the opposite side of said wall portion, said dished portion being generally rectangularly shaped and in spaced relation to said horizontally extending flanges, said dished portion having a vertically extending edge adjacent said hooks and in spaced relation to said horizontally extending flanges, said vertically extending edge of said dished portion being of a height so that it extends at least from the level of one of said hook neck portion to the level of another of said hook neck portions, a second base arm which is the mirror image of said first base arm, vertically extending standard means having two spaced aparT columns of slots, said base arms being attached together with their bulges in abutting relation and the respective hooks thereof being spaced apart the same distance as said columns of slots, and the ends of said base arms opposite said hooks being in abutting engagement.

2. A base arm for the frame of a display fixture or the like comprising a generally rectangularly shaped sheet material wall portion in a vertical plane, a plurality of vertically arranged and spaced hooks in said plane extending from one side of said wall portion, each of said hooks having a neck portion and a downwardly extending portion attached to said neck portion, horizontally extending upper and lower right-angle flanges extending from the upper and lower sides of said wall portion, said wall portion having a dished portion adjacent said hooks forming a depression on the flange side of said wall portion and a bulge on the opposite side of said wall portion, said dished portion being generally rectangularly shaped and in spaced relation to said horizontally extending flanges, said dished portion having a vertically extending edge adjacent said hooks and in spaced relation to said horizontally extending flanges, said vertically extending edge of said dished portion being of a height so that it extends at least from the level of one of said hook neck portions to the level of another of said hook neck portions, said vertically extending edge of said dished portion being of a height so that it extends from the level of the lowermost one of said hook neck portions to the level of the uppermost one of said hook neck portions.