Slip-in strut module for food service cabinet

• US 5,810,460 A
• Filed: 05/22/1997
• Issued: 09/22/1998
• Est. Priority Date: 05/22/1997
• Status: Expired due to Term

• Current Assignee: Alto-Shaam Incorporated
• Original Assignee: Alto-Shaam Incorporated
• Inventors: Hansen, William J.
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): WILKENS, JANET MARIE
• Application Number:
  US08/861,552
• Time in Patent Office: 488 Days
• Field of Search: 49/463, 16/306, 16/277, 312/138.1, 312/139, 312/327, 312/328, 312/116, 312/319.2
• US Class Current: 312/139
• CPC Class Codes: A47F 2003/008 with pivoting front glass panel
• CPC Class Codes: A47F 3/007 Cases or cabinets of the counter type
• CPC Class Codes: E05Y 2201/416 for counterbalancing
• CPC Class Codes: E05Y 2900/204 for display counters, e.g. for refrigerated counters

Abstract

A display case having a tubular framework with a display window pivotally mounted thereto has a lifting and supporting mechanism for the display window including a strut member having a rod end and a cylinder end. A hinge is pivotally mounted to the cylinder and is adapted to be secured to the display window. A strut body slidably receives a strut member and hinge thereon. A retention arrangement pivotally connects the rod end of the strut and the hinge to the strut body so as to define a strut module which is slidable into and out of the tubular framework of the display case.

Claims

1. In a display case including a framework having tubular sections and a display window pivotally mounted thereto by means of a hinge and fluid cylinder assembly, the improvement wherein the hinge and fluid cylinder assembly is housed in a module slidable into and out of one of the tubular sections of the framework of the display case and retained in the one tubular section without fasteners.

2. The improvement of claim 1, wherein the module is retained in the one tubular section by a retainer tab structure formed on a top end of the module.

3. The improvement of claim 1, wherein the module is screwless.

4. The improvement of claim 1, wherein the module is accessible at a top end of the one tubular section.

5. The improvement of claim 1, wherein the hinge is movable into and out of the module.

6. In a display case including a framework having tubular sections and a display window pivotally mounted thereto, a lifting and supporting mechanism for the display window comprising:

a strut member having a rod end and a cylinder end;

a hinge pivotally mounted to the cylinder end and adapted to be secured to the display window;

a strut body slidably receiving the strut member and hinge therein, the strut body having tab structure projecting therefrom; and

a retention arrangement pivotally connecting the rod end of the strut member and the hinge to the strut body so as to define a strut module which is slidable into and out of one of the tubular sections of the framework of the display case and retained in the framework by engagement of the tab structure with the one tubular section.

7. The lifting and supporting mechanism of claim 6, wherein the strut module is suspended from the one tubular section.

8. The lifting and supporting mechanism of claim 6, wherein the retention arrangement maintains the rod end and the cylinder end of the strut member inside the strut body.

9. The lifting and supporting mechanism of claim 6, wherein the retention arrangement includes a lower pivot point connecting the rod end of the strut member with the strut body, a first upper pivot point connecting the hinge with the cylinder end of the strut member, and a second upper pivot point connecting the hinge with the strut body.

10. A slip-in module for lifting and supporting a glass door of a display case having a framework of tubular sections accessible from an upper end thereof, the module comprising:

a fluid cylinder having a rod end and a cylinder end;

a hinge having a first portion adapted to be connected to the glass door, and a second portion pivotally coupled to the cylinder end of the fluid cylinder;

a rigid blank material formed with a pair of spaced tabs, a first set of spaced openings and a second set of spaced openings and having a length at least as long as the extended length of the fluid cylinder, the blank being bent about a pair of lines extending parallel to the longitudinal axis of the blank between the pair of tabs, the first set of openings and the second set of openings to form a fluid cylinder body adapted to receive the fluid cylinder and hinge connected thereto, and having the pair of tabs, the first set of openings and the second set of openings in alignment, respectively;

a first pin passing through the first set of openings and the hinge to define a pivot point for the hinge;

a second pin passing through the second set of openings and the rod end of the fluid cylinder to define a pivot point for the fluid cylinder;

the fluid cylinder body being slipable into and out of one of the tubular sections of the framework of the display case and retainable in the one tubular section by engagement of the tabs on an end of the tubular section.

11. The slip-in module of claim 10, wherein the first portion of the hinge is dimensionally sized so as to be supported on a set of walls forming the tubular framework.

12. The slip-in module of claim 10, wherein the fluid cylinder is a nitrogen charged gas cylinder.

13. A method for installing a mechanism for lifting and supporting a display window pivotally mounted to a framework of a display case having tubular sections, the method comprising the steps of:

a) providing a fluid cylinder having a rod end and a cylinder end;

b) pivotally connecting the cylinder end of the fluid cylinder to a hinge to define a fluid cylinder and hinge assembly;

c) providing a strut body for receiving the fluid cylinder and the hinge assembly, the strut body having screwless retention structure formed thereon;

d) slidably positioning the fluid cylinder and hinge assembly in the strut body;

e) pivotally connecting the rod end of the fluid cylinder to the strut body;

f) pivotally connecting the hinge to the strut body to define a strut module;

g) sliding the strut module into one of the tubular sections of the framework of the display case;

h) retaining the strut module in the one tubular section by means of the screwless retention structure; and

i) connecting the display window to the hinge.

14. In a display case including a tubular framework having a display window pivotally mounted thereto by means of a hinge and fluid cylinder assembly, the improvement wherein the hinge and fluid cylinder assembly is housed in a module slidable into and out of the tubular framework of the display case,

wherein the module is retained in the tubular framework by a retainer tab structure formed on a top end of the module.

15. The improvement of claim 14, wherein the module is screwless.

16. In a display case including a tubular framework having a display window pivotally mounted thereto, a lifting and supporting mechanism for the display window comprising:

a strut member having a rod end and a cylinder end;

a hinge pivotally mounted to the cylinder end and adapted to be secured to the display window;

a strut body slidably receiving the strut member and hinge therein; and

a retention arrangement pivotally connecting the rod end of the strut member and the hinge to the strut body so as to define a strut module which is slidable into and out of the tubular framework of the display case, wherein the retention arrangement maintains the rod end and the cylinder end of the strut member inside the strut body.