Product pusher

• US 6,769,552 B1
• Filed: 12/17/2001
• Issued: 08/03/2004
• Est. Priority Date: 12/17/2001
• Status: Expired due to Fees

• Current Assignee: Trion Industries Incorporated
• Original Assignee: Trion Industries Incorporated
• Inventors: Thalenfeld, David R.
• Primary Examiner(s): NOVOSAD, JENNIFER ELEANORE
• Application Number:
  US10/024,156
• Time in Patent Office: 960 Days
• Field of Search: 211/59.3, 211/59.2, 211/51, 211/183, 211/74, 211/175, 211/184, 211/189, 221/271, 221/279, 312/42, 312/45, 312/61, 312/71, 312/72
• US Class Current: 211/59.3
• CPC Class Codes: A47F 1/126 the pushing device being urged by spring means

Abstract

A product pusher device comprising an elongated guide track and a pusher sled slidably guided along the track for urging product packages forwardly on a display shelf. The pusher sled incorporates a housing for containing a coiled strip spring element. The end extremity of the spring is anchored at the forward end of the guide track, and t he coiled body spring is confined within the housing at the back of the sled. By constructing the sled housing with an open bottom, assembly is greatly facilitated by allowing the spring to be anchored on the guide track independently of the sled and thereafter allowing the sled to be lowered over the coiled body of the spring and pressed downward to be snapped into assembled position on the guide track.

Claims

1. A product pusher for product displays, which comprises,

(a) an elongated guide track formed with spaced-apart parallel, outwardly facing guide edges,

(b) a pusher sled positioned on said guide track for sliding movement thereon and having opposed channel-forming flanges slidably engaging said guide edges for guided movement of said sled forwardly and rearwardly along said guide track, said channel-forming flanges having upper portions and lower portions, and said lower portions having inwardly facing edges formed thereon and spaced apart a distance less than a distance between said outwardly facing guide edges,

(c) a coiled strip spring having one end extremity anchored at a front portion of said guide track and having a coiled body portion disposed rearwardly of said end extremity,

(d) said pusher sled including a pusher element and a spring housing positioned behind said pusher element,

(e) said spring housing comprising a pair of spaced apart side elements for lateral confinement of said body portion and a front element for the forward confinement of said body portion,

(f) said spring housing having an open bottom through which said coiled body portion can enter said housing during assembly of said pusher sled with said guide track, and

(g) the lower portions of the channel-forming flanges of said pusher sled and the guide edges of said guide track being configured such that at least one of said inwardly or outwardly facing edges is formed with inclined edge surfaces positioned to engage oppositely facing edge surfaces of the other of said inwardly or outwardly facing edges during assembly movement of said pusher sled perpendicular to said guide track, whereby the lower portions of said channel-forming flanges and the inwardly facing edges formed thereon are temporarily displaced laterally outward by said outwardly facing edges to accommodate a snap-in assembly of said pusher sled onto said guide track into a locked together relation therewith.

2. A product pusher according to claim 1, wherein

(a) the side elements of said spring housing comprise side walls,

(b) the front element of said spring housing comprises a portion of said pusher element.

3. A product pusher according to claim 2, wherein

(a) said pusher element comprises a generally vertically disposed panel, and

(b) the front element of said spring housing comprises a portion of said panel.

4. A product pusher according to claim 3, wherein

(a) said panel is provided with a downwardly open notch along a lower edge portion thereof for the forward passage of elements of said spring during forward and rearward movements of said sled relative to said guide track,

(b) said notch having a width greater than said spring.

5. A product pusher according to claim 3, wherein

(a) said upper portions of said channel-forming flanges extend laterally outward from said spaced-apart side elements in cantilever fashion.

6. A product pusher according to claim 1, wherein

(a) said guide track is formed with an anchor slot in a front portion thereof,

(b) the end extremity of said spring is formed with an offset portion, and

(c) said spring is adapted for installation of said offset portion in said anchor slot prior to assembly of said pusher sled with said guide track, and

(d) said pusher sled is adapted for assembly with said guide track after installation of said offset portion in said anchor slot.

7. A product pusher according to claim 1, wherein

(a) said guide track is formed with a permanent abutment stop at a rearward end portion thereof to prevent separation of said pusher sled from said guide track by rearward longitudinal movement of said pusher sled and to prevent assembly of said pusher sled onto said guide track from said rearward end thereof.

8. A product pusher according to claim 1, wherein

(a) said guide track is formed with a transverse notch in an upper surface portion thereof adjacent a rearward end portion of said track,

(b) said transverse notch forming a rearwardly facing stop wall,

(c) said stop wall being engageable with forwardly facing surfaces of said pusher sled to temporarily lock said sled in a retracted position.

9. A product pusher according to claim 1, wherein

(a) said guide track is formed with a permanent abutment stop at a forward end portion thereof to prevent separation of said pusher sled from said guide track by forward longitudinal movement of said pusher sled and to prevent assembly of said pusher sled onto said guide track from said forward end thereof.