Shelf assembly

Details Shelf assembly Shelf assembly

2000-05-18

2001-08-21

Chin-Shue, Alvin (Department: 3634)

Supports: racks

Special article

Stacked articles

C211S074000, C312S405100, C108S108000

Reexamination Certificate

active

06276538

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to display racks for supporting and displaying a plurality of products. More particularly, this invention relates to a shelf assembly adapted to be used in a display rack for organizing and merchandising a plurality of products.
BACKGROUND OF THE INVENTION
Merchants commonly display their products in shelved structures. In order to provide product at the front of the shelves, the shelves are commonly sloped downwardly so that gravity forces the product to the forward edge of this shelves where it is easily accessible to consumers. The angle of the shelf determines the amount of force gravity will have on the product so that the product moves forward.
Such inclined shelves are commonly divided into a plurality of tracks or channels parallel to the side edges of the shelves with dividers so that the product is displayed in orderly columns extending from back to front of the shelf. The tracks or channels are defined by the bottom of the shelf and a plurality of dividers extending upwardly from the shelf bottom. The dividers may be integrally formed with the shelf or separately formed and movable along the shelf bottom. Additionally, the dividers may be integrally formed in a shelf insert, such as the one disclosed in U.S. Pat. No. 5,614,288 issued to the assignee of the present application. Arranging the products in columns enables the merchant to display different products in different columns without multiple products being located in the same track or column.
Plastic inserts such as the one disclosed in U.S. Pat. No. 5,614,288 may be placed on a planar shelf in order to provide the shelf with means to divide the product into different columns for display purposes. These plastic inserts are typically of unitary construction and are commonly made of extruded or molded plastic. Dividers are an integral part of the insert and divide the insert into a plurality of tracks, a pair of dividers and the bottom of the insert defining a track. A plurality of stops or bumpers found at the front of the shelf insert are fixed to pairs of dividers at the front of the dividers in order to prevent product from falling off the front edge of the shelf. Once the forwardmost bottle is removed from the track, the remaining bottles within the track slide forwardly until the frontmost bottle contacts the bumper stop.
U.S. Pat. No. 5,351,838 discloses a shelf insert having a front wall shaped so as to form a plurality of inverted arches defining a plurality of openings therebetween. The front wall acts as a bumper stop for holding and retaining products positioned within the tracks or channels formed by the dividers and bottom of the shelf insert. The front wall prevents product from falling off the front of the shelf. A stop member may be inserted into slots cut in the upper portions of the front wall in order to further prevent product from passing through the openings in the front wall of the insert.
U.S. Pat. No. 5,645,176 discloses a one-piece elongate channel of unitary construction formed in a single plastic molding operation. A plurality of such elongate channels may be connected to each other and secured to a shelf in order to create a plurality of tracks extending front to back on the shelf, each track being defined by a pair of upstanding sidewalls and a bottom member. At the front of the sidewalls, a front member spaced above the bottom of the track connects the sidewalls and acts as a bumper stop preventing the forwardmost product in a column of products from falling off the shell. This front member is sufficiently narrow in construction so as to define with the sidewalls and bottom of the track a generally rectangular aperture through which a substantial portion of the front or lead article in the channel may be viewed by a potential customer. Although this patent does disclose an aperture through which a consumer may view a portion of the forwardmost product in a track, the customer may not always see the label due to rotation of the products as they move down the track. In addition, the customer must lift the forwardmost product in the column over the bumper stop or pivot the forwardmost product over the top of the bumper stop while pushing all of the other products in the column rearwardly in order to remove the forwardmost product.
Gravity feed shelves may be used in refrigerated units such as coolers and non-refrigerated display racks. Typically, non-refrigerated display racks display larger bottles of product, such as two liter bottles, and are located along the sides of aisles in stores. Coolers or refrigerated units typically display smaller bottles of product, such as twenty-ounce bottles and are located near the checkout counter or register of a grocery or convenience store.
In both non-refrigerated and refrigerated display racks, a finite amount of vertical space is available for shelving. The more shelves can be placed within this finite area, the better from a merchant's standpoint because the merchant can display more product. In addition, the more shelves within the area, the less frequently the merchant needs to restock the display rack. Therefore, merchants desire display racks having the maximum possible number of shelves which are able to fit within a defined area.
Until the present invention, adjacent shelves generally were spaced vertically apart from one another by a distance equivalent to or greater than the height of the product being displayed plus the distance between the bottom of the shelf and the bumper stop, because when a consumer wanted to remove the forwardmost product located within a track on the shelf, he or she generally would lift the forwardmost product up over a bumper stop at the front of the track. Therefore, adjacent shelves generally were separated vertically from one another a sufficient distance so as to enable customers to remove the forwardmost products within the tracks by lifting the product vertically. The area between adjacent shelves required for customers to remove product is wasted space because it does not hold or store product. Thus, any type of shelf or shelf insert with immobile fixed bumper stops generally required a vertical spacing between shelves of at least the height of the product being displayed plus the height between the bottom of the shelf and the bumper stop at the front of each track. Such self spacing is undesirable because it decreases the packout or volume of product being displayed within a confined area.
Another difficulty with shelves or shelf inserts having fixed bumper stops is that as product slides down the shelf in the tracks, the product may twist about a vertical axis, inherently causing the labels on the bottles to turn. Therefore, once the forwardmost product contacts the bumper stop, the label of the forwardmost product is facing sideways or rearwards rather than forwardly. Consequently, the consumer has to twist the forwardmost product in a track in order to read its label in order to determine whether the product is the particular product the consumer wants.
In addition, product located on the upper shelves of a shelved structure such as, for example, a non-refrigerated display rack is difficult for some customers to remove because in order to remove the forwardmost product within a track, the product generally was lifted vertically over the fixed bumper stop located at the front of the track. Product located on the uppermost shelf of a display rack was difficult for a consumer whose reach is equal to or less than the height of the uppermost shelf of the display rack. Therefore, the height of a display rack in which merchants may display their products was limited to approximately the height of the reach of the consumers.
The present invention increases the height at which uppermost shelves of a display rack which contain product may be located because customers no longer must lift the product vertically above a fixed stop located at the front of the tracks of the shelf. The uppermost shelf of a display rack may be placed higher than heretofore poss

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