Bakery oven and an oven cart received therein

• US 4,375,354 A
• Filed: 05/27/1981
• Issued: 03/01/1983
• Est. Priority Date: 05/30/1980
• Status: Expired due to Fees

• Current Assignee: Elektro-Dahlen AB
• Original Assignee: Elektro-Dahlen AB
• Inventors: Henriksson, Roy
• Primary Examiner(s): Camby, John J.
• Application Number:
  US06/267,702
• Time in Patent Office: 643 Days
• Field of Search: 432/137, 432/138, 432/239, 432/241, 99/443 R, 99/479
• US Class Current: 432/239
• CPC Class Codes: A21B 1/44 with surfaces rotating in a horizontal plane
• CPC Class Codes: A21B 1/50 characterised by having removable baking surfaces

Abstract

A bakery oven for food preparation and an oven cart which can be placed therein comprising a goods stand (1) a wheel provided cart underframe (2), an oven chamber (5) in which the goods stand (1) is intended to be received, and a second chamber (15) arranged under the floor (14) of the oven chamber, the cart undersection (2) being pushed into said second chamber when the oven cart is rolled into the oven. The goods stand is rotatable relative to the cart underframe and the oven cart is provided with a coupling member (7), which cooperates with a rotatable driving device (8) in the oven. The goods stand is supported on the cart underframe by a vertical axle (13) rotatably mounted therein and an attachment (12) arranged at the end of the axle. A slot (16) which is open towards the oven door is arranged in the floor (14) of the oven chamber for receiving the axle (13). During the rotation of the goods stand in the oven chamber ( 5) the cart underframe is stationary in the cart chamber (15) and is thereby not exposed to the strong heat in the oven chamber.

Claims

1. An installation for preparing food of the type wherein a bakery oven has an oven chamber for receiving through a door in the oven an oven cart comprised of a goods stand rotatably mounted about a vertical axis on a wheeled cart underframe, a lower chamber under the oven chamber for receiving the wheeled cart underframe, a drive means and a drive coupling member rotatably driven by said drive means mounted on the oven, and a driven coupling member mounted on said goods stand for engagement with the drive coupling member, comprising a substantially vertical axle shaft rotatably connecting said goods stand to said cart underframe in spaced relation, a floor in said oven separating said oven chamber from said lower chamber, a slot in said floor open at the oven door end for receiving said axle shaft when said oven cart is moved into and out of the oven, a releasable locking mechanism mounted on said oven cart for locking said goods stand against rotation with respect to said cart underframe when said oven cart is outside the oven, and release means mounted on the oven for cooperatively engaging and releasing said locking mechanism when said oven cart is placed in position within the oven so that said goods stand can be rotated within the oven.

2. An installation according to claim 1 and further comprising guides mounted in the lower chamber for guiding the cart underframe to a connection position between said coupling members.

3. An installation according to claim 2 wherein said release means comprises a release member on said locking mechanism, a guiding surface on each guide arranged to cooperate with said release member, said guiding surface being provided with a positioning recess with which said release member engages when said goods stand is positioned in said connection position between said coupling members.

4. An installation as claimed in claim 3 wherein said locking mechanism comprises a stop plate displaceably mounted on said axle shaft, pins protruding from said axle shaft, grooves in said stop plate adapted to engage with said pins when in the locking position, said release member comprises at least one member extending from said stop plate non-rotatably into a position where it is engageable with said guiding surface, and a spring member urging said stop plate into a position where said grooves are engageable with said pins.

5. An installation as claimed in claim 2 wherein said locking mechanism comprises a recess in said axle shaft, a detent member mounted on said cart underframe for releasably engaging in said recess to prevent rotation of said axle shaft, a link member pivotably mounted on said cart underframe and connected at one end to said detent member, an elongated release member slidably mounted on said cart underframe connected at its inner end to the other end of said link member, spring means adapted to urge said release member into a position in which said detent member is engageable in said recess, and said release means comprises a member positioned to engage the outer end of said release member to displace it against the action of said spring means to disengage said detent member from said recess.

6. An installation as claimed in claim 1 wherein said drive means comprises a drive motor and a gear mechanism operably connected thereto.

7. An installation according to claim 6 wherein said drive motor, gear mechanism, drive coupling and driven coupling members are arranged in said lower chamber for the rotation of the goods stand.