Title:
LOCKING DEVICE OF AN OVEN GRILL
Kind Code:
A1


Abstract:
The present invention relates to a locking device of an oven grill. When the oven grill is being inserted into the notch of an oven, the inverted V-shaped latch on the locking sheet leans against a bending portion of the V-shaped notch of the oven due to the pulling force exerted by the spring mechanism so as to prevent the oven grill from sliding outwards to lock the oven grill. When the oven grill is to be taken out, put one hand at the front end of the oven and use fingers to lift up the S-shaped tie bar. Then, the rear end of the S-shaped tie bar moves down so as to press down the arc press plate as well as the inverted V-shaped latch such that the locking sheet gets rid of the V-shaped notch under the pulling force exerted by the spring mechanism and, in turn, the locking at two sides are removed simultaneously, thus the oven grill can be taken out evenly and smoothly using one hand.



Inventors:
Chen, Guozhen (Huizhou, CN)
Application Number:
12/491233
Publication Date:
01/28/2010
Filing Date:
06/25/2009
Primary Class:
International Classes:
F24C15/16
View Patent Images:
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Foreign References:
JPH04327811A1992-11-17
DE4307911A11994-09-15
Primary Examiner:
PEYTON, DESMOND C
Attorney, Agent or Firm:
BYIP, LTD. (Hong Kong, HK)
Claims:
What is claimed is:

1. A locking device of an oven grill, comprising: a top rack (1), a bottom rack (2), and a pair of slide rails (3), the top rack (1) being provided on the pair of slide rails (3), and the bottom rack (2) being positioned under the slide rails (3), wherein the slide rails (3) have locking sheets (4) provided on two sides thereof, the locking sheet (4) is hinged to a side of the slide rail (3) at one end thereof, has a spring mechanism (5) drawn upward to connect to the slide rails (3) formed at a center portion thereof, and at the other end has a tip-tilted inverted V-shaped latch (41) formed at the outer side and an arc press plate (42) at the inner side, the top surfaces of the two press plates (42) lean against two ends of an S-shaped tie bar (6), respectively, and the S-shaped tie bar (6) is hinged to side surfaces of the two slide rails (3) and winded from the front end of the oven under the top rack 1.

2. The locking device of an oven grill as claimed in claim 1, wherein the spring mechanism (5) is a tension spring.

3. The locking device of an oven grill as claimed in claim 1, wherein the slide rail (3) has a stopper post (31) provided parallel to and behind a hinge position at which the S-shaped tie bar (6) hinges to the slide rail (3).

4. The locking device of an oven grill as claimed in claim 1, wherein the S-shaped tie bar (6) is welded with a piece portion (7) having a round hole at the hinge position, through which a screw runs to hinge the S-shaped tie bar (6) to the side of the slide rail (3).

Description:

FIELD OF THE INVENTION

The present invention relates to the technical field of oven articles and, more particularly, to a locking device of an oven grill.

BACKGROUND OF THE INVENTION

The oven is a cooker used for roasting food, and it is widely applied in people's family life and commercial use. The oven grill is a shelf mounted in the oven and adapted for placing food being roasted. Generally, there are parallel notches provided on the inner walls of the oven, which are for inserting the oven grill, and with the front end of the notches provided a V-shaped notch and both two sides of the oven grill arranged lockpins, the lockpins latch in the V-shaped notches in purpose of fixing the oven grill. There arrange two unlocking members on the two corresponding sides of the front ends of the oven grill, in the case of taking the oven grill out, it needs to unlock the unlocking members of two sides via two hands, then take out the oven grill. In such case, unlocking the unlocking members and then pulling out the oven grill using two hands, will bring about hard frictional between the oven grill and the notches due to uneven force regarding to two hands, and case abrasion mark and abrasion destroy of the oven grill, moreover, the uneven force of two hands will induce the oven grill losing balance then tilt to one side thereof and, in turns, incur the danger of food sprinkling from the oven grill.

SUMMARY OF THE INVENTION

Accordingly, one object of the present invention is to provide a locking device which is capable of controlling the balance of the oven grill using one hand and, in turn, overcome the shortage of the prior locking device of the oven grill.

To achieve the above-mentioned object, the present invention provides a locking device comprising a top rack, a bottom rack, and a pair of slide rails. The top rack is provided on the pair of slide rails, and the bottom rack is positioned under the slide rails. The slide rails have locking sheets provided on two sides thereof. The locking sheet is hinged to a side of the slide rail at one end thereof, has a spring mechanism drawn upward to connect to the slide rails formed at a center portion thereof, and at the other end has a tip-tilted inverted V-shaped latch formed at the outer side and an arc press plate at the inner side. The top surfaces of the two press plates lean against two ends of an S-shaped tie bar, respectively. The S-shaped tie bar is hinged to side surfaces of the two slide rails and winded from the front end of the oven under the top rack.

Preferably, the spring mechanism is a tension spring.

Preferably, the slide rail has a stopper post provided parallel to and behind a hinge position at which the S-shaped tie bar hinges to the slide rail.

The S-shaped tie bar is welded with a piece portion having a round hole at the hinge position, through which a screw runs to hinge the S-shaped tie bar to the side of the slide rail.

Since the locking sheet 4 of the oven grill of the present invention has the spring mechanism 5 drawn upward to connect to the slide rails 3 formed at the center portion thereof, and has the tip-tilted inverted V-shaped latch 41 formed at the outer side at one end thereof, when the oven grill is being inserted into the notch of an oven, the inverted V-shaped latch 41 on the locking sheet 4 leans against a bending portion of the V-shaped notch of the notch of the oven due to the pulling force exerted by the spring mechanism 5 so as to prevent the oven grill from sliding outwards and, in turn, achieve the object to lock the oven grill. When the oven grill is to be taken out, put one hand at the front end of the oven and use fingers to lift up the S-shaped tie bar 6 winded under the front end of the top rack 1, and then, the rear end of the S move down so as to bring the arc press plate 42 in motion. The press plate 42 is pressed down as well as the inverted V-shaped latch 41 at outer side such that the locking sheet 4 shakes off the yoke of the V-shaped notch under the pulling force exerted by the spring mechanism 5 and, in turn, the locking at two sides are removed at the same time, thus the oven grill can be taken out evenly and smoothly using one hand. The locking device of the present invention has simple structures, and can avoid case abrasion mark and abrasion destroy of the oven grill due to uneven force exerted by two hands when pulling out the oven grill. Moreover, it also can avoid the situation that the oven grill loses balance and tilts to one side thereof due to the uneven force of two hands, in turns, prevent food sprinkling from the oven grill.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view illustrating a structure of a locking device of an oven grill according to an embodiment of the present invention; and

FIG. 2 is a schematic view showing a tip-tilted S-shaped tie bar of the present invention.

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

Now, referring to FIGS. 1-2, the present invention will be expatiated.

A locking device of an oven grill includes a top rack 1, a bottom rack 2, and a pair of slide rails 3. The top rack 1 is provided on the pair of slide rails 3, and the bottom rack 2 is positioned under the slide rails 3. The slide rails 3 have locking sheets 4 provided on two sides thereof The locking sheet 4 is hinged to a side of the slide rail 3 at one end thereof, has a spring mechanism 5 drawn upward to connect to the slide rails 3 formed at a center portion thereof, and at the other end has a tip-tilted inverted V-shaped latch 41 formed at the outer side and an arc press plate 42 at the inner side. The top surfaces of the two press plates 42 lean against two ends of an S-shaped tie bar 6, respectively. The S-shaped tie bar 6 is hinged to side surfaces of the two slide rails 3 and winded from the front end of the oven under the top rack 1.

As a preferred embodiment of the invention, the spring mechanism 5 of this embodiment utilizes a tension spring, which has good flexibility, high temperature resistance, and uneasy elastic failure.

The slide rail 3 has a stopper post 31 provided parallel to and behind a hinge position at which the S-shaped tie bar 6 hinges to the slide rail 3, for limiting the rear end of the S-shaped tie bar 6 at the right location.

The S-shaped tie bar 6 is welded with a piece portion 7 having a round hole at the hinge position, through which a screw runs to hinge the S-shaped tie bar 6 to the side of the slide rail 3. The S-shaped tie bar 6 is a steel wire structured. Utilizing the piece portion 7 with a round hole as the hinging position and using a screw to fix the hinging position make the operation more convenient and the action more agility.

Since the locking sheet 4 of the oven grill of the present invention has the spring mechanism 5 drawn upward to connect to the slide rails 3 formed at the center portion thereof, and has the tip-tilted inverted V-shaped latch 41 formed at the outer side at one end thereof, when the oven grill is being inserted into the notch of an oven, the inverted V-shaped latch 41 on the locking sheet 4 leans against a bending portion of the V-shaped notch of the notch of the oven due to the pulling force exerted by the spring mechanism 5 so as to prevent the oven grill from sliding outwards and, in turn, achieve the object to lock the oven grill. When the oven grill is to be taken out, put one hand at the front end of the oven and use fingers to lift up the S-shaped tie bar 6 winded under the front end of the top rack 1, and then, the rear end of the S move down so as to bring the arc press plate 42 in motion. The press plate 42 is pressed down as well as the inverted V-shaped latch 41 at outer side such that the locking sheet 4 shakes off the yoke of the V-shaped notch under the pulling force exerted by the spring mechanism 5 and, in turn, the locking at two sides are removed at the same time, thus the oven grill can be taken out evenly and smoothly using one hand. The locking device of the present invention has simple structures, and can avoid case abrasion mark and abrasion destroy of the oven grill due to uneven force exerted by two hands when pulling out the oven grill. Moreover, it also can avoid the situation that the oven grill loses balance and tilts to one side thereof due to the uneven force of two hands, in turns, prevent food sprinkling from the oven grill.

While the invention has been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.