JP2604060Y2 - Heater door opening and closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention is grilled was written pairs see <br/> the gas table, relates door opening and closing device of the heating chamber such as a gas oven.

[0002]

BACKGROUND ART grille built into the gas table, the gas oven or the like, the door of the heating chamber with the loading and unloading of the food pan to the heating chamber is rotated to form the opening piece vertically automatic Conventionally, as a door opening / closing device of a heating cabinet which is opened and closed, there are, for example, Japanese Utility Model Laid-Open No. 2-48709 (hereinafter referred to as Conventional Example 1) and Japanese Utility Model Laid-Open No. 1-100017 (hereinafter referred to as Conventional Example 2).

In the prior art 1, a door opening rod is provided at the tip of a slide rod interlocking with a water tray so as to rise obliquely rearward and upward, and the water tray is opened by an opening spring.
When out came argument forward by the biasing force of the sushi, and has a structure to open Lift the Gurirudoa at the door open rod upward.

In addition, as shown in FIGS. 1 and 2 of the accompanying drawings, the prior art example 2 has an arm and a water tray fixed at a predetermined distance inside a door body. The handle is provided in association with a cam linked to the handle, and the arm is pushed to swing the door body to the open position as the cam moves outward in conjunction with the handle.

[0005]

The prior art 1 of the prior art has the above structure, so that when the slide rod and the door open rod advance forward from the storage state, the grill door is lifted by the door open rod. opened by rotating counterclockwise in the drawing, a press and write <br/> Murrell slide rod and the door opening rod rearward from the open state, the lift holding is released door opening rod is brought to retreat It is closed by being rotated clockwise in the figure by its own weight.

[0006] Therefore, when the grill door is released, it slides.
The front end of the rod pops out of the grill door
Mau, for example, at the time of the return, etc. of the food such as fish,
The ledge of the slide rod is hardly do work, such as return in the way, moreover, usage crisis such a possibility also to burn hand or the like touches the ledge <br/> slide rod
In addition to the ruggedness, there was a problem that the usability was poor and the operation was not reliable.

The prior art 2 has the above structure.
Since the cam when out came water inlet Sarahiki is in conjunction with the handle pushing the distal end of the arm with the cam brought to move outwardly outwardly, to the open position via the arm to as integral of the door body The door body is pushed open, and the door body is closed via the arm by an operation opposite to that at the time of pulling out the water tray.

Accordingly, since it is intended for opening and closing the door body only at the contact operation which forms the arm circular motion with respect to the horizontal motion of the cam, the frictional resistance of the cams and the arm there is a difficulty in significantly larger it becomes in operability not only, door this the certainty in the operation is rather than name, also, and extract the water-ingress-dish to the outside-compartment
There was a problem that the body closed under its own weight .

The present invention has been made to solve the above-mentioned problems of the prior art and to provide a safe and easy-to-use heating cabinet door opening / closing apparatus.

[0010]

[0011]

Means for Solving the Problems The present invention for solving the above problems.
The door opening and closing device for a heating cabinet according to claim 1 is a door opening and closing device for a heating cabinet in which a door of the heating cabinet is opened and closed in a one-sided manner in a vertical direction in accordance with putting in and taking out a dish to be cooked into and out of the heating cabinet. The tray and the door are connected to each other by a link mechanism on the front side of the heating chamber, which changes and transmits a reciprocating motion of a constant stroke of the tray into a rotational motion from full closing to full opening and full opening to full closing of the door and transmits the door. An opening that urges the door in a normally open direction is provided, and the opening has an urging force capable of elastically holding the door at a fully open position when the pan is pulled out, and the link mechanism has one end inside the door. A movable rod pivotally supported by the movable rod; a pushing rod that is pivotally connected to the other end of the movable rod and is interlocked with the tray for a fixed reciprocating stroke of the tray; and the movable lever is opened by the urging force of the sprung door. Direction and push the pushing rod to the pan And gist that a common drive rod pushing in the direction drawn.

[0012]

[0013]

According to the first aspect of the present invention, when the tray is pulled out by a predetermined stroke, the tray opening / closing device according to the first aspect of the present invention promotes the pulling-out force of the tray via the driving rod and the pushing rod by the urging force of the spring. Then, the door is pushed up in a single-opening manner via the movable rod by the urging force of the spring, and is held fully open. At this time, the link mechanism appropriately pushes up and fully holds the drawer door of the tray in combination with the urging force generated by the spring.

[0014]

Next, when storing the pan in the heating chamber,
In a fixed retreat stroke in the latter half, the pan and the door are interlocked via the link mechanism, and the door is fully opened to fully closed.

While the tray is pushed in for the latter half of the fixed stroke, the pushing rod interlocking with the tray is pushed in, and in conjunction with this, the door is pulled down by the movable rod in a single-open state to fully close the door.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a heating / closing door opening / closing device according to the present invention.

The examples are those applied to the grille built into the gas table, in FIGS. 1 and 2, 1 is the food pan, i.e., grill pan, heating chamber of the grill, i.e., grill box A is slid linearly along a guide rail 8 provided on the bottom wall 7 of A, so that it can be easily stored in and pulled out of the grill A from the front opening 9 of the grill A. Have been.

A handle 10 is integrally fixed to a front portion of the grill plate 1 via a mounting bracket 11, and a protrusion 12 for stopper is provided on a rear bottom surface of the grill plate 1. When the grill pan 1 is stored in the grill tray A, the stopper projection 12 is engaged with a locking projection 13 provided on the bottom wall 7 of the grill warehouse A to lock the grill pan 1 in a predetermined storage position.

Reference numeral 2 denotes a heating cabinet door, that is, a grill door.
The grill door 2 is pivotally mounted on a front opening 9 of the grill warehouse A by a support shaft 14, and the grill door 2 is provided so as to be able to open and close in a vertically open manner with the support shaft 14 as a fulcrum. The grill pan 1 is opened and closed with the handle 10.

The relationship between the grill door 2 and the handle 10 is as follows.
When the grill door 2 is fully opened (when the grill pan is stored), the lower end 2a of the grill door 2 is in contact with the inside of a projection 10a provided on the handle 10 of the grill pan 1, and the front opening 9 of the grill warehouse A is opened. When the grill door 2 is fully opened (when the grill pan is pulled out), the linear forward movement of the grill pan 1 and the pivoting movement of the grill door 2 in the opening direction are synchronized. The grill door 2 can be opened without any trouble.

[0022] B is a linkage, is built into the front sides of the grill box A, the structure, when grill pan housed in grill pan 1 tip is in contact with the inner surface 10b of the handle 10 of the grill pan 1 A push rod 3 interlocked with the grill pan 1 for a reciprocating stroke a, and a base end pivotally supported by a support shaft 15 for pivotal movement, and a front end portion of which pushes up one end of a base end extension piece 16 to push up a grill door 2. A driving rod 5 urged in a pulling-out direction of the grill pan 1 by a spring 4 having an elastic force necessary for opening and holding the opening.
One end of the support shaft 1 is located below the support shaft 14 of the grill door 2.
The movable rod 6 is pivotally supported at 7. The other end portions of the pushing rod 3, the driving rod 5 and the movable rod 6 are gathered and pivotally supported by a common support shaft 18. .

The forward / backward stroke a of the grill pan 1 is determined, for example, by restricting the movement of the link mechanism B to a predetermined value by any means.

In the figure, 22 is a grill burner, 23 is an exhaust path, 24 is an exhaust port, 25 is a gas table, and 26 is a pot placed on the gas table.

The operation of the above arrangement will be described below. When the grill pan 1 is stored in the grill storage A and the stopper projection 12 is engaged with the locking projection 13 and locked at a predetermined position. The grill warehouse 2 is in a substantially vertical closed position, and is urged in the opening direction (clockwise in the drawing) by the sprout 4 via the driving rod 5 and the movable rod 6 of the link mechanism B, and
The push rod 3 is pressed against the inner surface 10b of the handle 10 to urge the grill pan 1 in the pull-out direction (see the position indicated by the solid line in FIG. 1).

In order to use the grill, when the grill pan 1 in the storage locked state is pulled forward with its handle 10, the grill pan 1 is moved so that the stopper projection 12 passes over the locking projection 13. Unlocked and pulled straight out.

In a predetermined forward stroke a regulated by an initial guide slot (not shown) in the pulling-out operation of the grill pan 1, the driving rod 5 is rotated counterclockwise in the drawing by the pulling force of the sprout 4. Then, the pushing rod 3 pushes the inner surface 10 b of the handle 10 to promote the pulling force of the grill pan 1, and at the same time, the grill door 2 is pushed up and rotated clockwise in FIG. Fully open (see the position of the dashed line in FIG. 1).

When the grill door 2 is fully opened by the forward stroke a of the grill pan 1, the pushing rod 3, the driving rod 5, the movable rod 6
Is stopped, and the grill door 2 is held at the fully open position by the pulling force of the sprung bar 4.

Thereafter, when the grill plate 1 is continuously pulled out forward, the grill plate 1 is kept in the fully open position while the grill door 2 is kept at the fully open position.
Is pulled out to a predetermined position and escapes from the grill storage A as needed. At this time, the push rod 3 of the link mechanism B
Stands by at the fully open position of the grill door 2 (the position indicated by the chain line in FIG. 1).
ing.

After water is put into the drawn-out grill plate 1 and objects to be cooked, such as fish, are placed on the grill, the grill plate 1 is moved to the grill storage A.
When the grill pan 1 is pushed straight back along the guide rail 8 when the grill pan 1 is inserted into the inside, the inside of the handle 10 b
The leading end of the push rod 3 waiting at the open position abuts, and the push rod 3 interlocked with the handle 10 is pushed backward by the push rod 3 interlocking with the handle 10 in the subsequent retraction stroke a to drive the drive rod 5 Is pivoted clockwise in the figure to pull the grill door 2 down via the movable rod 6 while applying a constant tensile force to the sprung 4 and counterclockwise in the figure with the support shaft 14 as a fulcrum to a substantially vertical fully closed position. Rotate to fully open (see the solid line position in FIG. 1).

When the grill door 2 is fully opened by the forward and backward stroke a of the grill pan 1, the movement of the link mechanism B composed of the pushing rod 3, the driving rod 5, and the movable rod 6 is stopped, and the grill pan 1
The stopper projection 12 is engaged beyond the locking projection 13 and locked in a predetermined storage position (see FIG. 1).

With the above-described series of operations, the grill door 2 is automatically opened and closed by opening and closing the grill door 2 in the vertical direction via the splicing member 4 and the link mechanism B when the grill dish 1 is put in and out of the grill warehouse A. However, the link mechanism B for interlocking the grill pan 1 and the grill door 2 is compactly incorporated on both sides in front of the grill storage A.

[0033]

[0034]

[Effect of the invention] The door opening and closing device of the heating chamber according to the invention is:
The link mechanism pushes the door in the direction to open the door from the common drive rod via the movable rod with the biasing force of the firing, and pushes the tray out through the pushing rod, so that the biasing force of the firing is Efficient transmission to doors and pans. Accordingly, the interlocking operation between the drawer of the tray and the opening and holding of the door can be performed lightly and reliably without malfunction under a simple structure.

[Brief description of the drawings]

FIG. 1 is a partially cut-away side view of a door opening / closing device for a heating cabinet according to the present invention.

FIG. 2 is a schematic plan view of only a main part.

[Explanation of symbols]

 Reference Signs List A Heating storage (grill storage) 1 Receiving tray (grill pan) 2 Door (grill door) a Reciprocating stroke B Link mechanism 3 Pushing rod 4 Spring 5 Driving rod 6 Movable rod

Claims (1)

(57) [Scope of request for utility model registration] 1. A heating / closing door opening / closing device wherein a door of a heating cabinet is opened / closed in a vertically open / closed manner when a cooking object receiving tray is taken in / out of the heating cabinet. And a link mechanism for transmitting a change in the forward / backward movement of the pan with a constant stroke to a rotational movement from fully closed to full open and from full open to full closed of the door and transmitting the same, and a spring for constantly urging the door in the open direction is provided. The spring has an urging force capable of elastically holding the door in a fully open position when the tray is pulled out, and the link mechanism includes a movable rod having one end pivotally supported inside the door; A push rod that is pivotally connected to the other end of the movable rod and interlocks with the tray for a constant stroke of the tray, and that the movable rod pushes the movable rod in a direction in which the door opens by the urging force of the spring and pushes the push rod. Common to push in the direction that the saucer is pulled out Door opening and closing device of the heating chamber, characterized in that a drive rod.