JPH0610715U - Door opening / closing device for heating cabinet - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure the interlocking of the grill plate and the grill door. [Structure] An engaging piece 6 is provided on the back surface 2a of the grill plate 2,
Moreover, the slide hole 5 for guiding the base end portion 3c of the connecting rod 3 is formed in an oblique shape, and at least the first half of the forward stroke when the grill plate 2 is pulled out, the base end portion 3 of the connecting rod 3 is formed.
c is engaged with the engaging piece 6 integrated with the grill plate 2 to forcefully move the connecting rod 3 by the grill plate 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door opening / closing device for a heating cabinet such as a grill and a gas oven incorporated in a gas table.

[0002]

[Prior art]

 In a grill, gas oven, etc. built into a gas table, the heating cabinet door opens and closes automatically as the cooking cabinet tray is moved in and out of the cooking cabinet. As such a door opening / closing device, there are, for example, Japanese Utility Model Laid-Open No. 2-487009 (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 above-mentioned conventional example 1, a door open rod is provided at an end portion of a slide rod that interlocks with a water receiving tray so as to stand in a bow shape obliquely rearward and upward, and when the water receiving tray is pulled out, the grill door is opened by the door open rod. It is structured so that it can be lifted up and opened.

The conventional example 2 is, in particular, as shown in FIGS. 1 and 2 of the accompanying drawings, an arm and a water tray fixed at a predetermined distance inside the door body. The handle is linked to a cam that is interlocked with the handle, and the arm is pushed to swing to the open position as the cam moves outward in conjunction with the handle.

[0005]

[Problems to be solved by the device]

 In the conventional example 1 of the above-mentioned conventional technique, when the slide rod and the door open rod advance from the stored state to the front, the grill door is lifted by the door open rod and pivoted counterclockwise in the drawing to open the grill door. When the open rod is pushed rearward from the open state, as the door open rod retreats, its lifting hold is released, and the door open rod is rotated by its own weight in the clockwise direction in the figure to be closed.

Therefore, when the grill door is opened, the door open rod that is erected upward in a bow shape is pulled out to the front of the grill main body together with the water tray, so that, for example, when the cooked food such as fish is returned. The door open rod is a hindrance, making it difficult to return the door open rod, etc., and it may cause burns when the door open rod is touched by a fingertip, etc. There was a problem that there was no certainty.

Further, in Conventional Example 2, as the cam moves outward in conjunction with the handle when the water tray is pulled out, the tip of the arm is pushed outward by the cam, and the door body integrated with this is pushed. The door is pushed open to the open position via the arm and the door body is closed via the arm when the water tray is stored, which is the reverse of the operation when the water tray is pulled out.

Therefore, since the door body is opened and closed only by the contact movement in which the arm makes a circular movement with respect to the horizontal movement of the cam, the friction between the cam and the arm is accompanied by the holding operation in the open position of the door body by the arm. Not only did the resistance increase significantly and there was a difficulty in operability, but there was also the problem that its operation was not reliable.

Therefore, in view of the above problems of the conventional technology, the applicant uses the door of the heating cabinet lightly and surely opened and closed when the tray for the object to be processed of the heating cabinet is taken in and out. I have previously filed a proposal for a door opening / closing device for a heating cabinet that is easy to operate and has excellent operability (Practical application Nos. 3-99386 and 4-30395).

In each of the inventions according to the above-mentioned prior applications, since the base end connecting portion of the connecting rod is only in contact with the back portion of the tray, the connecting rod when the grill or the like is not used for a long time, If the connecting rod sticks to the slide hole etc. and becomes difficult to separate due to sticking of the door, etc., or oil stains etc. even during use, the sticking overcomes the force of the spring and only the saucer is pulled out to open the door. May not open.

In view of the problems of the invention of the above-mentioned prior application, the present invention forcibly moves the connecting rod by the tray for at least the first half of the forward stroke when the tray and the tray are withdrawn. It is an object of the present invention to provide a door opening / closing device for a heating cabinet in which sticks and the like of rods and the like can be easily released and the saucer and the door can always be reliably interlocked.

[0012]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the door opening / closing device of the heating cabinet of the present invention, for example, as shown in FIGS. The door 1 is provided so as to be interlocked by the forward / backward stroke a of the tray 2 in which the door 1 is changed from fully closed to fully open and fully open to fully closed via the connecting rod 3 and the spring 4, and the forward / backward movement of the tray 2 at the forward / backward stroke a In the door opening and closing device of the heating cabinet, the door 1 is opened and closed in the vertical direction as the saucer 2 is taken in and out of the heating cabinet A by transmitting it to the heating cabinet A by transmitting it to the base end of the connecting rod 3. A slide hole 5 for guiding the portion is formed in an oblique shape, and an engaging piece 6 is provided at a part of the receiving plate 2 which comes into contact with the connecting rod 3 on the back side of the receiving plate. At this time, the base end of the connecting rod 3 moves up and down and automatically engages and disengages. At least in the first half, the tray 2 and the connecting rod 3 are integrally engaged with each other so that the connecting rod 3 is forcibly moved by the tray 2, and the engaging relationship is released in the latter half. It is characterized in that the receiving tray 2 and the connecting rod 3 are automatically engaged at least in the latter half of the backward stroke.

[0013]

[Action]

 Since the door opening / closing device of the heating cabinet of the present invention is configured as described above, when the saucer 2 of the cooked food stored in the heating cabinet A is pulled out forward, the forward stroke of the forward / backward stroke a At least in the first half, since the base end portion of the connecting rod 3 is engaged with the engaging piece 6, the connecting rod 3 is forcibly moved forward by the tray 2.

Therefore, even if the connecting rod 3 or the like is stuck due to oil stains or the like, the stick is released and the door 1 is surely opened in at least the first half of the forward stroke.

When the tray 2 reaches the latter half of the forward stroke in the forward / backward stroke a, the base end portion of the connecting rod 3 moves upward along the slanted slide hole 5, so that the base end portion engages with the engaging piece 6. After that, the engaging relationship between the receiving tray 2 and the connecting rod 3 is released, and thereafter, only the receiving tray 2 is independently pulled out.

Next, when the saucer 2 is stored in the heating cabinet A, when the saucer 2 reaches the backward stroke of the advance / retreat stroke a, the base end portion of the connecting rod 3 follows the slanted slide hole 5. And moves downward, the base end is engaged with the engaging piece 6 at least in the latter half of the backward stroke so that the receiving tray 2 and the connecting rod 3 are integrally engaged. Then, in the backward stroke, the door 1 is closed via the connecting rod 3.

[0017]

【Example】

 An embodiment of a door opening / closing device for a heating cabinet according to the present invention will be described below with reference to the drawings.

The embodiment is applied to a grill built in a gas table, and in FIGS. 1 to 3, reference numeral 1 is a door of a heating cabinet, that is, a grill door for opening and closing a front opening 7 of the grill cabinet A. The front opening 7 of the grill cabinet A is rotatably and pivotally mounted on a front opening 7 of the grill cabinet A so that it can be opened and closed in a vertical direction with the support shaft 8 as a fulcrum. 7 is securely opened and closed by the handle 9 of the grill plate 2 described later.

Reference numeral 2 is a saucer for the food to be cooked, that is, a grill pan, which is linearly slid along a guide rail 11 provided on the bottom wall 10 of the grill cabinet A for storage in the grill cabinet A and grilling. The drawer A is provided so that it can be easily pulled out from the front opening 7 of the grill cabinet A while keeping it horizontal.

A handle 9 is integrally attached to the front part of the grill plate 2 via a mounting bracket 12, and a stopper projection 13 is provided on the rear bottom surface of the grill plate 2 to hold the grill plate 2 in the grill cabinet. When stored in A, the stopper projection 13 is engaged with a locking projection 14 provided on the bottom wall 10 of the grill cabinet A so that the grill plate 2 is locked at a predetermined storage position. There is.

The relationship between the grill door 1 and the handle 9 of the grill plate 2 is that the lower end portion 1a of the grill door 1 holds the grill plate 2 when the grill door 1 is fully closed (when the grill plate is stored). When the grill door 1 is fully opened (when the grill pan is pulled out), the front grille A of the grill cabinet A is closed so that the front opening 7 of the grill cabinet A does not have a gap. The linear forward movement of 2 and the pivoting movement of the grill door 1 in the opening direction are synchronized with each other so that the grill door 1 can be opened without any trouble.

Reference numeral 3 denotes a connecting rod for interlocking the grill plate 2 and the grill door 1 at a certain forward / backward stroke a of the grill plate 2, and as shown in FIG. 2, has a wire rod. The front end shaft portions 3b of the both side portions 3a, which are formed in a U shape in a plan view, are inserted into the front end shaft hole 15a of the arm rod 15 provided on the grill door 1, and the base end connecting portion 3c is formed on the side wall 16 of the grill cabinet A. It is inserted into the front slanting slide hole 5 and is brought into contact with the rear surface portion 2a of the grill plate 2.

The slide hole 5 regulates the advancing / retreating guide of the connecting rod 3 and the forward / backward movement of the connecting rod 3 to a constant advancing / retreating stroke a, and at the advancing / retreating stroke a, the base end portion 3c of the connecting rod 3 is moved. It is for moving up and down to engage and disengage with an engaging piece 6 which will be described later. In this forward and backward stroke a, the connecting rod 3 and the grill plate 2 are interlocked via the connecting rod 3 and the spring 4, and the forward and backward stroke a. By changing the forward / backward movement of the grill plate 2 to the rotary movement of the grill door 1 and transmitting the movement, the grill door 1 is opened and closed.

Note that the fully open position (generally horizontal position) and the fully closed position (generally vertical position) of the grill door 1 are regulated by a constant forward / backward stroke a by the slide hole 17 as in the embodiment, but not shown. Alternatively, the rotation angle of the grill door 1 may be restricted to a certain angle.

The spring 4 serves to lift and rotate the grill door 1 upward in the forward stroke a of the grill plate 2 where the grill door 1 is fully opened, and hold the grill door 1 open. Ends 3c and hooking rods 17 pivotally mounted on the side wall 16 of the grill cabinet A are hooked at both ends to open the grill door 1 and the stowed grill plate 2 in the pulling-out direction. Is urged through.

Reference numeral 6 denotes an engagement piece provided on the back surface 2 a of the grill plate 2, and the base end portion 3 c of the connecting rod 3 inserted into and supported by the slanted slide hole 5 in the engagement piece 6 has a base end portion 3 c. The structure is such that it automatically engages and disengages during the forward / backward stroke a.

The relationship between the slanted slide hole 5, the base end portion 3 c of the connecting rod 3 and the engaging piece 6 is such that at least the first half of the forward stroke when the grill tray 2 is pulled out is integrated with the grill tray 2. The engaging piece 6 and the base end portion 3c of the connecting rod 3 are engaged with each other to forcibly move the connecting rod 3 by the grill plate 2, and the base end portion 3c is disengaged from the engaging piece 6 in the latter half of the forward stroke. The plate 2 can be moved separately from the connecting rod 3, and at the time of retracting the grill plate 2 during storage, at least in the latter half thereof, the engagement piece 6 is engaged with the base end portion 3c. There is.

The engaging / disengaging means is not limited to the one having the configuration of the above-described embodiment, but any other engaging / disengaging means may be used in practice.

In the figure, 18 is a grill burner, 19 is an exhaust passage, 20 is an exhaust port, 21 is a gas stove of Gotoku, and 22 is a pot placed on Gotoku.

In the above structure, the operation will be described below. The grill plate 2 is housed in the grill cabinet A, and the stopper protrusion 13 is engaged with the locking protrusion 14 to be locked at a predetermined position. When the grill door 1 is in a substantially vertical closed position, it is urged by the spring 4 in the opening direction (clockwise direction in the drawing) through the connecting rod 3, and the grill plate 2 is also pulled out in the pulling direction (left side in the drawing). ) (See the position indicated by the solid line in FIG. 1).

Therefore, when using the grill, when the grill plate 2 stored and locked in the grill cabinet A is pulled forward by holding the front grip 9, the grill plate 2 engages with the stopper projection 13 thereof. The lock is released over the stop protrusion 14 and is pulled out linearly.

At least the first half of the forward stroke of the forward / backward stroke a when the grill tray 2 is pulled out, the base end portion 3c of the connecting rod 3 is engaged with the engaging piece 6 integral with the grill tray 2 so that the grill is Forcibly move the rod 3 with the plate 2.

Therefore, even if the connecting rod 3 or the like is stuck due to oil stains or the like, the sticking is released in at least the first half of the forward stroke, so that the grill plate 2 and the connecting rod 3 pull the spring 4 in a constant forward stroke. The grill door 1 is moved to the left side in the figure together by force, and the grill door 1 is pushed up by the pulling force of the spring 4 in the clockwise direction in the figure with the spindle 8 as a fulcrum to be fully opened (see the position of the chain line in FIG. 1). ).

By the time the connecting rod 3 reaches the end of the forward stroke, the base end portion 3 c of the connecting rod 3 moves upward along the slanted slide hole 5 and disengages from the engaging piece 6, and the engaging piece 6 Since a gap b is formed between the grill plate 2 and the connecting rod 3 and the engaging relationship is released, only the grill plate 2 is moved after the base end portion 3c of the connecting rod 3 reaches the forward stroke and its movement is restricted. Is pulled out to a predetermined position by itself, and escapes from the grill cabinet A as necessary.

After putting water in the pulled-out grill plate 2 and placing an object to be cooked on the grill, when the grill plate 2 is stored in the grill cabinet A, the grill plate 2 is placed on the guide rail 11. When the grill plate 2 is linearly pushed rearward along the rearward stroke, the rear face portion 2a of the grill plate 2 and the base end portion 3c of the connecting rod 3 come into contact with each other so that the grill plate 2 and the connecting rod 3 are integrated. Therefore, he retreats against Stroke 4.

At the latter half of at least the rearward stroke of the advancing / retreating stroke a when the grill tray 2 is stored, the base end portion 3c of the connecting rod 3 is engaged with the engaging piece 6 integral with the grill tray 2 at the time of the next withdrawal. Prepare

That is, when the grill plate 2 reaches the backward stroke, the connecting rod 3 moves integrally with the grill plate 2, and the base end portion 3 c of the connecting rod 3 moves downward along the slanted slide hole 5. It is because. Then, in the constant backward stroke, the connecting rod 3 is moved to the right side in the drawing by the grill plate 2, the grill door 1 is pulled down counterclockwise in the drawing about the spindle 8 as a fulcrum to be fully closed, and the spring is started. A constant tensile force is applied to No. 4 (see the position indicated by the solid line in Fig. 1).

When the grill door 1 is fully closed by the backward stroke, the grille 2 is locked at a predetermined storage position by locking the stopper projection 13 over the locking projection 14.

[0039]

[Effect of device]

 Since the door opening / closing device of the heating chamber according to the present invention has a structure in which the connecting rod is forcibly moved at least in the first half of the forward stroke when the receiving tray is pulled out, the connecting rod sticks to the connecting rod or the like when it is not used for a long period of time, or Even during use, even if the connecting rod or the like sticks due to oil stains, etc., the saucer and the connecting rod are always linked so that the door can always be opened reliably.

Further, if the engaging / disengaging means has a structure in which the base end of the connecting rod which moves up and down by the slanted slide hole is engaged and disengaged with the engaging piece provided in the tray, the structure becomes extremely simple, and The operation is light and reliable, so it is easy to use.

[Brief description of drawings]

FIG. 1 is a partially cut side view showing an embodiment 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.

FIG. 3 is a sectional view of only an engagement / disengagement portion.

[Explanation of symbols]

 A heating cabinet (grill cabinet) 1 door (grill door) 2 saucer (grill tray) a advance / retreat stroke 3 continuous rod 4 spring 5 slide hole 6 engaging piece

Claims (1)

[Scope of utility model registration request] 1. A door of a heating cabinet is provided so as to be interlocked with an advancing / retreating stroke of the saucer in which the door is fully closed to fully open and fully open to fully closed via a connecting rod and a spring through a saucer of a food to be cooked. In the door opening and closing device of the heating cabinet, the door is opened and closed in a vertical direction as the tray is moved into and out of the heating cabinet by transmitting the forward and backward movements of the saucer by transmitting it to the rotary movement of the door. A slide hole for guiding the portion is formed in an oblique shape, and an engaging piece is provided at a receiving plate rear surface abutting portion with the connecting rod of the receiving tray, and the base end portion of the connecting rod is provided on the engaging piece in the advancing and retracting stroke of the receiving tray. It moves up and down and automatically engages and disengages, and at least during the forward stroke when the tray is pulled out, the tray and the connecting rod are engaged integrally at least in the first half, and the receiving rod is forcibly moved by the tray, and in the latter half the engagement. Releasing stroke when releasing the relationship and storing the saucer In the above, at least in the latter half thereof, the saucer and the connecting rod are automatically engaged with each other.