JP2004353980A - Door opening/closing mechanism for toaster oven - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the occurrence of a large gap between a door of a freely closeable toaster oven and a toaster oven body even in the case that a bearing portion is protruded on the rear face of the door and an opening/closing shaft is provided on the bearing portion. <P>SOLUTION: The bearing portion 4 is protruded on the rear face of the freely closeable door 2 arranged on the front face of the opened toaster oven body 1, and a supporting shaft 3 extending to the cross direction of the door is journaled to the bearing portion 4. The supporting shaft 3 formed in a gate crank shape is supported at both ends on the bearing portion 4 of the door and at its intermediate supporting portion 3a on a bearing member 5 arranged on a front portion of the toaster oven body 1. Thus, two supporting points exist which are turned for opening/closing the door 2, and the bearing portion 4 itself supporting the door is moved around the supporting portion 3a of the supporting shaft 3. The gap between the toaster oven body 1 and the door 2 is therefore reduced in the state of closing the door 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an opening and closing mechanism for a door in an oven toaster, which normally rotates around a lower end to open and close the front surface of a toaster body.
[0002]
[Prior art]
The door of the oven toaster is formed in a window frame shape fitted with a glass plate so that the cooking state of the food can be seen. As disclosed in Patent Document 1, this door is formed in a window frame shape by sandwiching a glass plate between metal frames arranged in front and rear, and an oven is opened from the metal frame to the side. A support shaft for supporting the toaster body is projected. That is, the support shaft is arranged at a position substantially at the center of the thickness of the door, and the door can be opened and closed by a rotating operation. In addition, the support shaft of the door can be removed from the oven toaster main body by being able to protrude and retract in the axial direction.
[0003]
In addition, inside the oven toaster, heaters are arranged above and below the oven toaster, and a grill is arranged between the upper and lower heaters so that the food on the grill can be heated and cooked. The front end of the grill is engaged with a part of the door so that the grill is maintained in a horizontal state and comes out of the oven toaster body as the door is opened and closed. Further, on the bottom surface inside the oven toaster body, a waste tray that can be pulled out forward is arranged so that bread waste generated during cooking can be removed at any time.
[0004]
[Patent Document 1]
JP-A-8-466 (see FIG. 4)
[0005]
[Problems to be solved by the invention]
Since the door of the conventional oven toaster has a structure in which the support shaft protrudes outward at a position substantially at the center of the thickness, the thickness of the door itself becomes thick, and a thin plate-shaped door cannot be adopted. When a thin plate-shaped door is adopted as the door for the oven toaster, it is necessary to project a bearing on the back of the door, attach a support shaft to the bearing, and support the oven toaster body. Therefore, the distance between the axis of the support shaft and the lower end of the door is increased, and it is necessary to secure a relatively large rotating space at the lower end of the door to open and close the door. This results in a large gap at the lower end of the door, specifically, a relatively large gap between the waste tray and the lower end of the door, resulting in poor appearance and reduced heating efficiency.
[0006]
In view of the above-mentioned drawbacks of the prior art, the present invention has a bearing portion protrudingly arranged on the rear surface of a door, and a supporting shaft extending in the width direction of the door is supported by the bearing portion. Therefore, it is an object of the present invention to provide an oven toaster door opening / closing mechanism that does not need to provide a large gap between the oven toaster and the main body, and can be configured to have a good appearance. .
[0007]
[Means for Solving the Problems]
According to the present invention, in order to provide a support shaft 3 on a door 2 that opens and closes the front surface of the oven toaster body 1, bearings 4 and 4 are projected from the rear surface of the door 2, and the support shaft 3 is attached to the bearings 4 and 4. It is arranged in the width direction of the door 2 and is pivotally supported. Then, by forming the support shaft 3 in a crank shape, a support portion 3a having an axis at a position away from the axis of a bearing position with the bearing portion 4 provided on the rear surface of the door is formed on the support shaft. The crank-shaped support portion 3a is supported by a bearing member 5 disposed at a front portion of the oven toaster main body 1. That is, the support shaft 3 of the door has two fulcrums, and by moving the center of rotation of the door 2 and the support shaft 3, the waste tray 6 disposed at the lower end of the door 2 and the bottom of the oven toaster main body 1. And can be opened and closed without forming a large gap between them.
[0008]
It is more effective that the supporting position of the support shaft 3 in the bearing member 5 disposed in the front part of the oven toaster main body 1 is allowed to move by a certain dimension in the front-rear direction. In order to allow the pivoting position to move in a certain dimension, the bearing members 5 provided at the front portion of the oven toaster main body 1 are arranged at two places on the left and right, and the bearing member 5 is formed with a long hole 7. This can be achieved by pivotally supporting the support portion 3a of the support shaft 3.
[0009]
The door 2 can be easily removed by making the support shaft 3 detachable from the elongated hole 7 of the bearing member 5. In order to make the support shaft 3 detachable from the slot 7, the notch 8 is formed above the slot 7 so that the support shaft 3 is inserted into the slot 7 from the notch 8 above. can do. At this time, as shown in FIG. 6, if the notches 7, 7 formed in the two left and right bearings are formed at different positions in the front-rear direction, the support 3a of the support shaft 3 may come off unnecessarily. Disappears. Further, the position of the door 2 is stabilized by employing a structure in which the door 2 is constantly elastically pulled rearward.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a door opening and closing mechanism of an oven toaster according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a longitudinal sectional view of an oven toaster provided with a door opening / closing mechanism according to the present invention, FIG. 2 is a perspective view of the entire oven toaster with a door opened, and FIG. 3 is a perspective view with a door closed. is there.
[0011]
In the oven toaster, the heating chamber 9 is formed by surrounding the inside of the outer case 1a with a heat shield plate 1b, and the heating chamber can be closed by disposing the openable door 2 on the open front surface. ing. Inside the heating chamber 9, heaters 10, 10 are disposed above and below the heating chamber 9, and a grill 11 for placing a food such as a pan is disposed between the heaters 10, 10. The grill 11 is pulled out of the container when the door is opened in conjunction with opening and closing of the door 2. Further, on the bottom surface of the heating chamber 9, a waste tray 6 is detachably disposed so that bread waste generated during cooking can be discharged at any time.
[0012]
As shown in FIG. 4, the door 2 provided on the front surface of the oven toaster body 1 to be opened, that is, the front surface of the heating chamber 9, has a square frame-shaped door frame 2 a, a glass plate 12 mounted on the door frame 2 a, and a holding member 13. It consists of: The door frame 2a has its entire shape formed into a planar rectangular frame, and has rising pieces 2b, 2b formed on the outer peripheral edges of four sides. The thin door 2 is completed by adopting a structure in which the glass plate 12 is held by the four rising pieces 2b, 2b on the four sides. Since the door 2 does not have a structure in which the glass plate 12 is sandwiched from the front and back unlike a conventional door, as shown in FIG. It can be completed as a toaster.
[0013]
The support shaft 3 of the door 2 having a thin structure is supported by bearings 4 disposed on the left and right sides at the lower portion of the rear surface of the door frame 2a which is the rear surface of the door. The support shaft 3 is formed in a substantially gate-like crank shape to form a support portion 3a at an intermediate portion, and both ends 3b, 3b are supported by the bearing portions 4, 4. On the other hand, at the front end of the oven toaster body 1, bearing members 5 each having a shape shown in FIG. The door 2 is attached to the oven toaster body 1 by supporting the support 3a of the shaft 3.
[0014]
As shown in FIG. 5, the bearing member 5 has a plate-shaped main portion 5 a disposed in the front-rear direction, provided with a long hole 7 in the front-rear direction, and a cutout 8 formed from the upper edge to the long hole 7. Then, a right-angled cut-and-raised piece 5b is formed in a part of the main body portion 5a so that it can be screwed to the front surface of the oven toaster main body 1. The long hole 7 formed in the bearing member 5 is inclined so as to descend rearward as can be understood from FIGS. 5 and 1. Further, the front end of the bearing member 5 main body 5a is formed with a fold in a predetermined length range from the lower end, thereby forming a narrow guide piece 5c.
[0015]
On the rear surface of the door 2, a connecting rod 14 connected to the grill 11 is fixed in the lateral width direction above the support shaft 3. The grill 11 is disposed in the heating chamber 9 of the oven toaster main body 1 in such a manner that it can be moved in the front-rear direction while maintaining a horizontal state. The hook 11 a formed by bending the front end of the grill 11 is engaged with the connecting rod 14 provided on the rear surface of the door 2, thereby opening and closing the door 2. Can protrude from the heating chamber 9.
[0016]
The rear end of the grill 11 is supported by engaging the grill support piece 15 with a holder 16 fixed to the lower surface of the grill. The grill support 15 protruding from the side wall of the heating chamber 9 is movable along a guide groove 17 which appears in an arc shape in FIG. 1, and a spring (not shown) is formed rearward in the arc shape. Powered by The receiving member 16 fixed to the lower surface of the grill has a hook shape that is opened forward.
[0017]
The trajectory of the grill support piece 15, that is, the radius of curvature of the guide groove 17 is substantially equal to the distance from the support shaft 3 of the door to the connecting rod 14, and the phases of the rotation are matched. Accordingly, the rear end of the grill 11 is supported by the grill supporting piece 15 and the front end thereof is connected by the connecting rod 14. Further, since the grill net support piece 15 is urged rearward, the door 2 is always pulled rearward by the grill net 11.
In addition, a handle 18 for opening and closing the door is fixed to the front surface of the upper end of the door 2.
[0018]
The movement of the mechanism of the support shaft 3 when the door 2 is opened and closed will be described with reference to FIGS.
FIG. 7 shows a state in which the door 2 is closed. However, the door 2 is pulled rearward through the grill 11 and the long hole 7 of the bearing member 5 is inclined in a direction to descend rearward. By virtue of this, the support portion 3 a of the support shaft 3 is stabilized in a state where it is supported behind the elongated hole 7. Incidentally, the door 2 is provided with a rotation center O ₁ of the pivotally supported position of the support shaft 3, it will be equipped with two centers of rotation O ₂ of the support portion 3a.
[0019]
When the door 2 starts to open from the state shown by the solid line in FIG. 7, the lower end of the door 2 is slightly inclined to the front end of the bearing member 5, that is, the guide piece 5c, as shown by the two-dot chain line in FIG. Abut In this state, when the door 2 is further opened, the bearing 4 moves forward with the lower end of the door 2 as a fulcrum. When the bearing portion 4 moves forward, both ends 3b of the support shaft 3 supported by the bearing portion 4 move forward, but the movement is limited by the movable locus of the support portion 3a of the support shaft 3. Then, the support portion 3a moves forward of the long hole 7. At this time, the lower end of the door 2 is pulled upward while sliding on the guide piece 5c, and reaches the open state of the door 2 shown in FIG. That is, when the door 2 shown in FIG. 8 is opened, the support portion 3a of the support shaft 3 is supported by the front end of the long hole 7 of the bearing member 5, and the lower end of the door 2 is supported by the guide piece 5c at the front end of the bearing member 5. Stabilizes in the state that was set.
[0020]
When the door 2 is closed, contrary to the above case, the door 2 pivots upward with the guide piece 5c at the lower end as a fulcrum, and the contact position between the door 2 and the guide piece 5c moves downward while the rotation center is rotated. 7 while rotating O ₁ and around the rotational center O _2, returns to the original position. At this time, the door 2 stably maintains the closed state by the rearward pulling force through the grill.
[0021]
As described above, the door 2 is mounted on the oven toaster main body 1 by the engagement of the support portion 3a of the support shaft 3 with the long hole 7 of the bearing member 5. Therefore, if the support portion 3a of the support shaft 3 is pulled out from the long hole 7 of the bearing member 5, the door 2 can be removed and cleaning and other handling can be performed. Therefore, the door 2 can be freely removed by forming the notch 8 leading from the upper end edge of the main body 5a of the bearing member 5 to the elongated hole 7.
[0022]
When the door 2 can be attached and detached by providing the bearing member 5 with the notch 8 communicating with the long hole 7, there is a problem if the door is accidentally detached. Therefore, as shown in FIG. 6, by changing the positions of the notches 8 in the bearing members 5, 5 arranged at two places at the front end of the oven toaster, it is possible to maintain a stable mounting state, and at the same time, it is possible to remove the notch. can do. In the embodiment shown in FIG. 6, a notch 8 is provided in the front part of the long hole 7 in the bearing member 5 located on the left side in the drawing, and a notch is provided in the rear part of the long hole 7 in the bearing member 5 located on the right side in the drawing. The parts 8 are respectively formed.
[0023]
In the embodiment shown in FIG. 6, after the support part 3 a of the support shaft 3 is inserted into the long hole 7 of one bearing member 5, the door is moved in the front-rear direction, and the door is supported by the long hole 7 of the other bearing member 5. The door 2 can be mounted by inserting the support 3a of the shaft 3. When the door 2 is to be removed, the door 2 can be removed in the reverse order of the above-described case.
[0024]
In the illustrated embodiment, the door 2 and the grill 11 are engaged. However, when the door is attached and detached, the engagement between the grill 11 and the door 2 is released. When the grill 11 is removed, the door 2 is engaged with the oven toaster body 1 by the support shaft 3. As can be understood from FIG. Since the door 2 is supported by the support portion 3a, the door 2 does not fall off carelessly, and the door that has been set in the free state by removing the grill can be securely attached and detached. This can be done by removing only the grill 11 and cleaning it, or by disengaging the grill and the door, and removing and cleaning only the door while holding the grill in the vessel. It is. Note that the support shaft 3 supporting the door has both ends 3b bent in a gate shape bent outward and supported by the bearing portion 4, but both ends 3b are bent inward. , May be inserted into the bearing portion 4 from outside.
[0025]
【The invention's effect】
According to the door opening and closing mechanism of the oven toaster according to the first aspect of the present invention, a bearing portion is provided so as to protrude from the rear surface of the door, and the bearing portion supports a support shaft extending in the width direction of the door, and the support shaft is cranked. The support portion of the crank-shaped support shaft is supported by a bearing member arranged at the front portion of the oven toaster body. As a result, there are two pivot points that pivot to open and close the door, and the pivoting door that directly supports the door and the bearing itself of the support shaft move. That is, the door can be opened and closed without forming a large gap between the oven toaster body and the lower end of the door. Therefore, the oven toaster in which the bearing portion of the support shaft is disposed on the rear surface of the door can be realized with a small gap and good thermal efficiency.
[0026]
According to the second aspect of the present invention, the support position of the support shaft in the bearing member disposed at the front portion of the oven toaster main body can be settled back and forth by a certain dimension. Therefore, the movable range of the bearing portion of the support shaft is increased, and a state in which the gap between the lower end of the door and the lower end of the oven toaster is small can be realized more effectively.
[0027]
According to the third aspect of the present invention, in carrying out the second aspect of the present invention, the door can be easily attached and detached by forming a notch in the long hole of the bearing member. By changing the position of the notch with respect to the long hole of the bearing member, it is possible to prevent the door from being accidentally detached.
[0028]
According to the fourth aspect of the invention, the door is always pulled rearward, thereby eliminating instability due to the provision of two fulcrum of the door rotation, and maintaining a stable closed state of the door at all times. be able to.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an oven toaster having a door opening / closing mechanism of the oven toaster according to the present invention;
FIG. 2 is a perspective view of the entire oven toaster with a door opened,
FIG. 3 is a perspective view of the entire oven toaster with a door closed.
FIG. 4 is an exploded perspective view of the door as viewed from the rear,
FIG. 5 is a perspective view of a bearing member provided on the oven toaster body,
FIG. 6 is a plan view of a door opening and closing mechanism in a state where the door is opened;
FIG. 7 is a longitudinal sectional side view of a door opening / closing mechanism in a state where a door is closed,
FIG. 8 is a vertical sectional side view of a door opening and closing mechanism in a state where a door is opened;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Oven toaster main body, 1a ... Outer case, 1b ... Heat shield plate, 2 ... Door, 2a ... Door frame, 2b ... Standing piece, 3 ... Support shaft, 3a ... Support part, 3b ... Both ends, 4 ... Bearing part Reference numeral 5: Bearing member, 5a: Main part, 5b: Cut-and-raised piece, 5c: Guide piece, 6: Dust tray, 7: Slot, 8: Notch, 9: Heating chamber, 10: Heater, 11: Grill net Reference numeral 12: glass plate, 13: presser fitting, 14: connecting rod, 15: grilled net support piece, 16: receiver, 17: guide groove, 18: handle.

Claims (4)

A bearing portion is provided by projecting from the rear surface of an openable and closable door disposed on the front surface of the open oven toaster body. By forming a supporting portion having an axis at a position distant from the axis of the pivoting position on the rear surface of the door, and supporting the supporting portion with a bearing member arranged at the front portion of the oven toaster main body, the door The door is rotated by pivoting around a bearing position of a bearing portion and a support shaft provided on the rear surface, and pivoting around a support portion of a support shaft supported by a bearing member arranged on the oven toaster body. A door opening and closing mechanism for the oven toaster that opens and closes. 2. A door opening and closing mechanism for an oven toaster according to claim 1, wherein a bearing position of the support shaft in a bearing member arranged at a front portion of the oven toaster main body is movable forward and backward by a predetermined dimension. Bearing members provided at the front part of the oven toaster body are arranged at two places on the left and right, and the bearing members are made to be movable in the front-rear direction by pivotally supporting the support shafts by the elongated holes, and the support shafts are positioned above the elongated holes from above. 3. A door opening / closing mechanism for an oven toaster according to claim 2, wherein a notch portion into which a hole can be inserted is formed, and notches formed in two left and right bearing portions are formed at different positions in the front-back direction. The door opening / closing mechanism for an oven toaster according to claim 2 or 3, wherein the door that is openably and closably disposed on the front surface of the oven toaster is constantly elastically pulled rearward.

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