JPH083328Y2 - Kitchen - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a kitchen useful for storing Buddhist images, sutras, tiles, etc.

(Prior Art) Conventionally, this type of kitchen is mainly composed of a kitchen main body having an altar inside and having a front opening, and a door provided at the opening of the kitchen main body so as to be openable and closable. (For example, see Japanese Utility Model Publication No. 62-22230). Buddhist statues, sutras, tiles, etc. are properly stored in this kitchen, and the dedication and prayers are performed by opening the book as needed.

(Problems to be solved by the invention) However, in the above-mentioned kitchen, there is a problem that the opening and closing operation of the door is troublesome and troublesome because the devoted person or the like needs to open and close the door directly by himself. In addition, there is a problem in that the opening and closing of the door cannot effectively create an atmosphere during dedication, and that it is not possible to expect the emotions of devoted people to be raised.

The present invention has been made in view of the above problems, and an object thereof is to easily open and close a door and to create a solemn atmosphere when opening and closing the door.
The purpose of this is to provide a shrine that can effectively perform votive offerings by raising the emotions of votives.

(Means for Solving the Problems) In order to achieve the above-mentioned object, a kitchen according to the present invention is provided with an altar inside, and a kitchen main body having a front opening, and a kitchen drive body in opposite directions depending on the operation of a rotary drive source. A driving mechanism having a moving first driving unit and a second driving unit, an inner door that opens and closes an opening of the kitchen body in conjunction with the first driving unit, and an inner door that interlocks with the second driving unit. An outer door that opens and closes the opening of the kitchen main body at a door outer position, and when the two doors are overlapped with each other, a large number of visible portions that allow the surface of the inner door to be visually recognized from the outside in the outer door in the moving direction. Along with
It is characterized in that a pattern whose appearance from the outside changes according to the positional relationship with the visible portion of the outer door when the door is opened and closed is provided on the surface of the inner door.

(Operation) In the kitchen according to the present invention, when the rotary drive source is operated,
The first drive unit and the second drive unit move in opposite directions in response to the operation of the rotary drive source, and in conjunction with these, the inner door and the outer door also move in opposite directions to move the kitchen main body. The opening is opened and closed. Further, when the door is opened and closed, the appearance of the pattern provided on the surface of the inner door from the outside changes according to the positional relationship with the visible portion of the outer door.

(Embodiment) FIGS. 1 to 8 show one embodiment of the present invention.
1 is a front view of the kitchen with the door closed, and FIG. 2 is a view of FIG.
II-II line sectional view, FIG. 3 is a III-III line sectional view of FIG. 2, FIG. 4 is a IV-IV line sectional view of FIG. 3, FIG. 5 is a perspective view of an inner door and an outer door, FIG. 6 is an electric circuit diagram relating to opening and closing of the kitchen door, FIG. 7 is an electrical circuit diagram relating to lighting of the kitchen device, and FIG. 8 is a front view of the kitchen device with the door opened.

In FIG. 1 to FIG. 5, reference numeral 1 denotes a kitchen body, which is a cylindrical body 2, a canopy 3 fixed to an upper part of the body 2, and a lower part of the body 2. The fixed base 4
It consists of and.

The body 2 has a vertically long opening 2a on a part of its peripheral surface (front side).
It also has an altar 2b inside which can hold Buddhist images, sutras, tiles, etc.

The base 4 includes a disc-shaped bottom plate 5, a cylindrical first substrate 6 fixed to the lower surface of the bottom plate 5, and a second substrate 7 fixed to the lower surface of the first substrate 6, which will be described later. It has a built-in drive mechanism for opening and closing the door. An annular groove 6a having a predetermined width is formed on the upper surface of the first substrate 6 along the circumferential direction, and a total of four vertically elongated holes 6b having a circular cross section at 90 ° intervals are formed in the central portion of the annular groove 6a. Has been formed.

The drive mechanism for opening and closing the door is a motor 8a that can rotate forward and backward,
Rotating gear 8b, three guide gears 8c in total, an annular first drive gear 8d having a tooth groove on the outside, an annular first drive gear 8d having an inner tooth groove, and a diameter larger than that of the first drive gear 8d. And the second drive gear 8e. The rotating gear 8b and the guide gear 8c are annular grooves.
Each of them is rotatably housed in a hole 6b of 6a, and a rotating gear 8b.
Is connected to the rotating shaft of a motor 8a arranged in the second substrate 7. Further, the first drive gear 8d and the second drive gear 8e are
The annular groove 6a is housed and arranged inside and outside, respectively, in the annular groove 6a, and meshes with the drive gear 8b and the guide gear 8c in the housed state. That is, the first drive gear 8d and the second drive gear 8e can rotate in opposite directions with the rotation of the rotation gear 8b. A first drive wheel 9a having a width slightly wider than that of the first drive gear 8d is provided on the upper surface of the first drive gear 8d, and a width slightly wider than that of the second drive gear 8e is provided on the top surface of the second drive gear 8e. The second drive wheels 9b of the respective
It is possible to rotate together with d and 8e.

The bottom plate 5 includes a rotating gear 8b housed in the annular groove 6a, a guide gear 8c, and a first drive gear 8d provided with a first drive wheel 9a.
The second drive gear 8e provided with the second drive wheel 9b is fixed to the upper surface of the first substrate 6 so as not to hinder the rotation of the second drive gear 8e.
Further, on the outer peripheral portion of the bottom plate 5, the first drive wheel 9 has an angular range of about 180 ° from the right edge of the opening 2a to the left.
The first guide groove 5a for the inner door coincides with the turning radius of c, and on the outside of the first guide groove 5a in the angular range of about 180 ° from the left edge of the opening 2a to the right, Further, the second guide grooves 5b for the outer door are respectively formed so as to match the turning radius of the second drive wheels 9b, and the first drive wheels 9a are passed through the first guide grooves 5a and the second guide grooves 5b are passed through. The second drive wheels 9b are exposed respectively.

10 is an inner door with an arcuate cross section having the same radius of curvature as the first guide groove 5a, 11 is the same radius of curvature as the second guide groove 5b,
Further, it is an outer door having an arc-shaped cross section arranged on the front side of the inner door 10.

The inner door 10 is placed on the first drive wheel 9a through the first guide groove 5a, and along with the rotation of the first drive wheel 9a, the inner door 10 extends along the first guide groove 5a in the circumferential direction of the kitchen main body 1. You can move to. Vertical stripes 10a are provided on the front surface of the inner door 10 at equal intervals to a visible portion 11b of an outer door 11 described later.

The outer door 11 is placed on the second drive wheel 9b through the second guide groove 5b, and along with the rotation of the second drive wheel 9b, the outer door 11 extends along the second guide groove 5a in the circumferential direction of the kitchen main body 1. You can move to. The outer door 11 is formed in a vertical lattice shape by arranging a large number of lattices 11a having a triangular cross section at predetermined intervals and vertically. That is, the outer door 11 has a large number of visible portions 11b along the moving direction of which the surface of the inner door 10 can be visually recognized due to the gaps between the lattices 11a.

Reference numeral 12 is a stopper provided on the back side of the first drive gear 8d, and the stopper 12 is in contact with the right edge of the opening 2a when the door is closed.

Reference numeral 13a denotes a first limit switch provided on the inner left side of the opening 2a for detecting completion of door opening, and 13b denotes a second limit switch provided on the inner right side of the opening 2a for detecting completion of door closing. Is also pressed by the stopper 12.

Reference numeral 14 is a third limit switch for illumination provided at the same position as the second limit switch 13b, and its operating button is pressed by the stopper 12 like the first and second limit switches 13a and 13b.

Reference numeral 15 is a main switch for opening and closing the door provided on the upper surface of the second substrate 7. The main switch 15 is a push button switch for switching two positions having six contacts.

Next, referring to FIG. 6, an electric circuit for opening and closing the door will be described.

In the figure, 8a is a motor of the drive mechanism 8, 12 is a stopper, 13a is a first limit switch for detecting completion of door opening, and 1a.
3b is a second limit switch for detecting completion of door closing, 15 is a main switch, and 16 is a DC power supply.

The main switch 15 can selectively connect two contacts provided at the center of the drawing and contacts provided above and below the contacts.

The minus terminal of the motor 8a is connected to the contact on the left side of the center of the main switch 15 in the drawing, and the plus terminal of the motor 8a is connected to the contact on the right side of the center of the main switch 15 in the drawing.

The bottom left contact of the main switch 15 in the drawing is connected to the NC (normally closed) contact of the first limit switch 13a, and the bottom right contact of the main switch 15 in the drawing is connected to the positive terminal of the DC power supply 16. ing. The output terminal of the first limit switch 13a is connected to the negative terminal of the DC power supply 16.

Further, the contact on the uppermost left side of the main switch 15 in the drawing is the NC contact of the second limit switch 13b.
The contacts on the uppermost right side of the drawing in FIG. 5 are connected to the negative terminals of the DC power supply 16, respectively. The output terminal of the second limit switch 13b is connected to the positive terminal of the DC power supply 16.

That is, when the main switch 15 is in the solid line position in the figure, a closed circuit is formed by the motor 8a, the first limit switch 13a, and the DC power supply 16, and a current flows in the motor 8a in the forward direction to rotate the motor 8a in the forward direction. . The forward rotation of the motor 8a is stopped when the stopper 12 presses the operation button of the first limit switch 13a to open the NC contact. Further, when the main switch 16 is at the position indicated by the broken line in the figure, a closed circuit is formed by the motor 8a, the second limit switch 13b and the DC power supply 16, and a current flows in the motor 8a in the opposite direction, and the motor 8a rotates in the reverse direction. . In the reverse rotation of the motor 8a, the stopper 12 presses the operation button of the second limit switch 13b and the NC
It stops when the contact opens.

Next, an electric circuit related to the illumination will be described with reference to FIG.

In the figure, 12 is a stopper, 14 is a third limit switch, 16 is a DC power supply, and 17 is a light bulb for illumination arranged in the body portion 2 of the kitchen body 1.

The output terminal of the third limit switch 14 is the negative terminal of the DC power supply 16, and the NC terminal is the DC power supply with the light bulb 17 interposed.
It is connected to each of the 16 positive terminals.

That is, electricity is continuously applied to the light bulb 17 when the pressing of the operation button of the third limit switch 14 is released, that is, when the door is open.

 The door opening / closing operation of this embodiment will be described below.

When opening the door, both the inner door 10 and outer door 11
In the state of FIG. 1 covering 2a, set the main switch 15 to the 6th position.
Switch to the solid line position in the figure. As a result, the motor 8a rotates in the forward direction, the rotating gear 8b rotates in the same direction, the first drive gear 8d and the first drive wheel 9a rotate clockwise in FIG. 4, and the second drive gear 8e rotates. And the second drive wheel 9b rotates counterclockwise. Then, the first drive wheel 9a and the second drive wheel
The inner door (10) and the outer door (11) move in a direction of separating from each other in conjunction with the rotation of the 9b. Simultaneously with the start of this movement, the third limit switch
The pressing of the operation button 14 is released and the electric bulb 17 is energized to illuminate the inside of the body 2.

When the door is opened, the vertical stripes 10a of the inner door 10 are visually observed through the visible portion 11b of the outer door 11 according to the movement of the inner door 10 and the outer door 11.
Changes continuously, that is, the striped portion and the other portion are alternately seen and hidden.

The first limit switch 13 when the opening of both doors is completed
The operation button of a is pressed by the stopper 12 and the motor 8
The rotation of a stops and the movement of both doors stops (see FIG. 8).

When closing the door, the main switch 15 is switched to the position shown by the broken line in FIG. 6 in the state of FIG. 8 in which both the inner door 10 and the outer door 11 are open. As a result, the motor 8a rotates in the reverse direction, the rotating gear 8b rotates in the same direction, and conversely to the above, the first drive gear 8d and the first drive wheel 9a in the counterclockwise direction in FIG. Further, the second drive gear 8e and the second drive wheel 9b respectively rotate clockwise. Then, the inner door 10 and the outer door 11 move in a direction approaching each other in conjunction with the rotation of the first drive wheel 9a and the second drive wheel 9b, respectively.

Even when the door is closed, the vertical stripes 10a of the inner door 10 visually observed through the visible portion 11b of the outer door 11 continuously change according to the movement of the inner door 10 and the outer door 11 as in the case of opening the door.

When the closing of both doors is completed, the second limit switch 13
The operation button of b is pressed by the stopper 12 and the motor 8
The rotation of a stops and the movement of both doors stops (see Fig. 1). At the same time, the operation button of the third limit switch 14 is pressed by the stopper 12, the electricity to the light bulb 17 is cut off, and the illumination is turned off.

As described above, according to the present embodiment, the motor 8a is rotated in the forward and reverse directions to rotate the first drive wheel 9a and the second drive wheel 9b in the opposite directions, and in conjunction with this rotation, the inner door 10 and Outer door 11
Since the opening 2a of the kitchen main body 1 can be opened or closed by separating or approaching the door, it is not necessary for the devoted person or the like to directly open and close the door, and the door can be easily opened and closed. .

Further, since the vertical stripes 10a of the inner door 10 visually observed through the visible portion 11b of the outer door 11 can be continuously changed according to the movement of the inner door 10 and the outer door 11 when the door is opened and closed, When opening and closing, a solemn atmosphere can be created, and the emotions of the votives can be raised and votive offerings can be performed effectively.

In the present embodiment, the inner door 10 is provided with vertical stripes 10a as a pattern so that the striped portion and the other portions can be seen alternately, but the pattern is not limited to the vertical striped characters, symbols, and pictures. , A pattern, etc., or two types of patterns as shown in FIG. 9 or more patterns can be seen alternately. Further, when a plurality of patterns are provided, if the colors of the patterns are made different, a further effect can be expected by adding a glitz when the door is opened and closed. Furthermore, the inner door 10 provided with the pattern may be formed of a non-translucent material such as wood, or may be formed of a translucent material such as glass. It is possible to clearly illuminate the picture by using the light of the electric bulb 17 arranged inside the kitchen main body 1.

In the present embodiment, the outer door 11 is provided with the vertical stripe-shaped visible portion 11b orthogonal to the moving direction, but the visible portion is formed at predetermined intervals along the moving direction of the outer door. However, it is not always necessary to make them orthogonal, and various patterns can be adopted for the inner door as long as they change depending on the positional relationship with the visible portion.

Further, the power supply 16 may be provided with a switch for turning on / off the power supply, and the switch may be cut off when not in use or when manually operating each door.

Furthermore, in this embodiment, a drive mechanism for opening and closing the door is used as the base 4.
However, the driving mechanism may be built in the canopy 3, and in this case, the doors may be installed in the first and second doors.
It is good to hang them down on the drive wheels. Also, the drive mechanism motor
8a may be replaced by another well-known rotary drive source, or a first drive unit composed of a first drive gear 8d and a first drive wheel 9a, and a second drive gear 8e and a second drive wheel 9b. The same effect can be exhibited even if the second drive portions are each formed in a linear shape and each door is linearly moved.

FIGS. 10 to 14 show another embodiment of the present invention. FIG. 10 is a front view of the kitchen with the door open, and FIG.
FIG. 12 is a sectional view taken along the line XI-XI of FIG. 12, FIG. 12 is a sectional view taken along the line XII-XII of FIG. 10, FIG. 13 is a sectional view taken along the line XIII-XIII of FIG. 12, and FIG. It is a figure.

In the figure, reference numeral 21 denotes a kitchen body, and the kitchen body 21 is composed of a cylindrical body portion 22 whose upper and lower ends are closed, and a base 23 fixed to the lower portion of the body portion 22.

The body portion 22 has a vertically long opening portion 22a in a part (front side) of its peripheral surface, and an altar 22b on which a Buddhist image, a sutra, a tile, etc. can be placed. In addition, a support rod 24 is erected upward in the center of the upper wall of the body portion 22, and a bearing for the inner door is provided on the upper surface of the upper wall with the same axis as the support rod 24.
25 is stuck. As the inner door bearing 25, a bearing in which balls 25a are annularly arranged side by side is used. Furthermore,
A motor 26 is arranged at a position deviated from the center of the upper wall of the body portion 22, and a drive gear 27 is attached to the rotation shaft thereof. Furthermore, a light bulb 28 for illuminating inside the kitchen main body 21 is arranged on the upper wall of the body portion 22. Furthermore, the body 22 and the base 23
A guide ring for guiding the rotation of the outer door described later
29 is installed. On the other hand, the base 23 is provided with a main switch 30 for opening and closing the door.

Reference numeral 31 denotes a cylindrical inner door having a cross-sectional diameter larger than that of the body portion 22 of the kitchen main body 21 and having a lower end opened. The inner door 31 has an opening 31a slightly larger than the opening 22a on one side thereof. And a pattern as shown in FIG. 5 or FIG. 9 is provided on the surface. Further, a driven gear 32 having a center hole is fixed to the center of the lower surface of the upper wall of the inner door 31, and the inner door 31 has a support rod 24 rotatably fitted in the center hole of the driven gear 32. In this state, the lower surface of the upper wall is placed on the balls 25a of the bearing 25 for the inner door, and the driven gear 32 is set to the drive gear 2
It meshes with 7. A first bevel gear 33 having a center hole is coaxially fixed to the driven gear 32 at the center of the upper surface of the upper wall of the inner door 31.

Reference numeral 41 denotes a gear mechanism for converting the rotation direction, which is fixed to a support rod 24 protruding upward from the first bevel gear 33 of the inner door 31. The gear mechanism 41 includes a mounting portion 42 fitted and inserted into the support rod 24.
And a transmission bevel gear 43 rotatably arranged at 120 ° intervals in the circumferential direction on the peripheral surface of the mounting portion 42. This gear mechanism 41 is a screw that is inserted into each of the transmission bevel gears 43.
By tightening the support rod 24 by 43a, the support rod 24
The bevel gear 43 for transmission is attached to the first
It meshes with the bevel gear 33. A total of three support pieces 44 are radially projected from the mounting portion 42 of the gear mechanism 41, and the outer door bearing 45 is fixed on the support piece 44 coaxially with the support rod 24. There is. As the outer door bearing 45, similarly to the inner door bearing 25, a ball 45a arranged in parallel in an annular shape is used.

In this embodiment, the motor 26, the driving gear 27, and the driven gear described above are used.
32, a first bevel gear 33, a gear mechanism 41 and a second bevel gear 52 described later.
A drive mechanism for opening and closing the door is configured by the above.

Reference numeral 51 denotes an outer door having a cross-sectional diameter larger than that of the inner door 31 and having a lower end opened, and the outer door 51 has an opening 51a slightly larger than the opening 31a in a part of its peripheral surface. This outer door 51
Has a recess 51b for accommodating the gear mechanism 41 on the lower surface of the upper wall, and has a hole 51c for receiving the upper end of the support rod 24 at the center thereof. Further, a second bevel gear 52 having a center hole is fixed to the center of the recess 51b of the outer door 51, and the outer door 51 is capable of rotating the support rod 24 in the center hole of the second bevel gear 52. The upper wall lower surface of the second bevel gear 52 is meshed with the transmission bevel gear 43 while the lower wall of the upper wall is placed on the ball 45a of the outer door bearing 45 in a state of being fitted and inserted. Further, at least the peripheral surface of the outer door 51 is formed of a transparent material such as transparent plastic,
A band-shaped sheet 51e which cannot be seen through is attached at predetermined intervals in the circumferential direction of the peripheral surface. That is, the outer door 51 has a transparent portion left between the strip-shaped sheets 51e, and the transparent portion has a large number of visible portions 51d along which the surface of the inner door 31 can be visually recognized along the circumferential direction.

The electric circuit for opening and closing the door and the electric circuit for lighting in this embodiment are the same as those shown in FIGS. 6 and 7.

The door opening / closing operation of this embodiment will be described below.
The electrical control for opening and closing the door is the same as that of the above-described embodiment, and therefore the description of this point is omitted.

To open the door from the state shown in FIG. 14, the main switch 30 is switched to the door open position. This allows the motor 26
The driven gear 32 is driven by the drive gear 27 to rotate the inner door 31. Further, the first bevel gear 33 rotates in synchronization with the inner door 31, and this rotation causes the transmission bevel gear 43 of the gear mechanism 41 to rotate.
Is transmitted to the second bevel gear 52 via, and the outer door 51 rotates in the opposite direction to the inner door 31. Then, when the opening 22a of the kitchen main body 21 and the openings 31a, 51a of the both doors 31, 51 coincide with each other, the both doors 31, 5
The rotation of 1 stops.

When the door is opened, the pattern of the inner door 31 visually observed through the visible portion 51d of the outer door 51 continuously changes according to the movement of the inner door 31 and the outer door 51.

When closing the door from the state shown in FIG. 10, the in-switch 30 is switched to the door closing position. As a result, the motor 26 rotates in the opposite direction to the above, and the drive gear 27 drives the driven gear.
32 is driven to rotate the inner door 31 in the opposite direction to the above. Further, the first bevel gear 33 rotates in synchronization with the inner door 31, and the rotation is transmitted through the transmission bevel gear 43 of the gear mechanism 41 to the second bevel gear 52.
And the outer door 51 rotates in the opposite direction to the inner door 31. Then, when the opening 22a of the kitchen main body 21 is completely closed by the doors 31, 51, the rotation of the doors 31, 51 is stopped.

Even when the door is closed, the pattern of the inner door 10 visually observed through the visible portion 51d of the outer door 51 continuously changes in accordance with the movement of the inner door 31 and the outer door 51 as in the case of opening the door.

As described above, also in this embodiment, by rotating the first bevel gear 33 and the second bevel gear 52 in the opposite directions, the inner door 31 and the outer door 51 are separated or approached in conjunction with this rotation. Since the opening 22a of the kitchen main body 21 can be opened or closed, the same effect as that of the above-described embodiment can be exhibited.

Although the driven gear 32 is driven by the motor 26 in this embodiment, the first and second bevel gears 33, 52 are shown.
Alternatively, the same movement can be obtained by driving one of the transmission bevel gears 43.

(Effect of device) As described in detail above, according to the kitchen device of the present invention, the inner door and the outer door can be moved in opposite directions according to the operation of the rotary drive source to open and close the opening of the kitchen device. It is not necessary for votives to directly open and close the door with their own hands, and the annoyance associated with opening and closing the door can be eliminated.

Further, when the door is opened and closed, the appearance of the surface pattern of the inner door from the outside can be changed according to the positional relationship with the visible part of the outer door, so that a magnificent atmosphere can be created by opening and closing the door. , There is an advantage that votives, etc. can be effectively raised by raising the emotions of votives.

[Brief description of drawings]

1 to 8 show an embodiment of the present invention. FIG. 1 is a front view of a kitchen with a door closed, and FIG. 2 is II of FIG.
-II line sectional view, FIG. 3 is a III-III line sectional view of FIG. 2, 4
Fig. 4 is a sectional view taken along the line IV-IV in Fig. 3, Fig. 5 is a perspective view of the inner door and the outer door, and Fig. 6 is an electric circuit diagram relating to opening and closing the kitchen door, and Fig. 7
FIG. 8 is an electric circuit diagram relating to lighting of the kitchen, FIG. 8 is a front view of the kitchen with the door open, and FIG. 9 is a front view of an inner door showing another embodiment of the design. FIGS. 10 to 14 show another embodiment of the present invention. FIG. 10 is a front view of the kitchen with the door open, FIG. 11 is a sectional view taken along line XI-XI of FIG. 10, and FIG. The figure is a cross-sectional view taken along the line XII-XII in FIG. 10, FIG. 13 is a cross-sectional view taken along the line XIII-XIII in FIG. 12, and FIG. 14 is a front view of the kitchen device in the door closed state. In the figure, 1 ... Kitchen main body, 2a ... Opening part, 2b ... Altar, 8a
...... Motor, 8d ...... First drive gear, 8e ...... Second drive gear, 9a ...... First drive wheel, 9b ...... Second drive wheel, 10 ...... Inner door, 10a ...... Vertical stripes, 11 ...... Outer door, 11b …… Visible part, 21 ……
Kitchen main body, 22a …… Opening part, 22b …… Altar, 26 …… Motor, 31 …… Inner door, 33 …… First bevel gear, 41 …… Gear mechanism,
51 …… outer door, 51d …… visible part, 52 …… second bevel gear.

Claims (1)

[Scope of utility model registration request] 1. A kitchen main body having an altar inside and an opening on the front side, and a first main body which moves in opposite directions in response to the operation of a rotary drive source.
A drive mechanism having a drive unit and a second drive unit; an inner door that opens and closes the opening of the kitchen main body in conjunction with the first drive unit; and an inner door outer position in conjunction with the second drive unit. An outer door that opens and closes an opening of the kitchen main body, and a plurality of visible portions that allow the surface of the inner door to be seen from the outside when both doors are overlapped are provided on the outer door along the movement direction thereof. The kitchen is provided with a pattern on the surface of the inner door whose appearance changes from the outside depending on the positional relationship with the visible portion of the outer door when the door is opened and closed.