JP3765576B2 - cabinet - Google Patents

Description

  The present invention relates to a cabinet, and more particularly to a cabinet capable of opening and closing a door from both left and right directions.

  Conventionally, as a technology that can open and close this kind of door from both the left and right directions, hinges consisting of a combination of a pivot part and a bearing part are separately provided on both the left and right sides between the storage body and the door. There is known a storage with a left and right selectively openable door that can be selected to be left open or right open (see, for example, Patent Document 1). The bearing portion is provided with a notch portion formed of an elastic synthetic resin material or the like as a space for guiding the pivot of the pivot portion entering and exiting the pivot support space of the bearing portion. Further, as another configuration of the space for guiding the pivot, an entrance / exit guidance space may be provided. In the process of extending from the pivot space to the outside, the entrance / exit guidance space reaches the external space after drawing a substantially right-angled curve and changing the direction in the door opening / closing direction.

In the storage with the left and right selective open type door, the pivot is fitted into the notch or the pivot support space at the back of the entrance / exit guidance space by pushing the door into the storage body. Then, by pulling the left and right sides of the door forward, the pivot is separated from the pivot space of the hinge on one side while pivoting the door so that it can be opened and closed with the hinge in the fitted state on the other side.
Japanese Patent Laid-Open No. 2002-147105

  In the storage with a left and right selective open door described in Patent Document 1 described above, when a notch portion is provided as a space for guiding the pivot, the pivot is pushed into the pivot space to remove the notch. Open and fit the pivot in the pivot space behind it. And the fitting state is hold | maintained by closing the notch part opened after the pivot fits into the pivot space. However, the elastic material is used for the notch, so the force to maintain the fitting state is weak, and the fitting state is maintained when force such as up and down acts on the other end of the door that can be opened and closed freely There was a problem that the door was wobbled or could easily fall.

  In addition, when a doorway guide space is provided as a space for guiding the pivot, in order to change the left or right opening of the door, it is necessary to move the door slightly from side to side. In other words, the pivot space is in a position substantially orthogonal to the door opening / closing direction on the back side of the entrance / exit guidance space, and thus such a moving operation is necessary to ensure that either the left or right pivot is fitted. Indispensable. Therefore, when a plurality of doors are used to open and close a storage having a plurality of storage areas, there is a problem that it is necessary to secure a space for the doors to move left and right.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a cabinet capable of opening and closing a door from both left and right directions with few operations while ensuring safety in use and space saving.

To achieve the above object, the invention according to claim 1 is directed to a cabinet body having an opening on one surface of a substantially rectangular box, a substantially rectangular plate-like door that opens and closes the opening, and an opening / closing operation of the door. A hinge mechanism that enables the hinge mechanism, and the hinge mechanism includes a shaft portion disposed at both left and right edge portions of the opening or the left and right edge portions of the door body, and a coaxial portion that is not disposed. It consists of bearing parts arranged at positions opposite to the coaxial part at the left and right edges of the opening or the left and right edges of the door body, and the door body is rotatably supported by an axis perpendicular to the opening. At the same time, the shafts or bearings arranged on the upper left and right edges of the door body are connected at the left and right ends, and the connected shafts or bearings are arranged on the upper left and right edges of the opening. Supports the installed bearing part or shaft part so as to be able to advance and retract alternately. One switching member and a shaft or bearing that is rotatably supported by a shaft perpendicular to the opening and that is disposed on the lower left and right edges of the door body at the left and right ends; and A second switching member that supports the connected shaft portion or bearing portion so as to be able to advance and retract alternately with respect to the bearing portion or shaft portion disposed on the lower left and right edges of the opening; and the first switching member; A hinge mechanism switching unit having a switching intermediate member interposed between the second switching member and changing the operation state of the other switching member in conjunction with a change in the operation state of the first switching member or the second switching member. By operation, the coaxial portion or the coaxial receiving portion disposed at the right edge of the door body is advanced to the coaxial receiving portion or the coaxial portion disposed at the right edge of the opening to be in a bearing state. And a coaxial part disposed on the left edge of the door body or The first bearing state in which the bearing portion is released from the coaxial receiving portion disposed at the left edge of the opening or the coaxial portion to release the bearing state, and the coaxial disposed at the left edge of the door body. The coaxial portion disposed on the left edge of the opening or the coaxial receiving portion is advanced to the coaxial portion to be in a bearing state and is disposed on the right edge of the door body. Alternatively, the coaxial receiving portion is switched to the coaxial receiving portion disposed at the right edge of the opening or the second bearing state in which the bearing state is released by retreating from the coaxial portion, and the front side of the door body in the same door body. by being arranged in a state of being urged in a direction from the side to the rear side, moves to the back side of the door body taken to the door body is opened from the front side, clockwise direction or counterclockwise The first switching member or the second switching member that has been rotated in the clockwise direction State closer to member, the door body while in the open state more than a certain angle that is rotated in the clockwise or counter-clockwise direction by mating with the same first switching member or the second switching member Is provided with a bearing state holding member for holding the operation state switching means that is installed at a predetermined position of the hinge mechanism switching unit and switches the operation state of the hinge mechanism switching unit.

  In the invention according to claim 1 configured as described above, by setting either one of the hinge mechanisms disposed on the left and right edges of the door body and the opening as a bearing state as a rotation support shaft, The door can be opened and closed from both the left and right directions.

Here, in the process of switching between the first bearing state and the second bearing state, the hinge mechanism switching unit has a coaxial portion or a coaxial receiving portion disposed on both left and right edges of the door body with the same opening. A configuration may be adopted in which both the hinge mechanisms disposed on the left and right edges can be placed in a quasi-bearing state by advancing the same amount with respect to the coaxial receiving parts or shafts disposed on the left and right edges .

In the above configuration , not only one of the hinge mechanisms arranged on the left and right edges of the door body and the opening is in a bearing state, but as an intermediate state, both the left and right hinge mechanisms are in a quasi-bearing state. Therefore, when the door body is in the closed state, the door body can be stably fixed to the edge of the opening.

According to claim 1, the hinge mechanism switching portion is rotatably supported by an axis perpendicular to the opening, and the shaft portion or the bearing portion disposed on the upper left and right edges of the door body is moved to the left and right. The first shaft portion or the bearing portion connected at the end portion is supported so as to be capable of advancing and retreating alternately with respect to the bearing portion or the shaft portion disposed on the upper left and right edges of the opening. One switching member and a shaft perpendicular to the opening are rotatably supported, and the shaft portion or the bearing portion disposed on the lower left and right edges of the door body is connected at the left and right ends, And, the second switching member that supports the shaft part or the bearing part connected to the bearing part or the shaft part arranged alternately on the lower left and right edges of the opening so as to be able to advance and retract alternately. Between the first switching member and the second switching member The distance between the predetermined position of the first switching member and the predetermined position of the second switching member is kept substantially constant, and the other switching is performed in conjunction with a change in the operating state of the first switching member or the second switching member. A switching intermediate member that changes the operation state of the member is provided.

In the invention according to claim 1 configured as described above, since the first switching member and the second switching member are rotatably supported by shafts perpendicular to the opening, respectively, the shaft portions connected at the left and right end portions Alternatively, the first switching member supports the bearing portion such that the first switching member can be alternately advanced and retracted with respect to the bearing portion or the shaft portion disposed on the upper left and right edges of the opening, and the second switching member It is supported so as to be capable of advancing and retreating alternately with respect to the bearings or the shafts disposed on the lower left and right edges.

  Further, since the switching intermediate member is interposed between the first switching member and the second switching member, the first switching member and the second switching member can be interlocked to change the operation state, and as a result Thus, the entire hinge mechanism switching unit performs a predetermined cooperative operation, and switching to the first bearing state or the second bearing state is performed.

Here, various modes in which the switching intermediate member is interposed between the first switching member and the second switching member can be considered, but examples include the following modes.
Upper SL switch intermediate member is configured to connect the left end of the right end portion and the second switching member of the first switching member to connect the right end of the left end portion and the second switching member of the first switching member, When the first switching member or the second switching member is rotated to change the position, the position of the other end in the diagonal direction connected in phase with the change in the position is changed, and the phase connection One of the shafts or the bearings connected to the opposite ends in the diagonal direction is moved into the opposite bearing or the direction of the shafts to make a bearing state. It is good also as a structure which makes the said shaft part or the said bearing part retreat from the said bearing part or the said shaft part direction which opposes, and cancels | releases a bearing state .

In the above configuration , the both ends of the first switching member and the second switching member are connected to each other diagonally, and one of the hinge mechanisms existing in the diagonal direction is in a bearing state, and the other bearing state is released. It is possible to switch to the first bearing state or the second bearing state.

The aspect in which the switching intermediate member is interposed between the first switching member and the second switching member may be as follows.
The invention according to claim 2 is the cabinet according to claim 1, wherein the switching intermediate member connects the right end of the first switching member and the right end of the second switching member, and the first switching When the left end portion of the member is connected to the left end portion of the second switching member, and the first switching member or the second switching member rotates and changes its position, the phase connection is made in conjunction with the change of the position. The position of the other end in the vertical direction is changed, and both the shafts or the bearings connected to the opposite ends in the vertical direction are advanced in the direction of the corresponding bearings or the shafts. It is configured to be in a bearing state or to be withdrawn to release the bearing state.

In the invention according to claim 2 configured as described above, both ends of the first switching member and the second switching member are connected to each other in the vertical direction, and among the hinge mechanisms that exist in the vertical direction of the left and right edges, By switching one of the left and right upper and lower hinge mechanisms to the bearing state and releasing the bearing state of the other upper and lower hinge mechanism, switching to the first bearing state or the second bearing state is enabled.

Here, the upper Symbol operation state switching means, said while being installed at a predetermined position of the first switching member or the second switching member, clockwise the first switching member or the second switching member by a predetermined switching operation It is good also as a structure rotated in a direction or a counterclockwise direction .

In the above configuration , the switching operation of the operation state switching means is the initial operation, and the first switching member or the second switching member rotates, and as a result, the entire hinge mechanism switching unit performs a predetermined cooperative operation. .

Further, in the cabinet, a bearing state holding mechanism that holds a bearing state within a predetermined rotation range of the door body when one of the shaft portion or the bearing portion is advanced with respect to the other to become a bearing state. It is good also as a structure provided . As an example, such a bearing state holding mechanism can be constituted by the first switching member or the second switching member and the bearing state holding member.

In the above configuration , since the bearing state is maintained within a predetermined rotation range of the door body, either the first bearing state or the second bearing state is switched, and either of the left and right ends of the door body is freely set. When the door body is opened and closed as an end, the bearing state of the hinge mechanism serving as the rotation support shaft is not released. Therefore, the danger that the open door will fall is eliminated.
According to a third aspect of the present invention, the lower edge of the cabinet body is formed with a tapered portion that tapers in the direction of opening and closing the door body as it approaches the tip. Yes.

As described above, according to the first aspect of the present invention, a cabinet capable of opening and closing the door body from both the left and right directions can be provided. Furthermore, by using the hinge mechanism switching unit including the first switching member, the second switching member, and the switching intermediate member, it is possible to efficiently switch to the first bearing state or the second bearing state. Furthermore, the bearing state can be maintained within a predetermined rotation range of the door body.
Moreover , when a door body is a closed state, a door body can be fixed to the edge of the opening of a cabinet main body in the stable state.
Furthermore, according to Claim 2 etc., the suitable example of the switching intermediate member used in order to switch to a 1st bearing state or the said 2nd bearing state can be shown.
Furthermore, according to the invention concerning Claim 3, a door body can be closed in the regular position in a cabinet main body.

Further, by rotating the first switching member or the second switching member with operating state switching means in a clockwise or counterclockwise direction, is possible to easily perform a predetermined work together across the hinge mechanism switching unit it can.

The embodiment of the present invention will be described in the following order.
(1) First embodiment (2) Second embodiment (3) Third embodiment (4) Summary

(1) 1st embodiment FIG. 1: has shown the cabinet 10 with a mirror using the cabinet concerning this invention from the front.
In this figure, the mirrored cabinet 10 has a structure divided into a central cabinet 20, a left cabinet 30, and a right cabinet 40. The front of each cabinet is a central door 50, a left door 60, and the like. The right door 70 covers. A central mirror 80, a left mirror 90, and a right mirror 100 are attached to the front surfaces of the central door 50, the left door 60, and the right door 70, respectively. Each of the central door 50, the left door 60, and the right door 70 has a structure that can be opened and closed from both the left and right directions.
The cabinet 10 with a mirror can be used as a mirror cabinet of a vanity table, for example. That is, since the central door 50, the left door 60, and the right door 70 can be opened and closed from both the left and right directions, the respective doors are opened and closed from the direction according to the convenience of the user, and the central cabinet inside the mirrored cabinet 10 is provided. 20, the left cabinet 30, and the right cabinet 40 can be loaded and unloaded. If the central door 50, the left door 60, and the right door 70 are closed, the central mirror 80, the left mirror 90, and the right mirror 100 face the front direction. Can be used as Further, if the right end of the right mirror 100 is opened and rotated toward the center mirror 80 by a desired angle, and the left end of the left mirror 90 is opened and rotated toward the center mirror 80 by a desired angle, The mirror 80, the left mirror 90, and the right mirror 100 can be used as a three-way mirror.
In addition, the usage mode of the cabinet concerning this invention is not necessarily restricted to the case where a mirror is attached to the front surface, or a plurality of cabinets are connected and used.

FIG. 2 is a front view of the right door 70 and the right cabinet 40 in the closed state.
In the drawing, the right door 70 is indicated by a two-dot chain line in order to show the hinge mechanism switching unit 71 and the like installed on the back surface of the right door 70. Further, the right mirror 100 attached to the front surface of the right door 70 is omitted.
As shown in the figure, a connecting arm 72 is disposed above the back surface of the right door 70, and is rotatably supported by a connecting shaft 72c perpendicular to the right door 70 at the central portion thereof. In addition, shaft portions 72 a and 72 b are extended vertically upward at both left and right ends of the connecting arm 72. On the other hand, a connecting arm 73 is disposed below the back surface of the right door 70, and is rotatably supported by a connecting shaft 73c perpendicular to the right door 70 at the center. Further, shaft portions 73 a and 73 b are extended vertically downward at both left and right ends of the connecting arm 73. The shaft portions 72a, 72b, 73a, 73b have a substantially cylindrical shape so that the rotation of the right door 70 becomes smooth.

  Since both the connecting arms 72 and 73 are rotatably supported at the central portion, when rotating in a fixed direction around the connecting shafts 72c and 73c, the shaft portions 72a and 73a and the shaft portion 72b extending to the left and right ends are provided. , 73b move substantially vertically upward, and the other moves substantially vertically downward. The shaft portion is not limited to a case where the shaft portion is extended from the connection arm and is formed integrally with the connection arm, but may be formed as a separate part and attached to the left and right ends of the connection arm.

  The right end of the connecting arm 72 and the left end of the connecting arm 73 are connected by a wire 74a. On the other hand, the left end of the connecting arm 72 and the right end of the connecting arm 73 are connected by a wire 74b. Here, when one connecting arm rotates and changes its position, the wires 74a and 74b play a role of changing the position by rotating the other connecting arm in conjunction with the change of the position. Therefore, the wires 74a and 74b are preferably made of a material that can keep the distance between one end of the connecting arm 72 and one end of the connecting arm 73 connected to each other without expanding or contracting or breaking. The hinge mechanism switching unit 71 is composed of connecting arms 72 and 73 and wires 74a and 74b. The connecting arms 72 and 73 correspond to a first switching member and a second switching member according to claim 3, and the wires 74a and 74b correspond to a switching intermediate member according to claim 3.

  Lever mechanisms 75a and 75b are installed near the left and right ends of the connecting arm 73, respectively. The lever mechanism 75a can push up the left end of the connecting arm 73 and rotate it in the clockwise direction. On the other hand, the lever mechanism 75b can push up the right end of the connecting arm 73 and rotate it counterclockwise. The lever mechanisms 75a and 75b correspond to the operation state switching means according to claim 1.

In the right cabinet edge 41 of the right cabinet 40, bearing holes 42 a and 42 b are provided at positions facing the shaft portions 72 a and 72 b extending from the connecting arm 72 and the shaft portions 73 a and 73 b extending from the connecting arm 73. 42b, 43a, 43b are respectively formed. The bearing hole guides the advancing shaft portion into the hole so as to be in a bearing state, and its opening is substantially circular. The diameter of the bearing hole is formed to be slightly larger than the diameter of the shaft portion. Here, a shaft portion 72b extending to the right end of the connecting arm 72, a bearing hole 42b facing the shaft portion 72b, a shaft portion 73b extending to the right end of the connecting arm 73, and a bearing hole 43b facing the shaft portion 72b are connected to the right hinge. The shaft 110a extending to the left end of the connecting arm 72 and the bearing hole 42a opposite to the shaft 110a extending to the left end of the connecting arm 73 and the shaft hole 73a extending to the left end of the connecting arm 73 and the bearing hole 43a corresponding to the shaft 110a. The mechanism 120 is used.
In the present embodiment, the shaft portions 72a and 72b and the shaft portions 73a and 73b are provided on the right door 70 side, and the bearing holes 42a and 42b and the bearing holes 43a and 43b are provided on the right cabinet 40 side. Even if these are installed in reverse, the hinge mechanisms are provided on both the left and right sides.

  Since this figure shows the case where the right door 70 is in a closed state, the connecting arms 72 and 73 are kept substantially horizontal, and each shaft portion has advanced to the same extent relative to the opposite bearing hole. That is, since both the right hinge mechanism 110 and the left hinge mechanism 120 are held in the quasi-bearing state, the right door 70 is fixed in a stable state at the right cabinet edge 41.

  A tapered portion 44 is formed at the lower edge portion of the right cabinet edge portion 41. The tapered portion 44 is attached in the direction in which the right door 70 opens and closes, and has a shape that gradually tapers as it approaches the tip. When the right door 70 is in the closed state, the taper portion 44 abuts the upper surface of the right door 70 with the bottom surface of the lower end of the right door 70, and the right door 70 gradually closes as the right door 70 is gradually closed. Push up the bottom position. And it plays the role which guides the right door 70 so that the right door 70 will be in a closed state in the regular position in the right cabinet 40. That is, even when the lower end position of the right door 70 that has been opened due to the rattling or the like of the hinge mechanism is lowered, the right door 70 is closed at a regular position in the right cabinet 40 by providing the tapered portion 44. be able to.

FIG. 3 is a front view of the right door 70 and the right cabinet 40 when the right hinge mechanism 110 is in a bearing state.
Also in the figure, the right door 70 is indicated by a two-dot chain line in order to show the hinge mechanism switching unit 71 and the like installed on the back surface of the right door 70 as in FIG. Further, the right mirror 100 attached to the front surface of the right door 70 is omitted.
In order to bring the right hinge mechanism 110 into a bearing state in the present embodiment, first, the lever mechanism 75a installed near the left end of the connecting arm 73 is pushed up, and the connecting arm 73 is rotated in the clockwise direction. Then, the rotation of the connecting arm 73 causes the shaft portion 73a extending from the left end of the connecting arm 73 to move substantially vertically upward to release the bearing state. In conjunction with the rotation of the connecting arm 73, the wire 74a connecting the right end of the connecting arm 72 and the left end of the connecting arm 73 moves upward, and pushes up the right end of the connecting arm 72. When the connecting arm 72 is pushed up by the wire 74a, the shaft portion 72b extending from the right end of the connecting arm 72 moves substantially vertically upward and advances into the opposite bearing hole 42b to be in a bearing state. Further, the connecting arm 72 pushed up by the wire 74a rotates counterclockwise about the connecting shaft 72c.

  On the other hand, when the connecting arm 73 rotates in the clockwise direction, the shaft portion 73b extending from the right end of the connecting arm 73 moves substantially vertically downward, advances into the opposite bearing hole 43b, and enters the bearing state. Become. Further, in conjunction with the rotation operation of the connecting arm 73, the wire 74b connecting the left end of the connecting arm 72 and the right end of the connecting arm 73 is moved downward. As the wire 74b moves downward, the left end of the connecting arm 72 also moves downward. As a result, the shaft portion 72a extending from the left end of the connecting arm 72 moves substantially vertically downward, exits from the opposing bearing hole 42a, and releases the bearing state.

  As described above, the hinge mechanism switching unit 71 including the connection arms 72 and 73 and the wires 74a and 74b performs the above-described cooperative operation by the initial movement operation of pushing up the lever mechanism 75a installed near the left end of the connection arm 73. Then, the right hinge mechanism 110 is in a bearing state, and the left hinge mechanism 120 is released from the bearing state. Therefore, the right hinge mechanism 110 serves as a rotation support shaft, and the user can freely open and close the left end of the right door 70. In essence, the user can freely open and close the left end of the right door 70 by using the right hinge mechanism 110 as a rotation support shaft simply by pushing up the lever mechanism 75a. In order to open the right end of the right door 70, the lever mechanism 75b installed near the right end of the connecting arm 73 may be pushed up.

FIG. 4 shows a state where the right end hinge mechanism 110 of the right door 70 is in a bearing state and the left end of the right door 70 is opened.
In the figure, the hinge mechanism switching unit 71, the right hinge mechanism 110, and the left hinge mechanism 120 disposed on the back surface of the right door 70 are further covered with a plate material or the like from the back surface side, thereby opening and closing the right door 70. The mechanism necessary for this is accommodated in the right door 70.

FIG. 5 shows a bearing state holding mechanism formed in the opposite shaft portion and the bearing hole.
In the drawing, the configuration of the bearing state holding mechanism 130 is illustrated by taking a shaft portion 73a extending from the left end of the connecting arm 73 and a bearing hole 43a formed in the right cabinet edge portion 41 as opposed to the shaft portion 73a as an example. Is shown.
On the side surface near the tip of the shaft portion 73a, a protruding portion 131 supported in a direction substantially perpendicular to the shaft portion 73a is formed. And the said protrusion part 131 advances into the bearing hole 43a which opposes with the axial part 73a.

  On the other hand, the right cabinet edge 41 is formed with a bearing hole 43a for guiding the shaft portion 73a and the protruding portion 131 into a bearing state. The opening 132 of the bearing hole 43a has a shape in which a substantially rectangular opening extends from one end of a substantially circular opening circumference in order to guide the shaft portion 73a and the protruding portion 131. The diameter of the substantially circular opening portion is slightly larger than the diameter of the shaft portion 73a, and the length and width of the substantially rectangular opening portion are slightly longer than the length and width of the protruding portion 131, respectively. A first bearing space 133 that is dug down while maintaining the shape of the opening 132 is formed substantially vertically downward from the opening 132.

  Next, the bearing hole 43a which is dug down to a certain depth to form the first bearing space 133 expands the range in which the bearing hole 43a is formed in a substantially horizontal direction. The range expanded in the substantially horizontal direction is a substantially circular shape concentric with the substantially circular opening portion, and the diameter is twice the diameter of the substantially circular opening portion and the substantially rectangular portion. The sum of Then, the second bearing space 134 is formed by further digging in a substantially vertical downward direction while maintaining the range expanded in the substantially horizontal direction. That is, the bearing portion 43a in the case of forming the bearing state holding mechanism 130 together with the shaft portion 73a includes the first bearing space 133 and the second bearing space 134.

6 is a cross-sectional view taken along the line AA and the line BB in FIG. 5 when the shaft portion 73a and the bearing hole 43a forming the bearing state holding mechanism 130 are in a bearing state. The cross-sectional view taken along the line BB is a cross-sectional view when the shaft portion 73a is rotated by a predetermined angle inside the bearing hole 43a.
In the cross-sectional view taken along the line AA, since the length of the cross section of the opening 132 is the longest, the entire shaft portion 73a including the protruding portion 131 can be advanced into the bearing hole 43a. Since the first bearing space 133 reaches the boundary with the second bearing space 134 while maintaining the length of this cross section, the shaft portion 73a and the protruding portion 131 can advance into the second bearing space 134. it can. In other words, the shaft portion 73a and the protruding portion 131 can advance to the second bearing space 134 only when the cross-sectional direction along the line AA matches the direction in which the protruding portion 131 is supported.

  In the sectional view taken along line BB, the length of the cross section of the first bearing space 133 is the same as the diameter of the substantially circular opening. Therefore, the protrusion 131 is confined in the second bearing space 134. Even if the shaft portion 73a tries to retreat from the bearing hole 43a, the retreat operation is prohibited because the upper side surface of the protruding portion 131 and the inner upper surface of the second bearing space 134 come into contact with each other. That is, when the shaft portion 73a that has advanced into the bearing hole 43a with the supported direction of the protruding portion 131 aligned with the AA line cross-sectional direction is rotated within the bearing hole 43a, the cross-sectional direction again becomes the AA line cross-sectional direction. Until the supported direction of the protruding portion 131 coincides, the retraction operation of the shaft portion 73a is prohibited, and the bearing state is maintained.

  When the right door 70 is opened and closed, the bearing state holding mechanism 130 described above plays a role of preventing the bearing state of the left hinge mechanism 120 serving as a rotation spindle from being released. Therefore, the protrusion 131 needs to be supported in a direction that coincides with the AA line cross-sectional direction when the right door 70 is closed. In addition, the shape of the second bearing space 134 in which the protruding portion 131 rotates along with the rotation of the shaft portion 73a can be a substantially fan shape instead of a substantially circular shape. That is, if the second bearing space 134 has a substantially fan shape, the rotation range of the protrusion 131 can be limited by adjusting the fan angle, and as a result, the rotation range of the left hinge mechanism 120 can be limited. it can. The bearing hole holding mechanism 130 has been described by taking the shaft portion 73a and the bearing hole 43a formed in the right cabinet edge 41 as opposed to the shaft portion 73a as an example. It goes without saying that the bearing state holding mechanism can be formed in the same manner in the portion and the bearing hole.

Furthermore, the following structure can be considered as another example of a bearing state holding mechanism. FIG. 7 is a view showing the bearing state holding mechanism 140 constituted by the connecting arm 73 and the bearing state holding member 141 from above the right door 70. In the same figure, as in FIG. 4, the bearing state holding member 141 and the connecting arm 73 disposed on the back surface of the right door 70 are further covered with a plate material or the like from the back side and stored in the right door 70. ing. The connecting shaft 73c, the connecting arm 72 disposed above the connecting arm 73, the wires 74a and 74b, and the like are omitted. FIG. 8 is a view showing the bearing state holding mechanism 140 from the front.
In the drawing, the bearing state holding member 141 is disposed closer to the front surface of the right door 70 than the connecting arm 73. Further, the bearing state holding member 141 is supported substantially horizontally by a support means (not shown). Long protrusions 142a and 142b and short protrusions 143a and 143b are formed at the left and right positions on the surface of the bearing state holding member 141 facing the connecting arm 73, respectively. Further, the entire bearing state holding member 141 is urged by a spring 144 in a direction from the front side to the back side of the right door 70.

  On the other hand, the connection arm 73 is formed with projection receiving holes 145a and 145b and projection receiving holes 146a and 146b. The protrusion receiving holes 145 a and 145 b are respectively formed at positions facing the long protrusions 142 a and 142 b of the bearing state holding member 141, and the protrusion receiving holes 145 a and 145 b penetrate the connecting arm 73. In addition, holes that are large enough to allow the long protrusions 142a and 142b to pass therethrough are formed at respective locations facing the protrusion receiving holes 145a and 145b in the plate material or the like that covers the back side of the right door 70, respectively. Through the projection receiving holes 145a and 145b and the holes formed in the plate material or the like, the long projections 142a and 142b can have their tip portions exposed to the outside of the right door 70. Further, the protrusion receiving holes 146a and 146b are positioned so as to face the short protrusions 143a and 143b of the bearing state holding member 141 when the connecting arm 73 is rotated by a predetermined angle in the clockwise direction, and the connecting arm 73 is counterclockwise. Are formed at positions facing the short projections 143a and 143b, respectively, when rotated by a predetermined angle.

  In such a configuration, when the right door 70 is in the closed state, as shown in the upper diagram of FIG. 7, the long projections 142a and 142b penetrating the projection receiving holes 145a and 145b and the holes formed in the plate member or the like are It abuts on the opening frame 45 of the right cabinet 40 at the tip. Therefore, while the bearing state holding member 141 is urged by the spring 144 in the direction from the front side of the right door 70 toward the back side, the long protrusions 142a and 142b are supported, and the front side of the right door 70 is changed from the front side to the back side. Movement in the direction of heading is prohibited. Here, the lengths of the short protrusions 143a and 143b are formed so as not to reach the connecting arm 73 when the bearing state holding member 141 cannot move with the long protrusions 142a and 142b supported. deep.

  Next, a case where the right hinge mechanism 110 is in a bearing state and the left end of the right door 70 is gradually opened will be described as an example. As shown in the lower diagram of FIG. 7, when the right door 70 is gradually opened, the distance between the right door 70 and the opening frame portion 45 increases. Along with this, the bearing state holding member 141 moves in the direction from the front side to the back side of the right door 70 inside the right door 70 by the biasing force of the spring 144, and from the hole formed in the plate material or the like, the right door 70 is moved. The lengths of the tip portions of the long protrusions 142a and 142b that go out to the outside gradually increase. When the right door 70 is opened by a certain angle, the tips of the long protrusions 142 a and 142 b that are in contact with the opening frame 45 are separated from the opening frame 45. The bearing state holding member 141 that has lost support for the biasing force of the spring 144 is further moved in the direction from the front side to the back side of the right door 70 by the force of the spring 144 and approaches the connecting arm 73.

  Here, since the right hinge mechanism 110 is in a bearing state, the connection arm 73 is rotated by a predetermined angle in the clockwise direction as shown in the lower diagram of FIG. Therefore, when the bearing state holding member 141 approaches the connecting arm 73, when the connecting arm 73 rotates a predetermined angle in the clockwise direction, the protrusion receiving hole 146a formed at a position facing the short protrusions 143a and 143b, respectively. , 146b is fitted with short projections 143a, 143b. By fitting the short projections 143a and 143b with the projection receiving holes 146a and 146b, the state where the connecting arm 73 is rotated by a predetermined angle in the clockwise direction is held, and as a result, the bearing state of the right hinge mechanism 110 is held. . The projection receiving holes 145a and 145b may be formed in a long hole shape so that the connection arm 73 can rotate while the long protrusions 142a and 142b penetrate the connection arm 73.

  When the left hinge mechanism 120 is in the bearing state, the connecting arm 73 is rotated by a predetermined angle in the counterclockwise direction. Therefore, when the connecting arm 73 is rotated by the predetermined angle in the counterclockwise direction, the short protrusion 143a, The projection receiving holes 146a and 146b and the short projections 143a and 143b formed at positions facing the 143b are fitted with each other. That is, while the right hinge mechanism 110 or the left hinge mechanism 120 is in a bearing state and the right door 70 is opened at a certain angle or more, the right hinge mechanism 110 or the left hinge mechanism 120 is operated by the function of the bearing state holding mechanism 140. The bearing state of is maintained. Note that the bearing state holding mechanism 140 is not limited to being configured by the connecting arm 73 and the bearing state holding material 141, and may be configured by a combination of the connecting arm 72 and the bearing state holding material 141.

In the present embodiment, the operation of the right door 70 is described as an example, but it goes without saying that the center door 50 and the left door 60 can be opened and closed from both the left and right directions by the same configuration as the right door 70. Yes. In the above description, the lever mechanisms 75a and 75b have been described as an example of the operation state switching unit. However, the operation state switching unit may be any unit that rotates the connecting arm 73 in the clockwise direction or the counterclockwise direction. .
Therefore, as an example of the operation state switching means, as shown in FIG. 9, it is possible to employ a configuration in which push button switches 76a and 76b are provided at left and right positions below the front side of the right door 70. On the back side of the right door 70 corresponding to the positions of the switches 76a and 76b, a cam mechanism that reciprocates left and right in response to the vertical movement of the right door 70 by the switches 76a and 76b. The left end of the cam mechanism and the left end of the connecting arm 73 and the right end of the cam mechanism and the right end of the connecting arm 73 are respectively engaged, and the right end or the left end of the connecting arm 73 is interlocked with the reciprocating motion of the cam mechanism to the left and right. An engagement piece is disposed to move in a substantially vertical upward direction. Therefore, the user can rotate the connecting arm 73 in the clockwise direction or the counterclockwise direction by pressing one of the switch 76a or the switch 76b.

  As another example of the operation state switching means, as shown in FIG. 10, the rotary knob 77 may be disposed at a substantially central position below the front side of the right door 70. On the back side of the right door 70 corresponding to the position of the rotary knob 77, a predetermined position of the rotary knob 77 and the left end of the connecting arm 73 and a predetermined position of the rotary knob 77 and the right end of the connecting arm 73 are respectively associated. At the same time, an engaging piece for moving the right end or the left end of the connecting arm 73 to be engaged in a substantially vertical upward direction is provided in conjunction with the rotating operation of the rotary knob 77. Therefore, the user can rotate the connecting arm 73 in the clockwise direction or the counterclockwise direction by rotating the rotary knob 77 in the clockwise direction or the counterclockwise direction.

  When the connecting arm 73 is rotated by a predetermined angle so that the right hinge mechanism 110 or the left hinge mechanism 120 is in a bearing state, the bearing state can be maintained for a desired period regardless of whether the right door 70 is opened or closed. This is convenient. This is because in the daily life of the user, the direction of the right door 70 that normally opens and closes may be basically determined. Therefore, when the connecting arm 73 is rotated clockwise or counterclockwise by pressing the operating state switching unit once or rotating it in a predetermined direction, until the operating state switching unit is operated next time. It is good also as a structure which cancels | releases the said rotation state, when the said rotation state is hold | maintained and the operation state switching means is pushed again or when it rotates in the direction opposite to the said predetermined direction.

(2) Second Embodiment FIG. 11 is a diagram showing the right door 160 and the right cabinet 150 in a closed state from the front in the second embodiment. Also in the figure, in order to show the hinge mechanism switching unit 161 and the like installed on the back surface of the right door 160, the right door 160 is indicated by a two-dot chain line.
Also in the second embodiment, similarly to the first embodiment, the connecting arm 162 and the connecting arm 163 are rotatably supported by the connecting shafts 162c and 163c at the upper rear side and the lower rear side of the right door 160, respectively. ing. Shaft portions 162 a and 162 b are extended vertically upward at both left and right ends of the connecting arm 162, and shaft portions 163 a and 163 b are extended vertically downward at the left and right ends of the connecting arm 163. In addition, lever mechanisms 165a and 165b are installed near the left and right ends of the connecting arm 163, respectively. A tapered portion 154 is formed at the lower edge of the right cabinet edge 151.

The second embodiment differs from the first embodiment in the following points.
First, the left end of the connecting arm 162 and the left end of the connecting arm 163 are connected by a wire 164a, and the right end of the connecting arm 162 and the right end of the connecting arm 163 are connected by a wire 164b. Further, the tips of the shaft portions 162a and 162b extending at both ends of the connecting arm 162 have a substantially hook shape. The shaft portions 162a and 162b whose tips are substantially hook-shaped are advanced into the opposite bearing holes 152a and 152b when moved in a substantially vertical downward direction, and are opposed to each other when moved in a substantially vertical upward direction. Exit from 152a, 152b. Further, the upper edge of the right cabinet edge 151 is provided with a recess 155 for accommodating the support fittings 156a and 156b in which the substantially hook-shaped portions of the shafts 162a and 162b and the bearing holes 152a and 152b are formed, respectively. Is formed. The following description will focus on the differences from the first embodiment. In the second embodiment, the shaft portion 162b, the bearing hole 152b and the shaft portion 163b opposed to the shaft portion 162b, and the bearing hole 153b opposed thereto are the right hinge mechanism 170, and the shaft portion 162a and the bearing opposed thereto. The hole 152a, the shaft portion 163a, and the bearing hole 153a opposite thereto are used as the left hinge mechanism 180.

FIG. 12 is a diagram showing the right door 160 and the right cabinet 150 from the front when the right hinge mechanism 170 is in a bearing state in the second embodiment.
In order to place the right hinge mechanism 170 in the bearing state in the second embodiment, first, the lever mechanism 165a installed near the left end of the connection arm 163 is pushed up, and the connection arm 163 is rotated in the clockwise direction. Then, by the rotation operation of the connecting arm 163, the shaft portion 163a extending from the left end of the connecting arm 163 moves substantially vertically upward to release the bearing state. In conjunction with the rotation of the connecting arm 163, the wire 164a connecting the left end of the connecting arm 162 and the left end 163 of the connecting arm moves upward, and pushes up the left end of the connecting arm 162. When the connecting arm 162 is pushed up by the wire 164a, the shaft portion 162a extending from the left end of the connecting arm 162 moves in a substantially vertical upward direction, retreats from the corresponding bearing hole 152a, and releases the bearing state. Further, the connecting arm 162 pushed up by the wire 164a rotates in the clockwise direction around the connecting shaft 162c.

  On the other hand, when the connecting arm 163 rotates in the clockwise direction, the shaft portion 163b extending from the right end of the connecting arm 163 moves substantially vertically downward, advances into the opposite bearing hole 153b, and enters the bearing state. Become. Further, in conjunction with the rotation operation of the connecting arm 163, the wire 164b connecting the right end of the connecting arm 162 and the right end of the connecting arm 163 moves downward. Then, as the wire 164b moves downward, the right end of the connecting arm 162 also moves downward. As a result, the shaft portion 162b extending from the right end of the connecting arm 162 moves substantially vertically downward, advances into the opposite bearing hole 152b, and enters a bearing state.

FIG. 13 shows a substantially hook-shaped portion of the shaft portion 162a extending to the left end of the connecting arm 162, and a bearing hole 152a formed at a position facing the shaft portion 162a.
In the figure, the shaft portion 162a includes an extending shaft 162a1, a rotating shaft 162a2, and a biaxial support member 162a3. Further, the bearing hole 152a is formed in a substantially vertical direction at a position facing the rotating shaft 162a2 in a support metal fitting 156a made of a steel plate or the like. The diameter of the bearing hole 152a is slightly larger than the diameter of the opposing rotating shaft 162a2.
Here, the support fitting 156a in which the substantially hook-shaped portion of the shaft portion 162a and the bearing hole 152a are formed is housed in a recess 155 formed in the upper edge portion of the right cabinet edge portion 151. In the same figure, the recessed part 155 is shown with the dashed-two dotted line. The support metal fitting 156a is fixed to the inner side surface of the recess 155 with a screw 156a1 or the like.

  The extending shaft 162a1 extends from the left end of the connecting arm 162, and plays the role of moving the entire shaft portion 162a up and down in a substantially vertical direction as the connecting arm 162 moves. The biaxial support member 162a3 supports the extending shaft 162a1 and the rotating shaft 162a2 at a substantially horizontal position. The biaxial support member 162a3 fixes the two shafts so that the extended shaft 162a1 and the rotary shaft 162a2 do not rotate at a place where the extended shaft 162a1 and the rotary shaft 162a2 are supported. As the entire shaft portion 162a moves up and down in the substantially vertical direction, the rotating shaft 162a2 advances into the opposing bearing hole 152a or retracts from the bearing hole 152a.

  That is, when the entire shaft portion 162a moves in a substantially vertical upward direction with the movement of the connecting arm 162 due to the rotation, the rotating shaft 162a2 retracts from the bearing hole 152a and releases the bearing state. On the other hand, when the entire shaft portion 162a moves substantially vertically downward along with the movement of the connecting arm 162 due to the rotation, the rotating shaft 162a2 advances into the bearing hole 152a and enters a bearing state. The shaft portion 162b extending from the right end of the connecting arm 162 and the bearing hole 152b formed at a position facing the shaft portion 162b also have the same configuration.

  As described above, the hinge mechanism switching unit 161 including the connection arms 162 and 163 and the wires 164a and 164b performs the above-described cooperative operation by the initial movement operation of pushing up the lever mechanism 165a installed near the left end of the connection arm 163. As a result, the right hinge mechanism 170 enters the bearing state, and the left hinge mechanism 180 releases the bearing state. Therefore, the right hinge mechanism 170 serves as a rotation support shaft, and the user can freely open and close the left end of the right door 160. In order to open the right end of the right door 160, the lever mechanism 165b installed near the right end of the connecting arm 163 may be pushed up.

(3) Third Embodiment FIG. 14 is a view showing the right door 190 in a closed state from the back side in the third embodiment. In 3rd embodiment, it demonstrates on the basis of right and left at the time of seeing from the back side of the right door 190. FIG.
As shown in the figure, there is no wire connecting the connecting arms 192 and 193, and instead, a horizontal movement plate 194 is disposed between the connecting arm 192 and the connecting arm 193. The horizontal moving plate 194 has a shape in which four corners of a quadrangle are cut off at a predetermined angle. The four corners cut off at a predetermined angle extend substantially vertically upward from the vicinity of the left and right ends of the connecting arm 192 and the contact pieces 192d and 192e extending substantially vertically downward from the vicinity of the left and right ends of the connecting arm 192. The contact pieces 193d and 193e are in contact with each other. The horizontal movement plate 194 is substantially horizontal by a recess 194a provided at the center of the surface facing the right door 190 and a protrusion 196 provided on the back surface of the right door 190 and fitted into the recess 194a. It is supported in a movable state in the direction. Here, in 3rd embodiment, the said connection arms 192 and 193 and the horizontal displacement board 194 comprise the hinge mechanism switching part said to the 1st aspect.

The connecting arms 192 and 193 are rotatably supported at their center portions by connecting shafts 192c and 193c, and shaft portions 192a and 192b extend vertically upward at the left and right ends of the connecting arm 192, respectively. The shafts 193a and 193b extend vertically downward at the left and right ends of the connecting arm 193, and the lever mechanisms 195a and 195b are installed near the left and right ends of the connecting arm 193. This is the same as the second embodiment. In addition, although not shown, the right cabinet edge in the right cabinet opened and closed by the right door 190 guides each shaft portion to each position facing the shaft portions 192a and 192b and the shaft portions 193a and 193b. Bearing holes for forming a bearing state are formed respectively.
In the third embodiment, the configurations of the shaft and the bearing are the same as those of the shaft and the bearing according to the first embodiment.

FIG. 15 is a view of the right door 190 in the third embodiment viewed from the side. The right side on the paper is the front side of the right door 190. The lever mechanisms 195a and 195b are omitted.
In the drawing, the convex portion 196 provided on the back surface of the right door 190 is fitted into the concave portion 194a provided on the horizontal moving plate 194, whereby the horizontal moving plate 194 is supported in a substantially vertical direction. Since the horizontal movement plate 194 only needs to be supported in a state of being movable in a substantially horizontal direction, a convex portion may be provided on the horizontal movement plate 194 side and a concave portion may be provided on the right door 190 side.

FIG. 16 is a diagram showing the right door 70 from the back when the right hinge mechanism is in a bearing state in the third embodiment.
In order to place the right hinge mechanism in the bearing state in the third embodiment, first, the left lever mechanism 195a installed on the connecting arm 193 is pushed up, and the connecting arm 193 is viewed from the back side of the right door 190. Rotate around. Then, the rotation of the connecting arm 193 causes the shaft portion 193a extending from the left end of the connecting arm 193 to move substantially vertically upward to release the bearing state. On the other hand, the shaft portion 193b extending from the right end of the connecting arm 193 moves substantially vertically downward, advances into the opposite bearing hole 183b, and enters a bearing state. In conjunction with the rotation of the connecting arm 193, the contact piece 193d extending in the vicinity of the left side of the connecting arm 193 also moves in the substantially vertical direction. When the abutting piece 193d moves in a substantially vertical direction, the abutting piece 193d operates to push up the four corner portions of the abutting horizontal moving plate 194 in a substantially vertical upward direction. Here, since the four corners of the horizontal movement plate 194 are cut off at a predetermined angle, the contact piece 193d tries to push up the horizontal movement plate 194 substantially vertically upward, but on the four corners of the horizontal movement plate 194 that comes into contact. , The contact position is gradually moved obliquely in the upper left direction.

  On the other hand, since the horizontal movement plate 194 can move only in a substantially horizontal direction, the horizontal movement plate 194 moves to the right in response to the pushing up of the contact piece 193d. Due to the movement of the horizontal movement plate 194 in the right direction, the contact pieces 192e extending from the vicinity of the right end of the connecting arm 192 are pushed rightward by the four corner portions of the horizontal movement plate 194 in contact. Here, the four corners of the horizontal moving plate 194 are cut off at a predetermined angle, and the connecting arm 192 from which the contact piece 192e is extended is rotatably supported by the connecting shaft 192c. The contact piece 192e receives the force in the right direction from the horizontal movement plate 194, and gradually moves the contact position obliquely in the upper left direction on the four corners of the horizontal movement plate 194 in contact.

When the contact piece 192e moves the contact position with the horizontal moving plate 194 obliquely in the upper left direction, the entire connecting arm 192 rotates counterclockwise as viewed from the back side of the right door 190. Accordingly, the shaft portion 192b extending from the right end of the connecting arm 192 moves substantially vertically upward, advances into the opposite bearing hole 182b, and enters a bearing state, and the shaft portion extended from the left end of the connecting arm 192 192a moves substantially vertically downward, exits from the opposite bearing hole 182a, and releases the bearing state.
In other words, the hinge mechanism switching unit 191 including the connecting arms 192 and 193 and the horizontal moving plate 194 performs the cooperative operation, whereby the right hinge mechanism is in the bearing state and the left hinge mechanism is released from the bearing state.

(4) Summary As described above, the hinge mechanism switching unit 71 composed of the connecting arms 72 and 73 and the wires 74a and 74b performs a predetermined cooperative operation only by performing the initial operation of pushing up the lever mechanism 75a or 75b, and the right hinge One of the mechanism 110 or the left hinge mechanism 120 is in a bearing state, and the other bearing state is released. Therefore, the user can freely open and close the right door 70 from both the left and right directions. Further, according to the bearing state holding mechanisms 130 and 140, when the right door 70 is opened and closed, it is possible to prevent a risk that the bearing state of the hinge mechanism serving as the rotation support shaft is released.

It is a front view of the cabinet with a mirror using the cabinet concerning this invention. It is a front view of the right door and right cabinet which became a closed state. It is a front view of a right door and a right cabinet when the right hinge mechanism is in a bearing state. It is the perspective view which showed the state which made the right side hinge mechanism into the bearing state, and opened the left end of the right door. It is the figure which showed the bearing state maintenance mechanism. It is sectional drawing of a bearing state holding mechanism. It is the figure which showed the other bearing state maintenance mechanism from the upper direction. It is a front view of another bearing state holding mechanism. It is the figure which showed an example of the operation state switching means. It is the figure which showed the other example of the operation state switching means. It is a front view of the right door and right cabinet which were in a closed state in a second embodiment. It is a front view of a right door and a right cabinet when the right hinge mechanism is in a bearing state in the second embodiment. It is the figure which showed the substantially hook-shaped shape part of the axial part, and the bearing hole. It is a rear view of the right door which became a closed state in a third embodiment. It is a side view of a right door in a third embodiment. It is a rear view of the right door when the right hinge mechanism is in a bearing state in the third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Cabinet with mirror 20 ... Central cabinet 30 ... Left cabinet 40 ... Right cabinet 41 ... Right cabinet edge 42a, 42b, 43a, 43b ... Bearing hole 45 ... Opening frame part 50 ... Central door 60 ... Left door 70 ... Right door 71 ... Hinge mechanism switching portions 72, 73 ... connecting arms 72a, 72b, 73a, 73b ... shaft portions 72c, 73c ... connecting shafts 74a, 74b ... wires 75a, 75b ... lever mechanisms 76a, 76b ... switch 77 ... rotary knob 80 ... Center mirror 90 ... Left mirror 100 ... Right mirror 110 ... Right hinge mechanism 120 ... Left hinge mechanism 130 ... Bearing state holding mechanism 131 ... Protrusion 132 ... Opening 133 ... First bearing space 134 ... Second bearing space 140 ... Bearing state Holding mechanism 141 ... Bearing state holding material 142a, 142b ... Long protrusion 143a, 1 3b ... short projection 144 ... springs 145a, 145b, 146a, 146b ... projection receiving hole 150 ... right cabinet 151 ... right cabinet edge 152a, 152b, 153a, 153b ... bearing hole 155 ... recess 160 ... right door 161 ... hinge mechanism switching Portions 162, 163... Connecting arms 162a, 162b, 163a, 163b... Shaft portion 162a1... Extension shaft 162a2. ... Right hinge mechanism 180... Left hinge mechanism 190... Contact piece 194 ... Horizontal transfer Plate 194a ... recess 195a, 195b ... lever mechanism 196 ... protrusions

Claims (3)

A cabinet comprising a cabinet body having an opening on one surface of a substantially rectangular box, a substantially rectangular plate-like door that opens and closes the opening, and a hinge mechanism that enables opening and closing of the door,
The hinge mechanism includes a shaft portion disposed on both left and right edge portions of the opening or the left and right edge portions of the door body, and both left and right edge portions of the opening where the coaxial portion is not disposed or both left and right sides of the door body. It consists of a bearing part arranged at a position facing the coaxial part at the edge part,
The door is
The shaft portion or the bearing portion that is rotatably supported by the shaft perpendicular to the opening and that is disposed on the upper left and right edge portions of the door body is connected at the left and right end portions, and the shaft portion or the bearing that is connected to each other And a first switching member that supports the bearing portion disposed on the upper left and right edges of the opening or the shaft portion so as to be capable of advancing and retreating alternately, and a shaft perpendicular to the opening to be rotatably supported The shafts or bearings disposed on the lower left and right edges of the door body are connected at the left and right ends, and the connected shafts or bearings are connected to the lower left and right edges of the opening. A second switching member that supports the disposed bearing portion or the shaft portion so as to be able to advance and retreat alternately, and the first switching member or the second switching member interposed between the first switching member and the second switching member. The operation state of the other switching member is changed in conjunction with the change in the operation state of the member. The coaxial receiving portion disposed on the right edge of the opening by the operation of the hinge mechanism switching portion having the switching intermediate member to be provided with the coaxial portion or the coaxial receiving portion disposed on the right edge of the door body. Alternatively, the coaxial portion or the coaxial receiving portion disposed at the left edge of the same door body and the coaxial receiving portion disposed at the left edge of the opening or the bearing body by being advanced to the coaxial portion A first bearing state in which the bearing state is released by retreating from the coaxial part, and a coaxial part disposed on the left edge of the door body or a coaxial disposed on the left edge of the opening. Coaxial receiver in which the coaxial part or the coaxial receiving part disposed at the right edge of the door body is disposed at the right edge of the opening while being advanced into the receiving part or the coaxial part to be in a bearing state. The second bearing that releases the bearing state by exiting from the center or coaxial section Switching deliberately,
And by being arranged in a state of being urged toward the rear side from the front side of the door in the door body, to the rear side of the door body taken to the door body is opened from the front side Go and close against the first switching member or the second switching member in a state of being rotated in the clockwise direction or counterclockwise direction, the door body is in the open state more than a certain angle during the bearing hold-for holding a state of being rotated in the clockwise or counter-clockwise direction by mating with the same first switching member or the second switching member,
An operating state switching means that is installed at a predetermined location of the hinge mechanism switching unit and switches the operating state of the hinge mechanism switching unit;
A cabinet characterized by comprising.   The switching intermediate member connects the right end of the first switching member and the right end of the second switching member, and connects the left end of the first switching member and the left end of the second switching member, When the first switching member or the second switching member is rotated to change the position, the position of the other end in the vertical direction to be connected in conjunction with the change in the position is changed, and the upper and lower to be connected to each other. Both the shaft portions or the bearing portions respectively connected to both ends in the direction are advanced in the direction of the bearing portion or the shaft portion facing each other to be in a bearing state, or are retracted to release the bearing state. The cabinet according to claim 1.   The taper part which is the shape which becomes a taper as it approaches the front-end | tip toward the lower edge part of the said cabinet main body, and turned to the direction which the said door body opens and closes is formed. The cabinet according to 2.

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