Cabinets and hinges

Abstract

To improve the design of door-side blades of a hinge and prevent the door from coming off due to external vibrations such as earthquakes, in a cabinet in which the door can be opened 180° or more at a position forward of the housing and can be removed from the housing by operating the hinge pin in the opened state. [Solution] An elastic member 40 is arranged between the frame-side blade 20 and the pin 30 to maintain the connected state in which the pin 30 spans between the shaft tube portion 12 of the door-side blade 10 and the shaft tube portion 23 of the frame-side blade 20. The shaft portion 31 of the pin 30 is arranged forward of the front surface 101 of the door 100. A lever receiving portion 104 is provided on the door 100 side, which pivots when the door is rotated to close to a lock position that restricts the operating lever portion 32 from moving to the pin retracted position when in the connected state.

Description

[Technical Field]

[0001] The present invention relates to a cabinet suitable for storing electrical and electronic equipment, and a hinge suitable for connecting a door and a housing of the cabinet. [Background technology]

[0002] A cabinet for electrical and electronic equipment stores electrical and electronic equipment through an entrance opening on the front of the housing, which is covered with a door. The door and the housing are connected by a hinge. The door is supported on the housing in a state where it can be opened and closed around a hinge pin. When installing electrical and electronic equipment inside the housing, the door is sometimes removed from the housing to prevent the door from getting in the way of the installation work. For this reason, it is necessary to be able to easily remove the door.

[0003] Furthermore, cabinets for electrical and electronic equipment are often closely spaced side by side. For example, server racks housing communication servers may be placed with no gaps between adjacent server racks. In such cases, it is necessary to be able to fully open the doors to the enclosures without interfering with the adjacent cabinets.

[0004] A hinge suitable for such cabinets for electrical and electronic equipment includes a door-side blade attached to the front of the door, a frame-side blade attached to the front of the housing, a pin arranged to be movable axially relative to the shaft tube portion of the frame-side blade and the shaft tube portion of the door-side blade, and an elastic member that biases the pin in a direction that maintains the connection between the shaft tube portion of the frame-side blade and the shaft tube portion of the door-side blade (Patent Document 1).

[0005] The hinge disclosed in Patent Document 1 has a pin shaft that serves as the center of rotation of the door-side blade relative to the frame-side blade, positioned forward of the front of the door, allowing the door to be opened more than 180 degrees at a position forward of the housing.

[0006] Furthermore, the hinge disclosed in Patent Document 1 can move the door to a pin retracted position where it can be removed in a direction perpendicular to the axial direction by performing a pin pushing operation, which moves the operating lever part of the pin in the axial direction against the force of the elastic member when the door is open. Therefore, when the door is open, the pin can be operated to make the door removable from the housing. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-267898 Summary of the Invention [Problem to be solved by the invention]

[0008] However, the hinge disclosed in Patent Document 1 has a structure in which an elastic member is disposed between the shaft tube of the door-side blade and the pin, and a moving groove for rotating and locking the operating lever of the pin is provided on the rear surface of the door-side blade, so the distance from the front surface of the door to the rotation center of the pin is large, and therefore the door-side blade protrudes forward (toward the user) from the front surface of the door greatly. This causes the door-side blade to protrude conspicuously when viewed from the front of the cabinet, resulting in a problem of poor design.

[0009] Furthermore, if, when hanging the door onto the cabinet, you forget to rotate the operating lever of the pin that is inserted into the shaft tube of the frame-side blade and insert it into the locking window of the door-side blade, the pin will be able to move to the pin retracted position. If the cabinet is used without noticing this, and if strong external vibrations such as an earthquake occur and the pin vibrates strongly against the shaft tube of the door-side blade, the pin will automatically move to the pin retracted position and come out of the shaft tube of the frame-side blade, causing the door to come off and damaging the server equipment.

[0010] In view of the above background, the problem that this invention aims to solve is to improve the design of the door-side blades of the hinge in a cabinet in which the door can be opened 180 degrees or more to a position forward of the housing, and in which the door can be removed from the housing by operating the hinge pin while the door is open, and to prevent the door from coming off due to external vibrations such as an earthquake when hanging the door, without the need to turn the pin using the operating lever after the pin is connected between the shaft tube portion of the frame-side blade and the shaft tube portion of the door-side blade. [Means for solving the problem]

[0011] In order to achieve the above object, the present invention provides a hinge comprising a door, a housing, and a hinge connecting the door and the housing, the hinge having a door-side blade attached to the door, a frame-side blade attached to the housing, a pin arranged to be movable in the axial direction relative to the shaft cylindrical portion of the frame-side blade and the shaft cylindrical portion of the door-side blade, and an elastic member urging the pin in a direction in which the pin maintains a connected state spanning the shaft cylindrical portion of the frame-side blade and the shaft cylindrical portion of the door-side blade, and the shaft portion of the pin, which is the central axis of relative rotation of the frame-side blade and the door-side blade, is located forward of a front portion of the door that is fastened to the door-side blade. In a cabinet in which the door is open, a pin movement operation is performed to move the operating lever portion of the pin axially against the bias of the elastic member, thereby moving the door in a direction perpendicular to the axial direction to a removable pin retracted position. The elastic member is arranged between the frame-side blade and the pin, and a lever receiving portion is provided on the door side which rotates when the door is rotated to close to a lock position that restricts the operating lever portion from moving to the pin retracted position in the connected state (hereinafter, this will be referred to as configuration 1).

[0012] According to the above configuration 1, in a cabinet in which the door can be opened 180 degrees or more to a position forward of the housing, and in which the pin can be operated while the door is open to make it removable from the housing, the hinge pin and elastic member are concentrated in the frame-side blade of the hinge, so that the amount of forward protrusion of the door-side blade of the hinge from the front part of the door is reduced, thereby improving the design of the door-side blade, and since the lever receiver on the door prevents the operating lever part from moving to the pin retracted position, when hanging the door, it is possible to prevent the door from coming off due to external vibrations such as an earthquake, without having to turn the pin using the operating lever part after connecting the pin across the shaft tube part of the frame-side blade and the shaft tube part of the door-side blade.

[0013] In the above-mentioned configuration 1, a configuration (hereinafter referred to as configuration 2) can be adopted in which the shaft tube portion of the frame side blade has a locking window portion that restricts the axial forward and backward movement of the operating lever portion when in the connected state, and when the operating lever portion is stopped in a position away from the locking window portion when in the connected state, the operating lever portion is pushed into the locking window portion by the lever receiving portion that rotates to the locked position.

[0014] According to the above-mentioned configuration 2, even if the pin rotation operation to insert the operating lever into the locking window is forgotten after the door is hung and connected, the operating lever can be moved into the locking window once the door is closed. Also, the axial forward and backward movement of the operating lever can be regulated only by the shape of the locking window on the housing side, and is not affected by the axial position accuracy of the lever receiver on the door side, which makes it easy to manufacture and assemble the door side member.

[0015] In the above-mentioned configuration 2, a configuration (hereinafter referred to as configuration 3) can be adopted in which the engagement edge portion of the locking window portion that regulates the axial retraction movement of the operating lever portion is inclined toward the axial retraction side as it moves away from the locking window portion in the direction around the central axis.

[0016] It may be possible that the door is hung with the operating lever of the pin inserted into the locking window of the frame-side blade attached to the housing, with the pin shaft protruding from the shaft tube of the frame-side blade. In this case, when attempting to fit the shaft tube of the door-side blade attached to the door onto the pin shaft, the door may accidentally strike the pin shaft, potentially pushing the pin toward the axial retraction side. According to the above-mentioned configuration 3, when the pin shaft is struck by the door as described above, the inclination of the engaging edge of the locking window guides the operating lever of the pin so that it disengages from the locking window, preventing deformation of the pin.

[0017] In the above configuration 1, a configuration (hereinafter referred to as configuration 4) can be adopted in which the lever receiving portion pivots to the lock position axially facing the operating lever portion when the door is rotated to close.

[0018] According to the above configuration 4, it is not necessary to form a locking window portion in the shaft cylinder portion of the frame-side blade as in the above configuration 2, and the pin-turning operation can be eliminated.

[0019] In any one of the above configurations 1 to 4, a configuration (hereinafter referred to as configuration 5) can be adopted in which the door-side blade has an attachment surface that is fastened to the front portion of the door and a side end surface that faces the shaft tube portion of the frame-side blade in a direction perpendicular to the axial direction, and the lever receiving portion is formed at the corner between the attachment surface and the side end surface.

[0020] According to the above configuration 5, it is not necessary to provide a lever receiving portion on the door, and the lever receiving portion does not protrude from the side end surface or mounting surface of the door side blade, so the shape of the door side blade is not complicated by the lever receiving portion.

[0021] Furthermore, in order to solve the above-mentioned problems, the present invention provides a door-side blade attached to a door, a frame-side blade attached to a housing, a pin arranged to be movable in the axial direction relative to the shaft cylindrical portion of the frame-side blade and the shaft cylindrical portion of the door-side blade, and an elastic member that biases the pin in a direction in which the pin maintains a connected state spanning the shaft cylindrical portion of the frame-side blade and the shaft cylindrical portion of the door-side blade, wherein the shaft portion of the pin, which serves as a central axis for relative rotation of the frame-side blade and the door-side blade, is arranged forward of a front portion of the door that is fastened to the door-side blade, In a hinge in which the door-side blade and the frame-side blade can be moved to a pin retracted position that allows them to be disassembled in a direction perpendicular to the axial direction by a pin movement operation that moves the operating lever portion in the axial direction against the bias of the elastic member, the elastic member is arranged between the frame-side blade and the pin, and the door-side blade has a lever receiving portion that rotates when the door is rotated to close to a lock position that restricts the operating lever portion from moving to the pin retracted position when in the connected state (hereinafter, this will be referred to as configuration 6).

[0022] If the door and the housing are connected by a hinge having the above configuration 6, the cabinet according to the above configuration 1 can be constructed without providing a lever receiving portion on the door.

[0023] In the above-mentioned configuration 6, a configuration (hereinafter referred to as configuration 7) can be adopted in which the shaft tube portion of the frame side blade has a locking window portion that restricts the axial forward and backward movement of the operating lever portion when in the connected state, and when the operating lever portion is stopped in a position away from the locking window portion when in the connected state, the operating lever portion is pushed into the locking window portion by the lever receiving portion that rotates to the locked position.

[0024] By connecting a door and a housing with a hinge having the above configuration 7, a cabinet according to the above configuration 2 can be constructed.

[0025] In the above-mentioned configuration 7, a configuration (hereinafter referred to as configuration 8) can be adopted in which the engagement edge portion of the locking window portion that regulates the axial retraction movement of the operating lever portion is inclined toward the axial retraction side as it moves away from the locking window portion in the direction around the central axis.

[0026] By connecting a door and a housing with a hinge having the above configuration 8, a cabinet according to the above configuration 3 can be constructed.

[0027] In the above configuration 6, a configuration (hereinafter referred to as configuration 9) can be adopted in which the lever receiving portion pivots to the lock position axially facing the operating lever portion when the door is rotated to close.

[0028] According to the ninth aspect, the cabinet according to the fourth aspect can be constructed on the shaft cylinder portion of the frame-side blade.

[0029] In any one of the above configurations 6 to 9, a configuration (hereinafter referred to as configuration 10) can be adopted in which the door-side blade has an attachment surface that is fastened to the front portion of the door and a side end surface that faces the shaft tube portion of the frame-side blade in a direction perpendicular to the axial direction, and the lever receiving portion is formed at the corner between the attachment surface and the side end surface.

[0030] By connecting a door and a housing with a hinge having the above configuration 10, the cabinet according to the above configuration 5 can be constructed. [Effects of the Invention]

[0031] As described above, by adopting the above configuration 1, this invention provides a cabinet in which the door can be opened 180 degrees or more to a position forward of the housing, and the hinge pin can be operated while the door is open to make the door removable from the housing, and in which the design of the door-side blade of the hinge is improved and, during the door hanging operation, the pin is connected between the shaft tube portion of the frame-side blade and the shaft tube portion of the door-side blade, and then it is possible to prevent the door from coming off due to external vibrations such as an earthquake, without the need to turn the pin using the operating lever portion. [Brief explanation of the drawings]

[0032] [Figure 1] FIG. 1 is a perspective view showing a cabinet according to a first embodiment of the present invention; [Figure 2] FIG. 2 is a plan view showing the cabinet of FIG. 1 in a closed state; [Figure 3] FIG. 2 is a plan view showing the cabinet of FIG. 1 in an open state; [Figure 4] (a) is a plan view of the hinge in FIG. 1, (b) is a front view of the hinge in FIG. 1(a), and (c) is a right side view of the hinge in FIG. 1(b). [Figure 5] (a) is a partial view of the hinge pin in Figure 1 when it is in the pin retracted position, and (b) is a partial view of the frame-side blade in Figure 4(b). [Figure 6] FIG. 2 is a partial cross-sectional view showing the vicinity of the operating lever in the closed state when the pin of the hinge in FIG. 1 has been completely turned, cut in the shaft diameter direction. [Figure 7] A partial cross-sectional view taken along the shaft diameter direction showing the rotation of the lever receiver and operating lever when the door is first closed if the hinge pin in Figure 1 has been forgotten to be turned. [Figure 8] FIG. 2 shows the locking structure of the protrusions on the frame side blades and the edge of the door when the door is closed. [Figure 9] FIG. 2 is a plan view showing another example of the front surface of the door fastened to the door side blade of FIG. [Figure 10] FIG. 8 is a partial cross-sectional view similar to FIG. 7 showing a cabinet and hinges according to a second embodiment of the present invention. [Figure 11] FIG. 11 is a perspective view similar to FIG. 1 showing a cabinet according to a third embodiment of the present invention. [Figure 12] 12(a) is a partial cross-sectional view showing the cabinet according to the third embodiment in a closed door state taken along line XII-XII in FIG. 12(b), and FIG. 12(b) is a view similar to FIG. 8 showing the locking structure in the closed door state according to the third embodiment. [Figure 13] FIG. 11 is a perspective view similar to FIG. 1 showing a cabinet according to a fourth embodiment of the present invention. [Figure 14] FIG. 10 is a perspective view showing a door-side blade according to a fourth embodiment. [Figure 15] 10A is a partial cross-sectional view showing the cabinet according to the fourth embodiment in an open door state taken along line XV-XV in FIG. 10B, and FIG. 10B is a view similar to FIG. 8 showing the locking structure in the open door state according to the fourth embodiment. [Figure 16] FIG. 15( a ) is a partial cross-sectional view showing the cabinet according to the fourth embodiment in a closed state; DETAILED DESCRIPTION OF THE INVENTION

[0033] A cabinet according to a first embodiment (hereinafter referred to as "the cabinet") as one example of the present invention will be described with reference to FIGS. 1 to 9 of the accompanying drawings.

[0034] The cabinet shown in FIGS. 1 to 3 includes a door 100, a housing 110, and a hinge that connects the door 100 and the housing 110 together.

[0035] The housing 110 is a box-shaped body having an entrance on its front side and is used, for example, to store electrical and electronic devices. The door 100 is an opening / closing body supported by the housing 110 so as to have a predetermined closed position that covers the entrance of the housing 110 from the front and to be able to open from the closed position to a predetermined angle. The door 100 is openable and closable around a central axis extending in the vertical direction of the housing 110. Note that, in the housing 110 having an entrance on its front side, Figures 2 and 3 partially illustrate one of the left and right ends of a front frame 111 that forms the entrance and a side panel 112 that is continuous therewith. Also, in the door 100 that covers the entrance from the front, one of the left and right ends of a front portion 101 of the door 100 and a fore-edge portion 102 that is continuous therewith are partially illustrated. A mechanism for maintaining the door 100 in a predetermined closed position relative to the housing 110, such as a latch mechanism, is not shown.

[0036] This hinge supports the door 100 so that it can be opened and closed freely relative to the housing 110. This hinge includes a door-side blade 10 attached to the door 100, a frame-side blade 20 attached to the housing 110, a pin 30 having an axle 31 that serves as the central axis for relative rotation of the door-side blade 10 and the frame-side blade 20, and an elastic member 40 that biases the axle 31 of the pin 30 in the axial direction. Here, the axial direction refers to the direction along the aforementioned central axis, and in the illustrated example, coincides with the aforementioned up-and-down direction with the door 100 and the housing 110 as references.

[0037] As shown in Figs. 1 and 4, the door-side blade 10 has a door-side mounting plate 11 and a shaft tube 12 that is continuous with one of the left and right sides of the door-side mounting plate 11, and these parts are integrated seamlessly. The door-side mounting plate 11 has a flat mounting surface 11a. A plurality of holes 11b that intersect with the mounting surface 11a are formed in the door-side mounting plate 11. As shown in Fig. 2, the door-side blade 10 is attached to the door 100 by fastening the mounting surface 11a of the door-side blade 10 to the front surface 101 of the door 100 with a plurality of screw members 51.

[0038] 1 and 4, the shaft tube portion 12 of the door-side blade 10 has a pin hole formed therein into which one end of the shaft portion 31 of the pin 30 can be inserted in the axial direction, and the inner periphery of the pin hole supports one end of the shaft portion 31 in a direction perpendicular to the axial direction (hereinafter referred to as the axial radial direction). The axial length of the shaft tube portion 12 of the door-side blade 10 is set shorter than the axial length of the door-side mounting plate portion 11.

[0039] The frame-side blades 20 are seamlessly integrated with a frame-side mounting plate 21, a side plate 22 extending forward from one of the left and right sides of the frame-side mounting plate 21, and a shaft tube 23 continuing forward from the side plate 22. The frame-side mounting plate 21 and the side plate 22 are formed as angle plates intersecting each other at 90°. The frame-side mounting plate 21 has a flat mounting surface 21a. A plurality of holes 21b intersecting the mounting surface 21a are formed in the frame-side mounting plate 21. As shown in FIG. 2, the frame-side blades 20 are attached to the housing 110 by fastening the mounting surface 21a of the frame-side blades 20 to the front frame 111 of the housing 110 with a plurality of screws 52.

[0040] The side plate portion 22 is located on one of the left and right sides of the edge portion 102 of the door 100. The shaft tube portion 23 of the frame-side blade 20 has a hole into which the other end of the shaft portion 31 of the pin 30 can be inserted in the axial direction, and the inner periphery of the shaft tube portion 23 supports the other end of the shaft portion 31 in the axial direction. The axial length of the shaft tube portion 23 of the frame-side blade 20 is shorter than the axial length of the side plate portion 22.

[0041] 4 and 5, the pin 30 is arranged so as to be able to reciprocate axially by a predetermined stroke relative to the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10. The elastic member 40 biases the pin 30 in a direction in which the shaft portion 31 of the pin 30 maintains a connected state (hereinafter simply referred to as a "connected state") spanning between the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10.

[0042] As shown in Figure 2, the shaft 31 of the pin 30 is located forward of the front surface 101 of the door 100. When the door 100 is in a predetermined closed position, the frame-side mounting plate 21 and the door-side mounting plate 11 are parallel and face the other side, left or right. The door 100 can be opened up to 180° from the predetermined closed position. When the door 100 is opened 180°, as shown in Figure 3, the frame-side mounting plate 21 and the door-side mounting plate 11 are parallel and face the other side, and the door-side mounting plate 11 faces one side, left or right.

[0043] Since the frame-side blades 20 do not have a portion located on either the left or right side of the side plate portion 112 of the housing 110, other housings (not shown) can be placed adjacent to the side plate portion 112 of the housing 110 without any gaps. Even when the housings 110 are placed closely side by side in this way, the door 100 can be opened 180° without interfering with adjacent housings or doors.

[0044] An annular sliding member (not shown) is disposed between the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10. The sliding member is fitted to the end of the shaft tube portion 12 of the door-side blade 10, and is restricted at the fitting portion so that it cannot rotate relative to the shaft tube portion 12. The sliding member is provided to allow the opposing end of the shaft tube portion 23 to slide smoothly around the central axis.

[0045] In addition, in order to prevent the end portion on either the left or right side of the door side mounting plate portion 11 from damaging the frame side blade 20 when the door 100 is opened beyond 180°, a buffer member may be attached to the side plate portion 22 of the frame side blade 20.

[0046] As shown in Figures 1 and 4, the elastic member 40 is made of a coil spring disposed between the frame-side blade 20 and the pin 30. The shaft tube portion 23 of the frame-side blade 20 is shaped like a cylinder with a bottom that receives one axial end of the elastic member 40. The other axial end of the elastic member 40 is received by the other end of the shaft portion 31 that is made of a stepped shaft. The elastic member 40 biases the shaft portion 31 of the pin 30 from inside the shaft tube portion 23 of the frame-side blade 20 toward inside the shaft tube portion 12 of the door-side blade 10.

[0047] The pin 30 has an operating lever portion 32 that protrudes from a shaft portion 31 in a direction perpendicular to the axial direction. The shaft portion 31 is made of a round rod and has a pin hole portion that extends radially in the axial direction at the middle of its axial length. The operating lever portion 32 is made of a spring pin that is press-fitted into the pin hole portion of the shaft portion 31.

[0048] The shaft tube portion 23 of the frame-side blade 20 is formed with a locking window 24 extending in a direction around the central axis and closed at one end around the central axis, a parallel window 25 extending in a direction around the central axis at a position axially opposite the locking window 24 and closed at one end around the central axis, and a cross window 26 spanning between the locking window 24 and the parallel window 25. The locking window 24, parallel window 25, and cross window 26 form a series of slits, forming a space penetrating between the inner and outer peripheries of the shaft tube portion 23 of the frame-side blade 20 in a direction perpendicular to the central axis. The locking window 24, parallel window 25, and cross window 26 are components for forming and guiding the space required to move and stop the operating lever 32 along a predetermined path.

[0049] As shown in Figure 4, when in the connected state, the locking window portion 24 is a notched portion that can restrict the axial forward and backward movement (upward and downward movement in the same figure) of the operating lever portion 32 of the pin 30 and also restrict the rotation of the operating lever portion 32 toward one end in the circumferential direction around the central axis (clockwise in Figure 4(a)).

[0050] Of the locking window 24, the engagement edge 24a that restricts the axial retraction movement of the operating lever portion 32 consists of a spiral portion that is inclined toward the axial retraction side in the direction around the central axis toward the cross window 26. When a large pin load that pushes the pin 30 toward the axial retraction side is applied, the operating lever portion 32 is pressed strongly against the engagement edge 24a, and the inclination of the engagement edge 24a generates a component force that rotates the operating lever portion 32 toward the cross window 26. Therefore, unless the rotation of the operating lever portion 32 is restricted, the pin load causes the operating lever portion 32 to retract along the engagement edge 24a to the cross window 26.

[0051] As shown in Figure 5(a), the parallel window portion 25 is a notched portion that restricts the axial forward and backward movement of the operating lever portion 32 when the pin 30 is in the pin retracted position where it has completely escaped from the shaft tube portion 12 of the door-side blade 10, and that can also restrict the rotation of the operating lever portion 32 toward one end in the circumferential direction around the central axis.

[0052] 4 and 5, the cross window 26 forms an axial movement space for the operating lever 32 that spans between the locking window 24 and the parallel window 25. The cross window 26 provides a linear guide for axially guiding the operating lever 32 that moves between the locking window 24 and the parallel window 25, and is made up of slits that determine the top and bottom dead centers of the linear guide stroke.

[0053] The stroke over which the pin 30 can advance and retract in the axial direction relative to the shaft tube portion 23 of the frame-side blade 20 corresponds to the stroke of the linear guide described above. When the operating lever portion 32 is in a state in which it abuts against the slit end on the axial advancement side of the cross window portion 26 against the bias of the elastic member 40 or is in a state in which it is inserted into the locking window portion 24 (see FIG. 4), the shaft portion 31 of the pin 30 protrudes in the axial direction from the shaft tube portion 23 of the frame-side blade 20 and is in an axial position corresponding to a connected state in which it is inserted into the shaft tube portion 12 of the door-side blade 10. When the operating lever portion 32 is in a state in which it abuts against the slit end on the axial retreat side of the cross window portion 26 or is inserted into the parallel window portion 25, the shaft portion 31 of the pin 30 is in a pin retracted position (a position fully inserted into the shaft tube portion 23 of the frame-side blade 20; see FIG. 5(a)) in which it has completely escaped from the shaft tube portion 12 of the door-side blade 10.

[0054] As described above, the hinge provided in this cabinet includes the door-side blade 10 attached to the door 100, the frame-side blade 20 attached to the housing 110, the pin 30 arranged to be movable in the axial direction relative to the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10, and the elastic member 40 that biases the pin 30 in a direction in which the pin 30 maintains a connected state spanning the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10. The shaft portion 31 of the pin 30, which is the central axis of the relative rotation of the door 100, is positioned forward of the front portion 101 that is fastened to the door-side blade 10 of the door 100, and by performing a pin movement operation in which the operating lever portion 32 of the pin 30 is moved in the axial direction against the bias of the elastic member 40, the door-side blade 10 and the frame-side blade 20 can be set to a pin retracted position where they can be disassembled in a direction perpendicular to the axial direction, and the pin 30 can be transitioned to an engagement state in which it is maintained in the pin retracted position.

[0055] The materials for the door-side blade 10 and the frame-side blade 20 are not particularly limited, but since the shape of the frame-side blade 20 is complex, it is preferable to form the frame-side blade 20 from resin. In the illustrated example, the door-side blade 10 and the frame-side blade 20 are integrally molded.

[0056] As shown in Figures 1, 6, and 7, the door 100 has a window 103 that forms a space between an end portion 102 on the hanging side and a front surface 101. The window 103 is provided by partially cutting out the corner connecting the end portion 102 and the front surface 101 in the axial direction. Of the window 103, a portion that faces the operating lever 32 in the axial direction and the direction around the central axis (in the illustrated example, the edge portion where the front surface 101 is cut out) serves as a lever receiving portion 104 that restricts movement of the operating lever 32 to the pin retracted position. The lever receiving portion 104 pivots near the shaft tube portion 23 of the frame-side blade 20 when the door 100 is opened or closed.

[0057] The lever receiver 104 pivots to a lock position that restricts the operating lever 32 from moving to the pin retracted position when the door is rotated to close in the connected state (see FIG. 7). When the lever receiver 104 is in the lock position with the operating lever 32 in the locking window 24, the operating lever 32 cannot be disengaged from the locking window 24 and enter the cross window 26. On the other hand, when the door 100 is opened, the lever receiver 104 moves away from the operating lever 32 (see FIG. 1), creating an open space sufficient for manual operation to move the operating lever 32 between the locking window 24 and the parallel window 25.

[0058] When removing the door 100 while it is open as shown in FIG. 3, the operating lever 32 of the pin 30 in the connected state shown in FIG. 4 is rotated toward the cross window 26 until it disengages from the locking window 24. Then, by performing a pin pushing operation to move the cross window 26 axially toward the retracted position against the bias of the elastic member 40, the pin 30 can be placed in the pin retracted position shown in FIG. 5(a). This pin pushing operation is performed until the operating lever 32 faces the parallel window 25 around the central axis, and then the operating lever 32 is rotated to enter the parallel window 25, thereby transitioning the pin 30 to a locked state in which it is maintained in the pin retracted position. As long as the pin 30 is in this locked state, the parallel window 25 can restrict the axial movement of the operating lever 32. The bias of the elastic member 40, which is stored in the pin pushing operation, can be used to firmly maintain the engagement between the parallel window 25 and the operating lever 32, so the locked state can be maintained even when the operating lever 32 is released from its finger. Therefore, the door 100 in the open state shown in FIG. 3 can be removed in a direction perpendicular to the axial direction using both hands.

[0059] 5(a) toward the cross window 26 side in the locked state, the engagement between the parallel window 25 and the operating lever 32 is released, and the finger is released from the operating lever 32, and the pin 30 is moved axially forward from the pin retracted position by the bias of the elastic member 40, and is stopped by abutting the end of the slit on the axial forward side of the cross window 26. Therefore, when attaching the door 100 to the housing 110, the door 100 is oriented as shown in FIG. 3, and the shaft cylinder 12 of the door-side blade 10 is placed on the shaft cylinder 23 of the frame-side blade 20 so that the shaft cylinder 23 of the frame-side blade 20 and the shaft cylinder 12 of the door-side blade 10 are coaxially opposed to each other in the axial direction, and the operating lever 32, which is locked in this state, is simply removed from the parallel window 25, and the pin 30 is connected, projecting a predetermined axial length into the shaft cylinder 12 of the door-side blade 10. After this, by performing a pin turning operation to rotate the operating lever portion 32 of the pin 30 located in the cross window portion 26 in the connected state toward the locking window portion 24 (see Figure 5 (b)), the axial forward and backward movement of the operating lever portion 32 can be regulated by the locking window portion 24.

[0060] 1 and 7, the lever receiving portion 104 pivots about the central axis as part of the door 100 when the door is rotated to close in the connected state. If the pin rotation operation described above is properly performed and the operating lever portion 32 is fully inserted into the locking window portion 24 as shown in Fig. 6, the lever receiving portion 104 shown in Fig. 1 does not press the operating lever portion 32 when the door is rotated to close, but pivots to a lock position (the position depicted by the dashed line in Fig. 7) that does not allow the operating lever portion 32 to move toward the cross window portion 26. Therefore, the lever receiving portion 104 can restrict the operating lever portion 32, which is located in the locking window portion 24 in the connected state, from moving to the pin retracted position described above.

[0061] On the other hand, if the aforementioned pin rotation operation is forgotten, the door 100 shown in Fig. 3 will be opened and closed while the operating lever portion 32 is left in a state in which it abuts against the slit end portion on the axial advance side of the cross window portion 26 (see the operating lever portion 32 drawn by the solid line in Fig. 7). If the door 100 is closed once in this left-as-is state as shown in Fig. 2, the operating lever portion 32 located in the cross window portion 26 will be pushed into the locking window portion 24 by the lever receiving portion 104 which pivots in the door closing rotation direction (see the operating lever portion 32 drawn by the dashed line in Fig. 7). Therefore, in this case as well, the lever receiving portion 104 can restrict the operating lever portion 32 located in the locking window portion 24 in the connected state so that it cannot move to the aforementioned pin retracted position. As shown in Figures 2 and 3, when opening or closing the door 100, the operating lever portion 32 of the pin 30 on the housing 110 side does not rotate significantly together with the door 100, and as shown in Figure 7, the operating lever portion 32 only rotates slightly when the operating lever portion 32 is inserted into the locking window portion 24 by the lever receiving portion 104, so there is very little risk of the operating lever portion 32 damaging the wiring etc. inside the housing 110 during this rotation.

[0062] 1 and 7 is set to the locked position described above each time the door 100 is closed. Therefore, when a server device or the like is stored in the housing 110 shown in Fig. 3 and the door 100 is in use with the door 100 closed as shown in Fig. 2, the lever receiving portion 104 is always in the locked position, so that when the pin 30 vibrates in the axial direction relative to the shaft tube portion 23 of the frame-side blade 20 due to external vibrations such as an earthquake, even if the operating lever portion 32 tries to be guided toward the cross window portion 26 due to contact with the engaging edge portion 24a shown in Figs. 4 and 7, it will not enter the cross window portion 26 and reach the pin retracted position.

[0063] As described above, there may be cases where the pin is not operated in a state in which the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10 are coaxially opposed to each other in the axial direction, but rather the operation of hanging the door 100 shown in Figure 3 is performed in a state in which the operating lever portion 32 is inserted into the locking window portion 24 of the frame-side blade 20 attached to the housing 110 and the shaft portion 31 is protruding from the shaft tube portion 23 of the frame-side blade 20 (see also Figure 5(b)). In this case, when attempting to fit the shaft tube portion 12 of the door-side blade 10 attached to the door 100 onto the shaft portion 31, the door 100 may accidentally hit the shaft portion 31, which may impact and push the pin 30 toward the axial retracted side. When the shaft portion 31 is struck by the door 100, the inclination of the engaging edge portion 24a of the locking window portion 24 guides the operating lever portion 32 to come out of the locking window portion 24, and allows it to enter the cross window portion 26 and move to the axial retraction side, thereby preventing deformation of the pin 30.

[0064] If the door 100, which is in the predetermined closed position, were allowed to be improperly moved toward the axial advancement side of the pin 30 relative to the housing 110, there is a concern that the pin 30 would come out of the shaft tube portion 12 of the door-side blade 10, causing the door 100 to fall and damage server equipment, etc. To eliminate such concerns, the side plate portion 22 of the frame-side blade 20 is provided with a protrusion 22a, as shown in Figures 2 and 8, so that the door 100 can be axially locked when in the predetermined closed position. When the door 100 is closed, the protrusion 22a enters the space formed by the window portion 103 and faces the portion of the window portion 103 above the edge portion 102 in the axial direction. In the event of the aforementioned improper movement, the protrusion 22a axially locks the portion of the window portion 103 above the edge portion 102, preventing the door 100 from falling.

[0065] This cabinet is as described above (see Figures 1 to 7 as appropriate), and includes a door 100, a housing 110, and a hinge connecting the door 100 and the housing 110, and this hinge includes a door-side blade 10 attached to the door 100, a frame-side blade 20 attached to the housing 110, a pin 30 arranged axially movable relative to the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10, and a pin 30 extending between the shaft tube portion 23 of the frame-side blade 20 and the shaft tube portion 12 of the door-side blade 10. and an elastic member 40 that urges the pin 30 in a direction that maintains the connected state, and the shaft portion 31 of the pin 30, which serves as the central axis of relative rotation between the frame-side blade 20 and the door-side blade 10, is located forward of the front surface 101 of the door 100, and with the door 100 open, the door 100 can be moved in a direction perpendicular to the axial direction to a pin retracted position where it can be removed by a pin movement operation that moves the operating lever portion 32 of the pin 30 in the axial direction against the urging of the elastic member 40. Therefore, with this cabinet, the door 100 can be opened 180 degrees or more to a position forward of the housing 110, and with the door 100 open, the pin can be operated to bring the door 100 into a state where it can be removed from the housing 110.

[0066] In this cabinet, the elastic member 40 is arranged between the frame-side blade 20 and the pin 30, and therefore the pin 30 and the elastic member 40 are concentrated in the frame-side blade 20, so that the amount of forward protrusion of the door-side blade 10 relative to the front surface 101 of the door 100 can be reduced, improving the design of the door-side blade 10.

[0067] Furthermore, this cabinet is provided with a lever receiving portion 104 on the door side (door 100) that rotates when the door is rotated to close to a lock position that restricts the operating lever portion 32 from moving to the pin retracted position when in the connected state. As a result, the lever receiving portion 104 on the door side restricts the operating lever portion 32 from moving to the pin retracted position, so that when hanging the door 100, after the pin 30 is connected across the shaft tube portion 23 of the frame side blade 20 and the shaft tube portion 12 of the door side blade 10, it is not necessary to turn the pin using the operating lever portion 32, and it is possible to prevent the door 100 from coming off the housing 110 side due to external vibrations such as an earthquake.

[0068] Cabinets for electrical and electronic equipment often use doors or housings with multiple perforations for heat dissipation to prevent degradation of the performance of the housed electronic devices. In such cabinets, even if the door is locked after being rotated closed, a foreign object such as a piece of piano wire may be inserted through the perforations and operate the operating lever inside the cabinet. Even if a foreign object reaches the operating lever 32 through the perforations, the lever receiving portion 104 on the locked door side is in the locked position, so the foreign object cannot move the pin 30 to the pin retracted position. Therefore, when a cabinet is configured with multiple perforations formed in at least one of the door and housing, it is possible to prevent the door 100 from being illegally removed in a locked state by a foreign object inserted through the perforations.

[0069] Furthermore, this cabinet has a locking window 24 that restricts the axial movement of the operating lever 32 when the shaft tube 23 of the frame-side blade 20 is in the connected state. When the operating lever 32 is stopped in a position disengaged from the locking window 24 in the connected state, the lever receiver 104 pivots to the locked position, pushing the operating lever 32 into the locking window 24. Therefore, even if the pin rotation operation described above is forgotten after the door 100 is connected during the hanging operation, the operating lever 32 can be moved into the locking window 24 by simply closing the door 100. Therefore, the operating lever 32 will not unexpectedly move to the pin retracted position due to some external force. Furthermore, the axial movement of the operating lever 32 can be restricted solely by the shape of the locking window 24 on the housing side and is not affected by the axial position accuracy of the lever receiver 104 on the door side, facilitating the manufacture and assembly of the door-side components.

[0070] Furthermore, in this cabinet, the engagement edge portion 24a of the locking window portion 24, which regulates the axial retraction movement of the operating lever portion 32, is inclined toward the axial retraction side as it moves away from the locking window portion 24 in the direction around the central axis.Therefore, when the operating lever portion 32 of the pin 30 is inserted into the locking window portion 24 of the frame side blade 20 attached to the housing 110 and the shaft portion 31 of the pin 30 is allowed to protrude from the shaft tube portion 23 of the frame side blade 20, if the shaft portion 31 of the pin 30 is accidentally struck by the door 100 when the operation of hanging the door 100 is performed, the inclination of the engagement edge portion 24a of the locking window portion 24 guides the operating lever portion 32 of the pin 30 to move away from the locking window portion 24, thereby preventing deformation of the pin 30.

[0071] In this cabinet, in order to accommodate situations where the housings are adjacent to each other with no gaps in the left-right direction, an example is shown in which the allowable opening angle of door 100 from the specified closed position of door 100 is set to 180°, but it is also possible to set the door opening angle to a value greater than 180°.

[0072] Furthermore, in this cabinet, the mounting surface 11a of the door-side blade 10 is fastened to the front surface 101 located at the frontmost part of the door 100, but if there is no need to increase the opening angle, there is no need to fasten the door-side blade to the frontmost part of the door. For example, as shown in FIG. 9, the front surface 101 to be fastened to the door-side blade 10 may be formed at a position set back from the frontmost part 105, thereby making it possible to further suppress the door-side blade 10 from protruding forward relative to the frontmost part 105.

[0073] Furthermore, while this cabinet has been shown as an example in which the door 100 is provided with the lever receiving portion 104, the lever receiving portion may be provided on the door side, i.e., at a portion that rotates integrally with the door-side blade around the central axis of the hinge, and may be provided on the door-side blade or on a member other than the door-side blade (an object fixed to the door). Figure 10 shows the main parts of a cabinet and hinge according to a second embodiment as such a modified example. Note that, here, only changes from the first embodiment will be described, and the same reference numerals will be used for common components.

[0074] The door-side blade 10 of the hinge provided in the cabinet shown in Figure 10 has a side end face 13 that faces the shaft tube portion 23 of the frame-side blade 20 in the axial direction, and a lever receiving portion 14 formed at the corner between the side end face 13 and the mounting surface 11a. The axial distance between the door-side mounting plate portion 11 and the shaft tube portion 23 of the frame-side blade 20 is determined between the side end face 13 and the outer periphery of the shaft tube portion 23. The side end face 13 is flat along the axial direction. The lever receiving portion 14 is chamfered so as not to intersect with the imaginary extension planes of the flat side end face 13 and the mounting surface 11a.

[0075] The lever receiving portion 14 forming the corner described above is located near the shaft tube portion 23 of the frame-side blade 20, and can therefore be used to restrict the operation lever portion 32. In other words, the door 100 has been modified in shape so that it does not have a portion that comes into contact with the operation lever portion 32 before the lever receiving portion 14 when the door is rotated to close. The lever receiving portion 14 is located in a position facing the operation lever portion 32 in the shaft diameter direction and around the central axis, which is in an axial position corresponding to the connected state, and can rotate when the door is rotated to close up to a lock position that restricts the operation lever portion 32 from moving to the pin retracted position in the connected state.

[0076] As described above, the cabinet shown in FIG. 10 has, in particular, a mounting surface 11a where the door-side blade 10 is fastened to the front surface 101 of the door 100, and a side end surface 13 that faces the shaft tube portion 23 of the frame-side blade 20 in a direction perpendicular to the axial direction, and the lever receiving portion 14 is formed at the corner between the mounting surface 11a and the side end surface 13, so that it is not necessary to provide a lever receiving portion on the door 100, and since the lever receiving portion 14 does not protrude from the side end surface 13 and mounting surface 11a of the door-side blade 10, the shape of the door-side blade 10 is not complicated by the lever receiving portion 14.

[0077] Furthermore, the hinge shown in FIG. 10 has a lever receiving portion 14 that, when the door is rotated to close, rotates to a locking position that restricts the operation lever portion 32 from moving to the pin retracted position when the door-side blade 10 is in the connected state. By using this to connect the door 100 and the housing 110, it is possible to construct a cabinet that has a door opening angle of 180° or more, the ability to remove the door 100 by operating the pin, the design of the door-side blade 10, and the ability to prevent the door from coming off if the pin rotation operation is forgotten, without providing a lever receiving portion on the door 100.

[0078] Of course, if the door 100 and the housing 110 are connected using the hinge shown in Figure 10, even if the pin rotation operation is forgotten, the lever receiving portion 14 can be used to move the operating lever portion 32 into the locking window portion 24, and the shape of the door side blade 10 will not be complicated by the lever receiving portion 14, and a cabinet can be constructed that can prevent deformation of the pin 30 when the shaft portion 31 of the pin 30 is struck by the door 100.

[0079] If the pin rotation operation described above is forgotten, it is possible to restrict the movement of the operating lever part to the pin retracted position by positioning the lever receiving part on the axially retracted side relative to the operating lever part; however, in this case, the lever receiving part must be axially opposed to the operating lever part in the locked position, which requires the lever receiving part of the door side blade to protrude in the axial direction from the door side mounting plate part.

[0080] In each of the above-described embodiments, an example was shown in which the locking window portion 24 was formed in the frame-side blade 20, but it is also possible to omit the locking window portion 24. As an example, a third embodiment is shown in Figures 11 and 12. Note that, here, only changes from the first embodiment will be described, and the same reference numerals will be used for common components.

[0081] The shaft tube portion 23 of the frame-side blade 20 according to the third embodiment does not have the locking window portion 24 (see also FIG. 1 ) of the first embodiment. Instead, it has a horizontal window portion 27 extending around the central axis and closed at one end around the central axis, and a vertical window portion 28 intersecting the other end of the horizontal window portion 27 opposite the one end around the central axis. The closed end of the horizontal window portion 27 is changed to the end facing the door opening direction of the door 100. The horizontal window portion 27 has a notch-shaped portion that restricts the axial movement of the operating lever portion 32 and the rotation of the operating lever portion 32 toward the one end around the central axis when the pin 30 is in the pin retracted position. The vertical window portion 28 provides a linear guide for guiding the operating lever portion 32 in the axial direction and has a slit portion that determines the top and bottom dead centers of the linear guide stroke. As in the first embodiment, the axial stroke of the pin 30 relative to the shaft tube portion 23 of the frame-side blade 20 corresponds to the linear guide stroke described above. That is, when hanging the door 100, the operating lever 32 is rotated from the horizontal window 27 to the vertical window 28, and the finger is released from the operating lever 32, and the pin 30 is stopped by the bias of the elastic member 40 from the pin retracted position until it abuts against the slit end on the axially advancing side of the vertical window 28, thereby entering a connected state. At this stopped position, the hanging operation is completed without rotating the pin by rotating the operating lever 32.

[0082] The lever receiving portion 106 is a portion of the window portion 103 of the door 100 that pivots to a locked position axially facing the operating lever portion 32 as shown in Fig. 12 (in the illustrated example, the edge portion on the axially retracted side of the window portion 103) when the door is rotated to close. In the connected state shown in Fig. 11, even when the door 100 is opened or closed, the door side of the door 100 including the window portion 103 does not come into contact with the operating lever portion 32 that abuts against the slit end of the vertical window portion 28 due to the biasing force of the elastic member 40. Therefore, the lever receiving portion 106 of the door 100 does not push the operating lever portion 32 in the closing direction when the door is rotated to close, but pivots to the locked position so as to face the axially retracted side of the operating lever portion 32 every time the door 100 is closed. For this reason, when the door 100 is in a closed state in a predetermined closed position, and also when the door is in a partially closed state in which the opening angle is such that the lock position is established between the operating lever part 32 and the lever receiving part 106, the pin 30 cannot escape to the pin retracted position by itself in the event of an earthquake or the like due to the restriction of the lever receiving part 106 of the door 100.

[0083] As described above, the cabinet according to the third embodiment has a lever receiving portion 106 on the door side (door 100) that pivots to a lock position axially opposite the operating lever portion 32 when the door is rotated to close. This eliminates the need to form a locking window portion, as in the first embodiment, in the shaft tube portion 23 of the frame-side blade 20, and eliminates the need for a pin-twisting operation. While the third embodiment shows an example in which the lever receiving portion 106 is formed on the door 100, it is also possible to form it on the frame-side blade. A fourth embodiment, as an example, is shown in Figures 13 to 16. Here, only changes from the third embodiment are described, and the same reference numerals are used for common components.

[0084] The door-side blade 10 according to the fourth embodiment has a lever receiving portion 15 at a position overlapping the space formed by the window portion 103 of the door 100 in the axial direction. The lever receiving portion 15 is formed by the end surface on the axial retraction side of a notch formed at the corner between the mounting surface 11a and the side end surface 13 of the door-side blade 10. The lever receiving portion 15 is a flat surface extending in the axial direction at a position higher on the axial advance side than the edge (lower end edge) on the axial retraction side of the window portion 103. In order to arrange the lever receiving portion 15 at a position overlapping the window portion 103, the mounting surface 11a and the side end surface 13 of the door-side blade 10 are each extended. The mounting surface 11a extends toward the shaft tube portion 23 of the frame-side blade 20, and the side end surface 13 extends in a curved shape along the shaft tube portion 23 so as not to interfere with the shaft tube portion 23 of the frame-side blade 20.

[0085] 13, even when the door 100 is opened or closed, the door side of the door-side blade 10, including the lever receiver 15, is prevented from coming into contact with the operating lever 32 that abuts against the slit end of the vertical window 28 due to the biasing force of the elastic member 40. Therefore, the lever receiver 15 of the door-side blade 10 does not push the operating lever 32 in the closing direction when the door is rotated to close, but every time the door 100 is closed, it pivots to the lock position so as to face the axial retracted side of the operating lever 32 at a position higher in the axial advance direction than the axial retracted side edge (lower edge) of the window 103. Therefore, when the door 100 is in the closed state described above, or in a partially closed state where the opening angle between the operating lever 32 and the lever receiver 15 establishes the locked position, the lever receiver 15 of the door-side blade 10 prevents the pin 30 from automatically escaping to the pin retracted position in the event of an earthquake, etc.

[0086] In this way, in the cabinet according to the fourth embodiment, the door-side blade 10 is provided with a lever receiving portion 15 that pivots when the door is rotated to close to a locking position axially opposite the operating lever portion 32, so there is no need to form a locking window portion like in the first embodiment in the shaft tube portion 23 of the frame-side blade 20, and pin-twisting operation can be eliminated. Furthermore, since the lever receiving portion 15 is formed at the corner between the mounting surface 11a and the side end surface 13, there is no need to provide a lever receiving portion on the door 100, and it is possible to avoid the lever receiving portion 15 protruding from the side end surface 13 and mounting surface 11a of the door-side blade 10.

[0087] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. Therefore, the scope of the present invention is defined by the claims, and it is intended to include all modifications within the meaning and scope of the claims.

[0088] In the embodiment disclosed herein, an example has been shown in which a window portion is provided by partially notching in the axial direction a corner portion connecting the edge portion and the front portion of the door, but unlike Patent Document 1, this invention does not require the operating lever portion to penetrate and protrude from one side of the door to the other, so for example, in the fourth embodiment, instead of providing window portion 103 by notching a corner portion connecting edge portion 102 and front portion 101 of the door, the corner portion may be recessed and deformed so as not to interfere with operating lever portion 32 or protrusion 22a when opening or closing door 100. The same applies to the other embodiments. [Explanation of symbols]

[0089] 10 Door side blade 11a Mounting surface 12 Shaft cylinder part 13 Side end face 14, 15, 104, 106 Lever receiving part 20 Frame side blade 23 Shaft cylinder part 24 Locking window 24a Engagement edge 30-pin 31 Shaft 32 Operating lever 40 Elastic member 100 doors 101 Front part 110 Case

Claims

1. The device includes a door, a housing, and a hinge that connects the door and the housing, the hinge comprises a door-side blade attached to the door, a frame-side blade attached to the housing, a pin arranged to be movable in the axial direction relative to the shaft cylindrical portion of the frame-side blade and the shaft cylindrical portion of the door-side blade, and an elastic member that biases the pin in a direction in which the pin maintains a connected state spanning the shaft cylindrical portion of the frame-side blade and the shaft cylindrical portion of the door-side blade, The shaft portion of the pin, which serves as a central axis of relative rotation between the frame-side blade and the door-side blade, is disposed forward of a front surface portion of the door that is fastened to the door-side blade, In a cabinet, the door can be moved to a removable pin retracted position in a direction perpendicular to the axial direction by a pin moving operation that moves an operating lever portion of the pin in the axial direction against the biasing force of the elastic member while the door is open, the elastic member is disposed between the frame-side blade and the pin, A cabinet characterized in that a lever receiving portion is provided on the door side, which rotates when the door is rotated to close to a lock position that restricts the operating lever portion from moving to the pin retracted position when in the connected state.

2. the shaft tube portion of the frame-side blade has a locking window portion that restricts the axial movement of the operating lever portion when in the connected state, 2. The cabinet of claim 1, wherein when the operating lever portion is stopped in a position away from the locking window portion in the connected state, the operating lever portion is pushed into the locking window portion by the lever receiving portion pivoting to the lock position.

3. A cabinet as described in claim 2, wherein an engaging edge portion of the locking window portion that restricts the axial retraction movement of the operating lever portion is inclined toward the axial retraction side as it moves away from the locking window portion in a direction around the central axis.

4. The cabinet according to claim 1 , wherein the lever receiving portion pivots to the lock position axially opposite the operating lever portion when the door is rotated to close.

5. The door-side blade has a mounting surface that is fastened to the front surface of the door and a side end surface that faces the shaft cylinder portion of the frame-side blade in a direction perpendicular to the axial direction, 5. The cabinet according to claim 1, wherein the lever receiving portion is formed at a corner between the mounting surface and the side end surface.

6. a door-side blade attached to a door, a frame-side blade attached to a housing, a pin arranged to be movable in the axial direction relative to a shaft cylindrical portion of the frame-side blade and a shaft cylindrical portion of the door-side blade, and an elastic member that biases the pin in a direction in which the pin maintains a connected state spanning the shaft cylindrical portion of the frame-side blade and the shaft cylindrical portion of the door-side blade, The shaft portion of the pin, which serves as a central axis of relative rotation between the frame-side blade and the door-side blade, is disposed forward of a front surface portion of the door that is fastened to the door-side blade, In a hinge in which the door-side blade and the frame-side blade can be disassembled in a direction perpendicular to the axial direction by a pin movement operation in which the operating lever portion of the pin is moved in the axial direction against the biasing force of the elastic member, the elastic member is disposed between the frame-side blade and the pin, The hinge is characterized in that the door side blade has a lever receiving portion that rotates when the door is rotated to close to a lock position that restricts the operating lever portion from moving to the pin retracted position when in the connected state.

7. the shaft tube portion of the frame-side blade has a locking window portion that restricts the axial movement of the operating lever portion when in the connected state, 7. A hinge as described in claim 6, wherein when the operating lever portion is stopped in a position away from the locking window portion in the connected state, the operating lever portion is pushed into the locking window portion by the lever receiving portion pivoting to the lock position.

8. A hinge as described in claim 7, wherein the engagement edge portion of the locking window portion that restricts the axial retraction movement of the operating lever portion is inclined toward the axial retraction side as it moves away from the locking window portion in the direction around the central axis.

9. The hinge according to claim 6, wherein the lever receiving portion pivots to the lock position axially opposite the operating lever portion when the door is rotated to close.

10. The door-side blade has a mounting surface that is fastened to the front surface of the door and a side end surface that faces the shaft cylinder portion of the frame-side blade in a direction perpendicular to the axial direction, 10. The hinge according to claim 6, wherein the lever receiving portion is formed at a corner between the mounting surface and the side end surface.

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