Cabinet

Abstract

This cabinet comprises a pivoting door, a first lock mechanism, and a second lock mechanism. The second lock mechanism comprises a latching member and a catching member. The catching member comprises a base part having a catching surface that catches the latching member, and a projecting part that projects from the base part in a first direction, which is the direction along an opening direction of an opening part. The first lock mechanism and the second lock mechanism are arranged along a second direction, which is the direction of the pivot axis of the pivoting door, and the distance in the first direction between a projecting end of the projecting part and the catching surface is set according to the distance in the second direction between the first lock mechanism and the second lock mechanism.

Description

cabinet

[0001] The present disclosure relates to a cabinet.

[0002] Japanese Utility Model Application Laid-Open Publication No. 04-025405 discloses a closed switchboard in which a switchboard door having a handle with a latch is hinged so as to be able to be opened and closed.

[0003] For cabinets such as power distribution boards, there is a demand for technology that can reliably seal the housing.

[0004] An aspect of the present disclosure is a cabinet comprising: a pivoting door capable of blocking an opening provided in a housing; a first locking mechanism capable of locking the pivoting door to the housing; and a second locking mechanism capable of locking the pivoting door to the housing, wherein the second locking mechanism comprises an engaging member that rotates in response to rotation of an operating unit provided on the pivoting door; and a locking member that is fixed to the housing and locks the engaging member, wherein the locking member comprises a base having a locking surface that locks the engaging member, and a protrusion that protrudes from the base in a first direction that is a direction along the opening direction of the opening, wherein the first locking mechanism and the second locking mechanism are arranged along a second direction that is the direction of the pivot axis of the pivoting door, and a first distance that is the distance in the first direction between the protruding end of the protrusion and the locking surface is set according to a second distance that is the distance between the first locking mechanism and the second locking mechanism in the second direction.

[0005] Fig. 1 is a perspective view showing a cabinet according to one embodiment. Fig. 2 is a perspective view showing the cabinet with a pivot door open. Fig. 3 is a perspective view showing a second locking mechanism. Fig. 4 is a side view showing the second locking mechanism. Fig. 5 is a perspective view showing a second locking mechanism according to a comparative example. Fig. 6 is a perspective view showing a cabinet according to a comparative example.

[0006] An embodiment will be described below. In the embodiment, the front-rear direction, left-right direction, and up-down direction will be described according to the directions of the arrows in the drawings, but these directions do not limit the actual arrangement direction.

[0007] As shown in FIGS. 1 and 2, the cabinet 10 includes a housing 12, a pivoting door 14, a first locking mechanism 16, and a second locking mechanism 18.

[0008] The housing 12 has a top wall 12A, a bottom wall 12B, a right wall 12C, a left wall 12D, and a rear wall 12E. Casters may be provided on the bottom wall 12B. The housing 12 is provided with an opening 20 (FIG. 2). The opening (opening end) of the opening 20 is located on the front surface.

[0009] The pivoting door 14 is pivotally attached to the housing 12. The pivoting door 14 includes a door main body 22 and a pivoting member 24. The door main body 22 is formed in a rectangular shape having a pair of long sides and a pair of short sides, but is not limited to this. The pivoting member 24 has a pivot axis AX1 along the vertical direction. The pivoting member 24 connects the housing 12 and the door main body 22 so that the door main body 22 can pivot relative to the housing 12. The pivoting member 24 may be a hinge. Although FIGS. 1 and 2 show three pivoting members 24, this is not limiting. The number of pivoting members 24 may be one or a plurality of pivoting members other than three. A pivot axis line LN (FIG. 1), which is a line passing through the pivot axes AX1 of one or more pivoting members 24, extends along the vertical direction. The door main body 22 pivots around the pivot axis AX1. When the door main body 22 is in the closed position, the pivoting door 14 blocks the opening 20.

[0010] An operating unit 26 ( FIG. 1 ) is provided on the front surface (front face) of the door main body 22. The operating unit 26 is used to operate the second locking mechanism 18. The operating unit 26 has a rotation axis AX2. When the door main body 22 is in the closed position, the rotation axis AX2 is along the front-rear direction. By rotating the operating unit 26, the operating unit 26 can be switched between a locked position P1 and an unlocked position P2. A recess 28 ( FIG. 2 ) is formed on the back surface (rear face) of the door main body 22. The recess 28 is formed in a portion of the back surface of the door main body 22 other than the peripheral edge portion, but is not limited to this.

[0011] The first locking mechanism 16 is a mechanism that can lock the pivot door 14 to the housing 12. The first locking mechanism 16 may have an interlock function. For example, the first locking mechanism 16 may be a mechanism that can release the lock when the electrical circuit is interrupted (a breaker interlock mechanism).

[0012] The second locking mechanism 18 is a mechanism that can lock the pivot door 14 to the housing 12. The second locking mechanism 18 is used to ensure that the housing 12 is sufficiently airtight.

[0013] The first locking mechanism 16 and the second locking mechanism 18 are disposed along the direction of the rotation axis LN. The openings of the openings 20 are located between the rotating member 24 and the first locking mechanism 16, and between the rotating member 24 and the second locking mechanism 18.

[0014] The first locking mechanism 16 has a different configuration from the second locking mechanism 18, but may have the same configuration as the second locking mechanism 18. As shown in FIG. 2 , the second locking mechanism 18 includes an engaging member 30 and a locking member 32.

[0015] The engaging member 30 is disposed on the rear surface of the door main body 22. The engaging member 30 rotates in response to the rotation of the operating portion 26. By rotating the engaging member 30, the engaging member 30 can be switched between a locked position P10 and an unlocked position P20. The locking member 32 is fixed to the housing 12. More specifically, the locking member 32 is fixed to the right wall 12C of the housing 12. Note that when the rotating member 24 is provided on the right wall 12C, the locking member 32 is fixed to the left wall 12D.

[0016] As shown in Figure 3, the locking member 32 locks the engaging member 30 set to the lock position P10. The locking member 32 is plate-shaped, but is not limited to this. The locking member 32 has a base 34 and a protrusion 36. The base 34 and the protrusion 36 are integrally formed, but may be separate bodies. If the base 34 and the protrusion 36 are separate bodies, the base 34 and the protrusion 36 are connected by a joining member.

[0017] The base 34 includes a first portion 38 and a second portion 40. The first portion 38 is fixed to the housing 12. The second portion 40 is used to lock the engaging member 30. The first portion 38 is connected to one end of the second portion 40. The protrusion 36 is connected to the other end of the second portion 40. The second portion 40 has a locking surface LS that locks the engaging member 30. As shown in FIG. 2 , the locking surface LS is disposed along the rear wall 12E of the housing 12 while being spaced apart from the rear wall 12E. The normal direction of the locking surface LS is aligned with the normal direction of the rear wall 12E.

[0018] As shown in FIG. 2 , the protrusion 36 extends from the second portion 40 of the base 34 along the opening direction of the opening 20. As shown in FIG. 4 , the protrusion 36 protrudes forward from the base 34. The protruding end E1 of the protrusion 36 is located forward of the front end E2 of the right wall 12C. When the door body 22 closes the opening 20, the protruding end E1 of the protrusion 36 is located inside the recess 28 ( FIG. 2 ) of the door body 22. The protruding end E1 of the protrusion 36 may be located rearward of the front end E2 of the right wall 12C. When the protruding end E1 of the protrusion 36 is located rearward of the front end E2 of the right wall 12C, the recess 28 does not need to be formed in the door body 22. Furthermore, when the protruding end E1 of the protrusion 36 is located rearward of the front end E2 of the right wall 12C, a convex portion may be formed on the back surface (rear surface) of the door body 22.

[0019] 2, the first distance t is a length that prevents the first locking mechanism 16 from locking the pivot door 14 to the housing 12 when the engaging member 30 abuts against the protruding end E1 of the protruding portion 36. The first distance t is the distance in the front-to-rear direction between the protruding end E1 of the protruding portion 36 and the locking surface LS.

[0020] The first distance t is set in accordance with the second distance h. The second distance h is the distance between the first locking mechanism 16 and the second locking mechanism 18 in the up-down direction (the direction of the rotation axis LN ( FIG. 1 )). More specifically, the second distance h is the distance between the center of the first locking mechanism 16 and the center of the second locking mechanism 18 in the up-down direction. When the pivoting door 14 is rectangular with a pair of long sides and a pair of short sides, and the long sides are aligned in the up-down direction, the first distance t is set in accordance with the second distance h, the thickness a of the pivoting door 14, and the dimension b of the short sides. The pivoting door 14 is formed by processing a plate-shaped member. The thickness a of the pivoting door 14 is the thickness of the plate-shaped member that constitutes the pivoting door 14.

[0021] The first distance t can be approximated to the deflection of the beam, and can be set to satisfy the following formula (1).

[0022]

[0023] The above formula (1) is a formula for calculating the deflection of the beam. "t" in the above formula (1) is the first distance t. "h" in the above formula (1) is the second distance h. "F" in the above formula (1) is the average force applied to the pivoting door 14 by a person when closing the opening 20. "E" in the above formula (1) is the Young's modulus of the pivoting door 14. "a" in the above formula (1) is the thickness a of the pivoting door 14. "b" in the above formula (1) is the dimension b of the short side of the pivoting door 14.

[0024] Next, a user operation for transitioning the first locking mechanism 16 and the second locking mechanism 18 from the unlocked state to the locked state will be described.

[0025] When the first locking mechanism 16 and the second locking mechanism 18 are in an unlocked state, the pivoting door 14 is pivotable. First, the user pushes the pivoting door 14 to close the opening 20 of the housing 12 with the pivoting door 14 (see FIG. 1 ). Next, the user operates the first locking mechanism 16 to transition the first locking mechanism 16 from the unlocked state to the locked state.

[0026] Thereafter, the user operates the second locking mechanism 18 to transition the second locking mechanism 18 from the unlocked state to the locked state. Specifically, the user rotates the operating unit 26 to transition the position of the operating unit 26 from the unlocked position P2 to the locked position P1. In response to this rotation of the operating unit 26, as shown in FIG. 3 , the engaging member 30 rotates, and the position of the engaging member 30 transitions from the unlocked position P20 to the locked position P10. When the engaging member 30 is located at the locked position P10, it abuts against the locking surface LS of the locking member 32. In this state, the locking member 32 locks the engaging member 30. As a result, the second locking mechanism 18 effectively seals the housing 12.

[0027] Fig. 5 is a perspective view showing a second locking mechanism 100 according to a comparative example. In Fig. 5, components equivalent to those of the second locking mechanism 18 are assigned the same reference numerals. The second locking mechanism 100 has an engaging member 30 and a locking member 32. The locking member 32 of the second locking mechanism 100 does not have a protrusion 36. In this respect, the second locking mechanism 100 according to the comparative example differs from the second locking mechanism 18 according to this embodiment.

[0028] If the locking member 32 does not have the protrusion 36, when the pivot door 14 is closed with the locking member 30 in the locked position P10, the locking member 30 abuts against the base 34 of the locking member 32. When the locking member 30 abuts against the base 34, a gap GP is formed between the housing 12 and the pivot door 14, as shown in Fig. 6. In this state, if the first locking mechanism 16 can lock the pivot door 14 to the housing 12, the housing 12 will not be sealed.

[0029] In contrast, in the second locking mechanism 18 of this embodiment, the locking member 32 has a protrusion 36 that protrudes from the base 34 in the front-rear direction (first direction), which is the direction along the opening direction of the opening 20. Furthermore, the first distance t, which is the distance in the front-rear direction between the protruding end E1 of the protrusion 36 and the locking surface LS of the locking member 32, is set according to the second distance h, which is the distance in the up-down direction (second direction) between the first locking mechanism 16 and the second locking mechanism 18. Therefore, according to this embodiment, it is possible to reliably prevent the pivot door 14 from being locked to the housing 12 by the first locking mechanism 16 when the engaging member 30 abuts against the protruding end E1 of the protrusion 36. As a result, it is possible to reliably seal the housing 12.

[0030] Furthermore, when the pivoting door 14 is rectangular with a pair of long sides and a pair of short sides, and the long sides are aligned in the second direction, the first distance t is set in accordance with the second distance h, the thickness a of the pivoting door 14, and the dimension b of the short sides. This makes it possible to appropriately set the first distance t so that the first locking mechanism 16 cannot lock the pivoting door 14 to the housing 12 when the engaging member 32 abuts against the protruding end E1 of the protrusion 36.

[0031] In this embodiment, the first distance t satisfies the above formula (1), which allows the first distance t to be set more appropriately.

[0032] The following additional notes are further disclosed regarding the above embodiment.

[0033] (Note 1) A cabinet (10) of the present disclosure includes a pivotal door (14) capable of closing an opening (20) provided in a housing (12), a first locking mechanism (16) capable of locking the pivotal door to the housing, and a second locking mechanism (18) capable of locking the pivotal door to the housing, wherein the second locking mechanism includes an engaging member (30) that rotates in response to rotation of an operating unit (26) provided on the pivotal door, and a locking member (32) that is fixed to the housing and locks the engaging member, and the locking member locks the engaging member. and a protrusion (36) protruding from the base in a first direction that is a direction along the opening direction of the opening, the first locking mechanism and the second locking mechanism are arranged along a second direction that is a direction of the rotation axis (LN) of the pivoting door, and a first distance (t) that is a distance in the first direction between a protruding end (E1) of the protrusion and the locking surface is set according to a second distance (h) that is a distance in the second direction between the first locking mechanism and the second locking mechanism.

[0034] (Supplementary Note 2) In the cabinet described in Supplementary Note 1, the pivoting door may be rectangular having a pair of long sides and a pair of short sides, the long sides extending along the second direction, and the first distance may be set according to the second distance, a thickness (a) of the pivoting door, and a dimension (b) of the short sides.

[0035] (Appendix 3) The cabinet described in Appendix 2 may satisfy the following formula (1) when the first distance is t, the second distance is h, the average force applied to the pivot door by a person when closing the opening is F, the Young's modulus of the pivot door is E, the thickness is a, and the dimension of the short side is b.

[0036]

[0037] (Appendix 4) In the cabinet described in Appendix 1, the first distance may be a length that prevents the first locking mechanism from locking the pivot door to the housing when the engaging member abuts against the protruding end of the protruding portion.

[0038] Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible in these embodiments without departing from the gist of the present disclosure or the spirit of the present disclosure derived from the content of the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these. The same applies when numerical values ​​or mathematical expressions are used in the description of the above-described embodiments.

[0039] REFERENCE SIGNS LIST 10 Cabinet 12 Housing 14 Rotating door 16 First locking mechanism 18 Second locking mechanism 20 Opening 26 Operating portion 30 Engaging member 32 Locking member 34 Base 36 Projecting portion E1 Projecting end LN Rotation axis LS Locking surface

Claims

1. A cabinet comprising: a pivoting door capable of closing an opening provided in a housing; a first locking mechanism capable of locking the pivoting door to the housing; and a second locking mechanism capable of locking the pivoting door to the housing, wherein the second locking mechanism comprises an engaging member that rotates in response to rotation of an operating unit provided on the pivoting door, and a locking member that is fixed to the housing and locks the engaging member, wherein the locking member comprises a base having a locking surface that locks the engaging member, and a protrusion that protrudes from the base in a first direction that is a direction along the opening direction of the opening, wherein the first locking mechanism and the second locking mechanism are arranged along a second direction that is the direction of the pivot axis of the pivoting door, and a first distance that is the distance in the first direction between the protruding end of the protrusion and the locking surface is set according to a second distance that is the distance between the first locking mechanism and the second locking mechanism in the second direction.

2. A cabinet according to claim 1, wherein the pivoting door is rectangular with a pair of long sides and a pair of short sides, the long sides are aligned with the second direction, and the first distance is set in accordance with the second distance, the thickness of the pivoting door, and the dimensions of the short sides.

3. A cabinet according to claim 2, which satisfies the following formula (1) when the first distance is t, the second distance is h, the average force applied to the pivot door by a person when closing the opening is F, the Young's modulus of the pivot door is E, the thickness is a, and the dimension of the short side is b.

4. A cabinet according to claim 1, wherein the first distance is a length that prevents the first locking mechanism from locking the pivot door to the housing when the engaging member abuts against the protruding end of the protruding portion.

Images