Door locking member for electrical / electronic device storage box

Abstract

To provide a door locking member of a box for housing an electric and electronic apparatus suppressing free locking due to an external force, while suppressing labor of operation.SOLUTION: A door locking member 1 of a box for housing an electric and electronic apparatus has a locking part 19 capable of making a door locked by rotatably inserting the same to an insertion hole part 40 formed on a reception member 4, a handle part 12 capable of moving the locking part from a locked position to an unlocked position by performing rotation operation and making the same erected from a state of being horizontally brought down with respect to a body part 11, and a regulation part 13 regulating movement of the handle part in the state of being horizontally brought down between a locking maintain position where the handle part is located when the handle part is horizontally brought down in a state where the locking part is in the locked position and an unlocking maintain position where the handle part is located when the handle part is horizontally brought down in a state where the locking part is in the unlocked position.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a door locking member used to lock a door of a box for storing electric / electronic equipment. [Background technology]

[0002] Panels such as distribution boards and switchboards are provided with an inner door on the inside to prevent direct contact with live parts. Workers open or remove the inner door only when inspecting or repairing the interior. The inner door used in this way is locked by an inner door locking member, which is required to be able to be easily engaged and disengaged, and to be able to be securely locked when locked. To satisfy this requirement, devices such as those described in Patent Document 1 and Patent Document 2 have been proposed that can securely fix the inner door and can be opened and closed with a single touch. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-49400 A [Patent Document 2] JP 2005-183809 A

[0004] However, in the screw type as in Patent Document 1, the screws must be attached and removed manually, which is inefficient. Also, in the structure in which the hook is released from the locked part by raising the lever as in Patent Document 2, when pressure is applied to the middle door in the closing direction, the hook moves to a position where it is locked to the locked part. For this reason, even if the lever is raised to release the lock in order to open the middle door while a large distribution board is laid down, the weight of the middle door may cause it to automatically return to the locked state when the hand is released. Summary of the Invention [Problem to be solved by the invention]

[0005] The inventor of the present invention has thoroughly investigated this issue and attempted to solve it. The problem that the present invention aims to solve is to provide a door locking member for a box for storing electric and electronic equipment that reduces the amount of work required for operation and prevents the door from being accidentally locked due to the influence of external forces. [Means for solving the problem]

[0006] In order to solve the above problems, a door locking member for a box for storing electrical and electronic equipment is provided which includes a locking section that can be inserted into an insertion hole formed in a receiving member and rotated to lock the door, a handle section that can be moved from a locked position to an unlocked position by a rotation operation and can be raised from a tilted position relative to the main body section, and a regulating section that prevents the handle section from moving in a tilted position between the locked position where the handle section is located when the handle section is tilted with the locking section in the locked position, and the unlocked position where the handle section is located when the handle section is tilted with the locking section in the unlocked position.

[0007] It is also preferable to provide a spring portion that biases the handle portion in a direction that tilts the handle portion relative to the main body portion.

[0008] In addition, it is preferable that the main body is configured so that an indicator showing the locked state is formed at a position where the handle portion can be tilted.

[0009] Moreover, it is preferable that the handle portion has a through hole at a position that faces the display portion when the handle portion is tilted over.

[0010] In addition, when the handle portion is moved from an upright position to a tilted position, it is preferable that the surface of the regulating portion is provided with an inclined portion that can guide the movement of the handle portion toward either the locked position or the unlocked position. Effect of the Invention

[0011] The present invention makes it possible to provide a door locking member for an electric / electronic device storage box that reduces the amount of work required for operation and prevents the door from being accidentally locked due to the influence of external forces. [Brief description of the drawings]

[0012] [Figure 1] 1 is a front view of a board to which a middle door locking member is attached in an embodiment, with the outer door being in an open state. [Diagram 2] 1 is a perspective view of an inner door locking member and a receiving member that can be locked by the inner door locking member in an embodiment, with the locking portion in the unlocked position and the handle portion raised. [Diagram 3] 1 is a perspective view of an inner door locking member and a receiving member that can be locked by the inner door locking member in an embodiment, with the locking portion in the unlocked position and the handle portion in the unlocked maintaining position; [Figure 4] 1 is a perspective view of an inner door locking member and a receiving member that can be locked by the inner door locking member in an embodiment, with the locking portion in the locked position and the handle portion raised. [Diagram 5] 1 is a perspective view of an inner door locking member and a receiving member that can be locked by the inner door locking member in an embodiment, with the locking portion in a locked position and the handle portion in a tilted position to maintain the locking state; [Figure 6] 13 is a cross-sectional view showing the inner door in a locked state by the receiving member and the inner door locking member. FIG. [Figure 7] 1 is a perspective view of a middle door locking member, with a partial cross section shown so that a spring portion can be seen. [Figure 8] FIG. 13 is a side view of a modified inner door locking member. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The following describes an embodiment of the invention. As can be understood from Figs. 1 to 6, the door locking member 1 of this embodiment is provided in a box for storing electric and electronic equipment, and includes a locking portion 19 that can be inserted into an insertion hole 40 formed in a receiving member 4 and rotated to lock a middle door 83. The locking portion 19 can be moved from a locked position to an unlocked position by rotating the locking portion 19, and includes a handle portion 12 that can be raised from a tilted position relative to a main body portion 11. The locking portion 19 is also provided with a restricting portion 13 that restricts the handle portion 12 from moving in a tilted state between a locked position where the handle portion 12 is located when the handle portion 12 is tilted with the locking portion 19 in the locked position and an unlocked position where the handle portion 12 is located when the handle portion 12 is tilted with the locking portion 19 in the unlocked position. This makes it possible to provide a door locking member 1 that is inhibited from being automatically locked due to the influence of an external force while reducing the effort required for operation. More specifically, if the handle portion 12 is tilted down, it is possible to prevent the locking portion 19 from moving from the unlocked position to the locked position even if an external force is suddenly applied. Also, by being able to keep the handle portion 12 in a tilted state, it is possible to reduce the size of the door locking member 1. Of course, even if a force is applied in the direction of closing the middle door 83 due to gravity with the board 8 in a tilted state, it is possible to prevent the middle door 83 from accidentally becoming locked.

[0014] The door locking member 1 of the embodiment is attached above and below a middle door 83 of a board 8, as shown in Fig. 1. The middle door 83 is rotatably supported by a board body 81 of the board 8, and by using the door locking member 1, the middle door 83 can be kept closed except when necessary. An outer door 82, which is part of the exterior of the board 8, is also rotatably attached to the board body 81. When this outer door 82 is closed, it does not come into contact with the door locking member 1.

[0015] The door locking member 1 includes a main body portion 11, a handle portion 12 movable relative to the main body portion 11, and a locking portion 19 capable of locking with the receiving member 4. The handle portion 12 is located on the front surface side of the middle door 83, and by operating the handle portion 12, the locking portion 19 located on the back surface side of the middle door 83 can be moved. To make this possible, the handle portion 12 is provided on one end side of a first shaft portion 18, and the locking portion 19 is provided on the other end side, so that the locking portion 19 can be moved by moving the handle portion 12 to rotate the first shaft portion 18.

[0016] In the embodiment, the locking portion 19 is a portion that protrudes radially outward from the first shaft portion 18, and the two locking portions 19 are configured to extend in opposite directions relative to the rotation center of the first shaft portion 18. For this reason, the insertion hole portion 40 provided on the receiving member 4 side is configured such that a notch portion 42 into which the locking portion 19 can be inserted extends from a round hole portion 41 into which the first shaft portion 18 can be inserted.

[0017] Incidentally, in the door locking member 1 of the embodiment, the locking portion 19 can be moved from the locked position to the unlocked position by rotating the handle portion 12. It is also possible to move it from the unlocked position to the locked position. When the handle portion 12 is rotated by about 90 degrees with the locking portion 19 inserted into the insertion hole portion 40, the locking portion 19 is moved from the unlocked position to the locked position, so that the locking portion 19 is positioned inside the receiving member 4, and the receiving member 4 and the door locking member 1 cannot be separated. Even if the locking portion 19 is inserted into the insertion hole portion 40, if the locking portion 19 is in the unlocked position, the lock is not applied, so that the middle door 83 can be opened and closed freely.

[0018] Incidentally, the handle portion 12 of the embodiment can be raised from a tilted state relative to the main body portion 11. With the handle portion 12 in the tilted state, the locking portion 19 cannot be moved from the locked position to the unlocked position. Also, the locking portion 19 cannot be moved from the unlocked position to the locked position. To make this possible, the embodiment includes a restricting portion 13 that restricts the handle portion 12 from moving in a tilted state between the locked position where the handle portion 12 is located when the handle portion 12 is tilted with the locking portion 19 in the locked position and the unlocked position where the handle portion 12 is located when the handle portion 12 is tilted with the locking portion 19 in the unlocked position. The restricting portion 13 of the embodiment is provided on the main body portion 11.

[0019] In order to move the locking portion 19 from the locked position to the unlocked position or from the unlocked position to the locked position, the handle portion 12 is raised and operated. As can be seen from this, the operation of raising the handle portion 12 is required to switch the locking portion 19 between the locked position and the unlocked position, so that it is possible to prevent the locking portion 19 from switching from the unlocked position to the locked position unintentionally. Note that the handle portion 12 in the embodiment can be raised or lowered around the second shaft portion 21 provided on the main body portion 11 as a rotation center.

[0020] As can be seen from Fig. 7, in the embodiment, the spring portion 14 is provided to bias the handle portion 12 in a direction to tilt the handle portion 12 relative to the main body portion 11. This makes it possible to prevent the handle portion 12 from rising up on its own. Even if the handle portion 12 is released from the hand while it is in the raised state, the force of the spring portion 14 can cause the handle portion 12 to be in a tilted state, so that the handle portion 12 can be prevented from rotating between the locked position and the unlocked position even if the person does not perform an action to tilt the handle portion 12.

[0021] 8 includes an inclined portion 17 that can guide the movement of the handle portion 12 toward either the locked position or the unlocked position when the handle portion 12 is tilted from an upright position to a tilted position. Therefore, even if the handle portion 12 is tilted between the locked position and the unlocked position, it can be guided to either the locked position or the unlocked position.

[0022] Incidentally, the main body 11 of the embodiment has an indicator 15 for indicating the locked state formed at the position where the handle 12 can be tilted. This makes it easier to determine whether the engaging portion 19 is in the locked position or the unlocked position.

[0023] The display unit 15 may be displayed in different colors to make it easier to tell whether the locking unit 19 is in the locked position or the unlocked position. Also, letters such as "open" and "closed" may be displayed. By providing the display unit 15 at the end where the handle unit 12 is tilted, it is possible to clearly tell whether the locking unit 19 is in the locked position or the unlocked position.

[0024] Moreover, the handle portion 12 of the embodiment is configured to have a through hole portion 16 at a position facing the display portion 15 when the handle portion 12 is tilted down. Therefore, it is possible to visually confirm the display portion 15 when the handle portion 12 is tilted down.

[0025] Although the present invention has been described above by taking the embodiment as an example, the present invention is not limited to the above embodiment and can be modified in various ways. For example, the rotation angle for moving the locking part from the locked position to the unlocked position does not have to be 90 degrees. However, it is preferable that the rotation angle be within 180 degrees.

[0026] In the embodiment, the handle portion is configured so that when the handle portion is tilted down, it is positioned between one surface of the main body portion and the middle door, but this does not have to be the case.

[0027] Further, although the door locking member in the embodiment is for locking the inner door, it may be for locking other doors. [Explanation of symbols]

[0028] 1 Door locking member 4 Supporting member 11 Main body 12 Handle section 13 Regulatory Department 14 Spring section 15 Display 16 Through hole 17 Slope 18 First shaft part 19 Locking part 40 Insertion hole 83 Middle Door

Claims

1. a locking portion that can be inserted into an insertion hole formed in the receiving member and rotated to lock the door; A handle portion that can move the locking portion from a locked position to an unlocked position by rotating the handle portion and can be raised from a tilted position relative to the main body portion; A door locking member for an electrical / electronic device storage box is provided with a restricting portion that restricts the handle portion from moving in a tilted position between a locked position where the handle portion is positioned when the handle portion is tilted with the locking portion in the locked position and an unlocked position where the handle portion is positioned when the handle portion is tilted with the locking portion in the unlocked position.

2. 2. The door locking member for an electric / electronic device storage box according to claim 1, further comprising a spring portion for biasing the handle portion in a direction in which the handle portion is tilted relative to the main body portion.

3. 3. The door locking member for an electric / electronic device storage box according to claim 1, wherein the main body has an indicator for indicating a locked state at a position where the handle can be tilted down.

4. 4. The door locking member for an electric / electronic device storage box according to claim 3, wherein the handle portion has a through hole at a position facing the display portion when the box is folded down.

5. A door locking member for an electrical / electronic device storage box as described in any one of claims 1 to 4, wherein the surface of the regulating part is provided with an inclined portion capable of guiding the movement of the handle part toward either the locked position or the unlocked position when the handle part is moved from an upright position to a laid-down position.

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