JP5950445B2 - Containment structure - Google Patents

Description

  The present invention relates to a housing structure that houses a work object in a recess.

2. Description of the Related Art Conventionally, in power facilities and the like, for example, a device as shown in Patent Document 1 has been devised in order to prevent erroneous operation of a work target and ensure safety.
That is, in Patent Document 1, a recess that is recessed from a flat outer surface (plate surface) is formed in a housing (operation panel), and a work target (operation switch) is installed on the bottom surface of the recess, The housing structure is described in which the upper opening is covered with a cover member. The cover member is pivotally attached to the housing by a hinge, and the upper opening of the recess can be opened and closed only by the pivoting operation of the cover member.

JP 2007-188705 A

However, in the above-described conventional configuration, since the recess opens only on one flat outer surface (one surface), it is difficult for the operator to insert the hand into the recess, and as a result, it becomes difficult to operate the work target. There is a case. That is, there is a problem that workability for operating the work target is low.
Moreover, since the upper opening of the recess is opened and closed by only one operation of the cover member, when an unexpected external force acts on the cover member, the cover member may move and the upper opening of the recess may be opened. . In this case, there is a possibility that an erroneous operation of the work target may occur.

  The present invention has been made in view of the above-described circumstances, and can improve the workability of the work object disposed in the recess, and the cover member that covers the recess moves unexpectedly and the recess opens. It is an object of the present invention to provide a housing structure that can prevent the above-mentioned situation.

In order to solve this problem, the storage structure of the present invention is a storage structure for a work target in which a work target is provided in a recess formed in a housing and the opening of the recess is freely opened and closed by a cover member. The recess is open to two flat outer surfaces that are adjacent to each other and are inclined in different directions, and the cover member covers a first opening of the recess that opens to the first outer surface; A second cover portion covering the second opening of the recess that opens to the second outer surface, and the first cover portion has an angle between the first outer surface and the second outer surface along the first outer surface. The first cover portion is arranged so as to be linearly movable in one direction approaching and separating from the portion, the first opening can be opened and closed, and the second cover portion is disposed at a position covering the first opening. Of these, the first end located at the corner is rotatably connected to the first end. In a state where the opening can be freely opened and closed, and the second cover part is disposed at a position covering the second opening, the linear movement of the first cover part from the position covering the first opening to the opening position is restricted, In a state where the second cover portion is arranged at a position where the second opening is opened, the first cover portion is allowed to move linearly from a position covering the first opening to a position where the second opening is opened. A locking member that locks the first cover portion disposed at a position to open the first opening is provided .
In this configuration, the locking member may be set so that the first cover portion is locked with a predetermined force.

In the housing structure, in a state where the opening of the recess is completely covered by the cover member, the first cover portion and the second cover portion cover the first opening and the second opening of the recess, respectively. In order to completely open the recess opening from this state, first, the second cover part is rotated from the position covering the second opening to the opening position, and then the first cover is moved from the position covering the first opening to the opening position. One cover part needs to be moved linearly. For this reason, even if an unexpected external force acts on the cover member in a state where the opening of the recess is completely covered, only the second cover part rotates, and the opening of the recess is completely opened. Can be surely prevented. Therefore, it is possible to reliably prevent an erroneous operation of the work target placed in the recess.
In addition, in such a state where the opening of the recess is completely opened, since the recess is opened on two adjacent outer surfaces, a hand can be easily inserted into the recess to easily operate the work target. Can be done. That is, it is possible to improve workability for operating the work target.
Moreover, in this structure, unless the force more than predetermined acts on the 1st cover part distribute | arranged to the position which opens 1st opening, the 1st opening of a recess is not covered. In other words, it is possible to more reliably prevent the first opening of the recess from being unintentionally closed.
In addition, since the first cover portion can be reliably prevented from moving unexpectedly due to gravity depending on the direction of the first opening in the recess, the direction of the first opening in the recess can be arbitrarily set.

And in the said accommodation structure, it is good for the said housing | casing to be provided with the latching member which latches the said 2nd cover part distribute | arranged to the position which covers said 2nd opening .
Na us, in this configuration, the second cover portion may be set the locking member configured to be locked at a predetermined force.

In this configuration, the second opening of the recess is not opened unless a force of a predetermined level or more is applied to the second cover portion disposed at a position covering the second opening. In other words, the second opening of the recess can be more reliably prevented from opening unintentionally.
Further, the second opening of the orientation of the recess, the second cover part because it can be reliably prevented from moving inadvertently by gravity, it is possible to set the orientation of the second opening of the recess as desired.

Furthermore, in the housing structure, a pair of raceway grooves that extend in the one direction and open to the second outer surface are formed on the inner surface of the recess that forms an edge of the first opening,
The first cover portion is slidable in the extending direction of the track groove by inserting both side portions thereof into the track grooves,
In a state where the first cover portion is arranged at a position covering the first opening and the second cover portion is arranged at a position opening the second opening, both side portions of the second cover portion are each track groove. It is good that it can be inserted into.

In the above configuration, the first cover portion is disposed at a position covering the first opening and the second cover portion is disposed at the position opening the second opening, from the position covering the first opening toward the position opening. When the first cover portion is linearly moved, both side portions of the second cover portion are inserted into the raceway grooves, and the second cover portion slides in the extending direction of the raceway groove like the first cover portion.
Then, in a state where both side portions of the second cover portion are inserted into the raceway grooves, the rotation of the second cover portion with respect to the first cover portion is restricted by the raceway grooves, so that the first cover portion and the second cover portion It is possible to smoothly open and close the first opening by the cover member.
In addition, in a state where both side portions of the first cover portion and the second cover portion are inserted into the raceway grooves, the first cover portion and the second cover portion are arranged along the first outer surface, so that the first outer surface Even if the upper space is narrow, the first opening of the recess can be easily opened and closed.

  Further, in the housing structure, the proximal end portion of the second cover portion connected to the first cover portion is in contact with the second outer surface in a state of being disposed at a position covering the second opening. It is preferable that an inclined guide surface that is inclined with respect to the contact surface is formed so as to gradually move away from the second outer surface from the contact surface toward the proximal end of the second cover portion.

In the above configuration, when the second cover part is rotated from the position covering the second opening to the opening position, the entire second cover part includes the first outer surface (or the inner surface of the track groove adjacent to the second outer surface). Even if the second cover part is not rotated so as to be positioned above the plane, the first cover part can be easily linearly moved from the position covering the first opening to the opening position.
Specifically, in a state where a part of the second cover portion disposed at the position where the second opening is opened is positioned below the virtual plane, the first cover is opened toward the position where the first opening is opened. When the cover portion is linearly moved, the inclined guide surface of the second cover portion comes into contact with the corner portion (case corner portion) between the second outer surface and the first outer surface (or the inner surface of the raceway groove). When the first cover portion is further linearly moved from this contact state, the force for moving the first cover portion by the inclined guide surface is converted to the force for rotating the second cover portion upward from below the virtual plane. The second cover portion rotates until the entire second cover portion is positioned above the virtual plane. As a result, the first cover part can be linearly moved to the first opening position.
From the above, it is possible to easily perform the moving operation of the cover member that opens the opening of the recess.

In the housing structure, when the work target is a connection terminal electrically connected to a power supply source by wiring, the linear movement of the first cover portion from a position covering the first opening to a position opening. In conjunction with the first changeover switch for switching the wiring from the conductive state to the non-conductive state, and in conjunction with the rotation of the second cover portion from the position covering the second opening to the opening position, the wiring A second changeover switch for switching from the conductive state to the non-conductive state may be provided.
Note that in the above structure, a power receiving device such as a storage battery or a load device or an electrical component such as a fuse can be connected to the connection terminal. Thereby, electric power can be supplied to a power receiving apparatus or an electrical component from a power supply source such as a power supply apparatus or a storage battery via a connection terminal.

In the above configuration, only when the opening of the recess is completely closed, the wiring is made conductive by the two changeover switches, and the power supply source and the connection terminal are electrically connected by the wiring. Can be reliably prevented from accidentally touching the connection terminal. That is, it is possible to reliably prevent an electric shock accident from occurring.
Also, in the state where the recess is fully open, even if one switch switches the wiring to a conductive state, for example, when the operator's hand touches one switch, the other switch does not connect the wiring. Since the conductive state is maintained, the power supply source and the connection terminal are not electrically connected. Therefore, it is possible to reliably prevent discharge (occurrence of hot-line insertion / extraction) between the connection terminal and the power receiving device or electrical component when the power receiving device or electrical component is attached to or detached from the connection terminal. That is, it is possible to reliably and safely implement the attachment / detachment of the power receiving device and the electrical component to / from the connection terminal.

According to the present invention, it is possible to improve the workability of the work object disposed in the recess, and to prevent the recess from opening due to the cover member covering the recess being moved unexpectedly.
In addition, when the work object placed in the recess is a connection terminal, the voltage of the power supply source is applied to the connection terminal only when the opening of the recess is completely closed. Can be reliably prevented.

FIG. 6 is a perspective view showing a housing structure according to an embodiment of the present invention, in which the opening of the recess is completely covered by the cover member. In the accommodation structure shown in FIG. 1, it is the schematic which shows an example of the circuit structure containing the connecting terminal accommodated in a recess. In the accommodation structure shown in FIG. 1, it is a perspective view which shows the state after the 2nd cover part rotated from the 2nd closed position to the 2nd opening position. FIG. 4 is a perspective view showing a state after the first cover portion linearly moves from the first closed position to the first opening position in the housing structure shown in FIG. 3. FIG. 3 is an enlarged cross-sectional view of a main part showing a connecting portion between a first cover part and a second cover part in the housing structure shown in FIG. 1. FIG. 4 is an enlarged cross-sectional view of a main part showing a connecting portion between a first cover part and a second cover part in the housing structure shown in FIG. 3.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1, 3, and 4, the housing structure 1 according to the present embodiment is provided with a connection terminal (work object) 4 in a recess 3 formed in the housing 2 and an opening of the recess 3. The cover member 5 can be opened and closed.
For example, as shown in FIG. 2, the connection terminal 4 in the present embodiment is electrically connected to a power supply source 6 such as a power supply device or a storage battery by a power supply side wiring (wiring) 8. A power receiving side wiring (wiring) 9 of a power receiving device 7 such as a storage battery or a load device is detachably connected to the connection terminal 4. In a state where the power receiving side wiring 9 is connected to the connection terminal 4, it is possible to supply power from the power supply source 6 to the power receiving device 7 via the connection terminal 4.

Further, the circuit configuration is provided with two change-over switches SW1 and SW2 for switching between the conduction / non-conduction state of the power supply side wiring 8. These two changeover switches SW1 and SW2 are electrically connected to the power supply source 6 and the connection terminal 4 only when both of the two changeover switches SW1 and SW2 are turned on. In a state where one of them is OFF, the power supply source 6 and the connection terminal 4 are provided so as not to be electrically connected.
The two change-over switches SW1 and SW2 may be disconnectors provided in series with the power supply side wiring 8, as shown in FIG. 2, but are not limited thereto. The two change-over switches SW1 and SW2 may be control switches that control the operation of one disconnector (for example, a relay or the like) provided in the power supply side wiring 8, for example.
In the circuit configuration described above, the power supply side wiring 8 and the changeover switches SW1, SW2 are provided in the housing 2 shown in FIG. On the other hand, the power supply source 6 may be provided, for example, inside the housing 2 and always connected to the power supply side wiring 8. Similarly to the power receiving device 7, the power supply source 6 may be connected to the power supply side wiring 8 by a separate connection terminal. And may be detachably connected.

As shown in FIGS. 1, 3, and 4, the recess 3 formed in the housing 2 is formed so as to open to two flat outer surfaces 2 a and 2 b that are adjacent to each other and orthogonal to each other. In other words, the recess 3 opens at the corners of the two outer surfaces 2a and 2b.
In the present embodiment, the first opening 3A of the recess 3 that opens to the first outer surface 2a of the housing 2 and the second opening 3B of the recess 3 that opens to the second outer surface 2b are each rectangular in plan view. Formed and connected to each other. The width dimensions of the first opening 3A and the second opening 3B along the longitudinal direction (C direction) of the corners of the two outer surfaces 2a and 2b are set to be equal to each other.

A pair of raceway grooves 14 are formed on the inner surface 11 of the recess 3 that forms the edge of the first opening 3A (two surfaces orthogonal to the first outer surface 2a and the second outer surface 2b among the inner surfaces of the recess 3). Is formed. Each raceway groove 14 extends in one direction (AB direction) along the first outer surface 2a so as to be close to and away from the corners of the first outer surface 2a and the second outer surface 2b. One end in the extending direction of each raceway groove 14 opens to the second outer surface 2b.
Further, the second bottom surface 13 of the recess 3 forming the edge of the first opening 3A (the inner surface of the recess 3 positioned so as to be recessed from the second outer surface 2b and parallel to the second outer surface 2b) includes the recess 3 and An insertion slit 15 for communicating with the inside of the housing 2 is formed. This insertion slit 15 plays the role which penetrates a part (first cover part 20) of the cover member 5 mentioned later. The insertion slit 15 is open at the other end in the extending direction of each track groove 14 described above.

  The connection terminal 4 provided in the recess 3 having the above-described configuration is configured as a terminal block for connecting a plurality of power-receiving-side wirings 9 (see FIG. 2) one by one with screws, and is recessed from the first outer surface 2a. It is being fixed to the 1st bottom face 12 (surface parallel to the 1st outer surface 2a among the inner surfaces of the recess 3) of the recess 3 located. The power supply side wiring 8 (see FIG. 2) connected to the connection terminal 4 is provided inside the housing 2.

  The cover member 5 includes a first cover portion 20 that covers the first opening 3A of the recess 3 and a second cover portion 30 that covers the second opening 3B. The first cover part 20 and the second cover part 30 are formed in a plate shape having a rectangular shape in plan view corresponding to the first opening 3A and the second opening 3B, respectively. In the present embodiment, the first cover portion 20 and the second cover portion 30 are formed of a resin material having a high light transmittance such as acrylic so that the connection terminal 4 in the recess 3 can be easily seen from the outside. However, the present invention is not limited to this and may be formed of any material.

The first cover portion 20 is linearly movable in one direction (AB direction) that is close to and away from the corner portions of the first outer surface 2a and the second outer surface 2b along the first outer surface 2a. The first opening 3A is openable and closable.
Specifically, both side portions of the first cover portion 20 are inserted into the raceway grooves 14, whereby the first cover portion 20 is slidable in the extending direction (AB direction) of the raceway groove 14. It has become. Further, the first cover portion 20 is arranged in a direction (A direction) from one end side to the other end side in the extending direction of the raceway groove 14 from a state where the first cover portion 20 is disposed at a position covering the first opening 3A (first closing position 20A). A position that enters the inside of the housing 2 through the insertion slit 15 and opens the first opening 3A (first opening position 20B) by linearly moving in the direction away from the corners of the first outer surface 2a and the second outer surface 2b. Arranged.

The first cover portion 20 can be linearly moved only between the first closing position 20A and the first opening position 20B, and movement exceeding this range is the restriction portions 16 and 17 formed in the housing 2. Is regulated by.
That is, the 1st control part 16 which contact | abuts the both sides of the 1st cover part 20 distribute | arranged to 20 A of 1st obstruction | occlusion positions is formed in the one end side of the extension direction of each track groove 14. FIG. Accordingly, the first cover portion 20 is restricted from moving in the direction (B direction) that exits from the first closed position 20A to the outside of the housing 2. In other words, the first restricting portion 16 prevents the first cover portion 20 from falling off from one end of the raceway groove 14.
On the other hand, a second restricting portion 17 that abuts on the first cover portion 20 disposed at the first opening position 20B is formed inside the housing 2. That is, the first cover portion 20 is restricted by the second restricting portion 17 from moving in the direction (A direction) from the first opening position 20 </ b> B into the housing 2.

  Further, the second restricting portion 17 is provided with a first locking member (locking member) 18 that locks the first cover portion 20 disposed at the first opening position 20B. In the present embodiment, the first locking member 18 is made of a magnet, and a portion of the first cover portion 20 that contacts the first locking member 18 is made of a magnetic material (such as iron) that is attracted to the magnet by a magnetic force. Stop portion) 21 is provided. For this reason, in the state where the first cover part 20 is arranged at the first opening position 20B, the magnetic body 21 of the first cover part 20 is attracted to the first locking member 18 on the housing 2 side by a magnetic force, The first cover part 20 is held at the first opening position 20B. In addition, since the 1st cover part 20 is latched by the 1st latching member 18 with the magnetic force (predetermined force) of predetermined magnitude | size, if it is more than predetermined force, the 1st cover part 20 will be 1st It is possible to linearly move from the opening position 20B toward the first closing position 20A.

Of the first cover part 20 disposed at the first closing position 20A, the second cover part 30 is centered on an axis along the longitudinal direction (C direction) of the corners of the two outer surfaces 2a and 2b by the hinge 40. The two outer surfaces 2a and 2b are rotatably connected to one end located at the corners. Thereby, the 2nd cover part 30 can open and close the 2nd opening 3B of the recess 3 by rotating to the DE direction in the state in which the 1st cover part 20 was distribute | arranged to 20 A of 1st obstruction | occlusion positions.
In a state where the second cover portion 30 is disposed at a position (second closed position 30A) covering the second opening 3B, the peripheral portion of the main surface of the second cover portion 30 facing the second opening 3B is the housing 2. Of the second outer surface 2b is in contact with the peripheral portion of the second opening 3B. In the present embodiment, since the two outer surfaces 2a and 2b of the housing 2 are orthogonal to each other, the angle θ1 of the second cover part 30 with respect to the first cover part 20 is 90 degrees as shown in FIG. Become.
Further, in the state where the second cover part 30 is arranged at the second closing position 30A, the main surface of the second cover part 30 abuts on the second outer surface 2b, and therefore, from the first closing position 20A to the first opening position 20B. The linear movement (movement in the A direction) of the first cover portion 20 is restricted.

And the 2nd cover part 30 is rotated in the direction (D direction) away from the 2nd outer surface 2b from the state distribute | arranged to the 2nd obstruction | occlusion position 30A, as shown to FIG. It arrange | positions in the position (2nd opening position 30B) which opens the 2 opening 3B.
In the state where the second cover part 30 is arranged at the second opening position 30B and the first cover part 20 is arranged at the first closing position 20A, that is, only the second opening 3B is open, The operator's finger cannot be inserted into the recess 3, or the connection terminal 4 cannot be reached even if the operator's finger is inserted into the recess 3. In other words, the size of the second opening 3B and the arrangement of the connection terminals 4 are such that the operator's fingers cannot be inserted into the recess 3 only from the second opening 3B, or the operator's fingers are inserted into the recess 3. Even if it is done, it is set so as not to reach the connection terminal 4.

In the state where the second cover part 30 is arranged at the second opening position 30B, the second cover part 30 is accompanied by the linear movement of the first cover part 20 from the first closing position 20A toward the first opening position 20B. It is possible to insert both sides of each into the track grooves 14 (see FIGS. 3 and 4). Therefore, in a state where the second cover part 30 is arranged at the second opening position 30B, linear movement (movement in the A direction) of the first cover part 20 from the first closing position 20A to the first opening position 20B is allowed. Has been.
The second opening position 30B of the second cover part 30 shown in FIG. 3 is a position obtained by rotating the second cover part 30 by 90 degrees in the D direction from the second closing position 30A. Any position where linear movement of the first cover portion 20 from the closed position 20A to the first opening position 20B is allowed is acceptable. That is, the second opening position 30B is, for example, a position (see FIGS. 5 and 6) obtained by rotating the second cover 30 from the second closing position 30A in the D direction at an angle of 90 degrees or less, or 90 degrees in the D direction. The position rotated by a larger angle is also included.

As shown in FIGS. 1, 3, and 4, the second cover portion 30 is provided at the distal end portion of the second cover portion 30 opposite to the base end portion connected to one end portion of the first cover portion 20. An insertion hole 31 penetrating in the thickness direction is formed. The insertion hole 31 plays a role of inserting the power receiving side wiring 9 connected to the connection terminal 4 in the recess 3 into and out of the recess 3.
The insertion hole 31 opens at the tip of the second cover part 30 in the periphery of the main surface of the second cover part 30. In other words, the insertion hole 31 is formed so as to be recessed inward from the distal end portion of the second cover portion 30 in the peripheral edge of the main surface of the second cover portion 30. For this reason, even if the power receiving side wiring 9 connected to the connection terminal 4 extends from the inside of the recess 3 to the outside, the power receiving side wiring 9 inhibits the rotation of the second cover portion 30 that opens and closes the second opening 3B. Can be prevented.
In addition, since the size of the insertion hole 31 is smaller than the second opening 3B described above, in a state where the second cover portion 30 is arranged at the second closing position 30A, the power receiving connected to the connection terminal 4 in the recess 3 is performed. Although the side wiring 9 can be inserted into the insertion hole 31, the operator's finger cannot be inserted into the recess 3 from the insertion hole 31, or even if the operator's finger is inserted into the recess 3 from the insertion hole 31. The terminal 4 is never reached.

  Further, the second cover portion 30 is provided with a grip portion 32 for an operator to operate the cover member 5. The grip portion 32 protrudes from the second cover portion 30 so as to be separated from the second outer surface 2b in a state where the second cover portion 30 is arranged at the second closing position 30A. Note that the gripping portion 32 in the illustrated example has a rod-like member bent in a C shape and both ends thereof are fixed to the second cover portion 30, but the shape and size of the gripping portion 32 are arbitrary. It's okay.

  Further, as shown in FIG. 5, an inclined guide surface 34 is formed at the proximal end portion of the second cover portion 30 connected to one end portion of the first cover portion 20. The inclined guide surface 34 extends from the peripheral edge portion (contact surface 33) of the main surface of the second cover portion 30 that contacts the second outer surface 2b in a state of being arranged at the second closing position 30A. It inclines with respect to the contact surface 33 so that it may gradually separate from the 2nd outer surface 2b as it goes to an end. In the present embodiment, the boundary between the contact surface 33 and the inclined guide surface 34 is adjacent to the second outer surface 2b in the state where the second cover portion 30 is disposed at the second closing position 30A. It is located below the virtual plane P1 including the inner surface 14a of the raceway groove 14 parallel to 2a, and a part of the inclined guide surface 34 is located above the virtual plane P1.

As shown in FIGS. 1, 3, and 4, the second cover portion 30 configured as described above has a second locking member (engagement) provided in the housing 2 in a state of being disposed at the second closing position 30 </ b> A. (Stopping member) 19.
More specifically, the second locking member 19 is made of the same magnet as the first locking member 18, and is formed on the inner surface 11 of the recess 3 that forms the edge of the second opening 3 </ b> B in the housing 2. Is provided. On the other hand, a portion of the second cover portion 30 that contacts the second locking member 19 is provided with a magnetic body (locked portion) 35 such as iron that is attracted to the magnet by magnetic force. For this reason, in the state where the second cover part 30 is disposed at the second closing position 30A, the magnetic body 35 of the second cover part 30 is attracted to the second locking member 19 by a magnetic force, so that the second cover part 30 Is held at the second closing position 30A. In addition, since the 2nd cover part 30 is latched by the 2nd latching member 19 with the magnetic force (predetermined force) of predetermined magnitude | size, if it is more than predetermined force, the 2nd cover part 30 will be 2nd. It is possible to rotate from the closing position 30A toward the second opening position 30B.

With respect to the cover member 5 configured as described above, the first changeover switch SW1 having the circuit configuration of the present embodiment is disposed in the middle of the movement path of the first cover portion 20 in the housing 2. The first change-over switch SW1 of the present embodiment is a kind of push switch. The power supply side wiring 8 is brought into a non-conduction state (OFF state) when pressed down by an external force, and the power supply side wiring 8 is turned off when not pressed down. It is comprised so that it may be set as a conduction | electrical_connection state (ON state).
The first changeover switch SW1 switches the power supply side wiring 8 from the conductive state to the nonconductive state in conjunction with the linear movement of the first cover portion 20 from the first closed position 20A to the first opening position 20B. Is set to Specifically, in a state where the first cover part 20 is arranged at the first closing position 20A, the first cover part 20 is located away from the first changeover switch SW1, and the first changeover switch SW1 is pushed down. It is not done and is ON. When the first cover part 20 is linearly moved from the ON state toward the first opening position 20B, the first changeover switch SW1 is pushed down by the first cover part 20 and turned OFF.

On the other hand, the second changeover switch SW2 is provided in the housing 2 so as to protrude from the second outer surface 2b that forms the periphery of the second opening 3B. The second change-over switch SW2 of this embodiment is a kind of push-down switch similar to the first change-over switch SW1, but the power-supply side wiring 8 is brought into a conductive state (ON state) while being pushed down by an external force and is pushed down. The power supply side wiring 8 is configured to be in a non-conducting state (OFF state) in the absence of power.
The second changeover switch SW2 switches the power supply side wiring 8 from the conductive state to the nonconductive state in conjunction with the rotation of the second cover portion 30 from the second closed position 30A to the second opening position 30B. Is set to More specifically, in a state where the second cover part 30 is arranged at the second closing position 30A, the second changeover switch SW2 is pushed down by the second cover part 30 and is turned on. When the second cover part 30 is rotated toward the second opening position 30B from this ON state, the second cover part 30 is separated from the second changeover switch SW2 and the depressed state of the second changeover switch SW2 is released. The two changeover switch SW2 is turned off.

Next, the operation of the housing structure 1 of the present embodiment configured as described above will be described with reference to Table 1 below.
In addition, the column “contactability” in Table 1 indicates whether the operator can contact the connection terminal 4 in the recess 3. The column “Electrical connection” indicates an electrical connection state between the power supply source 6 and the connection terminal 4, “◯” indicates a state of electrical connection, and “X” indicates a state of no electrical connection. ing.

In the housing structure 1 of the present embodiment, as shown in FIG. 1, in the state where the opening of the recess 3 is completely covered by the cover member 5 (“State 1” in Table 1), The second cover part 30 covers the first opening 3A and the second opening 3B of the recess 3, respectively. For this reason, the operator cannot touch the connection terminal 4 in the recess 3. In this state, the second cover portion 30 is held at the second closing position 30 </ b> A by the second locking member 19 with a predetermined force. Further, in this state, both the first changeover switch SW1 and the second changeover switch SW2 are ON, and the power supply source 6 and the connection terminal 4 are electrically connected.
In this state, since the second cover part 30 is arranged at the second closing position 30A, only the first cover part 20 is linearly moved from the first closing position 20A toward the first opening position 20B. I can't.

  When the power receiving side wiring 9 of the power receiving device 7 is connected to the connection terminal 4 in the recess 3 from the state shown in FIG. 1, for example, the operator first holds the grip portion 32, as shown in FIG. 3. In this way, the second cover 30 is rotated in the D direction from the second closing position 30A to the second opening position 30B. In the state after this rotation ("State 2" in Table 1), the second opening 3B is open, but the first opening 3A is closed. For this reason, the operator cannot touch the connection terminal 4 in the recess 3. In this state, the first changeover switch SW1 is ON, but the second changeover switch SW2 is OFF, so that the power supply source 6 and the connection terminal 4 are not electrically connected.

Next, as shown in FIG. 4, the operator holds the grip portion 32 and linearly moves the first cover portion 20 from the first closing position 20A to the first opening position 20B in the A direction. In this movement, the second cover part 30 is inserted into the raceway groove 14 from the second outer surface 2 b side, and the second cover part 30 is also linearly moved in the A direction in the same manner as the first cover part 20. In the state after this movement ("State 3" in Table 1), both the first opening 3A and the second opening 3B are open, that is, the opening of the recess 3 is completely open. Further, in this state, the first cover portion 20 is held at the first opening position 20 </ b> B by the first locking member 18 with a predetermined force.
In the state shown in FIG. 4, although a part of the first opening 3 </ b> A is covered by the second cover part 30, the size of the second cover part 30 is sufficiently smaller than the first cover part 20. Moreover, since the insertion hole 31 is formed in the 2nd cover part 30, the operator can work by touching the connection terminal 4 in the recess 3 easily. In this state, both the first changeover switch SW1 and the second changeover switch SW2 are turned OFF, and the power supply source 6 and the connection terminal 4 are not electrically connected.

  Therefore, the worker can connect the power receiving side wiring 9 to the connection terminal 4 in a state where the voltage of the power supply source 6 is not applied to the connection terminal 4. In the state shown in FIG. 4, since the second selector switch SW2 is exposed to the outside, it may be turned on unexpectedly by the operator's finger or the like (see “State 4” in Table 1). . However, even in such a case, since the first changeover switch SW1 is held in the OFF state by the first cover unit 20, the power supply source 6 and the connection terminal 4 are not electrically connected.

Then, after the connection of the power receiving side wiring 9 to the connection terminal 4 is completed, the operator grasps the grip portion 32 and linearly moves the first cover portion 20 and the second cover portion 30 in the B direction, as shown in FIG. As shown, after the first cover portion 20 is disposed at the first closed position 20A, the second cover portion 30 is further rotated in the E direction from the second opening position 30B to be disposed at the second closed position 30A. Good. Here, since the insertion hole 31 is formed in the second cover part 30, the power receiving side wiring 9 drawn out from the inside of the recess 3 interferes with the second cover part 30 during the rotation. Can be prevented.
In this state ("State 1" in Table 1), the opening of the recess 3 is completely covered by the cover member 5, and both the first change-over switch SW1 and the second change-over switch SW2 are turned on. The source 6 and the connection terminal 4 are electrically connected. That is, power is supplied from the power supply source 6 to the power receiving device 7 via the connection terminal 4.

As described above, according to the housing structure 1 of the present embodiment, in a state where the opening of the recess 3 is completely opened, the recess 3 opens to the two outer surfaces 2a and 2b adjacent to each other. It is possible to easily insert the operator's fingers into the place 3 and easily perform operations on the connection terminals 4. That is, workability for operating the connection terminal 4 can be improved.
In addition, when the opening of the recess 3 is completely closed, the movement of the first cover portion 20 from the first closing position 20A to the first opening position 20B is restricted by the second cover portion 30. Even if an unexpected external force (a predetermined force or more) acts on the cover member 5, the second cover portion 30 only rotates, and the opening of the recess 3 can be reliably prevented from opening completely. . Therefore, an operator's operation mistake (erroneous operation) with respect to the connection terminal 4 arranged in the recess 3 can be surely prevented.

In particular, in the housing structure 1 of the present embodiment, the power supply side wiring 8 is brought into conduction only when the opening of the recess 3 is completely closed, and the power supply source 6 and the connection terminal 4 are electrically connected. The operator's hand can be reliably prevented from touching the connection terminal 4 by mistake. That is, it is possible to reliably prevent an electric shock accident due to an operator's operation error.
Further, when the power receiving side wiring 9 is attached to and detached from the connection terminal 4, even if the second changeover switch SW2 exposed to the outside is turned ON, the first changeover switch SW1 is held in the OFF state. When attaching and detaching, it is possible to reliably prevent unexpected discharge (occurrence of hot-wire insertion / extraction) between the power receiving side wiring 9 and the connection terminal 4. Therefore, it is possible to reliably prevent the occurrence of burnout of the power receiving side wiring 9 and the connection terminal 4 due to the hot plugging and the failure of the circuits such as the power supply source 6 and the power receiving device 7.
From the above, it is possible to safely and reliably implement the attachment and detachment of the power receiving side wiring 9 with respect to the connection terminal 4. This effect is particularly effective when the power supply source 6 is at a high voltage (for example, DC 500 V).

Further, according to the housing structure 1 of the present embodiment, when the opening of the recess 3 is completely closed, the second cover 30 is moved to the second closing position 30A by the second locking member 19 with a predetermined force. Since it is held, the second opening 3 </ b> B does not open unless a predetermined force or more acts on the second cover portion 30. That is, it can prevent more reliably that the 2nd opening 3B opens unintentionally.
On the other hand, in the state where the opening of the recess 3 is completely open, the first cover portion 20 is held at the first opening position 20B by the first locking member 18 with a predetermined force. As long as it does not act on the first cover part 20, the first opening 3A is not closed. That is, it is possible to prevent the first opening 3A from being unintentionally closed.

Further, since the opening of the recess 3 is held in a completely closed state or an open state by the locking members 18 and 19, the direction of the first opening 3A and the second opening 3B of the recess 3 is arbitrarily set. It becomes possible to do.
More specifically, for example, when the housing 2 is disposed so that the second opening 3B is vertically downward, the second cover portion 30 disposed at the second closing position 30A is moved to the second opening position 30B by its own weight. The second cover member 30 can be held at the second closing position 30A by providing the second locking member 19. That is, the opening of the recess 3 can be held in a completely closed state.

Moreover, when the housing | casing 2 is arrange | positioned as mentioned above, although there exists a possibility that the 1st cover part 20 distribute | arranged to the 1st opening position 20B may linearly move to a B direction by dead weight, By being provided, the 1st cover part 20 can be hold | maintained in the 1st opening position 20B. That is, the opening of the recess 3 can be held in a completely opened state, and as a result, workability for operating the connection terminal 4 can be ensured.
Therefore, according to the housing structure 1 of the present embodiment, for example, the housing 2 can be installed on a wall of a building or the like so that the second opening 3B is vertically downward.

Further, according to the housing structure 1 of the present embodiment, when the first cover part 20 is linearly moved between the first closing position 20A and the first opening position 20B, both side parts of the second cover part 30 are Since it is inserted in the track groove 14, the rotation of the second cover portion 30 with respect to the first cover portion 20 is restricted by the track groove 14. Therefore, the first cover portion 20 and the second cover portion 30 can be smoothly moved linearly, and the first opening 3A can be easily opened and closed by the cover member 5.
Furthermore, in a state where both side portions of the first cover portion 20 and the second cover portion 30 are inserted into the raceway grooves 14, the first cover portion 20 and the second cover portion 30 are arranged along the first outer surface 2a. Therefore, even if the space on the first outer surface 2a is narrow, the first opening 3A of the recess 3 can be easily opened and closed. In other words, the housing structure 1 of the present embodiment can be installed and used in a narrow space.

Furthermore, in the storage structure 1 of the present embodiment, the inclined guide surface 34 is formed at the base end portion of the second cover portion 30, so that, for example, as shown in FIG. Even if the entire second cover portion 30 is not positioned above the virtual plane P1 including the inner surface 14a of the raceway groove 14, the first cover portion 20 can be easily moved from the first closed position 20A to the first open position 20B. It is possible to move linearly.
More specifically, a state in which a part of the second cover part 30 disposed at the second opening position 30B is located below the virtual plane P1 (the second cover part 30 is located from the second closing position 30A). When the first cover portion 20 is linearly moved in the A direction toward the first opening position 20B in a state where the first cover portion 20 is moved toward the first opening position 20B in a state of being rotated at an angle of 90 degrees or less in the D direction. The surface 34 abuts on a corner (case corner) between the second outer surface 2b and the inner surface 14a of the raceway groove 14.

When the first cover portion 20 is further moved in the A direction from this contact state, the force that linearly moves the first cover portion 20 in the A direction is increased by the inclined guide surface 34 that is in contact with the corner portion of the housing. Since the second cover part 30 is converted into a force that rotates the two cover parts 30 in the D direction, the second cover part 30 rotates in the D direction until the entire second cover part 30 is positioned above the virtual plane P1. . As a result, both side portions of the second cover portion 30 are inserted into the raceway grooves 14, and the first cover portion 20 can be linearly moved to the first opening position 20B.
From the above, the moving operation of the cover member 5 that opens the opening of the recess 3 can be easily performed.

As mentioned above, although the detail of this invention was demonstrated by the said embodiment, the technical scope of this invention is not limited to this, It can change suitably in the range which does not deviate from the technical idea of this invention.
For example, in the above-described embodiment, the insertion hole 31 formed in the second cover portion 30 opens at the tip end portion of the second cover portion 30 in the peripheral edge of the main surface of the second cover portion 30, but at least the first What is necessary is just to open to the periphery of the main surface of the 2nd cover part 30 except the base end part connected with the one cover part 20. FIG. Therefore, the insertion hole 31 may be opened in the side part of the 2nd cover part 30 among the periphery of the main surface of the 2nd cover part 30 located in a side part, for example.

  Further, the housing 2 is formed with a track groove 14 and an insertion slit 15 for linearly moving the first cover portion 20 and the second cover portion 30 below the first outer surface 2a in the AB direction. Not limited to this, it is only necessary to form a structure for linearly moving at least the first cover portion 20 between the first closing position 20A and the first opening position 20B. Therefore, for example, a guide rail for linearly moving the first cover portion 20 on the first outer surface 2a may be formed in the housing 2. In such a configuration, when the first cover portion 20 is moved from the first closing position 20A toward the first opening position 20B, the second cover portion 30 is also disposed on the first outer surface 2a. . Further, the first changeover switch SW1, the second restricting portion 17, and the first locking member 18 are provided not to be arranged inside the housing 2 as in the above-described embodiment but to protrude from the first outer surface 2a. It only has to be done.

Further, the first locking member 18 and the second locking member 19 are not limited to magnets as in the above embodiment, and the first cover member 20 is held at the first opening position 20B with at least a predetermined force, Any member that holds the two cover portions 30 at the second closing position 30A may be used. Accordingly, the first locking member 18 and the second locking member 19 may be clasps, for example.
Moreover, the 1st latching member 18 and the 2nd latching member 19 are not restricted to the position shown in the said embodiment, What is necessary is just to be provided in the housing | casing 2 at least.
Furthermore, the first locking member 18 and the second locking member 19 may not be particularly provided.

Furthermore, the connection terminal 4 accommodated in the recess 3 is not limited to a terminal block for connecting the power receiving side wiring 9 by screwing, but may be, for example, a plug-in type connector. In this case, the power receiving side wiring 9 may be provided with a connector that can be inserted into the connection terminal 4.
The connection terminal 4 is not limited to being connected to the power receiving side wiring 9, and various electrical components such as a fuse and a capacitor may be detachably connected. In this case, it is preferable that the electrical component connected to the connection terminal 4 is accommodated in the recess 3 and covered with the cover member 5, so that hot plugging of the electrical component with respect to the connection terminal 4 can be reliably prevented.
Further, the recess 3 is not limited to accommodating the connection terminal 4, and any work target that should be prevented from erroneous operation, such as an operation switch, may be accommodated.

  Moreover, the two flat outer surfaces 2a and 2b in which the recess 3 opens are not limited to being orthogonal to each other as in the above-described embodiment, but may be inclined at least in different directions.

DESCRIPTION OF SYMBOLS 1 Housing structure 2 Case 2a 1st outer surface 2b 2nd outer surface 3 Recess 3A 1st opening 3B 2nd opening 4 Connection terminal (work object)
5 Cover member 6 Power supply source 7 Power receiving device 8 Power supply side wiring (wiring)
11 Inner side surface 14 Track groove 18 First locking member (locking member)
19 Second locking member (locking member)
20 1st cover part 20A 1st closing position 20B 1st opening position 30 2nd cover part 30A 2nd closing position 30B 2nd opening position 33 Contact surface 34 Inclination guide surface SW1 1st changeover switch SW2 2nd changeover switch

Claims (5)

The work object is provided in a recess formed in the housing, and the work object is housed in a structure for covering the opening of the recess with a cover member so as to be freely opened and closed.
The recesses open to two flat outer surfaces that are adjacent to each other and are inclined in different directions;
The cover member includes a first cover portion that covers the first opening of the recess that opens to the first outer surface, and a second cover portion that covers the second opening of the recess that opens to the second outer surface,
The first cover part can be linearly moved in one direction along the first outer surface toward and away from the corners of the first outer surface and the second outer surface, and the first opening can be opened and closed. age,
The second cover portion is pivotally connected to one end portion located at the corner portion of the first cover portion disposed at a position covering the first opening, and opens and closes the second opening. Free
In a state where the second cover portion is disposed at a position covering the second opening, the linear movement of the first cover portion from a position covering the first opening to an opening position is restricted,
In a state where the second cover portion is arranged at a position where the second opening is opened, the linear movement of the first cover portion from a position covering the first opening to an opening position is permitted ,
The housing structure, wherein the housing is provided with a locking member that locks the first cover portion disposed at a position where the first opening is opened .   The housing structure according to claim 1, wherein a locking member that locks the second cover portion disposed at a position covering the second opening is provided on the housing. A pair of track grooves extending in the one direction and opening in the second outer surface are formed on the inner surface of the recess that forms the edge of the first opening,
The first cover portion is slidable in the extending direction of the track groove by inserting both side portions thereof into the track grooves,
In a state where the first cover portion is arranged at a position covering the first opening and the second cover portion is arranged at a position opening the second opening, both side portions of the second cover portion are each track groove. The housing structure according to claim 1 , wherein the housing structure can be inserted into the housing. The base end portion of the second cover portion connected to the first cover portion has a contact surface that contacts the second outer surface in a state of being disposed at a position covering the second opening. as progressively away from said second outer surface toward the base end parts, one of claims 1 to 3, characterized in that inclined guide surfaces inclined relative to the abutment surface is formed The housing structure according to claim 1. The work object is a connection terminal electrically connected to a power supply source by wiring,
In conjunction with the linear movement of the first cover portion from the position covering the first opening to the opening position, a first changeover switch that switches the wiring from a conductive state to a non-conductive state;
A second changeover switch that switches the wiring from a conductive state to a non-conductive state in conjunction with rotation of the second cover portion from a position covering the second opening to a position opening. The housing structure according to any one of claims 1 to 4 .

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