JPH0624097Y2 - Switch in case - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a case in which the front of the case body is opened, the opening is covered so as to be openable and closable, and a pair of double doors with mutual fittings are provided. It relates to an on / off switch.

[Prior Art] Generally, in this type of cased switch, locks of the same type are provided on both upper and lower ends of both doors, and the door is locked by a single key operated from the outside of the door. It is like this.

[Problems to be Solved by the Invention] Therefore, each lock may be pry open by a screwdriver or the like, which is not preferable for crime prevention. Also, when the internal pressure rises due to an internal short circuit, the locks on both doors are destroyed and both doors are opened, and a large amount of internal pressure is instantaneously released to the front of the case.
There was a possibility of causing enormous human and property damage.

An object of the present invention is to solve such problems and provide a switch in a case which is excellent in safety and crime prevention.

[Means for Solving Problems] In order to solve the above problems, in the present invention,
Between the case body and the upper and lower ends of the outer door and the upper end or lower end of the inner door, the doors are locked in a closed state, and a lock is unlocked with a key. The inner side of the assembled inner door has a hollow that allows it to move between the position where it is engaged with the case body and the position where it is disengaged from the case body. The lock that locks in the closed state is concealed so as not to be seen from the outside, and the lock has an elastic holding member that elastically engages the engaging portion provided in the lock to hold the lock in the locked state.

[Operation] Therefore, in this invention, since the kansu lock is concealed, the kansu lock is less likely to be found even if another lock is pryed open by mischief or the like. Further, the canteen of the canteen lock is held in a locked state by the engagement with the elastic holding member and is not released by vibration or the like.

[Embodiment] An embodiment in which the present invention is embodied in a multi-circuit switch will be described below with reference to the drawings.

The front surface of the case body 1 having a plurality of opening / closing parts (not shown) is open, and the open doors 2 and 3 are open doors.
Is provided. As shown in FIG. 4, a summing piece 4 is fixed to the inside of the open end of the right door 3, and the open end of the left door 2 faces the summing piece 4 from the outside. Therefore, the two doors 2 and 3 have mutual summing portions, the right side door 3 is located inside the summing side, and the left side door 2 is located outside the summing side.

As shown in FIGS. 1 to 3, rotating locks 5 are provided above and below the open end of the left door 2 and above the open end of the right door 3, respectively.
Is provided. This rotary lock 5 is fixed to the case body 1 by fixing a bearing 6 penetratingly fixed to the doors 2 and 3, a rotary shaft 7 rotatably inserted and supported by the bearing 6 and an inner end portion of the rotary shaft 7. A lock piece 9 that can be hooked on the fixed hook piece 8, a cover 10 that covers the outer protruding portion of the rotary shaft 7 and exposes the outer end surface of the rotary shaft 7, and the shaft 1 on the cover 10.
The lid 11 is supported by 2 and is movable between a position that covers the exposed outer end of the rotary shaft 7 and a position that retracts from the exposed end. A pair of parallel ridges 13 are formed on the outer end of the rotary shaft 7, and the rotary shaft 5 is rotated by inserting a key between the ridges 13 to rotate the lock piece 9 and the latch piece 8. It can be moved to a position where it is hooked to the position and a position where it is separated from it. An index 14 is attached to the outer end of the rotary shaft 7, and an open character 15 is attached to the outer peripheral portion of the cover 10 to indicate the unlocked position and the locked position supported by the index 14. Further, a protrusion 16 is formed on the inner surface of the lid 11, and the protrusion 16 interferes with the ridge 13 by closing the lid 11 when the rotating shaft 7 is in the unlocked position to close the lid 11. In addition to blocking, when the rotary shaft 5 is in the release position, the lid 11 is allowed to rotate to the closed position without engaging with the protrusion 13. In addition, 17 is a hole 18 of the cover 10 when the lid 11 is closed.
A projection that engages with and elastically holds the lid 11 in the closed state,
Reference numeral 19 is a recess for allowing the projection 16 to pass without interfering with the cover 10.

As shown in FIGS. 1 and 4, a pillar lock 21 is provided at the center of the open end of the left door 2. The pillar lock 21 is provided with a bolt 23 corresponding to the hooking piece 22 fixed to the edge of the assembly piece 4, and is located on the outer side surface of the door 2 and can be moved left and right by using a key (not shown). It has an operating unit 24 for moving it, and the bolt 23 is the fourth.
When in the position shown in the figure, the left side door 2 faces the hooking piece 22.
To the right door 3.

As shown in FIGS. 1 and 4 to 7, the right door 3
At the lower end of the inner side surface of the open end, a lock 31 is concealed so as not to be seen from the outside, and its configuration will be described in detail below. Two brackets 32 and 33 are fixed to the inner surface of the door 3 so as to partially straddle the assembly piece 4 and are vertically spaced from each other.
Is supported and fixed. In the support cylinder 34, the space 35
Is rotatably inserted and supported so as to be vertically movable and rotatable, and an operating lever 36 fixed to one end of the reverse L is transparently provided on the support cylinder 34.
The operation lever 36 is projected outward from the character-shaped guide groove 37.
When is located in the upper horizontal portion 37a of the guide groove 37, the bolt 35 is held at the upper end moving position. The bracket 32 is provided with a holding hole 32a through which a bolt 35 is inserted, and a holding plate 38 is fixed to the door 3 located above the holding hole 32a.
A holding hole 39 through which the tip portion of 5 is inserted and held is provided through. A locking groove 4 is provided at the lower end and the middle of the bolt 35.
0 and 41 are formed. On the other hand, a locking spring 42 as an elastic holding member is attached to the bracket 33, and when the bolt 35 is located at the upper end position and the lower end position, the locking spring 42 is elastically fitted to either the locking groove 40 or 41. Positively engaged to elastically retain the tines 35 in their upper or lower end position. A lock member 43 is fixed to the case body 1 via a bracket 44, and when the door 3 is closed and the door 35 is moved to the upper end position, the lock member 43 engages with the door 35 and the bracket 32 , The door 3 is non-releasably locked in cooperation with the holding plate 38. When the bolt 35 is moved to the lower end position,
The lock 35 is released from the lock member 43, and the lock is released. The engaging portion of the lock member 43 with the bolt 35 is formed by a plurality of adjusting plates 45 fixed by bolts 46. By arbitrarily selecting the number of the adjusting plates 45, the bolt 35 and the locking member 43 can be selected.
The positional relationship with can be finely adjusted.

Now, when the doors 2 and 3 are closed, the lock piece 9 of the rotary lock 5 is hooked on the hooking piece 8 of the case body 1, and both doors 2 and 3 are locked to the case body 1 in the closed state. At the same time, the bolt 23 of the pillar lock 21 projects toward the door 3, the door 2 is locked with respect to the door 3, and the bolt 35 of the bolt 31 is moved upward and engaged with the lock member 43, so that the door 3 is locked to the case body 1. Therefore, both doors 2 and 3 are locked and fixed to the case main body 1 as well as to each other,
The doors 2 and 3 can sufficiently maintain the closed state against a sudden increase in internal pressure due to an internal short circuit and the like, the door is opened due to the increase in internal pressure, and the parts and the like in the case body 1 pop out to the human or It does not cause physical damage.

Further, when the lock 31 is locked, the lock 35 is arranged at the upper end position, and the operating lever 36 fixed to the lock 35 has the upper horizontal portion 37 a of the guide groove 37.
The locking spring 42 is elastically engaged with the locking groove 40 at the lower end of the bolt 35. Therefore,
The door 31 is securely held at its upper end position, and the operation lever 36 will not be disengaged from the upper end horizontal portion 37a of the guide groove 37 due to rotation of the door 31 due to vibration or the like accompanying passage of the vehicle. In addition, even when forgetting to lock the operating lever 36 on the upper horizontal portion 37a of the guide groove 37 when locking the lock 31, the lock 35 is always held at the upper end position.
The door 3 can always withstand an increase in internal pressure, and by the way, the door 2 is locked by the locking piece 22 and the pillar lock 21.
Even with respect to, it is possible to secure a release blocking force against an increase in internal pressure.
Further, the engagement between the locking spring 42 and the locking grooves 40, 41 gives a click feeling to the operator when the bolt 35 is located at the upper end and the lower end, so that the lock 31 is provided on the inner surface of the inner door 3. Even if it is hidden from the outside and cannot be seen from the outside, the opening / closing operation can be easily performed.

Further, as described above, the lock 31 is hidden inside the right side door 3, and the opening / closing operation is performed by the right side door 3 and the case body 1.
Since it is carried out through the gap between the lock lock and the pillar lock 21, even if the rotary lock 5 and the pillar lock 21 can be pryed open by mischief, it is unlikely that the lock will be opened, which is preferable for safety and crime prevention. Is.

[Advantages of the Invention] As illustrated in the above embodiments, in the present invention, the door covering the front open portion of the case body can be securely held in a closed state against an increase in internal pressure, mischief, etc. It has an excellent effect on security and crime prevention.

[Brief description of drawings]

FIG. 1 is a front view of a multi-circuit switch embodying the present invention,
FIG. 2 is a sectional view of a rotary lock portion, FIG. 3 is a front view of the rotary lock portion, FIG. 4 is a sectional view of a pillar lock portion, and FIG. 5 is a sectional view showing a cane lock cut at its bracket portion,
FIG. 6 is a sectional view taken along the line AA of FIG. 5, and FIG. 7 is a perspective view of the locking spring. 1 ... Case body, 2, 3 ... Door, 5 ... Rotating lock, 31
...... Cannon lock, 35 …… Canner, 42 …… Locking spring.

Claims (1)

[Scope of utility model registration request] 1. A switch in a case in which a front surface of a case body (1) is opened, the open portion is openably and closably covered, and a pair of double doors (2) and (3) having mutual fitting portions are provided. In the closed state, the doors (2) and (3) are closed between the case body (1) and the upper and lower end portions of the outer side door (2) and the upper end or the lower end of the inner side door (3). A lock (5) for locking and unlocking with a key is provided on the inner side surface of the interior door (3) for engagement with the case body (1), and a case body (1). It has a bar (35) that allows it to move between the positions where the bar (3)
The lock (31) that locks the inner door (3) in the closed state when the case (5) is engaged with the case body (1) is concealed so as not to be seen from the outside, and the lock (31) has a lock. An elastic holding member (4) for elastically engaging the engaging portion provided on (35) to hold the bolt (35) in a locked state.
A switch in a case, which is provided with 2).