JP4041688B2 - Door opening / closing control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door opening / closing restriction device, and more particularly to a door opening / closing restriction device for restricting the opening / closing of a door of a control panel to ensure work safety.
[0002]
[Prior art]
Conventionally, in a control panel with multiple doors, when the main door is opened, the inside of the control panel is automatically disconnected (non-live line state) so that the work in the control panel can be performed safely. In addition, there is known a control panel configured such that when the main door is closed, the inside of the control panel automatically enters a live line state. In such a control panel, even if the main door is closed while a door other than the main door is open, the interior of the control panel automatically enters a hot line state, which causes a problem in safety. In view of this, various proposals have been made for the purpose of ensuring safety by preventing the main door from being closed when a door other than the main door is open (for example, Japanese Utility Model Laid-Open No. 4-121306). No. JP, 6-335120, A).
[0003]
[Problems to be solved by the invention]
However, the conventional door opening / closing regulating apparatus as described above has problems that the structure is complicated, the number of parts is large, the assembling workability is poor, and the cost is high.
[0004]
An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a door opening / closing regulating device that has the effects of simple structure, small number of parts, excellent assembly workability, and low cost. And
[0005]
[Means for Solving the Problems]
The door opening / closing regulating device of the present invention includes a double door main door and a sub door, and is provided with a main body portion of the locking device on the back surface of the main door and is locked and unlocked with respect to the locking device main body portion. In the control panel provided with metal fittings on the control panel body side, the control panel body has a housing attached to the lower surface of the ceiling, and a left and right elongated hole penetrating in the front-rear direction of the control panel. A stopper rod that is reciprocally movable in the left-right direction of the control panel while being guided by the guide hole, an operating piece that can contact the back surface of the sub-door, and a length of the stopper rod that extends rearward from the operating piece. A horizontal plate having a pressing plate portion inserted into the long hole so as to be engageable with the end face of the hole, and reciprocally movable in the front-rear direction of the control panel while being guided by the guide hole and the guide pin formed in the housing. And A spring that is stretched between a ding and the stopper rod and that constantly acts on the stopper rod with a biasing force in a direction of advancing the tip end portion of the stopper rod to a front position of the locking bracket, When is open, the pressing plate portion and the end surface of the elongated hole are in a disengaged state, and the tip end portion of the stopper rod is advanced to the front position of the locking bracket, so that the main door is closed. Even when the front end of the stopper rod prevents the locking device main body from approaching the locking fitting and closes the sub door, the operating piece comes into contact with the back surface of the sub door and moves backward. When a pressing force is received, the pressing plate portion starts to engage with the end face of the elongated hole, and the front end portion of the stopper rod is moved from the front position of the locking fitting toward the housing against the biasing force of the spring. The main door Closing time, the locking device is allowed access to the locking fitting of the main body portion, characterized by comprising a lockable.
[0006]
The door opening / closing regulating device of the present invention is mainly due to a combination of a housing, a stopper rod, a horizontal plate, and a spring with a simple structure, so the structure is simple, the number of parts is small, the assembly workability is excellent, and the cost is low. The effect of being cheap can be produced.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
1 is a schematic perspective view of a control panel in which a door opening / closing regulating device according to an embodiment is incorporated, FIG. 2 is a partially cutaway perspective view of the door opening / closing regulating device, and FIG. FIG. 4 is a partially cutaway rear view of the door opening / closing regulating device, FIG. 5 is a perspective view of the door opening / closing regulating device when both the main door and the sub door are open, and FIG. FIG. 7 is a perspective view of the door opening / closing regulating device when both doors are closed, and FIG. 7 is a schematic configuration diagram of the locking device.
[0009]
The control panel includes a double door main door 1 and a sub door 2 as shown in FIG. 1, and is locked near the mating surface 3 of the upper end of the main door 1 and the sub door 2 as shown in FIG. A main body 41 of the device 4 is projected in the closing direction of the main door 1. The locking device 4 is a known locking device, and when the main door 1 is closed, one leg portion 42a of the U-shaped locking portion 42 of the locking bracket of the locking device main body 41 is connected to the control panel main body 5 side. The L-shaped locking bracket 43 (see FIGS. 5 and 6) suspended from the ceiling 51 enters the hollow portion 43 b of the annular locking portion 43 a, and the locking device main body 41 attaches the L-shaped locking bracket 43. It is configured to lock or lock. Further, the locking device 4 exposes a disk portion 44 that can be rotated by a flat-blade screwdriver or the like on the surface of the main door 1, and the L-shaped locking is achieved by rotating the disk portion 44. The metal fitting 43 can be unlocked from the locking device main body 41, that is, unlocked. Although the control panel is not shown because it is publicly known, when the main door 1 is opened, the inside of the control panel becomes disconnected (non-live line state), and when the main door 1 is closed, the inside of the control panel becomes hot line state. It is comprised so that it may become.
[0010]
On the ceiling 51 of the control panel, a door opening / closing regulating device 6 is suspended. As shown in FIGS. 2 to 6, the door opening / closing regulating device 6 includes a substantially square cylindrical housing 61 attached to the lower surface of the ceiling 51 of the control panel body 5. A plurality of flange portions 61a are formed at the upper and lower ends of the housing 61 so that the housing 61 can be attached to the ceiling even upside down. The housing 61 is provided with a stopper rod 62 and a horizontal plate 63 so as to be orthogonal to each other in plan view. The stopper rod 62 has a left and right elongated hole 62a penetrating in the front-rear direction of the control panel, and is controlled while being guided by guide holes 61d and 61e formed in the left wall portion 61b and the right wall portion 61c of the housing 61, respectively. The board can be reciprocated in the left-right direction. The horizontal plate 63 has, at the front end, an operating piece 63a that can come into contact with the back surface of the sub door 2. A pressing plate portion 63b that is inserted into the long hole 62a so as to be engageable with the end surface 62b of the long hole 62a of the stopper rod 62 extends rearward from the operating piece portion 63a. The pressing plate portion 63b is configured by a straight portion 63c whose rear portion has the same size in the left-right direction in the front-rear direction, and from the front end of the straight portion 63c to the front, the deformed portion whose size in the left-right direction gradually increases toward the front. 63d. The deformed portion 63 d is inserted into a left and right elongated hole 61 g formed in the front wall portion 61 f of the housing 61 and penetrating in the front-rear direction. A long groove 63e in the front-rear direction is formed from the straight portion 63c to the deformed portion 63d. The guide rod portion 63f forming the long groove 63e is inserted into guide holes 61i and 61j formed in the front wall portion 61f and the rear wall portion 61h of the housing 61 so as to be reciprocally movable in the front-rear direction. Guide pins 61k and 61l formed on the front wall portion 61f and the rear wall portion 61h of the housing 61 are inserted into the housing 63e. Thus, the horizontal plate 63 is assembled to the housing 61 so as to be reciprocally movable in the front-rear direction while being guided by the guide holes 61i, 61j and the guide pins 61k, 61l. A spring 64 is stretched in the left-right direction between the right wall 61c of the housing 61 and the stopper rod 62. The spring 64 always applies a biasing force to the stopper rod 62 in such a direction as to pull the stopper rod 62 in the direction of the right wall portion 61 c of the housing 61 and advance the tip end portion 62 c of the stopper rod 62 to the front position of the locking fitting 43. ing.
[0011]
When the sub door 2 is in the open state, the rear end of the long groove 63e of the pressing plate 63b is in the vicinity of the guide pin 61l of the rear wall 61h of the housing 61, and the operating piece 63a is in the forward movement position. Further, the straight portion 63 c is in the long hole 62 a of the stopper rod 62, the pressing plate portion 63 b and the end surface 62 b of the long hole 62 a are in the disengaged state, and the tip portion 62 c of the stopper rod 62 is the urging force of the spring 64. Only the forward movement position, that is, the front of the locking metal fitting 43 is received. Therefore, even if the main door 1 is to be closed when the sub-door 2 is in the open state, the locking device main body 41 comes into contact with the tip end portion 62c of the stopper rod 62, and the locking bracket 43 of the locking device main body 41 is brought into contact. The approach to is blocked and the main door 1 cannot be closed.
[0012]
When the sub door 2 is closed, the operating piece 63a abuts against the back surface of the sub door 2 and receives a backward pressing force. With this pressing force, the horizontal plate 63 moves backward while being guided by the guide holes 61i and 61j and the guide pins 61k and 61l. At this time, the deformed portion 63 d of the pressing plate portion 63 b starts to engage with the end surface 62 b of the elongated hole 62 a of the stopper rod 62, and the distal end portion 62 c of the stopper rod 62 is locked against the urging force of the spring 64. It is made to retract toward the housing 61 from the front position. When the main door 1 is closed after the sub-door 2 is completely closed, the locking device main body 41 does not come into contact with the stopper rod 62 because the tip 62c of the stopper rod 62 is in the retracted position. Accordingly, the locking device main body 41 and the locking metal fitting 43 are engaged with each other to enter a locked state.
[0013]
As described above, the door opening / closing regulating device 6 according to this embodiment includes the double door main door 1 and the sub door 2, the main body 41 of the locking device 4 is provided on the back surface of the main door 1, and the locking device. In a control panel in which a locking bracket 43 to be locked and unlocked with respect to the main body 41 is provided on the control panel main body 5 side, a housing 61 attached to the bottom surface of the ceiling 51 of the control panel main body 5 and a front-rear direction of the control panel And a stopper rod 62 that can be reciprocated in the left-right direction of the control panel while being guided by guide holes 61d, 61e formed in the housing 61, and a back surface of the sub door 2. An operating piece 63a, and a pressing plate 63b that extends rearward from the operating piece 63a and is inserted into the long hole 62a so as to be engageable with the end surface 62b of the long hole 62a of the stopper rod 62. Formed in 61 The guide plate 61i and 61j and the guide pins 61k and 61l are guided between the horizontal plate 63, which is reciprocally movable in the front-rear direction of the control panel, and is spanned between the housing 61 and the stopper rod 62. And a spring 64 that always acts on the stopper rod 62 in the direction of advancing the portion 62c to the forward position of the locking bracket 43, and when the sub door 2 is in the open state, the end surface of the pressing plate portion 63b and the long hole 62a 62b is in a non-engaged state, and the distal end portion 62c of the stopper rod 62 has advanced to the front position of the locking bracket 43. Even if the main door 1 is to be closed, the distal end portion 62c of the stopper rod 62 causes the locking device body portion to be closed. When the actuating piece 63a abuts against the back surface of the sub door 2 and receives a rearward pressing force when the access to the locking metal fitting 43 is blocked and the sub door 2 is closed, the pressing plate portion 3b starts to engage with the end face 62b of the long hole 62a, and the front end 62c of the stopper rod 62 is retracted from the front position of the locking metal fitting 43 toward the housing 61 against the biasing force of the spring 64, and then the main When the door 1 is closed, the locking device main body 41 is allowed to approach the locking fitting 43 and can be locked.
[0014]
According to the present embodiment, since it is mainly a combination of the housing 61, the stopper rod 62, the horizontal plate 63, and the spring 64 having a simple configuration, the structure is simple, the number of parts is small, and the assembly workability is excellent. The effect that it is cheap can be produced.
[0015]
【The invention's effect】
According to the door opening / closing regulating apparatus of the present invention, the structure is simple, the number of parts is small, the assembling workability is excellent, and the cost is low.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a control panel in which a door opening / closing regulating apparatus according to an embodiment of the present invention is incorporated.
FIG. 2 is a partially cutaway perspective view of the door opening / closing regulating device.
FIG. 3 is a plan view of the door opening / closing regulating device.
FIG. 4 is a partially cutaway rear view of the door opening / closing regulating device.
FIG. 5 is a perspective view of the door opening / closing regulating device when both the main door and the sub door are open.
FIG. 6 is a perspective view of the door opening / closing regulating device when both the main door and the sub door are closed.
FIG. 7 is a schematic configuration diagram of a locking device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main door 2 Sub door 4 Locking device 41 Locking device main-body part 43 Locking metal fitting 5 Control panel main body 51 Ceiling 6 Door opening / closing control device 61 Housing 61d, 61e, 61i, 61j Guide hole 61k, 61l Guide pin 62 Stopper rod 62a Long Hole 62b End face 62c Tip 63 Horizontal plate 63a Actuating piece 63b Pressing plate 64 Spring

Claims (1)

A double door main door and a sub door are provided, and a main body portion of the locking device is provided on the back surface of the main door, and a locking metal fitting for locking and unlocking the locking device main body portion is provided on the control panel main body side. In the control panel,
A housing attached to the lower surface of the ceiling of the control panel body;
A stopper rod having a left and right elongated hole penetrating in the front-rear direction of the control panel, and being reciprocally movable in the left-right direction of the control panel while being guided by a guide hole formed in the housing;
An operating piece that can contact the back surface of the sub-door, and a pressing plate that extends rearward from the operating piece and is inserted into the long hole so as to be engageable with an end surface of the long hole of the stopper rod. A horizontal plate that is reciprocally movable in the front-rear direction of the control panel while being guided by guide holes and guide pins formed in the housing;
A spring that is stretched between the housing and the stopper rod, and that constantly exerts a biasing force in a direction of advancing the front end portion of the stopper rod toward the front position of the locking fitting;
When the sub-door is in an open state, the pressing plate portion and the end surface of the elongated hole are in a disengaged state, and the tip end portion of the stopper rod is advanced to a front position of the locking fitting, and the main door Even when trying to close, the tip of the stopper rod prevents the locking device main body from approaching the locking bracket,
When closing the sub-door, when the operating piece abuts against the back surface of the sub-door and receives a backward pressing force, the pressing plate starts to engage with the end surface of the elongated hole, and the spring When the distal end of the stopper rod is retracted from the front position of the locking bracket toward the housing against the urging force, and then the main door is closed, the locking device main body portion is close to the locking bracket. A door opening / closing regulating device that is allowed and lockable.

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