JP3842065B2 - Locking handle device for door opening and closing - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a lock handle device that is attached to a panel such as a door panel and used to open and close the panel.
[0002]
[Prior art]
As shown in Japanese Utility Model Laid-Open No. 4-101475, for example, electrical equipment such as a distribution board is provided with a lock handle device for opening and closing the door.
[0003]
This lock handle device is configured to open and close the door by rotating a handle provided on the door. Further, the handle device is provided with a lock mechanism for fixing the closed state of the door, and the door in the closed state is fixed by locking the lock mechanism using a key.
[0004]
[Problems to be solved by the invention]
In the lock handle apparatus configured as described above, it has not been possible to determine from the appearance whether or not the handle apparatus is locked. For this reason, in an electrical facility in which this type of lock handle device is installed, a situation may occur in which the user forgets to lock and is left unattended.
[0005]
The present invention has been made to solve such a problem, and a first object thereof is to provide a lock handle device that can visually recognize the presence or absence of locking in a closed state of a door of an electrical facility, for example. It is. A second object is to provide a door system using the lock handle device without forgetting to lock.
[0006]
[Means for Solving the Problems]
In order to achieve the first object, the present invention is premised on a door opening / closing lock handle device having a rotatable door opening / closing handle and a locking mechanism for fixing a closed state of the door.
[0007]
In such assumption, when the present invention is characterized, the handle apparatus, when unlocking the lock mechanism is retracted inwardly of the handle device, at the time of its facilities tablets advances outwardly of the handle device other A rod mechanism having a rod portion for operating the device; and the handle device includes a cylinder portion provided on a rotation shaft of the handle, a fitting portion protruding at a front end, a key groove at a rear end and rotating by a key. And a reciprocating motion in which a reciprocating motion is performed in a direction perpendicular to the rotation axis when the cam rotates when the cam rotates when the cam rotates. A locking mechanism comprising a cam mechanism having a locking rod that disables rotation of the handle in one direction and enables rotation of the handle in the other direction of the reciprocation. The rod mechanism connected to the locking rod is provided, and the locking rod has an engagement protrusion for driving the rod mechanism in the forward direction in the rotation axis, while the rod mechanism is engaged in the rear in the rotation axis direction. A rod member having a head portion engaged with the protrusion and having a rod portion extending forward from the head portion in the rotation axis direction; and a spring for urging the rod member toward the engagement protrusion; The rod and the rod mechanism are in contact with a first inclined surface formed on the engaging protrusion of the locking rod and a second inclined surface formed on the head of the rod mechanism, and the straight line of the locking rod Reciprocal movement is converted into linear reciprocation of the rod member in the direction of the rotation axis .
[0008]
In a preferred embodiment of the present invention, the rod mechanism is provided on a rotating shaft of the handle and is connected to the lock mechanism so that the rod portion is interlocked with locking and unlocking operations of the lock mechanism. It is to move forward and backward.
[0011]
According to still another preferred embodiment of the present invention, the other device is a micro switch provided in the moving direction of the rod portion so as to face the rod portion , and the micro switch is a forward movement of the rod portion. Time is closed, and when the rod part is retracted, it is opened.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
[0013]
In this embodiment, the present invention is applied to a distribution board door system.
[0014]
FIG. 1 is a perspective view of a device 2 partially broken to show a state in which a door opening / closing lock handle device 2 of the present embodiment is mounted on a door panel 1.
[0015]
FIG. 2 is a front view of the door opening / closing lock handle device 2 of the present embodiment and a schematic view of a door system in which a microswitch 8 is incorporated. FIG. 3 is an enlarged front view of the device 2 with a part of the door opening / closing lock handle device 2 cut away. FIG. 4 is a drawing showing the components of the lock mechanism 30 and the rod mechanism 22 that are provided in series. Note that in FIG. 4, parts that are partially omitted because they are well known are not depicted. FIG. 5 is a side view of the door opening / closing lock handle device 2 as viewed from the keyway 34 side. FIG. 6 is a schematic diagram for explaining the forward and backward operating mechanism of the rod portion 20 in the door opening / closing lock handle device 2.
[0016]
For convenience of the following description, the microswitch 8 side of the handle device 2 will be referred to as the front and the handle 21 side will be referred to as the rear, and as shown in FIG. 1, the rotation axis direction of the handle 21 is orthogonal to the X direction and the X direction. The long axis direction of the handle 21 formed in the shape of a bar is referred to as a Y direction, the X direction parallel to the door panel 1 and the direction perpendicular to the Y direction is referred to as a Z direction.
[0017]
First, the outline of this distribution board door system will be described.
[0018]
In the distribution board door system of the present embodiment, as shown in FIG. 1, a handle device 2 is mounted on a door panel 1 of the distribution board, and the door panel 1 is opened and closed by the operation of the handle device 2. ing.
[0019]
When the door panel 1 is closed, the claw fitting 5 of the handle device 2 is locked to the groove fitting 4 provided on the wall panel 3 of the distribution board.
[0020]
Further, in this distribution board door system, an electric circuit 7 (see FIG. 2) for lighting the display lamp 6 (see FIG. 2) is provided on the wall panel 3, and the display lamp 6 is not shown. Is provided at a desired location on the distribution board with good visibility. As shown in FIG. 2, the electric circuit 7 incorporates a micro switch 8 connected to the handle device 2, and is displayed by turning the micro switch 8 on and off when the handle device 2 is locked / unlocked. The lamp 6 is turned on / off.
[0021]
Next, the details of the ON / OFF mechanism of the microswitch 8 by the handle device 2 will be described.
[0022]
As shown in FIG. 2, the rod portion 20 protrudes from the tip in the X direction on the rotation axis of the handle 21 of the handle device 2. The rod portion 20 is in contact with the switch plate 10 of the micro switch 8, and moves forward and backward based on the locking / unlocking operation of the handle device 2 to turn the micro switch 8 on and off.
[0023]
Hereinafter, the configuration of the handle device 2 will be described with reference to FIGS. 3 and 4.
[0024]
As shown in FIG. 3, the handle device 2 is based on a handle 21 that opens and closes the door panel 1 (see FIG. 1), a lock mechanism 30 that locks the handle device 2, and a locking operation of the lock mechanism 30. A rod mechanism 22 that advances the rod portion 20, a rotary shaft portion 50 that includes the claw fitting 5 (see FIG. 1) and incorporates the rod mechanism 22 and the lock mechanism 30, and the outer periphery of the rotary shaft portion 50 and the lock mechanism 30. And a sleeve 60 that coaxially covers them.
[0025]
The handle 21 is a rod that extends in the Y direction in the locked state, and has a locking portion 23 for inserting a key into the locking mechanism 30 at the upper part of the drawing connected to the mechanism portion of the handle device 2. The part 23 is provided with a cover 24 covering the same. Further, the locking portion 23 is provided with a circular hole 25 (see FIG. 5) into which a cylinder portion 31 described later is inserted.
[0026]
The lock mechanism 30 includes a cylinder portion 31 that is rotated by a key, and a cam mechanism 32 that converts the rotation of the cylinder portion 31 into a linear reciprocating motion of a lock rod 37 described later. The lock mechanism 30 rotates the handle 21 in the closed position. The closed door panel 1 (see FIG. 1) is fixed by disabling it.
[0027]
The cylinder portion 31 is provided on the rotation shaft of the handle 21, and is connected to the cam mechanism 32 at the front end to project a fitting portion 33 that transmits the rotation of the cylinder portion 31 to the cam mechanism 32 and has a key groove 34 at the rear end. (Refer to FIG. 5) and is rotated by a key. As shown in FIG. 4, the fitting portion 33 has a shape in which a pair of planes 40, 40 are provided at the axially symmetric position on the outer periphery of the cylindrical body.
[0028]
The cam mechanism 32 is coaxially connected to the cylinder portion 31 via the fitting portion 33, is engaged with the fitting portion 33 and rotates, and is engaged with the cam 36 to linearly reciprocate. And a lock rod 37 that disables the rotation of the handle 21.
[0029]
As shown in FIG. 4, the cam 36 has a short columnar base 41, a pair of leg portions 42 and 42 that stand on the base 41 and fit into the fitting portion 33, and the base 41 protrudes forward in the X direction and is locked. It has the convex part 44 provided in a row with the collar 37. The pair of leg portions 42, 42 has a flat inner surface that abuts the pair of flat surfaces 40, 40 and an arc-shaped outer surface that coincides with the outer periphery of the base body 41, and is fitted between the pair of leg portions 42, 42. The joint portion 33 is adapted to be fitted. On the other hand, the convex portion 44 is a cylindrical body that is formed eccentrically with respect to the rotation axis and has a smaller diameter than the base body 41.
[0030]
As shown in FIG. 4, the locking rod 37 is a columnar body having a long axis extending in the Y direction, and a rectangular groove 43 extending in the Z direction with which the convex portion 44 of the cam 36 is engaged is formed on the rear surface of the locking rod 37. It is provided across. On the other hand, an engaging projection 39 having a first inclined surface 38 that protrudes in the Y direction and has a semicircular outer periphery and a bottom surface inclined downward from the outer periphery protrudes on the front surface of the locking rod 37. The first inclined surface 38 engages with a second inclined surface 28 formed on the head 26 described later of the rod mechanism 22 to convert the movement of the locking rod 37 in the Y direction into the movement of the rod mechanism 22 in the X direction. . Further, as shown in FIG. 3, the locking rod 37 is inserted through the first insertion hole 51 and the second insertion hole 52 provided in the rotary shaft portion 50 at the time of unlocking, and with the rotation of the cam 36. It moves in the Y direction and its bottom part is dropped into a locking hole 61 provided in the sleeve 60 to make the handle 21 impossible to rotate.
[0031]
As shown in FIG. 4, the rod mechanism 22 includes a rod member 27 having a head portion 26 that engages with an engagement protrusion 39 and a rod portion 20 that extends from the head portion 26, and a locking rod 37. And a spring 29 biasing toward the. The head portion 26 has a substantially cylindrical shape, and a portion that engages with the engagement protrusion 39 is a second inclined surface 28 having the same inclination angle as the inclination angle of the first inclined surface 38. That is, these angles are 45 °. As shown in FIG. 3, the rod portion 20 extends coaxially from the head portion 26 toward the front in the X direction, and the tip of the rod portion 20 penetrates the rotating shaft portion 50 and protrudes outward. The rod portion 20 has a smaller diameter than the head portion 26, and a predetermined step is formed at a portion where the rod portion 20 extends from the head portion 26. The rod mechanism 22 is housed coaxially with the rotary shaft portion 50 in a space formed at the center of the rotary shaft portion 50, and the portion of this space where the outer periphery of the head portion 26 is in contact further forward in the X direction. A spring chamber 45 is provided which extends and is provided with a spring 29. In the unlocked state of the handle device 2 in which the rod portion 20 is retracted, the spring 29 is attached to the spring chamber 45 so as to contact the X-direction front wall and the head portion 26 of this part, In the locked state, the rod member 27 is compressed to urge the rod member 27 toward the locking rod 37.
[0032]
As shown in FIG. 2, the micro switch 8 has a switch plate 10 in contact with the tip of the rod portion 20 that protrudes outward in the unlocked state of the handle device 2, via the switch bracket 9. The handle device 2 is attached. And in the locked state of the handle apparatus 2, the front-end | tip of the rod part 20 advances, presses the switch board 10, and the microswitch 8 is turned ON. As a result, the display lamp 6 of the electric circuit 7 in which the microswitch 8 is incorporated is turned on to indicate that the handle device 2 is locked.
[0033]
Next, an operation method and an operation of the handle device 2 according to the present embodiment will be described.
[0034]
FIG. 1 shows the handle device 2 with the door panel 1 closed in the distribution board door system. When the door panel 1 in the open state is closed and the handle 21 is rotated counterclockwise until it hangs down in the Y direction, The door panel 1 is in a closed state by being locked to the grooved metal 4 of the wall panel 3. In this state, as shown in FIG. 5, the cover 24 of the handle 21 is turned to expose the key groove 34, and a key (not shown) is inserted to rotate. The handle device 2 is locked to disable the rotation of the handle 21 and fixes the door panel 1 in the closed state.
[0035]
A mechanism for locking the handle device 2 with the rotation of the key will be described with reference to FIGS.
[0036]
When the key is rotated, the cylinder portion 31 is rotated and the fitting portion 33 is rotated. At the same time, the cam 36 is rotated. As the cam 36 rotates, the convex portion 44 moves in an arc shape while maintaining the engagement with the rectangular groove 43 of the locking rod 37. That is, this arc-shaped movement appears as a movement in the Z direction in the rectangular groove 43 of the convex portion 44 and a movement in the Y direction of the locking rod 37 via the rectangular groove 43. As a result, the locking rod 37 moves downward in the Y direction and is dropped into the locking hole 61 provided in the sleeve 60. As a result, the locking rod 37 is applied to the rotating shaft portion 50 that is rotated by the rotation of the handle 21 and the sleeve 1 that is fixed to the door panel 1, so that the rotation of the handle 21 becomes impossible and the handle device 2 is locked. The
[0037]
Note that the unlocking of the handle device 2 is completely opposite to the above-described locking operation.
[0038]
The locking operation accompanying the rotation of the key of the handle device 2 simultaneously advances the rod portion 20 (see FIG. 2). As the rod portion 20 advances, the microswitch 8 is turned on, the electric circuit 7 of the display lamp 6 is conducted, and the display lamp 6 is lit.
[0039]
A mechanism for locking the electric circuit 7 by the locking operation of the handle device 2 will be described with reference to FIG.
[0040]
FIG. 6A shows the unlocked state of the handle device 2, and the engaging protrusion 39 protruding from the locking rod 37 and the head 26 of the rod mechanism 22 are connected to the first inclined surface 38 of the engaging protrusion 39. The second inclined surface 28 of the head 26 is engaged over the entire surface. Then, when the key is rotated in the locking direction, as shown in FIG. 6 (B), the locking rod 37 moves downward in the Y direction, and accordingly, the first inclined surface 38 of the engaging protrusion 39 is changed to the second inclined surface 28. The rod member 27 is pushed forward in the X direction against the urging force of the spring 29 (see FIG. 3) by moving downward while pushing. As a result, the rod portion 20 moves forward to turn ON to close the microswitch 8, and the electric circuit 7 is turned on (see FIG. 2).
[0041]
Thus, when the locking of the handle device 2 is completed, the rotation of the handle 21 becomes impossible and the display lamp 6 is turned on, so that the administrator can recognize that the handle device 2 is locked.
[0042]
When the handle device 2 is unlocked, the locking rod 37 moves upward in the Y direction, and the rod member 27 is biased in the direction of retreating by the spring 29, so the first inclined surface 38 of the engaging protrusion 39 and the head The state returns to the state shown in FIG. 6A where the second inclined surface 28 of the portion 26 is engaged over the entire surface. As a result, the rod portion 20 is retracted, the micro switch 8 is turned off, and the display lamp 6 is turned off.
[0043]
In this way, when the handle device 2 is in the unlocked state, the display lamp 6 is turned off, so that the administrator confirms that the handle device 2 is not locked even if the door panel 1 is closed. This can be determined by the lamp, and the situation where the door panel 1 is left without forgetting to lock can be prevented.
[0044]
As described above, the handle device 2 according to the present embodiment is configured only by incorporating the rod mechanism 22 into the handle device having the known lock mechanism 30, so that the design can be easily performed.
[0045]
In this embodiment, the present invention is applied to a distribution board door system. However, the present invention is not limited to this, and can be applied to any equipment having this type of handle device.
[0046]
In the present embodiment, when the handle device 2 is locked, the display lamp 6 is turned on to recognize the locked state. However, when the handle device 2 is in the unlocked state, the display lamp 6 is turned on so that the display lamp 6 is turned on. You may recognize a lock state.
[0047]
Further, what recognizes the locked state or unlocked state of the handle device 2 is not limited to the display lamp 6, and may be a desired voice display or other means.
[0048]
In the present embodiment, the display lamp 6 is provided at a desired location on the distribution board. However, the present invention is not limited to this. For example, when the management of the distribution board is centrally managed in the central management room, A display lamp provided on the management panel may be used.
[0049]
In the present embodiment, the microswitch of the electric circuit is turned on and off. However, the present invention is not limited to this. For example, the switch of the vacuum circuit or the like is closed and opened, and the display means is used for this purpose. Any suitable desired means may be used.
[0050]
The forward and backward movement of the rod portion 20 may be interlocked with other devices other than such display means.
[0051]
The handle device 2 in the present embodiment uses a mechanically connected locking mechanism, cam mechanism, and rod mechanism to advance and retract the rod portion in conjunction with the locking / unlocking operation. The mechanism is not limited to one mechanically connected, and any means may be used as long as the rod part is advanced and retracted in conjunction with the locking / unlocking operation. For example, the locking / unlocking operation of the locking mechanism may be replaced with an electrical signal, and the rod portion may be advanced and retracted by this signal.
【The invention's effect】
Since the present invention is a handle device provided with a rod portion that moves forward and backward with locking / unlocking to operate other devices, the desired other device to be interlocked with locking / unlocking of the steering wheel device is operated. Can do.
[0052]
When the rod mechanism having the rod portion is provided on the rotating shaft of the handle and connected to the lock mechanism, the lock mechanism can be locked and unlocked by simply adding a simple mechanism to the conventional handle device. Since the rod portion can be moved back and forth in conjunction with each other, the design of the handle device is easy.
[0053]
The locking rod is provided with an engaging projection that is connected to the rod mechanism, and the rod mechanism is provided with a rod member having a head portion that engages with the engaging projection and a rod portion and the biasing spring. When the first inclined surface of the engaging projection and the second inclined surface of the head are engaged to convert the linear motion of the locking rod into the linear motion of the rod member, the locking device is compared with the conventional handle device. The handle device according to the present invention is only required by adding a rod member having an engagement protrusion of the rod, a head member engaged therewith, and a rod member having a rod portion extending from the head portion and an urging spring. Therefore, the structure of the handle device is simple and its design is easy.
[0054]
The door system of the present invention in which a micro switch is provided in a handle device provided with a rod portion that moves forward and backward along with locking and unlocking can close and open the micro switch when the door is locked and unlocked. Therefore, the operation of the equipment incorporating this micro switch can be performed in conjunction with the locking / unlocking of the door.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing a use state of a door opening / closing lock handle device.
FIG. 2 is a front view of a lock handle device for opening and closing a door, and a schematic view of a door system incorporating a micro switch.
FIG. 3 is a partially broken front view of the door opening / closing lock handle device.
FIG. 4 is a diagram showing respective components of a lock mechanism and a rod mechanism.
FIG. 5 is a side view of the door opening / closing lock handle device viewed from the keyway side.
FIG. 6 is a schematic diagram for explaining an operation mechanism of a door handle mechanism with a lock for opening and closing a door.
[Explanation of symbols]
1 Door panel (door)
2 Handle device 8 with lock for door opening / closing Micro switch 20 Rod portion 21 Handle 22 Rod mechanism 26 Head portion 27 Rod member 28 Second inclined surface 29 Spring 30 Lock mechanism 31 Cylinder portion 32 Cam mechanism 33 Fitting portion 34 Key groove 36 Cam 37 Locking rod 38 First inclined surface 39 Engaging projection

Claims (3)

In the door opening and closing lock handle device provided with a rotatable door opening and closing handle and a locking mechanism for fixing the closed state of the door,
The handle apparatus, when unlocking the lock mechanism is retracted inwardly of the handle device, the at the time facilities tablets incorporates a rod mechanism having a rod portion for operating the other device to advance to the outside of the handle device ,
The handle device includes a cylinder portion provided on a rotation shaft of the handle and having a fitting portion protruding at a front end and a key groove at a rear end and rotating by a key, and the fitting portion and the cylinder portion. When the cam rotates with the cam rotating, the linear reciprocation in the direction perpendicular to the rotation axis is performed, and the handle cannot be rotated in one direction of the reciprocation. The rod mechanism connected to the locking rod and the locking mechanism including the cam mechanism having a locking rod that enables the handle to rotate in the other direction of movement;
The locking rod has an engaging projection that drives the rod mechanism forward in the rotational axis direction, while the rod mechanism has a head that engages the engaging projection in the rotational axis rear and the head. A rod member having a rod portion extending forward in the rotational axis direction from a portion, and a spring for urging the rod member toward the engagement protrusion, and the locking rod and the rod mechanism are A first inclined surface formed on the engaging protrusion and a second inclined surface formed on the head of the rod mechanism come into contact with each other, and the linear reciprocation of the locking rod is performed in the direction of the rotation axis of the rod member. The handle device is converted into a linear reciprocating motion .   The rod mechanism is provided on a rotating shaft of the handle and is connected to the lock mechanism to advance and retract the rod portion in conjunction with locking and unlocking operations of the lock mechanism. The handle device according to claim 1. Said other apparatus is a said rod portion and opposed to the micro switch provided in the moving direction of the rod portion, the micro switch during forward of the rod portion is closed, during retraction of said rod portion is open The said handle apparatus of Claim 1 or 2 characterized by the above-mentioned.

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