JP3280532B2 - Door lock member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door locking member which is attached to a door which can be opened and closed at the front opening of a cabinet with a distribution board or the like and which is used to lock the door.

[0002]

2. Description of the Related Art Conventionally, door lock members of this type are disclosed in Japanese Utility Model Laid-Open No. 4-119576 and Japanese Utility Model Laid-Open No. 5-125569. For these devices, the connecting shaft is rotatably mounted in a through hole that penetrates the main body case, the handle arranged on the front side of the main body case is connected to the connecting shaft, and arranged substantially parallel to the main body case on the back side of the main case. The lock plate is connected to the connection shaft, and the lock plate is rotated together with the handle and the connection shaft by rotating the handle around the connection shaft to lock or unlock. I have.
In other words, a door lock member is attached to a door that can be opened and closed at the front opening of the cabinet, and when the door is closed and the handle is rotated to project the lock plate in the locking direction, the edge of the opening of the cabinet is opened. A locking plate is located on the back side of the part and is locked.

[0003]

By the way, in the above-mentioned prior art, when the handle is rotated to rotate the lock plate, the lock plate only rotates in a plane parallel to the surface of the door. When the plate is in the locked state, the lock plate often does not adhere to the back side of the edge of the opening of the cabinet, and there is a problem that the door rattles in the locked state.

The present invention has been made in view of the above problems, and an object of the present invention is to lock the lock plate in such a manner that the tip of the lock plate is tilted toward the front surface and the door is rattled. It is an object of the present invention to provide a door locking member which can be locked so that the front opening of the cabinet can be closed by a door without any gap.

[0005]

In order to achieve the above object, a door lock member A according to the present invention has a connecting shaft 13 rotatably mounted in a through hole 50 penetrating through the main body case 1 and a front side of the main body case 1. Is connected to the connecting shaft 13, and the lock plate 2, which is arranged substantially parallel to the main body case 1 on the back side of the main body case 1, is connected to the connecting shaft 13, and the handle 3 is turned around the connecting shaft 13. In a door locking member that rotates and locks or unlocks the locking plate 2 together with the handle 3 and the connecting shaft 13 by movement , the connecting shaft 1 is inserted into an insertion hole 26 provided in the locking plate 2.
3 through the insertion portion 27 at the end on the rear surface side, and
The insertion hole 26 is formed by the flange 25b of the fixing member 25 attached to the end face.
And lock the lock plate 2 to the connecting shaft 13 by pressing the
One of the edge of the insertion hole 26 of the plate 2 and the other of the flange 25b
So that the lock plate 2 can be swung in the front and back directions by point contact with the
The locking plate 2 is provided so that when the locking plate 2 is rotated in the locking direction, the tip of the locking plate 2 goes to the front side.
Characterized by being provided with a tilting means for tilting.

A tilting means is provided on the lock plate 2 so as to protrude to the front side, and a sliding surface 3 is provided on the back surface of the main body case 1 so as to be tilted around the connecting shaft 13.
It is also preferable that the sliding protrusion 32 is slidably abutted on the sliding surface 33. It is also preferable that the sliding protrusion 32 is formed of an elastic material such as rubber or synthetic resin.

[0007]

Further, the lock plate 2 is provided with a rotation angle restricting pin 29 protruding to the front side, and a rotation angle restricting groove 30 is provided on the back surface of the main body case 1 around the connecting shaft 32 to thereby provide the rotation angle restricting pin 29. Is located in the rotation angle regulating groove 30 and the rotation angle of the lock plate 2 is regulated, and the base of the lock plate 2 is connected so that the projecting direction of the lock plate 2 can be reversed by 180 °. It is detachably mounted on the shaft 13, and a pair of pin mounting holes 51 are provided at the base of the lock plate 2 symmetrically around the position of the connection shaft 13, depending on the direction in which the lock plate 2 is connected to the connection shaft 13. It is also preferable that the rotation angle regulating pin 29 is detachably mounted on one of the pair of pin mounting holes 51.

[0009]

According to the above construction, when the lock plate is turned in the locking direction, the front end of the lock plate moves toward the front side.
When the locking plate 2 is turned to the locked state, the tip of the locking plate 2 is tilted toward the surface side when the locking plate 2 is turned to the locked state, and is used for locking the door 4 of the cabinet 45. The lock plate 2 can be brought into close contact with the edge 45a of the cabinet 45, and the opening of the cabinet 45 can be closed without any gap by the door 4 without rattling of the door 4. Chain lock
The insertion hole 26 formed in the plate 2
Inserted through the insertion part 27 and fixed to the end face of the connecting shaft 13
The edge of the insertion hole 26 is pressed by the
The lock plate 2 is connected to the connecting shaft 13, and the insertion hole 26 of the lock plate 2 is
One of the hole edge and the flange portion 25b is in point contact with the other, and a locking plate
2 is a fulcrum projection for supporting the swinging member 2 so that it can swing in the front and back directions.
Is provided so that when the lock plate 2 is tilted,
A lock is made by performing a seesaw motion with the fulcrum projection 31 touching as a fulcrum.
The plate 2 can be smoothly tilted.

[0010] A tilting means is provided on the lock plate 2 so as to protrude to the front side, and a sliding surface 3 is provided on the rear surface of the main body case 1 so as to be tilted around the connecting shaft 13.
When the sliding projection 32 is slidably abutted on the sliding surface 33, the locking lock plate 2 can be locked with a simple structure in which only the sliding projection 32 and the sliding surface 33 are provided. The locking plate 2 can be tilted, and the locking plate 2 can be tilted gradually as the locking plate 2 is rotated in the locking direction, so that locking can be performed smoothly.

If the sliding projections 32 are formed of an elastic material such as rubber or synthetic resin, the sliding projections 32 are smoothly absorbed by elastic deformation even if the dimensional accuracy of the sliding projections 32 is not so high. The locking plate 2 can be tilted, and the locking plate 2 can be tilted so as to elastically press the locking plate 2 toward the front surface side, so that the door 4 can be locked further without rattling .

Further, the direction in which the lock plate 2 projects is 180 °.
The base of the lock plate 2 is detachably mounted on the connecting shaft 13 so that the lock plate 2 can be turned over.
1 is provided symmetrically about the position of the connecting shaft 13, and the rotation angle regulating pin 29 is detachably mounted on one of a pair of pin mounting holes 51 according to the direction in which the lock plate 2 is connected to the connecting shaft 13. When the lock plate 2 is attached, the direction in which the lock plate 2 is attached can be changed so that the door 4 can be freely opened to the left or right. The movement angle can be easily controlled only by changing the pin mounting hole 51 for mounting the rotation angle restriction pin 29.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A door lock member A is mainly composed of a main body case 1, a lock plate 2, a handle 3, and a connecting shaft 13, as shown in FIGS. The main body case 1 is formed in a vertically long rectangular shape, and has a vertically long storage recess 14 opened to the front side. The storage recess 14 stores the vertically long handle 3, and a push button 15 is stored below the storage recess 14. A through hole 50 is formed in the upper part of the storage recess 14 so as to penetrate from the storage recess 14 to the back surface side, and the connecting shaft 13 is rotatably inserted through the through hole 50. A pivot shaft 16 whose axis direction is orthogonal to the coupling shaft 13 is mounted on the storage recess 14 side of the coupling shaft 13, and the base at the upper part of the handle 3 is rotatably connected to the pivot shaft 16. The handle 3 is rotatable in a direction in which the handle 3 moves in and out of the storage recess 14. Also, the handle 3 is taken out of the storage recess 14 and the handle 3 is connected to the connecting shaft 13.
By rotating around, the connecting shaft 13 rotates together with the handle 3. A spring 17 such as a coil spring is interposed between the upper portion of the handle 3 and the end face of the connection shaft 13, and is biased so that the handle 3 projects from the storage recess 14.

At the back of the push button 15 provided in the lower part of the storage recess 14 of the main body case 1, a locking plate 18 which is turned by the pressing of the push button 15 is rotatably mounted. The locking projection 19 is detachable from a locking notch 20 at the lower end of the handle 3. The locking plate 19 is urged by a spring 21 such as a coil spring so as to rotate in a direction in which the locking projection 19 is locked to the locking notch 20, and the push button 15 is formed of a coil spring. It is urged to the front side by a spring 22.
When the push button 15 is pressed, the locking projection 19 and the locking notch 20 are unlocked, and the handle 3 is rotated so as to protrude to the front surface side. When retracted, the locking projection 19 is locked with the locking notch 2
The handle 3 is stored and held in the storage recess 14 by being locked at zero. A lock 23 is provided at a lower portion of the handle 3 so that the lock 23 can be locked and unlocked with a key 24.

A lock plate 2 is arranged on the back side of the main body case 1 so as to be orthogonal to the handle 3, and the base of the lock plate 2 is arranged on the back side of the connecting shaft 13 so that the lock plate 2 The lock plate 2 is fixed by fitting the square hole-shaped insertion hole 26 into the square shaft-shaped insertion portion 27 of the connection shaft 13 and attaching the fixing member 25 to the end surface of the connection shaft 13. In this embodiment, the fixing member 25 is a screw 25a such as a screw, and has a flange 25b having a diameter larger than that of the insertion hole 26 in the head. Lock plate 2
A cap 28 made of rubber, synthetic resin, or the like is attached to the tip of. A pair of pin mounting holes 5 are provided at the base of the lock plate 2.
1 is provided symmetrically with respect to the line so as to be located on both sides of the connecting shaft 13, and is a rotation angle regulating pin 2 made of a screw tool such as a screw.
9 is removably mounted in one of a pair of pin mounting holes 51. A rotation angle regulating groove 30 is provided on the rear surface side of the main body case 1 around the connecting shaft 13 within a range of about 90 ° in the circumferential direction.
9, the rotation angle of the lock plate 2 is regulated. That is, the rotation angle is regulated so that the lock plate 2 can rotate by about 90 °. Then, when the handle 3 is protruded from the storage recess 14 and the handle 3 is rotated around the connection shaft 13, the connection shaft 13 rotates together with the handle 3, and the lock plate 2 rotates together with the connection shaft 13. The locking plate 2 is moved to a locked state in which the locking plate 2 protrudes to the side or an unlocked state in which the locking plate 2 overlaps the main body case 1. When the handle 3 is oriented in a direction parallel to the longitudinal direction of the main body case 1, the locking plate 2 projects sideways to be in a locked state, and when the handle 3 is turned to the side, the locking plate 2 is And is in an unlocked state.

A pair of arc-shaped fulcrum projections 31 are provided at the edges of the rectangular insertion holes 26 of the lock plate 2, and the fulcrum projections 31 are brought into point contact with the flange 25b of the screw 25a. The lock plate 2 can smoothly move the seesaw by a small angle around the fulcrum projection 31 as a fulcrum. The fulcrum projection 31 is provided on the flange 25b of the screw 25a,
The fulcrum projection 31 may be in point contact with the hole edge of the insertion hole 26 of the lock plate 2 so that the lock plate 2 smoothly moves in a seesaw motion. A sliding projection 32 made of an elastic material such as rubber or resin is provided near the rotation angle regulating pin 29 of the lock plate 2, and is inclined around the connection shaft 13 on the back side of the main body case 1. A sliding surface 33 is provided, and the sliding protrusion 32 slides along the sliding surface 33 when the lock plate 2 rotates. When the sliding protrusion 32 slides on the sliding surface 33, the lock plate 2 slightly swings about the fulcrum projection 31 as a fulcrum,
As the lock plate 2 projects to the side, the lock plate 2 tilts toward the front side. The sliding surface 33 is connected to the connecting shaft 1.
A pair of sliding projections 32 are in contact with one of a pair of sliding surfaces 33 so as to be positioned on both sides of the sliding surface 3.

A flange 6 is provided on the outer peripheral surface of the main body case 1 so as to protrude outward over the entire circumference. Locking portions 8 are provided at intervals. In the case of this embodiment, the locking portion 8 at the upper end is formed by the fixed locking body 34 and the locking portion 8 at the lower end.
Is formed by the movable locking member 9. The fixed locking body 34 is fixed by a fixing tool 35 such as a screw, and an insertion gap 36 is formed between the flange 6 and the fixed locking body 34.
An insertion guide surface 37 that is inclined is provided on a surface of the fixed locking body 34 facing the flange 6. As shown in FIG. 12, the movable locking member 9 is mounted on an inclined mounting surface 38 provided on the back surface side of the main body case 1, and the movable locking member 9 is mounted so as to be movable inward and outward. The bottom surface of the movable locking member 9 is an inclined surface 39, and when the movable locking member 9 is attached so that the inclined surface 39 comes into contact with the inclined mounting surface 38, the movable locking member 9 moves in the front-back direction. The moving stopper 9 moves closer to the flange 6 as the moving stopper 9 is moved outward. The movable locking member 9 is formed in a substantially U-shaped cross section having a cavity therein, and a pair of rail grooves 12 are formed on the back surface of the main body case 1.
And edges 9b of both side pieces 9a of the movable locking body 9.
Is slidably inserted into the rail groove 12 to guide and move the movable locking member 9. The screw 11 is inserted into the elongated hole 40 of the movable locking member 9, and the tip of the screw 11 is screwed into the screw hole 41. When the screw 11 is mounted, a spring 42 such as a coil spring is interposed between the flange of the screw 11 and the moving stopper 9 so that the moving stopper 9 projects outward. It is energized. A spacer tube 43 is fitted on the outer periphery of the spring 42. A guide surface 10 is provided on the outer surface of the movable locking member 9 so as to protrude outward toward the front side.

In a device such as a distribution board, a door 4 is attached to the front opening of the cabinet 45 so as to be openable and closable, and a vertically long rectangular mounting opening 5 is provided at a position near one side of the door 4. Is provided. And door lock member A
Is attached to the door 4 as follows. The handle 3 is projected to the front side and the handle 3 is turned sideways so that the lock plate 2 is overlaid on the back side of the main body case 1 and the screw 11 is loosened, and the front side of the door 4 is Then, the door lock member A is inserted into the mounting opening 5. At this time, as shown in FIG. 15, the upper part of the door locking member A is first inserted into the mounting opening 5, and the upper part of the opening edge 7 of the mounting opening 5 is inserted into the insertion gap 36 and fixed to the back surface of the opening edge 7. The locking body 34 is locked. When the lower portion of the door lock member A is pushed into the back side from this state, the guide surface 10 of the movable locking member 9 contacts the lower opening edge 7 as shown in FIG. 9 moves inward. When the pusher is further pushed in from this state, the movable stopper 9 moves beyond the opening edge 7 and moves outward by the urging force of the spring 42, as shown in FIG. 7 on the back side. In this state, the screw 11 is tightened as shown in FIG. 18 so that the movable locking member 9 is fixed so as not to move, and the door lock member A is attached to the door 4. In the case of this embodiment, when the movable locking body 9 moves outward, the moving locking body 9 also moves to the front side, and the moving locking body 9 is strongly locked to the back side of the opening edge 7.

The door lock member A is attached to the door 4 as described above, and the handle 3 is rotated about the connection shaft 13 with the handle 3 protruding to the front side, so that the handle 3 is joined with the connection shaft 13. The lock plate 2 can be rotated to lock or unlock. When the handle 3 is turned so as to turn in the horizontal direction, the lock is unlocked. When the handle 3 is turned so as to overlap the front side of the main body case 1, the lock plate 2 projects to the side and the lock plate 2
1 is the edge 45 of the cabinet 45 as shown in FIG.
a and locked. When the lock plate 2 is rotated in the locking direction, the lock plate 2 tilts so that the tip of the lock plate 2 gradually approaches the surface side in order to ride on the sliding surface 33 on which the sliding protrusion 32 is inclined. Then, as shown in FIG. 1, in the locked state, the tip of the lock plate 2 is brought into contact with the edge portion 45a so as to be in close contact therewith,
The door 4 is locked so as not to rattle. By pushing the handle 3 to the back side in the locked state, the handle 3 is stored in the storage recess 14 of the main body case 1, locked by the locking plate 18, and stored and held.

FIGS. 1 to 9 show a door locking member A attached to a right-opening door 4. In the locked state, the locking plate 2 protrudes to the left when viewed from the front. It can be mounted, but by changing the mounting direction of the lock plate 2 by 180 °, the same door lock member A can be used for the left-opening door 4 so that the left and right can be freely operated. That is, as shown in FIGS. 10 and 11, the lock plate 2 can be attached so that the lock plate 2 projects rightward when viewed from the front in the locked state. When changing the direction of the lock plate 2, the screw 25a is removed and the lock plate 2 is removed with respect to the connection shaft 13, and the direction in which the square hole-like insertion hole 26 is fitted into the square shaft-like insertion portion 27 is changed. Change 180 °. Even if the direction of the lock plate 2 is changed in this way, since the pair of sliding surfaces 33 are provided at the position of line symmetry, the sliding protrusion 32 slides on one of the slide surfaces 33 and the lock plate 2 The lock plate 2 can be tilted as it is rotated in the locking direction. As described above, the direction of the lock plate 2 can be freely changed left and right. However, since the rotation angle restriction groove 30 can be provided only at one position, it is necessary to change the position of the rotation angle restriction pin 29. The position of the rotation angle regulating pin 29 can be easily changed as follows. That is, a pair of pin mounting holes 51 are provided symmetrically, and a rotation angle restriction pin 29 made of a screw tool such as a screw is detachably mounted in the pin mounting hole 51, and the rotation angle restriction pin 29 is By selecting the pin mounting hole 51 to be mounted, the position of the rotation angle regulating pin 29 can be adjusted to the left or right. Therefore, the same door locking member A can be used for a right-opening door as shown in FIGS.
It can be easily handled by using it for left-opening doors like.

In the present embodiment, the lock plate 2 is locked to the edge 45a of the cabinet 45 when the door 4 is closed and the lock plate 4 is locked. In the case where the pair of doors 4 are provided in a double-opened manner, the door locking member A provided on one of the doors 4 may be locked to the edge of the other door 4.

[0022]

As described above, the present invention is provided with a tilting means for tilting the lock plate so that the tip of the lock plate moves toward the front side when the lock plate rotates in the locking direction. When the board is turned to the locked state, the tip of the lock board is tilted so as to go to the front side, and when used for locking the cabinet door, the lock board can be brought into close contact with the edge of the cabinet. Therefore, the door can be locked so that the door does not rattle, and the opening of the cabinet can be closed without any gap by the door. Also
Insertion part at the end on the back side of the connecting shaft to the insertion hole provided in the lock plate
And insert it with the flange of the fixed member attached to the end face of the connecting shaft.
Hold down the hole edge of the through hole and connect the lock plate to the connection shaft.
One of the hole edge and the flange of the insertion hole of
The fulcrum that supports the lock plate so that it can swing
Because it is provided, the fulcrum that makes point contact when the lock plate tilts
Performing seesaw movement with the fulcrum as the fulcrum, the tilt of the lock plate is smooth.
Can be made

In the invention according to claim 2 of the present invention, the tilting means is provided on a sliding projection mounted on the lock plate so as to protrude to the front side, and on the back surface of the main body case around the connecting shaft. The sliding projection is slidably abutted against the sliding surface, so it has a simple structure that only requires the sliding projection and the sliding surface. The locking plate can be tilted, and the locking plate can be tilted gradually as the locking plate is rotated in the locking direction, so that locking can be performed smoothly.

According to the third aspect of the present invention, since the sliding projections are formed of an elastic material such as rubber or synthetic resin, the dimensional accuracy of the sliding projections is not so high. However, the lock plate can be tilted smoothly by absorbing it by elastic deformation, and the lock plate can be tilted so as to elastically press it to the surface side, so that the door is further opened. It can be locked so that it does not stick.

[0025]

Further, in the invention according to claim 4 of the present invention, the base of the lock plate is detachably mounted on the connecting shaft so that the projecting direction of the lock plate can be reversed by 180 °. A pair of pin mounting holes are provided symmetrically around the position of the connecting shaft at the base of the connector. Since the lock plate is attached to the door, the direction in which the lock plate is attached can be changed so that it can respond to both left and right doors freely, and even if the lock plate can be turned left and right freely, The rotation angle can be easily adjusted only by changing a pin mounting hole for mounting the rotation angle restriction pin.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a partially cutaway front view of the same.

FIG. 4 is a front view of the same.

FIG. 5 is a side view of the same.

FIG. 6 is a partially cutaway perspective view showing the door locking member and the door of the above.

FIG. 7 is an exploded perspective view of the door lock member.

FIG. 8 is a rear view of the door lock member in the locked state according to the embodiment.

FIG. 9 is a rear view of the door lock member in the unlocked state according to the third embodiment.

FIG. 10 is a rear view of the door locking member in a locked state where the direction of the locking plate is reversed from that of FIG. 8;

FIG. 11 is a rear view of the door lock member in the unlocked state according to the third embodiment.

FIG. 12 is an exploded perspective view of a locking portion having the same movable locking body.

FIG. 13 is an exploded perspective view showing the handle and the connection shaft of the same.

14A and 14B show a connection portion between the handle and the connection shaft, in which FIG. 14A is a cross-sectional view in which the handle is stored, and FIG.
FIG. 4 is a cross-sectional view of a state where a handle is projected.

FIG. 15 is a cross-sectional view illustrating a state where the door lock member is attached.

FIG. 16 is a cross-sectional view illustrating a state where the door lock member is attached.

FIG. 17 is a cross-sectional view illustrating a state where the door lock member is attached.

FIG. 18 is a cross-sectional view illustrating a state where the door lock member is attached.

[Explanation of symbols]

 A Door Locking Member 1 Body Case 2 Locking Plate 3 Handle 4 Door 13 Connecting Shaft 25 Fixing Member 25a Screw 25b Flange 26 Insertion Hole 27 Insertion Portion 29 Rotation Angle Restriction Pin 30 Rotation Angle Restriction Groove 31 Support Point Projection 32 Sliding protrusion 33 Sliding surface 50 Through hole 51 Pin mounting hole

Continued on the front page (56) References JP-A 5-12569 (JP, U) JP-A 48-50751 (JP, U) JP-A 57-168659 (JP, U) JP-A 63-152869 (JP) , U) Hikaru 4-119576 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 5/02 E05C 1/12 H05K 5/03

Claims (4)

(57) [Claims] 1. A connecting shaft is rotatably mounted in a through-hole penetrating the main body case, a handle disposed on a front side of the main body case is connected to the connecting shaft, and a rear surface of the main body case is substantially parallel to the main body case. Connect the placed lock plate to the connection shaft,
In a door locking member that rotates and locks or unlocks the lock plate together with the handle and the connection shaft by rotation of the handle around the connection shaft, the connection shaft is inserted into the insertion hole provided in the lock plate. Back side
And fixed to the end face of the connecting shaft
Hold the edge of the insertion hole with the flange of the member and attach the lock plate to the connection shaft.
Connected to one of the edge of the insertion hole of the lock plate and the flange
Supports the lock plate so that it can swing in the front and back directions at point contact with
A door locking member comprising: a fulcrum projection; and a tilting means for tilting the locking plate so that the tip of the locking plate goes to the front side when the locking plate is rotated in the locking direction. . 2. A tilting means comprising a sliding projection mounted on a locking plate so as to protrude toward the front side, and a sliding surface provided to be tilted on the back surface of the main body case around the connecting shaft. 2. A door lock member according to claim 1, wherein said sliding projection is slidably abutted on a sliding surface. 3. The door lock member according to claim 2, wherein the sliding projection is formed of an elastic material such as rubber or synthetic resin. 4. A rotation angle restricting protruding surface side of the lock plate.
A pin is provided on the back of the case around the connecting shaft.
A rotation angle restriction groove is provided, and the rotation angle restriction pin is
The rotation angle of the lock plate is restricted in the groove.
In this case, the direction in which the lock plate protrudes can be reversed by 180 °.
Attach the base of the lock plate to the connecting shaft
A pair of pin mounting holes at the base of
Symmetrically provided, depending on the direction in which the lock plate is connected to the connection shaft,
A rotation angle regulating pin is attached to one of the pin mounting holes.
2. The device according to claim 1, wherein the device is detachably mounted.
The door lock member according to claim 2 or 3 .