JP3491567B2 - Door closure - 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 closing tool that can close and open a door of a box by rotating an operating body.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 15, a door 110 of a box body such as a distribution board is provided with a locking plate 104 by rotating an operating body 103 protruding from the surface of the door 110.
A door closing tool 101 is used to close and open the door 110 to and from the door 110 by opening and closing the door 110. In this conventional door closing tool 101, the operating body 1 pivotally supported by the door 110
A lock plate 104 is fixed to the base of 03, and the lock plate 104 is interlocked with the rotation operation of the operation body 103 to move the operation body 1
It rotates about the fixed part with 03. Therefore, the lock plate 10
The front end of 4 slides in and out from the end surface of the door 110 by drawing an arcuate locus around the fixed portion and sliding. The operating body 103 of the conventional door closing tool 101 is composed of a shaft portion 103a and a handle portion 103b, as shown in the figure.

[0003]

However, in the above-mentioned conventional technique, the operating body 103 has the shaft portion 103a.
And the handle portion 103b connected to it and extending to one side
When the opening direction of the door 110 is changed, if the door closing tool 101 shown in the figure is attached as it is, the handle portion 103b of the operation portion 103 is reversed and the usability is poor. Can not do it.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a door closing device for closing a door of a box, which can be opened to the right or left. It is to provide a door closing device that can be.

[0005]

In order to achieve the above object, in the door closing device of the present invention, a storage portion communicating from the front side to the back side is formed, and the door closing device is attached in a state of penetrating the door. A case, an operating body which is disposed in the housing of the case and is rotatable around the communication direction of the housing as a central axis, and has a column-shaped front end portion, and which projects in association with a rotational operation of the operating body. A door closing device is provided by providing a movable locking plate that retreats to close and open the door.

According to this door closing tool, since the front end portion of the operating body is formed in a columnar shape, the case and the operating body can be turned upside down when mounted on either the right side or the left side of the door. You can

Further, the operation body has a front end portion
The protruding operation position and almost the entire operation position are stored in the case.
The stored position and the front end of the operating body.
It can be switched more freely, and on the front of the operating body ,
When locking plate is in the extended position has a locking hole of the key to prevent the rotation operation of the operation body and rotating locking part of the formation of free
Has been .

According to this door closing tool, the front side of the operating body
With the simple operation of pushing the end part, whether the operating body is the storage part
From the operating position that protrudes from the storage position inside the storage unit
Can be switched, and the operating body can be fixed by locking by rotating the key.

Further, the operating body is provided in a storage portion and drives a locking plate, an operating body, and a locking portion having a locking hole provided on a front side of the operating body, A front cover which has an insertion hole through which a key is inserted corresponding to the locking hole of the locking portion and which holds the locking portion rotatably between itself and the operating body, wherein the insertion hole is A large diameter part that allows the tip of the key to pass through the insertion hole when in the locked and unlocked positions, and the tip of the key that passes through the insertion hole when the locking part is in a position other than the locked and unlocked positions It is also preferable that it is formed in a shape having a small diameter portion that makes impossible.

According to this door closing device, when the key is inserted into the locking hole and the locking or unlocking operation is performed, the key can be removed from the locking hole when the locking portion is at a position other than the locking position and the unlocking position. I can't. Therefore, when the key is operated, the locked position and the unlocked position can be clearly distinguished.

Further, an identification hole is formed in the front cover, and the locking portion is provided with an identification display for identifying the locking portion in the locked position and the unlocked position facing the identification hole. It is also preferable that

According to this door closing device, the locked position and the unlocked position of the key can be easily discriminated.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Regarding one embodiment of the present invention,
Description will be made with reference to FIGS. The door closure 1 of the present embodiment forms a storage portion S that communicates from the front surface side to the back surface side, and is attached in a state of penetrating the door 2 in a case 7
0 and the storage portion S of the case 70 disposed in the storage portion S.
The operation body 10 having a cylindrical front end that is rotatable about the communication direction of the center axis, and the movable body 10 that projects and retracts in conjunction with the rotation operation of the operation body 10 to close and open the door 2 And a locking plate 61.

The door closing tool 1 is attached to a door 2 of a distribution board as shown in FIG. 5, for example. As shown in FIG. 5B, the door 2 is formed so that its surface draws a curved surface, and the door closing tool 1 is attached near the end of the door 2. The door 2 is formed by bending a metal plate. As shown in FIG. 3, the side plate 5 of the door 2 is also formed by bending the metal plate so as to extend to the side surface of the door 2. Door 2
Is attached so as to cover the peripheral edge of the opening of the box 6. A lock plate insertion hole 3 and a lock hole 4 through which a lock plate 61 penetrates are provided in the side plate 5 of the door 2 and the opening edge of the box body 6, respectively, and the lock plate 61 of the door stopper 1 is provided. When the lock plate 61 is in the protruding position, the locking plate 61 closes the door 2 by penetrating the side plate 5 of the door 2 and the closing hole 4 formed in the box body 6. As shown in FIGS. 2 and 4, since the lock plate 61 slides in the linear direction,
The locking plate insertion hole 3 and the closing hole 4 have substantially the same shape as the vertical cross section of the locking plate 61 so that the locking plate 61 can be penetrated in the lateral direction.

The door closing tool 1 includes an operating body 10 and an operating body 10.
And a case 70 that stores the The operating body 10 is rotated so that the locking plate 6 is moved.
1 is to be projected and retracted, and the operation position where the front end portion thereof is projected and substantially the entire operation body 10 are the case 70.
It can be switched between the storage position stored inside by pushing the front end of the operating body 10. The operating body 10 includes an operating body 30, a front cover 11 attached to the front end of the operating body 30, and a locking portion 21 provided inside the front cover 11. These will be described in order.

As shown in FIG. 6, the operating body main body 30 includes an operating body main body base 31 having a pair of ear pieces 35 formed on the outer periphery thereof and a double circular wall 32 formed on the upper surface thereof, and a longitudinal direction. A plurality of extending engaging teeth 42 are formed, and are composed of a cylindrical operating body main body tip portion 41.

The operation body main body base 31 has a disk-like shape with a depressed lower surface, and an ear piece 35 projecting in a substantially rectangular shape is formed on the outer periphery of the operation body main body 31 at a symmetrical position with the center thereof facing outward. There is. The ear piece 35 is formed so as to project outward from the storage portion S of the case 70.

The outer diameter of the disc-shaped operating body main body 31 is substantially the same as the inner diameter of the inner peripheral wall 76 of the accommodating portion S, and when the operating body 10 is pressed, the inner peripheral wall 76 guides the accommodating portion. Slide inside S. As shown in FIG. 6, a double circular wall 32 is erected on the upper surface of the operation body main body base 31, and the outer circular wall 32a and the inner circular wall 32b are located at corresponding positions. The notch 33 is formed. Further, a low height portion 36 is formed on the inner side of the circular wall 32b on the opposite side of the cutout portion 33 over approximately 180 degrees.

The front cover 11 is fitted on the outer side of the outer circular wall 32a. As shown in FIG. 8A, elastic engagement pieces 34 are formed at two locations on the outer circular wall 32 a, and the elastic engagement pieces 34 are squares formed on the side surface of the front cover 11. Engages with the engaging hole 17 of. This allows
The front cover 11 can be easily attached to the operation body 35, and the front cover 11 can be securely fixed.

As shown in FIG. 8, the distal end portion 41 of the main body of the operating body has a cylindrical shape, and the operating body 1 is located near the entrance inside the operating body.
A step portion 44 is formed to which one end of a coil spring 46 that urges 0 toward the front surface side of the door 2 abuts. In addition, in the vicinity of the step portion 44, a cylindrical engagement protrusion 43 as shown in FIG.
Are formed in pairs. Further, at the bottom inside the distal end portion 41 of the cylindrical operating body, there are provided four driving teeth 45, which are pressed into contact with the ends of the spindle 51 inserted therein and rotate the spindle 51, which are substantially right-angled triangles in a front view. Has been. Further, the engagement protrusion 43 engages with the engaged protrusion 53 formed on the surface of the spindle 51 to hold the operating body 10 in the storage S. In addition, a plurality of engaging teeth 4 extending in the longitudinal direction are provided on one side of the front surface of the operation body main body 41.
2 is formed.

The locking portion 21 has a disk-shaped front plate 22, a cam 25 formed on the back surface thereof, and a locking hole 24 formed on the front surface of the front plate 22 and into which a tip of a key is inserted.
This front plate is rotatably inserted inside the outer circular wall 32a, and at the same time, a cam 25 is inserted into the inner circular wall 32b as shown in FIG. In the notch 33 of the circular wall 32, a locking rod 29 that abuts and comes in contact with the cam 25.
Is provided. Further, as shown in FIG. 9, a locking rod 29 is arranged on the back side, and a spring 27 is arranged between the forked ends of the locking rod 29. This spring 27
It is provided so as to push the space between the front cover 11 and the base of the locking rod 29, and urges the locking rod 29 in the retracted direction.

The cam 25 has a shape as shown in FIG. 9, and when the locking portion 21 is in the locking position, it is as shown in FIG.
As shown in FIG. 3, the contact projection 28 at the rear end of the locking rod 29 comes into contact with the side where the cam 25 bulges, the locking rod 29 projects, and the locking portion 21 is in the unlocked position. As shown in FIG. 9B, the abutment protrusion 28 at the rear end of the locking rod 29 contacts the side where the cam 25 is depressed, and the locking rod 29 is retracted. At this time,
Since the locking rod 29 is biased in the retracting direction by the spring 27, the biasing force can surely retract the locking rod 29, and the tip of the contact projection 28 is U-shaped. Since it is formed, it is possible to smoothly move the locking rod 29 in and out.

The front plate 22 of the locking portion 21 is provided with an identification mark 23 facing the identification hole 12 of the front cover 11. In the present embodiment, this is configured by coloring the positions shown by hatching in FIG. When the locking portion 21 is rotated and is in the unlocked position, the identification mark 23 is recognized from the identification hole 12 of the front cover 11 and the color is set to a color such as red to draw the attention. You can clarify that you are in a position. The locking hole 24 is formed in an elongated shape corresponding to the tip shape of the key.

A front cover 11 at the front end of the operating body 10
6 has a cylindrical cap shape as shown in FIG. 6, and an insertion hole 14 corresponding to the locking hole 24 of the locking portion 21 is formed on the front surface thereof, and the insertion hole 14 is formed in the locking hole 21. When the key is in the locked position and the unlocked position, the key tip is the insertion hole 1
4 has a shape having a large diameter portion 16 which can be inserted into 4 and a small diameter portion 15 in which the tip of the key cannot be inserted into the insertion hole 14 when the locking portion 21 is at a position other than the locking position and the unlocking position. Has been formed. The shape of the insertion hole 14 is as shown in FIG. 10, and when the locking portion 21 is in the locking position or the unlocked position rotated by 180 degrees, the entire locking hole 24 is located in the large diameter portion 16 and the lock of the key. It can be inserted and removed, and when the locking portion 21 is rotating from the locking position to the unlocking position, one end of the elongated locking hole 24 is covered with the small diameter portion 15 as shown by a broken line in the figure. At this time, by forming a notch at a position corresponding to the small diameter portion 15 on one side surface of the key, the notch and the small diameter portion 15 are engaged with each other when the key is in the process of rotating from the locking position to the unlocking position. Therefore, it is impossible to remove the key, and when the key is operated, the locked position and the unlocked position are clarified, and the locking and unlocking can be reliably performed.

FIG. 11 shows an example of the key 18. Where 1
9 is a notch, the tip side from the notch 19 is enlarged as shown, and the key 1
8 cannot be inserted or removed.

As shown in FIG.
A stopper 26 constituted by a prismatic protrusion as shown in FIG. 3 is formed, and the stopper 26 moves above the low height portion 36 formed on the inner circular wall 32b. When the locking portion 21 is in the locking position or the unlocking position, the stopper 26 contacts the end surface of the inner circular wall 32b formed at the standard height, and the locking portion 21 exceeds the locking position or the unlocking position. Is prevented from rotating.

As shown in FIG. 6, the side surface of the front cover 11 on the front end side is provided with an uneven and substantially saw-toothed slip preventing portion 13. As a result, when the operating body 10 is rotated, it becomes difficult to slip, the rotating operation of the operating body 10 is facilitated, and the door 2 can be easily closed and opened.

Further, the front cover 11 is formed with an identification hole 12 formed of a circular through hole, and the identification display 23 can be confirmed from the identification hole 12. The shape of the identification hole 12 and the identification display 23 are not limited to this, and for example,
Characters such as “lock” and “unlock” may be described as the identification display 23, and the square identification hole 12 may be formed so that the identification can be confirmed.

As described above, the spindle 51 and the coil spring 46 shown in FIG.
Is interpolated. The coil spring 46 is provided at the tip 4 of the operating body.
When the operating body 10 is in the operating state, the coil spring 46 has one end abutting on the step portion 44 inside the operating body main body tip 41 and the other end being the case. 7
By abutting on the bottom portion 83 of 0, the operating body 10 is biased in the protruding direction. Further, when the operating body 10 is in the stored state, the coil spring 46 is held in a compressed state by the step portion 44 of the operating body 10.

The spindle 51 has a bottom portion 83 of the case 70.
A spire-shaped tip portion is fitted and fixed in the circular fitting hole 89 formed in the. The outer diameter between the engaged projections 53, 53 on the surface of the spindle 51 and the inner diameter on the bottom side of the stepped portion 44 of the cylindrical operation body main body 41 are substantially the same, and the spindle 51 is connected to the operation body 10. The operating body 10 is held by the spindle 51 and does not rattle by being inserted into the inside of the. At this time, the spindle 51 acts as a rattling prevention unit that prevents rattling of the operating body 10.

At the end of the spindle 51, a drive bevel 52 is formed on which the drive teeth 45 inside the operating body 10 are pressed. When the operating body 10 is pressed rearward, the drive teeth 45
Are pressed against the drive slope 52, the tips of the drive teeth 45 slide on the drive slope 52, and the spindle 51 rotates.

The lock plate 61 has a rectangular outer shape in a plan view, and is inserted into a lock plate insertion opening 88 provided in the case 70. Further, the lock plate 61 has an operation body insertion hole 63 formed in the center thereof, and the operation body main body front end portion 41 penetrates through the lock plate 61. As shown in FIG. 6, the operating body insertion hole 63 is formed in a long hole shape, and the operating body 1 is provided on one side of the operating body insertion hole 63.
Engaging receiving teeth 62 that engage with the engaging teeth 42 of 0 are formed. The width of the operating body insertion hole 63 in the lateral direction is substantially equal to the outer diameter of the operating body main body front end portion 41, and the operating body main body front end portion 4 is
The engaging tooth 42 of 1 and the engaging tooth 62 do not separate,
These engagements are reliable.

By rotating the operating body 10, the engaging receiving teeth 62 engaged with the engaging teeth 42 are driven, and the locking plate 61 is driven.
Slides linearly between the protruding and retracted positions,
The number of the engaging teeth 42 and the number of the engaging receiving teeth 62 are the same, and the engaging teeth 42 and the engaging receiving teeth 6 located at the respective ends thereof.
By assembling so as to engage with 2, the position of the operating body 10 can be made constant when the locking plate 61 is in the protruding position or the retracted position. One end of the locking plate 61 penetrates the closing hole 4 of the box body 6 at the protruding position, and at this time, a taper 64 is formed at the end portion so that it can penetrate smoothly.

The case 70 includes a case body 71 and a lid 91.
It is composed by. Here, the case main body 71 forms the back side of the storage section S that communicates from the front side to the back side thereof, and the hook section 8 surrounds the storage section S.
4 is formed, and is disposed on the back side of the door 2 with the front side of the storage section S and the hooking section 84 being positioned in the through hole 7 formed in the door 2. On the other hand, the lid 91 forms the front surface side of the storage section S, and engages with the periphery of the through hole 7 of the door 2 and the case body 71 from the front surface side of the door 2.
It has a hooked portion 94 to be hooked on the hooking portion 84, and is attached to the case body 71 in a state in which the operating body 10 is prevented from coming off.

The case body 71, as shown in FIG.
A bottomed cylindrical case body lower end portion 87 and a locking plate insertion hole forming portion 82 that is located above the case body lower end portion 87 and forms the periphery of a locking plate insertion hole 88 through which the locking plate 61 penetrates.
And an annular inner peripheral wall 76 located above the locking plate insertion opening forming portion 82 and an annular mounting wall 80 located outside thereof and forming a hook portion 84. The inner peripheral wall 76 and the lower end portion 87 of the case main body form the back side of the storage section S in which the operating body 10 is stored.

At the lower end 87 of the bottomed cylindrical case body,
A pedestal 85 is formed on the bottom and a fitting hole 89 is formed in the center thereof. The spear-shaped tip of the spindle 51 is fitted into the fitting hole 89 of the pedestal 85, and the spindle 5
Holds 1.

A reinforcing rib 86 as shown in FIG. 12B is formed between the lower end portion 87 of the case body and the locking plate insertion opening forming portion 82. The locking plate insertion opening forming portion 82 is substantially rectangular in a plan view as shown in FIG. 12 (a), and a locking plate insertion opening 88 having a sectional shape shown in FIG. 12 (c) is formed so as to penetrate therethrough. Has been formed. The locking plate 61 is arranged so as to penetrate the locking plate insertion opening 88, is held by the locking plate insertion opening forming portion 82, and is slidable in the linear direction.

The inner peripheral wall 76 is in the shape of a ring with a part cut away, and the locking plate 61 is provided at the tip of the inner peripheral wall 76.
When the ear is in the protruding position and the retracted position, respectively.
And a rotation blocking portion 73 for blocking the rotation of the operating body 10
Are formed. In addition, one rotation blocking portion 73a with which the ear piece 35 abuts in a state where the locking plate 61 is in the protruding position,
One side 79a of the guide groove that guides the ear piece 35 when the operating body 10 is projected and retracted is provided continuously, and the other rotation that the ear piece 35 contacts while the locking plate 61 is in the retracted position. From the blocking portion 73b to the other side 79b of the guide groove, there is formed a rotation guide wall 77 that guides the ear piece 35 and holds the operating body 10 at the protruding position.

Further, the rotation blocking portion 73 is formed with a pair of fixing holes 74 into which the locking rods 29 of the locking portion 21 are inserted. Although the upper end of the fixing hole 74 is open, it is closed by attaching the lid 91. In the locking position where the locking rod 29 projects and is inserted into the fixing hole 74, the locking rod 29 and the fixing hole 74 engage with each other to prevent the operating body 10 in the storage position from rotating and projecting. You can

The mounting wall 80 is formed in an annular shape so as to surround the outer side of the inner peripheral wall 76 as described above. Mounting wall 80
A hooking portion 84 formed of a square hole is formed in the.
The hooked portion 84 is engaged with a hooked portion 94 of a lid body 91 described later. In addition, recesses 81 are formed at four locations on the mounting wall 80, and projections 93 arranged at corresponding positions on the back surface side of the lid 91 are fitted therein.

The lid 91 is, as shown in FIG. 13, a lid 91.
Lid body 95 that forms the front side of the door, edge portion 92 that penetrates through hole 7 of door 2, and hook portion 8 of case body 71.
4 is constituted by a hooked portion 94 that engages with 4.

The outside of the front surface of the lid main body 95 is gradually inclined toward the front surface side of the door 2. Thereby, the operating body 10
It becomes difficult for a finger to touch the lid 91 when rotating the operation body, and the rotation operation of the operation body 10 becomes easy. Lid body 95
A through hole having a step 96 is formed in the inside of, and forms the front surface side of the storage section S. The tip of the inner peripheral wall 76 of the case body 71 is brought into contact with the step 96.

An annular edge portion 92 is formed on the back surface of the lid 91, a part of which is cut away, and a wedge-shaped hooked portion 94 is formed at the tip thereof. The edge portion 92 is fitted onto the outside of the inner peripheral wall 76 in the assembled state.
The tip of the edge portion 92 holds the ear piece 35 with the tip of the rotation guide wall 77. At this time, the edge portion 92
A gap is formed between the rotation guide wall 77 and the rotation guide wall 77 so that the ear piece 35 can freely slide. When the operation body 10 is rotated, the ear piece 35 slides in the gap. . Thereby, the operation body 10 can be smoothly rotated.

The hooked portion 94 of the lid 91 is engaged with the hooked portion 84 of the case body 71 to be integrated with the case body 71. Further, a U-shaped notch 8 is also formed in the through hole of the door 2 at a position corresponding to the hooked portion 94. Further, on the back surface of the lid 91, convex portions 93 that fit into the concave portions 81 of the case body 71 are formed at four locations. Convex part 9
3 is fitted in the recess 81 and is also inserted in the recess 9 formed around the through hole of the door 2. This allows
It is possible to prevent the lid 91 and the case main body 71 from rotating with respect to the door 2, and it is possible to make the mounting direction of the door closing tool 1 constant.

The procedure for assembling the door closing tool 1 will be described. First, the lock plate 61 is laterally inserted into the lock plate insertion opening 88 of the case body 71. Next, spindle 5
1 and the coil spring 46 are arranged inside the case body 71. Subsequently, the locking portion 21, the spring 27, and the locking rod 2 are previously provided.
The operating body 10 in which 9 is arranged in the front cover 11 is arranged in the case body 71. At this time, the spindle 51
Is inserted into the cylindrical operation body main body front end portion 41 of the operation body 10, and the tip of the operation body 10 is axially supported by this, and rattling can be prevented. Further, when inserting the operating body 10, the engaging teeth 42 formed on the operating body 10 and the engaging receiving teeth 62 of the locking plate 61 are engaged. Then, the case body 71 and the operating body 10 are brought into contact with the door 2 from the back surface side. Then, the lid 91 is attached from the front surface side of the door 2, and the attachment of the door closing tool 1 is completed. When attaching this lid 91,
The hooked portion 94 of the lid 91 is replaced with the hooked portion 8 of the case body 71.
Since the work is completed only by engaging with 4, the mounting work is easy.

Next, the movement of the operating body 10 will be described with reference to FIG. 1 focusing on the movement of the ear piece 35. When the operating body 10 is in the storage state where it is located in the storage section S, the ear piece 35 is located in the guide groove 79 and below in the figure. At this time, the locking plate 61 engaged with the operating body 10 is located at the protruding position, and the door 2 is closed. When the operating body 10 is pressed, the spindle 51 rotates and the spindle 51
The operating body 10 that has been locked to is released and the operating body 10 is pushed out by the compressed coil spring 46. At that time, the ear piece 35 once advances downward in the guide groove 79, and then the front surface side. Slide to. FIG. 1 shows the state at that time. At this time, one side surface of the ear piece 35 is
The operation body 10 is in contact with one of the rotation preventing portions 73a and can rotate only in the clockwise direction. When the operating body 10 is rotated clockwise, the ear piece 35 slides along the upper end surface of the rotation guide wall 77 and comes into contact with the other rotation blocking portion 73b. At this time, the locking plate 61 engaged with the engaging teeth 42 of the operating body 10 is driven to the retracted position (see FIG. 2).
(B)), the door 2 is opened. Further, in the operation, since the ear piece 35 projects outward from the inner wall of the storage section S and abuts on the rotation guide wall 77, the operating body 10 does not move in the retracted direction unexpectedly. Is easy.

The operating body 10 of this embodiment is the operating body 10
Each time the front end of the front side is pushed in, the front side is held at the operation position protruding from the storage section or the storage position stored in the storage section. This is performed by engaging and disengaging the engaging projections 43 and the engaged projections 53 on the surface of the spindle 51. The movement will be described with reference to FIG.

14A to 14C show the positional relationship between the end surface 43a of the engaging projection and the engaged projection 53 of the spindle 51 when the operating body 10 moves from the housed state to the operated state. Is shown. FIG. 14A shows the position of the end surface 43 a of the engaging projection when the operating body 10 is in the storage position. The engaging projection 43 engages with the locking step 54 of the engaged projection 53. However, the operation body 10 is restricted from moving in the protruding direction (position A (symbol in each figure is shown; the same applies hereinafter)). At this time, the coil spring 46 is in a state of being compressed by the step portion 44 of the operating body 10. As shown in FIG. 14B, when the operating body 10 in the storage position is further pressed, the end surface 43a of the engaging protrusion slides further downward (position B), and the driving teeth 45
Is pressed against the driving slope 52 to rotate the spindle 51, and the end surface 43a of the engaging projection relatively moves to the right in this figure (position C). Here, when the pressing of the operating body 10 is released, as shown in FIG. 14C, the coil spring 46 pushes back the operating body 10 by its urging force. At that time, the engagement protrusion 43 abuts the inclined surface 56 of the engaged protrusion 53 (position D), slides on the inclined surface 56, and slightly rotates the spindle 51 to cause a space between the engaged protrusions 53, 53. Through to the position E where the coil spring 46 is substantially opened.
At this time, the operating body 10 is located at the operating position, and the operating body 10 can be rotated. Figure 7
It shows in (b).

14C to 14E show the positional relationship between the end surface 43a of the engaging projection and the engaged projection 53 of the spindle 51 when the operating body 10 moves from the operating state to the stored state. Shows. When the operating body 10 is pressed from the operating state in which the operating body 10 protrudes in FIG. 14C, the end surface 43a of the engagement protrusion slides downward (position F) as shown in FIG. 14D. . Further, when the operating body 10 is pressed, the drive teeth 45 come into contact with the drive inclined surface 52, the spindle 51 rotates, and the end surface 43a of the engaging projection moves to the right in the figure (position G). Here, when the pressing of the operating body 10 is released, the operating body 10 is pushed back upward by the urging force of the coil spring 46, and the engaging projection 43 abuts on the inclined guide surface 55 of the engaged projection 53. (Position H), slide on it, and reach the position I (Position A) while rotating the spindle 51 slightly. In this state, the operating body 1
0 is located in the storage position. The state is shown in FIG.

Since the spindle 51 and the engagement protrusion 43 of the operating body 10 operate in this way, the operating body 10 projects from the storage section S by a simple operation of pushing in the front end of the operating body 10. and operating position, can be switched and storage position located within the housing portion S.

The door closing tool 1 of the present embodiment is provided with the operating body 10.
The front cover 11 forming the front end portion of is substantially cylindrical, and the operating body 10 rotates about the center line of the spindle 51 provided at the center of the storage section S.
Thereby, as shown in FIG. 2, the rotating operation of the operating body 10 can be performed within the front surface area of the storage section S of the door closing tool 1. Therefore, the rotating operation of the operating body 10 can be performed in the front surface area of the storage section S and a small area around the front surface area. As a result, other devices can be arranged in the door 2 in the vicinity of the operating body 10 and the door 2 can be made smaller, thereby reducing the size of the box body 6 itself. Can contribute.

In the door closing tool 1 of the present embodiment, the front cover 11 forming the front end of the operating body 10 has a cylindrical shape, so that the door closing tool 1 is attached to the opposite side of the door 2. In such a case, even if the door closing tool 1 is mounted upside down, the front cover 11 has a cylindrical shape, so that it can be used without any problem.
It can accommodate both doors 2 that are open to the left. Further, since the lid 91 is also formed in a circular shape when viewed from the front, the lid 91 can be used without any discomfort even if it is turned upside down.

The chain plate 61 of this embodiment slides in the linear direction, but it goes without saying that, for example, the chain plate 61 may have one end attached to the shaft and project or retract while rotating. .

[0054]

As described above, the present invention is as described above.
According to the invention described above, since the front end portion of the operating body is formed in a columnar shape, the case and the operating body can be turned upside down to be attached to either the right side or the left side of the door. This makes it possible to handle both right-opening doors and left-opening doors.

Moreover, according to the invention of claim 1 ,
It is easy to operate by simply pushing in the front end of the operating body.
Operation position where the structure protrudes from the storage part and the position inside the storage part
You can switch the storage position to
By locking by rotation, it is possible to prevent unnecessary operation of that secure the operating body.

According to the second aspect of the present invention, it is possible to reliably lock and unlock the locking portion.

According to the third aspect of the invention, the locked position and the unlocked position of the key can be easily determined.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a door closing tool according to an embodiment of the present invention.

FIG. 2 is a plan view showing the door closing tool, where (a) is a case where the locking plate is in a protruding position and (b) is a case where the locking plate is in a retracted position.

FIG. 3 is a horizontal sectional view showing a state in which the door is closed by the door closing tool.

FIG. 4 is a perspective view showing a state in which the door closing tool is attached to the door.

FIG. 5 is a horizontal cross-sectional view showing a state in which the door is closed by the door closing tool.

FIG. 6 is a perspective view in which a part of the door closing tool is omitted.

7A and 7B are vertical cross-sectional views showing the door closing tool, where FIG. 7A is a case where the operating body is in a storage position and FIG. 7B is a case where the operating body is in an operating position.

FIG. 8 is a longitudinal sectional view showing an operating body of the door closing tool, and FIG. 8 (b) is a bottom view.

9A and 9B show movements of a cam provided in a locking part of the door closing tool. FIG. 9A shows a case where the locking part is in a locking position, and FIG. 9B shows a case where the locking part is in an unlocking position.

FIG. 10 is a plan view showing a rotating state of a lock hole of the door closing tool.

FIG. 11 is a front view showing an example of a key used to lock the door closing device.

FIG. 12 is a plan view, (b) is a vertical cross-sectional view, and (c) is a partially cutaway front view showing a case body of the door closing tool.

FIG. 13 is a front view with a part cut away, showing a lid of the door closing tool, and FIG. 13 (b) is a bottom view.

FIG. 14 is a development view showing the positional relationship between the engaged projection of the spindle and the end surface of the engagement projection of the operating body in each process of rotating the spindle.

FIG. 15 is a perspective view showing a conventional door closing device.

[Explanation of symbols]

1 Door closure 2 doors 10 operation body 11 Front cover 12 identification holes 14 insertion holes 15 Small diameter part 16 Large diameter part 21 Locking part 23 Identification display 61 Lock plate 70 cases S storage

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-52-52800 (JP, A) JP-A-9-96133 (JP, A) JP-A-57-61165 (JP, A) Actual development Sho-50- 126697 (JP, U) Actually opened 54-70796 (JP, U) Actually opened 1-131767 (JP, U) Actually opened 54-49398 (JP, U) Actually opened 2-72766 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) E05C 1/16 E05B 5/00 E05B 41/00 E05B 65/06

Claims (3)

(57) [Claims] 1. A case which forms a storage section communicating from the front side to the back side and is attached in a state of penetrating a door, and a central axis which is disposed in the storage section of the case and which communicates with the storage section. rotatable front end is closed and cylindrical operating body protrudes with the rotation operation of the operation member, backward to close the door, and a movable locking plate to open as, The operating body has an operating position in which the front end of the operating body is projected, and substantially the entire operating position.
The storage position where the body is stored in the case and the front of the operation body
It can be switched by pushing in the side edges.
On the front surface of the operating body , there is formed a rotatable locking portion having a key locking hole that prevents the operating body from rotating when the locking plate is in the protruding position. door <br/> closure it characterized. 2. The operating body, wherein the operating body is disposed in a storage portion and drives a locking plate, the locking portion has a locking hole disposed on a front surface side of the operating body, and A front cover which has an insertion hole through which a key is inserted corresponding to the locking hole of the locking portion and which holds the locking portion rotatably between itself and the operating body, wherein the insertion hole is A large diameter part that allows the tip of the key to pass through the insertion hole when in the locked and unlocked positions, and the tip of the key that passes through the insertion hole when the locking part is in a position other than the locked and unlocked positions The door closing tool according to claim 1 , wherein the door closing tool is formed in a shape having a small diameter portion that makes it impossible. 3. The identification hole is formed in the front cover, and the locking portion is provided with an identification display for distinguishing when the locking portion faces the identification hole from the locked position and the unlocked position. The door closing tool according to claim 2 , wherein the door closing tool is provided.