JP4739596B2 - Doors - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a cleat that is applied to a cubicle such as a switchboard or a distribution board, or a door of an electrical equipment housing facility such as a communication relay facility.
[0002]
[Prior art]
In switchboards used for the purpose of accommodating electrical equipment, internal equipment is regularly inspected or defective equipment is replaced, but the frequency is extremely low. For this reason, doors applied to this type of equipment are often made of a steel plate and have a very simple structure that can be simply opened and closed or locked. Also, accessories such as door locks and door hinges are required only to be sturdy and low cost. A door stopper device disclosed in Japanese Patent Application Laid-Open No. 3-8990 is well known with respect to the curling stop according to the present invention. There, the guide frame fixed to the door frame side and the door are connected by a stay. The guide frame has a long hole, and the stay can slide along the long hole when the door is opened and closed. It is also disclosed that the pin accompanying the stay is engaged and held by a stopper made of a leaf spring when the door is opened 90 degrees from the closed position.
[0003]
[Problems to be solved by the invention]
Such a conventional stopper device can restrict the door from opening excessively beyond a predetermined opening angle, but cannot restrict the door closing operation. For this reason, the door may be suddenly closed and swung due to wind. If a leaf spring stopper is added, the door can be held in the open position. However, when the door is subjected to a gust of wind, the engagement between the stopper and the pin may be released, resulting in lack of certainty and safety. For example, when the anti-window window with a locking mechanism prepared for a house or a high-rise building is used, the door can be prevented from suddenly closing and swinging due to a gust of wind. However, this type of anti-spinning structure is complicated and expensive, and the unlocking operation is often complicated in order to prevent tampering, so that the unlocking operation of the locking mechanism is troublesome.
[0004]
An object of the present invention is to provide an anti-slip device suitable for a door of an electrical equipment housing facility that can be automatically locked so that the door of the electrical equipment housing facility is closed and cannot be swung in an open position and can be unlocked by one touch when necessary. . SUMMARY OF THE INVENTION An object of the present invention is to provide a cleat suitable for a door of an electric equipment housing facility that can be provided at a low cost by simplifying the overall structure and can cope with any difference in right and left and right and left.
[0005]
[Means for Solving the Problems]
As shown in FIGS. 1 and 2, the curling stop of the present invention includes a guide frame 5 fixed to the opening, a check rod 6 that connects the guide frame 5 and the door 1, and a guide hole provided in the guide frame 5. 9 includes a slide pin 7 that slides along with the check rod 6 and a lock mechanism that locks and fixes the lock shaft portion 11 provided on the slide pin 7 at the door open position. As shown in FIGS. 1 and 4, the lock mechanism is mounted on the guide frame 5 to engage and capture the lock shaft portion 11, and the direction in which the lock shaft portion 11 is engaged with the lock hole 22 of the lock body 15. The first spring 12 that moves and urges the check rod 6 and the second spring 19 that moves and urges the lock body 15 toward the engagement position. The lock body 15 is attached to the guide frame 5 in a state that it can be displaced over an engagement position where the lock shaft portion 11 is engaged and captured and a floating position where the lock shaft portion 11 is allowed to pass through. Accordingly, in conjunction with the opening operation of the door 1, the lock shaft portion 11 can pass through the lock body 15 against the urging force of the second spring 19 and engage with the lock hole 22, and the check rod 6 can be engaged with the first spring. 12, the lock shaft portion 11 is detached from the lock hole 22 so that the lock can be released.
[0006]
A lock shaft portion 11 is provided at the protruding end of the slide shaft portion 10 of the slide pin 7. The first spring 12 is disposed between the guide frame 5 and the check rod 6 in a state of being externally fitted to the slide shaft portion 10. The lock body 15 is provided with a lock hole 22 that receives the lock shaft portion 11 and an introduction groove 23 that allows the slide shaft portion 10 to enter and exit. The lock body 15 is pivotally supported by a boss 16 fastened and fixed by a bolt 17 inserted through the guide hole 9 so that the lock body 15 can be displaced between an engagement position and a floating position. A cover 18 is fixed to the lower end of the boss 16. A second spring 19 can be disposed between the lock body 15 and the cover 18 .
[0009]
[Effects of the invention]
In the present invention, a lock mechanism is provided in the guide frame 5, the slide pin 7 is engaged and captured by the lock mechanism at the door open position, and the door 1 is closed and automatically locked so as not to swing. It can be securely fixed against a gust of wind, and it can improve the safety and safety compared to this type of conventional stopper device, and can safely carry in work such as carrying in maintenance parts and carrying out replacement equipment. The lock mechanism is composed of the lock body 15 and the two types of springs 12, 19 and the like. However, the lock mechanism has a structure that is more secure than a window stop with a lock mechanism prepared for a house or high-rise building. Since it can be remarkably simplified, its production cost can be reduced, and an inexpensive anti-resting suitable for application to the door 1 of the electrical equipment housing facility can be obtained. When the door 1 is closed, the door 1 can be opened and closed with a simpler operation, for example, by simply depressing the check rod 6 against the first spring 12, that is, it can be easily unlocked with one touch. By changing the mounting position of the lock body 15 with respect to the guide frame 5, the anti-spinning specification can be changed between right and left use, and it is possible to cope with the difference between the upper and lower sides. Therefore, it is possible to cope with the difference in the vertical and horizontal directions, and to provide the anti-friction parts at a lower cost. By changing the fixing position of the lock body 15 with respect to the guide frame 5, the full opening angle of the door 1 can be changed arbitrarily, so that the opening angle of the door 1 can be changed and adjusted in relation to surrounding buildings. It can respond flexibly to the situation in the field.
[0012]
【Example】
Example 1
1 to 6 show an embodiment of the anti-waisting according to the present invention. 2 is applied to, for example, a switchboard as shown in FIG. 2, and the door 1 for opening and closing the front opening is closed at the open position and automatically locked so as not to swing, and the open state is maintained. The door 1 is supported by a pair of upper and lower pivot hinges 2 so as to be able to swing open and close, and a door stopper is provided between the lower part of the inner surface and the opening. Reference numeral 3 denotes a lock.
[0013]
In FIG. 3, the curl stop includes a guide frame 5 fixed to the opening, a check rod 6 that connects the guide frame 5 and the door 1, and a lock mechanism. The check rod 6 is made of a press fitting having a U-shaped cross section that opens downward, one end of which is connected to the guide frame 5 via a slide pin 7, and the other end is connected to the door 1 via a connection pin 8. . The connecting pin 8 is fixed to a seat plate fixed to the inner surface of the door.
[0014]
In FIG. 4, the guide frame 5 is composed of a frame body having an L-shaped cross section, and left and right horizontally elongated guide holes 9 are provided in the horizontal wall to fix the vertical wall to the opening. The slide pin 7 includes a slide shaft portion 10 occupying most of the slide pin 7 and a lock shaft portion 11 having a larger diameter than the slide shaft portion 10 provided at the lower end thereof. By inserting the slide shaft portion 10 into the guide hole 9 from the lower surface side of the guide frame 5 and caulking the upper end of the slide shaft portion 10 to the check rod 6 with the washer and the compression coil-shaped first spring 12 fitted on the shaft portion. The check rod 6 is connected to the guide frame 5. In this connected state, the check rod 6 is pushed up and biased by the first spring 12, and the lock shaft portion 11 is in contact with the lower surface side of the guide hole 9 as shown in FIG. 5. When the door 1 is opened, the check rod 6 accompanies the door 1 and is pulled out to the outdoor side, so that the slide pin 7 slides from the left end to the right end in FIG.
[0015]
The lock mechanism includes a lock body 15 assembled to the lower right side of the guide frame 5, a boss 16 that pivotally supports the lock body 15 so as to tilt up and down, a bolt 17 that fastens the boss 16, and the lock body 15 to the guide frame 5. The second spring 19 is configured to be pressed and biased, and the cover 18 that covers the lower surface of the boss 16 and the second spring 19. The lock body 15 has a hole 21 for inserting a boss in a rectangular plate surface, and a lock hole 22 for receiving the lock shaft portion 11 on a plate surface adjacent to the hole 21 and an introduction groove for allowing the slide shaft portion 10 to go in and out. 23 and a press metal fitting formed by cutting out. A guide portion 24 that facilitates passing through the lock shaft portion 11 is obliquely bent at the side end of the arm portion that sandwiches the introduction groove 23 in the front-rear direction. Further, a claw 25 that engages with the guide hole 9 is formed on one side of the lock hole 22 by bending. The boss 16 is formed with a screw hole 16a, and a drum-shaped engagement portion 16b and a flange portion 16c that are held by the guide hole 9 are formed on the upper peripheral surface thereof. The cover 18 is formed in a square box shape that opens upward, and a cutout 20 that allows the lock body 15 to tilt up and down is provided on one side thereof.
[0016]
The lock mechanism is assembled as a unit part by assembling parts other than the bolt 17. Specifically, as shown in FIG. 1, the boss 16 is inserted into the hole 21 of the lock body 15 from above, and the second spring 19 is externally fitted to the shaft portion from below, and the cover 18 is attached to the lower end of the boss 16. The bottom wall is caulked and fixed into unit parts. According to the lock mechanism formed as a unit component in this way, when changing the mounting position with respect to the guide frame 5, the lock mechanism can be handled as one component, so that the work can be performed easily and quickly. Save time and effort. Further, the shaft portion of the boss 16 and the periphery of the second spring 19 can be covered with a cover 18 to exert a dustproof action, or the second spring 19 can be protected. As shown in FIG. 1, the lock mechanism formed as a unit part engages the engaging portion 16b of the boss 16 with the guide hole 9 from below, and screws the bolt 17 into the screw hole 16a through a washer. Fixed to. In this assembled state, the lock body 15 is pushed up and biased by the second spring 19, the engagement position where the plate surface comes into close contact with the lower surface of the guide frame 5, and the plate surface as shown in FIG. It can be displaced to a floating position tilting away from the guide frame 5. In order to allow this tilting, the diameter of the hole 21 is made considerably larger than the diameter of the boss 16.
[0017]
When the door 1 is opened from the closed state, the slide pin 7 follows the check rod 6 and slides along the guide hole 9. When the door 1 is opened to near the opening limit, the lock shaft portion 11 of the slide pin 7 hits the guide portion 24 at the side end of the lock body 15 as shown in FIG. Passing between the plate surface and the guide frame 5 while pushing down the lock body 15 against it. Further, by opening the door 1, the lock shaft portion 11 hits the claw 25 and is prevented from moving in the direction along the guide hole 9. In this state, since the lock hole 22 is located directly below the lock shaft portion 11, the lock body 15 returns to the engagement position under the urging force of the second spring 19. As a result, as shown in FIG. 1, the lock hole 22 is engaged with the lock shaft portion 11, and the slide pin 7 is locked and held so as not to slide. Therefore, even when a gust blows on the door 1, the door 1 can be kept open. In this embodiment, the opening angle of the door 1 when fully opened is 100 degrees from the closed position.
[0018]
When the door 1 is closed, while holding the door 1 by hand, as shown in FIG. 6 (b), the check rod 6 is stepped downward to lower the slide pin 7, and the lock shaft 11 is locked. Remove from the hole 22 downward. In this state, since the slide shaft portion 10 having a small diameter is located in the lock hole 22, when the door 1 is operated in the closing direction, the slide pin 7 moves out along the introduction groove 23 and comes out of the lock body 15. After that, the door 1 can be closed without any trouble even if the pressing force of the check rod 6 is kept open.
[0019]
The anti-turning of this embodiment corresponds to the right hand, but by changing the mounting position of the lock body 15 to the guide frame 5 from the right end to the left end, the specification can be changed as a left-handed anti-turning, By performing the same specification change, the present invention can be applied without any trouble even when an anti-turning is arranged between the upper portion of the door 1 and the opening. In other words, it is possible to cope with the difference between the top and bottom and the left and right by simply preparing a kind of anti-friction.
[0020]
( Reference example )
7 to 10 show a reference example of the anti-waisting according to the present invention. In that, the point which formed the check rod 6 in the shape of a strip, the point which provided the lock shaft part 11 in the fixed base end to the check rod 6 of the slide pin 7, and the capture structure of the slide pin 7 by a lock mechanism differ. The point and the point that the unlocking operation is performed by the lever 30 provided on the guide frame 5 are greatly different from those of the first embodiment. As shown in FIG. 8, the first spring 12 is disposed between the head portion 7 a at the lower end of the slide pin 7 and the lower surface of the guide frame 5, so that the lock shaft portion 11 is in close contact with the lock body 15. Energize the move.
[0021]
The lock mechanism includes a lock body 15 fixed to the upper surface of the guide frame 5, the first spring 12, and a bolt 31 and a nut 32 for fixing the lock body 15 to the guide frame 5 as shown in FIG. The lock body 15 is formed of a strip-shaped press fitting that is long on the left and right, and has a guide groove 33 having the same width as that of the guide hole 9 on the plate surface. A receiving lock hole 22 is provided. Adjacent to the lock hole 22, an insertion hole 34 for the bolt 31 and a detent pawl 35 that engages with the guide hole 9 are formed (see FIG. 9).
[0022]
The lever 30 is made of a press fitting having a U-shaped cross section, and as shown in FIG. Both ends of the shaft 36 are supported by brackets 37 provided on the vertical wall of the guide frame 5. The lever 30 tends to turn clockwise in FIG. 8 due to its own weight, but since the tip of the upper wall is received by the lower end of the slide pin 7, the upper wall is maintained in a substantially horizontal state in a normal state. The tip protrudes from the opening 38 provided on the wall of the opening to the door 1 side. Since the structure other than the above is the same as that of the first embodiment, the same reference numerals are given to the same members, and the description thereof is omitted.
[0023]
In the state in which the door 1 is closed, the slide pin 7 has the lock shaft portion 11 abutting against the upper surface of the lock body 15 as shown in FIG. When the door 1 is opened from this state, the slide pin 7 accompanies the check rod 6 and slides to the right along the guide hole 9 and the guide groove 33. When the door 1 is opened to the limit position, the lock shaft portion 11 is located immediately above the lock hole 22, so that the slide pin 7 biased downward by the first spring 12 moves downward, as shown in FIGS. As shown in FIG. 10A, the lock shaft portion 11 is fitted into the lock hole 22, and the slide pin 7 is locked and held so as not to slide. Therefore, even when a gust blows on the door 1, the door 1 is kept open.
[0024]
When the door 1 is operated to be closed, the lever 30 is stepped downward as shown in FIG. 10 (b) while the door 1 is supported by hand, and the slide pin 7 is pushed up against the first spring 12, The lock shaft portion 11 is detached upward from the lock hole 22. In this state, since the slide shaft portion 10 having a small diameter is located in the lock hole 22, when the door 1 is operated in the closing direction, the slide pin 7 can move along the guide groove 33, and the lock shaft portion 11 is moved in the guide groove 33. When the vehicle rides on the upper surface of the door, the pressing force of the lever 30 can be released, and thereafter the door 1 can be closed without any trouble.
[0025]
The anti-turning of the first embodiment can be used with the lock body 15 disposed on the upper surface side of the guide frame 5. The lock body 15 can be formed of a plastic molded product. The lock shaft portion 11 can be formed of a part different from the slide pin 7. For example, a thrust bearing can be attached to the slide pin to form the lock shaft portion 11.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view of a lock mechanism.
FIG. 2 is a perspective view of a switchboard.
FIG. 3 is a plan view of a curling stop.
FIG. 4 is an exploded perspective view of a curling stop.
FIG. 5 is a side view of a curling stop.
FIG. 6 is a cross-sectional view showing the operation of the locking mechanism.
FIG. 7 is a plan view of a curling stopper according to a reference example .
FIG. 8 is a side view of a curling stopper according to a reference example .
FIG. 9 is a cross-sectional view showing the operation of the lock mechanism according to the reference example .
FIG. 10 is a cross-sectional view showing the operation of the lock mechanism according to the reference example .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Door 5 Guide frame 6 Checking rod 7 Slide pin 9 Guide hole 10 Slide shaft part 11 Lock shaft part 12 1st spring 15 Lock body 16 Boss 17 Bolt 19 2nd spring 22 Lock hole 23 Introduction groove

Claims (2)

Along the guide frame (5) fixed to the opening, a check rod (6) connecting the guide frame (5) and the door (1), and a guide hole (9) provided in the guide frame (5) A slide pin (7) that slides together with the check rod (6), and a lock mechanism that locks and locks the lock shaft (11) provided on the slide pin (7) at the door open position,
The lock mechanism includes a lock body (15) that is attached to the guide frame (5) and engages and captures the lock shaft portion (11), and the lock shaft portion (11) is in the lock hole (22) of the lock body (15). The first spring (12) that moves and urges the check rod (6) in the engaging direction, and the second spring (19) that moves and urges the lock body (15) toward the engagement position,
The lock body (15) is mounted on the guide frame (5) in such a manner that it can be displaced between an engagement position for engaging and capturing the lock shaft portion (11) and a floating position allowing the lock shaft portion (11) to pass through. And
In conjunction with the opening operation of the door (1), the lock shaft (11) can pass through the lock body (15) against the biasing force of the second spring (19) and engage with the lock hole (22). The lock shaft (11) can be detached from the lock hole (22) and unlocked by operating the check rod (6) toward the lock body (15) against the first spring (12). Anti-scoring. A lock shaft portion (11) is provided at the protruding end of the slide shaft portion (10) of the slide pin (7),
The first spring (12) is disposed between the guide frame (5) and the check rod (6) in a state of being externally fitted to the slide shaft portion (10),
The lock body (15) is provided with a lock hole (22) that receives the lock shaft portion (11) and an introduction groove (23) that allows the slide shaft portion (10) to enter and exit,
The lock body (15) is pivotally supported by a boss (16) fastened and fixed by a bolt (17) inserted through the guide hole (9) and can be displaced between an engagement position and a floating position.
A cover (18) is fixed to the lower end of the boss (16),
The door stopper according to claim 1, wherein a second spring (19) is arranged between the lock body (15) and the cover (18) .

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