JP2003041836A - Door stop for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door stop suitable for a door for an electrical-equipment housing facility capable of automatically holding a lock at the place of the door opened and capable of excellently preventing the fluctuation of a cost at a time when the door stop is applied in common with a plurality of kinds of the doors having different weight. SOLUTION: The door stop for the door is composed of a guide frame 5 fixed in an opening section, a restraint bar 6 connecting the guide frame 5 and the door 1 and a locking mechanism locking a sliding pin 7 fixed onto the restraint bar 6 in the case of a door opening. The locking mechanism is constituted of a case 15 fixed onto the guide frame 5, a catch body 16 housed in the case 15, a compression coil type spring 17 rocking and urging the catch body 16 or the like. The peripheral surface of the sliding pin 7 in the case of a totally opened state is pinched by the catch body 16 before and behind, and the door 1 is held under an open state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a derailment applied to a cubicle such as a switchboard or a distribution board, or a door of an electric equipment accommodation facility such as a communication relay facility.

[0002]

2. Description of the Related Art In a switchboard or the like used for accommodating electrical equipment, internal equipment is regularly inspected,
Alternatively, a defective device 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 rocked and opened and locked. Even accessories such as door locks and door hinges need only be robust and low cost. A door stopper device disclosed in Japanese Patent Application Laid-Open No. 3-8990 is known as the anti-raising device of the present invention. There, the guide frame fixed to the door frame side and the door are connected by stays. The guide frame has an elongated hole, and the stay can slide along the elongated hole when the door is opened and closed. With the door open 90 degrees from the closed position,
It is also disclosed that a pin that accompanies the stay is engaged and held by a stopper made of a leaf spring. The stopper is provided with a partially spherical recess that engages and captures the protruding end of the pin.

[0003]

Although such a conventional stopper device can restrict the door from being excessively opened beyond a predetermined opening angle, it cannot restrict the closing operation of the door. Therefore, the door may be closed by the wind and swing. Although the door can be held in the open position by adding a leaf spring stopper, the engagement between the stopper and the pin may be easily released when the door is exposed to gusts. Lack. When the pins are engaged and captured in a hugging manner by a pair of leaf springs arranged opposite to each other,
It is possible to prevent pin disengagement to some extent. However, the leaf spring has a disadvantage in that the spring force that can be generated tends to vary due to variations in the shape during molding, and the spring force decreases over time. If you want to apply common detents to doors with different weights, it is necessary to prepare dedicated leaf springs with different spring forces.To do this, you must use a die for processing different leaf springs of different sizes and shapes. It is necessary to prepare it at a high manufacturing cost.

For example, when a detent for a window with a lock mechanism prepared for a house or a high-rise building is used, it is possible to reliably prevent the door from suddenly closing and swinging due to a gust of wind. it can. However, since this kind of detent is complicated in structure and costly and the unlocking operation is often complicated on purpose to prevent tampering, the unlocking operation of the lock mechanism is troublesome.

An object of the present invention is to provide a suitable buckling stop for a door of an electric equipment accommodating facility, which is capable of elastically engaging and catching the door in the open position and keeping the door closed with a stable force at all times. is there. An object of the present invention is to apply a derailing stopper to a plurality of types of doors having different weights,
At that time, spring parts prepared according to the weight of the door can be procured at low cost, and therefore the variation in the cost of the derailing prepared according to the door weight can be reduced to a negligible level. The object is to provide a suitable anti-clamp for the door. The object of the present invention is to simplify the entire structure and reduce the cost of the derailment accordingly.
An object of the present invention is to provide a suitable anti-clamp for a door of an electric equipment housing facility that can cope with upside down and right and left inconsistencies.

[0006]

[Means for Solving the Problems] The restraint of the present invention is as follows.
Guide frame 5 fixed to the opening, guide frame 5 and door 1
And a slide pin 7 that slides together with the check rod 6 along a guide hole 9 provided in the guide frame 5, and a lock mechanism that locks and fixes the slide pin 7 at the door open position. There is. The lock mechanism is arranged between the case 15 mounted on the guide frame 5, the pair of front and rear catch bodies 16 pivotally supported by the case 15, and the pair of catch bodies 16, and the both catch bodies 16 are provided. And a compression coil type spring 17 for urging each other to swing in the pin capturing direction. Both catch bodies 16 can be reciprocally displaced between a catching position where the peripheral surface of the slide pin 7 is sandwiched in the front-back direction and a catch releasing position where the slide pin 7 is disengaged. Interlocking with the opening operation of the door 1, the slide pin 7 enters between the catch bodies 16 while resisting the urging force of the spring 17 so as to be engaged and captured.

The catch body 16 is composed of a press fitting integrally including a base frame portion 30 having a U-shaped cross section and an engaging arm 31 projecting laterally from the base frame portion 30. The engagement arm 31 is provided with an engagement recess 33 that holds the peripheral surface of the slide pin 7 in the front-rear direction, and an introduction guide portion 34 for the slide pin 7 that extends outward in a continuous manner from the engagement recess 33. Part of the pair of base frame portions 30 are brought into contact with each other so that the minimum facing distance between the pair of engaging arms 31 can be kept slightly smaller than the diameter dimension of the slide pin 7.

The case 15 includes a first case 19 having a U-shaped cross section formed by front and rear walls 21 and a base wall 22 fixed to the guide frame 5 with bolts 23, and a base wall 22 bridged by the front and rear walls 21. And the second case 20 including the lid wall 25 facing the. In both the first and second cases 19 and 20, the base wall 22 and the lid wall 25 are fastened and fixed by the bolts 27 and the nuts 28. The base wall 22 of the first case 19 is fastened and fixed to the guide frame 5 with the bolts 23 inserted into the guide holes 9. The operation head portion 27a of the bolt 27 is engaged with the guide hole 9 to prevent the case 15 from rotating in the guide hole 9 via the operation head portion 27a.

[0009]

According to the present invention, since the guide frame 5 is provided with the lock mechanism and the slide pin 7 is elastically engaged and captured by the lock mechanism at the door open position, the open door 1 is securely fixed. It can be held, the reliability and safety are improved compared to the conventional stopper device of this type, and the work such as carrying in maintenance parts and carrying out replacement equipment can be performed safely. When the anti-clamp is commonly applied to a plurality of types of doors having different weights, a spring 17 having a different spring force is prepared according to the weight of the door, but the pair of catch bodies 16 are pinned by a compression coil type spring 17. Since the swinging force is applied in the trapping direction, springs 17 having different specifications can be procured at a low cost, and therefore, the variation in the cost of the detents prepared according to the weight of the door can be reduced to a negligible level to reduce the manufacturing cost. Uniformity can be realized.

The lock mechanism includes a case 15 and a case 15
Although it is composed of the catch body 16 and the spring 17 which are assembled inside, the slide pin 7 can be captured with a stable and stable capturing force as compared with the case where the slide pin is directly captured by a leaf spring, and it can be used for residential or high-rise buildings. Compared to the anti-rare for windows with lock mechanism prepared for buildings, the anti-rare structure can be significantly simplified. Therefore, the manufacturing cost can be reduced, and an inexpensive buckling stop suitable for being applied to the door 1 of the electrical equipment housing facility can be obtained. When the door 1 is closed, the door 1 is closed against the biasing force of the spring 17,
Since the lock can be easily unlocked by simply removing the slide pin 7 from the engagement recess 33, the door 1 can be opened and closed by a simpler operation. By changing the mounting position of the lock body 15 with respect to the guide frame 5, the specifications of the anti-ravel can be changed between the right and left ones, and it is also possible to cope with upside down misalignment, so just prepare a kind of anti-rare Therefore, it is possible to deal with up / down / left / right inconsistencies and to provide a derailment at a lower cost. By changing the fixed position of the lock body 15 with respect to the guide frame 5, the fully open angle of the door 1 can be arbitrarily changed, so that the opening angle of the door 1 can be changed and adjusted in relation to the surrounding buildings, such as installation of a switchboard. Can flexibly respond to the situation at the site.

The catch body 16 is composed of a press fitting integrally provided with the base frame portion 30 and the engaging arm 31, and the engaging concave portion 33 for holding the slide pin 7 in the engaging arm 31 and the slide pin 7 are provided. According to the anti-sway provided with the introduction guide portion 34, since the slide pin 7 can be guided to move toward the engagement concave portion 33 side while being received by the introduction guide portion 34, the engagement operation of the slide pin 7 with the engagement concave portion 33 can be performed. Can be done smoothly without resistance. Further, when the pair of base frame portions 30 are brought into contact with each other and the minimum facing distance between the pair of engaging arms 31 is kept slightly smaller than the diameter dimension of the slide pin 7, the slide pin 7 is prevented from coming off. However, the engagement resistance of the engagement arm 31 can be reduced to smoothly engage and disengage the slide pin 7 with respect to the lock mechanism.

The case 15 is composed of the first and second cases 19 and 20, and the bolt 2 for fastening the cases 19 and 20 together.
The operation head 27a of No. 7 is engaged with the guide hole 9, and the case 1
According to the detent that stops 5 from rotating in the guide hole 9 via the hexagonal operation head 27a, the case 15 can be prevented from rotating by using the bolts 27 for both cases 19 and 20. Even if the case 15 is displaced during long-term use or the door 1 is suddenly opened, the case 15 can be prevented from shifting and the anti-clamp can always be used properly.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 6 show an embodiment of an anti-raising device according to the present invention. The anti-sway is applied to, for example, a switchboard as shown in FIG. 2, and the door 1 that opens and closes the front opening is automatically locked in the open position to keep the open state. The door 1 is supported by a pair of upper and lower pivot hinges 2 so as to be capable of swinging and opening and closing, and a detent is provided between the upper portion of the inner surface of the door 1 and the opening. Reference numeral 3 is a lock.

In FIGS. 3 to 5, the tilting stop is composed of a guide frame 5 fixed to the opening, a check rod 6 connecting the guide frame 5 and the door 1, and a lock mechanism. The restraining rod 6 is made of a strip-shaped press fitting, one end of which is connected to the guide frame 5 through a slide pin 7, and the other end of which is connected to the door 1 through a connecting pin 8. The connecting pin 8 is fixed to a seat plate provided on the inner surface of the door.

In FIG. 4, the guide frame 5 is composed of a frame body having an L-shaped cross section, and horizontal and laterally long guide holes 9 are provided in its horizontal wall to fix the vertical wall to the opening. The slide pin 7
A slide shaft part 1 consisting of a round shaft with a smaller diameter than the others underneath
The check rod 6 is connected to the guide frame 5 by inserting the lower end of the slide shaft portion 10 into the guide hole 9 from the upper surface side of the guide frame 5 and caulking and fixing it to the check rod 6. When the door 1 is opened, as shown by an imaginary line in FIG. 3, the check rod 6 accompanies the door 1 and is pulled out to the outside, so that the slide pin 7 moves the guide hole 9 from the left end to the right end in FIG. Slide to move.

The lock mechanism is disposed between the catch body 16 and a case 15 assembled to the lower surface of the right side of the guide frame 5, a pair of catch bodies 16 housed in the case 15 and pivotally supported so as to be capable of swinging back and forth. The spring 17 is a compression coil type spring 17 that urges both arms 16 to swing in the pin capturing direction.

In FIG. 4, the case 15 is formed in a box shape by assembling a first case 19 and a second case 20, which are press-molded products, into a lid-like shape. First case 19
Is formed in a U-shaped cross section by the front and rear walls 21 and the base wall 22, and the base wall 22 is fastened and fixed to the guide frame 5 by the bolts 23 and nuts 24 inserted from below the guide holes 9. The nut 24 is welded to the upper surface of the base wall 22.
The second case 20 has a lid wall 25 that bridges the upper ends of the front and rear walls 21 and faces the base wall 22, and a side wall 26 that is continuous with the lid wall 25 and that is fitted between the front and rear walls 21. First and second
Both cases 19 and 20 of the base wall 22 facing each other vertically
And the lid wall 25 are fastened and fixed by bolts 27 and nuts 28 which are inserted from the lower surface side, to be integrated. The operation head portion 27a of the bolt 27 is engaged with the guide hole 9 and is retained as a detent,
At the same time, the case 15 is prevented from rotating about the bolt 23. Since the lock mechanism is shipped in a pre-assembled state, the case 15 is positioned at a predetermined position during the construction, and then the bolt 23 and the nut 24 are placed.
All you have to do is screw it in.

The catch body 16 is a base frame portion 3 having a U-shaped cross section.
0 and a press-molded product integrally provided with an engaging arm 31 that continuously projects laterally from the base frame portion 30, and a spring receiving pin 32 is caulked and fixed to the inner surface of the base frame portion 30. (See Figure 1). The engaging arm 31 includes an engaging recess 33 that holds the peripheral surface of the slide pin 7 back and forth, and an engaging recess 3
3 is provided with an introduction guide portion 34 that continuously extends outward. The base frame parts 30 are assembled alternately,
With the spring 17 arranged between the receiving pins 32, the base frame portion 3
By supporting each other with the bolts (shafts) 27 through the collar 35, each catch body 16 can swing in the front-rear direction about the bolts 27 and, further, can be expanded against the biasing force of the spring 17. Can swing open. In the state where the slide pin 7 is separated from the lock mechanism, the front and rear free ends of the base frame portion 30 are received by the other vertical wall to prevent the introduction guide surfaces 34 from further approaching each other. This position is set as the capture position, and the position where the slide pin 7 is disengaged is set as the capture release position (state shown by the solid line in FIG. 6).

When the door 1 is opened from the closed state,
The slide pin 7 accompanies the restraining rod 6 and slides along the guide hole 9. When the door 1 is opened near the opening limit, the slide pin 7 contacts the introduction guide portion 34 of the engagement arm 31 as shown in FIG. 6, and the catch body 16 is expanded against the biasing force of the spring 17. Open operation. Further, by opening the door 1, the introduction guide portion 34 and the engaging recess 33
When the slide pin 7 passes through the boundary portion between and, the catch body 16 receives the urging force of the spring 17 and oscillates back to the capture position side, and as shown in FIG. The peripheral surface is pinched and captured, and the ride pin 7 is locked and held. At this time, the catch arm 16 is slightly expanded from the capture position. Therefore, even when the wind blows on the door 1, the door 1 can be kept open. In this embodiment, the opening angle of the door 1 in the fully opened state is 100 degrees from the closed position. When the door 1 is operated to be closed, the tip of the door 1 is grasped and rocked in the closing direction to forcibly disengage the slide pin 7 from the engagement recess 33 against the biasing force of the spring 17.

The anti-raising device of this embodiment corresponds to the right hand, but the specification is changed as the anti-left device by changing the mounting position of the lock mechanism to the guide frame 5 from the right end to the left end. It is possible to apply the same specification change without any trouble even when the anti-skid is arranged between the lower portion of the door 1 and the opening. In other words, you can deal with up / down / left / right mishandling simply by preparing a kind of detent.

The anti-rare can be used by disposing the lock mechanism on the upper surface side of the guide frame 5. The case 15 and the catch body 16 may be formed of a plastic molded product,
In that case, the case 15 can be formed in a box shape whose side surface and an attachment surface to the guide frame 5 are open. The shaft 27 that supports the catch body 16 can be replaced with a shaft that is caulked and fixed to the case 15 or a rivet, and need not be a bolt.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view of a lock mechanism.

FIG. 2 is a perspective view of a switchboard.

FIG. 3 is a plan view of a detent.

FIG. 4 is an exploded perspective view of a tilting stopper.

FIG. 5 is a side view of the anti-rare.

FIG. 6 is a cross-sectional view showing the operation of the lock mechanism.

[Explanation of symbols]

1 door 5 guide frames 6 check rod 7 slide pins 9 Guide hole 15 cases 16 Catch body 17 spring 19 First case 20 Second case 21 front and rear walls 22 base wall 23 Volts 24 nuts 25 lid wall 27 volts 30 Base frame 31 Engaging arm 33 Engagement recess 34 Introduction Guide

Claims (3)

[Claims] 1. A guide frame 5 fixed to an opening, a check rod 6 connecting the guide frame 5 and the door 1, and a check rod 6 slidably moved along a guide hole 9 provided in the guide frame 5. The slide pin 7 includes a slide pin 7 and a lock mechanism that locks and fixes the slide pin 7 in the door open position. The lock mechanism includes a case 15 mounted on the guide frame 5;
A pair of front and rear catch bodies 16 pivotally supported by the case 15 and a compression coil type, which is disposed between the pair of catch bodies 16 and biases both catch bodies 16 in the pin catching direction. Including the spring 17, both catch bodies 16 can be reciprocally displaced between a catching position where the peripheral surface of the slide pin 7 is sandwiched back and forth and a catch releasing position where the slide pin 7 can be disengaged, and are interlocked with the opening operation of the door 1. Then, the slide pin 7 has the spring 1
The anti-derailing of the door that enters between the catch bodies 16 and is engaged and captured while resisting the biasing force of 7. 2. The catch body 16 comprises a press fitting integrally provided with a base frame portion 30 having a U-shaped cross section and an engaging arm 31 projecting laterally from the base frame portion 30, and the engaging arm 31. An engaging recess 33 for sandwiching the peripheral surface of the slide pin 7 in the front-rear direction and an introduction guide part 34 for the slide pin 7 extending continuously outward from the engaging recess 33 are provided. The door tilting prevention device according to claim 1, wherein a part of the base frame portion (30) is brought into contact with each other to keep the minimum facing distance between the pair of engagement arms (31) slightly smaller than the diameter dimension of the slide pin (7). 3. The case 15 includes front and rear walls 21 and a guide frame 5.
A first case 19 having a U-shaped cross section formed by a base wall 22 fixed to a bolt 23, and a second case 20 including a lid wall 25 that is bridged by the front and rear walls 21 and faces the base wall 22.
In both the first and second cases 19 and 20, the base wall 22 and the lid wall 25 are fastened and fixed by the bolts 27 and the nuts 28, and the base wall 22 of the first case 19 is formed. Is fastened and fixed to the guide frame 5 with a bolt 23 inserted into the guide hole 9, and the operating head portion 27a of the bolt 27 is engaged with the guide hole 9 to
The door tilt prevention according to claim 1, wherein the case 15 is prevented from rotating by the guide hole 9 via the operation head portion 27a.