JP2005314974A - Door opening/closing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door opening/closing apparatus which enables a handling person to safely inspect and repair a device in handling the device equipped with a door. <P>SOLUTION: The door opening/closing apparatus 10 has a stopper retaining tool 15 provided either at the opening side of an enclosure 12 or at the door side 13; a retaining tool 16 for varying a stopper position provided at the other side; and a retaining member 17 installed between the stopper retaining tool 15 and the retaining tool 16 for varying the stopper position and enabling bent parts 17a, 17b at both end sides to be respectively retained at the side of the stopper retaining tool 15 and at the side of the retaining tool 16 for varying the stopper position. The door 13 is held open at the opening angle of the door by retaining the bent part 17b of the retaining member 17 in any one of desired stopper retaining holes 21a-21c. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device that can be freely opened and closed in a device housing such as a communication device, and more particularly to a door opening / closing device that can be handled safely when an operator of the device opens and closes the door.

  Conventionally, when installing or repairing equipment equipped with this kind of door opening and closing device, the work is normally performed with the door open.

  When working on equipment with the door open, if the door is subjected to external force against the intention of the operator or operator, or if the operator inadvertently applies external force, the door will rotate. There was a problem in safety, such as hitting the handler or being injured by being sandwiched between the equipment casing side. For this reason, when the work is performed with the door open, a door opening / closing device is employed in which the door is mechanically held in the open state so that the door is not inadvertently closed.

  As such a door opening and closing device, there is one disclosed in Japanese Utility Model Laid-Open No. 5-75891 (see Patent Document 1).

  As this type of door opening and closing device, as shown in FIG. 6, a door opening and closing device 1 having a configuration in which the door opening state is intentionally fixed is used.

  According to this door opening / closing device 1, a door 4 that can be opened and closed via a hinge 3 is provided at the front opening of the device housing 2, and the door 4 opens at a desired angle from the opening surface of the device housing 2. In this state, a door stopper device 5 is provided so that the door 4 does not open and close.

  The door stopper device 5 includes a leg portion 6a fixed to the opening lower edge portion 2a of the device casing 2, a leg portion 6b fixed to a predetermined position of the back side lower edge portion 4a of the door 4, and both the leg portions 6a. , 6b and a stopper 8 fixed by screws 7a, 7b, respectively.

  The door stopper device 5 is configured to geometrically select the positions of the opening lower edge portion 2a of the device housing 2 to which the both leg portions 6a and 6b are fixed and the back side lower edge portion 4a of the door 4 so that the door 4 The opening angle can be set to a desired angle.

Thus, according to the door opening and closing device 1, when the operator opens the door 4 at a desired opening angle, the door 4 is held so as not to move in accordance with the opening angle. Can do.
Japanese Utility Model Laid-Open No. 5-75891 (column “Structure” on page 1 and FIG. 2)

  According to the configuration of the door opening / closing device 1, the operator can safely work using the door stopper device 5 exclusively when handling the device, etc. The door stopper device 5 must be installed, and the door 4 is not held in a normal state when the work is not performed, and there is a problem in safety when the operator handles the equipment.

  The present invention has been made in view of the above circumstances, and a door opening / closing device in which the stopper function of the door always acts regardless of when the device is handled, and the operator can handle the device safely. The purpose is to provide.

  Another object of the present invention is to provide a door opening and closing device that allows a handler to handle equipment more safely by enabling a desired opening angle to be selected when the door is opened. Objective.

  In order to achieve the above object, according to the present invention, a stopper locking tool provided on one of the opening side and the door side of the device housing, a stopper position variable locking tool provided on the other side, And a stopper that is spanned between the stopper locking tool and the stopper position variable locking tool, and the bent portions at both ends are respectively locked to the stopper locking tool and the stopper position variable locking tool. The stopper position variable locking tool has a plurality of stopper locking holes that can hold the door through the stopper at a predetermined opening angle along the longitudinal direction of the stopper position variable locking tool. A door opening and closing device provided, wherein the door can be held in an opened state of the door opening angle by locking a bent portion of the stopper in a desired stopper locking hole. provide.

  In order to achieve the above object, according to the present invention, a stopper locking tool provided on one of the opening side and the door side of the device housing, a stopper position variable locking tool provided on the other side, And a stopper that is spanned between the stopper locking tool and the stopper position variable locking tool, and in which the bent portions on both ends are respectively locked to the stopper locking tool and the stopper position variable locking tool side. The stopper includes expansion / contraction means that can be extended in the longitudinal direction, and is attached so that an acting force in the extension direction works when locked to the stopper locking device and the stopper position variable locking device. A plurality of stopper locking holes that can hold the door via the stopper are provided in the position variable locking tool along the longitudinal direction of the stopper position variable locking tool, and the bent portion of the stopper The desired By engaging the stopper locking hole, the door, to provide a door opening and closing device being characterized in that as can be held in the open state of the door opening angle.

  According to the present invention, when the door of the device is opened, the operator can handle the device more safely by always operating the stopper function of the door.

  In addition, since the operator can handle the device at a desired opening angle, it is possible to provide a door opening and closing device that can more safely perform operations such as installation and repair of the device.

  An embodiment of a door opening and closing device according to the present invention will be described with reference to the accompanying drawings.

  1 to 5 show an embodiment of the present invention, and FIG. 1 shows an outline of a door opening and closing device 10.

  The door opening / closing device 10 incorporates a control device such as a relay and a timer, has a device housing 12 having an opening 11 on the front surface, and a door 13 provided to be openable and closable in front of the opening 11 of the device housing 12. When the door 13 is opened to a predetermined angle, the door stopper device 14 is configured to hold the door 13 in the opened state.

  The door stopper device 14 includes a stopper locking tool 15 fixed to the bottom of the opening of the device housing 12, a stopper position variable locking tool 16 fixed to the inner bottom of the door 13, and the stopper position variable member. It is comprised from the locking member 17 spanned between the stopper 16 and the stopper locking tool 15. FIG.

  The stopper locking member 15 is formed with a stopper locking hole 15 a that pivotally supports a bent portion 17 a provided on one end side of the locking member 17.

  The stopper position variable locking tool 16 is a long side having a U-shaped side cross section, and a fixing surface portion 19 fixed to the door 13 side with a fastening screw 18 as shown in FIG. A stopper guide portion 20 that slidably guides one end side of the locking member 17 and a stopper locking portion 21 that locks one end side of the locking member 17 are provided.

  The stopper guide portion 20 is provided with a stopper guide hole 20a elongated in the longitudinal direction in order to guide one end side of the locking member 17 slidably.

  The stopper locking portion 21 is provided with a plurality of locking holes, for example, three stopper locking holes 21a to 21c with a predetermined interval along the longitudinal direction thereof.

  The locking member 17 is, for example, a metal-made integrally formed rod-like member, and a bent portion 17b is formed on the other end side. The bent portion 17b is a stopper of the stopper position variable system stopper 16. The guide hole 20a is slidably supported via a slide collar 22.

  The slide collar 22 is slidably provided in the stopper guide hole 20a of the stopper position variable locking device 16 as a slider block. The stopper guide hole 20a corresponds to a desired opening / closing angle when the door 13 is opened / closed. It is formed in the required long hole.

  Specifically, as shown in FIGS. 2 and 3, the slide collar 22 includes a small-diameter middle shaft portion 22a and flange portions 22b and 22b on both sides in the axial direction. The flange portions 22b and 22b are formed in the longitudinal direction of the stopper guide hole 20a in a state where the slide collar 22 is attached to the stopper guide hole 20a of the stopper locking portion 21 in the stopper guide hole 20a of the stopper position variable locking device 16. It can slide freely.

  In addition, the bent portion 17b of the locking member 17 locked to the stopper locking portion 21 side of the stopper position variable locking tool 16 is the tip of the bent portion 17b when the door 13 is opened to a predetermined angle. The portion 17b1 is locked to the stopper locking portion 21 side of the stopper position variable locking tool 16.

  A stopper collar 23 is attached to the distal end portion of the bent portion 17 b of the locking member 17. Specifically, as shown in FIGS. 2 and 3, the stopper collar 23 includes a middle shaft portion 23a having a smaller diameter than the stopper locking hole 21a of the stopper position variable locking device 16, and a stopper guide portion of the middle shaft portion 23a. 20 is provided with a flange portion 23b on the side facing 20 and the flange portion 23b abuts against the flange portion 22b side on the slide collar 22 side and does not come out even when the bending portion 17b of the locking member 17 is lifted upward. It is like that.

  Further, the stopper collar 23 is made of, for example, nylon having lubricity and wear resistance, so that a good stopper action can be obtained.

  In this way, the stopper collar 23 is provided on the side where the flange portion 23b faces the stopper guide portion 20, and the bent portion 17b of the locking member 17 is lifted by the operator, so that the bent portion 17b side is provided. The stopper collar 23 is disengaged from the stopper locking hole 21a side on the stopper position variable locking tool 16 side, and the bent portion 17b of the locking member 17 can slide on the stopper locking portion 21 in the longitudinal direction.

  Further, when the door 13 reaches a predetermined opening angle, the stopper locking holes 21a to 21c of the stopper position variable locking tool 16 are bent into any one of the stopper locking holes 21a to 21c by the bent portion 17b of the locking member 17. Are naturally dropped and engaged so that the door 13 cannot be opened and closed.

  Specifically, as shown in FIG. 4, from the rotation center of the bent portion 17a of the locking member 17 locked to the stopper locking tool 15 side when the door opening angle is set to 90 °, for example. The effective length to the stopper locking hole 21c when the effective length to the stopper locking hole 21a is set to x1, for example, 80 °, and the effective length to the stopper locking hole 21b is set to x2, 70 °. This is x3.

  As shown in FIG. 2, when the door 13 is opened, for example, 90 °, the bent portion 17 b of the locking member 17 falls and fits into the stopper locking hole 21 a to open and close the door 13. Is held so that it cannot.

  As shown in FIG. 1, when the door 13 is opened, for example, by 80 °, the bent portion 17b of the locking member 17 is naturally dropped and the tip of the stopper locking hole 21b is stopped. The portion 17b1 is fitted and held so that the door 13 cannot be opened and closed.

  Similarly to the stopper locking hole 21b, the stopper locking hole 21c is fitted with the distal end portion 17b1 of the bent portion 17b of the locking member 17 being naturally dropped when the door 13 is opened by 70 °, for example. The door 13 is held so that it cannot be opened and closed.

  Therefore, by selecting x1 to x3 as the effective lengths of the stopper locking holes 21a to 21c and setting any one of them, a desired door opening angle can be obtained and the door can be prevented from moving at the same angle. Can be retained.

  Next, a procedure for setting the opening angle of the door stopper device 14 of the door opening and closing device 10 will be described with reference to FIGS.

  When the door opening angle is set to 90 °, as shown in FIG. 1, the bent portion 17a of the locking member 17 is pivotally supported by the stopper locking tool 15 on the device housing 12 side and locked. The bent portion 17b of the member 17 is slidably attached to the stopper guide hole 16b1 and the stopper locking hole 21a of the stopper position variable locking tool 16.

  In this way, when the door 13 is opened to 70 ° from the closed state, the distal end portion 17b1 of the bent portion 17b of the locking member 17 naturally falls into the stopper locking hole 21c shown in FIGS. And locked. When the front end portion 17b1 of the bent portion 17b is locked in the stopper locking hole 21c, the door 13 is held at a door opening angle of 70 °.

  Next, when an opening angle of 80 ° is desired for the door 13, the operator lifts the bent portion 17 b of the locking member 17 to release the locking state and further opens the door 13. Open the door angle to 80 °. Then, similarly to the case where the door opening angle is 70 °, the distal end portion 17b1 of the bent portion 17b of the locking member 17 is naturally dropped and locked into the stopper locking hole 21b, and the door 13 is opened at 80 °. It will be held at an angle.

  Further, when a door opening angle of 90 ° is desired, the operator lifts the bent portion 17b of the locking member 17 to release the locking state and further opens the door 13. Open the angle up to 90 °. Then, similarly to the case where the door opening angle is 80 °, the distal end portion 17b1 of the bent portion 17b of the locking member 17 is naturally dropped and locked into the stopper locking hole 21a, and the door 13 is opened by 90 °. It will be held at an angle.

  Thus, the opening angle desired by the operator can be set in advance, or can be selected and set by looking at the situation of the opening angle at the site.

  Accordingly, even when an external force in the closing direction is applied to the door 13 unexpectedly, for example, when the operator operates the door in an open state, the operator is in an open state, so that the operator can work. It is possible to provide a door opening / closing device 10 that can safely handle equipment without hitting the door 13 or being injured between the door 13 and the equipment housing 12.

  The door stopper device 14 of the door opening and closing device 10 according to the present invention has a configuration in which the stopper locking device 15 is provided on the device housing 12 side and the stopper position variable locking device 16 is provided on the door 13 side. These may be reversed, that is, the stopper locking device 15 may be provided on the door 13 side, and the stopper position variable locking device 16 may be provided on the device housing 12 side.

  Furthermore, although the stopper position variable locking tool 16 is provided with the stopper guide portion 20, it is not always necessary.

  That is, any one of the plurality of stopper locking holes 21a to 21c of the stopper locking portion 21 is selected in advance when the door is opened, and the bent portion 17b side of the locking member 17 is once lifted by, for example, a manual operation, It can be used as a door opening and closing device by dropping into any of the stopper locking holes 21a to 21c.

  Further, the locking member 17 used in the door opening and closing device 10 according to the present invention is a integrally formed rod-shaped member having metal rigidity, but has a necessary tensile and compressive strength as a stopper for the door 13. For example, it may be made of plastic and cylindrical.

  Furthermore, the locking member 17 used in the door opening and closing apparatus 10 according to the present invention may be a locking member 30 configured by combining two stopper members as shown in FIG.

  The locking member 30 is provided with expansion / contraction means that can be extended in the longitudinal direction, and is attached such that when it is locked to the stopper locking device 15 and the stopper position variable system locking device 16 side, an acting force in the expansion direction works. Is.

  Specifically, as shown in FIG. 5, the device housing side locking portion 31 that engages with the device housing 12 side shown in FIG. 1, the door side locking portion 32 (not shown), and both locking portions. The elastic spring 33 is interposed between 31 and 32.

  The device housing side locking portion 31 has a bent portion 31a and a middle shaft portion 31b having a slightly smaller diameter than the bent portion 31a.

  The door side latching portion 32 has a bent portion 32 a, a center shaft portion 31 b of the device housing side latching portion 31, and a bottomed cylindrical recessed portion 32 b that receives the elastic spring 33.

  One end of the elastic spring 33 is fixed to the bottom of the recessed portion 32 b of the door side locking portion 32, and the other end is fixed to the tip of the central shaft portion 31 b of the device housing side locking portion 31.

  The elastic spring 33 is interposed between the bottom of the recessed portion 32b formed on the door side locking portion 32 side and the tip of the central shaft portion 31b formed on the device housing side locking portion 31 side. Therefore, it is incorporated so that the acting force in the extending direction works.

  That is, the effective length x4 of the locking member 30 has an effective length x4 (x4> x1 to x3) longer than the effective lengths x1 to x3 shown in FIG.

  Therefore, when the locking member 30 is used for the door stopper device 14, the elastic spring 33 is extended so that the door 13 is always opened.

  In addition, when the locking member 30 is employed in the door opening / closing device 10, the door 13 is always opened, so that it is possible to more safely perform work and inspection such as repair of equipment by the operator.

The perspective view which shows the principal part of the door stopper apparatus which concerns on embodiment of the door opening / closing apparatus of this invention. The enlarged view seen from the A arrow direction of the door stopper apparatus of FIG. Sectional drawing which follows the BB line of FIG. The longitudinal cross-sectional view of a stopper position variable locking tool. The partial longitudinal cross-sectional view which shows the other Example of the locking member used for the door opening / closing apparatus of this invention. The perspective view which shows the principal part of the conventional door opening / closing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door opening / closing apparatus 11 Opening part 12 Equipment housing | casing 13 Door 14 Door stopper apparatus 15 Stopper locking tool 15a, 21a-21c Stopper locking hole 16 Stopper position variable locking tool 17, 30 Locking member 17a, 17b Bending part 17b1 Tip 18 Tightening screw 19 Fixing surface 20 Stopper guide 20a Stopper guide hole 21 Stopper lock 22 Slide collar 22a, 23a Center shaft 22b, 23b Flange 23 Stopper collar 31 Device housing side lock 31a, 32a Fold Curved portion 31b Middle shaft portion 32 Door side locking portion 32b Recessed portion 33 Elastic spring x1 to x4 Effective length

Claims (5)

A stopper locking tool provided on either the opening side or the door side of the device housing;
A stopper position variable locking tool provided on the other side;
A stopper that is spanned between the stopper locking tool and the stopper position variable locking tool, and the bent portions on both ends are respectively locked to the stopper locking tool and the stopper position variable locking tool side. Equipped,
The stopper position variable locking device is provided with a plurality of stopper locking holes along the longitudinal direction of the stopper position variable locking device that can hold the door through the stopper at a predetermined opening angle. And
A door opening and closing device characterized in that the door can be held in the open state of the door opening angle by locking the bent portion of the stopper in a desired stopper locking hole. A stopper locking tool provided on either the opening side or the door side of the device housing;
A stopper position variable locking tool provided on the other side;
A stopper that is spanned between the stopper locking tool and the stopper position variable locking tool, and the bent portions on both ends are respectively locked to the stopper locking tool and the stopper position variable locking tool side. Equipped,
The stopper is provided with expansion and contraction means that can be extended in the longitudinal direction, and is attached so that an action force in the extension direction works when locked on the stopper locking tool and the stopper position variable locking tool side.
A plurality of stopper locking holes that can hold the door via the stopper are provided in the stopper position variable locking tool along the longitudinal direction of the stopper position variable locking tool,
A door opening and closing device characterized in that the door can be held in an open state at the door opening angle by engaging a bent portion of the stopper with a desired stopper locking hole. The said stopper position variable locking tool is provided with the slide guide part which has a stopper guide hole which guides so that a bending part of a stopper can be slid in conjunction with opening operation | movement. Door opening and closing device. The stopper position variable locking tool includes a slide guide portion provided with a stopper guide hole for allowing the bent portion of the stopper to be slidably guided in conjunction with the opening operation, and a stopper mechanism for engaging the bent portion of the stopper. The door opening and closing device according to claim 1, further comprising a stopper locking portion having a stop hole. The stopper is interposed between the device casing side stopper portion that engages with the device casing side, the door side stopper portion that engages with the door side, and both the stopper portions, and exerts an extension force to the both stopper portions. The door opening and closing device according to claim 2, wherein the door opening and closing device is configured by an elastic spring provided as described above.

Images