JP2016094704A - Door opening/closing device and board frame using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening/closing device capable of arbitrarily maintaining an opening position of a hinged door by a simple configuration.SOLUTION: A door opening/closing device includes: a locking operation part 31 which is provided in a hinged door 20 for opening/closing an opening 11a of a casing 11 and which makes a locking operation performed in a closing position; an extension member 23 which is attached to the hinged door 20 and extended into the casing 11; and an opening position maintaining part 25 which is provided on the side of the casing 11 and which maintains an opening position of the hinged door 20 by restraining the extension member 23 during the locking operation of the locking operation part 31 in the opening position of the hinged door.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a door opening / closing device capable of arbitrarily holding an open position of a hinged door disposed on a panel, a building, or the like that houses electrical equipment, and a panel frame using the same.

As this type of door opening and closing device, for example, a door stopper described in Patent Document 1 is known.
The stopper for the door is a stopper member that protrudes from the lower end of the door via a rod member to an operation disk formed integrally with a lever handle for opening and closing the door, presses the floor surface, and holds the door at a predetermined opening. Is fixed. Therefore, when the lever handle is set to the lock position, the stopper member presses the floor surface and the open position of the door is maintained.

However, this door stopper needs to face the floor when the door is opened like a building door. If the distance to the floor is long when the door is opened, the floor When it is inclined, it cannot be applied when the floor is not smooth, such as gravel.
For this reason, for example, like a door fixing device described in Patent Document 2, an arm member guided to be slidable and rotatable on a door frame is connected to a movable plate slidably provided on the upper surface of the door, A brake member having an engaging part that engages and disengages from the engaging part of the moving plate is raised by an operating lever interlocking with the thumb turn of the door or the door gripper and engaged with the moving plate, thereby arbitrarily opening the door. The position is fixed.

JP-A-8-260799 JP-A-5-239967

In the door fixing device described in Patent Document 2, it is necessary to dispose a moving plate, a braking member, and an operating rod in the door, and there is an unsolved problem that the door fixing structure becomes complicated.
Therefore, the present invention has been made paying attention to the unsolved problems of the above-described conventional example, and uses a door opening and closing device capable of holding a hinged door in an open position with a simple configuration and the same. The purpose is to provide a board frame.

In order to achieve the above object, a door opening and closing device according to one aspect of the present invention is provided in a hinged door that opens and closes an opening of a housing, and a lock operation unit that locks the hinged door at an arbitrary open position. And an extension member that is attached to the hinged door and moves in the housing as the door opens and closes, and the extension member is restrained during the locking operation at the open position of the hinged door provided on the housing side. And an open position holding portion that holds the open position of the hinged door.
The board frame according to one embodiment of the present invention includes a housing having an opening, a hinged door that opens and closes the opening of the housing, and a door opening and closing device having at least the above-described configuration.

  According to one aspect of the present invention, the open position holding portion provided on the housing side can arbitrarily hold the open position of the hinged door according to the lock operation of the lock operation portion. The board frame thus made can have a simple configuration.

It is a perspective view showing a board frame provided with a door opening and closing device which is one mode of the present invention. It is an enlarged plan view which shows the open position holding | maintenance part of FIG. It is a perspective view which shows a door attaching part. It is a side view which shows an example of the open position holding | maintenance part of FIG. It is a front view which shows the other example of the door opening / closing apparatus which is 1 aspect of this invention.

  Next, an embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

Further, the embodiment described below exemplifies an apparatus and a method for embodying the technical idea of the present invention, and the technical idea of the present invention is the material, shape, structure, The layout is not specified as follows. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.
As shown in FIG. 1, a board frame 10 having a door opening and closing device according to an embodiment of the present invention includes a housing 11 that houses, for example, an electric device and a power control device, and an opening 11 a of the housing 11. And a door opening and closing device 40 for opening and closing the hinged door 20.

The hinged door 20 is formed with a bent portion 20b which is bent at a right angle on the back surface side at the outer peripheral edge of the flat plate portion 20a, and a frame bearing portion of the door mounting portion 12 at a joint portion between the bent portion 20b and the flat plate portion 20a. A pair of door bearing portions 21 sandwiching 15 from above and below is formed.
The door opening / closing device 40 has a door mounting portion 12 formed on the right side of the opening portion 11a of the housing 11, and the door 20 is attached to the door mounting portion 12 so as to be opened and closed as shown in FIG. ing. That is, as shown in FIG. 1, the casing 11 is formed with a frame-shaped plate portion 11b that is bent inwardly at the side edge portion of the opening 11a, and a door mounting portion is formed on the right surface of the frame-shaped plate portion 11b. 12 is formed.

  As shown in FIGS. 2 and 3, the door mounting portion 12 has a pair of mounting brackets 14 fixed to the frame-shaped plate portion 11 b at a predetermined distance in the vertical direction. These mounting brackets 14 are formed in a U-shape with the right end opened as viewed from above. Each mounting bracket 14 is formed with a frame bearing portion 15 extending in the vertical direction at the tip of a plate portion 14 a opposite to the frame-shaped plate portion 13.

Then, in a state where the door bearing portion 21 of the hinged door 20 is aligned so as to sandwich the frame bearing portion 15 of the door mounting portion 12 from above and below, the door mounting portion is inserted through the pivot 22 from above, for example. 12, the hinged door 20 is supported so as to be openable and closable around the pivot 22 as a rotation center.
Further, the door opening and closing device 40 is a slide stay 23 as an extension member that extends into the housing 11 rotatably attached to a support bracket 20 c formed on the inner surface of the door bearing portion 21 of the hinged door 20. Have The slide stay 23 is formed with a long hole 23a extending in the longitudinal direction at the center.

  Further, the door opening / closing device 40 has an open position holding portion 25, and the open position holding portion 25 restrains the slide stay 23 during a locking operation of a door handle 31 described later. The open position holding unit 25 includes a holding unit 26 that also serves as a guide for a slide stay serving as a restraining operation member. As shown in an enlarged view in FIG. 4, the holding portion 26 includes a pair of arm members 28 a and 28 b that are fixed to the frame-like plate portion 11 b and supported by a support shaft 27 that protrudes forward.

The arm members 28a and 28b have an outer arm member 28a fixedly supported on the support shaft 27, and an inner arm member 28b supported rotatably on the support shaft 27.
A guide pin 29 inserted into the long hole 23a of the slide stay 23 is formed at an end portion extending inward from the frame-shaped plate portion 11b of the outer arm member 28a, and braking is performed so as to surround the guide pin 29. A pad 30a is formed. Further, the inner arm member 28 b is formed with an insertion hole or an insertion groove through which the guide pin 29 is inserted, and a braking pad 30 b is formed so as to surround the guide pin 29.

  Accordingly, the end portions of the arm members 28a and 28b extending inward from the frame-like plate portion 11b are opposed so as to sandwich the slide stay 23 from the vertical direction. And the maximum open position of the hinged door 20 is controlled in the state in which the edge part on the opposite side to the support bracket 20c of the long hole 23a of the slide stay 23 contact | abuts to the guide pin 29. FIG. In this embodiment, the angle of the maximum open position is set to 90 degrees, for example. However, the angle is not limited to this, and the angle of the maximum open position can be arbitrarily set.

  Further, the door opening / closing device 40 includes a door handle 31 as a lock operation unit disposed at the center position in the vertical direction outside on the side opposite to the door mounting portion 12 side of the hinged door 20. The door handle 31 can be rotated between a lock position in a vertical state and a lock release position rotated counterclockwise when viewed from the front. And although the door handle 31 is not shown in figure, the latching piece is arrange | positioned inside the hinged door 20 and the latching piece is latched by the receiving member arrange | positioned at the board frame 10 in the closed position of the hinged door 20. Thus, the locking piece is detached from the receiving member at the unlocked position where the door handle 31 is rotated counterclockwise from the locked position, and the hinged door 20 can be opened and closed.

The door handle 31 has one end of a brake wire 32 which is a linear member as a connecting member constituting the open position holding portion 25 on the back surface side of the hinged door 20 so that the door handle 31 is moved from the unlocked position to the locked position. It is wound so that it is wound up when it is rotated.
The other end of the brake wire 32 is a ring-shaped guide member 33 disposed immediately above the door handle 31 on the back surface side of the hinged door 20, and the center line of the pivot 22 on the door mounting portion 12 side of the guide member 33. The ring-shaped guide member 34 is inserted into the ring-shaped guide member 35, and the ring-shaped guide member 35 is inserted into the frame-shaped plate portion 11 b, so that the brake pad 30 b of the arm member 28 b sandwiches the support shaft 27. It is fixed to the opposite end.

It should be noted that the arm member 28a and the brake pad 30a and 28b of the arm member 28b are braked to rotate the arm member 28b clockwise with respect to the arm member 28a between the opposite ends of the support shaft 27 with respect to the support shaft 27. A release spring 36 is inserted.
Accordingly, the locking operation for moving the door handle 31 from the unlocked position to the locked position is transmitted to the clamping unit 26 of the open position holding unit 25 via the brake wire 32. At this time, in a state where the door handle 31 is in the locked position, the arm member 28b of the open position holding portion 25 is rotated counterclockwise as viewed in FIG. 4, and the slide stay 23 is clamped in cooperation with the arm member 28a. By doing so, the movement of the slide stay 23 is restricted and the open position of the hinged door 20 at that time is held. By rotating the door handle 31 from this state to the unlocking position, the arm member 28b is rotated clockwise as viewed in FIG. 4 to release the holding of the slide stay 23 in cooperation with the arm member 28a.

Next, the operation of the above embodiment will be described.
Now, it is assumed that the hinged door 20 is closed so as to cover the opening 11a in the casing 11 of the panel frame 10 as shown by the broken line in FIG. 2, and the door handle 31 is in the locked position. In this state, a locking piece (not shown) of the door handle 31 is locked and fixed to a receiving member (not shown) formed on the panel frame 10.

  At the same time, since the door handle 31 is in the locked position, the brake wire 32 is wound around the door handle 31 and the brake pad 30a of the arm member 28b of the clamping part 26 constituting the open position holding part 25 is supported by the support shaft 27. As shown in FIG. 4, the end on the opposite side is pulled upward by the brake wire 32, and the slide stay 23 is clamped in cooperation with the arm member 28 a. For this reason, the brake pads 30a and 30b of the arm members 28a and 28b are pressed against the upper and lower surfaces of the slide stay 23 to restrain the movement of the slide stay 23.

  In order to open the hinged door 20 from this state, the door handle 31 is rotated from the locked position shown by the broken line in FIG. 1 to the unlocked position shown by the one-dot chain line. The brake wire 32 is rewound by the rotation of the door handle 31, and the arm member 28b is rotated in the clockwise direction as viewed in FIG. For this reason, the holding of the slide stay 23 by the brake pads 30a and 30b of the arm members 28a and 28b is released, and the slide stay 23 can move in the axial direction.

In this state, as shown in FIG. 1, the hinged door 20 can be opened by gripping the door handle 31 while maintaining the unlocked position and pulling it forward.
Thereafter, when it is desired to maintain the open position while the hinged door 20 is opened to a desired open position, the door handle 31 is returned from the unlocked position to the locked position.
As a result, the brake wire 32 is again wound up by the door handle 31, whereby the arm member 28b of the open position holding portion 25 rotates counterclockwise as viewed in FIG. The slide stay 23 is clamped by the brake pad 30b and the brake pad 30a of the arm member 28a, and the movement of the slide stay 23 in the axial direction is restrained.

For this reason, the hinged door 20 is reliably held at the open position at that time. Therefore, in this state, when the electric device or the power control device in the panel frame 10 is inspected or replaced, it is possible to reliably prevent the hinged door 20 from being inadvertently closed.
Thereafter, when the hinged door 20 is opened and closed, the holding force of the arm member 28b by the brake wire 32 is released by rotating the door handle 31 from the locked position to the unlocked position again. As a result, the arm member 28b is rotated clockwise by the elastic force of the brake release spring 36, and the holding state of the slide stay 23 by the brake pads 30a and 30b of the arm members 28a and 28b is released. Thereby, the hinged door 20 can be turned to a desired open position or closed position.

  Thus, when holding the open position of the hinged door 20, the brake wire 32 is guided through the guide member 34 arranged at the center axis position of the door bearing portion 21 of the hinged door 20, Even when the opening position of the hinged door 20 is changed, the length of the brake wire 32 between the door handle 31 and the arm member 28 b does not change, and the slide stays of the arm members 28 a and 28 b due to the looseness of the brake wire 32. Therefore, it is possible to reliably hold the hinged door 20 at any open position.

Further, since the open position holding portion 25 also serves as a guide for the slide stay 23 on the casing 11 side of the panel frame 10, it is necessary to separately form a guide member for the slide stay 23 on the casing 11 side of the panel frame 10. In addition, the configuration of the door opening and closing device can be simplified.
Moreover, the configuration for holding the open position of the hinged door 20 can be simplified because it is only necessary to provide the open position holding portion 25 having the brake wire 32, and the assembly can be easily performed.

Furthermore, even when the size of the hinged door 20 is different, it can be dealt with only by changing the length of the brake wire, and can accommodate a wide variety of hinged doors. For this reason, it is not necessary to change the design according to the size of the hinged door, and the manufacturing cost can be further reduced by mass production.
Further, when the open position of the hinged door 20 is held, it is only necessary to set the door handle 31 to the lock position, and a separate member for holding the open position is not required, so a stopper for holding the open position. It is possible to improve safety without forgetting to forget or forgetting to release. In addition, it is possible to easily confirm whether or not the open position is held only by visually recognizing the position of the door handle 31 from the outside.

Furthermore, since it is not necessary to consider the open position of the hinged door 20 and floor conditions, the hinged door can be reliably held in the case of the hinged door.
In addition, in the said embodiment, although the case where an electric equipment and an electric power control apparatus were accommodated in the board frame 10 was demonstrated, it is not limited to this, The hinged door type door of the housing | casing comprised with a building, The door opening / closing device 40 according to one embodiment of the present invention can also be applied to a door or the like of a general storage rack.

Further, not only when one hinged door 20 is provided for the panel frame 10, but also when a plurality of hinged doors 20 are arranged with respect to the panel frame 10, as shown in FIG. By providing the open position holding portion 25 corresponding to 20, it can be held at any open position.
Furthermore, the arm members 28a and 28b constituting the clamping unit 26 are not limited to the case where the arm member 28b can be rotated, and the arm member 28a can be rotated, and the arm member 28a can be replaced with a fixed arm member. The support plate portion that supports the slide stay 23 can be used. In short, it is sufficient that the slide stay 23 can be pressed and restrained. When the arm member 28a is rotatable, a ring-shaped guide member is provided below the arm member 28a and the brake wire 32 is connected from below.

  Further, the extension member attached to the hinged door 20 is not limited to the case where the slide stay 23 is applied, but instead of the slide stay 23, an arc shape or a fan-like arc shape centering on the rotation center of the hinged door 20 is used. An extension member may be provided on the hinged door 20 and the movement of the stay may be restricted by the movement restricting member. In short, the extension member can be restricted by the movement restricting member at any open position of the hinged door 20. May be provided.

Furthermore, as a lock operation part, not only the door handle 31 but a door knob can be applied. Moreover, not only when rotating a lock operation part, the lock operation part can be slid in the front-back direction, and the brake wire 32 can be pulled by pull-up to hold the open position.
Moreover, the structure of the door attachment part 12 is not limited to the said embodiment, Other rotation support members, such as a hinge, are applicable. In this case, since the length of the brake wire 32 between the door handle 31 and the open position holding portion 25 changes depending on the open position of the hinged door 20, the brake wire 32 and the arm member 28 b of the open position holding portion 25 are not connected. It is preferable to divide the connecting portion or the brake wire 32 in the middle and insert an elastic elastic member such as a coil spring for adjusting the length.

  Moreover, although the case where the brake wire 32 was applied as a connection member was demonstrated in the said embodiment, it is not limited to this, Cylindrical flexibility like a brake wire cable and a shift wire cable of a bicycle is provided. A wire cable having an inner cable inserted therein may be applied to the outer cable, and one end of the inner cable may be wound around the door handle 31 and the other end connected to the open position holding unit 25. In this case, since the outer cable serves as a guide member for the inner cable, the outer cable can be arbitrarily bent, and the degree of freedom in routing the cable can be improved. Further, the guide member does not need to be formed in a ring shape, and may be any shape as long as the outer cable can be supported at a desired position, and the outer cable is supported at least at one place inside the hinged door 20. Just do it. At this time, when the length of the inner cable changes depending on the opening position of the hinged door 20, an elastic expansion / contraction member such as a length adjusting spring is connected to the connecting portion between the inner cable and the arm member 28 b of the opening position holding portion 25. It is preferable to interpose.

  DESCRIPTION OF SYMBOLS 10 ... Board frame, 11 ... Housing | casing, 11a ... Opening part, 11b ... Frame-shaped board part, 12 ... Door attachment part, 20 ... Sliding door type door, 23 ... Slide stay, 25 ... Open position holding part, 26 ... Clamping part 28a, 28b ... arm member, 29 ... guide pin, 30a, 30b ... brake pad, 31 ... door handle, 32 ... brake wire, 33-35 ... guide member, 36 ... brake release spring, 40 ... door opening and closing device

Claims (11)

A lock operation unit that is provided in a hinged door that opens and closes an opening of the housing, and that locks the hinged door at an open position;
An extension member that is attached to the hinged door and moves in the housing in accordance with an opening and closing operation;
An open position holding portion that is provided on the housing side and holds the opening position of the hinged door by restraining the extension member at least when the locking operation portion is locked at the open position of the hinged door. A door opening and closing device characterized by that.   The open position holding portion is connected to one end of the lock operation portion to transmit the lock operation of the lock operation portion, and the other end of the connection member is connected to transmit the lock operation of the lock operation portion. The door opening and closing device according to claim 1, further comprising a restraining operation member that restrains the extension member when the door is pushed.   The door opening and closing device according to claim 2, wherein the restraining operation member is configured to be in pressure contact with the extension member when the locking operation of the lock operation unit is transmitted by the connecting member.   The door opening and closing device according to claim 2 or 3, wherein the connecting member is formed of a linear body.   The door opening / closing apparatus according to claim 4, wherein the linear body is guided to the housing side through a rotation center of the hinged door. The extension member is composed of a slide stay that regulates the maximum opening position of the hinged door,
The restraining operation member is provided in the housing, and includes a holding portion that guides the slide stay and holds the slide stay when the locking operation of the lock operation portion is transmitted by the connecting member. The door opening and closing device according to any one of claims 2 to 5, wherein the door opening and closing device is provided.   The sandwiching portion includes a pair of arm members that are connected to each other and sandwich the slide stay, and one of the pair of arm members is fixed, and the other of the pair of arm members is the connection member. The door opening and closing device according to claim 6, wherein the door opening and closing device is connected.   The door opening and closing device according to any one of claims 1 to 7, wherein the lock operation unit is configured by a door handle.   The door opening and closing device according to any one of claims 1 to 8, wherein the casing is configured by a panel frame that houses at least one of an electric device and a power control device.   The door opening / closing apparatus according to any one of claims 1 to 8, wherein the casing is a building. A housing having an opening;
A hinged door that opens and closes the opening of the housing;
A board frame comprising the door opening and closing device according to any one of claims 1 to 10.

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