JPH0710324U - Guard arm device - Google Patents

Abstract

(57) [Summary] [Purpose] The guard arm mounted on the door frame can be projected after the door is almost completely closed so that the engagement protrusion of the guard arm is a long hole in the front plate on the door side. To fit in normally. [Structure] In the first frame box 1 on the door 10 side, an interlocking plate 41 and a interlocking plate 4 which are operated by thumb-turns to move back and forth in the lateral direction
1. A support frame 45 displaceably provided at the tip end of 1, and a trigger 48 pivotally attached to the support frame 45 with a vertical axis 47,
On the other hand, in the second frame box 2 on the door frame 10 side, there is an engaging protrusion 71 that is selectively fitted into the long hole 13 of the front plate 11,
A guard arm 7 having a base end that can be retracted and attached so as to be swingable, and a swing lever 81 that operates the guard arm 7.
A passive piece 84 that engages with the trigger 48 to drive the swing lever 81, and a spring 88 that biases the passive piece 84 or the swing lever 81 so that the guard arm 7 is always located at the storage position. Prepared

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a guard arm device capable of limiting an opening angle of a door as needed.

[0002]

[Prior art]

 The guard arm mounted on the door frame so that it can be retracted and swingably mounted can be moved to the operating position by operating the door side thumbnail and pushing the trigger body protruding from the end face of the door frame by the door when closing the door. A guard arm device of the type adapted to project is known from, for example, Japanese Patent Application Laid-Open No. 2-1863064.

However, in this type of guard arm device, when the door is closed to actuate the guard arm, the door is completely closed at the initial stage of fitting the door into the door frame. Before, the trigger body is pushed in by the edge of the front plate of the door, and the guard arm is pushed in the protruding direction.

Therefore, the engagement protrusion of the guard arm slides on the surface of the front plate, and the guard arm is displaced by a slight angle in the swinging direction. When the door is completely closed, the engagement protrusion of the guard arm is There is a problem that the guard arm does not work properly because it does not fit into the receiving hole of the long hole provided in the front plate or is caught on the edge of the receiving hole.

[0005]

[Problems to be solved by the device]

 In the guard arm device of the present invention, the guard arm attached to the other one of the door frame and the double door can be projected after the door is almost completely closed, and the engaging protrusion of the guard arm is located on the door side. It was proposed for the purpose of properly fitting in the long hole of the front plate.

[0006]

[Means for Solving the Problems]

 The guard arm device of the first invention in this application has a guard frame actuating cam pivotally supported by a side plate and operated by a thumb turn in a first frame box fixed to a door, and engaging with the cam. The interlocking plate is provided so as to be displaceable in the lateral direction, the support frame is provided so as to be displaceable in the lateral direction at the tip of the interlocking plate, and is biased forward, and the longitudinal axis is pivotally attached to the tip side of the support frame. The front plate of the first frame has a chevron-shaped trigger provided so as to project from the front plate as the interlocking plate moves forward or backward. Of the guard arm attached to the door side of the vehicle has a long hole that is fitted and guided when the guard arm is actuated. On the other hand, at the tip of the second frame box fixed to the door frame or another door. It has an engaging protrusion and the base end can be retracted and swingable. An attached guard arm, a swing lever facing the guard arm so that the guard arm can be selectively projected, and a laterally displaceable engagement with the swing lever. When the door is closed, the passive piece whose tip is exposed through the opening from the surface plate of the second frame and the guard arm should always be in the storage position so that they can contact the trigger selectively projected by the forward movement of the interlocking plate. And a spring for biasing the passive piece or the swing lever.

According to a second aspect of the invention, a guard arm actuating cam pivotally supported by a side plate and operated by a thumb turn is engaged in the first frame box fixed to the door, and the cam is engaged with the cam. The interlocking plate is provided so as to be displaceable in the lateral direction, and the first magnet that is provided at the tip of the interlocking plate and approaches or separates from the front plate as the interlocking plate moves forward or backward. The front plate of the box is provided with a long hole into which the engaging projection of the guard arm attached to the door frame side or other door side is fitted and guided when the guard arm is actuated, and fixed to the other door frame or other door. In the second frame box, a guard arm having an engaging projection at the tip and having a base end capable of projecting and retracting and swingably attached, and a swinging mechanism for engaging and retracting the guard arm by engaging the guard arm. The movable lever and the swing lever are engaged and can be displaced laterally. Functioning passive piece, a second magnet that is attached to the tip of the passive piece, approaches the first magnet facing the forward movement of the interlocking plate when the door is closed, and exhibits a repulsive or attractive action, and always keeps the guard arm in the storage position. It is characterized in that it is provided with a urging member for biasing the passive piece or the rocking lever so as to position it.

[0008]

[Action]

 As shown in FIGS. 1 to 9, in the first invention, FIG. 1 shows the inactive state of the guard arm device, and the guard arm is housed in the door frame or another door of the double door. In order to operate the guard arm, after the door is closed, the thumb turn is rotated by a predetermined angle of, for example, 45 degrees (see FIG. 6).

Since the guard arm actuating cam that rotates with the thumb turn advances the interlocking plate, at the same time, the trigger is projected from the front plate of the first frame via the support frame attached to the interlocking plate.

The protruding trigger abuts on the passive piece exposed from the surface plate on the second frame side, pushes the passive piece against the urging force of the spring, and swings the swing lever.

When the swing lever is operated, the guard arm in the storage position projects to the working position, and the engaging projection fits into the long hole of the front plate in the first frame (see FIG. 6).

If the door is opened here, the opening angle of the door is limited to a half-open state according to the length of the guard arm.

The operation of the trigger in the operating state of the guard arm will be described. 8 (A) to 8 (E) show how the trigger operates when the door is opened. In FIG. 8 (A), the door is in the closed state and the trigger pushes in the passive piece, and the guard arm is held in the projecting state in the operating position.

When the door is slightly opened, the tip of the trigger comes into contact with the edge of the opening of the face plate with the passive piece being pushed in the opening of the face plate of the second frame. Swing the entire trigger in a horizontal plane with respect to the support frame <Refer to (B) and (C) of FIG. 8>.

As the opening of the door progresses, the trigger has a wedge action at its tip and a retreat action against the biasing force of the support frame pivotally supporting the trigger, and the trigger causes the front face of the second box to move. Once riding on the face plate <see (D) of FIG. 8>, when the opening angle of the door is further increased, the trigger climbs over the face plate and is held in the protruding state after being separated from the second frame box <FIG. (E)>.

When the door opened in the half-opened state is closed by the regulation of the guard arm, the trigger operates in the reverse manner as shown in (P) to (S) of FIG. , Return to the initial state.

In short, in order to operate the guard arm, even if the tip of the trigger is projected into the opening of the face plate in the second casing when the door is closed, the trigger automatically opens the face plate when opening and closing the door. Since it is designed so that it can be overcome, it does not hinder the opening / closing operation of the door.

When the tip of the protruding trigger is on the surface plate of the second box in the operating state of the guard arm, the guard arm is in a state of swinging at a small angle. The engagement protrusion engages with the edge of the elongated hole in the front plate of the first frame, and the guard arm does not return to the inoperative position.

Next, the operation of the guard arm device in the second device shown in FIGS. 10 to 13 will be described. The operation for actuating the guard arm in the non-acting position (see FIG. 10) is the same as in the first device.

Since the guard arm actuating cam that rotates together with the thumb turn advances the interlocking plate, the first magnet provided at the tip of the interlocking plate approaches the opposing second magnet, and the cam with the first magnet moves. By the repulsion action or the attraction action between them, the passive piece to which the second magnet is attached is moved against the biasing force of the spring (see FIG. 13).

By this displacement of the passive piece, the swing lever engaged with the passive piece swings, and accordingly, the guard arm in the storage position is pressed and protrudes to the operating position as the swing lever swings. The engaging projection of is fitted into the long hole of the front plate in the first frame. If the door is opened here, the opening angle of the door is limited to a half-open state according to the length of the guard arm.

In the first and second inventions, in order to release the working state of the guard arm, it is sufficient to operate the thumb turn in the reverse state with the door closed, and each member of the guard arm device returns to the original position. .

[0023]

【Example】

 The guard arm device of the present invention will be described below with reference to two embodiments shown in the drawings. The first embodiment is shown in FIGS. 1-9, and the second embodiment is shown in FIGS.

The guard arm device of the present invention can be mounted upside down (upside down), but in the description of both embodiments, in order to make the reading comprehensible, a vertical direction (vertical direction) is provided. The terms "upper end", "lower end", "upper", "lower", etc. are used as indicated in the drawings. Therefore, these terms can be read as “one end”, “other end”, “one side”, “other side”, and the like.

1 to 4, reference numeral 10 is a door, 1 is a first frame box that also serves as a lock box fixed to the door, 11 is a front plate of the first frame box 1, and 12 is a first frame box 1. A side plate, 13 is a long hole composed of a receiving hole 13a provided in the front plate 11 and a guide hole 13b continuous therewith, 14 is an opening provided in the front plate 11 for penetrating the trigger 48, and 15 is a dead bolt 61. The through holes provided in the front plate 11 are shown for the sake of illustration.

On the other hand, reference numeral 20 is a door frame or another door of a double door, 2 is a second frame box fixed to the door frame or the other door 20, 21 is a surface plate of the second frame box, and 22 is a second frame box. A side plate of the frame box, 23 is an inlet / outlet provided in the front plate 21 for projecting the guard arm 7, 24 is an opening provided in the front plate 21 to expose the passive piece 84 to the outside, and 25 is a dead bolt 61. Engagement holes provided in the surface plate 21 for the purpose of making them respectively shown.

On the side plate 12 in the first frame box 1 fixed to the door 10, the cam 31 for operating the guard arm and the cam 32 for the protective frame for operating the protective frame 55 described later are associated with the dharma assembly 3. And a dead cam 33 is pivotally supported. These cams 31 to 33 are rotated by a thumb-turn on the indoor side or a key inserted into a cylinder lock on the outdoor side.

The guard arm actuating cam 31 is formed in the rear portion of the interlocking plate 41 which is provided so as to be displaceable in the lateral direction with respect to the side plate 12 in the first frame box 1 via the guide means 42. The notch-shaped first driven portion 41 is engaged, and the interlocking plate 41 is moved forward or backward.

The protection frame cam 32 is provided on a vertical interlocking frame 51 which is displaceable in the vertical direction (vertical direction) with respect to the side plate 12 in the first frame box via the guide means 52, and is provided at the lower portion thereof. The formed second driven portion 53 is engaged and the vertical interlocking frame 51 is moved up and down.

Reference numeral 54 is a compression spring for urging the vertical interlocking frame 51 downward, and 55 is a rectangular tubular protective frame fixed to the lower end of the vertical interlocking frame 51.

When the guard arm actuating cam 31 is rotated from its original position (FIG. 1) by, for example, 22.5 degrees by operating the thumb turn, the interlocking plate 41 moves forward as shown in FIG. Through the various mechanisms, the guard arm 7 on the door frame 20 side projects prior to the rise of the protective frame 55, and the engaging projection 71 thereof fits into the elongated hole 13 of the front plate 11.

When the thumb turn is further operated to rotate the protection frame cam 32 that rotates together with the cam 31 up to a predetermined angle of, for example, 45 degrees, as shown in FIG. 6, the protection frame cam 32 moves. The second driven portion 53 of the vertical interlocking frame 51 is pushed up, and the engagement protrusion 71 of the guard arm 7 is held by the protective frame 55 at the lower end of the vertical interlocking frame 51. At this time, the notch 56 formed in the front plate of the protective frame 55 is fitted into the shaft portion of the engaging projection 71 of the guard arm 7 from below.

In the protection frame 55, when the guard arm is actuated, the engaging projection 71 is illegally pulled out from the gap between the door 10 and the door frame or another door 20 in the receiving hole 13a portion of the front plate 11. It serves to prevent being issued. However, the protective frame 55 allows the engaging projection 71 of the guard arm 7 to be displaced toward the guide hole 13b as the guard arm 7 swings.

Further, the dead cam 33 has a notch-like shape formed in a rear portion of a dead bolt 61 provided so as to be laterally displaceable with respect to the inner plate 12 of the first frame box 1 via a guide means 62. The third driven portion 63 is engaged, and the dead bolt 61 is selectively engaged with the engagement hole 25 of the surface plate 21 of the second frame 2 through the through hole 15 of the front plate 11.

Reference numeral 64 is a restoring means for urging the dead bolt 61 toward the rear, and is composed of a V-shaped swinging piece and a torsion spring.

When the dead cam 33 operated by the thumb turn or the key is rotated from the original position (FIG. 1) by a predetermined angle of, for example, 90 degrees, the dead bolt 61 moves forward and protrudes from the front plate 11, as shown in FIG. The tip portion is fitted into the engagement hole 25 on the second frame box 2 side.

It is well known that locking the door 10 in the closed state by engaging the dead bolt 61 is not different from the conventional locking device. It is directly related to the guard arm device of the present invention. Absent.

The guide means 42, 52, 62 in the illustrated example are of a type in which a pin and an elongated hole are combined, but it goes without saying that other known guide means may be adopted. .

Next, an essential part of this invention relating to the above-mentioned interlocking plate 41 will be described. Two supporting pieces are fixed to the tip of an interlocking plate 41 made of a long plate material with a space therebetween, and a guide rod 44 is fixed to these supporting pieces in the lateral direction (horizontal direction). .

A support frame 45 is slidably inserted in the guide rod 44 in the lateral direction. The support frame 45 is fitted around the guide rod 44, and both ends of the support frame 45 and the interlocking plate 41 are inserted. A compression spring 46 abutting against one of the support pieces urges it forward.

Further, on the tip side of the support frame 45, there is provided a trigger 48 in which the plane shape of the tip portion pivotally attached by the vertical axis 47 has a chevron shape. The trigger 48 can be inserted through the opening 14 of the front plate 11 as the interlocking plate 41 moves forward or backward. When the trigger 48 is projected when the door is closed, the trigger 48 does not move to the door frame or another door 20 side. A passive piece 84, which will be described later, provided can be pushed in.

In the figure, reference numeral 49 is elastic such as a leaf spring for holding the swing position of the trigger 48 in the support frame 45 at a predetermined position, and is brought into contact with the rear portion of the trigger 48.

On the other hand, in the second frame box 2 fixed to the door frame or the other door 20 other than the double door, there is an engaging projection 71 at the front end so that the base end can be retracted and swung. It has a guard arm 7 attached.

The horizontal shaft 72 fixed to the base end of the guard arm 7 is rotatably supported by the receiving piece 73 fixed to the second frame 2 so as to be displaceable in the axial direction.

Reference numeral 74 is a compression spring fitted into the horizontal shaft 72, and is for biasing the base end of the guard arm 7 inward.

A fixed frame 75 is provided near the rear end of the horizontal shaft 72, and an L-shaped sliding piece 76 and a compression spring 77 are mounted in the frame 75.

The compression spring 77 urges the rear end of the horizontal shaft 72 through the sliding piece 76 in a direction of pushing it up, and a slight tilting is allowed when the guard arm 7 is projected. It serves to return the shaft 72 to the original position (horizontal position) when the guard arm 7 is stored.

At the rear portion of the guard arm 7, a swing lever 81 pivotally supported by a horizontal shaft 82 is provided on the side plate 22 of the second frame box 2 so as to be positioned substantially parallel to the guard arm 7. The rocking lever 81 is made of a pair of plate materials, and the upper end of the rocking lever 81 is brought into contact with the guard arm 7 from the rear so as to selectively project the guard arm 7. Reference numeral 83 is a trochanter provided on the upper end of the swing lever 83.

The lower end of the swing lever 81 is engaged with a passive piece 84 which is provided so as to be displaceable in the lateral direction. The engaging means 85 between the swing lever 81 and the passive piece 84 is configured by combining a pin and a long hole.

Further, the lateral guidance of the passive piece 84 is performed by movably fitting the lateral hole 87 provided in the passive piece 84 to the pin 86 fixed laterally to the bottom plate of the second frame box 2. Be broken.

The leading end of the passive piece 84 is passed through the opening 24 from the surface plate 21 of the second frame 2 so that it can be brought into contact with the trigger 48 that selectively protrudes when the interlocking plate 41 moves forward when the door is closed. It is exposed to the outside. A compression spring 88 for biasing the passive piece 84 forward is provided between the rear end of the passive piece 84 and the bottom plate of the second frame 2.

The compression spring 88 is for urging the upper end of the swing lever 81 so as to pull it rearward via the passive piece 84. In other words, the guard arm 7 is always located at the storage position. This is for urging the passive piece 84 or the swing lever 81. Therefore, the compression spring 88 can be replaced by providing the swing lever 81 with, for example, a torsion spring.

In the figure, reference numeral 30 is a known click spring device attached to the dharma assembly 3, and the guard arm actuating cam 31, the protective frame cam 32, or the dead cam 33 is in its original position in the non-operating state, The position where the guard arm is activated or the position where the dead cam is engaged is stably maintained, and the respective positions can be notified by touching the fingers through thumb turns or keys.

Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, only parts different from the first embodiment will be described. In the second embodiment, the members designated by the same reference numerals as those in the first embodiment are equivalent to those in the first embodiment, and the description thereof will be omitted.

In this embodiment, a first magnet 91 is fixed to the tip of the interlocking plate 41 in place of the support frame 45, the compression spring 46, the trigger 48 and the like.

Further, the second magnet 92 paired with the first magnet 91 is fixed to the tip of the passive piece 84.

When the first magnet 91 approaches the door frame or the second magnet 92 on the side of the door 20 as the interlocking plate 41 moves forward when the door is closed, the first magnet 91 becomes the second magnet 92 as shown in FIG. On the other hand, a magnetic action is exerted, the passive piece 84 is retracted, and the guard arm 7 is projected to the operating position via the swing lever 81.

In the illustrated first magnet 91 and second magnet 92, the poles of the opposing portions have the same magnetic pole, and the guard arm 7 is projected by the repulsive action.

When the poles of the opposing portions of the first magnet 91 and the second magnet 92 are different magnetic poles and the guard arm 7 is projected by the attracting action, the passive piece 84 holding the second magnet 92 is It is necessary to engage with the rocking lever 81 on the upper end side (the end side that contacts the guard arm 7) with respect to the horizontal shaft 82 of the rocking lever 81. At that time, the passive piece 84 is biased in the opposite direction.

The openings 14 and 24 provided in the front plate 11 and the surface plate 21 in the first embodiment may or may not be provided in the second embodiment. In addition, in the second embodiment, the members near the magnets 91 and 92 are preferably made of a non-magnetic material.

[0061]

[Effect of device]

 According to the guard arm device of the present invention described above, when the door is normally opened and closed, the engagement protrusion of the guard arm does not slide on the front plate on the door side, and the engagement protrusion is received. Since it does not move with respect to the long hole of the plate, when the guard arm is projected to the operating position, the engaging projection can be properly fitted into the long hole of the front plate and can be fitted securely.

[Brief description of drawings]

FIG. 1 is a partial vertical sectional side view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional plan view thereof.

FIG. 3 is a front view of a front plate of the first frame box.

FIG. 4 is a front view of a surface plate of the box.

FIG. 5 is a partial vertical sectional side view showing an intermediate process of the guard arm projecting operation of the first embodiment.

FIG. 6 is a partial vertical sectional side view showing a working state of a guard arm.

FIG. 7 is a partial vertical sectional side view showing a locked state by dead bolts.

FIG. 8 is a cross-sectional plan view showing a change in the operating state of the trigger during the door opening process when the guard arm is operating.

FIG. 9 is a cross-sectional plan view showing a change in a trigger operation state in a door closing process when a guard arm is operated.

FIG. 10 is a partially longitudinal side view of the second embodiment of the present invention.

FIG. 11 is a front view of the front plate of the first frame box.

FIG. 12 is a front view of a surface plate of the second frame box.

FIG. 13 is a partial vertical sectional side view of the guard arm operating state.

[Explanation of symbols]

 10 Door 20 Door Frame or Other Door 1 First Frame Box 11 Front Plate 12 Side Plate 13 Long Hole 2 Second Frame Box 21 Surface Plate 24 Opening 31 Guard Arm Actuating Cam 41 Interlocking Plate 45 Support Frame 47 Vertical Axis 48 Trigger 7 Guard arm 71 Engagement protrusion 81 Swing lever 88 Spring 91 First magnet 92 Second magnet

Claims (2)

[Scope of utility model registration request] 1. A guard arm actuating cam pivotally supported by a side plate and operated by a thumb turn, and a cam displaceably laterally engaged with the cam in a first frame box fixed to a door. The interlocking plate and the supporting frame that is provided at the distal end of the interlocking plate so as to be displaceable in the lateral direction, and is biased forward, and is pivotally attached to the distal end side of the supporting frame with the vertical axis, and the interlocking plate moves forward or backward A trigger arm having a chevron-shaped top end portion provided so as to project from the front plate, and further, a guard arm attached to the front plate of the first frame box on the door side or another door side. The engaging protrusion in has a long hole that is fitted and guided when the guard arm is actuated, and on the other hand, in the second frame box fixed to the door frame or another door, the engaging protrusion is provided at the tip, With a guard arm that allows the base end to be retracted and attached so that it can swing
A swing lever facing the guard arm so that the guard arm can be selectively projected, and a swing lever engaged with the swing lever and laterally displaceable. A passive piece whose tip is exposed through the opening from the surface plate of the second frame box so that it can come into contact with the selectively projected trigger, and a passive piece or a rocking lever so that the guard arm is always located at the storage position. A guard arm device comprising a biasing spring. 2. A guard arm actuating cam pivotally supported by a side plate and operated by a thumb turn, and a cam displaceably laterally engaged with the cam in a first frame box fixed to a door. An interlocking plate, and a first magnet that is provided at the tip of the interlocking plate and that moves toward or away from the front plate as the interlocking plate moves forward or backward. Further, the front plate of the first frame box has a door frame. Side or other door side is provided with an elongated hole into which an engaging protrusion in a guard arm is fitted and guided when the guard arm is actuated, while on the other hand, in a second frame box fixed to a door frame or another door A guard arm having an engaging protrusion at the tip and having a base end that can be retracted and attached so as to be swingable; a swing lever that retracts and retracts the guard arm by engagement with the guard arm; A passive piece that is engaged with and is displaceable in the lateral direction; A second magnet that is attached to the tip of one piece and that approaches the first magnet that is opposed by the forward movement of the interlocking plate when the door is closed, and that has a repulsive or attracting action, and a passive piece or rocker that always positions the guard arm in the storage position. A guard arm device comprising a spring for urging a lever.