JP3774004B2 - Door guard - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door guard that restricts the degree of door opening so that visitors can be confirmed and mail can be delivered safely, and in particular, when a door guard is not used, it prevents a person passing nearby from colliding with it. For this purpose, the present invention relates to an improvement of a door guard in which a receiving rod is immersed in a storage portion of a first base.
[0002]
[Prior art]
As a conventional door guard of this type, it has a hollow first base body having a storage part fixed to the door frame or the indoor side of the door, and a bulging head mounted so as to protrude into the storage part of the first base body. A receiving base, a second base fixed to the indoor side of the door or door frame, an insertion portion and a receiving base pivotally attached to the second base so that the bulging head of the receiving base is inserted a consolidated rod that continuously provided slidably fitted are guide slots, is mounted in the housing portion of said first substrate, thereby urged in the direction to protrude the受杆from the housing portion of the first base protrusion A spring, a stopper means provided between the first base and the receiving base, and provided between the first base and the receiving base, and a stopper means for preventing the receiving base from being pulled out. Examples of the door guard include, for example, a utility model 6-82. 42 No. is shown in JP-A-6-238731 Publication and JP-A-8-100557 discloses such, is known.
[0003]
In the door guard described in the above-mentioned Japanese Patent Application Laid-Open No. 8-100557, when the connecting rod is swung by hand from the non-use position to the use position (operation position), the door guard is moved to the storage position (immersion position). An automatic lock state releasing device for the receiving rod that automatically releases the locked state of the receiving rod that is restrained by the locking means is provided.
[0004]
However, the automatic release device is composed of a combination of a slide-type release pin and a lock member comprising a stopper member (locking member) and a spring, and the stopper member, the spring and the release pin are all in the first base. There is a problem to be improved that the entire structure becomes extremely complicated.
[0005]
[Problems to be solved by the invention]
The door guard according to the present invention automatically releases the locking state of the receiving rod restrained by the locking means at the storage position when the connecting rod is manually swung from the non-use position to the use position. It has been proposed for the purpose of further simplifying the structure regardless of having a function of projecting to the operating position.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a hollow first base body having a storage portion fixed to the indoor side of the door frame, and a bulging head mounted so as to protrude into the storage portion of the first base body. and受杆with a second substrate to be fixed to the interior side of the door, swingably pivoted in a horizontal plane to the second substrate insertion portion and receiving the bulged head of受杆is inserted A connecting rod in which a guide long hole is fitted continuously so that the rod is slidably fitted to the housing portion of the first base, and the receiving rod is biased in a direction protruding from the housing portion of the first base. A protruding spring, a stopper means provided between the first base and the receiver, and provided between the first base and the receiver, and a stopper means for preventing the receiver from coming out, selectively receiving the receiver in the stored state. consists of a locking means for locking the connecting rod pivot it受杆direction by hand, like the bulging head of受杆was penetrates the insertion portion of the connecting rod In the Door Guard which is adapted to fit the受杆the guide slots by opening the door or sliding doors, a release lever pivotally attached to the central portion swingably provided outside the first substrate, one end of the release lever Is provided with an action part that comes into contact with the insertion part when the connecting rod is tilted to the receiving side, and the other end engages with the bulging head of the receiving member as the release lever swings to An engaging portion for releasing the locking state of the means is provided.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
The door guard of the present invention can be adopted as either a rotary door or a sliding door.
[0008]
1 to 4, reference numeral 10 denotes a door frame, 20 denotes a door guard mounting digging portion provided on the door frame 10, and 1 denotes a first base body fixed to the door frame 10 or the indoor side of the door.
[0009]
The first base 1 is formed by integrally fixing a front member 11 and a rear member 12 having mounting flanges 13, and the first base has a storage portion 14 and is formed in a hollow shape.
[0010]
In the illustrated example, the first base 1 is attached to the door frame 10 by fixing the first base 1 with screws 91 through the mounting flange 3 in the dug portion 20 of the door frame 10.
[0011]
And the base end side of the receiving rod 2 which has the bulging head 21 at the front-end | tip is attached to the accommodating part 14 in the said 1st base | substrate 1 so that protrusion is possible.
[0012]
As is well known, for example, a U-shaped connecting rod 3 is pivotally attached to a second base (not shown) fixed to the indoor side of the door or door frame.
[0013]
The connecting rod 3 has an insertion portion 31 through which the bulging head 21 of the receiving rod 2 is inserted at the base end portion, and is connected to the insertion portion 31 at the distal end side so that the receiving rod 2 is slidably fitted. It has a guide slot 32 to be engaged.
[0014]
As described above, the receiving hook 2 movably fitted in the storage portion 14 of the first base 1 is pushed from behind by a compression spring or other protruding spring 4 mounted on the back side of the storage portion 14 of the first base 1. , And is biased in a direction protruding from the storage portion 14.
[0015]
Reference numeral 41 denotes a guide rod of the compression spring 4 projecting from the inner bottom of the housing portion 14 of the first base 1, and 22 denotes a receiving hole of the compression spring 4 provided on the base end (inner end) side of the receiving rod 2.
[0016]
As shown in FIG. 4, the withdrawal of the receiving base 2 from the storage portion 14 of the first base 1 is prevented by an arbitrary stopper means 5 provided between the first base 1 and the receiving base 2. The stopper means 5 in the illustrated example is a projecting piece provided at the base end portion of the receiving rod 2, and this comes into contact with the peripheral edge of the opening of the storage portion 14, thereby preventing the receiving rod 2 from coming out.
[0017]
Moreover, as shown in FIG. 4, between the 1st base | substrate 1 and the receiving hook 2, for example, the latching protrusion 61 and the receiving hook which were integrally provided in the opening edge part of the accommodating part 14 of the 1st base | substrate 1 are received. 2 is provided with a locking means 6 comprising an engaging hole 62 provided in a portion corresponding to the bulging head 21 in FIG.
[0018]
The locking means 6 is a storage portion on the opposite side of the locking means 6 when the receiving rod 2 is pushed by a finger and stored in the storage portion 14 of the first base 1 against the urging force of the protruding spring 4. Since the receiving spring 2 is inclined with respect to the axis of the storage portion 14 by the pressing spring 7 such as a U-shaped spring provided in 14, it automatically operates.
[0019]
However, in the case of the one not having the push spring 7, after the receiving rod 2 is pushed into the storage portion 14 with fingers, the bulging head 21 of the receiving rod 2 is slightly pushed in the direction of arrow C in FIG. The stopping means 6 is in the engaged state, and the receiving rod 2 is kept in the storage position as it is.
[0020]
Next, the main part of the present invention will be described.
For example, a plate-like release lever 8 that can swing around the pivot 81 is pivoted between the outer portion at the distal end of the first base 1 and the mounting piece 15 that projects integrally with the mounting flange 13. To wear.
[0021]
As clearly shown in FIG. 5, at one end of the release lever 8, an action portion 82 that abuts the position when the connecting rod 3 is displaced from the non-use position to the operating position is provided integrally or separately. The other end of the lever 8 is engaged with the bulging head 21 of the receiving rod 2 from the rear as the lever 8 swings to release the locking state of the locking means 6. Are provided integrally or separately.
[0022]
The release lever 8 in the illustrated example has an integral projecting piece projecting at right angles in opposite directions at both ends of a plate-shaped main body portion, one serving as an action portion 82 and the other serving as an engaging portion 83.
[0023]
1 to 4, all of the receiving rods 2 are in the storage position (immersion position) with respect to the first base 1, and in order to project this to the operating position, the connecting rod 3 attached to the door or the door frame is used. It may be swung by hand from the non-use position to the use position (the connecting rod 3 shown by a chain line in FIG. 1 represents the state at the use position).
[0024]
When the connecting rod 3 is swung by hand to the use position (operating position), a part thereof presses the action portion 82 of the release lever 8 as shown by an arrow A in FIGS. 8 is swung around the pivot 81.
[0025]
Here, the engaging portion 83 of the release lever 8 pushes up the bulging head 21 of the receiving rod 2 in the direction to release the locked state (engaged state) of the locking means 6 as shown by the arrow B in FIG. Therefore, the locking means 6 is disengaged, and the receiving rod 2 automatically protrudes to the operating position indicated by the chain line in FIGS.
[0026]
The protruding position of the receiving rod 2 is held by the stopper means 5. In this state, since both the connecting rod 3 and the receiving rod 2 are in the door guard operating position, the degree of opening of the door is limited to be small due to the engagement relationship between them.
[0027]
In addition, what is necessary is just to perform operation as mentioned above in order to return the receiving rod 2 to a storage position (immersion position).
[0028]
【The invention's effect】
The door guard according to the present invention described above has a state where the receiving rod is locked by the locking means at the storage position on the first base when the connecting rod is manually swung from the non-use position to the use position. Regardless of having the function of automatically releasing by the release lever and projecting the receiving rod to the operating position, the structure is extremely simple.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a door guard according to the present invention.
FIG. 2 is a plan view thereof.
FIG. 3 is a partial longitudinal side view thereof.
4 is a cross-sectional view taken along line IV-IV in FIG.
5 is an enlarged perspective view of a release lever removed from the door guard of FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Door frame 1 1st base | substrate 14 Storage part 2 Receptacle 21 Bumping head 3 Connecting bar 31 Insertion part 32 Guide long hole 4 Protruding spring 5 Stopper means 6 Locking means 8 Release lever 82 Action part 83 Engagement part

Claims (1)

A hollow first base body having a storage portion fixed to the indoor side of the door frame, a receiving rod having a bulging head mounted so as to protrude into the storage portion of the first base body, and fixed to the indoor side of the door. A second base that is pivotally attached to the second base so as to be swingable in a horizontal plane, and a guide slot that is slidably fitted into the insertion portion through which the bulging head of the receptacle is inserted. A connecting rod provided in series, a projecting spring mounted in the housing portion of the first base, and biasing the receiving rod in a direction projecting from the housing portion of the first base, and between the first base and the receiving rod Provided with stopper means for preventing the receiving rod from coming out, and locking means provided between the first base and the receiving rod for selectively locking the receiving rod in the storage state. Tilt in the receiving direction, and open the door or sliding door with the swollen head of the receiving hole penetrating the insertion part of the connecting rod. In the door guard adapted to be fitted into the inner long hole, a release lever pivotally attached to the center portion is provided outside the first base body, and a connecting rod is tilted to the receiving side at one end of the release lever. An engaging portion that is provided with a working portion that comes into contact with the insertion portion, and that engages with the bulging head of the receiving member as the release lever swings to release the locking state of the locking means at the other end. A door guard characterized by providing.

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