JP3995310B2 - Door lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door lock, and more particularly to a door lock having a handrail function.
[0002]
[Prior art]
In families where there are elderly people with limbs or blindness among the family members, it is necessary to provide handrails on the walls, doors, etc. for indoor walking, rising from the toilet seat, or leaning, When there are young cohabitation families, it is also necessary to consider arranging these types of handrails as inconspicuous as possible.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of such problems, and the object of the present invention is to impair duplication and appearance of the arrangement equipment by giving a handrail function to a lever necessary for opening and closing the door. The purpose is to provide a new door lock without the door.
[0004]
[Means for Solving the Problems]
That is, the door lock for the present invention to achieve the foregoing object, is horizontally fixed to the door via the leg portion, and a grip body that Yusuke width suitable for gripping by hand, and a length, the latch An operating lever coupled to the latch release function of the bolt, and the grip body has a recess formed in a part of its upper side, and the operation lever is pivoted so as not to protrude from the upper side of the grip body. It is supported [0005]
DETAILED DESCRIPTION OF THE INVENTION
Therefore, examples of the present invention will be described below.
1 and 2 show a first embodiment of the present invention.
[0006]
In the figure, reference numeral 1 denotes a horizontally oriented grip attached to both sides or one side of the door 8, and this body 2 formed in a width and length suitable for gripping by hand is attached to one end on the latch side. It has a cantilever shape with legs 3 and is configured to be a support when walking or standing up by firmly fixing the legs 3 to the door 8 or the case body of the door lock. Yes.
[0007]
The grip body 2 is provided with a recess 4 on a part of the upper side near the leg 3, and an operation lever 10 that is necessary only when the door 8 is opened and closed is attached thereto so as to be able to be pressed. .
[0008]
Further, the front surface of the grip body 2 is provided with a fitting portion for a display board or a decorative board, and a frame 7 integrated with the transparent plate 6 is detachably attached so as to cover the surface. On the other hand, by giving a display that can be identified with the palm or fingertips, such as Braille or engraved display, on the front or side of the grip body 2, It can also be configured so that the destination and the like can be understood.
[0009]
The operation lever 10 described above is pivotally supported by the grip body 2 via the support shaft 11 so as not to protrude from the upper side of the grip body 2 at all times. By pushing with a palm so as to push 10 into the recess 4, the slide cam is pushed in by an oblique pressing surface 12 provided at the tip thereof, and the latch bolt 16 is pulled in.
[0010]
That is, an arm portion 18a of a cam 18 that rotates with a shaft 17 as a fulcrum engages with a latch bolt 16 that is attached to the lock case body 14 while being always biased in a protruding direction by a spring 15. Further, the tip end of the slide cam 19 is in contact with the other arm portion 18 b of the rotating cam 18, and an inclined pressing surface 12 provided with a slope 19 a provided on the slide cam 19 at the tip of the operation lever 10. The latch bolt 16 is configured to be retracted through the rotating cam 18 by being pressed.
[0011]
The grip 1 thus configured is firmly fixed to the door 8 or the lock case main body 14 with its main body 2 facing in the horizontal direction. For this reason, the grip 1 is transmitted to persons with disabilities in limbs. It is a good support for walking and getting up.
[0012]
If it becomes necessary to open the door 8 under this state, the operating lever 10 is gripped together with the main body 2. As a result, the operating lever 10 rotated downward with the support shaft 11 as a fulcrum is brought into contact with the inclined pressing surface 12 at the tip of the operation lever 10 against the inclined surface 19a of the slide cam 19 and pushed inward, whereby the rotating cam 18 The latch bolt 16 is retracted through the door so that the door 8 can be opened.
[0013]
FIG. 3 shows a second embodiment relating to the operating mechanism of the latch bolt.
In this embodiment, a toggle-type link mechanism 27 that rotates in a direction in which the latch bolt 26 is always urged in the protruding direction by the spring 25 is coupled to the latch bolt 26, while the spring 28 is always in the non-operation direction. The other end 29b can be pressed by the operation end 22 of the operation lever 20 by engaging the tip 29a of the lever 29 biased by the link mechanism 27.
[0014]
In this embodiment, the latch bolt 26 can be retracted via the lever 29 and the link function 27 by grasping the operating lever 20 and rotating it around the support shaft 21.
[0015]
FIG. 4 shows still another embodiment relating to the operation function of the latch bolt.
In this embodiment, the rack 32 provided at the operation end of the operation lever 30 is engaged with the pinion 39 at the tip of the square shaft 38, and the latch bolt 36 is inserted by inserting the square shaft 38 into the square hole 37 a of the latch cam 37. In this embodiment, it can be applied with a slight modification before a general lock.
[0023]
【The invention's effect】
As described above, according to the present invention, the grip member is fixed to a part of the door, and the operating element coupled to the latch release mechanism is attached to a part of the grip member so as to be capable of being pressed. The handrail function necessary for walking can be given to the lever for opening and closing the door without damaging the door, and the operation element can be pressed at a position separated from the grip portion. By providing it, a person with a fingertip can be easily opened and closed without causing an erroneous operation.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the appearance of a door lock showing an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing an embodiment of a latch mechanism of the door lock.
FIG. 3 is an exploded perspective view showing another embodiment of the latch mechanism.
FIG. 4 is an exploded perspective view showing still another embodiment of the same latch mechanism.
[Explanation of symbols]
1 Grip 10, 20, 30 Operation lever 16, 26, 36 Latch bolt

Claims (1)

Is horizontally fixed to the door through the legs, and comprises a grip body that Yusuke width suitable for gripping by hand, and a length, and an operation lever attached to the latch release function of the latch bolt, the grip The main body has a recess formed in a part of its upper side, and the operation lever is pivotally supported by the recess so as not to protrude from the upper side of the grip body.

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