JP4020547B2 - Door handle device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door handle device, and more particularly to a door handle device that is easy to use and has a simple structure.
[0002]
[Prior art]
The applicant of the present application has previously described a novel door handle device, for example, as disclosed in Japanese Patent Application No. 7-87883, Japanese Patent Application No. 7-97786, Japanese Patent Application No. 8-140884, or Japanese Patent Application No. 9-200909. Proposed.
[0003]
Each of these door handle devices guides the handle to be movable relative to the door in the door's expected direction, that is, in a direction perpendicular to the door surface, and opens and closes the door with respect to the door surface of the handle. The latch bolt is retracted into the lock box using relative motion.
[0004]
Therefore, for example, in a door that opens the door to the outside when going out of the room, the latch bolt is pulled into the lock box by pushing the handle in a direction close to the door. By pushing the door to the outdoor side, there is an advantage that the latch bolt pull-in operation and the door opening operation can be performed in one operation in the same direction.
[0005]
When this door is operated from the outside, the latch bolt is pulled into the lock box by pulling the handle on the outside of the door, and the door is closed by pulling the handle on the indoor side after entering the room. Do not operate the latch bolt when pulling.
[0006]
In this case, as in the conventional case, the latch bolt is automatically pulled into the lock box by the wedge action caused by the engagement between the slope of the outer end of the latch bolt and the strike, and the door is completely closed. The latch bolt projects from the front plate by the elasticity of the latch bolt spring and is automatically inserted into the latch bolt hole of the strike plate.
[0007]
[Problems to be solved by the invention]
Although the door handle device having the above-described structure has an advantage that the operation of the latch bolt and the opening / closing operation of the door can be continuously performed by one operation in one direction of the hand holding the handle, the handle is attached to the door. On the other hand, since it is relatively movable, there remains a grudge that the door opening / closing operation is somewhat psychologically uncomfortable.
[0008]
That is, an external operation member of a normal door, such as a knob, a lever or a handle, is fixed to the door surface, and the resident is accustomed to it, so the handle is movable in the prospective direction, in other words, it is wobbled. This is a little psychologically or ergonomically resistant, even if it is necessary to retract the latch bolt into the lock box.
[0009]
Further, since the handle is usually guided so as to be movable in the prospective direction in a state parallel to the door surface, the handle is often supported by a link mechanism, and there is a disadvantage that the structure becomes complicated.
[0010]
Furthermore, the mechanism that moves the handle relative to the door and retracts the latch bolt into the lock box requires that the door be temporarily locked to the door frame via the latch bolt. Since the lateral pressure from the strike plate is applied to the latch head at the tip of the handle, there is a disadvantage that the handle operation has a little resistance, in other words, the handle operation is not smooth.
[0011]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a door handle device that eliminates the above-mentioned various disadvantages, is easy to use, has a simple structure, and operates smoothly.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the present invention superimposes one end of a handle extending in a vertical direction substantially parallel to the door surface in the vicinity of a free side edge of the door in a prospective direction on a lock box supporting a latch bolt. In addition, one end of the handle 1 is supported on the first support seat mounted on the door surface, and the other end is supported on the second support seat so that the entire handle can rotate about the vertical axis. On the other hand, it consists of a circular arc part in which one end of a tape-like elastic body is bent in the thickness direction with a constant curvature, and a linear part connected to this circular arc part, and the overall shape is a J-shaped drive One end of the spring is coaxially attached to one end of the handle and is wound around an operating body having a radius slightly larger than the arc of the driving spring, and one end of the driving spring is fixed to the outer peripheral surface of the operating body. First support seat with the other end attached to the door surface, door surface Is passed through the side surfaces of the fine lock box is characterized in that to face the engageable with the latch bolt operating mechanism in lock box with.
[0013]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, reference numeral 1 denotes an outdoor handle, and the handle 1 is substantially parallel to the inner surface or outer surface of the door 2 (the outer surface shown in FIG. 2) in the vertical direction on the inner surface near the free side edge of the door. It is a rod-like body that extends.
[0014]
It should be noted that the present invention is not limited to a straight bar-like handle as in the illustrated embodiment, and has various shapes such as an elongated plate-like handle, a handle having an arbitrary cross-sectional shape, or a handle slightly curved in its entirety. Applicable to handle.
[0015]
The operation of the door handle device according to the present invention is described above. For example, the handle 1 is latched by lightly grasping an arbitrary position and turning it in the direction of arrow A (counterclockwise as viewed from above), for example, 60 to 70 degrees. With the bolt pulled into the lock box and the handle placed in its operating position, for example, the handle is pulled to open the door 2 and enter the room.
[0016]
After removing the latch bolt from the strike plate of the door frame and opening the door even a little, there is no need to restrain the handle in the operating position.
[0017]
As shown in FIGS. 2 and 3, the handle 1 in the illustrated embodiment is a pipe having a circular cross-sectional shape, and one end (upper end) thereof is embedded in the free side edge of the door 2, and is not shown. It arrange | positions so that it may overlap in the prospective direction (left-right direction in FIG. 2) of the lock box 3 and the door 2 which support a latch bolt.
[0018]
One end of the handle 1 is supported and guided by the first support seat 4 and the other end (lower end) thereof is supported by and guided by the second support seat 5 so as to be able to rotate around the vertical axis.
[0019]
The support seats 4 (5) in the illustrated embodiment are, in order from the side closer to the door surface, a base 6 attached to the door surface, an oval connecting portion 7 having a substantially elongated cross-sectional shape, and a cup-shaped guide tube portion. 8 is integrally connected.
[0020]
As shown in FIG. 3, the guide tube portion 8 has an opening facing downward in the first support seat 4, and the opening is directed upward in the second support seat 5.
[0021]
Further, at least the connecting portion 7 in the first support seat 4 is hollow as shown in FIG. 4 and is configured so that a linear portion of a drive spring described later can pass therethrough.
[0022]
On the other hand, as shown in FIG. 3, a small diameter portion below the operating body 9, which is a stepped short cylindrical body having a large diameter portion the same diameter as the outer diameter of the handle 1, is press-fitted and fired into the upper end opening of the handle 1. The operating body 9 is attached to the upper end of the handle 1 in such a manner that it is fitted by connecting means such as fitting or screwing.
[0023]
As shown in FIGS. 2 and 3, one end portion (right end portion) of the drive spring 11 is wound around the small-diameter portion above the operating body 9, and one end of the actuating body 9 is interposed through the spring stopper piece 12. It is screwed by countersunk screws.
[0024]
The drive spring 11 is, for example, a thin metal plate or a tape-shaped strip obtained by cutting a synthetic resin plate into an elongated shape, and drives the latch bolt operating mechanism by pushing the linear portion toward the lock box as will be described later. In order to avoid buckling, the width, length, and thickness of the latch bolt operating mechanism are appropriately set according to the load of the latch bolt operating mechanism and the material of the drive spring.
[0025]
Further, as shown in FIGS. 5 and 6, the drive spring 11 is formed by bending one end portion (right end portion) in the thickness direction with a constant curvature to form an arc portion 13, and a linear portion is formed on the arc portion 13. 14 is connected.
[0026]
Furthermore, in order to increase the rigidity of the drive spring 11, it is possible to make the cross-sectional shape of the drive spring 11 into a medium-high arc shape (convex) like a tape measure (see FIG. 4).
[0027]
As shown in FIGS. 2 and 3, one end of the drive spring 11 having the above-described configuration is wound around the upper end of the operating body 9 attached to one end of the handle 1, and the one end is fixed as described above. .
[0028]
At this time, when the outer diameter of the operating body is set to be slightly larger than the curvature of one end of the drive spring 11, one end of the drive spring 11 is in close contact with the operating body 9.
[0029]
Incidentally, in order to pass the straight portion of the drive spring 11 through the connecting portion 7 of the first support seat, before the one end portion of the handle 1 is fitted into the guide tube portion 8 of the first support seat, the straight portion of the drive spring. 14 is wound around the operating body 9, and the other end is fixed by, for example, an adhesive tape.
[0030]
Then, after one end of the handle 1 is fitted to the guide tube 8, tweezers are inserted from the opening on the back surface of the base 6 of the first support seat, the adhesive tape is peeled off, and the linear portion 14 of the drive spring is connected. It introduce | transduces in the hollow part of the part 7, and pulls out outside.
[0031]
In this state, when the other end (left end in FIG. 3) of the drive spring 11 is slightly pulled out, the arc portion 13 having the same length as the pull-out amount is unwound (unraveled) and separated from the operating body 9.
[0032]
Then, the unwound portion returns to the original state and tries to be wound around the actuating body 9 again. Therefore, the other end of the drive spring 11 is elastically biased outwardly, that is, toward the handle 1.
[0033]
By the way, the spring using this is a spring called a natural contact type spiral spring, and this spring is characterized by having a spring constant close to 0 (zero). It is marketed under the name of registered trademark spring.
[0034]
Using this spring action, as shown in FIGS. 3 and 6, a guide slit 15 is formed along a length direction of the linear portion 14 of the drive spring along the length direction thereof, and the outer end of the guide slit is connected to the outer end of the guide slit. It hooks on a locking pin 16 (see FIG. 4) that protrudes into the connecting portion 7 of the first support seat.
[0035]
Then, the spring force acts as an internal force between the locking pin 16 and the operating body 11, and the position and posture of the drive spring 11 are securely held.
[0036]
A handle device having the same configuration as the door handle device of the outdoor door configured as described above is also provided on the indoor side, and these are connected to each other by connecting screws 17 and 17 (see FIG. 3), and inside and outside of the door surface. Attach to.
[0037]
Therefore, a female screw hole as a blind hole is formed in the inner surface joined to the door surface of the base 6 of the outer support seat (not shown), and a hole through which a connecting screw is inserted is opened on the inner side. Then, by inserting the connecting screw 17 into the hole and turning it, the outside support seat is called on the door surface and the indoor side is fixed on the door inner surface.
[0038]
In the door handle device according to one embodiment of the present invention configured as described above, in the normal state where no external force acts on the handle 1, the other end of the inner and outer drive springs is caused by the elasticity exhibited by the arc portion 13 of the drive spring 11. 3, the other end of the drive spring 11 is not engaged with the latch bolt operating mechanism.
[0039]
Here, the latch bolt operating mechanism refers to, for example, a mechanism such as a retractor in a normal lock or a lever device that changes the direction of force.
[0040]
The door handle device according to one embodiment of the present invention constructed as described above is shown in FIG. 1, for example, when a housewife who has returned from going out grips the handle 1 lightly and grips the handle 1 in the direction of arrow A, that is, counterclockwise when viewed from above. When it is turned slightly, the arc portion 13 of the drive spring at one end of the handle is forcibly unwound, so that the straight portion 14 moves in the direction of the lock box, and the other end is latched by pushing the latch bolt operating mechanism. Pull the bolt into the lock box.
[0041]
At this time, the stroke of the other end (operating end) of the drive spring can be defined by the length of the guide slit 15 of the drive spring 11.
[0042]
Therefore, if the handle 1 is pulled to the front in that state, the door opens to the outside, so that the door 1 can be opened by opening the handle 1 at an appropriate time or by pulling the handle 1 in the operating position. People can go in and out.
[0043]
By the way, when the handle 1 is released by releasing the handle 1, the unwinded portion is immediately wound around the operating body 9 by the spring action exhibited by the arc portion 13 of the drive spring, and the handle 1 is returned to the original standby angle. While returning to the position, the other end of the drive spring 11 is quickly separated from the latch bolt operating mechanism and returns to the standby position shown in FIG.
[0044]
That is, the drive spring 11 functions as a drive member for the latch bolt operating mechanism and also as a return spring for the handle 1.
[0045]
At this time, the handle 1 as a whole only slightly rotates around the vertical axis, and the handle 1 does not move in the prospective direction with respect to the door surface.
[0046]
When the door is closed, the latch bolt is automatically inserted into the latch bolt hole by the wedge action between the slope of the tip of the latch bolt and the strike plate in both the operating position and the standby position.
[0047]
【The invention's effect】
As is clear from the above description, the present invention grasps the handle that extends vertically when the latch bolt is retracted, and slightly rotates around the vertical axis. The distance from the door surface does not change as in the conventional case, and is therefore easy to use.
[0048]
In addition, since both ends of the handle are pivotably supported and a drive spring only needs to be fixed to one end thereof, the structure becomes very simple due to the fact that this drive spring also serves as a return spring of the handle.
[0049]
Furthermore, since the side pressure is not applied to the tip of the latch bolt during operation of the handle device, various effects such as smooth operation are obtained.
[Brief description of the drawings]
FIG. 1 is a diagrammatic front view from the outdoor side of a door equipped with a door handle device according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional plan view of a door handle device.
FIG. 3 is a partial cross-sectional side view of a door handle device.
4 is a sectional view taken along line IV-IV in FIG. 2;
FIG. 5 is a plan view of a drive spring.
FIG. 6 is a side view of a drive spring.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Handle 2 Door 3 Lock box 4 1st support seat 5 2nd support seat 6 Base 7 Connection part 8 Guide cylinder part 9 Actuator 11 Drive spring

Claims (1)

One end of the handle 1 is arranged so as to overlap in the prospective direction with the lock box supporting the latch bolt, in the vicinity of the free side edge of the door. Are supported and guided by the first support seat mounted on the door surface and the other end portion by the second support seat so that the entire handle can rotate around the vertical axis. Consists of a circular arc part with one end bent in the thickness direction with a constant curvature and a linear part connected to this circular arc part, and the one end part of the J-shaped drive spring is coaxial with one end of the handle. A first support that is mounted and is wound around an operating body having a radius slightly larger than the arc portion of the driving spring and fixes one end of the driving spring to the outer peripheral surface of the operating body, while the other end of the driving spring is mounted on the door surface The rack in the lock box is inserted through the seat, door surface and side of the lock box. Door handle device being characterized in that to face the engageable with the bolt operating mechanism.

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