JP2001140508A - Door handle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door handle device which is convenient in use and smooth in operation and has a simple structure. SOLUTION: An upper end of a handle 1 extending in the vertical direction substantially in parallel with a door face in the vicinity of a free side end fringe of a door 2 is arranged in such a way that it is overlapped on a lock box supporting a latch bolt in the direction of depth to support and guide the whole of it so as to turn around a vertical shaft. One end part of a drive spring 11 which consists of a circular arc part 13 and a straight part 14 in contact with the circular arc part 13 continuously and whose whole shape is like J character is wound around an operation body 9 mounted at an upper end of the handle coaxially, and one end of the drive spring 11 is fixed on an outer peripheral face of the operation body 9. The other end of the drive spring faces a latch bolt operation mechanism in the lock box so as to engaged by passing through a first support seat 4 mounted on the door face, the door face 2, and a side face of the lock box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door handle device, and more particularly to a door handle device which is easy to use and has a simple structure.

[0002]

2. Description of the Related Art The present applicant has previously described, for example, Japanese Patent Application No.
No. 88783, Japanese Patent Application No. 7-97786, Japanese Patent Application No. 8-1
No. 40884 or Japanese Patent Application No. 9-200989 has proposed a novel door handle device.

[0003] In any of these door handle devices, the handle is guided so as to be movable relative to the door in the expected direction of the door, that is, in a direction perpendicular to the door surface. The latch bolt is retracted into the lock box using relative movement with respect to the door surface.

Therefore, for example, in the case of 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 the direction close to the door. There is an advantage that the operation of pulling in the latch bolt and the operation of opening the door can be performed in one operation in the same direction by grasping and pushing this to the outside of the room.

When the door is operated from the outside, the latch bolt is pulled into the lock box by pulling the handle on the outside of the room to open the door, and after entering the room, the handle on the room side is pulled to close the door. Do not operate the latch bolt when pulling the handle.

In this case, as in the conventional case, the latch bolt is automatically pulled into the lock box by the wedge action generated by the engagement between the slope of the outer end of the latch bolt and the strike, and the door is completely closed. Then, the latch bolt projects from the front plate by the elastic force of the latch bolt spring, and is automatically inserted into the latch bolt hole of the strike plate.

[0007]

The door handle device having the above structure can operate the latch bolt and open / close the door continuously by one operation of the hand holding the handle in one direction. Although there is an advantage, since the handle can be relatively moved with respect to the door, there remains a grudge that the opening and closing operation of the door has a little psychological discomfort.

[0008] That is, the external operation members of a normal door, such as a knob, a lever or a handle, are fixed to the door surface, and the resident is accustomed to it, so that the handle is movable in the expected direction, in other words, There is a little psychological or ergonomic resistance, even if it is necessary to pull the latch bolt into the lock box.

Further, since the handle is usually guided in a direction parallel to the door surface so as to be movable in the expected direction, the handle is often supported by a link mechanism, and thus there is an inconvenience that the structure becomes complicated.

Furthermore, the mechanism for moving the handle relative to the door to retract the latch bolt into the lock box requires that the door be temporarily locked to the door frame via the latch bolt. In this case, since the lateral pressure from the strike plate is applied to the latch head at the tip of the latch bolt, there is also a disadvantage that there is a little resistance to the handle operation, in other words, the handle operation is not smooth.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door handle device which solves the above-mentioned various inconveniences, is easy to use, has a simple structure, and operates smoothly.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a latch bolt which supports one end of a handle extending in a direction substantially parallel to a door surface and near a free side edge of the door. The handle 1 is arranged so as to be superposed in the expected direction, and one end of the handle 1 is attached to a first support seat attached to the door surface, the other end is attached to a second support seat, and the entire handle is a vertical axis. It consists of an arc part formed by bending and forming one end of a tape-shaped elastic body in a thickness direction at a constant curvature, and a linear part connected to the arc part. One end of the J-shaped drive spring is coaxially mounted on one end of the handle, and is wound around an operating body having a radius slightly larger than the arc portion of the driving spring, and one end of the driving spring is connected to the outer peripheral surface of the operating body. And the other end of the drive spring on the door surface First support seat mounted, characterized in that to face the engageable with the latch bolt operating mechanism within by penetrating the side surface of the door surface and lock box lock box.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 indicates an outdoor handle,
This handle 1 is located on the inner surface near the free side edge of the door.
It is a rod-like body that is substantially parallel to the inner surface or outer surface of the door 2 (the outer surface shown in FIG. 2) and extends in the vertical direction.

It should be noted that the present invention is not limited to a linear rod-shaped handle as shown in the illustrated embodiment, but also to a long and thin plate-shaped handle, a handle having an arbitrary cross-sectional shape, a handle slightly curved as a whole, and the like. Applicable to handle of shape.

The operation of the door handle device according to the present invention will be described first. For example, an arbitrary portion of the handle 1 is gently grasped and turned in the direction of arrow A (counterclockwise as viewed from above) by, for example, 60 to 70 degrees. As a result, the latch bolt is pulled into the lock box, and the door is opened by opening the door 2 by pulling the handle, for example, with the handle in the operating position, and the user enters the room.

After the latch bolt is removed from the strike plate of the door frame and the door is slightly opened, it is not necessary to restrain the handle in the operating position.

The handle 1 in the embodiment shown in FIG.
As shown in FIG. 3 and FIG. 3, one end (upper end) of the pipe is a circular pipe having a circular cross section, and one end (upper end) is buried in the free side edge of the door 2 to support a latch bolt (not shown) and the door 2 Are arranged so as to overlap in the expected direction (the horizontal direction in FIG. 2).

One end of the handle 1 has a first support seat 4
The other end (lower end) is supported and guided by the second support seat 5 so as to be rotatable around a vertical axis.

Each support seat 4 (5) in the illustrated embodiment
Are the bases 6 attached to the door surface in order from the one closer to the door surface,
An oval-shaped connecting portion 7 and a cup-shaped guide tube portion 8 having a substantially elongated cross section are integrally connected.

As shown in FIG. 3, the guide tube 8 has a first support seat 4 with an opening facing downward and a second support seat 5 with an opening facing upward.

Further, at least the connecting portion 7 of the first support seat 4 is hollow as shown in FIG. 4, and is configured to allow a straight portion of a driving spring to be described later to pass therethrough.

On the other hand, as shown in FIG. 3, at the upper end opening of the handle 1, a small-diameter portion below the operating body 9, whose large-diameter portion is a stepped short cylinder having the same diameter as the outer diameter of the handle 1, is provided. The operating body 9 is attached to the upper end of the handle 1 in this manner by fitting means such as press fitting, shrink fitting or screwing.

As shown in FIGS. 2 and 3, one end (right end) of the drive spring 11 is provided at the small diameter portion above the operating body 9.
Is wound around one end of the spring stopper piece 12.
, And is screwed by an unnumbered countersunk screw.

The drive spring 11 is, for example, a tape-shaped strip formed by cutting a thin metal plate or a synthetic resin plate into an elongated shape. In order to avoid buckling, the width, length, and thickness of the latch bolt operating mechanism are set appropriately in accordance with the load of the latch bolt operating mechanism and the material of the drive spring.

Further, the drive spring 11 is provided with the driving spring 11 shown in FIGS.
As shown in (1), one end (right end) is bent at a constant curvature in the thickness direction to form an arc portion 13, and a straight portion 14 is connected to the arc portion 13.

Further, in order to increase the rigidity of the drive spring 11, the cross section of the drive spring 11 can be made into a middle and high arcuate shape (convex) like a tape measure (see FIG. 4).

One end of the drive spring 11 having the above-described structure is
As shown in FIG. 2 and FIG. 3, the handle 1 is wrapped around the upper end of the operating body 9 attached to one end of the handle 1 and one end is fixed as described above.

At this time, if the outer diameter of the operating body is set to be slightly larger than the curvature of one end of the driving spring 11, the driving spring 1
One end of 1 is in close contact with the operating body 9.

Incidentally, in order to pass the linear portion of the drive spring 11 through the connecting portion 7 of the first support seat, the drive spring 11 must be connected to one end of the handle 1 before being fitted to the guide tube portion 8 of the first support seat. Is wound around the operating body 9 and the other end is fixed by, for example, an adhesive tape.

Then, one end of the handle 1 is connected to the guide cylinder 8.
After that, the adhesive tape is peeled off by inserting tweezers from the opening on the back surface of the base 6 of the first support seat, and the linear portion 14 of the drive spring is introduced into the hollow portion of the connecting portion 7 and pulled out. .

In this state, when the other end (the left end in FIG. 3) of the drive spring 11 is slightly pulled out, the arc portion 13 having the same length as the drawn-out amount is obtained.
Is unwound (raised) and separates from the operating body 9.

Then, the unwound portion returns to its original position and attempts to rewind around the operating body 9, so that the other end of the drive spring 11 has an elastic force for urging it outward, ie, in the direction of the handle 1. Occurs.

Incidentally, a spring utilizing this is a spring which is called a natural contact type spiral spring, and is characterized by a spring constant close to 0 (zero). Alternatively, it is commercially available under the name Tenzatol® spring.

By utilizing this spring action, as shown in FIGS. 3 and 6, a guide slit 15 is formed at a predetermined position of the linear portion 14 of the drive spring along its length direction. The outer end is hooked on a locking pin 16 (see FIG. 4) projecting into the connecting portion 7 of the first support seat.

Then, the spring force acts as an internal force between the locking pin 16 and the operating body 11, and the position and the posture of the drive spring 11 are securely held.

A handle device having the same configuration as the 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, 17 (see FIG. 3). Attach inside and outside the surface.

For this reason, a female screw hole as a blind hole is formed in the inner surface of the outer support seat 6 joined to the door surface of the base 6 (not shown), and a hole through which the connecting screw is inserted is opened in the inner one. By inserting the connecting screw 17 into the hole from the indoor side and turning it, the outdoor-side support seat is called on the door surface and the indoor-side support seat is fixed to the door inner surface.

In the door handle device according to one embodiment of the present invention having the above-described structure, in a normal state where no external force acts on the handle 1, the inner and outer drive springs are provided by the elastic force of the arc portion 13 of the drive spring 11. The other end is at a standby position indicated by a solid line in FIG. 3, and the other end of the drive spring 11 is not engaged with the latch bolt operating mechanism.

Here, the latch bolt operating mechanism is as follows.
For example, it refers to a mechanism such as a retractor in a normal lock, or a lever device for changing the direction of force.

In the door handle device according to the embodiment of the present invention constructed as described above, for example, a household member who has returned from going out in FIG.
That is, when the dial is slightly turned counterclockwise when viewed from above, the arc portion 13 of the drive spring at one end of the handle is forcibly unwound, so that the linear portion 14 moves in the lock box direction, and the other end is latched. Push the operating mechanism to pull the latch bolt into the lock box.

At this time, the guide slit 1 of the drive spring 11
The stroke of the other end (operating end) of the drive spring can be defined by the length of 5.

In this state, if the handle 1 is pulled toward the user, the door opens outward, so that the handle 1 can be freely released at an appropriate time or pulled toward the user with the handle 1 in the operating position. Opens to allow people to enter and exit.

By the way, when the handle is released by releasing the handle 1, the unwound portion is quickly wound around the operating body 9 by the spring action of the arc portion 13 of the drive spring, and the handle 1 is returned to its original state. And 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.

That is, the drive spring 11 functions as a drive member of the latch bolt operating mechanism and also as a return spring of the handle 1.

At this time, since the handle 1 rotates only slightly about the vertical axis as a whole, and the handle 1 is immovable in the expected direction with respect to the door surface, the operation of the handle itself is not different from the conventional one.

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 regardless of whether the handle 1 is in the operating position or the standby position. You.

[0047]

As is apparent from the above description, according to the present invention, when the latch bolt is retracted, the vertically extending handle is gripped and slightly rotated about the vertical axis. At the time of pulling, the distance between the handle and the door surface does not change in the same manner as the conventional one, and therefore, the usability is good.

Further, since it is only necessary to rotatably support both ends of the handle and fix a drive spring to one end thereof, the structure is very simple in combination with the fact that this drive spring also serves as a return spring of the handle. become.

Further, since no lateral pressure is applied to the tip of the latch bolt when the handle device is operated, various effects such as smooth operation can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagrammatic front view of a door equipped with a door handle device according to an embodiment of the present invention, as viewed from the outdoor side.

FIG. 2 is a partially sectional plan view of a door handle device.

FIG. 3 is a partial cross-sectional side view of a door handle device.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is a plan view of a drive spring.

FIG. 6 is a side view of the 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 operating body 11 drive spring

Claims (1)

[Claims] 1. An end of a handle extending in a vertical direction substantially parallel to a door surface near a free side edge of the door is disposed so as to overlap with a lock box supporting a latch bolt in a prospective direction. One end of the handle 1 is supported and guided on a first support seat mounted on a door surface, and the other end is on a second support seat so that the entire handle can rotate around a vertical axis. An end portion of a drive spring having an arc shape formed by bending one end portion of an elastic body in a thickness direction at a constant curvature and a straight portion connected to the arc portion. Is attached coaxially to one end of the drive spring, and is wound around the working body having a radius slightly larger than the arc portion of the drive spring, and one end of the drive spring is fixed to the outer peripheral surface of the working body, while the other end of the drive spring is mounted to the door surface Through the first support seat, the door surface and the side surface of the lock box A door handle device, wherein the door handle device is engaged with a latch bolt operating mechanism in a lock box.