Door handle device

Abstract

To temporarily fix a second handle to a handle shaft only by fitting the second handle to the handle shaft.SOLUTION: A first handle 5 is fixed to one end of a handle shaft 4 penetrating a door lock 3, and a second handle 6 around which a shaft hole S is fit is detachably fixed to the other end of the handle shaft 4; and the handle shaft 4 is formed of a first half-split shaft 4A and a second half-split shaft 4B facing each other across a split groove W, and the second handle 6 is provided with a stopper 7 capable of entering the split groove W of the handle shaft 4. On the inner side of the shaft hole S of the second handle 6, a wedge part 6a is formed which is inserted into the split groove W from the other end of the handle shaft 4 to press the first half-split shaft 4A and second half-split shaft 4B against the wall surface of the shaft hole S.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a lever-type door handle device arranged on both sides of a door.

Background Art

[0002] Lever-type door handle devices are arranged on both sides of a door to move a latch bolt of a door lock forward and backward. As a conventional technique of this door handle device, there is a lever handle lock disclosed in Patent Document 1.

[0003] This conventional technique is a lever handle lock in which a handle shaft of a lever handle is inserted into a hub hole of a latch hub and a handle shaft mounting hole of the lever handle, and the lever handle is fixed to an end portion of the handle shaft. The handle shaft is composed of a first member and a second member. When these two members are inserted into the hub hole and the handle shaft mounting hole of the lever handle, a gap is formed on opposite surfaces of the two members. By inserting and pushing a wedge body such as a set screw from the outside of the lever handle into this gap, the two members are expanded and pressed against an inner wall surface of the hub hole of the latch hub and an inner wall surface of the handle shaft mounting hole of the lever handle to be pressure-fixed (claims of utility model registration).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The prior art can expand and press both members against the inner wall surface of the hub hole of the latch hub and the inner wall surface of the handle shaft mounting hole of the lever handle by pushing a wedge body such as a set screw into the gap between the first member and the second member of the handle shaft, and then crimp and fix them. However, until the wedge body is pushed in, there is a gap between the handle shaft and the hub hole of the latch hub, and the positional relationship between the two is unstable, making it difficult to fix the lever handle at an appropriate position with respect to the handle shaft. That is, the lever handle cannot be temporarily fixed to the handle shaft just by fitting the lever handle to the handle shaft.

[0006] In addition, base plates are fixed to the left and right of the door lock embedded in the door, and the end of the lever handle fitted to the handle shaft is rotatably supported by the support holes of the base plates. However, if there is a large gap between the handle shaft and the handle support holes of the base plates, play will occur in the lever handle, making it difficult to push the wedge body in with a set screw.

[0007] An object of the present invention is to provide a door handle device capable of solving such problems of the prior art.

[0008] An object of the present invention is to provide a door handle device that can be temporarily fixed only by fitting a second handle to a handle shaft by inserting a wedge portion provided at the back of the shaft hole of the second handle into a split groove to press the first split shaft and the second split shaft against the wall surface of the shaft hole.

Means for Solving the Problems

[0009] Specific means for solving the problems in the present invention are as follows: A first handle 5 is fixed to one end of a handle shaft 4 passing through a door lock 3, and a second handle 6 with a shaft hole S fitted thereto is detachably fixed to the other end of the handle shaft 4. The handle shaft 4 is formed by a first split shaft 4A and a second split shaft 4B facing each other with a split groove W interposed therebetween, and a stopper 7 that can enter the split groove W of the handle shaft 4 is provided on the second handle 6. This is a door handle device. At the back of the shaft hole S of the second handle 6, a wedge portion 6a is formed which is inserted into the split groove W from the other end of the handle shaft 4 and presses the first split shaft 4A and the second split shaft 4B against the wall surface of the shaft hole S.

Advantages of the Invention

[0010] According to the present invention, by simply fitting the second handle onto the handle shaft, the second handle can be temporarily fixed to the handle shaft.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0012] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0013] In FIGS. 1 to 7, a door handle device 1 is shown. In the door D, a door lock 3 having a latch bolt 3a is embedded. A handle shaft 4 for moving the latch bolt 3a in and out penetrates the door lock 3. Handles 5 and 6 for rotating the handle shaft 4 are arranged on both side surfaces of the door D. The first handle 5 is fixed to one end of the handle shaft 4 and is an out handle arranged on the outdoor side. The second handle 6 is detachably fixed to the other end of the handle shaft 4 and serves as an in handle arranged on the indoor side.

[0014] The handle shaft 4 is formed by overlapping two rectangular cross-section plates, resulting in a square cross-section angular shaft with a split groove W formed in the center. That is, the handle shaft 4 is formed by a first half-split shaft 4A and a second half-split shaft 4B facing each other with the split groove W in between.

[0015] On the side of the first handle 5 of the door D, a first base 21 fixed to the door D and a base cover 22 covering the first base 21 are arranged. A support hole 21a for rotatably supporting the boss portion 5a of the first handle 5 is formed in the center of the first base 21, and a guide cylinder 21b through which two connecting screws 24 are inserted is formed to protrude.

[0016] On the side of the second handle 6 of the door D, a second base 25 fixed to the door D and a base cover 26 covering the second base 25 are arranged. A support hole 25a for rotatably supporting the boss portion 6b of the second handle 6 is formed in the center of the second base 25, and a female screw cylinder 25b for screwing two connecting screws 24 is formed to protrude.

[0017] The first base 21 and the second base 25 are arranged to face each other with the door D sandwiched therebetween. Two connecting screws 25 are inserted into the guide cylinder 21b of the first base 21 inserted through the door lock 3, and the connecting screws 25 are screwed into the female screw cylinder 25b of the second base 25 to be clamped and fixed. By this fixing, the support hole 21a of the first base 21 and the support hole 25a of the second handle 6 become concentric, enabling the first handle 5 and the second handle 6 to be supported concentrically and rotatably.

[0018] That is, the first base 21 and the second base 25 are door constituent members for embedding and fixing the door lock 3 in the door D and arranging the handle support support holes 21a, 25a for supporting the first handle 5 and the second handle 6 concentrically and rotatably.

[0019] The first handle 5 has a shaft hole S with a square cross-section formed from the boss portion 5a to the back. This shaft hole S is fitted onto one end of the handle shaft 4, and a retaining roll pin 11 is passed through from the outside of the boss portion 5a and fixed. On the first split shaft 4A and the second split shaft 4B, a semi-circular arc recess 12 that engages with the retaining roll pin 11 is formed on the surface where the split groove W is formed.

[0020] The second handle 6 has a shaft hole S with a square cross-section formed from the boss portion 6b to the back. This shaft hole S is fitted onto the other end of the handle shaft 4, and a stopper 7 is screwed in and fixed. The tip of the screw of the stopper 7 is formed into the tip of a cone so that it can penetrate into the split groove W of the handle shaft 4.

[0021] At the back of the shaft hole S of the second handle 6, a thin plate wedge-shaped wedge portion 6a that gradually becomes thinner from the bottom of the shaft hole S toward the opening side is integrally formed. When the second handle 6 is fitted onto the other end of the handle shaft 4, the wedge portion 6a is inserted into the split groove W from the tip of the wedge portion 6a, and presses against the wall surface of the shaft hole S while pushing the first split shaft 4A and the second split shaft 4B apart.

[0022] The fitting tolerance between the shaft hole S of the second handle 6 and the handle shaft 4 is a loose one with a gap. However, when the wedge portion 6a bites into the split groove W and pushes the first split shaft 4A and the second split shaft 4B apart, the gap disappears, and the first split shaft 4A and the second split shaft 4B can be pressed against the wall surface of the shaft hole S.

[0023] The wall thickness, protruding dimension, amount of biting into the split groove W, etc. of the wedge portion 6a are set such that when the second handle 6 is fitted from the other end of the handle shaft 4 and abuts against the inner surface of the door D with the first handle 5 at one end of the handle shaft 4 abutting against the outer surface of the chamber of the door D, the wedge portion 6a bites into the split groove W and presses the first split shaft 4A and the second split shaft 4B against the wall surface of the shaft hole S.

[0024] The pressing of the shaft holes S of the first half shaft 4A and the second half shaft 4B by the wedge portion 6a is a temporary fixing of the second handle 6 to the other end of the handle shaft 4. Since the operator holds the first handle 5 with the left hand and fits the second handle 6 with the right hand, the second handle 6 can be fitted and fixed to the proper position, preventing the second handle 6 from swaying or coming off the handle shaft 4 during final fixing with the fastener 7.

[0025] On the opposing surfaces of the first half shaft 4A and the second half shaft 4B of the handle shaft 4 facing the split groove W of both, introduction inclined surfaces 8 with a tapered shape from the central side to the end of the handle shaft 4 are formed. This introduction inclined surface 8 forms the end width of the split groove W in a tapered shape so that the wedge portion 6a can be surely and easily introduced into the split groove W. Further, by forming the introduction inclined surface 8, the split groove W between the first half shaft 4A and the second half shaft 4B becomes wider, enabling the thickness of the wedge portion 6a to be ensured.

[0026] In FIGS. 2 to 7, on the opposing surfaces of the first half shaft 4A and the second half shaft 4B facing the split groove W, a V-groove recess 9 is formed where the tip of the fastener 7 penetrates to the central side of the handle shaft 4 from the introduction inclined surface 8 and expands the split groove W.

[0027] The V-groove recess 9 has inclined surfaces 9b inclined from one side of the first half shaft 4A and the second half shaft 4B to the inner side forming two V-shaped sides, forming a V-groove with a shallower depth from one side of the first half shaft 4A and the second half shaft 4B to the inner side. This inclined surface 9b becomes shallower from the central side of the handle shaft 4 toward the introduction inclined surface 8 side, and a latching wall 9a is formed at its end.

[0028] When the second handle 6 is detached from the other end of the handle shaft 4, the fastener 7 is loosened. However, when the loosening of the fastener 7 is slightly reduced, due to the presence of the latching wall 9a on the handle shaft 4 end side of the V-groove recess 9, the tip of the slightly loosened fastener 7 engages with the latching wall 9a, restricting it from coming off at once in the longitudinal direction of the handle shaft 4 from within the V-groove recess 9.

[0029] In addition, since the inclined surface 9b becomes shallower as it goes from the center side of the handle shaft 4 toward the introduction inclined surface 8, depending on the degree of loosening of the stopper 7, its tip may contact the inclined surface 9b before contacting the latching wall 9a, and still, it is possible to prevent the second handle 6 from coming off the handle shaft 4 at once.

[0030] When removing the second handle 6 from the other end of the handle shaft 4, first loosen the stopper 7 slightly to release the main fixation, then pull the second handle 6 until the tip of the stopper 7 hits the latching wall 9a, and move until the wedge portion 6a disengages from the split groove W to release the temporary fixation state. After that, further loosen the stopper 7 and completely remove the second handle 6 from the handle shaft 4.

[0031] The opposing surfaces facing the split groove W of the first half shaft 4A and the second half shaft 4B can form the inclined surface 9b over the entire length of the handle shaft 4. Even with such an inclined surface 9b, the tip of the stopper 7 can penetrate and act to expand the split groove W. However, the V-groove recess 9 with a partial inclined surface 9b that is not the full length is easier to process and it is also possible to form the latching wall 9a.

[0032] In the door handle device 1, providing the wedge portion 6a on the second handle 6 and forming the V-groove recess 9 into which the stopper 7 bites into the handle shaft 4 can be used to temporarily fix the second handle 6 to the handle shaft 4 before main fixation and to release the temporary fixation when removing the second handle 6 from the handle shaft 4.

[0033] That is, when attaching the second handle 6, the operator holds the first handle 5 with the right hand and fits the second handle 6 with the left hand, makes the wedge portion 6a bite into the split groove W, presses the first half shaft 4A and the second half shaft 4B against the wall surface of the shaft hole S, fits the second handle 6 to the proper position for temporary fixation, and then rotates the stopper 7 with an operating tool such as a driver to insert it into the V-groove recess 9 for main fixation.

[0034] When removing the second handle 6, loosen the stopper 7 and the first half shaft 4A and the second half shaft 4 Eliminate the spreading of B. At this time, if the tip of the stopper 7 remains in the V-groove recess 9 even after being separated from the inclined surface 9b, the second handle 6 can be displaced in the direction of removing it from the handle shaft 4. When the second handle 6 is displaced, the tip of the stopper 7 abuts against the latching wall 9a and stops during the removal in the longitudinal direction of the handle shaft 4, and the temporary fixing state is eliminated, but the situation where the second handle 6 comes off at once is prevented.

[0035] In the above-described embodiment, a first handle 5 is fixed to one end of a handle shaft 4 penetrating through the door lock 3, and a second handle 6 into which a shaft hole S is fitted is detachably fixed to the other end of the handle shaft 4. The handle shaft 4 is formed by a first half shaft 4A and a second half shaft 4B facing each other with a split groove W interposed therebetween. The second handle 6 is provided with a stopper 7 that can enter the split groove W of the handle shaft 4. A wedge portion 6a is formed at the back of the shaft hole S of the second handle 6, which is inserted from the other end of the handle shaft 4 into the split groove W and presses the first half shaft 4A and the second half shaft 4B against the wall surface of the shaft hole S.

[0036] With this configuration, by simply fitting the second handle 6 onto the handle shaft 4, the second handle 6 can be temporarily fixed to the handle shaft 4. And temporarily fixing the second handle 6 to the handle shaft 4 eliminates the play between the door (especially the seat for supporting the handle) and the first handle 5 and the second handle 6 sandwiching it, and the intrusion operation of the stopper 7 can be performed reliably and easily.

[0037] Also, in the above-described embodiment, the wedge portion 6a is integrally formed at the back of the shaft hole S of the second handle 6, and the opposing surfaces of the first half shaft 4A and the second half shaft 4B facing the split groove W are formed as an introduction inclined surface 8 that widens from the center side to the end of the handle shaft 4.

[0038] With this configuration, the wedge portion 6a provided at the back of the shaft hole S of the second handle 6 can be inserted into the split groove W of the handle shaft 4 reliably and easily, and the first half shaft 4A and the second half shaft 4B can be reliably pressed against the wall surface of the shaft hole S.

[0039] Furthermore, in the above-described embodiment, on the opposing surfaces facing the split grooves W of the first half shaft 4A and the second half shaft 4B, a V-groove recess 9 is formed such that the tip of the stopper 7 penetrates toward the center side of the handle shaft 4 from the introduction inclined surface 8 and expands the split groove W. On the end side of the handle shaft 4 of this V-groove recess 9, a latching wall 9a is formed to regulate the tip of the stopper 7 from coming off in the longitudinal direction of the handle shaft 4 from within the V-groove recess 9.

[0040] With this configuration, even if the stopper 7 is loosened and the fixing of the second handle 6 to the handle shaft 4 is released, as long as the tip of the stopper 7 is positioned within the V-groove recess 9, the second handle 6 can be restricted from coming off from the handle shaft 4 all at once in the longitudinal direction.

[0041] Note that the present invention is not limited to the above-described embodiment, and the shape, configuration, combination, etc. of the members can be changed.

[0042] For example, the wedge portion 6a may be formed separately from the second handle 6 and attached to the back of the shaft hole S.

[0043] Also, the split groove W may be formed by making a thin cut from the other end of the handle shaft 4 to near one end.

Explanation of Reference Numerals

[0044] 1 Door handle device 3 Door lock 3a Latch bolt 4 Handle shaft 4A First half shaft 4B Second half shaft 5 First handle 5a Boss portion 6 Second handle 6a Wedge portion 6b Boss portion 7 Stopper 8 Introduction inclined surface 9 Groove recess 9a Latching wall 9b Inclined surface 11 Stop roll pin 12 Semicircular arc recess 21 First base plate 21a Support hole 21b Guide cylinder 22 Base plate cover 24 Connecting screw 25 Second base plate 25 Connecting screw 25a Support hole 25b Female screw cylinder 26 Base plate cover D Door S Shaft hole W Groove

Claims

1. A first handle (5) is fixed to one end of a handle shaft (4) passing through a door lock (3), and a second handle (6) with a shaft hole (S) fitted thereto is detachably fixed to the other end of the handle shaft (4). The handle shaft (4) is formed by a first half shaft (4A) and a second half shaft (4B) facing each other with a split groove (W) interposed therebetween. The second handle (6) is provided with a stopper (7) that can enter the split groove (W) of the handle shaft (4). A door handle device, wherein at the back of the shaft hole (S) of the second handle (6), a wedge portion (6a) is formed which is inserted from the other end of the handle shaft (4) into the split groove (W) and presses the first half shaft (4A) and the second half shaft (4B) against the wall surface of the shaft hole (S). The door handle device is characterized by this.

2. The second handle (6) has a wedge portion (6a) integrally formed from the back of the shaft hole (S). The opposing surfaces of the split groove (W) of the first half shaft (4A) and the second half shaft (4B) facing each other are formed as an introduction inclined surface (8) that widens from the center side to the end of the handle shaft (4). The door handle device according to Claim 1, characterized by this.

3. On the opposing surfaces of the split groove (W) of the first half shaft (4A) and the second half shaft (4B) facing each other, a V-groove recess (9) is formed where the tip of the stopper (7) enters on the center side of the handle shaft (4) from the introduction inclined surface (8) and expands the split groove (W). On the end side of the handle shaft (4) of this V-groove recess (9), a latching wall (9a) is formed to regulate the tip of the stopper (7) from coming off in the longitudinal direction of the handle shaft (4) from within the V-groove recess (9). The door handle device according to Claim 2, characterized by this.

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