Door handle device

Abstract

To temporarily fix a second handle to a handle shaft simply by fitting the second handle to the handle shaft. [Solution] A first handle 5 is fixed to one end of a handle shaft 4 that penetrates a door lock 3, and a second handle 6, into which a shaft hole S fits, is detachably fixed to the other end of the handle shaft 4, the handle shaft 4 being formed of a first half shaft 4A and a second half shaft 4B that face each other with a split groove W interposed therebetween, and 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, and is inserted into the split groove W from the other end of the handle shaft 4 to press the first half shaft 4A and the second half shaft 4B against the wall surface of the shaft hole S.

Description

[Technical field]

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

[0002] A lever-type door handle device is disposed on both sides of a door to advance and retreat a latch bolt of a door lock. A lever handle lock disclosed in Patent Document 1 is an example of a conventional door handle device.

[0003] This prior art is a lever handle lock in which the handle shaft of a lever handle is inserted into the hub hole of a latch hub and the handle shaft mounting hole of the lever handle, and the lever handle is fixed to the end of the handle shaft.The handle shaft is composed of a first member and a second member, and when these two members are inserted into the hub hole and the handle shaft mounting hole of the lever handle, a gap is formed at the opposing parts of the two members.A wedge such as a setscrew is inserted and pushed into this gap from the outside of the lever handle, thereby expanding and pressing the two 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, thereby crimping and fixing them (Utility Model Registration Claims). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Jpn. Jpn. Published No. 62-24687 Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned prior art, a wedge such as a set screw is forced into the gap between the first and second members of the handle shaft, which causes the two members to be expanded and pressed against the inner wall surface of the hub hole in the latch hub and the inner wall surface of the handle shaft mounting hole in the lever handle, but until the wedge is forced in, there is a gap between the handle shaft and the hub hole in the latch hub, making the positional relationship between the two unstable and making it difficult to fix the lever handle in the correct position relative to the handle shaft. In other words, the lever handle cannot be temporarily fixed to the handle shaft by simply fitting it onto the handle shaft.

[0006] In addition, a base is fixed to the left and right sides of the embedded door lock in the door, and the end of the lever handle fitted to the handle shaft is supported so that it can rotate freely in the support hole in the base. However, if there is a large gap between the handle shaft and the handle support hole in the base, the lever handle will wobble and it may become difficult to push the wedge in with the locking screw.

[0007] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a door handle device that can solve the problems of the conventional technology.

[0008] The object of the present invention is to provide a door handle device in which the first and second half shafts can be pressed against the wall surface of the shaft hole by inserting a wedge portion provided at the back of the shaft hole of the second handle into a split groove, thereby allowing the second handle to be temporarily fixed simply by fitting it onto the handle shaft. [Means for solving the problem]

[0009] The specific means for solving the problem in the present invention is a door handle device in which a first handle 5 is fixed to one end of a handle shaft 4 that penetrates a door lock 3, and a second handle 6 that fits into a shaft hole S is detachably fixed to the other end of the handle shaft 4, the handle shaft 4 is formed of a first half shaft 4A and a second half shaft 4B that face each other with a split groove W interposed therebetween, and 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. The wedge portion 6a is inserted into the split groove W from the other end of the handle shaft 4 to press the first half shaft 4A and the second half shaft 4B against the wall surface of the shaft hole S. Effect of the Invention

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

[0011] [Figure 1] FIG. 1 is a plan view showing an embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view taken along line XX in FIG. 1. [Diagram 3] 3 is a cross-sectional view taken along line YY in FIG. 2. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 4 is a front view of the half shaft as seen from the split groove. [Figure 7] FIG. 2 is a perspective view of the half shaft as seen from the split groove. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0013] Figures 1 to 7 show a door handle device 1, in which a door lock 3 having a latch bolt 3a is embedded in a door D, a handle shaft 4 for extending and retracting the latch bolt 3a passes through the door lock 3, and 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 outside of the room, and the second handle 6 is removably fixed to the other end of the handle shaft 4 and is an in-handle arranged on the inside of the room.

[0014] The handle shaft 4 is formed by stacking two plates each having a rectangular cross section, forming a substantially square cross section with a central split groove W. That is, the handle shaft 4 is formed of a first half shaft 4A and a second half shaft 4B which face each other with the split groove W interposed therebetween.

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

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

[0017] The first seat base 21 and the second seat base 25 are disposed opposite to each other with the door D in between, and are fixed by inserting two connecting screws 25 into the guide tube 21b of the first seat base 21, which is disposed to be inserted into the door lock 3, and screwing the connecting screws 25 into the female thread tube 25b of the second seat base 25. This fixation makes the support hole 21a of the first seat base 21 and the support hole 25a of the second handle 6 concentric, making it possible to support the first handle 5 and the second handle 6 concentrically and rotatably.

[0018] In other words, the first seat base 21 and the second seat base 25 are door components for embedding and fixing the door lock 3 within the door D and for arranging handle 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, and this shaft hole S is fitted onto one end of the handle shaft 4 and fixed by passing a stop roll pin 11 through it from the outside of the boss portion 5a. The first half shaft 4A and the second half shaft 4B have semicircular arc recesses 12 formed on the surfaces forming the split groove W that engage with the stop roll pin 11.

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

[0021] A thin wedge-shaped wedge portion 6a that gradually becomes thinner from the bottom to the opening side of the shaft hole S is integrally formed at the back of the shaft hole S of the second handle 6. When the second handle 6 is fitted to the other end of the handle shaft 4, the tip of the wedge portion 6a is inserted 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 while pushing them apart.

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

[0023] The thickness, protruding dimensions, and amount of penetration into the split groove W of the wedge portion 6a are set so that when the first handle 5 at one end of the handle shaft 4 is abutted against the exterior surface of the door D and the second handle 6 is fitted from the other end of the handle shaft 4 and abuts against the interior surface of the door D, the wedge portion 6a will penetrate into the split groove W and press the first half shaft 4A and the second half shaft 4B against the wall surface of the shaft hole S.

[0024] The pressing of the first half shaft 4A and the second half shaft 4B against the wall surface of the shaft hole S by the wedge portion 6a serves to temporarily fasten the second handle 6 to the other end of the handle shaft 4. The operator can therefore hold the first handle 5 with his / her left hand while fitting the second handle 6 with his / her right hand, thereby enabling the second handle 6 to be fitted and fixed in the appropriate position and preventing the second handle 6 from shaking or coming off the handle shaft 4 when it is finally fastened with the stopper 7.

[0025] The first and second half shafts 4A and 4B of the handle shaft 4 are formed with an inclined lead-in surface 8 that diverges from the center of the handle shaft 4 to the end on the opposing surfaces facing the split groove W. This inclined lead-in surface 8 diverges the end width of the split groove W, allowing the wedge portion 6a to be reliably and easily introduced into the split groove W. Furthermore, by forming the inclined lead-in surface 8, the width of the split groove W between the first and second half shafts 4A and 4B becomes wider, so that the thickness of the wedge portion 6a can be ensured.

[0026] 2 to 7, a V-groove recess 9 is formed on the opposing surfaces of the first half shaft 4A and the second half shaft 4B facing the split groove W, so that the tip of the stopper 7 penetrates toward the center of the handle shaft 4 from the introduction inclined surface 8 to push open the split groove W.

[0027] The V-groove recess 9 has two sides of a V shape formed by inclined surfaces 9b inclined from one side of the first half shaft 4A and the second half shaft 4B toward the inside, forming a V-groove whose depth becomes shallower from one side of the first half shaft 4A and the second half shaft 4B toward the inside, and this inclined surface 9b becomes shallower from the center side of the handle shaft 4 toward the introduction inclined surface 8, and a hook wall 9a is formed at its end.

[0028] When the second handle 6 is removed from the other end of the handle shaft 4, the stopper 7 is loosened. However, if the stopper 7 is only loosened slightly, the presence of the hook wall 9a on the handle shaft 4 end side of the V-groove recess 9 causes the tip of the slightly loosened stopper 7 to hook onto the hook wall 9a, preventing it from coming out all at once from within the V-groove recess 9 in the longitudinal direction of the handle shaft 4.

[0029] In addition, since the inclined surface 9b becomes shallower from the center of the handle shaft 4 toward the introduction inclined surface 8, depending on the degree of loosening of the stopper 7, its tip may come into contact with the inclined surface 9b before abutting the hanging wall 9a, but even so, the second handle 6 can be prevented from coming off the handle shaft 4 all at once.

[0030] When removing the second handle 6 from the other end of the handle shaft 4, the stopper 7 is first loosened slightly to release the permanent fastening, and then the second handle 6 is pulled and moved until the tip of the stopper 7 hits the hanging wall 9a to release the temporary fastening state in which the wedge portion 6a is wedged into the split groove W, and then the stopper 7 is further loosened to completely remove the second handle 6 from the handle shaft 4.

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

[0032] In the door handle device 1, a wedge portion 6a is provided on the second handle 6, and a V-groove recess 9 into which the stopper 7 bites is formed on the handle shaft 4, which can be used to temporarily fasten the second handle 6 to the handle shaft 4 before it is permanently fastened thereto, and to release the temporary fastening when the second handle 6 is removed from the handle shaft 4.

[0033] That is, when attaching the second handle 6, the worker holds the first handle 5 with his right hand while fitting the second handle 6 with his left hand, fitting the wedge portion 6a into the split groove W and pressing the first half shaft 4A and the second half shaft 4B against the wall surface of the shaft hole S, fitting the second handle 6 to the appropriate position for temporary fixation, and then rotating the stopper 7 with an operating tool such as a screwdriver to insert it into the V-groove recess 9 for permanent fixation.

[0034] When removing the second handle 6, loosen the fastener 7 and remove the first and second half shafts 4A and 4B. If the tip of stopper 7 is separated from inclined surface 9b but remains in V-groove recess 9 at this time, second handle 6 can be shifted in the direction to be removed from handle shaft 4, and when second handle 6 is shifted, the tip of stopper 7 abuts against retaining wall 9a and stops it midway in the longitudinal direction of handle shaft 4, thus releasing the temporary fastening state, but preventing the second handle 6 from being removed all at once.

[0035] In the above-described embodiment, a first handle 5 is fixed to one end of a handle shaft 4 that penetrates a door lock 3, and a second handle 6 into which an axial hole S fits is removably fixed to the other end of the handle shaft 4. The handle shaft 4 is formed of a first half shaft 4A and a second half shaft 4B that face each other with a split groove W interposed therebetween, and 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 axial hole S of the second handle 6 and is inserted into the split groove W from the other end of the handle shaft 4 to press the first half shaft 4A and the second half shaft 4B against the wall of the axial hole S.

[0036] With this configuration, the second handle 6 can be temporarily fixed to the handle shaft 4 simply by fitting the second handle 6 to the handle shaft 4. Temporarily fixing the second handle 6 to the handle shaft 4 eliminates wobbling between the door (particularly the handle support base) and the first handle 5 and second handle 6 that sandwich it, making it possible to insert the stopper 7 reliably and easily.

[0037] In addition, in the embodiment, the second handle 6 has a wedge portion 6a integrally molded from the back of the shaft hole S, and the opposing surfaces facing the split groove W of the first half shaft 4A and the second half shaft 4B are formed into an inclined introduction surface 8 that flares out from the center of the handle shaft 4 to the end.

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

[0039] Furthermore, in the above embodiment, a V-groove recess 9 is formed on the opposing surfaces of the first half shaft 4A and the second half shaft 4B facing the split groove W, so that the tip of the stopper 7 penetrates toward the center of the handle shaft 4 from the introduction inclined surface 8 and widens the split groove W, and a retaining wall 9a is formed on the handle shaft 4 end side of this V-groove recess 9 to prevent the tip of the stopper 7 from coming out of the V-groove recess 9 in the longitudinal direction of the handle shaft 4.

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

[0041] The present invention is not limited to the above-described embodiment, and the shape, configuration, and combination 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 symbols]

[0044] 1 Door handle device 3 Door Lock 3a Latch bolt 4 Handle shaft 4A 1st half axis 4B 2nd half axis 5 First Handle 5a Boss part 6 Second Handle 6a wedge 6b Boss part 7 Fastener 8 Introductory slope 9 Groove recess 9a Hanging wall 9b Slope 11 Locking roll pin 12 Semicircular recess 21 1st seat 21a Support hole 21b Guide tube 22 Seat cover 24 Connecting screw 25 Second seat 25 Connecting screw 25a Support hole 25b female thread cylinder 26 Seat cover D Door S Shaft hole W Split groove

Claims

1. A door handle device comprising: a first handle (5) fixed to one end of a handle shaft (4) penetrating a door lock (3); a second handle (6) into which an axial hole (S) fits, and removably fixed to the other end of the handle shaft (4); the handle shaft (4) is formed of a first half shaft (4A) and a second half shaft (4B) facing each other with a split groove (W) interposed therebetween; and the second handle (6) is provided with a stopper (7) capable of entering the split groove (W) of the handle shaft (4), A door handle device characterized in that a wedge portion (6a) is formed at the back of the shaft hole (S) of the second handle (6) and is inserted into a split groove (W) from the other end of the handle shaft (4) to press the first half shaft (4A) and the second half shaft (4B) against the wall surface of the shaft hole (S).

2. The door handle device according to claim 1, characterized in that a wedge portion (6a) is integrally formed in the second handle (6) from the back of the shaft hole (S), 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 inclined lead-in surface (8) that flares out from the center of the handle shaft (4) to the end.

3. The door handle device according to claim 2, characterized in that a V-groove recess (9) is formed on the opposing surfaces of the first half shaft (4A) and the second half shaft (4B) facing the split groove (W) so that the tip of the stopper (7) enters toward the center of the handle shaft (4) from the introduction inclined surface (8) to push open the split groove (W), and a hook wall (9a) is formed on the handle shaft (4) end side of the V-groove recess (9) to prevent the tip of the stopper (7) from coming out of the V-groove recess (9) in the longitudinal direction of the handle shaft (4).

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