JP3851298B2 - Lever handle for door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lever handle that is gripped when opening and closing various doors, and more particularly to a door lever handle that can be easily attached to and detached from a door.
[0002]
[Prior art]
Conventionally, there are various types of attachment structures for attaching the handle portions to both sides of the door.
As shown in FIG. 6, a lever handle 100 as one example includes handle portions 102 and 103 disposed on both sides of a lock box (fixed to a door or a sliding door) 101, respectively. The square shaft 104 attached to the portion 102 with a small screw or the like is attached through the shaft hole 105 of the handle portion 103 and fixed by screwing a set screw 106. That is, a mode in which one ridge portion in the length direction of the square shaft 104 is sandwiched and along the two adjacent surfaces 104a and 104b so that the elongated locking plates 107 are joined to each other, thus forming a right angle. The locking shaft 107 is arranged so that the square shaft 104 is fixed to the handle 103 by screwing a set screw 106 (Patent Document 1). 6A is a partially longitudinal plan view of the lever handle 100, and FIG. 6B is an A1-A1 enlarged sectional view of FIG.
Further, as shown in FIG. 7, the lever handle 200 as another example includes similar handle parts 201 and 202, and a square core 203 attached to the handle part 201 is inserted into the square hole 204 of the handle part 202. The inserted square core 203 is supported by the stopper 205 in the depth direction of the square hole 204. That is, in the space connected to the square hole 204, a portion that contacts the square core 203 is formed on the arc surface 205a (the case where teeth are formed on the arc surface is also shown), and the arc surface 205a and A stopper 205 provided with a spring 206 is housed in a projecting piece 205b located on the opposite side, and when the square core 203 is inserted into the square hole 204, the arc surface 205a in which the square core 203 projects into the square hole 204. This causes the stopper 205 to rotate counterclockwise (in the direction of the arrow in FIG. 7B) against the spring 206, so that the square core 203 can be inserted into the square hole 204. Even if an attempt is made to pull out the square core 203 once inserted, the arc core 205 is supported by the arcuate surface 205a in the depth direction of the square hole 204, so that the mounting structure cannot be pulled out. (Patent Document 2). 7A is a perspective view of the lever handle 200, and FIG. 7B is an enlarged sectional view of A2 in FIG. 7A.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-217267 (pages 2 and 3, FIGS. 1 and 2)
[Patent Document 2]
Japanese Patent Laid-Open No. 10-252321 (pages 3 to 4, FIGS. 1 and 2)
[0004]
[Problems to be solved by the invention]
By the way, in the lever handle according to the first example described above, the attachment structure of both handle parts is to fix the square shaft attached to one handle part to the other handle part by screwing a set screw, and therefore Although it is preferable in that a large fixing force can be applied to the angular axis and rattling of the angular axis can be prevented, it is troublesome because it involves an operation of screwing with a set screw.
Further, in the lever handle according to the following example, the mounting structure of both handle portions is such that one handle portion to which the square core is attached is replaced with the other handle portion if the square core is inserted into the square hole without screwing. The fixing work is easy, but the fixing makes the arc surface of the stopper abut against the square core, and the frictional force based on the pressing force is applied to the arc surface. Is formed, the meshing force between the teeth and the teeth of the square core depends on the biasing force of the spring acting on the stopper, and the spring attached to the protruding piece of the stopper is Considering that it is likely to be deformed or buckled by swinging, it is presumed that it cannot withstand long-term use, and it is presumed that it is not easy to assemble these stoppers and springs in the space. In addition, there is a problem in that no measures are taken to prevent the square core from rattling with respect to the square hole despite the structure.
By the way, when the attachment structure of both handle parts is based on the meshing between the teeth of the stopper and the teeth of the square core, the meshing is performed at a position specified by a multiple of the pitch length. Even if the tip of the square core is brought into contact with the innermost part of the square hole, it does not necessarily coincide with the position where the teeth of the stopper and the square core are engaged, and this is a factor that causes rattling of the square core. It should be noted that
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a door lever handle that is attached to both sides of a door and that can be attached reliably and extremely easily without rattling depending on the thickness between the both sides. There is.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, a lever handle for a door according to claim 1 of the present invention includes handle portions respectively attached to both sides of the door for opening and closing the door, and is fixed to one of the handle portions. A lever handle that inserts the elongated rectangular core member into a rectangular drilling hole or the like provided in the other handle and attaches the handle to the door. A tapered knurl is formed corresponding to the side surface of the core member on which a tapered surface that slides on the tapered hole surface is formed and a flat knurl is formed. And a biasing means composed of, for example, an elastic body such as a spring or rubber, which resists sliding of the movable block, and inserts a core member into the drilled hole. As it goes, it is movable The lock slides on the taper hole surface against the biasing means by the frictional force acting on the flat knurling process corresponding to the side surface from the side surface of the core member subjected to the flat knurling process. While moving in the direction in which the gradient gradually increases, even if an attempt is made to pull out the core member once inserted, the core member is given a pinching force due to the wedge action of the movable block and a biasing force of a biasing means for promoting this. Therefore, it becomes impossible to pull out.
[0007]
According to the door lever handle having such a configuration, the core member can be securely attached only by inserting the core member into the drilled hole and moving the movable block with the core member according to the thickness of the door to which the door handle is attached. This lever handle is based on a taper fitting fit, and has a structure that does not easily wobble, and it can be used for a long time due to the above-mentioned reasons. There is no such thing as being unbearable.
By the way, if the structure of a movable block is divided into two in the gradient direction of the taper surface, for example, the clamping force by the wedge action is preferably doubled.
In addition, the cross-sectional shape of the core member is generally rectangular, but it may be polygonal, such as hexagonal, or it may be flattened circular.
[0008]
Further, the door lever handle according to claim 2 of the present invention is such that the above-described drilling hole and the tapered hole surface are drilled in a fixed block disposed in the shaft part of the other handle part. It is.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An example of an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the door lever handle 1 according to the present embodiment includes handle portions 3 and 4 disposed on both sides of the indoor door 2, and operates the handle portion 3 or 4. The door 2 can be opened and closed by advancing and retracting the latch 5 that protrudes from the side end of the door 2 and engages with a recess (not shown) of the door frame.
[0010]
As shown in FIG. 2, the door lever handle 1 has a specific configuration in which an elongated rectangular core member (core member) 6 fixed to the handle portion 3 is provided in the handle portion 4 as described later. The grip portions 3 and 4 are attached to both sides of the door 2 so as to face each other in a manner of being inserted into the holes 11a and the like. 2A is a partial cross-sectional front view of the handle 1 in FIG. 1, and FIG. 2B is a partial cross-sectional view as seen from the direction AA in FIG.
That is, the handle portion 3 includes a shaft portion 3a and a lever handle portion 3b that are substantially L-shaped, and the end portion of the shaft portion 3a on the side facing the shaft portion 4a of the handle portion 4 is provided on the door 2. On the other hand, an angular core receiver 8 for attaching the handle portion 3 is provided in a protruding manner, and an angular hole 8 a for inserting the angular core member 6 is formed in the angular core receiver 8. A concave hole 9 for fitting the square core member 6 is formed in the shaft portion 3a in a state of being connected to the square hole 8a, and the square core member 6 is formed in the concave hole 9 and the square hole 8a. In addition to being fixed with screws or the like, it protrudes from the square hole 8a and extends to the shaft portion 4a of the handle portion 4. By the way, in the present embodiment, flat knurling is applied to the side surface 6a of the extending portion of the square core member 6 and the side surface (not shown) located on the opposite side of the side surface 6a (FIG. 2 ( B)).
[0011]
Further, the handle portion 4 includes the shaft portion 4a and the lever handle portion 4b that form a substantially L shape similar to that of the handle portion 3, and the shaft portion 4a has an end surface facing the shaft portion 3a of the handle portion 3 on the end surface. The handle part 4 is attached to the door 2 and a fixed block 11 for sliding a movable block 10 to be described later is projected. Further, a communication hole (to be described later) of the fixed block 11 is provided in the shaft part 4a. A concave hole 7 for fitting the distal end portion 6b of the square core member 6 is formed so as to face 11c, and the concave hole 7 allows an axis around the longitudinal direction of the square core member 6 to be centered. Shaking is regulated, and further, rattling on the left and right and top and bottom with respect to the axis is regulated.
By the way, the fixed block 11 has a substantially cylindrical shape as shown in FIG. 3, and the above-described drilling hole 11a for inserting the square core member 6 is drilled in the cylinder. The tapered hole 11b described above is formed in such a manner that the gradient gradually increases in the insertion direction of the square core member 6 (in the direction of the arrow in FIG. 5B) in a state of being continuously provided in the installation hole 11a. The communication hole 11c is formed following the taper hole 11b. 3A is a front sectional view of the fixed block 11, and FIG. 3B is a view taken in the direction of arrow B in FIG. 3A. In these drawings, 11d denotes the fixed block 11. A guide protrusion that can be inserted into a guide groove (not shown) of the shaft portion 4a when disposed on the shaft portion 4a, and 11e is a fixing pin for fixing the fixing block 11 to the shaft portion 4a. A hole portion (not shown) is inserted.
[0012]
Here, the movable block 10 that slides in the fixed block 11 will be described in detail with reference to FIG. However, FIG. 4 (A) is a front view of the movable block 10, FIG. 4 (B) is a view taken in the direction of arrow C in FIG. 4 (A), and FIG. FIG.
In the present embodiment, the movable block 10 is divided into two parts, that is, the upper block 12 shown in FIG. 4 and the same shape as that shown in FIG. A rectangular through-hole 14 into which the square core member 6 is inserted is formed by the blocks 12 and 13, and the through-hole 14 includes the corners described above. Flat knurling is applied to the side surface 6a of the core member 6 and the side surface located on the opposite side of the side surface 6a (see FIG. 4C). And this flat knurling process receives the frictional force from the side surface 6a etc. of the said square core member 6 in which the same flat knurling process was given as the square core member 6 was inserted in the drilling hole 11a. Thus, the blocks 12 and 13 are configured to slide integrally with the surface of the tapered hole 11b via the tapered surfaces 12a and 13a.
By the way, in the present embodiment, the tapered hole 11b and the tapered surface 12a of the upper block 12 that engages with the tapered hole 11b are formed in a plane, and a guide surface 12b is provided so as to be connected to the tapered surface 12a. (Although not shown, the same applies to the lower block 13), whereby the rattling of the square core member 6 around the axis with the longitudinal direction as the axis is restricted, and no vibration occurs around the axis. A projecting portion 16 is provided on the end face of the upper block 12 so as to seat a spring 15 described later (not shown, but the same applies to the lower block 13). One end of each of the spring (biasing means) 15 of the upper block 12 and the spring (biasing means) 17 of the lower block 13 is seated on the shaft portion 4a, and the taper hole 11b of the movable block 10 is formed. It arrange | positions in the aspect which resists the sliding to the direction where a gradient increases gradually. In the present embodiment, the mode in which the springs 15 and 17 are provided for the blocks 12 and 13 is shown, but one spring may be provided for the blocks 12 and 13.
[0013]
By the way, the shaft portion 4a of the handle portion 4 and the fixed block 11 are each provided with a square hole 18 communicating with the tapered hole 11b (the square hole of the shaft portion 4a is not shown). While the window is formed, the upper block 12 and the lower block 13 are provided with cutout grooves 19 and 20, respectively, and the cutout grooves 19 and 20 form a rectangular slit so as to communicate with the operation window ( FIG. 2 (A)). Thereby, for example, when an operation tool such as a driver is inserted into the operation window and the movable block 10 is pushed by the operation tool inserted into the slit, the movable block 10 is locked through the through hole 14. Since the engagement with the square core member 6 is released, the square core member 6 can be easily pulled out.
[0014]
Next, attachment and removal of the handle 1 will be described with reference to FIG. However, FIG. 5A shows a state before the square core member 6 is inserted into the drilling hole 11a or the like on the handle portion 4 side, and FIG. 5B shows that the square core member 6 is inserted into the drilling hole 11a or the like. It is explanatory drawing showing the place inserted.
Before the attachment, the handle portion 4 is attached in advance to an attachment seat (not shown) on one side of the door 2 via the fixed block 11. Thereafter, in order to insert the square core member 6 (actually, the handle portion 3 to which the square core member 6 is fixed) into the drilling hole 11a and the like, they are arranged to face each other as shown in FIG. Then, the square core member 6 is inserted little by little or at a time into the hole 11a or the like as shown in FIG.
[0015]
Thus, the square core member 6 is inserted into the through hole 14 of the movable block 10 through the drilling hole 11a. However, as the square core member 6 is inserted into the through hole 14, the flat knurling of the through hole 14 receives frictional force from the side surface 6a of the square core member 6 subjected to the same flat knurling, Due to the frictional force, the movable block 10 slides on the surface of the tapered hole 11b against the springs 15 and 17, and the gradient gradually increases with respect to the tapered hole 11b (the direction of the arrow in FIG. 5B). Move. It goes without saying that the upper block 12 and the lower block 13 of the movable block 10 are separated from each other with this movement.
However, even if an attempt is made to pull out the square core member 6 once inserted into the through hole 14, the square core member 6 has a clamping force due to the wedge action of the upper block 12 and the lower block 13, and a spring 15, which promotes this. Since the urging force by 17 is applied, the withdrawal becomes impossible.
[0016]
Then, when the square core member 6 is inserted into the concave hole 7 through the hole 11a and the through hole 14 in this way, the square core receptacle 8 is naturally inserted into the mounting seat (not shown) of the door 2, Since no further insertion is possible, the attachment of the handle portion 3 is completed at the position where the insertion is impossible. Therefore, the attachment operator can be surely attached only by inserting the square core member 6 into the perforation hole 11a or the like without worrying about the thickness of the door 2.
Further, when removing the attached handle portions 3 and 4, the operation tool is inserted from the operation window, and the movable block 10 is pushed in the direction of the arrow in FIG. 5B by the operation tool inserted into the slit. When the movable block 10 moves, the movable block 10 moves in this direction, and the engagement with the square core member 6 locked through the through hole 14 is released. Therefore, the square core member 6 can be easily removed from the through hole 14. It can be pulled out and both handle parts 3 and 4 can be easily removed.
[0017]
In the above-described embodiment, the case where the movable block 10 is divided into two parts and the upper block 12 and the lower block 13 are described. However, in some cases, the movable block 10 is composed of only the upper block 12. Of course it is good.
[0018]
【The invention's effect】
According to the lever handle for a door of the present invention, the lever handle attached to both sides of the door can be reliably and extremely easily attached without causing rattling according to the thickness between the both sides.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a door lever handle according to an embodiment.
FIG. 2 is a configuration diagram of the door lever handle.
FIG. 3 is a configuration diagram of a fixed block of the door lever handle.
FIG. 4 is a configuration diagram of a movable block of the door lever handle.
FIG. 5 is an explanatory view showing before and after the door lever handle is attached.
FIG. 6 is a configuration diagram of a conventional door lever handle.
FIG. 7 is a configuration diagram of a conventional door lever handle.
[Explanation of symbols]
1 Lever handle for the door 2 Doors 3 and 4 Handle portion 4a Shaft portion 6 Core member (core member)
6a Side 10 Movable block 11 Fixed block 11a Drilling hole 11b Taper hole 12 Upper block (movable block)
12a Tapered surface 13 Lower block (movable block)
14 Through-holes 15 and 17 Spring (biasing means)

Claims (2)

A handle portion attached to each side of the door for opening and closing the door is provided, and an elongated rectangular core member fixed to one of the handle portions is provided in a rectangular shape provided in the other handle portion. In a lever handle that is inserted into a hole or the like and attaches the handle portion to the door, a tapered hole surface that communicates with the hole and forms a gradient that gradually increases in the insertion direction of the core member is formed. A movable block having a flat knurling process corresponding to the side surface of the core member having a flat knurling process, and a biasing force against the sliding of the movable block. A door lever handle characterized by comprising means. 2. The lever handle for a door according to claim 1, wherein the drill hole and the taper hole surface are formed in a fixed block disposed in a shaft portion of the other handle portion.

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