JP2004003356A - Lever handle for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lever handle for a door that can be very simply attached in accordance with the thickness of the door without causing a wobble. <P>SOLUTION: When a square core member 6 is inserted into a through hole 14, the common knurling of the through hole 14 receives a frictional force from the side 6a or the like of the square core member 6 treated by common knurling, a moving block 10, therefore, slides on a tapered hole 11b against springs 15 and 17 and moves in the direction of an arrow in Fig. 5(B). A pinching force by the wedge action of an upper block 12 and a lower block 13 and an urging force of the springs 15 and 17 facilitating that are applied to the square core member 6 once inserted into the through hole 14, disenabling the extraction. When the square core member 6 is inserted into a recessed hole 7 through a punched hole 11a and the through hole 14, a square core receptacle 8 is inserted and fitted into the mounting seat of the door 2 and the mounting of a grip 3 is finished at the position that makes further insertion impossible. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lever handle that is gripped when opening and closing various doors, and particularly to a door lever handle that can be easily attached to and detached from a door.
[0002]
[Prior art]
There have conventionally been various types of mounting structures for mounting the handle portions on both sides of the door in this type of lever handle.
As shown in FIG. 6, a lever handle 100 as one of the examples includes handle portions 102 and 103 provided on both sides of a lock box (fixed to a door or a sliding door) 101, respectively. A square shaft 104 attached to the portion 102 with a small screw or the like is attached with a shaft hole 105 of the handle portion 103 and fixed by screwing a set screw 106. In other words, an aspect in which one elongated ridge in the longitudinal direction of the square shaft 104 is sandwiched and the elongated locking plate 107 is joined to two adjacent surfaces 104a and 104b so as to be joined to each other, thus forming a right angle. (See Japanese Patent Application Laid-Open No. H11-163873) such that a set screw 106 is screwed into a locking plate 107 disposed in the bracket 103 to fix the square shaft 104 to the handle 103. 6A is a partial longitudinal plan view of the lever handle 100, and FIG. 6B is an enlarged cross-sectional view taken along line A1-A1 of FIG.
As shown in FIG. 7, a lever handle 200 as another example includes similar grip portions 201 and 202, and inserts a square core 203 attached to the grip portion 201 into a square hole 204 of the grip portion 202. Then, 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 comes into contact with 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 is formed. A stopper 205 provided with a spring 206 is housed in a protruding piece 205 b located on the opposite side. When the square core 203 is inserted into the square hole 204, an arc surface 205 a in which the square core 203 protrudes 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 it is attempted to pull out the square core 203 once inserted, the arc surface 205a causes the square core 203 to be supported 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]
JP-A-7-217267 (pages 2-3, FIGS. 1 and 2)
[Patent Document 2]
JP-A-10-252321 (pages 3 and 4, FIGS. 1 and 2)
[0004]
[Problems to be solved by the invention]
By the way, in the lever handle according to the above-described first example, the mounting structure of the two grips fixes the square shaft attached to the one grip to the other grip by screwing the set screw, and therefore, Although it is preferable in that a large fixing force can be applied to the square shaft and rattling of the square shaft can be prevented, it is cumbersome because it involves an operation of screwing in with a set screw.
Further, in the lever handle according to the following example, the mounting structure of the both grip portions is such that, when the square core is inserted into the square hole without screwing work, one grip portion having the square core attached thereto is replaced with the other grip portion. The fixing work is easy, but the fixing is performed by bringing the arc surface of the stopper into contact with the square core and applying the frictional force based on the pressing, and also by applying the teeth to the arc surface. Is formed, the meshing force between the teeth and the square core teeth depends on the urging force of the spring acting on the stopper, and the spring attached to the protruding piece of the stopper is Considering that the rocking easily causes deformation or buckling, 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. Further, there is a problem in that despite the structure in which the square core is apt to rattle with respect to the square hole, no preventive measure has been taken.
By the way, when the attachment structure of both handle portions is based on the engagement between the teeth of the stopper and the teeth of the square core, the engagement is performed at a position specified by a multiple of the pitch length. Even if the end of the square core is stopped where it comes 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 teeth of the square core mesh with each other. It must be noted that
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a lever handle for a door which can be securely and extremely easily attached to a lever handle attached to both sides of a door without rattling depending on the thickness between the both sides. It is in.
[0006]
[Means for Solving the Problems]
In order to solve the above problem, a door lever handle according to claim 1 of the present invention includes handles respectively attached to both sides of the door to open and close the door, and is fixed to one of the handles. A lever handle for inserting the elongated rectangular core member into a rectangular drilled hole or the like provided in the other handle portion and attaching these grip portions to the door. Forming a tapered hole surface having a gradually increasing gradient in the insertion direction of the core member, forming a tapered surface sliding on the tapered hole surface, and forming a flat knurled surface corresponding to the side surface of the core member subjected to the flat knurling. And a biasing means which is made of an elastic body such as a spring or rubber to resist sliding of the movable block. The core member is inserted into the perforated hole. Moving The lock slides on the tapered hole surface against the urging means by a frictional force acting on the flat knurling process corresponding to this side surface from the side surface of the core member on which the flat knurling process is performed. While moving in the direction in which the gradient gradually increases, even if an attempt is made to pull out the inserted core member, the core member receives the pinching force due to the wedge action of the movable block and the urging force of the urging means for promoting this. Therefore, pulling out becomes impossible.
[0007]
According to the door lever handle having such a configuration, since the core member is inserted into the perforated hole according to the thickness of the door to which the door handle is to be mounted, and the movable block is moved by the core member, it can be securely attached. This lever handle is very easy to install, and the lever handle is based on the taper fitting fit. There is no such thing as unbearable.
By the way, it is preferable that the movable block is configured so as to be cut into two in the gradient direction of the tapered surface, for example, since the pinching force by the wedge action is doubled.
The cross-sectional shape of the core member is generally a rectangular shape, but may be a polygonal shape such as a hexagon or a flat shape of a circular shape.
[0008]
Further, in the door lever handle according to claim 2 of the present invention, the above-mentioned perforated hole and the tapered hole surface are formed in a fixed block disposed on the shaft of the other handle. It is.
[0009]
BEST MODE FOR CARRYING OUT 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 handles 3 and 4 provided on both sides of the indoor door 2, respectively, and operates the handles 3 or 4. The door 2 can be opened and closed by moving 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, a specific configuration of the door lever handle 1 is an elongated rectangular square core member (core member) 6 fixed to the handle portion 3, which will be described later. The handles 3 and 4 are attached to both sides of the door 2 so as to be inserted into the holes 11a and the like. However, FIG. 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 viewed from the AA direction in FIG.
That is, the handle portion 3 includes a shaft portion 3a and a lever handle portion 3b that form a substantially L-shape, and a door 2 is provided on an end surface of the shaft portion 3a on the side of the handle portion 4 facing the shaft portion 4a described below. A square core receiver 8 for attaching the handle 3 is protruded, and the square core receiver 8 is provided with a square hole 8a for fitting the square core member 6 therein. A recess 9 for fitting the square core member 6 is formed in the shaft portion 3a so as to be connected to the square hole 8a, and the square core member 6 is formed in the recess 9 and the square hole 8a. The handle portion 4 is fixed to the shaft portion 4a of the handle portion 4 by projecting from the square hole 8a. By the way, in the present embodiment, the flat side knurling is performed on the side surface 6a of the extending portion of the square core member 6 and the side surface (not shown) opposite to the side surface 6a (FIG. 2 ( B)).
[0011]
The handle portion 4 includes the shaft portion 4a and the lever handle portion 4b, which are substantially L-shaped similar to the handle portion 3, and is provided on an end face of the shaft portion 4a facing the shaft portion 3a of the handle portion 3. A fixed block 11 for sliding the movable block 10 described below is attached to the handle 2 while the handle 4 is attached to the door 2, and a communication hole (described later) of the fixed block 11 is formed in the shaft 4a. Opposite to 11c, a concave hole 7 is formed for fitting the distal end portion 6b of the square core member 6, and the concave hole 7 allows an axis around the longitudinal direction of the square core member 6 to be around. The rattling is regulated, and further, the horizontal and vertical rattling with respect to the axis is regulated.
The fixing 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 is drilled in a state where the tapered hole 11b is connected to the installation hole 11a and the gradient thereof gradually increases in the insertion direction of the square core member 6 (the direction of the arrow in FIG. 5B). The communication hole 11c following the tapered hole 11b is formed. 3A is a front sectional view of the fixed block 11, and FIG. 3B is a view taken in the direction of the arrow B in FIG. 3A. In these drawings, 11d denotes the fixed block 11. A guide projection that can be inserted into a guide groove (not shown) of the shaft portion 4a when being disposed on the shaft portion 4a, and a fixing pin 11e for fixing the fixing block 11 to the shaft portion 4a. (Not shown) are holes to be inserted.
[0012]
Here, the movable block 10 that slides in the fixed block 11 will be described in detail with reference to FIG. 4 (A) is a front view of the movable block 10, FIG. 4 (B) is a view as viewed from an arrow C in FIG. 4 (A), and FIG. 4 (C) is a view in FIG. It is an arrow D view.
In the present embodiment, the movable block 10 has a configuration in which the movable block 10 is divided into two parts. That is, the movable block 10 has the same shape as the upper block 12 shown in FIG. 4 and is arranged as 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. Flat knurling is applied to the side surface 6a of the core member 6 and the side surface opposite to the side surface 6a (see FIG. 4C). The flat knurling process receives a frictional force from the side surface 6a of the square core member 6 on which the similar flat knurling process is performed, as the square core member 6 is inserted into the drilled hole 11a. Accordingly, the blocks 12 and 13 slide integrally with the surface of the tapered hole 11b via the tapered surfaces 12a and 13a.
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 as flat surfaces, and the guide surface 12b is provided in connection with the tapered surface 12a. In this way, although not shown, the lower block 13 also has the same configuration, whereby the rattling of the square core member 6 around the axis with its longitudinal direction as the axis is restricted, so that no vibration occurs around the axis. In addition, a convex portion 16 for seating a spring 15 described later protrudes from an end surface of the upper block 12 (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. It is arranged in a manner that resists sliding in the direction in which the gradient gradually increases. In the present embodiment, the mode in which the springs 15 and 17 are provided for the blocks 12 and 13 is shown. However, 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 provided with square holes 18 communicating with the tapered holes 11b, respectively (the square holes of the shaft portion 4a are not shown). While the window is formed, notch grooves 19 and 20 are provided in the upper block 12 and the lower block 13, respectively, and a square slit is formed by the notch grooves 19 and 20 so as to communicate with the operation window ( FIG. 2 (A)). Thus, when an operating tool such as a driver is inserted into the operation window and the movable block 10 is pushed by the operating 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 detachment 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 perforated hole 11a or the like on the handle portion 4 side, and FIG. 5B shows a state where the square core member 6 is inserted into the perforated hole 11a or the like. It is explanatory drawing showing the place where it is inserted.
Prior to attachment, the handle portion 4 is attached to a mounting seat (not shown) on one side of the door 2 via the fixing block 11 in advance. After that, the square core member 6 (actually, the grip portion 3 to which the square core member 6 is fixed) is 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 perforated hole 11a 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 perforated 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 a frictional force from the side surface 6a of the square core member 6 on which the similar flat knurling is performed. Due to such frictional force, the movable block 10 slides on the surface of the tapered hole 11b against the springs 15 and 17, and the gradient of the movable block 10 with respect to the tapered hole 11b gradually increases (the direction of the arrow in FIG. 5B). Move. As a result of this movement, it goes without saying that the upper block 12 and the lower block 13 of the movable block 10 are separated from each other.
However, even if it is attempted to pull out the square core member 6 once inserted into the through hole 14, the square core member 6 is pinched by the wedge action of the upper block 12 and the lower block 13, and the spring 15, which promotes this, Since the urging force by 17 is applied, pulling out becomes impossible.
[0016]
Then, when the square core member 6 is inserted into the concave hole 7 through the perforated hole 11a and the through hole 14, the square core receiver 8 is naturally inserted into the mounting seat (not shown) of the door 2, and Since the further insertion becomes impossible, the attachment of the handle part 3 is completed at the position where the insertion becomes impossible. Therefore, the mounting operator can securely mount the square core member 6 simply by inserting the square core member 6 into the perforated hole 11a without worrying about the thickness of the door 2.
In order to remove the attached grips 3 and 4, an operating tool is inserted through the operation window, and the movable block 10 is pushed in the direction of the arrow in FIG. 5B by the operating tool inserted into the slit. When the movable block 10 moves, the movable block 10 moves in the direction, and the engagement with the square core member 6 locked through the through hole 14 is released, so that the square core member 6 can be easily removed from the through hole 14. The handle portions 3 and 4 can be easily removed.
[0017]
In the above-described embodiment, the case has been described where the movable block 10 is constituted by the upper block 12 and the lower block 13 which are cut into two parts. However, in some cases, the movable block 10 is constituted by only the upper block 12. Of course, it is good.
[0018]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the lever handle for doors of this invention, with the lever handle respectively attached to both sides of a door, it becomes possible to attach reliably and extremely easily without rattling according to the thickness between both sides.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a door lever handle according to the present embodiment.
FIG. 2 is a configuration diagram of the door lever handle.
FIG. 3 is a configuration diagram of a fixing 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 a single door 2 doors 3, 4 handle 4a shaft 6 square core member (core member)
6a Side surface 10 Movable block 11 Fixed block 11a Drilled hole 11b Tapered hole 12 Upper block (movable block)
12a Tapered surface 13 Lower block (movable block)
14 through holes 15, 17 spring (biasing means)

Claims (2)

A handle is provided on each side of the door to open and close the door. An elongated rectangular core member fixed to one of the handles is provided with a rectangular punch provided on the other handle. A lever handle which is inserted into an installation hole or the like and attaches these handles to the door, wherein the lever handle communicates with the bore hole to form a tapered hole surface having a gradually increasing gradient in the insertion direction of the core member; A movable block having a flat knurled surface corresponding to the side surface of the core member having a flat knurled surface and a bias against sliding of the movable block. A lever handle for a door, characterized by comprising means. The lever handle for a door according to claim 1, wherein the perforated hole and the tapered hole surface are formed in a fixed block disposed on a shaft portion of the other handle portion.

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