JP2009179962A - Fixing structure of handle for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely and firmly obtain the effect of preventing a handle from coming off and the effect of preventing a square shank from rotating with a rattle. <P>SOLUTION: In this fixing structure of the handle for a door, the handle and the square shank are integrally connected together via a fixing implement. In a connection between the handle and the square shank, an L-shaped or U-shaped cross-section fitting piece for preventing the square shank from coming off and preventing the square shank from rotating with the rattle, which has an engaging end plate portion engaged with an engaging groove formed in the square shank, is fitted into a recess which is formed in the outer wall surface of the tubular shank of the handle. The fitting piece is fixed to a supporting wall in the recess via the fixing implement. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a structure for fixing a door handle for an opening / closing body such as a sash-type opening / closing window of a building or an indoor door.

  Patent Document 1 states that “a rod-like body (1) is inserted coaxially into a cylindrical portion (2A) of an operating member (2) in which a screw hole (10) penetrating in a radial direction is formed on a peripheral side portion. Then, the set screw (9) is screwed into the screw hole (10), and the tip of the set screw (9) is pressed against the outer peripheral surface of the rod-like body (1), whereby the cylindrical portion (2A) is pushed into the rod-like body. In the fixing structure of the operating member fixed to (1), a portion of the outer periphery of the rod-shaped body (1) in contact with the tip of the set screw (9) in the direction in which the rod-shaped body (1) is removed. An operation member fixing structure in which an inclined surface (11) that is displaced toward the inside of the diameter of the rod-like body (1) as it goes is disclosed.

The embodiment described in Patent Document 1 has an advantage that the effect of preventing the handle from coming off can be sufficiently obtained. However, there is still room for improvement in order to ensure the effect of preventing the handle from coming off reliably and firmly (for example, the set screw 9 does not loosen even if used for many years).
JP-A-8-184225

  An intended object of the present invention is to reliably and firmly obtain the effects of preventing the handle from coming off and preventing the angle shaft from rotating at the installation site of the angle shaft and handle for the opening and closing body. In addition, for example, when the handle is attached to the wall of a sash window that can tilt the building, the handle is not dropped due to the loosening of the screw.

  The door handle fixing structure according to the present invention is a door handle fixing structure in which the handle and the square shaft are integrally connected via a fixing tool. The outer end wall surface of the cylindrical shaft portion of the handle is provided with an L-shaped or U-shaped cross-section for preventing the angular shaft from slipping and the anti-rotating rotation of the angular shaft. It fits into the recess formed in this, The fitting piece was fixed to the support wall in the said recess via the fixing tool.

(A) The effect of preventing the handle from coming off and preventing rotation of the angular shaft rattle can be obtained reliably and firmly. In addition, even if there is a play (including an error) in the dimension between the square shaft and the cylindrical shaft portion, it is possible to prevent backlashing movable seat rotation in the circumferential direction of the square shaft.
(B) Since the fitting piece is fitted into the recess from the outer peripheral surface side of the cylindrical shaft portion of the handle, and the fitting piece is fixed to the support wall in the recess via a fixing tool, The shaft can be easily fixed.
(C) In the invention according to claim 2, for example, when the handle is attached to the sash window of the building which can be tilted, the handle is not immediately dropped due to the loosening of the screw.

  The best mode (first embodiment) for carrying out the present invention shown in FIGS. 1 to 6 will be described below.

(1) Environment for Implementing the Invention First, FIG. 1 is a schematic explanatory diagram showing the environment for implementing the invention. In FIG. 1, reference numeral 1 denotes an opening / closing body such as a sash-type opening / closing window of a building, an indoor door, etc. A lock box (not shown) is provided at the free end portion (opening end portion) of the opening / closing body 1. . Although not particularly shown, the lock box is provided with a latch such as an inversion latch or a latch bolt, and the latch is urged by a latch spring so that the tip of the latch always protrudes from the front of the lock box.

  Next, reference numeral 2 denotes an inner handle (for example, a lever handle) that is rotatably attached via an inner seat constituent member (not shown) fixed to the inner wall surface of the opening / closing body 1. On the other hand, 3 is an outer handle (for example, a lever handle) which is rotatably attached via an outer seat constituent member (not shown) fixed to the outer wall surface of the opening / closing body 1. The inner and outer handles 2 and 3 are integrally connected via a rod-like body (hereinafter referred to as “square axis”) 4 called a square axis. Therefore, as is well known, for example, when the grip portion of the inner handle 2 is operated to be pushed down, the inner handle 2, the square shaft 4 and the outer handle 3 rotate integrally. When the inner handle 2 is pushed down, the latch is retracted into the lock box by a latch retracting mechanism (not shown), so that the inner handle 2 can be pulled forward.

  The inner and outer handles 2 and 3 each have a cylindrical shaft portion 6 having a small-diameter neck portion (boss portion) 5 at the distal end portion, and a gripping portion 7 provided in a row in the intersecting direction with the cylindrical shaft portion 6. And the cylindrical shaft part 6 thru | or the grip part 7 have the planar view L shape as a whole (refer FIG. 1). The cylindrical shaft portion 6 is formed with a required amount of a square shaft mounting hole 8 in the axial direction from the distal end surface of the neck portion 5. Therefore, the left and right end portions of the square shaft 4 are fitted into the shaft mounting holes 8 of the cylindrical shaft portion 6, or the cylindrical shaft portions 6 of the inner and outer handles 2, 3 are respectively inserted into the left and right end portions of the square shaft 4. Fit outside.

  Further, as shown in FIG. 1, the square shaft 4 called a handle shaft passes through an opening / closing body 1 including a lock box and a latch hub (not shown) and inner and outer seat constituent members (not shown). In general, the base end portion of the square shaft 4 is integrally fixed to the cylindrical shaft portion 6 of the outer lever handle 3 in advance, and the other end portion is an inner side fitting into the through hole of the inner seat constituent member. It is fixed to the cylindrical shaft portion 6 of the lever handle 2 via a screw hole and a set screw as a fixing tool screwed into the screw hole.

(2) Main part of the invention The door handle fixing structure X is engaged with the engagement groove 16 formed in the insertion end 4a of the square shaft 4 when the inner handle 2 and the rod-shaped square shaft 4 are connected, for example. A concave portion formed on the outer wall surface of the cylindrical shaft portion 6 of the handle with an L-shaped or U-shaped cross section having an engaging end plate portion 23 and a fitting piece 21 for preventing the angular shaft from coming off and preventing the rotation of the angular shaft rattling. The handle 10 is inserted into the place 11 and screwed from the attachment hole (for example, screw hole) 24 of the fitting piece 21 to the connecting hole 15 for the fixing tool of the square shaft 4, for example, via the fitting piece 21. 2 and the square shaft 4 are integrally connected.

(3) Specific Configuration First, the door handle fixing structure X of the present invention is based on the premise that the handle 2 and the square shaft 4 are integrally connected via the fixing tool 10. Next, as shown in FIGS. 2 and 3, the cylindrical shaft portion 6 of the handle 2 is formed with a required amount of a recess 11 on the outer wall surface in the radial direction, and the bottom surface of the inner wall of the recess 11. A mounting hole 13 for a fastener that communicates with the shaft mounting hole 8 is formed in the support wall 12 corresponding to.

  In the present embodiment, since the fixing tool 10 is a set screw having no head, the mounting hole 13 is a screw hole similar to the screw hole 24 formed in the central portion of the fitting piece 21. Of course, the attachment hole 13 may be a through hole when the fixing tool 10 has a head. In addition, a pair of insertion spaces 14 communicating with the shaft mounting holes 8 of the cylindrical shaft portion 6 are formed on the left and right end surfaces of the support wall 12 in the recess 11. These insertion spaces 14 are formed in a predetermined amount in the axial direction of the cylindrical shaft portion 6, for example.

  On the other hand, the square shaft 4 is formed at its insertion end 4a with a connecting hole 15 for a fixing tool that opposes a mounting hole 13 for the fixing tool. The connecting hole 15 may be a female screw depending on the type of the fixing tool 10, but in the present embodiment, the connecting hole 15 is an engagement hole into which the distal end portion 10a of the fixing tool 10 is engaged in a play state. Moreover, although the formation part of the connection hole 15 for this fixing tool is a matter which can be changed arbitrarily, it is formed in the one ridgeline part 17 formed, for example by two surfaces where the square axis 4 adjoins.

  A pair of notched engaging grooves 16 facing the insertion space 14 in the recess 11 are formed on the two adjacent surfaces. In addition, the engagement groove 16 of the square shaft 4 is formed symmetrically in the axial direction on the left and right with respect to the connecting hole 15 for the fastener.

  Next, the configuration of the fitting piece 21 for preventing the angular shaft from coming off and preventing the angular shaft from rotating is explained. As shown in FIGS. 2 and 5, the fitting piece 21 is formed in a channel shape (for example, a U-shaped cross section). Of course, this cross-sectional shape is not a limiting requirement, and for example, it can be formed in an L-shaped cross section.

  Thus, as shown in FIG. 6, the fitting piece 21 is formed in an arc shape with an outer surface curvature that is the same as the curvature of the outer peripheral surface of a polygonal cross section or a circular shape (this embodiment) at the time of fitting, and its inner surface is A base plate portion 22 that faces or contacts the outer surface of the support wall 12 of the recess 11, and a pair of left and right engagement end plate portions 23 that extend from both ends of the base plate portion 22 in a leg shape, A through hole (for example, a screw hole) 24 for a fixing tool is formed in the central portion of the base plate portion 22.

(4) At the time of connection The connection aspect of the handle | steering-wheel 2 and the square shaft 4 is demonstrated with reference to FIG.5 and FIG.6. First, the cylindrical shaft portion 6 of the handle 2 is externally fitted to the insertion tip portion of the square shaft 4. 5 shows that the insertion tip portion 4a of the square shaft 4 is fitted into the shaft mounting hole 8 of the cylindrical shaft portion 6 of the handle 2, or the cylindrical shaft portion 6 of the handle 2 is attached to the insertion tip portion 4a of the square shaft 4. It shows that it was fitted outside. In this case, if the through-hole 13 on the cylindrical shaft 6 side and the connecting hole 15 on the square shaft 4 side are matched, the insertion space 14 on the cylindrical shaft 6 side and the engagement groove 16 on the square shaft 4 also match. To do.

  Next, when the positioning of the through attachment hole 13 and the connecting hole 15 is finished, the fitting piece 21 is fitted into the recess 11 as shown in FIG. At this time, the pair of left and right engaging end plate portions 23 of the fitting piece 21 are passed through the insertion space 14 and engaged with the engaging groove 16 of the square shaft 4. Therefore, the channel-shaped fitting piece 21 is shaped to straddle the support wall 12 of the cylindrical shaft portion 6.

  Finally, the fixing tool 10 is screwed from the screw hole 24 of the fitting piece 21 to the connecting hole 15 for the fixing tool of the square shaft 4, and the handle 2 and the corner are connected to both the fixing tool 10 and the fitting piece 21. The shaft 4 is integrally connected. As shown in FIG. 6, the pair of left and right engagement end plate portions 23 of the fitting piece 21 are engaged with the left and right engagement grooves 16 so as to sandwich the ridge line portion 17 of the square axis. Can achieve the purpose and effect.

  7 and 8 (second embodiment) are obtained by arbitrarily changing the design and direction of the fitting piece 21, the insertion space 14 in the recess 11, and the engaging groove 16 on the angular axis side. is there. As in the second embodiment, for example, the engagement groove 16 on the angular axis side is formed on both side surfaces or one side surface forming the ridge line portion.

  Even if the design is changed such that the direction in which the engagement groove 16 is formed intersects the angular axis 4, the intended purpose and effect of the present invention can be achieved. For convenience of explanation, the terms and symbols in the second embodiment are the same as those in the first embodiment. Further, when the fixing tool 10 has a head, the connecting hole 15 of the insertion end 4a of the square shaft 4 may be formed in the female screw. In such a case, the other mounting holes 13, 24 are It may be a through-hole for a fastener.

  The present invention is mainly used in the locksmith and joinery industries.

1 to 6 are explanatory views showing the best embodiment (first embodiment) of the present invention. 7 and 8 are explanatory views showing a second embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows the environment of implementation of invention. The schematic explanatory drawing which shows the principal part (a relationship between a square axis, a handle | steering-wheel, and a fitting piece) from a perspective view. The schematic explanatory drawing which shows the principal part (relationship between a square axis, a handle | steering-wheel, and a fitting piece) from planar view. The schematic cross-section explanatory drawing of the cylindrical axial part of a handle. Schematic cross-sectional explanatory diagram at the time of connection (the handle is externally fitted to the square axis). Schematic cross-sectional explanatory diagram at the time of connection (fitting the fitting piece into the recess and fixing with a fastener). Explanatory drawing from the perspective of 2nd Example. Schematic cross-sectional explanatory drawing at the time of connection of the second embodiment.

Explanation of symbols

X ... 1 ... Opening / closing body, 2 ... Inner handle, 3 ... Outer handle, 4 ... Square shaft (bar-shaped body), 4a ... Insertion tip, 5 ... Neck portion (boss), 6 ... Cylindrical shaft 8 ... Shaft mounting hole, 10 ... Fixing tool (set screw), 10a ... Tip, 11 ... Recess, 12 ... Support wall in the recess, 13 ... Mounting hole in the support wall, 14 ... Insertion space on the recess side , 15 ... Square axis side connection hole (engagement hole, female screw), 16 ... engagement groove, 17 ... ridge line part, 21 ... fitting piece, 22 ... base plate part, 23 ... engagement end plate part, 24 ... Mounting holes for fitting pieces (screw holes, through holes).

Claims (2)

In a door handle fixing structure in which the handle and the square shaft are integrally connected via a fixing tool, when the handle and the square shaft are connected, the engagement end is engaged with an engagement groove formed on the square shaft. A fitting piece for preventing the angular shaft from coming off and having a plate portion having an L-shaped or U-shaped cross section and preventing the rotation of the angular shaft from rattling is fitted into a recess formed on the outer wall surface of the cylindrical shaft portion of the handle, and the fitting is performed. A fixing structure of a door handle, wherein the piece is fixed to a support wall in the recess via a fixing tool. The door handle fixing structure according to claim 1, wherein the handle and the square shaft are integrally connected via a fixing tool screwed from the fitting hole of the fitting piece to the connecting hole of the square shaft. .

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