JP2010144415A - Lock handle device for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock handle device for a door, the major portion of which can be made of a synthetic resin, while maintaining sufficient strength. <P>SOLUTION: This lock handle device 1 for the door includes a casing 2 which comprises a synthetic resin casing body 7 and a reinforcing metal fitting 8. The body 7 has a box-shaped portion 9 which is opened on the front side, and the box-shaped portion 9 is inserted into a rectangular opening P1 of a door panel P. The box-shaped portion 9 is equipped with side plates 11, 12, 13 and 14, and a bottom plate 15; and a handle storage space S is formed inside. A pivot 42 of the handle 3 is supported between side walls 11 and 12 of the box-shaped portion 9. The reinforcing fitting 8 is equipped with a base plate 22 which is arranged in such a manner as to continue into the bottom plate 15 of the box-shaped portion 9. The base plate 22 has a slit 24 which makes the driving protrusion 41 of a handle 3 penetrate to the backside. A pair of shaft bearing plates 23 of the base plate 22 supports the pivot 42 of the handle 3 together with the side plates 11 and 12. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a door lock handle device used in a switchboard storage box or the like.

A drive protrusion that protrudes from the handle to the back side of the casing when the casing is fixed to the door panel and the handle is mounted so as to rotate up and down relative to the casing. A lock handle device for a door that rotates and drives a latch plate is known (for example, see Patent Document 1). The handle is pivotally attached to the casing at the upper end side by a pivot and is urged to rotate in a standing direction by a spring. A stopper is pivotally attached to the casing adjacent to the lower end side of the handle in a prone state, and is urged to rotate in one direction by a spring. The stopper is normally engaged with the lower end side of the handle in the prone state to maintain the handle in the prone state, but if the stopper is rotated so as to be pushed into the casing against the spring force, Release to allow its upright rotation. A conventional lock handle device for a door of this type is entirely made of a metal such as a zinc alloy, an aluminum alloy, or stainless steel.
Japanese Patent Laid-Open No. P102833

The above-described conventional door lock handle device is entirely made of metal. On the other hand, the entire lock handle device is made of synthetic resin in order to meet the conditions of the installation location and the manufacturing cost. There is a request. If the whole is made of a synthetic resin, there are merits that it is easy to manufacture and can be provided at a relatively low cost, but there is a problem to be solved in terms of strength.
Accordingly, an object of the invention according to this application is to provide a door lock handle device in which a main part can be made of a synthetic resin while maintaining a sufficient strength.

In order to solve the above-described problem, a door lock handle device 1 according to the invention of this application includes a casing 2 having a main body 7 integrally formed of synthetic resin and a reinforcing metal fitting 8 fixed to the main body 7. . The main body 7 of the casing includes a box-shaped portion 9 that opens to the front side, and the box-shaped portion 9 is inserted into the rectangular opening P1 of the door panel P. The box-shaped portion 9 includes four side plates 11, 12, 13, 14 and a bottom plate 15, and forms a space S for accommodating the handle 3 in a lying state on the inside. The pivot 42 of the handle 3 is supported between the pair of side walls 11 and 12 of the box-shaped portion 9. The reinforcing metal fitting 8 includes a substrate 22 disposed so as to be continuous with the bottom plate 15 of the box-shaped portion 9. The substrate 22 has a slit 24 that allows the drive protrusion 41 of the handle 3 to freely pass through to the back side. A pair of parallel bearing plates 23 are provided so as to stand up from the board 22 into the handle storage space S, and the bearing plates 23 support the pivot shaft 42 of the handle 3 together with the pair of side plates 11 and 12.
Preferably, one end of the bottom plate 15 of the box-shaped portion 9 is terminated without reaching the side plate 13 disposed on one end side of the handle, whereby an open portion is formed between the side plate 13 and the reinforcing metal fitting. The substrate 22 is fitted and fixed to the opening.
Preferably, the side plate 13 disposed on one end side of the handle 3 has an engagement hole 13 a, and the engagement hole 13 a of the side plate 13 is formed at one end edge of the substrate 22 of the reinforcing bracket 8 corresponding to the side plate 13. An engaging protrusion 26 that snaps to the bottom plate 15 is formed, and an engaging protrusion 25 that is hooked on the front surface side of the one end edge of the bottom plate 15 is formed on the other end edge. Accordingly, the reinforcing metal fitting 8 is configured to be fitted and fixed to the casing body 7 by being pushed into the open portion from the back side of the casing 2.
Preferably, a screw hole 29 for screwing a pin 27 for pivotally supporting the latch plate 4 and a guide pin 28 for guiding the rotation of the latch plate 4 are screwed to the substrate 22 of the reinforcing metal fitting 8. And a screw hole 30 is formed.
The screw holes 29 and 30 can be formed so as to enter the bearing plate 23 from the back side of the substrate 22 of the reinforcing bracket 8.

According to the door lock handle device 1 of the invention according to this application, the main body 7 constituting the main part of the casing 2 while maintaining sufficient strength of the casing 2 and improving the ease of manufacture by the reinforcing metal fitting 8. Can be made of synthetic resin, and a door lock handle device corresponding to the conditions of the installation location and the manufacturing cost can be provided.
While the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to this.

  Embodiments of the present invention will be described with reference to the drawings. 1 is a front view of the lock handle device, FIG. 2 is a rear view of the lock handle device of FIG. 1, FIG. 3 is a side view of the lock handle device of FIG. 1, and FIG. 4 is a plan view of the lock handle device of FIG. 5 is a cross-sectional view of the lock handle device of FIG. 1 in a state where the handle is laid down, FIG. 6 is a cross-sectional view of the lock handle device of FIG. 1 in a standing state, and FIG. 7 is a front view of the lock handle device of FIG. 8 is an exploded perspective view of the back side of the casing in the lock handle device of FIG. 1, FIG. 9 is a front view of the reinforcing metal fitting in the lock handle device of FIG. ) Is a side view, FIG. 10 shows a handle in the lock handle device of FIG. 1, (a) is a plan view, (b) is a side view, (c) is a plan view, and FIG. 11 is a lock handle device of FIG. Shows part of the casing (A) is a front view, (b) is a sectional view, (c) is a rear view, FIG. 12 is an enlarged sectional view of a part of the lock handle device of FIG. 1, and FIG. 13 is a diagram of the lock handle device of FIG. FIG. 14 is an explanatory view of the case lock member.

  As shown in FIGS. 1 to 5, the lock handle device 1 includes a casing 2 fitted and fixed to the mounting opening P <b> 1 of the door panel P, and one end (the upper end in FIG. The same applies to the other members). The handle 3 is pivotally mounted on the side, and the latch is attached to the casing 2 so as to reciprocate between the locked position and the unlocked position in conjunction with the up-and-down rotation of the handle 3. A stopper 4 mounted on the casing 2 so as to reciprocate between a plate 4, a restraining position for restraining the handle 3 in a prone state, and a non-restraining position for allowing the handle 3 to stand up; and a stopper in the locked state The cylinder lock 6 is mounted on the casing 2 so as to lock the door by restraining the handle 3 in the overturned state regardless of the operation of 5.

  In the closed state, the door panel P is disposed on the outer side of the housing to which the door panel P is attached. The front panel P2 (left side surface in FIG. 5; hereinafter, the same applies to other members) and the rear surface on the opposite side (see FIG. 5, the right side surface (hereinafter, the same applies to other members) P <b> 3, and a substantially rectangular mounting opening P <b> 1 passes between the front surface P <b> 2 and the back surface P <b> 3.

  As shown in FIGS. 7 and 8, the casing 2 includes a main body 7 made of a synthetic resin, which forms a main part, and a reinforcing metal fitting 8 that is fitted and fixed to the main body 7. The casing body 7 includes a box-shaped portion 9 having a rectangular opening 9a that opens to the front surface side, and a flange plate 10 that extends around the opening 9a. The box-shaped part 9 is inserted into the rectangular mounting opening P1 of the door panel. The box-shaped portion 9 includes four side plates 11, 12, 13, and 14 erected at right angles from the flange plate 10 to the back side, and a bottom plate 15 that connects the left and right side plates 11 and 12. To do. In the space S surrounded by the side plates 11, 12, 13, 14 and the bottom plate 15, the handle 3 in a lying state is housed (FIG. 5), and in this state, the front surface of the handle 3 is substantially the same as the front surface of the flange plate 10. Become one. A lock receiving cylinder 16 is formed on the bottom plate 15 as a lock mounting portion for holding the cylinder lock 6. Case lock members 17 are formed above and below the left and right plates 11 and 12.

  The flange plate 10 has a rectangular frame shape surrounding the mounting opening P1 of the door panel P, and the back surface abuts on the front surface P2 around the mounting opening P1 of the door panel P (FIG. 5). The side plates 11, 12, 13, 14 of the box-shaped part 9 are arranged along the four inner sides of the mounting opening P <b> 1 of the door panel P.

  As shown in FIGS. 13 and 14, the case lock member 17 includes an elastic portion 18 that is curved upward or downward from the rear side corner edges of the upper and lower ends of the side plates 11 and 12, and a flange that is continuous with the elastic portion 18. An engaging portion 19 is provided that extends toward the back surface of the plate 10 and terminates at a predetermined interval from the back surface. The engaging portion 19 includes a plurality of step portions 19c having slopes 19a that gradually spread toward the back surface of the flange plate 10 and contact surfaces 19b that are different in distance from the back surface. The vertical dimension of the mounting opening P1 of the door panel P is formed to be smaller than the distance between the upper and lower ends of the upper and lower case lock members 17, and when the box-shaped portion 9 of the casing 2 is to be inserted into the mounting opening P1, The upper and lower edges of the mounting opening P <b> 1 are set so as to contact the inclined surface 19 a of the case lock member 17. Accordingly, when the casing 2 is pushed into the attachment opening P1 in this state, the engaging portion 19 of the case lock member 17 is pushed by the upper and lower edges of the attachment opening P1, thereby the elastic portion 18 is bent and the engaging portion 19 is attached. Passing through the opening P1 is allowed. Thereafter, the engagement portion 19 returns to the original position due to the elasticity of the elastic portion 18. At this time, depending on the thickness t1, t1, t3 of the door panel P, any one of the contact surfaces 19b contacts the back surface P3 of the upper and lower edges of the mounting opening P1, and the door panel P is placed between the flange plate 10 and the flange panel 10. The casing 2 is fixed to the door panel P by pinching.

  As shown in FIG. 11, the bottom plate 15 has a circular opening 20 penetrating between the front surface and the back surface, and the lock receiving cylinder 16 stands from the periphery of the opening 20 to the front surface side. The lock receiving cylinder 16 that is a lock attachment portion has a plurality of elastic engagement claws 16 a that protrude from the periphery of the opening 20 toward the center. As shown in FIG. 12, the elastic engagement claw 16a elastically engages with an engagement groove 34 on the outer periphery of the cylinder lock 6 inserted into the lock receiving cylinder 16 from the front side to prevent the cylinder lock 6 from coming off. . As shown in FIG. 8, the bottom plate 15 has upper and lower ends that do not reach the upper and lower plates 13 and 14, respectively, and the space S is open to the back side at this portion.

  As shown in FIG. 8, the reinforcing metal fitting 8 constituting a part of the casing 2 is fitted and fixed to the open portion above the bottom plate 15. As shown in FIGS. 8 and 9, the reinforcing bracket 8 includes a base plate 22 that continues to the upper end of the bottom plate 15 and reaches the upper plate 13, and a pair of left and right plates that stand up at right angles from the base plate 22 and extend along the inside of the left and right side plates 11 and 12. The bearing plate 23 is provided. A slit 24 extending in the vertical direction is formed in the center of the substrate 22 in the horizontal direction. An engagement protrusion 25 that engages with the inside of the upper end edge 15 a of the bottom plate 15 is formed on the lower end edge of the substrate 22, and an engagement protrusion 26 that snap-engages with the engagement hole 13 a of the upper plate 13 on the upper end edge. Is formed.

  Accordingly, the reinforcing metal fitting 8 can be easily fitted and fixed to the casing body 7 by being pushed in from the back side of the casing 2. That is, the lower end edge of the substrate 22 is joined to the upper end edge of the bottom plate 15, the lower engagement protrusion 25 is hung on the inner side, and the upper engagement protrusion 26 is applied to the edge of the upper plate 13. When the upper part is pushed to the front side, the reinforcing protrusion 8 rotates around the lower end edge of the substrate 22 while the engaging protrusion 26 elastically bends the upper plate 13 upwardly on the inclined surface 26a (FIG. 9b). At the position, the engagement protrusion 26 falls into the engagement hole 13a of the upper plate 13 and is prevented from coming off (FIGS. 5 and 6). The board 22 is formed with two screw holes 29 and 30 for screwing a pin 27 for pivotally supporting the latch plate 4 and a guide pin 28 for guiding the rotation of the latch plate 4. The screw holes 29 and 30 enter from the back surface of the substrate 22 into the bearing plate 23.

  As shown in FIGS. 5 and 12, the cylinder lock 6 is mounted so as to be prevented from coming off in the axial direction so as to be able to rotate forward and reverse by 90 ° around the axis with respect to the receiving cylinder 16. Normally, the disc tumbler 31 protrudes from the cylindrical case 32 and engages the casing receiving cylinder 16 and cannot rotate. However, when the disc tumbler 31 is pulled into the case 32 by inserting a key (not shown), 90 ° forward / reverse rotation with respect to the receiving tube 16 is possible. The case 32 has a locking protrusion 33 projecting in the radial direction and an annular engagement groove 34 on the outer periphery. The cylinder lock 6 is rotated forward and backward by 90 ° to switch between the locked position and the unlocked position. In the locking position, the locking protrusion 33 is engaged with the engaging portion 35 (FIG. 7) of the handle 3 in the prone position, thereby locking the handle 3. A part of the front surface of the cylinder lock 6 is exposed to the front side through the key insertion window 36 of the handle 3 in the prone position. Thus, the cylinder lock 6 can be unlocked or locked. On the front surface of the cylinder lock 6, two indicators 38 and 39 are formed at positions adjacent to the keyhole 37 and separated from each other by a rotation angle of 90 °. The indicators 38 and 39 are for displaying the locked state and the unlocked state of the cylinder lock 6, respectively.

  As shown in FIGS. 5, 6, and 10, the handle 3 has a synthetic resin main body 40 and a metal drive protrusion 41, and is pivotally supported on the casing 2 on the upper end side by a pivot 42. Specifically, the pivot 42 is supported by the left and right bearing plates 23 and the left and right side plates 11 and 12 of the reinforcing bracket 8.

  The handle body 40 can be rotated so as to stand up to the front surface P2 side of the door panel P or to fall down into the casing 2 around the pivot 42, and is urged to rotate in the standing direction by a spring 43. With the handle 3 lying down, the key insertion window 36 overlaps the cylinder lock 6 and exposes it to the front side. A display window 44 is formed in the handle 3 continuously to the edge of the insertion window 36. The display window 44 makes it possible to visually recognize whether the cylinder lock 6 is locked or unlocked by exposing the indicators 38 and 39 to the front side. Even if the cylinder lock 6 is in the unlocked state, the handle 3 does not stand up unless the stopper 5 is operated. , 39 can be visually recognized, so that locking and unlocking can be easily confirmed.

  As shown in FIGS. 5 and 6, the drive protrusion 41 freely penetrates the slit 24 of the reinforcing metal fitting 8 from one end side of the main body 40 and protrudes to the back side, and engages with the latch plate 4. The metal latch plate 4 is rotationally driven to the locked position or the unlocked position by the rotation of the driving protrusion 41 accompanying the up-and-down rotation of the handle body 40.

  The stopper 5 is made of synthetic resin and is pivotally supported between the side plates 11 and 12 of the casing 2 by the pivot 45 in the space S of the casing 2 adjacent to the lower end side of the handle 3 in the lying state, and is normally lying down. It engages with the tip of the handle 3 in the inverted position (FIG. 5) and is urged to rotate by a spring 46 so as to restrain it. When the stopper 5 in the restraining position is rotated so as to be pushed into the casing 2 from the front side of the handle with the fingertip (FIG. 6), the engagement with the handle 3 is released and the handle 3 is allowed to stand up.

  The drive protrusion 41 of the handle 3 is formed by punching a metal plate material, and is arranged so that the thickness direction thereof is parallel to the back surface of the handle. The drive protrusion 41 includes a stem portion 47, a protruding portion 48, and a shaft insertion portion 49. The drive protrusion 41 is insert-molded integrally with the handle body 40 made of synthetic resin. The stem portion 47 is buried in the handle main body 40, extends along the handle main body 40, and a part thereof protrudes from the back surface of the handle main body 40. The handle main body 40 has a rib 50 raised from the back surface of the handle main body 40 so as to bury the stem 47 of the drive protrusion. The protruding portion 48 extends from the one end side of the stem portion 47 at a predetermined angle and protrudes from the handle body 40. The shaft insertion portion 49 is located between the stem portion 47 and the protruding portion 48, has a shaft hole 51 that penetrates the pivot 42, and is buried in the bearing holding portion 52 that bulges at right angles from the back surface of the handle body. .

  In the undulation rotation operation of the handle 3, the shaft insertion portion 49 of the handle 3 to which a relatively large impact or load is applied, the bearing plate 23 of the casing 2, the base plate 22 that supports this, and the drive protrusion 41 that lifts the latch plate 4 are all made of metal. Therefore, the lock handle device 1 can be configured robustly.

It is a front view of a lock handle device. It is a rear view of the lock handle apparatus of FIG. It is a side view of the lock handle apparatus of FIG. It is a top view of the lock handle apparatus of FIG. It is sectional drawing of the state which laid down the handle | steering-wheel of the lock handle apparatus of FIG. It is sectional drawing of the state which stood the handle of the lock handle apparatus of FIG. It is a disassembled perspective view of the front side of the lock handle apparatus of FIG. It is a disassembled perspective view of the back side of the casing in the lock handle apparatus of FIG. The reinforcement metal fitting in the lock handle apparatus of FIG. 1 is shown, (a) is a front view, (b) is a side view. 1A and 1B show a handle in the lock handle device of FIG. 1, wherein FIG. 1A is a plan view, FIG. 1B is a side view, and FIG. FIG. 2A is a front view, FIG. 1B is a cross-sectional view, and FIG. FIG. 2 is an enlarged cross-sectional view of a part of the lock handle device of FIG. 1. FIG. 3 is an enlarged side view of a case lock member in the lock handle device of FIG. 1. It is explanatory drawing of the case lock member in the lock handle apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lock handle apparatus 2 Casing 3 Handle 4 Latch plate 5 Stopper 6 Cylinder lock 7 Casing main body 8 Reinforcing bracket 9 Box-shaped part 9a Opening 10 Flange plate 11 Left side plate 12 Right side plate 13 Upper side plate 14 Lower side plate 15 Bottom plate 16 Receptacle cylinder 17 Case Lock member 18 Elastic part 19 Engagement part 19a Slope 19b Contact surface 19c Step part 20 Circular opening 22 Substrate 23 Bearing plate 24 Slit 25 Engagement protrusion 26 Engagement protrusion 27 Pivot pin 28 Guide pin 29 Screw hole 30 Screw hole 31 Disk Tumbler 31 Main body 32 Cylindrical case 33 Locking protrusion 34 Engaging groove 35 Engaging portion 36 Key insertion window 37 Key hole 38 Indicator 39 Indicator 40 Handle main body 41 Driving protrusion 42 Axis 43 Spring 44 Display window 45 Axis 46 Spring 47 Stem 48 Projection 49 Shaft Insertion 50 Rib 51 Shaft Hole 52 Bearing Holding P door panel P1 opening P2 front P3 back S handle the storage space

Claims (5)

A casing that fits and is secured to a substantially rectangular opening in a door panel having a front surface and a back surface on the opposite side;
A handle that is pivotally supported by a pivot on one end side, extends to the other end, can be rotated up and down to the front side of the door around the pivot, and is urged to rotate in a standing direction by a spring;
A latch plate mounted on the back side of the casing so as to reciprocate between a locked position and an unlocked position in conjunction with the undulation rotation of the handle;
Adjacent to the other end of the handle in the prone state, the casing is freely movable between a constraining position for constraining the handle in a prone state and a non-restraining position for allowing the handle to rotate upright. Comprises a stopper biased to be in the restrained position,
The handle includes a drive protrusion that protrudes toward the back side of the casing and engages with the latch plate on one end side, and is used for a door that rotationally drives the latch plate by the rotation of the drive protrusion according to the undulation rotation of the handle. In the lock handle device,
The casing includes a main body integrally formed with a synthetic resin, and a reinforcing metal fitting fixed to the main body.
The casing body comprises a box-like portion inserted into a rectangular opening of the door panel,
This box-shaped part has four side plates and a bottom plate, and opens to the front side to form a space for storing the handle inside,
The pivot of the handle is supported between a pair of side walls facing each other in parallel with the box-shaped portion,
The reinforcing metal fitting has a slit that freely penetrates the drive protrusion of the handle to the back side, and is arranged so as to be continuous with the bottom plate of the box-shaped portion, and rises from the substrate into the handle storage space. And a pair of parallel bearing plates arranged parallel to the pair of side plates and supporting the pivot shaft together with the side plates. The bottom plate is terminated at one end side without reaching the side plate disposed on one end side of the handle, so that an open portion is formed between the bottom plate and the side plate,
The door lock handle device according to claim 1, wherein the substrate of the reinforcing metal fitting is fitted and fixed to the opening portion. The side plate disposed at one end of the handle has an engagement hole,
An engagement protrusion that snaps into an engagement hole of the side plate is formed at one end edge of the substrate of the reinforcing metal fitting, corresponding to a side plate arranged at one end side of the handle, and at the other end edge, An engagement protrusion is formed on the front side of one end edge of the bottom plate,
3. The door lock handle device according to claim 2, wherein the reinforcing metal fitting is configured to be fitted into and fixed to the casing body by being pushed into the opening from the back side of the casing.   The reinforcing metal plate has a screw hole for screwing a pin for pivotally supporting the latch plate and a screw hole for screwing a guide pin for guiding the rotation of the latch plate. The door lock handle device according to claim 1 or 2.   5. The door lock handle device according to claim 4, wherein the screw hole of the reinforcing metal fitting is formed so as to enter the bearing plate from the back side of the substrate.

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