JP5330959B2 - Latch lock operation handle mechanism - Google Patents

Description

  The present invention relates to an operation handle mechanism for unlocking a latch lock attached to a door, and more particularly to a push-pull type operation handle mechanism that can be retrofitted to a so-called lever handle type latch lock.

  A so-called lever handle or push-pull handle is widely used as a latch lock in which a latch bolt protruding in a biased state from the lock surface of the door is retracted by a handle operation to open the door.

  In the case of a lever handle type latch lock, generally, a latch operating rod is provided so as to pass through the door perpendicular to the door, and a handle is attached to both ends of the latch operating rod. When the lever is rotated so as to be pushed down several tens of degrees, the latch operating rod also rotates around the axis and the latch bolt moves backward.

  On the other hand, in the push-pull type latch lock, the handle mounting shaft is provided a little away from the door surface and in parallel with the door. By pushing or pulling the handle attached to this mounting shaft in the door opening / closing direction, the latch bolt Retreats. The natural operation is that the handle is pulled from the side that pulls the door open and the handle is pushed from the side that pushes the door open. For example, you can easily open the door even when you have luggage in both hands or hold a child. Since the handle can be pushed with the shoulder and the fingertip can be hooked on the handle, it is easy to handle even for children and elderly people with weak grip. Moreover, since it is easy to put weight on a door, it is suitable also for the heavy-duty large-sized door which has been increasing in condominiums in recent years.

  Under such circumstances, there is a demand for replacing the latch lock with a push-pull handle type without changing the door body in the existing door to which the lever handle type latch lock is originally attached. However, in a conventional latch lock, the lock case (lock body) incorporated in the door and the handle are mechanically integrated, so the lock case must be replaced together with the handle. It was an economy and the construction was troublesome. Therefore, for example, Patent Document 1 proposes an operation handle mechanism of a latch lock configured such that an existing lock case incorporated in a door can be used as it is and only a handle can be replaced from a lever handle to a push-pull handle. ing.

  11 to 12 show an outline of the operation handle mechanism described in Patent Document 1. FIG. The latch lock 1 provided on the door D has an internal mechanism similar to that of a conventional lever handle type latch lock, and is a square bar-shaped latch operation rod inserted into a square hole of a latch operation cam (not shown). The latch bolt 12 is configured to be retracted by rotating 11 around its axis. Since the rotation operation of the latch operation rod 11 in a general lever handle type latch lock is performed by rotating the handle engaged with both ends of the latch operation rod 11 in a plane parallel to the door D, The operation direction of the handle and the rotation direction of the latch operating rod 11 are the same. However, in the illustrated operation handle mechanism, a special conversion mechanism is interposed between the handle and the latch operating rod 11 so that the latch lock 1 can be operated with the push-pull handle.

  The conversion mechanism includes a handle main body 2, an attachment member 3 for attaching the handle main body 2 to the door D, an eaves rotation member 4 interposed between the handle main body 2 and the attachment member 3, and the like. The attachment member 3 is a member having a U-shape in a side view, and an attachment substrate 31 located on the back side thereof is screwed to the door D. A circular hole 32 into which the latch operating rod 11 can be loosely inserted is provided in the center of the mounting substrate 31. Between the upper and lower opposing plates 33, 33 of the mounting member 3, a vertical rotation shaft 34 is provided in parallel with the door surface. The handle main body 2 is pivotally attached to the rotation shaft 34 and is held so that the end portion on the suspension base side can be rotated in the push-pull direction. On the surface of the handle main body 2 facing the door D, a drive unit 21 having two engaging claws 22 and 23 parallel to the tip is projected toward the door D.

  The eaves rotation member 4 is a metal plate member and is superimposed on the surface of the mounting member 3. The collar turning member 4 engages with the end of the latch operating collar 11 through a square hole formed at the center thereof. At one end portion of the heel turning member 4, there are provided turning operation portions 41 and 42 that are bent in an approximately eight shape in front view. Engagement claws 22 and 23 projecting from the handle body 2 side engage with these rotation operation portions 41 and 42. Further, the eaves rotation member 4 is formed with an arc-shaped elongated hole 43 on the side opposite to the rotation operation portions 41 and 42 with the latch operation rod 11 interposed therebetween. The arc-shaped elongated hole 43 is engaged with a rotation restricting member 35 formed of a headed pin fixed to the mounting member 3 with a screw.

  According to such a configuration, the drive unit 21 provided integrally with the handle body 2 is also rotated in response to a push / pull operation of the handle, that is, an operation of rotating the handle body 2 around the rotation shaft 34 in the vertical direction. It rotates in the left-right direction around the moving shaft 34. By the rotation of the drive unit 21, the engaging claws 22 and 23 provided at the tip of the drive unit 21 push and move the rotation operation units 41 and 42 of the rod rotation member 4 in the left-right direction, and the rod rotation member 4 is moved. Rotate in a plane parallel to door D. As a result, the latch operating rod 11 engaged with the rod rotating member 4 also rotates around the axis, and the latch is unlocked. By changing the engagement state of the drive unit 21 and the saddle turning member 4 according to the operation direction of pushing or pulling the handle, this mechanism is arranged on the indoor side (usually the handle pushing side) and the outdoor side (usually the handle pushing side). Usually, it can be used on either side of the handle).

JP-A-11-293970

  In the operation handle mechanism of the latch lock described in Patent Document 1, when the handle is pushed and pulled, the rotation angle of the handle body 2 around the rotation shaft 34 remains as it is around the rotation shaft 34. It becomes the rotation angle of the drive part 21 to do. The swing distance of the engagement claws 22 and 23 is defined according to the rotation angle of the drive unit 21 and the dimensions from the rotation shaft 34 to the engagement claws 22 and 23 provided at the tip of the drive unit 21. The The pivoting angle of the hook rotating member 4 is defined by the swing distance of the engaging claws 22 and 23 and the dimension from the rotating operation parts 41 and 42 engaged therewith to the axis of the latch operating rod 11, That is, this also becomes the rotation angle of the latch operating rod 11.

  That is, in order to rotate the latch operation rod 11 by a predetermined angle, the engagement positions of the rotation operation portions 41 and 42 of the rod rotation member 4 and the engagement claws 22 and 23 of the drive portion 21 are set as follows. It is necessary to push and move it left and right by a predetermined distance. For that purpose, the dimension from the pivot shaft 34 to the engaging claws 22 and 23 at the tip of the drive unit 21 is ensured to a considerable extent, and the handle body 2 must also be pivoted by a considerable angle or more by a push-pull operation. I must.

  In order to smoothly operate the aforementioned operating handle mechanism with an unreasonable force due to such a mechanism, the rotating shaft 34 for holding the handle body 2 is provided as far as possible from the surface of the door D and the latch. The rotation angle of the handle body 2 necessary for unlocking must be set larger. Therefore, the structure around the handle is particularly bulky in the thickness direction of the door D, which tends to be an obstacle when the door D is opened and closed and when entering and exiting.

  The present invention has been made in view of the above-described circumstances, and can reduce the protruding dimension from the surface of the door so that the periphery of the mechanism can be stored compactly, and the operation angle of the handle required for unlocking the latch can be reduced. Provided is an operation handle mechanism for a latch lock that can be operated smoothly with a reasonable force even if it is smaller than the conventional one.

  The operation handle mechanism of the latch lock according to the present invention has a lock case attached to the door, and the lock case is provided with a latch operation rod orthogonal to the door surface, and is latched by rotating the latch operation rod around an axis. This is an operation handle mechanism of a latch lock in which a bolt is retracted and unlocked.

  And as a 1st structure for achieving the said objective, the bearing seat attached to a door surface, the collar rotating member connected with the edge part of the said latch operating rod, and the composite attached by overlapping on the said bearing seat A bearing, a handle rotating seat that is rotatably attached to the composite bearing via a handle shaft attachment pin, and a rocker that is rotatably attached to the composite bearing via a rocker shaft attachment pin; A handle main body coupled to the handle rotating seat, and the hook rotating member is held between the bearing seat and the composite bearing so as to be able to rotate integrally with the latch operating lever. The composite bearing includes a handle bearing pin, a pivot bearing pin, a guide pin that engages with an arc-shaped elongated hole formed in the complex bearing, and regulates the pivoting range of the steering pivot and the pivot. However, the center pin of the pivot shaft The pins are mounted in parallel with each other and so that all pins are parallel to the door surface. The push-pull operation of the handle body causes the handle pivot seat to pivot about the handle pivot pin. The rocker is held so as to rotate at a rotation angle larger than the rotation angle of the handle rotation seat around the rocker shaft mounting pin, and the rocker faces the door side. The arm pin protrudes and the tip of the arm pin engages with the pin engaging groove formed in the heel rotating member, and the arm pin pushes the pin engaging groove of the heel rotating member by the rotation of the swinging member. It is characterized by moving and rotating the rod-rotating member and the latch operating rod connected to the rod-rotating member around the axis.

  In addition, as a second configuration for achieving the above object, a bearing seat attached to the door surface, a saddle turning member connected to an end portion of the latch operating rod, and a composite attached to overlap the bearing seat A bearing, a handle rotating seat that is rotatably attached to the composite bearing via a handle shaft attachment pin, and a rocker that is rotatably attached to the composite bearing via a rocker shaft attachment pin; A handle main body coupled to the handle rotating seat, and the hook rotating member is held between the bearing seat and the composite bearing so as to be able to rotate integrally with the latch operating lever. The composite bearing includes a handle bearing pin, a pivot bearing pin, a guide pin that engages with an arc-shaped elongated hole formed in the complex bearing, and regulates the pivoting range of the steering pivot and the pivot. However, both pins are flat with the door surface. So that the distance between the pivot pin and the guide pin is smaller than the distance between the handle pin and the guide pin, and the handle is rotated by pushing and pulling the handle body. The seat pivots about the handle pivot pin, and the pivot pivots at a pivot angle greater than the pivot angle of the handle pivot seat about the pivot pin. An arm pin protruding from the door toward the door, and the tip of the arm pin engages with a pin engaging groove formed in the heel rotation member, so that the rotation of the oscillator Thus, the arm pin pushes and moves the pin engaging groove of the heel rotation member, and the heel rotation member and the latch operation rod connected to the heel rotation member rotate about the axis.

  Furthermore, in the operation handle mechanism of the latch lock according to the first and second configurations, the scissors rotating member is housed in a dish-shaped recess formed in the bearing seat, and between the dish-shaped recess. It is biased in the unlocking direction via the hooked spring member.

  As a more specific configuration, the bearing seat has a base portion and a bearing press piece portion extending forward from the upper and lower portions thereof, and a handle is provided on an opposing surface of the upper and lower bearing press piece portions. Three groove portions for holding the upper and lower end portions of the shaft attachment pin, the oscillator shaft attachment pin, and the guide pin are formed, respectively. The composite bearing has a back plate portion and a front portion from an upper portion and a lower portion thereof. And the upper and lower pin shaft support pieces are held between upper and lower bearing presser pieces provided on the bearing seat, and the upper and lower pin shaft support pieces are The part is formed with two circular shaft holes through which the handle shaft attaching pin and the oscillator shaft attaching pin are inserted, and an arc-shaped elongated hole for guiding the guide pin, The upper and lower shaft-passing parts and the left and right side wall parts form a shape that surrounds the recess opening on the door side, and the upper and lower shafts Is held between the upper and lower pin shaft support pieces provided on the composite bearing, and the upper and lower shaft passing portions are provided with two circular shaft holes through which the handle shaft attaching pin and the guide pin are inserted, and the swing shaft. A U-shaped notch for avoiding interference with the moving shaft pin may be formed.

  The oscillator may be housed and rotated in an upper position or a lower position in a recess formed in the handle rotation seat.

  Further, a spring member for urging the handle main body in the return direction may be attached to the handle shaft attaching pin.

  Further, a long hole through which the arm pin of the oscillator can be inserted is formed in the back plate portion of the composite bearing.

  Also, mounting seats are applied to both the indoor and outdoor sides of the door, both the mounting seats are connected to each other via a connecting member that penetrates the door, and the bearing seat and the composite bearing are attached to the mounting seats. can do.

  The operation handle mechanism of the latch lock of the present invention configured as described above is configured such that the handle rotating seat is rotatably attached to the composite bearing attached to the door via the bearing seat via the handle shaft attaching pin. The oscillator is pivotably attached via an oscillator pin that is different from the handle pivot pin, and the handle pivot seat and the pivot rotate by pushing and pulling the handle body. The arm pin protruding from the oscillator engages with the heel rotation member to rotate the heel rotation member and the latch operation rod connected to the heel rotation member about the axis. By setting the pivot radius of the oscillator smaller than the pivot radius of the handle pivot seat, the pivot angle of the oscillator is increased more than the pivot angle of the handle pivot seat so that the handle can be operated with a small handle. The latch can be unlocked. It is. Therefore, the handle operating angle required for unlocking the latch can be reduced, the handle can be easily pushed and pulled, and the overall structure of the mechanism can be made compact.

  Since this operation handle mechanism is configured to move a member to be engaged on the principle of the lever, if the entire mechanism becomes compact, the force required for the operation may increase, but it is connected to the latch operation lever. The force required for the operation can be reduced by supplementarily applying a turning biasing force in the unlocking direction to the eaves turning member via the spring member.

  Therefore, by adopting this operation handle mechanism, it is possible to obtain a latch lock that is easy for an elderly person, a child, a person holding a baggage in both hands, or a person holding a child to easily open and enter and exit. . Further, when a lever handle type latch lock is attached to an existing door, it is possible to easily replace only the handle with a push-pull handle without changing the lock case.

  Further, the operation handle mechanism of the latch lock according to the present invention is composed mainly of a bearing seat, a saddle turning member, a composite bearing, three types of pins, a handle turning seat, a swing member, etc. The members can be rationally assembled by sharing the members indoors and outdoors.

It is a disassembled perspective view which shows schematic structure of the operation handle mechanism which concerns on embodiment of this invention. It is a principal part longitudinal cross-sectional view of the said operation handle mechanism. It is a principal part cross-sectional view in the locked state of the said operation handle mechanism. It is a principal part cross-sectional view in the unlocking state of the said operation handle mechanism. It is the disassembled perspective view which decomposed | disassembled the outdoor main part of the said operation handle mechanism completely. FIG. 3 is an exploded perspective view in which a part of the outdoor side of the operation handle mechanism is partially assembled. It is explanatory drawing which shows the operation | movement state seeing the outdoor side principal part of the said operation handle mechanism from the front side, (a) is the front of the state in which the bearing seat, the rod rotation member, and the spring member were assembled | attached to the attachment seat. FIG. 4B is a front view of the unlocking operation. It is explanatory drawing which shows the action principle of the said operation handle mechanism from the upper side. It is the disassembled perspective view which assembled | attached some indoor side principal parts of the said operation handle mechanism. It is explanatory drawing which shows the operation state seeing the indoor side principal part of the said operation handle mechanism from the front side, (a) is the front of the state in which the bearing seat, the rod rotation member, and the spring member were assembled | attached to the attachment seat. FIG. 4B is a front view of the unlocking operation. FIG. 6 is a top plan view of a main part of an operation handle mechanism described in Patent Document 1. FIG. 10 is a front view of a main part of an operation handle mechanism described in Patent Document 1.

  1 to 10 show an embodiment of an operation handle mechanism of a latch lock according to the present invention. The latch lock 10 incorporated in the door D has an internal mechanism similar to that of a conventional general lever handle type latch lock. The latch bolt 12 protrudes from the lock surface by biasing means such as a spring built in the lock case 13. A rectangular bar-shaped latch operation rod 11 is inserted into the lock case 13, and both end portions thereof protrude from both the indoor and outdoor sides of the door D. By rotating the latch operation rod 11 around the axis, the latch bolt 12 is retracted. To do.

  The main components of the operation handle mechanism are a mounting seat 50 that is applied to both the indoor and outdoor surfaces of the door D with the door D in between, and a bearing seat 60 that is attached to the indoor and outdoor surfaces of the door D via the mounting seat 50. , A rod rotating member 40 connected to both ends of the latch operating rod 11, a composite bearing 70 attached to each of the indoor and outdoor bearing seats 60, and an indoor and outdoor composite bearing 70 via a handle shaft attachment pin, respectively. A handle rotating seat 80 that is pivotably attached, a rocker 90 that is pivotally attached to the indoor and outdoor composite bearings 70 via a pivot pin, and a room that is coupled to each handle pivot seat 80. The outer handle body 20, the cover 110 to be mounted on those members, and the like.

  The mounting seat 50 includes a seat bottom plate 51 having a substantially circular shape when viewed from the front, and a rib 52 formed on the periphery thereof. A circular hole 53 into which the latch operating rod 11 can be loosely inserted is formed at the center of the seat bottom plate 51. Is formed. The indoor and outdoor mounting seats 50 and 50 are connected to each other via a connecting member that penetrates the door D. The connecting member is configured by combining a pair of long and short countersunk screws 54 and 55 and a connecting sleeve 56 having a female screw formed inside. The countersunk screws 54 and 55 are inserted into the countersunk plate 51 at two locations from the front side of the bottom plate 51 so as to sandwich the circular hole 53 of the mounting seat 50. As shown in FIGS. 1 and 3, a short countersunk screw 55 is inserted into the outdoor mounting seat 50, and a connecting sleeve 56 is screwed in advance thereto. The connecting sleeve 56 is inserted into the door D from the outdoor side, and a long countersunk screw 54 inserted into the indoor mounting seat 50 is screwed to the front end of the connecting sleeve 56 to thereby attach the indoor mounting seat 50 to the outside. , 50 are fixed to the door D in a state where they are attracted to each other.

  A bearing seat 60, a composite bearing 70, and the like are attached to both the indoor and outdoor surfaces of the door D via the mounting seat 50. In the illustrated embodiment, the latch is unlocked by pulling the handle on the outdoor side and pushing the handle on the indoor side. Although the movement of the main part of the mechanism with respect to the unlocking operation is symmetric inside and outside the room, the mechanical mechanism for converting the pushing and pulling of the handle into the rotation of the latch operating rod 11 is common to the inside and outside of the room. For security reasons, the order and direction when screws are assembled to the door D with screws are slightly different inside and outside the building. Except for this, most of the components can be shared indoors and outdoors. Is done. Therefore, in the following description, the description will be focused on the configuration of the outdoor side where the latch is unlocked by pulling the handle with reference to FIGS.

  The bearing seat 60 is a substantially U-shaped member in a side view as shown in FIGS. 5 to 6, and a base portion 61 having a substantially circular shape in a front view, and an upper surface extending forward (handle side) from the upper and lower portions thereof. The bearing pressing pieces 62 and 62 have a substantially rectangular shape and a generally arcuate shape when viewed from the front. The outer diameter of the base portion 61 is a size that fits within the rib 52 of the mounting seat 50. The bottom surface of the base portion 61 is substantially flat, and a dish-shaped concave portion 63 having a substantially circular shape when viewed from the front is formed on the front surface. In the center of the dish-shaped recess 63, a circular hole 64 for inserting the shaft portion 41 of the rod rotating member 40 is formed. Long holes 65, 65 extending in the lateral direction are formed above and below the circular hole 64, and an arm pin 94 of an oscillator 90, which will be described later, is inserted into one of them. Further, on the peripheral edge of the dish-shaped concave portion 63, the hooking grooves 66 extending outward are dug in two places obliquely upward and diagonally downward when viewed from the front of the outdoor side. One end of a spring member 120 to be described later is hooked on one of them.

  A countersunk hole 67 through which a countersunk screw 301 for connecting the bearing seat 60 and the composite bearing 70 is inserted from the back side of the base part 61 is provided at two positions on the base part 61 on the left and right sides outside the dish-shaped recess 63. Is formed. Further, a small screw 302 (outside) or a small screw 303 (inside of the room) for connecting the bearing seat 60 and the composite bearing 70 together to the mounting seat 50 are inserted into the upper and lower portions of the countersink 67. A counterbore 68 is formed for the purpose (see FIGS. 1 and 3).

  The upper and lower bearing retainer pieces 62, 62 have flat inner surfaces facing each other, and three upper and lower grooves 69 are formed on the inner surfaces. Each groove part 69 has substantially the same width (strictly, only the central groove part 69 is slightly narrow), extends substantially the same depth in the front-rear direction, opens to the front side of the bearing retainer piece part 62, and the upper and lower groove parts 69. They are also formed so as to face each other.

  As shown in FIGS. 5 to 6, the eaves rotation member 40 includes a shaft portion 44 having a cylindrical outer shape and a rotation plate 45 projecting outward from the front end of the shaft portion 44. A square hole 46 is formed in the shaft portion 44, and the end of the latch operation rod 11 is fitted into the square hole 46, whereby the rod rotation member 40 rotates integrally with the latch operation rod 11. For the convenience of the assembly procedure, the latch operating rod 11 is inserted in advance into the shaft portion 44 of the outdoor rod rotating member 40 and is prevented from being detached from the shaft portion 44 by a spring pin 47 inserted from the side of the shaft portion 44. The The rear end of the shaft portion 44 is inserted into a circular hole 64 formed in the dish-like recess 63 of the bearing seat 60 and is held rotatably.

  The rotating plate 45 has a disk shape that is one or two times smaller in diameter than the inner diameter of the dish-shaped recess 63 formed in the bearing seat 60, and the thickness is slightly thinner than the depth of the dish-shaped recess 63. And concentrically accommodated in the dish-shaped recess 63. In the vicinity of the shaft portion 44 of the rotating plate 45, a thickened portion 48 (see FIGS. 3 and 5) is formed on both the front and back surfaces, and the thickness of the thickened portion 48 is a dish-shaped concave portion. It almost matches the depth of 63.

  The rotary plate 45 is formed with two notched grooves 49, 49 that are substantially U-shaped in front view. The two notch grooves 49, 49 are arranged so that the central angle is about 120 ° to 150 ° apart when viewed from the front. The two notch grooves 49, 49 have the same shape, one is a pin engaging groove for engaging the tip of an arm pin 94 projecting from the oscillator 90, and the other is one end of a spring member 120 described later. Used as a spring engaging groove for hooking. The positional relationship between the pin engagement groove and the spring engagement groove is opposite to each other on the outdoor side and the indoor side.

  The spring member 120 is formed by winding a spring steel wire several times into a coil having a size that fits in the dish-like recess 63 of the bearing seat 60, and resists a torsional moment acting around the axis of the coil. An inward arm 121 is provided at one end of the coil, and an outward arm 122 is provided at the other end.杆 The rotating member 40 is set in the dish-like recess 63 of the bearing seat 60 as shown in FIG. 7A when viewed from the front of the outdoor side, and the spring member 120 surrounds the rotating plate 45 so as to be dish-shaped. It fits in the recess 63. Then, the outward arm 122 is hooked in the lower right hooking groove 66 shown in the figure in the bearing seat 60, and the inward arm 121 is located in the notch groove 49 (below the rotary plate 45). Spring engagement groove). In this state, the spring member 120 urges the rotation plate 45 to compensate for the force when the rotation plate 45 rotates in the unlocking direction (clockwise in the drawing).

  As shown in FIGS. 5 to 6, the composite bearing 70 is a member obtained by bending a metal plate into a substantially U shape in a side view, and a back plate portion 71 having a front shape obtained by cutting the upper and lower sides of a circle into a substantially arcuate shape, Pin shaft support pieces 72, 72 extending forward from the upper part and the lower part, respectively. The back plate portion 71 is overlapped with the base portion 61 of the bearing seat 60 to close the front opening of the dish-shaped recess 63 formed in the base portion 61, and the upper and lower pin shaft support pieces 72, 72 are formed on the bearing seat 60. It is just held between the bearing retainer pieces 62 and 62.

  A circular hole 73 is formed at the center of the back plate portion 71, and the front end of the shaft portion 44 of the collar rotating member 40 is rotatably held in the circular hole 73. Long holes 74, 74 extending in the lateral direction are formed above and below the circular hole 73, and the arm pin 94 of the oscillator 90 is loosely inserted into one of them. On the sides of the upper and lower elongated holes 74, 74, a notch 75 for hooking a spring member 130 described later is formed.

  Female screw portions 76 are formed at two side portions of the back plate portion 71, and countersunk screws 301 inserted into the countersunk holes 67 from the back side of the bearing seat 60 are screwed into the female screw portions 76, thereby bearing seats. 60 and the composite bearing 70 are combined. Further, at two locations on the upper and lower sides of the female screw portion 76, female screw holes 77 (outdoors: see FIG. 6) for connecting the composite bearing 70 and the bearing seat 60 to the mounting seat 50 with a small screw 302, Alternatively, a through-hole 78 (indoor side: see FIG. 9) for inserting the small screw 303 is formed.

  The upper and lower pin shaft support pieces 72 have two circular shaft holes 701 and 702 through which the handle shaft attaching pin 101 and the oscillator shaft attaching pin 102 are inserted, respectively, and arc-shaped elongated holes for guiding the guide pin 103. 703 are formed so as to face each other vertically. The handle shaft attaching pin 101, the oscillator shaft attaching pin 102, and the guide pin 103 are all straight rod bodies having the same diameter and the same size, and each of the holes 701 formed in the upper and lower pin shaft supporting pieces 72, 72, 702 and 703 are respectively inserted and held vertically at almost equal intervals. In the illustrated embodiment, the pivot shaft mounting pin 102 is located in the center circular shaft hole 702 when viewed from the front, the handle shaft mounting pin 101 is located in the circular shaft hole 701 on the right side (the suspension side of the door D), and the left side (the door D is on the door D). A guide pin 103 is disposed in an arc-shaped long hole 703 on the door end side.

  The handle shaft attaching pin 101, the oscillator shaft attaching pin 102, and the guide pin 103 are formed such that the upper end portion and the lower end portion thereof protrude slightly from the upper and lower pin shaft support pieces 72, 72, respectively. The composite bearing 70 to which the pins 101, 102, 103 are mounted is inserted between the bearing pressing pieces 62, 62 of the bearing seat 60 from the front side, so that the bearing holding pieces 62, 62 The upper and lower ends of the pins 101, 102, and 103 are sandwiched in the grooves 69 formed on the inner surface, and are restrained so as not to come out.

  The handle rotation seat 80 includes a front portion 81 having a substantially rectangular shape when viewed from the front, shaft passing portions 82 and 82 extending rearward from the upper and lower sides (door D side), and extending rearward from the left and right of the front portion 81. The side walls 83 and 83 are formed so that they surround the four circumferences of the recesses that are opened rearward. The upper and lower shaft-passing portions 82 and 82 are flat, and the left and right side wall portions 83 and 83 have a substantially cylindrical outer surface that bulges outward. At the center of the front portion 81, a square-bar-shaped handle mounting rod 84 is provided protruding forward. The handle body 20 is mounted on the handle rotating seat 80 so that the mounting hole 24 formed in the base end portion is inserted into the handle mounting rod 84, and the retaining screw 25 is fastened from the side surface of the base end portion. By doing so, it is coupled to the handle rotation seat 80.

  The upper and lower shaft passing portions 82 and 82 are formed with two left and right circular shaft holes 801 and 803 and one U-shaped notch 802 that opens rearward in the center portion so as to face each other vertically. ing. The upper and lower shaft passing portions 82 and 82 are held between the upper and lower pin shaft support pieces 72 and 72 provided on the composite bearing 70, and are located on the right side (the suspending side of the door D) when viewed from the front. The handle shaft attaching pin 101 is inserted into the circular shaft hole 801, and the guide pin 103 is inserted into the circular shaft hole 803 on the left side (door end side of the door D). (FIG. 6 shows a state in which the guide pin 103 is not inserted into the circular shaft hole 803 on the left side of the handle rotating seat 80 in order to make the inner shape of the handle rotating seat 80 easier to see. Thereby, the handle rotation seat 80 is held so that the left side can be rotated in the front-rear direction with the right handle shaft attachment pin 101 as a support shaft with respect to the composite bearing 70. The rotation angle of the handle rotation seat 80 is defined by the movable range of the guide pin 103, that is, the length of the arc-shaped elongated hole 703 formed in the pin shaft support piece 72 of the composite bearing 70. The angle is set to approximately 15 ° (see FIG. 8), and this angle becomes the unlocking operation angle of the handle. At this time, the U-shaped notch 802 formed at the center of the shaft-passing portion 82 serves to prevent the shaft-passing portion 82 from interfering with the center pivot shaft pin 102.

  In the concave portion of the handle rotation seat 80, upper and lower two-stage partitioning portions 85, 85 are formed, whereby the concave portion is divided into three in the vertical direction. In each of the partition portions 85 and 85, three U-shaped notches 86 that are opened rearward are formed in accordance with the positions of the pins 101, 102, and 103. All of these U-shaped notches 86 also serve to prevent the partitions 85 and 85 from interfering with the pins 101, 102, and 103.

  The oscillator 90 is a member obtained by bending a metal plate into a substantially U shape when viewed from the side, and is a substantially rectangular middle plate portion 91 when viewed from the front, and pin insertion pieces extending forward from the upper and lower portions thereof. 92, 92. The front edge corner portion of the pin insertion piece portion 92 is processed into a rounded shape. A circular shaft hole 902 is formed on the right side (the suspending side of the door D) of the upper and lower pin insertion pieces 92, 92 when viewed from the front, and the oscillator shaft mounting pin 102 is inserted therethrough. In addition, a free hole 903 slightly larger than the right circular shaft hole 902 is formed on the left side (door tip side of the door D) when viewed from the front in each pin insertion piece portion 92, 92. The guide pin 103 is inserted through with some play. On the outdoor side, the oscillator 90 is assembled so as to be accommodated in an upper position within a recess defined by the partitioning portions 85, 85 of the handle rotation seat 80, and supports the oscillator shaft mounting pin 102. The shaft is held so that the guide pin 103 side can be rotated in the front-rear direction.

  A right columnar arm pin 94 is provided on the middle plate portion 91 of the rocker 90 so as to protrude rearward (door D side). The distal end of the arm pin 94 passes through a long hole 74 (upper long hole 74 on the outdoor side) formed in the composite bearing 70, and pin engagement formed on the rotating plate 45 of the rod rotating member 40. Engage with the groove (upper notch groove 49 on the outdoor side) and protrude further rearward into a long hole 65 (upper long hole 65 on the outdoor side) formed in the bearing seat 60. Inserted. When the oscillator 90 rotates, as shown in FIG. 7B, the tip of the arm pin 94 swings to the right when viewed from the front on the outdoor side, and the pin of the rod rotating member 40 The engagement groove (upper notch groove 49) is pushed and moved to the right to rotate the heel rotation member 40 clockwise. Then, the latch operation rod 11 connected to the rod rotation member 40 also rotates around the axis, and the latch is unlocked.

  As shown in FIGS. 5 to 6, a spring member 130 that biases the handle rotation seat 80 in the direction opposite to the above-described unlocking operation is attached to the handle shaft attaching pin 101. The spring member 130 is formed by making a spring steel wire into a coil of several turns so that it can be inserted into the handle shaft attachment pin 101. Arms 131 and 132 are extended at both ends of the coil. Resists torsional moments acting around the axis of the coil via On the outdoor side, the spring member 130 is assembled so as to fit in the lower position in the recess defined by the partition portions 85, 85 of the handle rotation seat 80. The arms 131 and 132 extend to the left side (door tip side of the door D) when viewed from the front, and one arm 131 is hooked on the notch 75 formed in the composite bearing 70, and the other arm 132 is rotated by the handle. The handle 80 is pressed against the back surface of the front portion 81 of the seat 80 to urge the handle rotating seat 80 to return to the position before unlocking.

  As shown in FIG. 1, the cover 110 is a member having a front cover portion 111 having a substantially circular shape when viewed from the front, and a cylindrical peripheral cover portion 112 extending from the periphery to the rear (door D side). The inner diameter of the circumferential cover portion 112 matches the outer diameter of the mounting seat 50, and the front cover portion 111 has a substantially rectangular window hole 113 that exposes a substantially front half portion of the handle rotation seat 80. The cover 110 is covered from the front so as to cover the mechanism portion assembled from the mounting seat 50 to the handle turning seat 80 as described above, and an engagement convex portion 114 formed on the rear edge of the peripheral covering portion 112 is provided. Then, it is fitted so as to be engaged with an engaging recess 57 formed at the rear edge of the mounting seat 50.

  As shown in FIG. 8, the main part of the present invention is that a handle shaft attaching pin 101, an oscillator shaft attaching pin 102, and a guide pin 103 are arranged with the oscillator shaft attaching pin 102 interposed therebetween, and the handle shaft The distance between the pivot pin 101 and the guide pin 103 is smaller than the distance between the contact pin 101 and the guide pin 103. According to this configuration, when the handle rotation seat 80 is rotated around the handle shaft attachment pin 101 by pushing and pulling the handle body 20, the oscillator 90 is associated with the oscillator shaft attachment pin 102. Is rotated at a rotation angle β larger than the rotation angle α of the handle rotation seat 80. In the illustrated embodiment, the rotation angle α of the handle rotation seat 80 is set to about 15 °, and the rotation angle β of the oscillator 90 is set to about 29 °. In other words, an effect of amplifying the rotation angle almost twice is obtained. By utilizing this mechanism principle, the latch can be unlocked by largely swinging the tip of the arm pin 94 with a smaller handle operating angle than in the prior art. Therefore, it is easy to push and pull the handle, and it is advantageous to make the structure of the whole mechanism compact especially in the thickness direction (front-rear direction).

  FIG. 9 is a main part perspective view showing a configuration of the indoor side in the operation handle mechanism described above, and FIG. 10 is an explanatory diagram showing the operation state of the main part as viewed from the front side on the indoor side. . These are contrasted with the outdoor configuration shown in FIGS. 6 and 7, and the differences between the indoor and outdoor mechanisms are summarized below.

  On the indoor side, the latch is unlocked by pushing the handle. In order to make it possible, the bearing seat 60, the collar rotating member 40, the spring members 120, 130, the composite bearing 70, the three pins 101, 102, 103, the handle rotating seat 80, and the oscillator 90 are: In either case, the arrangement viewed from the front side on the indoor side is assembled so as to be vertically symmetrical with the arrangement viewed from the front side on the outdoor side. That is, as shown in FIG. 10A, the spring member 120 fitted in the dish-like recess 63 of the bearing seat 60 has an outward arm 122 hooked on the upper right hook groove 66 and an inward arm. 121 is hooked into a notch groove 49 (spring engagement groove) located on the upper left side of the rotation plate 45 to assist the force when the rotation plate 45 rotates counterclockwise when viewed from the front. To do.

  As shown in FIGS. 3, 4, and 9, the pin arrangement as viewed from the indoor front is a handle shaft attaching pin 101, an oscillator shaft attaching pin 102, and a guide pin 103 in order from the right side (door end side). This is the same as the pin arrangement when the outdoor mechanism is viewed from the front. The handle rotation seat 80 rotates in the front-rear direction on the left side (hanging side) with the right side (door side) as a support shaft. The rocker 90 is accommodated in a lower position in a recess defined by the partitioning portions 85, 85 of the handle rotating seat 80, and the left side is rotated in the front-rear direction with the central rocker shaft mounting pin 102 as a support shaft. Move. The spring member 130 for returning the handle rotation seat 80 is attached to the right handle shaft attachment pin 101 and assembled to the upper position in the recess defined by the partition portions 85 and 85 of the handle rotation seat 80. Is extended to the left side (the suspension base side of the door D).

  The tip of the arm pin 94 projecting from the oscillator 90 passes through the lower long hole 74 formed in the composite bearing 70, and the lower notch formed in the rotating plate 45 of the rod rotating member 40. It engages with the groove 49 (pin engaging groove) and is further inserted into the lower elongated hole 65 formed in the bearing seat 60. Then, as shown in FIG. 10B, the tip of the arm pin 94 is swung to the right by the rotation of the rocker 90, and a notch groove 49 (pin engaging groove) on the lower side of the collar rotating member 40 is formed. Pushing and moving rightward, the heel rotation member 40 is rotated counterclockwise. Thus, regardless of the handle operation on either the outdoor side or the indoor side, the latch operating rod 11 connected to the rod rotating member 40 rotates in the same direction, and the latch is unlocked.

  Furthermore, by using the component configuration as described above, it is possible to increase the accuracy of the assembly and ensure a smooth operation, and to facilitate the assembly operation. The above-described component configuration can be shared indoors and outdoors except for some screw tightening methods, which is advantageous in reducing component procurement costs. It can be used even if the door D opens in reverse. Further, if all the mechanisms are rotated 90 ° around the axis of the latch operating rod 11, the push-pull operation can be performed with the rotating shaft of the handle being turned sideways. It should be noted that it is of course possible to carry out by slightly modifying the detailed shapes of the respective parts and the mutual relations, etc., without departing from the mechanism principle of the present invention described above.

10 Latch Lock 101 Handle Axis Pin 102 Rocker Axis Pin 103 Guide Pin 11 Latch Operation Rod 12 Latch Bolt 120 Spring Member 13 Lock Case 130 Spring Member 20 Handle Body 40 Rotation Member 49 Notch Groove (Pin Engagement Groove) )
50 mounting seat 54 countersunk screw 55 countersunk screw 56 coupling sleeve 60 bearing seat 61 base 62 bearing retainer piece 63 countersunk recess 65 long hole 69 groove 70 compound bearing 701 circular shaft hole 702 circular shaft hole 703 arc-shaped long hole 71 Back plate portion 72 Pin shaft support piece portion 74 Long hole 80 Handle rotation seat 801 Circular shaft hole 803 Circular shaft hole 802 U-shaped notch 82 Shaft portion 83 Side wall portion 90 Oscillator 94 Arm pin D Door

Claims (8)

The lock case is attached to the door, the latch case is provided with a latch operating rod orthogonal to the door surface, and the latch bolt is retracted and unlocked by rotating the latch operating rod around the axis. The operation handle mechanism of
A bearing seat attached to the door surface, a rod rotating member connected to the end of the latch operating rod, a composite bearing attached to be overlaid on the bearing seat, and a handle shaft attachment pin. A handle rotating seat that is movably mounted, a rocker that is pivotally mounted to the composite bearing via a rocker shaft mounting pin, and a handle body that is coupled to the handle rotating seat. And
The rod rotating member is held between the bearing seat and the composite bearing so as to be able to rotate integrally with the latch operating rod,
The composite bearing includes a handle bearing pin, a pivot bearing pin, a guide pin that engages with an arc-shaped elongated hole formed in the complex bearing, and regulates the pivoting range of the steering pivot and the pivot. However, it is attached in parallel to each other with the pivot shaft pin in the middle, and so that both pins are parallel to the door surface,
By pushing and pulling the handle main body, the handle rotation seat rotates about the handle shaft attachment pin, and the oscillator rotates about the oscillator shaft attachment pin. It is held to rotate at a rotation angle larger than the moving angle,
An arm pin projects from the swinger toward the door, and the tip of the arm pin engages with a pin engaging groove formed in the swivel turning member. An operation handle mechanism for a latch lock, which is configured to push and move a pin engaging groove of a rotating member to rotate the hook rotating member and the latch operating rod connected thereto around an axis. The lock case is attached to the door, the latch case is provided with a latch operating rod orthogonal to the door surface, and the latch bolt is retracted and unlocked by rotating the latch operating rod around the axis. The operation handle mechanism of
A bearing seat attached to the door surface, a rod rotating member connected to the end of the latch operating rod, a composite bearing attached to be overlaid on the bearing seat, and a handle shaft attachment pin. A handle rotating seat that is movably mounted, a rocker that is pivotally mounted to the composite bearing via a rocker shaft mounting pin, and a handle body that is coupled to the handle rotating seat. And
The rod rotating member is held between the bearing seat and the composite bearing so as to be able to rotate integrally with the latch operating rod,
The composite bearing includes a handle bearing pin, a pivot bearing pin, a guide pin that engages with an arc-shaped elongated hole formed in the complex bearing, and regulates the pivoting range of the steering pivot and the pivot. However, each pin is attached so that it is parallel to the door surface, and the distance between the pivot pin and the guide pin is smaller than the distance between the handle pin and the guide pin.
By pushing and pulling the handle main body, the handle rotation seat rotates about the handle shaft attachment pin, and the oscillator rotates about the oscillator shaft attachment pin. It is held to rotate at a rotation angle larger than the moving angle,
An arm pin projects from the swinger toward the door, and the tip of the arm pin engages with a pin engaging groove formed in the swivel turning member. An operation handle mechanism for a latch lock, which is configured to push and move a pin engaging groove of a rotating member to rotate the hook rotating member and the latch operating rod connected thereto around an axis. In the operation handle mechanism of the latch lock according to claim 1 or 2,
The swivel turning member is housed in a dish-shaped recess formed in the bearing seat and is biased in the unlocking direction via a spring member hooked between the dish-shaped recess. An operating handle mechanism for a latch lock. In the operation handle mechanism of the latch lock according to any one of claims 1 to 3,
The bearing seat has a base portion and a bearing press piece portion extending forward from the upper and lower portions thereof, and a handle shaft attaching pin and a pivot shaft are provided on the opposing surfaces of the upper and lower bearing press piece portions. Three grooves that hold the upper and lower ends of the landing pin and the guide pin are formed, respectively.
The composite bearing has a back plate portion and a pin shaft support piece portion extending forward from the upper and lower portions thereof, and the upper and lower bearing press pieces provided on the bearing seat with the upper and lower pin shaft support piece portions. The upper and lower pin shaft support pieces are held between two circular shaft holes through which the handle shaft attaching pin and the oscillator shaft attaching pin are inserted, and arc-shaped elongated holes for guiding the guide pins And each formed,
The handle rotation seat has a shape in which the upper and lower shaft-passing portions and the left and right side wall portions surround a recess that opens to the door side, and the upper and lower shaft-passing portions are provided on the composite bearing. The upper and lower shaft passages have two circular shaft holes through which the handle shaft mounting pins and guide pins are inserted, and a U-shaped notch to avoid interference with the oscillator shaft mounting pins. An operating handle mechanism for a latch lock, characterized in that each of the latches is formed. In the operation handle mechanism of the latch lock according to any one of claims 1 to 4,
An operating handle mechanism for a latch lock, wherein the oscillator is housed in an upper position or a lower position in a recess formed in the handle rotation seat and rotates. In the operation handle mechanism of the latch lock according to any one of claims 1 to 5,
An operation handle mechanism for a latch lock, wherein a spring member for urging the handle body in a return direction is attached to the handle shaft attaching pin. In the operation handle mechanism of the latch lock according to claim 5 or 6,
An operating handle mechanism for a latch lock, wherein a long hole through which an arm pin of a rocker can be inserted is formed in a back plate portion of a composite bearing. In the operation handle mechanism of the latch lock according to any one of claims 1 to 7,
Mounting seats are applied to both the indoor and outdoor sides of the door, both mounting seats are connected to each other via a connecting member that penetrates the door, and the bearing seat and the composite bearing are attached to the mounting seats. Operation handle mechanism of latch lock.

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