JP2012233377A - Thumb turn structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thumb turn structure which allows a security function for restricting the rotation of a knob part to be maintained in a release state without use of a separate member.SOLUTION: A thumb turn structure comprises: a button 39 which projects from the external surface of a knob part 15 and releases the restriction of an internal thumb turn rotation-restricting mechanism when pushed in; and a switch member having a portion exposed to the surface, which is disposed at the knob part 15 so as to be slidable in the orthogonal direction to the push-in direction of the button 39, and engages the pushed-in button 39 at one slide position 67 so as to retain the button in the push-in position. Preferably the thumb turn structure is provided with a pair of buttons 39 to release the restriction of the thumb turn rotation-restricting mechanism when pushed-in together at the knob part 15, and the switch member retains the pair of concurrently pushed-in buttons 39 in the push-in position.

Description

  The present invention relates to a thumb-turn structure that prevents an unauthorized unlocking operation on a lock mechanism by restricting rotation of a knob.

  A lock box provided at an entrance door or the like incorporates a locking / unlocking mechanism that locks / unlocks the door by engaging / disengaging a dead bolt that has been advanced / retracted from / from the door mouth. The dead bolt of the lock box can be easily locked and unlocked by a cylinder lock from the outdoor side and by a thumb turn from the indoor side. However, in recent years, there has been an increase in unauthorized unlocking that unlocks locking devices by inserting a rod or wire from a small hole opened by a post port or a machine tool, locking it to a thumb turn that is easy to rotate, and rotating it. Yes. For example, there is a security cover for thumb turn disclosed in Patent Document 1 described below to prevent the thumb turn from being locked and rotated.

  In this security cover, a thumb turn insertion hole is formed, and a portion covering the outer surface of the thumb turn which draws a circular trajectory during rotation is formed in a circular shape along the circular trajectory. Then, a set screw is provided which is screwed into the insertion hole, abuts against the side surface of the thumb turn, and is clamped from both sides. This security cover is fixed to the thumb turn by inserting a thumb turn into the insertion hole, covering the thumb turn so as to cover the security cover, and then screwing and tightening a set screw. Therefore, it becomes difficult to lock and rotate the wire or the like with the security cover placed on the thumb turn.

  Since the above-described conventional crime prevention cover has a cylindrical shape, the conventional picking operation in which the tabular pick is sandwiched between fingers cannot be performed, and the operability is lowered. Under these circumstances, a security thumb turn has been proposed in which a button is provided on the knob to make unauthorized operations difficult from the outside. According to this crime prevention thumb turn, if the rotational force while simultaneously pressing a pair of buttons is not applied to the knob, the operation of the knob cannot be performed, so that the inserted wire, bar, etc. can be hooked on the knob. Thus, unauthorized unlocking by rotating the knob could be prevented.

Japanese Utility Model Publication No. 4-40362 Japanese Patent No. 4430465

  However, the security thumb turn provided with the above buttons requires the operation of pressing a pair of buttons at the same time.For example, when a person goes in and out frequently, such as indoor interior work without temporarily living, the proper operation is not possible. It became complicated. For this reason, a structure has been proposed in which a security thumb turn cap that disables the button is put on the security thumb turn with a button (see Patent Document 2). If this security thumb-turn cap is used, the operation of the button used in the unlocking operation can be changed to a state that is not essential according to the use situation. However, since the security thumb turn cap is a separate member from the thumb turn, it has been troublesome to attach and detach according to the use situation. In addition, storage in the case of desorption when not in use is complicated and may be lost.

  This invention is made | formed in view of the said situation, The objective is to provide the thumb turn structure which can hold | maintain the crime prevention function in which rotation of a knob | pick part is controlled in a cancellation | release state, without using another member.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The thumb turn structure according to claim 1 of the present invention includes a button 39 that is provided to protrude from the outer surface 47 of the knob 15 and is pushed to release the restriction of the internal thumb turn rotation control mechanism,
A part of the button 39 is exposed to the outer surface 47 and is slidable in a direction orthogonal to the pushing direction of the button 39 and is provided in the knob 15, and is engaged with the pushed button 39 at one sliding position 67. A switching member that holds the button 39 in the pushed position;
It is characterized by comprising.

  In this thumb-turn structure, when the button 39 protrudes, the thumb-turn rotation restricting mechanism operates and the unlocking operation by the thumb-turn 11 cannot be performed. When the button 39 is pushed, the restriction by the thumb turn rotation restricting mechanism is released. In a state where the button 39 is pushed, when the switching member provided in the thumb turn 11 is slid to one slide position 67, the button 39 is held in the pushed state. As a result, the thumb turn rotation restricting mechanism is held in a state where the restriction is released. That is, regardless of the pressing operation of the button 39, the locking and unlocking can be performed as usual by the rotation operation of only the thumb turn 11.

The thumb turn structure according to claim 2 of the present invention is the thumb turn structure according to claim 1,
A pair of the buttons 39 that release the restriction of the thumb-turn rotation restricting mechanism by being pushed at the same time is provided on the knob 15,
A pair of the buttons 39 in which the switching member is simultaneously pressed is held in the pressed position.

  In this thumb turn structure, the buttons 39 are arranged at two positions of the knob 15 by using the operation of picking the knob 15 with two fingers. The pair of buttons 39 can be pushed in simultaneously with the picking operation of the picking part 15. Thereby, when a pair of buttons 39 are pushed in at the same time, it is possible to adopt the thumb turn rotation restricting mechanism in which the restriction is released.

The thumb turn structure according to claim 3 of the present invention is the thumb turn structure according to claim 2,
The knob 15 is formed in a plate shape,
One of the pair of buttons 39 is disposed on the knob surface 53,
The other of the pair of buttons 39 is disposed on a knob part back surface 55.

  In this thumb-turn structure, it is easier to grasp the unlocked / unlocked state and the unlocking / unlocking operation direction by visual and tactile sensations than in the case where the knob 15 is a cylindrical body, for example. In addition, the direction in which it is easy to pick is the thickness direction, and the buttons 39 are arranged on the front and back surfaces where two fingers come into contact with each other, so that the buttons 39 can be arranged and pushed easily.

A thumb turn structure according to claim 4 of the present invention is the thumb turn structure according to any one of claims 1, 2 and 3,
The sliding direction of the switching member is a direction along the thumb turn center axis 75.

  In this thumb turn structure, the sliding direction of the switching member is a direction along the thumb turn rotation central axis 75, that is, a direction perpendicular to the door surface. As a result, the switching operation direction of the switching member is a push-pull direction that is unrelated to the rotational posture of the thumb turn 11.

  The thumb-turn structure according to claim 5 of the present invention is the thumb-turn structure according to any one of claims 1, 2, and 3, and the sliding direction of the switching member is perpendicular to the thumb-turn rotation center axis 75. It is characterized by that.

  In this thumb-turn structure, the switching member is orthogonal to the thumb-turn rotation center axis 75. For example, when the knob 15 is plate-shaped, it is parallel to the front and back surfaces of the knob 15 and perpendicular to the thumb-turn rotation center axis 75. The direction to do can be the operation direction. Therefore, a structure in which the knob side portion 117 sandwiched between the knob portion front surface 53 and the knob portion rear surface 55 is operated to slide is possible.

The thumb-turn structure according to claim 6 of the present invention is the thumb-turn structure according to claim 3 or 4,
The switching member is a peripheral member 61 constituting a knob portion peripheral edge 57.

  In this thumb turn structure, in the structure in which the switching member slides in a direction along the thumb turn rotation center axis 75, the switching member becomes the peripheral member 61 sandwiched between the knob portion front surface 53 and the knob portion rear surface 55, whereby the knob portion 15 Visual recognition is always possible regardless of the rotation posture. Moreover, the design freedom of the knob | pick part surface 53 and the knob | pick part back surface 55 is ensured.

The thumb turn structure according to claim 7 of the present invention is the thumb turn structure according to claim 5,
The switching member has a swing shaft 45 that supports the button 39 so as to be swingable in the push-in direction.

  In this thumb-turn structure, a single swinging shaft 45 includes a member for a swinging structure that allows the button 39 to be pushed in, and a guide member for sliding the switching member in a direction orthogonal to the thumbturn rotation central shaft 75. It is also used.

The thumb turn structure according to claim 8 of the present invention is the thumb turn structure according to any one of claims 1 to 7,
The knob 15 and the switching member are provided with a click member that moves and urges the switching member to one slide position 67 and the other slide position.

  In this thumb turn structure, a click feeling is generated by the click member every time the switching member is moved to one slide position 67 and the other slide position.

The thumb turn structure according to claim 9 of the present invention is the thumb turn structure according to any one of claims 1 to 8,
The switching member is formed so as to be capable of emitting light including a phosphorescent material.

  In this thumb turn structure, the switching member emits light even when it becomes dark, and it is easy to determine the switching member that is the operation site even in the knob 15 that is generally formed in a small size. In particular, in the case of a structure also used as the peripheral member 61, it is an effective means for the discrimination.

  According to the thumb turn structure of the first aspect of the present invention, in a specific use state, the crime prevention function in which the rotation of the knob is restricted can be held in the released state without using another member. As a result, it is possible to eliminate complicated management and operation such as storage of a cap, which is a separate member, and release of the security function for each thumb turn operation.

  According to the thumb turn structure of the second aspect of the present invention, the restriction can be released only when both of the paired buttons are pushed in, and the crime prevention property is improved.

  According to the thumb turn structure of the third aspect of the present invention, since the knob portion is formed in a plate shape, the pair of buttons can be easily operated by a natural operation of picking the knob portion in the thickness direction. .

  According to the thumb-turn structure of the fourth aspect of the present invention, the operation direction of the switching member can be made perpendicular to the door surface, and the operation of the button and the operation direction of the switching member can be distinguished from each other, making it difficult for erroneous operations to occur. .

  According to the thumb turn structure according to claim 5 of the present invention, the operation direction of the switching member becomes a direction orthogonal to the thumb turn rotation central axis, so that the operation of picking the knob and the operation of operating the switching member are shifted. Becomes easier and the operability is improved.

  According to the thumb-turn structure of the sixth aspect of the present invention, the switching member that slides in the direction along the central axis of the thumb-turn rotation is the peripheral member of the knob, so that it can be switched at any rotational position of the knob. The member can be seen well.

  According to the thumb turn structure of the seventh aspect of the present invention, the button can be swung and the switching member can be slid by using a single swing shaft, the number of parts is reduced, and the thumb turn is made compact. it can.

  According to the thumb turn structure of the eighth aspect of the present invention, it is possible to obtain a good operational feeling of the switching member to the restricted state or the restricted release state of the thumb turn rotation restricting mechanism, and to prevent incomplete operation.

  According to the thumb turn structure of the ninth aspect of the present invention, the visibility of the switching member in a dark place such as at night can be improved and the operation can be facilitated.

It is a perspective view of the thumb turn which has the thumb turn structure concerning a 1st embodiment. It is the side view which notched a part of thumb turn shown in FIG. It is the side view which notched the knob | pick part of the thumb turn shown in FIG. It is the top view which notched a part of thumb turn shown in FIG. It is a principal part enlarged view of a click member. It is the side view which notched a part of thumb turn by which the switching member was slid. It is the side view which notched the knob part shown in FIG. It is the top view which notched a part of thumb turn shown in FIG. It is a perspective view of the thumb turn which concerns on 2nd Embodiment. FIG. 10 is an exploded perspective view of the thumb turn shown in FIG. 9. FIG. 10 is a plan view in which a part of the thumb turn shown in FIG. 9 is cut away. FIG. 10 is a side view in which a part of the thumb turn shown in FIG. 9 is cut away. It is a front view of the thumb turn shown in FIG. It is the top view which notched the knob | pick part of the thumb turn after the switching member was operated. It is the side view which notched a part of thumb turn after the switching member was operated. It is a front view of the thumb turn shown in FIG.

Embodiments according to the present invention will be described below with reference to the drawings.
1 is a perspective view of a thumb turn having a thumb turn structure according to the first embodiment, FIG. 2 is a side view of the thumb turn shown in FIG. 1, and FIG. 3 is a thumb turn knob shown in FIG. FIG. 4 is a plan view in which a part of the thumb turn shown in FIG. 3 is cut out, and FIG. 5 is an enlarged view of a main part of the click member.
A lock box (not shown) is provided on the door 13 to which the thumb turn 11 having the thumb turn structure according to the present embodiment is attached. The lock box is provided with a latch bolt, a dead bolt, and a lock mechanism for moving these forward and backward from the mouth of the door 13. The dead bolt of the lock box is a thumb-turn knob (hereinafter simply referred to as a “knob”) 15 provided by a cylinder lock provided on the outdoor side surface of the door 13 or by an indoor side surface of the door 13. Can be moved forward and backward from the mouth of the door 13 by rotating. The thumb turn 11 is operated to enable or disable the picking operation by a thumb turn rotation restricting mechanism described later.

  A fixed cylinder 17 shown in FIG. 2 constituting the thumb turn 11 is fixed to the door 13 or the lock box. A pair of fixing portions 20 project from the outer periphery of the fixing cylinder 17 at one end in the axial direction, and the fixing portion 20 has a fixing hole 21. The fixed cylinder 17 is fixed to a lock box provided in the door through the fixing hole 21.

  A spacer ring 23 (see FIG. 4) is extrapolated at the tip of the fixed cylinder 17, and a decorative cylinder 25 having a central hole is put on the outer periphery thereof and fixed. A conical decorative ring 27 having a flat tip is externally mounted on the tip of the outer peripheral side of the decorative tube 25. The rear end of the decorative ring 27 is pressed against the indoor surface of the door 13 by the urging force of the spring 31 disposed between the bent portion 29 at the rear end and the rear end surface of the decorative cylinder 25.

  A core shaft 33 is rotatably provided inside the fixed cylinder 17. The core shaft 33 is provided with a tail piece 35 protruding from the rear of the fixed cylinder 17. The tail piece 35 is connected to an input / output shaft of a lock mechanism (not shown) of the lock box.

  Inside the distal end side of the fixed cylinder 17, a knob rod 37 to which the knob portion 15 is attached is rotatably provided. Whether the knob 37 is rotated or not is controlled by a thumb-turn rotation restricting mechanism including a button 39 described later. When the restriction by the thumb-turn rotation restricting mechanism is released and the knob 37 is rotated, the core shaft 33 is rotated in conjunction with it.

  The knob 15 is formed in a substantially plate shape whose contour shape is a substantially semicircular curve as shown in FIGS. 1 and 4, for example. Thereby, even if it is going to hook a wire to the knob | pick part 15 or to push and push it with a stick | rod, since there is no corner | angular part, a wire | line | wire and a stick | rod are easy to slip, and it is difficult to apply these unauthorized rotational operation force. In addition, since the corner portion is eliminated, the fit feeling with fingers is also improved. In this embodiment, as shown in FIG. 1, the depression 41 is formed in the front and back of the knob | pick part 15, and the feeling of fitting by a finger is more favorable. In this embodiment, the knob 15 is configured by combining thumb turn cases 19 made of a pair of plate-like members formed in the same shape, and the knobs 37 are fixed by the fixing plates 18 protruding from the opposing inner surfaces. It is fixed with the pinching screw 16 (see FIG. 5).

  A button accommodation hole 43 is formed in the thumb turn case 19 so as to penetrate the front and back surfaces of the knob portion 15. A pair of buttons 39 that are swingable by a swing shaft 45 are stored in the button storage holes 43. The button 39 is protruded by a recess 41 on the front and back surfaces of the knob 15. That is, the button 39 is provided so as to protrude from the outer surface 47 of the knob portion 15, and a length (stroke) for pushing the button 39 by the recess 41 is obtained. Each button 39 has a leg 49 projecting toward the lock box. The leg portion 49 penetrates the knob 37 and extends to the thumb turn rotation restricting mechanism and is interlocked.

  A button urging spring 51 is inserted between the pair of buttons 39, and the button urging spring 51 urges both the buttons 39 in the separating direction. The buttons 39 are arranged in a direction away from each other by a button urging spring 51 so that the leg portions 49 are arranged horizontally (see FIG. 3). Since the leg portion 49 is disposed horizontally, the thumb turn rotation restricting mechanism prevents the knob portion 15 from rotating and prevents the rotation to the core shaft 33 from being transmitted.

  On the other hand, when the button 39 is pushed in the approaching direction against the urging force of the button urging spring 51, the leg portion 49 opens (see FIG. 6). Thereby, in the thumb turn rotation restricting mechanism, the rotation to the core shaft 33 can be transmitted, and the rotation operation of the knob 15 is transmitted to the core shaft 33. That is, the button 39 releases the restriction of the internal thumb-turn rotation restricting mechanism by being pushed.

  In the present embodiment, the knob portion 15 is formed in a plate shape, one of the pair of buttons 39 is disposed on the knob portion surface 53 shown in FIG. 3, and the other of the pair of buttons 39 is disposed on the knob portion rear surface 55. Compared with the case where the knob | pick part 15 is a cylindrical body etc., grasping | ascertainment of a locking / unlocking state and a locking / unlocking operation direction becomes easy by visual and tactile sense. Further, the direction in which it is easy to pick is the thickness direction, and the buttons 39 are arranged on the front and back surfaces where the two fingers come into contact with each other, and the arrangement of the buttons 39 becomes easy. Accordingly, the pair of buttons 39 can be easily operated by a natural operation of picking the knob 15 in the thickness direction.

  A container portion 59 shown in FIG. 4 having a substantially C shape is formed on the periphery 57 of the knob shown in FIG. A peripheral member 61, which is a substantially C-shaped switching member, is detachably fitted into the accommodating portion 59. The peripheral member 61 has a spring property and is preferably colored in a color different from that of the knob 15. The coloring may be one color, and may be color-coded into two colors with different colors on the left and right sides of the substantially central portion of the peripheral member 61 in the arc direction. By performing such color coding, it is possible to easily distinguish the top and bottom or the left and right when the knob 15 is positioned horizontally or vertically.

  In addition, a fluorescent paint can be used for coloring, and the visibility can be improved by increasing the intensity of reflected light. Further, the peripheral member 61 may be formed so as to be capable of emitting light including a phosphorescent material. Even in the dark, the peripheral member 61 emits light, and the peripheral member 61 that is the operation site can be easily identified even in the knob 15 that is generally formed in a small size. In particular, in the case of a structure also used as the peripheral member 61, it is an effective means for the discrimination. Thereby, the visibility of the peripheral member 61 can be improved at night or in a dark place, and the operation can be facilitated.

  In the present embodiment, the peripheral member 61 is made of a synthetic resin material such as polycarbonate resin. By using the synthetic resin material in this way, integral molding is possible, and the highly accurate peripheral member 61 having a spring property can be freely manufactured and mass-produced at low cost. Further, by adding a pigment (including a fluorescent paint and a phosphorescent material) or the like to the resin material before molding, coloring becomes possible, and coloring that is less likely to fade or discolor compared to the case of application is possible. The peripheral member 61 may be formed of a metal material or other materials instead of the synthetic resin material.

  By the way, the peripheral member 61 is slidable in a direction orthogonal to the pushing direction of the button 39. A claw portion 63 shown in FIG. 4 is formed at the rear of the peripheral member 61, and the claw portion 63 is engaged with the step portion 65 of the thumb turn case 19 to prevent separation from the door 13. An anti-slip portion 61 a is provided on the front side of the claw portion 63. The peripheral member 61 is engaged with the pushed button 39 at one slide position 67 (see FIG. 8) approaching the door surface, and holds the button 39 in the pushed position. FIG. 4 shows the peripheral member 61 before being slid to one slide position 67, that is, the peripheral member 61 at the other slide position.

  As shown in FIG. 3, a pair of convex portions 69 that are spaced apart from each other are provided at the rear of the tip portion that is the inner peripheral surface of the peripheral member 61. On the other hand, the clamping piece 73 protrudes by providing the recessed part 71 at the front-end | tip of the button 39. FIG. When the pair of buttons 39 are pushed in, as shown in FIG. 7, the holding pieces 73 come into contact with each other. The sandwiching piece 73 that comes into contact and is held in a state of being sandwiched by the upper and lower convex portions 69 as the peripheral member 61 is slid to one slide position 67. At the same time, the convex portion 69 is fitted with the concave portion 71.

  In the present embodiment, the sliding direction of the peripheral member 61 is a direction along the axis of the thumb turn rotation central shaft 75. That is, the direction is perpendicular to the door surface. Accordingly, the switching operation direction of the peripheral member 61 is a push-pull direction that is unrelated to the rotational posture of the thumb turn 11. Thereby, the operation of the button 39 and the operation direction of the peripheral member 61 can be distinguished from each other, and an erroneous operation can be made difficult to occur.

  The peripheral member 61 and the thumb turn case 19 are provided with a click member that moves and urges the peripheral member 61 to one slide position 67 and the other slide position. As shown in FIG. 5, the click member includes an elastic click claw 77 provided on the peripheral member 61 and a click groove 79 provided on the thumb turn case 19. Each time the peripheral member 61 is moved to one slide position 67 and the other slide position, a click feeling is generated by the click member. Thereby, the favorable operation feeling of the peripheral member 61 to the control state of the thumb turn rotation control mechanism or the control release state can be obtained, and incomplete operation can be prevented.

Next, the operation of the thumb turn structure having the above configuration will be described.
6 is a side view in which a part of the thumb turn 11 on which the switching member is slid is cut out, FIG. 7 is a side view in which the knob 15 shown in FIG. 6 is cut out, and FIG. 8 is a part of the thumb turn 11 shown in FIG. FIG.
In the thumb-turn structure described above, when the button 39 protrudes, the thumb-turn rotation restricting mechanism operates and the unlocking operation by the thumb-turn 11 cannot be performed. As shown in FIGS. 6 and 7, when the button 39 is pushed, the restriction by the thumb turn rotation restricting mechanism is released. In the state where the button 39 is pushed in, as shown in FIG. 8, when the peripheral member 61 provided in the thumb turn 11 is slid to one slide position 67, the button 39 is held in the pushed state. As a result, the thumb turn rotation restricting mechanism is held in a state where the restriction is released. That is, regardless of the pressing operation of the button 39, the locking / unlocking operation can be performed as usual by the rotation operation of only the thumb turn 11.

  In this thumb-turn structure, the knob 15 is provided with a pair of buttons 39 that release the restriction of the thumb-turn rotation restricting mechanism by being simultaneously pushed. The peripheral member 61 holds the pair of buttons 39 that are simultaneously pressed in the pressed position. Using the operation of picking the knob 15 with two fingers, the buttons 39 are arranged at two positions of the knob 15, and the pair of buttons 39 can be pushed in simultaneously with the knob operation of the knob 15. Accordingly, it is possible to employ a thumb-turn rotation restricting mechanism in which the restriction is released when the pair of buttons 39 are pressed simultaneously. As a result, only when both buttons 39 are pushed in can the structure be released from the restriction, and the crime prevention performance is improved. In order to return from the restriction release state to the original restriction state, both buttons 39 can be restored by the urging force of the button urging spring 51 and the restriction state can be released simply by sliding and pulling the peripheral member 61 forward. It becomes.

  Further, the switching member is a peripheral member 61 constituting the knob portion peripheral edge 57. In the structure in which the switching member slides in the direction along the thumb-turn rotation center axis 75, the switching member becomes the peripheral member 61 sandwiched between the knob portion front surface 53 and the knob portion rear surface 55, thereby depending on the rotation posture of the knob portion 15. Always visible. Moreover, the design freedom of the knob | pick part surface 53 and the knob | pick part back surface 55 is ensured. By using the switching member that slides in the direction along the thumb turn center axis 75 as the peripheral member 61 of the knob 15, the switching member can be seen well even at any rotational position of the knob 15.

  Thus, according to the thumb turn structure described above, the thumb turn 11 itself is provided with a button holding function rather than a separate structure as in the prior art. Thereby, the thumb turn 11 can be used while the pressed state of the button 39 is maintained, and the complexity at the time of unlocking is reduced. It can also be used during construction periods, and other places such as places where people go in and out during a specific time. It is also useful when the operation of pressing the small button 39 becomes difficult, such as when the finger is inconvenient. When the thumb turn 11 having the button function is already installed, the switching operation is possible. Furthermore, the switching member which is the peripheral member 61 constitutes the peripheral edge 57 of the knob, and the design is not impaired. Further, according to the peripheral member 61, as shown in FIG. 6, the front end portion slides and the peripheral portion as the knob portion 15 has a concave groove shape, and the switching state can be determined also by tactile sensation.

Next, a second embodiment of the thumb turn structure according to the present invention will be described.
9 is a perspective view of the thumb turn 81 according to the second embodiment, FIG. 10 is an exploded perspective view of the thumb turn 81 shown in FIG. 9, and FIG. 11 is a plan view in which a part of the thumb turn 81 shown in FIG. 12 is a side view in which a part of the thumb turn 81 shown in FIG. 9 is cut away, and FIG. 13 is a front view of the thumb turn 81 shown in FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the member equivalent to the member shown in FIGS.
In the thumb turn 81 having the thumb turn structure according to the present embodiment, the switching member is constituted by a slide rod 83. The slide rod 83 has switching buttons 85 at both ends in the sliding direction. The slide direction of the slide rod 83 is perpendicular to the thumb turn rotation center axis 75. In the present embodiment, the peripheral member 61 is not used. Instead, a cap member 87 is attached to the knob 15.

  As shown in FIG. 10, a pair of thumb turn cases 89 formed in the same shape are fixed to the knob 37 from above and below. The thumb turn case 89 is provided with a button through hole 91 for exposing the button 39. The thumb turn case 89 is provided with a support column 93 and a fixed plate 95. A screw hole 97 and a shaft escape groove 99 are formed in the fixing plate 95.

  The knob rod 37 has a pair of parallel arm plates 101 protruding forward from the decorative ring 27. The slide rod 83 has a swing shaft 45 that supports the button 39 so as to be swingable in the pushing direction. The swing shaft 45 supports the pair of buttons 39 through. The swing shaft 45 is prevented from interfering with the fixed plate 95 by the shaft escape groove 99. A switching button portion 85 is press-fitted and fixed to one end of the swing shaft 45. A lock lever 103 is fixed inside the switching button portion 85. The other switching button portion 85 is fixed to the other end of the swing shaft 45 penetrating the arm plate 101 and the button 39. These switching button portions 85 can be formed in a square shape, for example. As shown in FIG. 11, the other switching button portion 85 is fixed to the swing shaft 45 by a set screw 105 screwed from the front. That is, the switching button portions 85 are fixed to both ends of the swing shaft 45, respectively.

  In this way, after the swing shaft 45 is passed through the arm plate 101 and the button 39 and the slide rod 83 is attached, the thumb turn case 89 is fixed to the knob 37 from above and below. The pair of thumb turn cases 89 are fixed by screwing screws 100 (see FIG. 11) inserted through the screw holes 97 of the fixing plate 95 into the fixing screw holes 107 shown in FIG. The fixing screw hole 107 can be exposed by detaching the switching button portion 85 from the swing shaft 45.

  As shown in FIG. 16, when one of the switching button portions 85 is pressed, the switching button portion 85 is pushed to a position that substantially matches the outer shape of the knob portion 15, and the other protrudes from the outer shape of the knob portion 15. Further, as shown in FIG. 13, when the other is pushed, it is pushed to a position that substantially matches the outer shape of the knob portion 15, and one protrudes from the outer shape of the knob portion 15. Note that the pair of switching button portions 85 functions as one that holds the button 39 that is pushed in, and the other that releases the button 39 that is held in the pushed state.

  Here, sandwiching wings 109 project from the side portions of the pair of buttons 39. When the pair of buttons 39 is pushed in, the sandwiching wing 109 approaches each other and comes into substantial contact. On the other hand, the lock lever 103 fixed to the slide rod 83 is formed with a holding groove 111 for sandwiching the pair of sandwiching wings 109 close to each other in the approaching state. That is, when the pair of buttons 39 are pushed in and the one switching button 85 is pressed while the holding blade 109 is in contact, the slide rod 83 moves, and the holding groove 111 holds both the holding blades 109 and 109. It is supposed to hold on. When the other protruding switching button portion 85 is pushed in this state, the holding of the holding blade portion 109 by the holding groove 111 is released, and the pair of buttons 39 are again protruded by the button urging spring 51. That is, the thumb turn rotation restricting mechanism is activated.

  The thumb turn 81 is also provided with a click member that moves and urges the slide rod 83 to one slide position 67 and the other slide position. The click member of the present embodiment includes a click spring 113 shown in FIG. 11 and a click protrusion 115 to which the click spring 113 is elastically locked. Each time the slide rod 83 is moved to one slide position 67 and the other slide position, a click feeling is generated by the click spring 113 and the click protrusion 115. As a result, it is possible to obtain a good operational feeling by the click projection 115 to the restricted state or the released state of the thumb-turn rotation restricting mechanism, thereby preventing incomplete operation.

Next, the operation of the thumb turn structure having the above configuration will be described.
14 is a plan view in which the knob 15 of the thumb turn 81 after the switching member is operated is cut away, FIG. 15 is a side view in which a part of the thumb turn 81 is operated after the switching member is operated, and FIG. FIG. 16 is a front view of a thumb turn 81 shown in FIG.
In the thumb turn structure according to this embodiment, when the button 39 protrudes, the thumb turn rotation restricting mechanism operates and the unlock operation by the thumb turn 81 cannot be performed. As shown in FIGS. 14 and 15, when the pair of buttons 39 are pressed simultaneously, the restriction by the thumb turn rotation restricting mechanism is released. When one of the switch buttons 85 of the slide rod 83 provided in the thumb turn 81 is pressed in the state where these buttons 39 are pressed, the button 39 is held in the pressed state as shown in FIG. As a result, the thumb turn rotation restricting mechanism is held in a state where the restriction is released. That is, regardless of the pressing operation of the button 39, the locking / unlocking operation can be performed as usual by the rotation operation of only the thumb turn 81.

  Further, when the slide rod 83 is orthogonal to the thumb-turn rotation center axis 75, for example, when the knob 15 is plate-shaped, the direction is parallel to the front and back surfaces of the knob 15 and orthogonal to the thumb-turn rotation center axis 75. Can be in the operating direction. Therefore, the switch button portion 85 of the slide rod 83 is disposed on the knob side portion 117 (see FIG. 16) sandwiched between the knob portion front surface 53 and the knob portion rear surface 55, so that the structure can be made inconspicuous and not impair the design. It becomes. In addition, since the operation direction of the slide rod 83 is orthogonal to the thumb-turn rotation center axis 75, the operation of picking the knob 15 and the operation of operating the switching member are different directions and are not linked operations. It is possible to do it consciously as.

  Further, a member for a swinging structure that allows the button 39 to be pushed in and a guide member for sliding the slide rod 83 in a direction orthogonal to the thumb-turn rotation center shaft 75 are combined with one swinging shaft 45. The That is, the swing of each button 39 and the slide of the slide rod 83 can be performed by using the single swing shaft 45, the number of parts can be reduced, and the thumb turn 81 can be made compact.

  And since the switching button part 85 after operation protrudes on the reverse side, the state can be visually confirmed, and switching is performed by pressing the switching button part 85 in the reverse direction, so that the operation method is easy to understand and simple. .

  Therefore, according to the thumb turn 11 and thumb turn 81 provided with the thumb turn structure according to the above embodiment, the crime prevention function in which the rotation of the knob portion 15 is restricted is used in a specific use state, using a separate member as in the prior art. The release state can be maintained. As a result, it is possible to eliminate complicated management and operations such as storage of caps and the like, and release of the security function for each thumb turn operation, and the switching operation can be performed with the structure of the thumb turn itself.

  Note that the engagement structure of the button 39 and the peripheral member 61, the button 39 and the slide rod 83 disclosed in the above embodiment is an example, and the combination of the uneven shapes is formed in the opposite direction. Further, the shape of each engaging structure is not limited. Moreover, the shape of the knob | pick part 15 is an example, and is not limited to the shape of illustration. Furthermore, in the above-described embodiment, the case where a pair of buttons 39 are provided has been described as an example, but one button 39 may be provided. The position of the button 39, the shape of the switching member, and the position can be changed as appropriate in accordance with the shape of the knob 15.

DESCRIPTION OF SYMBOLS 15 ... Pick part 39 ... Button 45 ... Swing axis 47 ... Outer surface 53 ... Pick part surface 55 ... Pick part back surface 57 ... Pick part peripheral edge 61 ... Switching member (peripheral member)
67 ... Slide position 75 ... Thumb turn center axis 77 ... Click member (elastic click claw)
79 ... Click member (click groove)
83 ... Switching member (slide rod)
113 ... Click member (click spring)
115 ... Click member (click projection)

Claims (9)

A button for releasing the restriction of the internal thumb turn rotation regulating mechanism by being protruded and pushed on the outer surface of the knob;
A portion is exposed on the outer surface and is slidable in a direction orthogonal to the push-in direction of the button and provided at the knob, and engages the pushed-in button at one slide position and pushes the button A thumb turn structure comprising: a switching member held in position. The thumb turn structure according to claim 1,
A pair of the buttons for releasing the restriction of the thumb turn rotation restricting mechanism by being pushed at the same time is provided on the knob,
A thumb turn structure characterized in that a pair of the buttons into which the switching members are simultaneously pressed are held in a pressed position. A thumb-turn structure according to claim 2,
The knob is formed in a plate shape,
One of the pair of buttons is disposed on the knob surface,
The thumb turn structure, wherein the other of the pair of buttons is disposed on the back surface of the knob. A thumb turn structure according to any one of claims 1, 2 and 3,
A thumb turn structure characterized in that a sliding direction of the switching member is a direction along a thumb turn rotation center axis. A thumb turn structure according to any one of claims 1, 2 and 3,
A thumb turn structure characterized in that the sliding direction of the switching member is perpendicular to the thumb turn center axis. The thumb turn structure according to claim 3 or 4,
A thumb turn structure, wherein the switching member is a peripheral member constituting the periphery of the knob. The thumb turn structure according to claim 5,
A thumb turn structure, wherein the switching member has a swing shaft for swinging the button in the push-in direction. The thumb turn structure according to any one of claims 1 to 7,
A thumb turn structure characterized in that a click member for moving and urging the switching member to one sliding position and the other sliding position is provided on the knob and the switching member. A thumb turn structure according to any one of claims 1 to 8,
A thumb turn structure characterized in that the switching member includes a phosphorescent material and is capable of emitting light.

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