JP2010047994A - Emergency entrance window equipped with handle device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency entrance window equipped with a handle device which is provided with a lock structure, can unlock the lock structure by only an operation of an external handle, and can further unlock the lock structure to promptly open a paper sliding door. <P>SOLUTION: The emergency entrance window is equipped with an internal and external handles 5, 6 and the lock structure 7. The handle shaft 33 of the external handle 6 and the rock shaft 67 of the lock structure 7 are arranged so as to face each other while holding a conversion mechanism between, allowing both shafts 33, 67 to be alternatively connected to the conversion mechanism. The external handle 6 is provided with a cam mechanism for performing the retractable operation of the handle shaft 33. The lock structure 7 can be switched by a key body 68 either to a locked state or to an unlocked state. The locked lock shaft 67 is forwardly operated to be interlocked by the conversion mechanism. The handle shaft 33 is moved forward by the first-half rotation movement of the external handle 6 to release the interlocked state between the lock shaft 67 and the conversion mechanism, and also to interlock them simultaneously. A slide frame 4 can be slid by the latter-half rotation movement of the external handle 6 to release the lock structure. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an emergency entrance window provided with a handle device that can be locked from the inside and can be released from the outside in the same manner as a normal window opening / closing operation to enter a room.

  The basic structure of a handle device for an emergency entrance is known from Patent Document 1. In this case, the emergency entrance can be opened by unlocking the lock structure with the inner handle, and the emergency entrance can be opened by unlocking the lock structure with the outer handle in an emergency such as a fire. When the outer handle is unlocked, the inner handle rotates in the unlocking direction in conjunction with the outer handle. By the way, in this type of commercially available handle device, the inner handle is often detachable, and its use is often restricted. However, in this type of detachable handle structure, the inner handle is handled during operation. It has been pointed out that there is a problem with safety because it may fall off the shaft.

  In the handle device of the present invention, when the outer handle is rotated in a state where the lock shaft of the lock structure is engaged with the pinion, the handle shaft advances and slides to push the lock shaft out of the engagement hole and separate from the pinion. The handle shaft engages with the engagement hole of the pinion. As described above, Patent Document 2 discloses that a pair of opposed shafts are selectively engaged with an engagement hole of a pinion.

  There, the shaft on the inner handle side is advanced and biased by a spring, and is always engaged with the engagement hole of the locking frame. The shaft on the outer handle side is arranged opposite to the protruding end of the shaft on the inner handle side, and by rotating the outer handle, the shaft on the outer handle side enters the engagement hole of the locking frame, The shaft is pushed out of the engagement hole of the locking frame against the urging force of the spring and separated. As described above, the reason why the pair of shafts are selectively engaged with the object to be engaged is that the rotation operation of the inner handle is converted into the reciprocating operation by the screw shaft and the female screw body meshing with the screw shaft. This is because the inner handle cannot be rotated together with the outer handle when the lock structure is unlocked.

Japanese Patent No. 3203044 (page 3, column 5, lines 15-19, FIG. 2) Japanese Utility Model Publication No. 08-6989 (page 3, column 6, lines 33-48, FIG. 3)

  Since the emergency entrance is provided on the third floor or more of the building, there is a risk of falling if the handle device is opened from the indoor side by mischief or the like. In order to prevent such an accident, a lock structure for restricting the opening operation of the inner handle is added to the emergency entrance handle device. Thus, in a handle device to which a lock structure is added, after the lock structure is unlocked with a dedicated handle or lever, the outer handle must be opened, and the emergency entrance is opened. Extra time is required. In addition, there is no problem if a dedicated handle is always provided at the emergency entrance, but if not, the plate glass must be broken and entered, and there is a risk that it will take time to enter from the emergency entrance. There are also safety issues.

  The object of the present invention is a handle device having a lock structure, but the lock structure can be unlocked only by operating the outer handle, and the shoji can be opened by unlocking the lock structure. An object of the present invention is to provide an emergency entrance window provided with a handle device that can be opened easily and quickly compared with the unlocking operation.

  The emergency entrance window equipped with the handle device according to the present invention includes a slide frame 4 that is reciprocally slid by the inner and outer handles 5 and 6 via the handle shafts 12 and 33 and the conversion mechanism, the opening frame 1 and the slide. A lock structure provided between the frame 4 and a lock structure 7 that locks and holds the slide frame 4 so as not to slide is provided. The outer handle 6 is provided with a cam mechanism for operating the handle shaft 33 between the standby position and the connecting position. The handle shaft 33 of the outer handle 6 and the lock shaft 67 of the lock structure 7 are disposed to face each other with the conversion mechanism interposed therebetween, and can be selectively connected to the conversion mechanism. The lock structure 7 is configured to be switchable between a locked state and an unlocked state by a detachable key body 68, and in the locked state, the lock shaft 67 can be advanced to a position where it engages and connects with the conversion mechanism. Therefore, the handle shaft 33 advances to the connecting position by the rotation of the first half of the outer handle 6 and can be engaged and connected to the conversion mechanism while releasing the engagement state between the lock shaft 67 and the conversion mechanism. 6 is characterized in that the lock structure can be unlocked by the sliding operation of the slide frame 4 via the conversion mechanism by the second half rotation operation.

  Specifically, the slide frame 4 is guided and supported by the strip-shaped base 3 so as to be slidable in a reciprocating manner, and the conversion mechanism is fixed at two upper and lower portions of the base 3. The conversion mechanism includes a holder 19 that is fixed to the base 3, a pinion 20 that is rotatably supported by the holder 19, and a rack 21 that is fixed to the slide frame 4. The pinion 20 is formed with a handle shaft 12 and a connection hole 26 for engaging and connecting the handle shaft 33 and the lock shaft 67.

  The outer handle 6 includes a handle lever 29, a handle case 30, a guide boss 31 attached to the inner surface of the handle case 30, a cam cylinder 32 rotatably supported by the guide boss 31, and an inside of the cam cylinder 32. It includes a handle shaft 33 to be disposed and a cam mechanism for moving the handle shaft 33 in and out. The cam cylinder 32 is coupled to the outer handle lever 29 so as to be able to rotate together. The cam mechanism includes a cam groove 40 formed in the cam cylinder 32, a passive pin 46 that is fixed to the handle shaft 33 and operated to be moved in and out of the cam groove 40, and a guide groove 37 of the guide boss 31 that is fixed to the handle shaft 33. It is comprised with the rotation stop pin 47 guided only by slide. Continuing from the guide groove 37, a notch 38 that allows the rotation of the locking pin 47 is formed in the guide boss 31.

  The lock structure 7 includes a lock case 60, a spring 63 and a switching tool 64 accommodated in a boss 61 provided inside the lock case 60, a guide boss 65 engaged and mounted on the inner surface of the lock case 60, and a guide boss A cam cylinder 66 rotatably supported by 65, a lock shaft 67 rotatably accommodated in the cam cylinder 66, and a key for switching the cam cylinder 66 between a locked state and an unlocked state via a switching tool 64. A body 68 and a cam mechanism are included. The cam mechanism includes a cam groove 83 formed on the peripheral surface of the cam cylinder 66, a passive pin 88 fixed to the lock shaft 67 and engaged with the cam groove 83, and a guide of the guide boss 65 fixed to the lock shaft 67. The rotation pin 89 is guided by the groove 81 so that only sliding is possible. Therefore, when the handle shaft 33 separates the lock shaft 67 from the conversion mechanism against the urging force of the spring 63, the cam cylinder 66 and the switching tool 64 are returned to the unlocked state by the separation slide operation of the lock shaft 67. Let

  In the present invention, the lock structure 7 is provided separately from the inner handle 5 and the outer handle 6 so that the lock structure can be prevented from being unnecessarily unlocked by the inner handle 5. In addition, in an emergency such as a fire, the outer handle 6 is rotated to switch the lock structure 7 to the unlocked state, and the outer handle 6 is further rotated to unlock the lock structure. Therefore, according to the handle device of the present invention, the labor for opening the window 2 can be greatly reduced, and for example, entry from an emergency entrance can be performed quickly. In addition, the lock structure 7 can be unlocked only by operating the outer handle 6, and the lock structure 7 can be unlocked to open the window 2. Therefore, a dedicated handle and lever for unlocking the lock structure 7 are prepared. Therefore, the window 2 can be opened quickly and smoothly.

  According to the conversion mechanism using the pinion 20 and the rack 21 as the conversion elements, the pinion 20 is rotated by the same amount as the rotation amount of the inner and outer handles 5 and 6, and the slide frame 4 is rotated by the rotation amount of the inner and outer handles 5 and 6. The sliding operation can be performed evenly in conformity with, for example, the unlocking operation of the lock structure with the inner handle 5 or the outer handle 6 smoothly and accurately compared to the case where the rotary motion is converted into the reciprocating motion with a partially rotating lever. Yes. When the conversion mechanism for the inner handle 5 and the conversion mechanism for the outer handle 6 are shared, the proportion of the components of the handle device occupied by the common parts can be increased to save the cost required for manufacturing the handle device. .

  When the handle lever 29 is rotated, the handle shaft 33 is moved back and forth by a cam mechanism provided between the cam cylinder 32 and the handle shaft 33 until the handle shaft 33 moves forward to a predetermined position. According to the outer handle 6 that receives the stop pin 47 with the guide groove 37, the handle shaft 33 can be prevented from rotating until it engages with the connecting hole 26 of the pinion 20. 33 can be reliably engaged and connected to the connecting hole 26 of the pinion 20. At this time, when the lock shaft 67 is engaged with the connection hole 26 of the pinion 20, the lock shaft 67 can be forcibly pushed out from the connection hole 26, and only the handle shaft 33 can be inserted and engaged with the connection hole 26. . Therefore, the lock shaft 7 can be reliably unlocked by the outer handle 6 by eliminating the simultaneous engagement of the handle shaft 33 and the lock shaft 67 with the connecting hole 26. In addition, since the guide boss 31 is provided with a notch 38 that allows the rotation of the stopper pin 47 continuously to the guide groove 37, the handle shaft 33 is moved together with the handle lever 29 after the handle shaft 33 is advanced to a predetermined position. By rotating, the lock structure can be smoothly unlocked via the slide frame 4.

  When the cam cylinder 66 is rotated by the key body 68 via the switching tool 64, the lock shaft 67 is moved back and forth by a cam mechanism provided between the cam cylinder 66 and the lock shaft 67, and the lock shaft 67 is moved to a predetermined position. According to the lock structure 7 that receives the locking pin 89 with the guide groove 81 until it moves forward to the position, the lock shaft 67 is restricted from rotating until it engages with the connecting hole 26 of the pinion 20. Thus, the lock shaft 67 that has been advanced can be reliably engaged and connected to the connection hole 26. Further, since the switching tool 64, the cam cylinder 66, and the lock shaft 67 are supported by the spring 63, the retraction operation when the lock shaft 67 is forcibly pushed out from the coupling hole 26 by the handle shaft 33 is performed. Can be absorbed by the spring 63, and the replacement operation of the handle shaft 33 and the lock shaft 67 with respect to the connecting hole 26 can be performed smoothly. Further, since the cam cylinder 66 and the switching tool 64 are returned to the unlocked state by the separation slide operation when the lock shaft 67 is separated from the connection hole 26, the handle lever 29 after unlocking is returned to the locking direction. Even so, the lock structure 7 does not return to the locked state again, and therefore, after the lock structure 7 is unlocked, the window 2 can be maintained in a state that can be freely opened and closed.

(Example) FIGS. 1-12 shows the Example of the window for emergency entrances provided with the handle apparatus based on this invention. In FIG. 2, reference numeral 1 denotes an emergency entrance opening frame, and reference numeral 2 denotes a window (shoji) that opens and closes the opening frame. The rectangular window 2 can be opened and swung toward the inside of the building via a hinge 3 provided on one side thereof, and the closed state is maintained by a handle device provided between the window 2 and the opening frame 1. it can.

  In FIG. 3, the handle device is provided on a strip-like base 3 fixed to the side end surface of the window 2, on a strip-like slide frame 4 that is guided and supported by the base 3 so as to be slidable up and down, and inside and outside the window 2. The inner handle 5 and the outer handle 6 that are used, the conversion mechanism that converts the rotational movements of the inner and outer handles 5 and 6 into a reciprocating operation and transmits the same to the slide frame 4, and the inner handle 5 are disposed on the inner surface of the window frame so as to face the outer handle 6. And a lock structure provided between the opening frame 1 and the slide frame 4. Locking pins 8 are fixed to the upper and lower ends of the slide frame 4. The inner handle 5 is disposed below the middle part of the window 2, and the outer handle 6 and the lock structure 7 are disposed above the inner handle 5 so as to face the inside and outside.

  In FIG. 4, the inner handle 5 includes a handle lever 10, a handle case 11 made of a plastic molded product, a handle shaft 12, a joint ring 13 that rotates together with the handle shaft 12, and a click mechanism. The lever boss 10a of the handle lever 10 is fitted and mounted in a boss hole 11a provided in the center of the handle case 11, and is rotatably supported. One end of the handle shaft 12 is fixed to the handle lever 10 via the joint ring 13, and the other end is engaged and connected to the pinion 20 of the conversion mechanism.

  The click mechanism includes an elastically deformable joint body (not shown) that is integrally formed with the handle case 11 and is supported at both ends, and the previous joint ring 13. Four groove grooves 15 are formed in the peripheral surface of the pressure ring 13 so that every time the handle lever 10 is rotated by 90 degrees, a protrusion provided on the center inner surface of the pressure body 15 is the groove groove 15. And the handle lever 10 is held in position. The pulsating body has the same structure as another pulsating body 54 described later.

  4 and 5, the conversion mechanism includes a pair of holders 19 that are caulked and fixed to the base 3, a pinion 20 disposed between the holders 19, and a rack 21 that is fixed to the slide frame 4. A bearing hole 22 is opened in the opposing wall surface of the holder 20, and the pinion 21 is rotatably supported by the bearing hole 22 of one holder 20. Screw insertion holes and screw holes are formed on both sides of the bearing hole 22. The pinion 21 is formed in a fan shape, five gear teeth 25 are formed on the circumferential surface of the circular arc, and a square connection hole 26 is formed in the center of the circular wall supported by the bearing hole 22. The conversion mechanism to which the handle shaft 12 of the inner handle 5 is connected and the conversion mechanism to which the handle shaft 33 of the outer handle 6 are connected have the same structure.

  In FIG. 6, the outer handle 6 includes a handle lever 29, a handle case 30 made of a plastic molded product, a guide boss 31 engaged and mounted on the inner surface of the handle case 30, and a cam rotatably supported by the guide boss 31. The cylinder 32, the handle shaft 33 rotatably accommodated in the cam cylinder 32, a joint ring 34 engaged and connected to the lever boss 29a of the handle lever 29, a cam mechanism, a click mechanism, and the like. The lever boss 29a of the handle lever 29 is fitted and mounted in a boss hole 30a provided in the center of the handle case 30, and is rotatably supported.

  The guide boss 31 is made of a plastic molded product integrally provided with a square base at one end of the boss, and has connecting legs 36 that are engaged with and mounted on the handle case 30 at four positions on the inner surface of the base. On the opposing wall of the boss, there are formed a guide groove 37 that guides a later-described anti-rotation pin 47 so as to be slidable and a notch 38 that allows the anti-rotation pin 47 to rotate. The notch 38 is formed in a fan shape continuously with the guide groove 37, whereby the rotation pin 47 and the handle shaft 33 can be displaced by 90 degrees within the range of the notch 38.

  The cam cylinder 32 is made of a metal cylinder, and a pair of spiral cam grooves 40 are formed on the opposing surfaces of the cylinder wall. Four passive claws 41 are formed at equal intervals on the cylinder end of the cam cylinder 32 facing the lever boss 29a of the handle lever 29, and a relief recess 42 for receiving the rotation stop pin 47 is formed on the other cylinder end. Notches are formed. As shown in FIG. 7, a pair of drive protrusions 43 project from the end face of the lever boss 29 a, and when the drive protrusions 43 engage with the passive claws 41, the handle lever 29 rotates. The operation can be transmitted to the cam cylinder 32.

  The handle shaft 33 is a metal shaft having a quadrangular cross section, and a plastic bush 45 is fitted on the outer surface thereof. The handle shaft 33, the cam cylinder 32, and the guide boss 31 are assembled as follows. First, the handle shaft 33 to which the bush 45 is attached is fitted into the cam barrel 32, and the passive pin 46 is driven through the cam shaft 40 in a penetrating manner so that the handle shaft 33 and the cam barrel 32 are integrated. To do. The cam cylinder 32 in this state is inserted into the boss hole of the guide boss 31 and loaded, and the rotation pin 47 is driven through the notch 38 into the bush 45 and the handle shaft 33 in a penetrating manner.

  In the above assembled state, the locking pin 47 is received at the back end of the guide groove 37, or the bush 45 is received at the end 48 of the boss hole of the guide boss 31, so that the handle shaft 33 and the cam cylinder 32 are guided by the guide boss. There is no separation from 31 and the three can be treated as unit parts. By assembling the guide boss 31 in this state to the handle case 30, the cam cylinder 32 can be engaged and connected to the drive protrusion 43 of the lever boss 29a. The cam groove 40, the passive pin 46, and the locking pin 47 constitute a cam mechanism.

  The joint ring 34 is a plastic molding that integrally includes a circular ring portion, a single-character frame portion 51 that crosses the ring portion along the diameter, and a square shaft 52 that projects from one side of the frame portion 51. It consists of goods. The square shaft 52 is inserted into and engaged with an engagement hole 29b formed in a recess in the end face of the lever boss 29a, whereby the moderation ring 34 can rotate along with the handle lever 29. The click mechanism includes an elastically deformable joint body 54 that is molded integrally with the handle case 30 and supported at both ends, and the joint ring 34. As shown in FIG. 7, four circumferential grooves 55 are formed in the circumferential surface of the rotational ring 34 so as to be provided on the central inner surface of the rotational body 54 every time the handle lever 29 is rotated 90 degrees. The protrusion 56 falls into and engages with the joint groove 55 to hold the handle lever 29 in position. The joint body provided integrally with the handle case 11 of the inner handle 5 is formed in the same structure as the joint body 54, and the same projection as the projection 56 is provided integrally.

  In FIG. 9, the lock structure 7 includes a lock case 60 made of a plastic molded product, a display frame 62 housed in a boss 61 provided inside the lock case 60, a spring 63, a switching tool 64, and an inner surface of the lock case 30. A cam boss 65 that is engaged with the cam boss 65, a cam cylinder 66 that is rotatably supported by the guide boss 65, a lock shaft 67 that is rotatably accommodated inside the cam cylinder 66, and a switching tool 64. The cylinder 66 includes a key body 68 (see FIG. 12) that switches between a locked state and an unlocked state, a cam mechanism, a click mechanism, and the like. A key opening 69 for inserting the key body 68 is opened at the outer end of the boss 61.

  The display frame 62 is formed of a circular ring, and an interlocking leg 71 protrudes from the opposing peripheral surface, and indicators 72 indicating the locked state and the unlocked state are displayed in different colors on the outer surface of the ring portion. The index 72 indicating the unlocked state is formed with a blue seal, and the index 72 indicating the locked state is formed with a red seal. The spring 63 is formed of a compression coil spring, and urges the switching tool 64 to move away from the key opening 69. A display window 70 for visually recognizing the index 72 is opened at the protruding end of the lock case 60.

  The switching tool 64 is formed in a multistage boss shape, and an operation shaft 74 having a hexagonal cross section projects from the center of the boss on the side received by the spring 63. A pair of engaging grooves 75 that engage with the interlocking legs 71 and a movement protrusion 76 are formed on the peripheral surface of the large-diameter portion of the boss. A click mechanism is configured by the joint protrusion 76 and the joint groove 77 formed in the four positions on the inner surface of the boss 61 of the lock case 60. Each time the switching tool 64 is switched between the locked state and the unlocked state by the key body 68, the movement projection 76 falls into and engages with the movement groove 77 so that the switching state of the switching tool 64 can be maintained (see FIG. 8). .

  The guide boss 65 is made of a plastic molded product integrally provided with a rectangular base at one end of the boss, and has connecting legs 80 protruding from the two inner surfaces of the base. A guide groove 81 is formed on the opposing wall of the boss so as to guide a later-described anti-rotation pin 89 so that it can only slide.

  The cam cylinder 66 is the same component as the cam cylinder 32 described above, and a pair of spiral cam grooves 83 are formed on the opposing surfaces of the cylinder wall. Four passive claws 84 are formed at equal intervals on the tube end portion of the cam tube 66 facing the switching tool 64, and a relief recess 85 for receiving the locking pin 89 is formed on the other tube end portion. It is. As shown in FIG. 8, the passive claw 84 is engaged with an engagement frame 86 provided on the switching tool 64, so that the cam cylinder 66 can rotate along with the switching tool 64.

  The lock shaft 67 is a metal shaft having a quadrangular cross section, and a plastic bush 87 is fitted on the outer surface thereof. The lock shaft 67, the cam cylinder 66, and the guide boss 65 are assembled as follows. First, the lock shaft 67 fitted with the bush 87 is fitted into the cam cylinder 66, and the passive pin 88 is driven through the cam groove 83 in a penetrating manner so that the lock shaft 67 and the cam cylinder 66 are integrated. To do. The cam cylinder 66 in this state is inserted and loaded into the boss hole of the guide boss 65, and the turning pin 89 is driven through the guide groove 81 into the bush 87 and the lock shaft 67 in a penetrating manner.

  In the above assembled state, since the locking pin 89 is received by the back end and the boss end of the guide groove 81, the lock shaft 67 and the cam cylinder 66 are not separated from the guide boss 65, and the three are handled as unit parts. be able to. By assembling the guide boss 65 in this state to the lock case 60, the cam cylinder 66 can be connected to the switching tool 64 so as to be interlocked. The cam mechanism is constituted by the cam groove 83, the passive pin 88, and the locking pin 89.

  As shown in FIG. 12, the key body 68 is formed of a plastic molded product integrally including a knob portion 91 and a shaft portion 92, and is connected to the projecting end of the shaft portion 92 by being inserted into the operation shaft 74 of the switching tool 64. A hole 93 is formed. The key body 68 is stored by the administrator at the emergency entrance, and in a normal state, after the switching tool 64 is switched to the locked state, the key body 68 is removed from the lock structure 7 and stored in a predetermined storage location. As shown in FIG. 3, the lock structure includes a lock pin 8 fixed to the upper and lower ends of the slide frame 4 and an inverted L-shaped metal fitting 95 fixed to the opening frame 1 and engaged with the lock pin 8. Constitute.

  The inner handle 5 is assembled in a state in which the handle case 11 is in contact with the inner surface of the vertical frame of the window 2, and screws 18 inserted through the handle case 11 are screwed into the screw plate 17 (see FIG. 10) inside the vertical frame. This is fixed to the window 2. Further, as shown in FIG. 1, the outer handle 6 and the lock structure 7 are formed by screwing screws 98 and 99 inserted into the handle case 30 and the lock case 60 into the screw holes of the holder 19 and the screw bosses 100. 2 and fixed to the conversion mechanism. The outer surfaces of the handle cases 11 and 30 and the lock case 60 are covered with a metallic decorative cap. The base 3 is fixed to the side end surface of the vertical frame of the window 2 with screws 101.

  Next, the operation of the inner and outer handles 5 and 6 and the lock structure 7 will be described. As shown in FIG. 10, the handle levers 10 and 29 of the inner and outer handles 5 and 6 in the normal state extend below the handle cases 11 and 28, respectively. In this state, as shown in FIG. 3, the locking pin 8 is locked to the metal fitting 95, and therefore the window 2 cannot be opened unless the inner handle 5 is opened.

  In a state where the window 2 is locked with the lock structure, when the switching tool 64 is rotated clockwise by the key body 68 and switched to the locked state, the cam cylinder 66 rotates along with the switching tool 64, and the cam The groove 83 advances the passive pin 88 toward the pinion 20. Therefore, the lock shaft 67 engages with the connecting hole 26 of the pinion 20 as shown in FIG. The protruding end of the lock shaft 67 in this state is opposed to the protruding end of the handle shaft 33 of the outer handle 6 with a slight gap. Further, since the lock shaft 67 is received and engaged in the guide groove 81 of the guide boss 65 via the rotation stop pin 89, the lock shaft 67 does not rotate. If an attempt is made to rotate the inner handle 5 in this state, the force is transmitted to the rack 21 and the pinion 20 on the lock structure 7 side via the pinion 20 and the rack 21 on the inner handle 5 side and the slide frame 4. . However, since the lock shaft 67 is received and engaged in the guide groove 81 of the guide boss 65 via the anti-rotation pin 89 as described above, the inner handle 5 cannot be rotated and mischievous. The window 2 is not opened by such as. At the same time as the switching tool 64 is switched to the locked state, the display frame 62 rotates together with the red index 72 displayed through the viewing window 70.

  When the window 2 is to be cleaned, as shown in FIG. 12, the switching tool 64 is rotated by the key body 68 in the counterclockwise direction to switch to the unlocked state. Then, the cam cylinder 66 rotates along with the switching tool 64 and the cam groove 83 retracts the passive pin 88 away from the pinion 20, so that the lock shaft 67 comes out of the connection hole 26. In this state, as shown by an imaginary line in FIG. 2, when the inner handle 5 is rotated by 90 degrees in the counterclockwise direction, the pinion 20 is rotated by the handle shaft 33, and the slide frame is moved via the rack 21. 4 is moved downward. As a result, the engagement state between the locking pin 8 and the metal fitting 95 is released, so that the window 2 can be opened.

  In an emergency such as a fire, the outer handle 6 is rotated in the same direction as the opening direction of the inner handle 5. When the outer handle 6 is rotated downward by 90 degrees from a non-use state where the outer handle 6 extends downward, the cam cylinder 32 rotates along with the handle lever 29 and the cam groove 40 moves the passive pin 46 toward the pinion 20. To advance. Therefore, the handle shaft 33 pushes back the lock shaft 67 and the cam barrel 66 against the urging force of the spring 63 and is pushed out from the connecting hole 26 as shown in FIG. To engage with the connecting hole 26. That is, the lock state of the lock structure 7 can be released by the outer handle 6. At this time, since the locking pin 89 is received by the guide groove 81, the lock shaft 67 does not rotate, and the cam cylinder 66 retreats against the urging force of the spring 63. In the process of retracting the cam cylinder 66, the spring 63 is compressed and deformed to increase the spring force, and the cam groove 83 is pressed against the passive pin 88 by the repulsive force of the spring. Therefore, the cam cylinder 66 overcomes the engagement force between the joint protrusion 76 and the joint groove 77, rotates to the unlocked state side, and is reset as shown in FIG. Since the outer handle 6 and the inner handle 5 are connected via the slide frame 4, the pinion 20 and the rack 21, when the outer handle 6 rotates, the inner handle 5 also rotates simultaneously.

  When the handle lever 29 is rotated 90 degrees from the non-use state, the rotation stop pin 47 faces the notch 38 (see FIG. 11A). Therefore, when the handle lever 29 is continuously rotated 90 degrees in the same direction, the handle shaft 33 and the cam cylinder 32 are rotated to rotate the pinion 20 together with the rack 21 as shown in FIG. To slide the slide frame 4 downward. Therefore, the engagement state between the locking pin 8 and the metal fitting 95 can be released and the window 2 can be opened.

  As described above, according to the handle device of the present invention, the lock structure 7 is switched to the unlocked state and the handle shaft 33 is switched to the coupling position and engaged with the pinion 20 by the first half rotation of the outer handle 6. it can. Further, the lock structure can be unlocked by sliding the slide frame 4 via the conversion mechanism by the second half of the outer handle 6. Note that the unlocking of the lock structure 7 and the unlocking of the lock structure are performed continuously in the continuous turning operation of the handle lever 29, so that the user consciously turns the handle lever 29 by 90 degrees. There is no need to perform a moving operation, and the lock lever 29 can be unlocked and unlocked by a series of operations by simply turning the handle lever 29 in the standby state 180 degrees at a stroke.

  As described above, the handle device according to the present invention can switch the lock structure 7 to the unlocked state and unlock the lock structure only by rotating the outer handle 6 180 degrees from the non-use position. The time and effort for opening can be greatly reduced, and entry from the emergency entrance can be performed quickly. In addition, since it is not necessary to prepare a dedicated handle or lever for unlocking the lock structure, anyone can open the emergency entrance when necessary and can perform rescue operations and escape support for the victims.

  In the above embodiment, the lock structure 7 is unlocked when the outer handle 6 is turned 90 degrees, and the lock structure can be unlocked when the outer handle 6 is turned 90 degrees. The total rotation angle need not be 180 degrees, and can be set to an arbitrary angle. The lock structure 7 does not have to be inserted and removed from the lock shaft 67 by a cam mechanism, and may be a structure capable of holding each switching state by simply pushing and pulling to switch between the locked state and the unlocked state. The conversion mechanism does not need to perform the operation conversion between the pinion 20 and the rack 21, and can convert the rotational motion into a reciprocating motion with a partially rotating lever. The handle shafts 12 and 33 and the lock shaft 67 do not have to have a square cross section, and may have a non-circular cross section. The handle device can be incorporated in an upper frame or a lower frame other than the vertical frame of the window 2. In the above embodiment, the case where the window 2 can swing open toward the inside of the building has been described. However, the window 2 may swing open toward the outside of the building.

  The operation shaft 74 can be protruded from the key opening 69 in a state where the operation shaft 74 is protruded greatly outward from the end surface on the outer surface side of the switching tool 64 and the lock structure 7 is unlocked by the outer handle 6. . In that case, by visually recognizing that the operation shaft 74 protrudes from the key opening 69, it can be known that the outer handle 6 is operated in the opening direction. In the above-described embodiment, the case where the tension of the spring 63 is set to be weaker than the engagement force between the movement protrusion 76 and the movement groove 77 has been described, but compared to the previous engagement force. When the tension of the spring 63 is set high, the cam cylinder 66 can be rotated to the unlocked state to be reset in conjunction with the operation of the lock shaft 67 retracting toward the key opening 69. it can.

  The handle device of the present invention is suitable for application to an emergency entrance, but may be applied as a handle device for a door that separates a building in a nursing home from a garden. In that case, if the facility user is accidentally locked out of the room, the outside handle can be operated to return to the outside. Further, the opening of the door can be restricted due to maintenance or the like, and the present invention can be applied to a place where there is a risk of being trapped when working outside the door.

It is the sectional view on the AA line in FIG. It is a front view of the state which looked at the window from the room inner side. It is a side view of a handle device. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is a vertical front view which shows the detailed structure of a conversion mechanism. It is the disassembled front view which fractured | ruptured a part of outer handle. It is CC sectional view taken on the line in FIG. It is the DD sectional view taken on the line in FIG. It is the disassembled front view which fractured | ruptured a part of lock structure. It is a vertical side view which shows the lock structure of a locked state. It is operation | movement explanatory drawing which shows rotation operation | movement of the first half and the latter half of an outer handle. It is operation | movement explanatory drawing which shows the unlocking movement operation | movement by a key body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening frame 3 Base 4 Slide frame 5 Inner handle 6 Outer handle 7 Lock structure 12 Handle shaft 19 Holder 20 Pinion 26 Connecting hole 29 Handle lever 30 Handle case 31 Guide boss 32 Cam cylinder 33 Handle shaft 38 Notch 40 Cam groove 46 Passive pin 47 Locking pin 60 Lock case 61 Boss 63 Spring 64 Switching tool 65 Guide boss 66 Cam cylinder 67 Lock shaft 68 Key body 81 Guide groove 83 Cam groove 88 Passive pin 89 Locking pin

Claims (4)

Provided between the handle frame (12, 33) and the slide frame (4) which is reciprocally slid by the inner and outer handles (5, 6) via the conversion mechanism and the opening frame (1) and the slide frame (4). And a lock structure (7) for holding the slide frame 4 in a non-slidable manner.
The outer handle (6) is provided with a cam mechanism for moving the handle shaft (33) between the standby position and the coupling position.
The handle shaft (33) of the outer handle (6) and the lock shaft (67) of the lock structure (7) are disposed opposite to each other with the conversion mechanism interposed therebetween, and can be selectively connected to the conversion mechanism.
The lock structure (7) is configured to be switchable between a locked state and an unlocked state by a detachable key body (68), and in the locked state, the lock shaft (67) is advanced to a position where it is engaged and connected to the conversion mechanism. Can operate,
By rotating the first half of the outer handle (6), the handle shaft (33) advances to the connection position, and the engagement state between the lock shaft (67) and the conversion mechanism can be released and engaged with the conversion mechanism. ,
An emergency entrance window having a handle device characterized in that the lock structure can be unlocked by sliding the slide frame (4) through the conversion mechanism by the second half rotation of the outer handle (6). . The slide frame (4) is guided and supported by the strip plate base (3) so as to be slidable in a reciprocating manner, and the conversion mechanism is fixed at the upper and lower portions of the base (3).
The conversion mechanism includes a holder (19) fixed to the base (3), a pinion (20) rotatably supported by the holder (19), and a rack (21) fixed to the slide frame (4). Consists of
The handle device according to claim 1, wherein the pinion (20) has a handle shaft (12) and a connection hole (26) for engaging and connecting the handle shaft (33) and the lock shaft (67). There is an emergency entrance window. An outer handle (6) is rotatably supported by a handle lever (29), a handle case (30), a guide boss (31) mounted on the inner surface of the handle case (30), and a guide boss (31). A cam cylinder (32), a handle shaft (33) disposed inside the cam cylinder (32), and a cam mechanism for moving the handle shaft (33) back and forth,
The cam cylinder (32) is connected to the outer handle lever (29) so as to be rotatable together,
The cam mechanism includes a cam groove (40) formed in the cam cylinder (32), a passive pin (46) fixed to the handle shaft (33) and operated to be moved in and out of the cam groove (40), and a handle shaft (33). ) And a non-rotating pin (47) guided so as to be slidable only by the guide groove (37) of the guide boss (31).
The handle device according to claim 1 or 2, further comprising a notch (38) formed in the guide boss (31) which allows the rotation of the locking pin (47) to be continuous with the guide groove (37). Emergency entrance window. The lock structure (7) includes a lock case (60), a spring (63) and a switching tool (64) housed in a boss (61) provided inside the lock case (60), and a lock case (30). A guide boss (65) engaged and mounted on the inner surface, a cam cylinder (66) rotatably supported by the guide boss (65), and a lock shaft (not shown) rotatably accommodated in the cam cylinder (66). 67), a key body (68) for switching the cam cylinder (66) between the locked state and the unlocked state via the switching tool (64), and a cam mechanism,
The cam mechanism includes a cam groove (83) formed on the peripheral surface of the cam cylinder (66), a passive pin (88) fixed to the lock shaft (67) and engaged with the cam groove (83), and a lock shaft. (67) and a rotation-preventing pin (89) guided so as to be slidable only by the guide groove (81) of the guide boss (65).
In a state where the handle shaft (33) separates the lock shaft (67) from the conversion mechanism against the biasing force of the spring (63), the cam cylinder (66) and the switching tool are separated by the separation slide operation of the lock shaft (67). An emergency entrance window comprising the handle device according to claim 1, wherein (64) can be returned to the unlocked state.

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