JP2023169559A - Fitting locking device - Google Patents

Abstract

To provide a fitting locking device capable of allowing a user to perform hands-free locking/unlocking.SOLUTION: The fitting locking device for locking/unlocking a sash provided to a fitting that opens/closes an opening by sliding the sash stored in a frame to move in a lateral direction includes: a locking device body provided to the sash for performing a locking/unlocking operation by moving a moving member up and down up and down; a foot operation part that is provided movably vertically in the bottom of the sash at the indoor side; and a connecting member that connects the moving member and the foot operation part. The foot operation part is configured so as to lock/unlock the locking device body by the foot of an operator.SELECTED DRAWING: Figure 13

Description

The present disclosure relates to a locking device for fittings.

BACKGROUND ART Conventionally, there has been known a locking device for fittings that unlocks by pushing down an operating member provided on a stile of a shoji door from the indoor side (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2009-155974

The operating members of locking devices for fittings come into contact with people's hands every time they lock or unlock the lock, so if the operator's hands have bacteria or viruses on them, the bacteria or viruses may be transferred to other people through the operating members. There is a risk of infection.

Furthermore, in the case of an operator who is carrying luggage in both hands or an operator who is handicapped, it may be extremely difficult to perform the locking/unlocking operation.

An object of the present disclosure is to provide a locking device for fittings that can be locked and unlocked without using hands.

The fitting of the present disclosure is a locking device for a fitting that is provided in a fitting that opens and closes an opening by sliding a shoji housed in a frame in the lateral direction, and that locks and unlocks the shoji. a lock device main body that performs a locking/unlocking operation by vertically moving a movable member; a foot operating section that is vertically movably provided at the bottom of an indoor side finding surface of the shoji; the moving member and the foot operating section; and a connecting member for connecting the locking device and the locking device.

FIG. 3 is a front view of the fittings viewed from the indoor side. 2 is a longitudinal cross-sectional view taken along line AA in FIG. 1. FIG. 2 is a cross-sectional view taken along line BB in FIG. 1. FIG. It is a perspective view showing the foot operation part of the locking device for fittings. It is a figure showing the internal structure of the locking device main body at the time of locking operation of the locking device for fittings. It is a figure showing the internal structure of the locking device main body at the time of unlocking operation of the locking device for fittings. It is a perspective view which shows the spur gear for a guide, and a trigger of a locking device for fittings. It is a perspective view showing a large-diameter spur gear and a small-diameter spur gear of the locking device for fittings. FIG. 3 is a view of the main body of the locking device provided in the stile of the internal shoji screen, viewed from the outside. FIG. 2 is a view of the receiver provided on the stile of the outer shoji screen, viewed from the outside. FIG. 3 is an exploded perspective view showing the mounting structure of the foot operation section. It is a figure which shows the holding release state of the latch member provided in the foot operation part. It is a figure which shows the holding state of the latch member provided in the foot operation part. It is a figure showing the usage state of fittings. It is a figure which shows the unlocking operation of the locking device for fittings by a foot operation part. FIG. 7 is a perspective view showing another embodiment of the foot operation section. FIG. 7 is a perspective view showing another embodiment of the foot operation section. FIG. 7 is a perspective view showing another embodiment of the foot operation section. FIG. 7 is a perspective view showing another embodiment of the foot operation section. FIG. 7 is a perspective view showing another embodiment of the foot operation section.

Embodiments of the present disclosure will be described in detail below with reference to the drawings. The fitting shown in this embodiment is a double-sliding window 1 that opens and closes an opening in a building frame using an inner shoji 3 and an outer shoji 4.

In the arrow shown in the figure, the direction along X1-X2 is the indoor/outdoor direction of the double sliding window 1. The X1 direction indicates the outdoor side of the double sliding window 1, and the X2 direction indicates the indoor side of the double sliding window 1. FIG. 1 is a diagram of a double-sliding window 1 viewed from the indoor side. The top and bottom of each figure correspond to the top and bottom of the double sliding window 1 along the vertical direction. In the double-sliding window 1, the facing surfaces are surfaces facing the outdoor side and the indoor side, respectively. In the double-sliding window 1, the viewing surface is a surface that is perpendicular to the viewing surface and extends in the indoor-outdoor direction. In the double-sliding window 1, the lateral direction and the left-right direction refer to directions along the movement direction of the inner shoji 3 and the outer shoji 4 when opening and closing. The left-right direction is based on the state in which the sliding window 1 is viewed from the indoor side, and the right hand side of the observer is defined as the right, and the left hand side is defined as the left.

The double-sliding window 1 includes a frame 2 that is attached to an opening of a building frame, and an inner shoji 3 and an outer shoji 4 that are slidably housed inside the frame 2. The frame body 2 is constructed by framing an upper frame 21, a lower frame 22, and left and right vertical frames 23 into a rectangular shape. As shown in FIG. 2, an indoor side rail 211 and an outdoor side rail 212 protrude downward from the prospective surface of the upper frame 21. An indoor side rail 221 and an outdoor side rail 222 protrude upward from the prospective surface of the lower frame 22.

The inner shoji 3 is arranged on the indoor side inside the frame 2. In the inner shoji 3, a face material 35 such as glass is housed inside a frame body 30 which is made up of an upper stile 31, a lower stile 32, a door stile 33, and a matching stile 34 arranged in a rectangular shape. As shown in FIGS. 2 and 3, the matching stile 34 of the inner shoji 3 has a sill main body 341 in which the facing material 35 is stored, and a sill 341 that is the same as the sill main body 341 on the indoor side of the sill main body 341. It has a matching stile extension part 342 that protrudes in width. The inner shoji 3 engages with the indoor side rail 211 of the upper frame 21 and the indoor side rail 221 of the lower frame 22, and can slide in the left and right direction along the extending direction of the upper frame 21 and the lower frame 22. provided.

The outer shoji 4 is arranged on the indoor side inside the frame 2. The outer shoji 4 is constructed by placing a face material 45 such as glass inside a stile body 40 that is made up of an upper stile 41, a lower stile 42, a door stile 43, and a matching stile 44 in a rectangular shape. The outer shoji 4 is engaged across the outdoor rail 212 of the upper frame 21 and the outdoor rail 222 of the lower frame 22, and is slidable in the left-right direction along the extending direction of the upper frame 21 and the lower frame 22. provided.

As shown in FIGS. 1 to 3, when the inner shoji 3 and the outer shoji 4 fully close the opening of the building frame, the joining frame 34 of the inner shoji 3 and the joining stile 44 of the outer shoji 4 are as follows: They are arranged so that they overlap in the indoor and outdoor directions. Both of the matching frames 34 and 44 have a hollow shape. The joining frames 34 and 44 are provided with a locking device 5 for fittings (hereinafter sometimes simply referred to as the locking device 5) that locks and unlocks the double-sliding window 1.

The locking device 5 includes a locking device main body 50A built in the matching stile 34 of the inner shoji 3 and a receiver 50B built in the matching stile 44 of the outer shoji 4. The locking device 5 of this embodiment allows both locking and unlocking operations by the operator operating the foot operation section 6 provided on the stile 34 of the shoji 3 with his/her foot from inside the room. configured. The foot operation section 6 is a first operation section for locking/unlocking the lock device 5. The lock device main body 50A and the receiver 50B are respectively built in the vicinity of the central portion of the connecting frames 34 and 44 in the height direction. The foot operation part 6 is arranged at the lower part of the indoor side finding surface 34a of the matching stile 34 of the inner shoji 3.

As shown in FIGS. 5 and 6, the lock device main body 50A includes a rack 52, a guide spur gear 53, a large diameter spur gear 54, a small diameter spur gear 55, a trigger 56, and a hook 57 in a case 51. .

The rack 52 is disposed on the indoor side of the case 51 and extends in the vertical direction within the binding stile extension 342 of the binding stile 34. Rack teeth 521 are formed on the outdoor side surface of the rack 52 along the length direction of the rack 52. A support piece 511 that is integrally provided with the case 51 is arranged on the indoor side of the rack 52. The support piece 511 extends vertically along the direction in which the rack 52 extends. The indoor side surface of the rack 52 is in contact with the support piece 511. The rack 52 is arranged within the case 51 so as to be slidable up and down along the support piece 511. Rack 52 is a moving member in the present disclosure.

The lower end of the rack 52 projects downward from the case 51. A tension spring 522 is provided across the lower end of the rack 52 protruding from the case 51 and the case 51. One end of the tension spring 522 is locked to a spring locking protrusion 522a provided at the lower end of the rack 52. The other end of the tension spring 522 is hooked onto the bottom plate 512 of the case 51. The tension spring 522 expands when the rack 52 moves downward, and applies a biasing force to the rack 52 to return it upward. This tension spring 522 is a biasing member in the present disclosure.

A connecting plate 523 is attached to the rack 52. The connecting plate 523 extends toward the indoor side from the rack 52 and protrudes from the indoor side finding surface 34a of the joining stile 34 of the inner shoji 3. The connecting plate 523 is connected to the vertically elongated manual operation part 7 arranged on the indoor side finding surface 34a of the joining frame 34. The manual operation section 7 is a manual operation member of the lock device 5, and is a second operation section for locking/unlocking the lock device 5. The manual operation unit 7 is provided so as to be movable up and down integrally with the rack 52.

The rack 52 has a stepped portion 524 extending along the length direction of the rack 52 on the outdoor side surface where the rack teeth 521 are provided. The step portion 524 is provided with engagement recesses 524a and 524b that are vertically spaced apart from each other.

A kick spring 525 is arranged on the outdoor side of the rack 52. The kick spring 525 is hooked onto a pin 513 that projects inside the case 51. One end 525a of the kick spring 525 is latched to a locking pin 514 provided inside the case 51. The other end 525b of the kick spring 525 is bent into an arc shape and elastically abuts against the stepped portion 524 of the rack 52.

Engagement recesses 524a and 524b provided in the step portion 524 define the upper end position and lower end position of the movement stroke of the rack 52. At the upper end position of the movement stroke of the rack 52, as shown in FIG. 5, the other arcuate end 525b of the kick spring 525 engages with the lower engagement recess 524b. At the lower end position of the movement stroke of the rack 52, as shown in FIG. 6, the other arcuate end 525b of the kick spring 525 engages with the upper engagement recess 524a. When the rack 52 moves up and down, a click feeling is obtained at the upper and lower end positions of the movement stroke, thereby improving operability.

The guide spur gear 53 is disposed at the lower part of the case 51 and is rotatably supported by a support shaft J1 provided in the case 51. The guide spur gear 53 meshes with the rack teeth 521. As shown in FIG. 7, the guide spur gear 53 has a boss portion 531 that protrudes along the support shaft J1. The outer circumference of the boss portion 531 is provided with an arc-shaped outer circumferential surface 531a and a locked surface 531b having a shape in which a portion of the outer circumferential surface is cut flat. As a result, the cross section of the boss portion 531 perpendicular to the support shaft J1 has a substantially D-shaped outer shape. The guide spur gear 53 is rotatable about the support shaft J1 in conjunction with the vertical movement of the rack 52.

The large-diameter spur gear 54 and the small-diameter spur gear 55 are arranged in the upper part of the case 51 and are rotatably supported by a support shaft J2 provided in the case 51. The large diameter spur gear 54 meshes with the rack teeth 521. As shown in FIG. 8, the large diameter spur gear 54 and the small diameter spur gear 55 are coaxially provided. The large-diameter spur gear 54 has an engagement convex shaft 541 that protrudes along the support shaft J2. The small diameter spur gear 55 has an engagement hole 551 that engages with the engagement convex shaft 541. The large-diameter spur gear 54 and the small-diameter spur gear 55 are integrated around the support shaft J2 in conjunction with the vertical movement of the rack 52 by engaging the engagement convex shaft 541 and the engagement hole 551 with each other. Rotate.

The trigger 56 is arranged inside the case 51 above the guiding spur gear 53 and below the large-diameter spur gear 54 along the indoor-outdoor direction. The trigger 56 has a guide hole 561 that is long in the indoor and outdoor directions. A guide protrusion 515 provided on the case 51 is engaged in the guide hole 561 . The trigger 56 is supported so as to be movable in the indoor and outdoor directions within a range in which the guide protrusion 515 is movable relative to the guide hole 561. As shown in FIG. 6, when the trigger 56 is moved most toward the outdoor side, the end of the trigger 56 on the outdoor side protrudes from the case 51 toward the outdoor side. At this time, the trigger 56 protrudes toward the outdoor side from the outdoor side finding surface 34b of the joining stile 34 to such an extent that it comes into contact with the joining stile 44 of the outer shoji 4.

A spring receiving portion 562 that projects downward is integrally provided on the lower surface of the trigger 56. One end of a compression spring 565 is in contact with the spring receiving portion 562 . The other end of the compression spring 565 is fixed to a spring fixing piece 516 provided on the case 51. The compression spring 565 protrudes toward the outdoor side from the spring fixing piece 516, and is in contact with the spring receiving portion 562 at its protruding end. When compressed, the compression spring 565 exerts a biasing force toward the outdoor side on the trigger 56 via the spring receiving portion 562.

An arcuate recess 563 is provided on the lower surface of the indoor end of the trigger 56 . A flat locking surface 564 is provided on the lower surface of the arcuate recess 563 on the further indoor side along the indoor/outdoor direction. The guide spur gear 53 is supported by the support shaft J1 by fitting the boss portion 531 inside the arcuate recess 563 of the trigger 56. The arcuate outer peripheral surface 531a of the boss portion 531 is along the arcuate surface of the arcuate recess 563.

The right side of the end of the trigger 56 on the outdoor side is tapered toward the outdoor side. As a result, an inclined surface 566 is formed on the tip surface of the trigger 56 on the outdoor side. When the inclined surface 566 comes into contact with the connecting frame 44 of the outer shoji 4, it slides against the connecting frame 44, thereby causing the trigger 56 to move toward the indoor side while compressing the compression spring 565. gradually retreat.

The hanger 57 is arranged between the large-diameter spur gear 54 and the trigger 56 in the case 51, and is rotatably supported by a support shaft J3 provided in the case 51. On the outer periphery of the hanger 57, an arc-shaped engagement plate 571 and a gear portion 572 are provided, which are arranged with the support shaft J3 in between. The gear portion 572 meshes with the small diameter spur gear 55. Therefore, when the large diameter spur gear 54 rotates in conjunction with the vertical movement of the rack 52, the hanger 57 rotates via the small diameter spur gear 55. The arcuate engagement plate 571 is placed in a locked position and an unlocked position by rotation of the hanger 57, respectively.

A spring locking convex portion 573 is provided on the side surface of the hanger 57 . One end of a tension spring 574 is locked to the spring locking convex portion 573 . The other end of the tension spring 574 is locked to a spring locking piece 517 provided on the case 51. The biasing force of the tension spring 574 acts in the locking direction from the middle of the locking process when the hanger 57 is engaged with the receiver 50B, and acts in the unlocking direction from the middle of the unlocking process when the hook 57 is disengaged from the receiver 50B. It acts on Therefore, locking/unlocking operations can be performed easily.

The receiver 50B has an engagement piece 58. The engagement piece 58 is disposed on the indoor side finding surface 44a of the joining stile 44 of the outer shoji 4 so as to be able to engage with the arcuate engagement plate 571 of the hanger 57.

1 and 5 show the locked state of the lock device 5. As shown in FIG. In this state, the inner shoji 3 and the outer shoji 4 are closed, and the joining frames 34 and 44 are overlapped. The rack 52 is located at the upper end of the travel stroke. The trigger 56 is most retracted toward the indoor side by contacting the joining stile 44 of the outer shoji 4, thereby compressing the compression spring 565. This state is the triggered state. The arcuate engagement plate 571 of the hanger 57 protrudes from the outdoor side finding surface 34b of the matching stile 34 of the inner shoji 3 and engages with the engagement piece 58 of the receiver 50B. At this time, since the guiding spur gear 53 is rotatable inside the arc-shaped recess 563 of the trigger 56, the rack 52 can be moved downward for unlocking.

FIG. 6 shows the lock device 5 in an unlocked state. In this state, at least one of the inner shoji 3 and the outer shoji 4 is open, and the joining frames 34 and 44 do not overlap. The rack 52 is located at the lower end position of the travel stroke. This state is a trigger release state. The hanger 57 rotates in conjunction with the downward movement of the rack 52, disposes the arc-shaped engagement plate 571 inside the case 51, and releases the engagement with the engagement piece 58 of the receiver 50B. . At this time, since the locked surface 531b of the boss portion 531 of the guide spur gear 53 faces the trigger 56 side, the trigger 56 moves forward toward the outdoor side by the urging force of the compression spring 565. Since the locking surface 564 of the advanced trigger 56 is disposed facing the locked surface 531b, the guide spur gear 53 cannot rotate. Therefore, the rack 52 cannot be moved upward regardless of the biasing force of the tension spring 522, and the unlocked state is maintained.

The foot operation section 6, which is the first operation section of the locking device 5, is arranged at the lower part of the stile 34 of the inner shoji 3 and projects toward the indoor side. The foot operation section 6 has a substantially prismatic base section 61 and a pedal section 62, as shown in FIGS. 2 and 11. The base portion 61 and the pedal portion 62 are integrally molded from a resin material. The foot operation section 6 is connected to the rack 52 of the locking device main body 50A by a connecting member 63.

As shown in FIG. 11, a notch 343 is formed at the lower end of the joining stile 34 by cutting out the lower end of the joining stile extension 342 toward the indoor side and downward. The base portion 61 of the foot operation portion 6 is inserted into the interior of the stile extension portion 342 from the notch portion 343 so as to be vertically movable.

The pedal portion 62 is integrally provided at the lower end portion of the base portion 61 so as to protrude toward the indoor side. The pedal section 62 shown in this embodiment integrally includes a foot insertion section 621 and a stile cover section 622 rising upward from the foot insertion section 621.

As shown in FIGS. 4 and 11, the foot insertion part 621 has a top plate 621a, a bottom plate 621b, left and right side plates 621c, and a back plate 621d, and has a horizontally long shape that opens toward the indoor side. It has a box-like shape. The width of the foot insertion portion 621 is larger than the width of the matching frame 34.

The stile cover portion 622 is formed into a rectangular tube shape with an open upper and outdoor side, and integrally extends upward from the upper surface plate 621a of the foot insertion portion 621. The stile cover portion 622 covers the indoor facing surface 34a of the joining stile 34 and the left and right prospective surfaces 342a of the joining stile extension 342 when the base 61 is inserted into the inside of the joining stile extension 342. It is arranged like this.

Since the base portion 61 of the foot operation section 6 is inserted into the inside of the alignment frame extension 342, when a lateral force is applied to the foot operation unit 6, it is not pushed in the lateral direction against the alignment frame 34. Pressure can be applied. That is, the foot operation section 6 is provided so that the inner shoji 3 can be opened and closed by being pressed in the lateral direction with the operator's foot.

A connecting member 63 that connects the base 61 of the foot operation section 6 and the rack 52 of the lock device main body 50A is constituted by a metal rod-shaped member. The upper end of the connecting member 63 is connected to the lower end of the rack 52, as shown in FIGS. 5 and 6. The lower end of the connecting member 63 passes through the base 61 and, as shown in FIG. 11, is supported by a nut 631 attached from below the base 61 so that the base 61 does not fall off.

The foot operation section 6 of this embodiment further includes a latch member 64. The latch member 64 is a holding member in the present disclosure. The latch member 64 is attached to the lower end portion of the base portion 61 and to the outdoor side of the pedal portion 62. The latch member 64 is generally also called a stag latch or the like. As shown in FIG. 12A, the latch member 64 is arranged between a box-shaped latch member main body 641, a pair of holding arms 642 that protrude downward from the lower end of the latch member main body 641, and a pair of holding arms 642. and a push switch 643 that opens and closes the holding arm 642.

As shown in FIG. 2, the held portion 65 is arranged in the cutout portion 343 of the matching frame 34 below the foot operation portion 6. The held part 65 has a fixed part 651 and a spherical strike part 652 that projects from the upper surface of the fixed part 651. The fixing portion 651 is fixed to the joining frame main body 341 exposed in the cutout portion 343. When the foot operation section 6 moves downward toward the held section 65, the push switch 643 of the latch member 64 is pressed by the strike section 652. When the push switch 643 is pressed, as shown in FIG. 12B, the pair of holding arms 642 closes and holds the strike part 652 in its grip. At this time, the foot operation section 6 is held in the lowered position. When the foot operation section 6 moves downward again from the state where the pair of holding arms 642 holds the strike section 652 and the push switch 643 is pressed again, the pair of holding arms 642 return to the open state. Then, the hold on the strike portion 652 is released. At this time, the foot operation section 6 can be moved upward.

Next, as shown in FIG. 13, a case will be described in which the operator OP, who is holding luggage in both hands, locks and unlocks the sliding window 1 and opens and closes the sliding door 3.

First, when the double-sliding window 1 is fully closed, the operator OP inserts the toe FT of one foot into the pedal part 62 of the foot operation part 6 from the indoor side, and presses the toe downward. Step on it big. The foot operation part 6 smoothly moves downward while being guided by the base 61 to the matching stile extension part 342, and lowers the rack 52 of the lock device main body 50A via the connecting member 63 while extending the tension spring 522. move in the direction. As shown in FIG. 6, when the rack 52 is placed at the lower end position of the movement stroke, the rotation of the hook 57 releases the engagement between the arc-shaped engagement plate 571 and the engagement piece 58 of the receiver 50B, and the lock is locked. The device 5 becomes unlocked.

Thereafter, as shown in FIG. 13, the operator OP presses the foot operation part 6 in the lateral direction by moving his/her foot in the opening direction D1 while stepping on the pedal part 62, thereby opening the inner shovel 3. move it. At this time, the latch member 64 holds the strike portion 652, so that the foot operation portion 6 is held in the lowered position. Therefore, even if the operator OP releases the toe FT from the pedal portion 62 after opening the inner shoji 3, the unlocked state is maintained.

When closing the inner shoji 3, the operator OP inserts the toe FT into the pedal section 62 of the foot operation section 6 again from the indoor side and moves the foot operation section 6 sideways by moving the foot in the closing direction D2. Press in the direction to close the inner shoji 3. When the inner shoji 3 is fully closed, the trigger 56 comes into contact with the joining stile 44 of the outer shoji 4 and retreats most toward the indoor side. At this time, the boss portion 531 of the guide spur gear 53 fits into the arcuate recess 563 of the trigger 56, so the guide spur gear 53 becomes rotatable, but the latch member 64 holds the strike portion 652. Therefore, the foot operation section 6 is held in the lowered position. Therefore, the rack 52 does not move upward regardless of the biasing force of the tension spring 522, and the lock device 5 remains in the unlocked state.

After the inner shoji 3 is fully closed, the operator OP steps down on the foot operation part 6 in a smaller or lighter manner than when unlocking, and releases the holding of the strike part 652 by the latch member 64. When the latch member 64 is released, the rack 52 is moved upward by the biasing force of the tension spring 522 and placed at the upper end position of the movement stroke. As a result, the hook 57 rotates, the arcuate engagement plate 571 and the engagement piece 58 of the receiver 50B engage with each other, and the locking device 5 enters the locked state.

The locking/unlocking operation of the inner shoji 3 may be performed by the operator OP manually operating the manual operation unit 7.

The lock device 5 according to the present embodiment described above has the following effects.

(1) The locking device 5 for fittings of this embodiment is provided in a sliding window 1 which is a fitting that opens and closes an opening by sliding an inner shoji 3 housed in a frame 2 in the horizontal direction. A locking device 5 for fittings that locks and unlocks an internal shoji 3 includes a locking device main body 50A that is provided on the internal shoji 3 and performs a locking/unlocking operation by vertically moving a rack 52 that is a movable member, and an internal shoji 3 The foot operation section 6 is provided with a vertically movable foot operation section 6 provided at the lower part of the indoor side finding surface 34a, and a connecting member 63 that connects the rack 52 and the foot operation section 6. The locking device main body 50A can be locked and unlocked by the feet.

According to this, the operator OP can operate the lock device main body 50A from the indoor side using his/her feet. Even in the case of an operator OP who is carrying luggage in both hands or an operator who is handicapped, it is possible to operate the locking device main body 50A and perform locking/unlocking operations without using hands. Moreover, since the opportunity to use the hands when operating the lock device main body 50A is reduced, the risk of infection by bacteria or viruses through the hands is also reduced.

(2) In the locking device 5 for fittings described in (1) above, the foot operation section 6 is provided so that the inner shoji 3 can be opened and closed by being pressed in the lateral direction with the foot of the operator OP.

According to this, the operator OP can open and close the inner shoji 3 by operating the foot operation unit 6 with his/her foot from inside the room. Since there is no need to use hands, the inner shoji 3 can be opened and closed even in the case of an operator OP who is carrying luggage in both hands or an operator who is handicapped. Moreover, since it is not necessary to use the hands when opening and closing the inner shoji 3, the risk of being infected with bacteria or viruses through the hands is also reduced.

(3) In the locking device 5 for fittings described in (1) or (2) above, the locking device main body 50A moves the rack 52 downward via the connecting member 63 by moving the foot operation section 6 downward. Move it to perform the unlocking operation.

According to this, the locking device 5 can be unlocked by the natural action of the operator OP simply stepping down on the foot operation section 6 with his/her foot, which is excellent in usability.

(4) In the locking device 5 for fittings described in (3) above, the tension spring 522 that applies an upward biasing force to the rack 52 and the foot operation unit 6 that has been moved downward are held in the lower position. The lock device main body 50A further includes a latch member 64 that is a holding member that releases the holding when the foot operation section 6 is pressed downward again, and the lock device main body 50A is configured such that the foot operation section 6 is held in the lower position by the latch member 64. When the foot operation section 6 is released from the latch member 64, the rack 52 is moved upward by the biasing force of the tension spring 522 to perform a locking operation.

According to this, even if the operator OP takes his/her foot off the foot operation section 6, the unlocked state of the locking device 5 is maintained. Furthermore, when the locking device 5 is in the unlocked state, the foot operating portion 6 is held in the lowered position by the holding function of the latch member 64, so that the locking device 5 can be in the unlocked state depending on the position of the foot operating portion 6. can be confirmed. Furthermore, when relocking the locking device 5, the rack 52 can be moved upward by the biasing force of the tension spring 522 and easily locked by simply stepping on the foot operation part 6 slightly or lightly.

Although the above-described fittings are exemplified by the sliding window 1 having two shoji screens, the inner shoji 3 and the outer shoji 4, the fittings of the present disclosure are not limited to this. The fittings of the present disclosure may be provided with three or more shoji, or may be a single-sliding window with only one shoji. The fittings are not limited to windows, but may also be single-sliding doors for entrances that open and close openings by sliding laterally.

In the above embodiment, the foot operation unit 6 is configured to perform both the locking operation and the unlocking operation by the operator OP's foot operation, but the invention is not limited thereto. The foot operation unit 6 may be configured to perform only one of the locking operation and the unlocking operation by the operator OP's foot operation. Even if only one of the locking and unlocking operations is performed with the foot, the opportunity to use the hand to operate the locking device main body 50A is reduced compared to the case where both locking and unlocking operations are performed by hand. This reduces the risk of being infected with bacteria or viruses through hands.

In this embodiment, the lock device 5 is provided with a tension spring 522 that urges the rack 52 upward, but the tension spring 522 does not necessarily need to be provided. When the locking device 5 is not provided with the tension spring 522, the locking operation of the locking device 5 is performed by the operator OP moving the foot operating portion 6 upward with his foot or by the operator OP moving the manual operating portion 7 upward with his hand. This can be done by moving to .

In this embodiment, the latch member 64 is provided on the foot operation section 6, but the latch member 64 does not necessarily need to be provided. If the foot operation part 6 is not provided with the latch member 64, when the inner shoji 3 and the outer shoji 4 are fully closed, the trigger 56 moves back toward the indoor side, and the tension spring 522 automatically activates the latch member 64. A locking operation is performed. Therefore, the operator OP does not need to perform any operation to lock the door. In the case where the locking device 5 is not provided with the tension spring 522, the locking operation of the locking device 5 is performed by the operator OP moving the foot operating section 6 upward with his foot or by the operator OP moving the manual operating section 7 with his hand. This is done by moving it upwards.

The foot operation section is not limited to the foot operation section 6 having the shape shown in this embodiment. The foot operation section, like the foot operation section 6A shown in FIG. 15, has the upper surface plate 621a of the foot insertion section 621 extending to the indoor side smaller than the amount of the lower surface plate 621b extending toward the indoor side, The foot insertion portion 621 may also be formed to open upward on the indoor side. According to this, it becomes easy to insert the toe into the foot insertion section 621 from above the foot insertion section 621. The amount of extension of the upper surface plate 621a of the foot insertion portion 621 toward the indoor side may be even smaller as in the foot operation portion 6B shown in FIG. 16.

The foot operation section does not need to be provided with the bottom plate 621b in the foot insertion section 621 like the foot operation section 6C shown in FIG. 17. In this case, the stepping motion of the foot operation section 6C can be performed on the top plate 621a.

The pedal section of the foot operation section does not necessarily have a box-shaped foot insertion section. The pedal section of the foot operation section has a foot operation member 623 made of a block member protruding toward the indoor side, like the pedal section 62 of the foot operation section 6D shown in FIG. 18, instead of the foot insertion section. It's good. This foot operation member 623 is formed by a block member having a substantially U-shaped cross section protruding toward the indoor side. The foot operation member 623 made of a block member may be provided with a through hole 624 that penetrates in the lateral direction, as in the foot operation section 6E shown in FIG.

1 Fittings, 2 Frame body, 3 Interior sliding door, 34a Indoor side finding surface, 5 Locking device, 52 Rack (moving member), 522 Tension spring (biasing member), 6 Foot operation unit, 63 Connecting member, 64 Latch member, OP operator, FT toe (foot)

Claims (4)

A locking device for fittings that is installed in a fitting that opens and closes an opening by sliding a shoji housed in a frame in the lateral direction, and that locks and unlocks the shoji,
a lock device main body that is provided on the shoji and performs a locking/unlocking operation by vertically moving a movable member;
a foot operation section that is movable up and down at the bottom of the indoor side finding surface of the shoji;
a connecting member connecting the moving member and the foot operation section;
The foot operation part is a locking device for fittings, wherein the foot operation section is provided to enable locking and/or unlocking of the locking device main body by the operator's foot. The locking device for fittings according to claim 1, wherein the foot operation section is provided so that the shoji can be opened and closed by being pressed in a lateral direction with an operator's foot. 3. The lock device main body performs an unlocking operation by moving the movable member downward via the connecting member by moving the foot operation part downward. Locking device. a biasing member that applies a biasing force upward to the moving member;
further comprising a holding member that holds the foot operation section that has moved downward in a lower position and releases the holding when the foot operation section is pressed downward again;
The lock device main body maintains the unlocked state while the foot operation section is held in the lower position by the holding member, and when the foot operation section is released from the holding member, the biasing member is activated. The locking device for fittings according to claim 3, wherein the moving member is moved upward by a biasing force to perform a locking operation.

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