TW202421914A - Doors, windows and their locking devices - Google Patents

Abstract

A door and window, comprising a door and window assembly, and at least one latching device. The door and window assembly has a first frame and at least one movable window sash, and the first frame is surrounded by a mounting space, and the movable window sash is assembled in the mounting space, and the movable window sash has a second frame. The latching device is arranged at the second frame of the movable window sash near the inner edge of the first frame, and comprises a body, a limit rod is arranged on the body, and the limit rod assembly is provided with an operating member, and the operating member can operate the limit rod so that the limit rod can slide between buckling and pressing to release. The limit rod of the latch device can not only be engaged with the inner edge of the first frame, but also can be released from the inner edge of the second frame by pressing the second frame of the movable window sash.

Description

Doors, windows and their locking devices

The present invention relates to a door and window and an operating component, in particular to a door and window and a latching device thereof.

All buildings are designed with doors and windows for lighting, ventilation, viewing the outdoors, and allowing indoor air circulation. However, the sashes of doors and windows must be able to be locked and unlocked so that the sashes of doors and windows can be opened or closed. Please refer to Figures 1 and 2, which show an existing door and window device 1, including a frame body surrounded by an installation space, wherein the installation space of the frame body has two window sashes that slide relative to each other, and an operating module 13 for opening and closing the window sashes, and corresponding positioning members 14 are respectively provided on both sides of the frame body. When the window sash is opened and closed, the operating module 13 is used to cooperate with the positioning members 14 (only one side is shown in Figure 1) provided on both sides of the frame body to lock and unlock so that the operating module 13 can operate the window sash to open and close. The operating module 13 includes a pull rod 131 extending transversely and for holding, two locking members 132 respectively located at opposite ends of the pull rod 131 and respectively engaged with the positioning members 14, and two push blocks 133 respectively provided on the locking members 132 for operating and moving the locking members 132. Therefore, when the operating module 13 is to be locked or unlocked with the positioning member 14, the push blocks 133 are pushed to lock or unlock the locking members 132 and the positioning members 14, and the pull rod 131 can be pulled to open or close the window sash.

However, each locking member 132 of the operating module 13 achieves the effect of limited locking by using the friction force generated when contacting the individual positioning member 14. In this way, the locking force between the locking member 132 and the positioning member 14 is insufficient, resulting in a poor locking effect. At the same time, the use of friction to achieve locking will also cause the locking member 132 and the positioning member 14 to wear over a long period of time, resulting in an effect of being unable to limit lock. In addition, when releasing the limit lock, due to the negligence of the user, the locking members 132 and the positioning members 14 may be in contact with each other when operating the pull rod 131 without releasing the lock. If the pull rod 131 is operated forcefully, the locking members 132 or the positioning members 14 may be worn or even damaged, thereby affecting the subsequent normal function operation.

Therefore, the design of the operating module 13 and the positioning members 14 of the existing door and window device 1 still has the following disadvantages: (1) The locking effect is achieved by using the friction generated by contact, but the locking force is insufficient and the locking effect is poor. (2) Long-term friction will cause the locking member 132 and the positioning member 14 to wear, and finally lead to a failure to lock. (3) When the user forcibly operates the pull rod 131, although the window sash can be opened, it is easy to cause the locking member 132 and the positioning member 14 to wear and damage, thereby affecting the locking effect.

Therefore, in order to solve the defects of the existing door and window devices in the window sash locking design, the purpose of the present invention is to provide a door and window and its latching device which is more convenient to operate and can automatically release the limit locking effect by pressing only.

Therefore, the latch device for doors and windows of the present invention comprises: a body, a limit rod is arranged on the body, and the limit rod assembly is provided with an operating member, and the operating member can control the limit rod so that the limit rod can slide between buckling and pressing to release. Among them, a first elastic member is arranged between the operating member and the body, a connecting piece is arranged between the limit rod and the operating member, and a contact block is arranged at a position of the connecting piece close to the operating member, and the opposite ends of the first elastic member are respectively pressed against one end of the body and the contact block, and the contact block pushes the first elastic member, and when the first elastic member is compressed, the elastic restoring force is accumulated, so that the limit rod has a rebound force for reset.

In addition, the door and window of the present invention comprises a door and window assembly, and at least one latch device of the present invention. The door and window assembly comprises: a first frame and at least one movable window sash, wherein the first frame is surrounded by a mounting space, and the movable window sash is assembled in the mounting space, and the movable window sash has a second frame, and the latch device is arranged at the second frame of the movable window sash near the inner edge of the first frame, wherein the limit rod of the latch device protrudes out of the first frame. A buckling device is provided between the rod body outside the body and the inner edge of the first frame. The buckling device has two hooks, which are respectively provided on the rod body of the limit rod and the inner edge of the first frame. The buckling device can not only make the limit rod buckle with the inner edge of the first frame, but also can release the buckle and disengage the limit rod from the inner edge of the second frame by pressing the second frame of the movable window sash.

The effect of the present invention is that the locking of the limit rod can be controlled by operating the operating member, so that the door and window equipped with the latch device of the present invention can avoid improper friction between components to cause wear or even damage by operating the operating member of the latch device when closing and opening the at least one movable window sash, and the latch device can be unlocked by pressing. In this way, not only the normal opening and closing function of the window sash can be ensured, but also the operation is quite convenient. Therefore, the advantages that can be achieved by the present invention are: (1) the buckling device of the latch lock device is used for buckling, which can increase the locking force and achieve a better locking effect; (2) the buckling locking design will not cause long-term friction to cause component wear and affect the locking function; (3) the user only needs to press to release the latch lock device, thereby achieving the effect of automatically releasing the lock, and there will be no situation in which the user will forcefully operate the pull rod to cause component wear and damage.

Before the present invention is described in detail, it should be noted that similar components are represented by the same reference numerals in the following description.

Referring to FIG. 3 , there is shown an embodiment of the latch device 2 of the present invention, which comprises a body 21, a limit rod 22 disposed on the body 21, an operating member 23 assembled on the limit rod 22, a first elastic member 24 disposed between the operating member 23 and the body 21, a connecting piece 25 connected between the limit rod 22 and the operating member 23, and an abutment block 26 disposed on the connecting piece 25 near the operating member 23.

The opposite ends of the first elastic member 24 are respectively pressed against between the main body 21 and one end of the abutment block 26. Since the limit rod 22, the connecting piece 25, the abutment block 26, and the operating member 23 are substantially connected, the limit rod 22 can slide in the same direction when the operating member 23 is operated. When the operating member 23 moves, the abutment block 26 pushes against the first elastic member 24, and an elastic restoring force is accumulated when the first elastic member 24 is compressed, so that the limit rod 22 has a rebound force for returning to its original position.

Referring to FIG. 4 and FIG. 5 , a first embodiment of the door and window of the present invention is shown. The first embodiment comprises a door and window assembly 3, a device embodiment of the latch device 2 of the present invention mounted on the door and window assembly 3, and a sway reduction device 4 disposed on the body 21 of the device embodiment. The sway reduction device 4 and the limit rod 22 are disposed on the upper and lower panels of the body 21, respectively, and the door and window assembly 3 can be a ventilation door.

The door and window assembly 3 has a first frame 31 that surrounds an installation space 310, and a movable window sash 32 pivotally mounted on the first frame 31 and capable of closing the installation space 310 or opening relatively. The movable window sash 32 has a second frame 321 pivotally mounted on the inner edge of the first frame 31, and the latch device 2 is disposed on the second frame 321 near the inner edge of the first frame 31.

3 to 5 , a recessed groove 210 is provided on the main body 21 of the latch device 2 at a position relative to the limit rod 22, and a notch 211 is provided on the edge of the main body 21 facing the inner edge of the first frame 31, so that when the operating member 23 is actuated, part of the limit rod 22 protrudes a distance outside the main body 21 through the notch 211. Among them, a snap-fit device 5 is provided between the rod body of the limit rod 22 protruding out of the main body 21 and the inner edge surface of the first frame 31. The snap-fit device 5 has two hooks 51 respectively provided on the rod body of the limit rod 22 and the inner edge of the first frame 31. The second frame 321 of the movable window sash 32 can be assembled on the inner edge of the first frame 31 through the snap-fit device 5.

5 and 6 , when the second frame 321 of the movable window sash 32 is closed relative to the first frame 31, the limit rod 22 of the latch device 2 is engaged with the inner edge of the first frame 31, that is, the hook 51 formed on the limit rod 22 is engaged with the hook 51 formed on the inner edge of the first frame 31, so that the limit rod 22 is in a locked state. Next, when the second frame 321 of the movable window sash 32 is to be opened relative to the first frame 31, the second frame 321 of the movable window sash 32 is pressed, that is, the limit rod 22 utilizes the elastic restoring force of the first elastic member 24 to give the limit rod 22 a resilient force for returning to its original position, so that the limit rod 22 and the hook 51 on the inner edge of the first frame 31 are disengaged from each other, so that the latch device 2 is unfastened and disengaged from the first frame 31. At this time, the second frame 321 is in an open state relative to the first frame 31.

In addition, when the second frame 321 of the movable window sash 32 is to be closed again, the operating member 23 is pulled when the second frame 321 is closed, so that the limit rod 22 moves toward the first frame 31 again until the hooks 51 are engaged with each other again, so that the second frame 321 is repositioned in the closed state. At this time, the first elastic member 24 of the device embodiment also accumulates elastic restoring force again, preparing for the next operation of opening the movable window sash 32.

Referring to FIG. 7 , a second embodiment of the door and window of the present invention is shown. The difference between the second embodiment and the first embodiment is that the second embodiment is provided with a first movable window sash 32a and a second movable window sash 32b sliding in the installation space 310. One of the first movable window sash 32a or the second movable window sash 32b is provided with a handle 329, and in the second embodiment, the handle 329 is provided on the second movable window sash 32b. In addition, the device embodiment of the latch device 2 of the present invention is provided at the handle 329 near the inner edge of the first frame 31 as shown in FIG. 8 .

Referring to FIG. 9 and FIG. 8 , the anti-sway device 4 includes a push member 41, a slide groove 42 and a second elastic member 43. The bottom of the push member 41 has a base 411, the base 411 slides in the slide groove 42, the base 411 is provided with a recessed groove 410 in the same direction as the sliding direction of the push member 41, and the second elastic member 43 is accommodated in the recessed groove 410. One end of the second elastic member 43 abuts against a groove bottom 419 of the recessed groove 410, and the slide groove 42 has a protruding portion 421 protruding from the groove wall for the base 411 to slide, relative to the other end of the second elastic member 43, and the protruding portion 421 is provided for the other end of the second elastic member 43 to abut against. One end of the push member 41 is provided with a stopper 412 extending between the edge of the body 21 and the inner edge of the first frame 31, and the other end is provided with a hooking portion 413. The body 21 is provided with a buckling portion 212 at a position relative to the hooking portion 413 of the push member 41, and the buckling portion 212 can be hooked and assembled with the hooking portion 413 of the push member 41 for positioning.

Referring to FIG. 10 in conjunction with FIG. 7 and FIG. 8 , part of the structure of the sway reduction device 4 protrudes from the edge of the body 21, and when the user operates the handle 329 to push the latch device 2 to open the second movable window sash 32b, the latch head 412 of the sway reduction device 4 protruding from the edge of the body 21 will press against the handle 329 and the inner edge surface of the first frame 31, thereby reducing the gap between the handle 329 and the inner edge surface of the first frame 31 and reducing the sway of the second movable window sash 32b, so that the second movable window sash 32b can be more stable when opened.

In summary, the door and window and the latch device of the present invention can produce a limit locking effect when the second frame 321 of the door and window is closed through the limit effect of the limit rod 22 of the latch device 2 and the simple operation of the operating member 23. When the second frame 321 is to be opened, the operation can be more convenient without wearing out the components, and the limit locking can be automatically released by pressing means, and the second frame 321 can be opened more stably in cooperation with the sway reduction device 4. Therefore, the purpose of the present invention can be achieved.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

1: Door and window device 11: Main frame 110: Installation space 12: Window frame 13: Operation module 131: Pull rod 132: Locking piece 133: Push block 14: Positioning piece 2: Latch device 21: Main body 210: Recessed groove 211: Notch 212: Snap-fit part 22: Limit rod 23: Operation piece 24: First elastic piece 25: Connecting piece 26: Abutment block 3: Door and window assembly 31: First frame 310: Installation space 32: Movable window sash 32a: First movable window sash 32b: Second movable window sash 321: Second frame 329: Handle 4: Anti-sway device 41: Pushing member 410: Recessed groove 411: Base 412: Latch head 413: Hooking part 419: Groove bottom 42: Slide groove 421: Raised part 43: Second elastic member 5: Snap-fit device 51: Hook

Other features and functions of the present invention will be clearly presented in the implementation method with reference to the drawings, in which: Figure 1 is an incomplete front view, illustrating an existing sliding window device; Figure 2 is a partially enlarged top view, illustrating a locking member and a positioning member of the existing sliding window device; Figure 3 is a three-dimensional view, illustrating an installation embodiment of the latch device of the present invention; Figure 4 is a three-dimensional view, illustrating a first implementation of the door and window of the present invention; Figure 5 is a schematic diagram from a top view, illustrating a door and window assembly of the first implementation; Figure 6 is a side view, which is used in conjunction with Figure 5 to illustrate the operation of the device implementation; Figure 7 is a three-dimensional view, illustrating a second implementation of the door and window of the present invention; Figure 8 is a schematic diagram, illustrating a sway reduction device of the second implementation; FIG. 9 is a three-dimensional exploded view illustrating the components of the sway reduction device and their connection relationship with the device embodiment; and FIG. 10 is a schematic diagram similar to FIG. 8 , which is used together with FIG. 8 to illustrate the function of the sway reduction device of the second embodiment.

2: Locking device

21: Body

210: Depression groove

211: Gap

22: Limit rod

23: Operating parts

24: First elastic member

25: Connector

26: Butt block

Claims (15)

A door and window latch device comprises a main body, a limit rod is arranged on the main body, and the limit rod assembly is provided with an operating member, and the operating member can control the limit rod so that the limit rod can slide between buckling and pressing to release. As described in claim 1, a first elastic member is provided between the operating member and the main body, and the first elastic member enables the limit rod to have a rebound force for returning when the operating member is pushed and pressed. As described in claim 2, a connecting piece is provided between the limit rod and the operating member to connect them to each other, so when the operating member slides under force, the connecting piece can synchronously push the limit rod to cause sliding. As described in claim 3, a latching device is provided with a contact block near the position of the connecting piece and the first elastic member is provided between the main body and one end of the contact block. A door and window comprises a door and window assembly, and at least one latch device as described in any one of claims 1 to 4, wherein the door and window assembly comprises: a first frame and at least one movable window sash, and the first frame is surrounded by a mounting space, and the movable window sash is assembled in the mounting space, and the movable window sash has a second frame, and the latch device is arranged at the second frame of the movable window sash near the inner edge of the first frame, and the limit rod of the latch device can not only be engaged with the inner edge of the first frame, but also be disengaged from the inner edge of the second frame by pressing the second frame of the movable window sash. The doors and windows as described in claim 5, wherein the movable window sashes include a first movable window sash and a second movable window sash that slide in the installation space, and one of the first movable window sash or the second movable window sash is provided with a handle, and the latch device is provided at the handle near the inner edge of the first frame. A door and window as described in claim 5, wherein the second frame of the movable window sash is hinged on the inner edge of the first frame. The door and window as described in claim 5, wherein the door and window assembly is a ventilation door. The door and window as described in claim 5, wherein a recessed groove is provided on the body of the latch device at a position relative to the limit rod, and the recessed groove is provided with a notch at the edge of the body facing the inner edge of the first frame, so that when the operating member is actuated, part of the rod body of the limit rod protrudes a distance outside the body through the notch. As described in claim 9, a snap-fit device is provided between the rod body of the limiting rod protruding out of the main body and the inner edge surface of the first frame, and the second frame of the movable window sash can be assembled on the inner edge of the first frame by means of the snap-fit device. As described in claim 10, the locking device has at least two hooks, and the two hooks are respectively arranged on the rod body of the limiting rod and the inner edge of the first frame. The door and window as described in claim 6, wherein a sway reduction device is further provided on the main body, and a part of the structure of the sway reduction device protrudes from the edge of the main body, and the sway reduction device protruding from the edge of the main body is pressed between the handle and the inner edge surface of the first frame, so as to reduce the gap between the handle and the inner edge surface of the first frame and reduce the sway of the movable window sash. The door and window as described in claim 12, wherein the sway reduction device includes a push member, a slide groove and a second elastic member, and the bottom of the push member has at least a base, and the base slides in the slide groove, and the base is provided with a recessed groove in the same direction as the sliding direction of the push member, and the second elastic member is accommodated in the recessed groove, and one end of the second elastic member abuts against the bottom of the recessed groove, and the slide groove is provided with a protrusion at a position of the groove wall for the push member to slide relative to the other end of the second elastic member, and the protrusion is for the other end of the second elastic member to abut against it, and one end of the push member is provided with a latch head, and the latch head is extended between the edge of the main body and the inner edge of the first frame. As described in claim 13, the other end of the push piece has a hooking portion, and the main body is provided with a buckling portion at a position relative to the hooking portion of the push piece, and the buckling portion can be hooked, assembled and positioned with the hooking portion of the push piece. The door and window as described in claim 12, wherein the sway reduction device and the limit rod are separately arranged on the upper and lower panels of the main body.

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