WO2017026592A1

WO2017026592A1 - Opening assistant apparatus for sliding windows

Info

Publication number: WO2017026592A1
Application number: PCT/KR2015/013651
Authority: WO
Inventors: Sung Man Yang
Original assignee: Lg Hausys, Ltd.
Priority date: 2015-08-10
Filing date: 2015-12-14
Publication date: 2017-02-16
Also published as: KR20170018594A; CN107690503B; CN107690503A; KR101915448B1

Abstract

Disclosed is an opening assistant apparatus for sliding windows which causes a sash frame to be easily opened. The opening assistant apparatus for sliding windows includes a housing having an inner space, a rotating member installed in the inner space of the housing so as to be rotatable, an arm installed adjacent to the rotating member and rotated by rotation of the rotating member so that one end of the arm exposed to the outside of the housing protrudes towards the inner surface of an adjacent window frame, a locking member installed adjacent to the rotating member and rotated by rotation of the rotating member so as to be released from a locked state, and a cover combined with the housing to close the inner space of the housing.

Description

OPENING ASSISTANT APPARATUS FOR SLIDING WINDOWS

The present invention relates to an opening assistant apparatus for sliding windows, and more particularly to an opening assistant apparatus for sliding windows in which a locking member is rotated by rotation of a handle and thus released from a locked state and a sash frame is separated from a window frame in an opening direction by rotation of an arm and thus easily opened.

In general, various windows for the purpose of access control and lighting are provided at the inside and outside of buildings.

Here, windows may be classified into a sliding type, a hinged type and a fixed type according to opening and closing methods. Thereamong, a sliding type is mainly applied to windows having medium and large sizes installed in living rooms and/or verandas of houses.

In such a sliding window, when a user grips and pushes or pulls a handle provided at a sash frame to one side, rollers at the lower end of the sash frame are rotated along a rail on a window frame and, thus, the sliding window slides in the transverse direction and is opened or closed.

Recently, in case of a medium or large sized sliding window, in order to improve adiabatic performance, glass having a large thickness as compared to a conventional sliding window or multi-layer glass is applied to a sash frame and thus the sash frame has a considerable load. Further, since, in order to improve noise and outdoor air inflow blocking performance, an airtight unit is applied between the sash frame and a window frame, the sash frame and the airtight unit closely contact each other and it is not easy to slide the sash frame by pushing or pulling while gripping a handle, thus causing inconvenience in opening of the sash frame.

In order to solve such problems, technology disclosed in Korean Utility Model Laid-open Publication No. 20-2010-0012532 (Publication Date: December 17, 2010) has been proposed.

Korean Utility Model Laid-open Publication No. 20-2010-0012532 discloses a handle interlocking type opening apparatus for sliding doors in which a rack for the opening apparatus is formed on a slide bar having a rack geared with a pinion combined with a handle installed to operate a locking apparatus and a sash frame is separated from a door frame in front of the rack for the opening apparatus, the opening apparatus including a body fixed to the sash frame under the condition that the body is inserted into a rail groove, an arm assembled with the body by an arm pin so as to be rotatable and having a plurality of pinion protrusions engaged with the rack for the opening apparatus formed on the slide bar, a roller assembled with the front end of the arm, and a leaf spring installed to contact a vertical part of the arm under the condition that the leaf spring is fixed to the body to elastically support the arm located within the body.

In Korean Utility Model Laid-open Publication No. 20-2010-0012532 having the above-described configuration, when the handle provided on the sash frame is rotated, the arm is rotated together with the handle to separate the sash frame from the door frame and thus opening of a medium or large sized sliding door may be simply carried out.

However, in Korean Utility Model Laid-open Publication No. 20-2010-0012532, since the opening apparatus and the locking apparatus operated by the handle are separately provided, the opening apparatus has a complicated structure and causes complexity in manufacture and installation and, since the opening apparatus is operated after operation of release of the locking apparatus, a considerable time is taken to operate the opening apparatus.

In view of the above problems, development of an opening assistant apparatus for sliding windows which may shorten a time taken to operate an opening apparatus while having a simple structure has been carried out but satisfactory results have yet to be acquired.

Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an opening assistant apparatus for sliding windows which may reduce complexity in manufacture and installation due to a complicated structure caused by a conventional opening assistant apparatus for sliding windows having a locking apparatus and an opening apparatus respectively operated by a handle.

It is another object of the present invention to provide an opening assistant apparatus for sliding windows which may solve requirements of a considerable time taken to operate an opening apparatus due to operation of the opening apparatus after operation of release of a locking apparatus caused by a conventional opening assistant apparatus for sliding windows having the locking apparatus and the opening apparatus respectively operated by a handle.

In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of an opening assistant apparatus for sliding windows including a housing having an inner space, a rotating member installed in the inner space of the housing so as to be rotatable, an arm installed adjacent to the rotating member and rotated by rotation of the rotating member so that one end of the arm exposed to the outside of the housing protrudes towards the inner surface of an adjacent window frame, a locking member installed adjacent to the rotating member and rotated by rotation of the rotating member so as to be released from a locked state, and a cover combined with the housing to close the inner space of the housing.

The housing may be installed within one side of a sash frame adjacent the inner surface of the window frame.

The housing may be combined with the window frame by screws.

The rotating member may include a through hole formed at the center thereof to receive the central shaft of the handle.

The through hole may be formed to have a polygonal shape.

The rotating member may include a plurality of gear teeth formed at designated intervals and provided on the outer circumferential surface of the rotating member.

The arm may include one or more gear teeth provided on the outer circumferential surface of one end of the arm located within the housing.

The arm may include a roller provided at one end thereof exposed to the outside of the housing.

A U-shaped groove may be formed on the outer circumferential surface of the roller.

One end of the arm located within the housing may be elastically supported by an elastic member and, thus, the end of the arm exposed to the outside of the housing in a protruding state may be automatically restored to the former state by elastic force of the elastic member.

As locking of the locking member with a stopper is released by lowering of the movable member through rotation of the rotating member, the locking member may be released from the locked state.

The movable member may include one or more openings engaged with some of gear teeth provided on the outer circumferential surface of the rotating member.

The upper end of the movable member may be elastically supported by an elastic member and, thus, the movable member in the lowered state may be automatically restored to the former state by elastic force of the elastic member.

The lower end of a stopper may be elastically supported by an elastic member and, thus, the stopper in the locking release state from the locking member may be automatically restored to the former state by elastic force of the elastic member.

One end of the locking member located within the housing may be elastically supported by an elastic member and, thus, the locking member in the release state may be automatically restored to the former state by elastic force of the elastic member.

The cover may include an opening communicating with a through hole provided at the center of the rotating member.

The cover may be combined with the housing by screws.

An opening assistant apparatus for sliding windows in accordance with the present invention includes a releasable locking member and an arm protruding towards the inner surface of a window frame, provided within a housing, and thus has a simple structure, as compared to a case in that a locking apparatus and an opening apparatus are separately provided, thereby being easily manufactured and installed.

Further, the opening assistant apparatus for sliding windows in accordance with the present invention simultaneously performs release of the locking member and protrusion of the arm by rotation of a rotating member and may thus shorten a time taken to operate the opening apparatus, as compared to a case in which operation of a locking apparatus and operation of an opening apparatus are sequentially carried out.

FIG. 1 is a perspective view illustrating the external appearance of an opening assistant apparatus for sliding windows in accordance with the present invention.

FIG. 2 is an exploded perspective view illustrating the structure of the opening assistant apparatus for sliding windows in accordance with the present invention.

FIG. 3 is a cross-sectional view illustrating the structure of the opening assistant apparatus for sliding windows in accordance with the present invention.

FIG. 4 is an exemplary view illustrating the closed state of a sash frame to which the opening assistant apparatus for sliding windows in accordance with the present invention is applied.

FIG. 5 is an exemplary view illustrating the opened state of the sash frame to which the opening assistant apparatus for sliding windows in accordance with the present invention is applied.

FIG. 6 is an exemplary view illustrating rotation of a rotating member in the opening assistant apparatus for sliding windows in accordance with the present invention.

FIG. 7 is an exemplary view illustrating protrusion of an arm in the opening assistant apparatus for sliding windows in accordance with the present invention.

FIG. 8 is an exemplary view illustrating release of a locking member in the opening assistant apparatus for sliding windows in accordance with the present invention.

FIG. 9 is an exemplary view illustrating lowering of a movable member in the opening assistant apparatus for sliding windows in accordance with the present invention.

FIG. 10 is an exemplary view illustrating release of locking of a stopper in the opening assistant apparatus for sliding windows in accordance with the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As exemplarily shown in FIGs. 1 to 3, an opening assistant apparatus for sliding windows A in accordance with the present invention includes a housing 10, a rotating member 20, an arm 30, a locking member 40, and a cover 50.

A space is formed within the housing 10.

By forming the space within the housing 10, the rotating member 20, the arm 30 and the locking member 40 may be installed within the housing 10.

The housing 10 is mounted within one side of a sash frame 200 adjacent to the inner surface of a window frame 100.

By mounting the housing 10 within one side of the sash frame 200, a central shaft 310 of a handle 300 mounted at one side of the sash frame 200 is combined with the rotating member 20 installed in the housing 10 and thus the rotating member 20 may be rotated by rotation of the handle 300.

Further, the housing 10 may be combined with the sash frame 200 by screws (no reference numeral).

By combining the housing 10 with the sash frame 200 by the screws, the housing 10 may be separated from the sash frame 200 and the combined state between the housing 10 and the sash frame 200 may be firmly maintained.

The rotating member 20 may be installed in the inner space of the housing 10 so as to be rotatable.

The rotating member 20 may have a through hole 21 formed at the center thereof so that the central shaft 310 of the handle 300 is inserted into the through hole 21.

By inserting the central shaft 310 of the handle 300 into the through hole 21 of the rotating member 20, the handle 300 and the rotating member 20 are connected so that the rotating member 20 may be rotatable by rotation of the handle 300.

Here, the through hole 21 may be formed to have a polygonal shape, such as a rectangle.

Since the through hole 21 has a polygonal shape, if the central shaft 310 of the handle 300 has a polygonal shape and is inserted into the through hole 21, idle rotation of the central shaft 310 within the through hole 21 during rotation of the handle 300 is prevented and thus the rotating member 20 is smoothly rotated by rotation of the handle 300.

Further, a plurality of gear teeth 22 formed at designated intervals may be provided on the outer circumferential surface of the rotating member 20.

By forming the gear teeth 22 on the outer circumferential surface of the rotating member 20, the rotating member 20 is rotated under the condition that the gear teeth 22 are engaged with gear teeth 31 formed on the outer circumferential surface of one end of the arm 30, which will be described later, and thus the arm 30 may be rotated.

The arm 30 is installed adjacent to the rotating member 20 and, when the arm 30 is rotated by rotation of the rotating member 20, one end of the arm 30 exposed to the outside of the housing 10 protrudes towards the inner surface of the window frame 100.

The arm 30 may include one or more gear teeth 31 provided on the outer circumferential surface of one end of the arm 30 located within the housing 10.

By forming the gear teeth 31 provided on the arm 130, the gear teeth 31 are engaged with the gear teeth 22 of the rotating member 20 and thus the arm 30 may be rotated by rotation of the rotating member 20.

The arm 30 may include a roller 32 provided at one end of the arm 30 exposed to the outside of the housing 10.

By forming the roller 32 on the arm 30, when one end of the arm 30 protrudes towards the inner surface of the window frame 100 and contacts the inner surface of the window frame 100, damage to the window frame 100 is prevented by rotation of the roller 32.

Here, a U-shaped groove 32a is formed on the outer circumferential surface of the roller 32.

By forming the U-shaped groove 32a on the roller 32, a rail 110 formed on the inner surface of the window frame 100 is received in the U-shaped groove 32a, thus stabilizing contact between the arm 30 and the inner surface of the window frame 100 although the rail 100 is provided on the inner surface of the window frame 100.

Further, one end of the arm 30 located within the housing 10 is elastically supported by an elastic member 33.

By elastically supporting the arm 30 through the elastic member 33, elastic force of the elastic member 33 is applied to the arm 30 under the condition that the end of the arm 30 protrudes towards the inner surface of the window frame 100, thus automatically restoring the end of the arm 30 to its former state prior to protrusion.

Here, since elastic force of the elastic member 33 is smaller than external force applied to the rotating member 20 and the arm 30 by rotation of the handle 300, elastic force acts only in a state in which external force is not applied to the rotating member 20 and the arm 30, i.e., while the non-rotated state of the handle 300 is maintained from when the handle 300 is shifted from the rotated state to the former state.

The locking member 40 is installed adjacent to the rotating member 20, rotated by the rotating member 20, and is released from a locked state thereof.

As locking of the locking member 40 with a stopper 70 is released by lowering the movable member 60 through rotation of the rotating member 20, the locking member 40 is released from the locked state.

Therefore, when the rotating member 20 is not rotated and the movable member 60 is in a raised state, the stopper 70 is locked with the locking member 40 and thus the locked state of the locking member 40 is maintained.

Here, a loop part 41 of the front end of the locking member 40 in the locked state is inserted into a striker 120 fixed to the inner surface of the window frame 100 and thus prevents the sash frame 200 from being opened.

One end of the locking member 40 located within the housing 10 may be elastically supported by an elastic member 42.

By elastically supporting one end of the locking member 40 through the elastic member 42, elastic force of the elastic member 42 is applied to the locking member 40 under the condition that the locking member 40 is in the release state and, thus, the locking member 40 is automatically restored to the former state thereof prior to release.

Here, since elastic force of the elastic member 42 is smaller than external force applied to the rotating member 20 and the locking member 40 by rotation of the handle 300, elastic force acts only in a state in which external force is not applied to the rotating member 20 and the locking member 40, i.e., while the non-rotated state of the handle 300 is maintained from when the handle 300 is shifted from the rotated state to the former state.

The movable member 60 may include one or more openings 61 engaged with some gear teeth 22 of the rotating member 20.

By forming the openings 61 on the movable member 60, the rotating member 20 is rotated under the condition that some gear teeth 22 are engaged with the openings 61 and, thus, the movable member 60 is lowered.

Here, the upper end of the movable member 60 may be elastically supported by an elastic member 62.

Since the upper end of the movable member 60 may be elastically supported by the elastic member 62, elastic force of the elastic member 62 is applied to the movable member 60 under the condition that the movable member 60 is lowered and, thus, the movable member 60 in the lowered state is automatically restored to the former state thereof.

Here, since elastic force of the elastic member 62 is smaller than external force applied to the rotating member 20 and the movable member 60 by rotation of the handle 300, elastic force acts only in a state in which external force is not applied to the rotating member 20 and the movable member 60, i.e., while the non-rotated state of the handle 300 is maintained from when the handle 300 is shifted from the rotated state to the former state.

Further, the lower end of the stopper 70 may be elastically supported by an elastic member 71.

By elastically supporting the lower end of the stopper 70 through the elastic member 71, elastic force of the elastic member 71 is applied to the stopper under the condition that locking of the stopper 70 with the locking member 40 is released and, thus, the stopper 70 in the locking release state from the locking member 40 is automatically restored to the former state thereof.

Here, since elastic force of the elastic member 71 is smaller than external force applied to the rotating member 20, the movable member 60 and the stopper 70 by rotation of the handle 300, elastic force acts only in a state in which external force is not applied to the rotating member 20, the movable member 60 and the stopper 70, i.e., while the non-rotated state of the handle 300 is maintained from when the handle 300 is shifted from the rotated state to the former state.

The cover 50 is combined with the housing 10 and closes the inner space of the housing 10.

By closing the inner space of the housing 10 with the cover 50, separation of the rotating member 20, the arm 30 and the locking member 40 from the inner space from the housing 10 and damage to the rotating member 20, the arm 30 and the locking member 40 may be prevented.

The cover 50 may include an opening 51 communicating with the through hole 21 provided on the rotating member 20.

By forming the opening 51 provided on the cover 51, the central shaft 310 of the handle 300 is inserted into the through hole 21 via the opening 51 and thus the rotating member 20 may be rotated by rotation of the handle 300.

Further, the cover 50 may be combined with the housing 10 by screws (no reference numeral)

By combining the cover 50 with the housing 10 by the screws, the cover 50 may be separated from the housing 10 and the combined state between the cover 50 and the housing 10 may be firmly maintained.

Now, opening of the sash frame 200 to which the above-described opening assistant apparatus for sliding windows A in accordance with the present invention is applied will be described in detail.

In the present invention, since the housing 10 is mounted within one side of the sash frame 200 adjacent to the inner surface of the window frame 100, the central shaft 310 of the handle 300 installed at the side of the sash frame 200 may be inserted into the through hole 21 of the rotating member 20 installed within the housing 10.

Therefore, a user may grip and rotate the handle 300, thus rotating the rotating member 20, as exemplarily shown in FIG. 6.

Here, a plurality of gear teeth 22 is formed on the outer circumferential surface of the rotating member 20 and some gear teeth 22 are engaged with the gear teeth 31 formed on the outer circumferential surface of one end of the arm 30 installed within the housing 10.

Therefore, when the arm 30 is rotated by rotation of the rotating member 20, as exemplarily shown in FIG. 7, one end of the arm 30 exposed to the outside of the housing 10 protrudes towards the inner surface of the window frame 100 and, thus, the sash frame 200 is separated from the window frame 100 in the opening direction by reaction force when the arm 30 and the window frame 100 contact.

During a process of separating the sash frame 200 from the window frame 100, when the sash frame 200 moves in the opening direction by pushing or pulling the handle 300, the sash frame 200 may slide in the transverse direction even with a comparatively small force. Therefore, the sash frame 200 may be simply opened, as exemplarily shown in FIG. 5.

However, in the present invention, since the locking member 40 and the arm 30 are installed within the housing 10, in a state in which the sash frame 200 is closed and the locking member 40 is locked, i.e., in which the loop part 41 of the front end of the locking member 40 is inserted into the striker 120 fixed to the inner surface of the window frame 100, as exemplarily shown in FIG. 4, sliding of the sash frame 200 in the transverse direction may not be carried out and thus the sash frame 200 may not be opened.

However, in the present invention, some gear teeth 22 on the outer circumferential surface of the rotating member 20 are engaged with the gear teeth 31 on the outer circumferential surface of the arm 30, and other gear teeth 22 are engaged with the openings 61 of the movable member 60 installed within the housing 10, as exemplarily shown in FIG. 9.

Therefore, the movable member 60 is lowered simultaneously with rotation of the arm 30 by rotation of the rotating member 20, the stopper 70 provided at the lower part of the movable member 60 is lowered due to lowering of the movable member 60, as exemplarily shown in FIG. 10, and locking between the stopper 70 and the locking member 40 is released by lowering of the stopper 70. Then, the locking member 40 may be released from the locked state, as exemplarily shown in FIG. 8, and the sash frame 200 may be smoothly opened without interference with the locking member 40.

Although opening of a sliding window has been exemplarily described above, if the opening assistant apparatus for sliding windows A of the present invention is applied to a hinged door, the above-described effects may be acquired.

As apparent from the above description, the opening assistant apparatus for sliding windows A in accordance with the present invention includes the releasable locking member 40 and the arm 30 protruding towards the inner surface of the window frame 100, provided within the housing 10, and thus has a simple structure, as compared to a case in that a locking apparatus and an opening apparatus are separately provided, thereby being easily manufactured and installed. Further, since release of the locking member 40 and protrusion of the arm 30 are simultaneously carried out by rotation of the rotating member 20, the opening assistant apparatus for sliding windows A may shorten a time taken to operate the opening apparatus, as compared to a case in that operation of a locking apparatus and operation of an opening apparatus are sequentially carried out.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

[Description of Reference Numerals and Marks]

10: housing 20: rotating member

21: through hole 22: gear teeth

30: arm 31: gear teeth

32: roller 32a: 'U'-shaped groove

33: elastic member 40: locking member

41: loop part 42: elastic member

50: cover 51: opening

60: movable member 61: opening

62: elastic member 70: stopper

71: elastic member 100: window frame

110: rail 120: striker

200: sash frame 300: handle

310: central shaft

A: opening assistant apparatus for sliding windows

Claims

An opening assistant apparatus for sliding windows comprising:

a housing having an inner space;

a rotating member installed in the inner space of the housing so as to be rotatable;

an arm installed adjacent to the rotating member and rotated by rotation of the rotating member so that one end of the arm exposed to the outside of the housing protrudes towards the inner surface of an adjacent window frame;

a locking member installed adjacent to the rotating member and rotated by rotation of the rotating member so as to be released from a locked state; and

a cover combined with the housing to close the inner space of the housing.
The opening assistant apparatus for sliding windows according to claim 1, wherein the housing is installed within one side of a sash frame adjacent the inner surface of the window frame.
The opening assistant apparatus for sliding windows according to claim 1, wherein the housing is combined with the window frame by screws.
The opening assistant apparatus for sliding windows according to claim 1, wherein the rotating member includes a through hole formed at the center thereof to receive the central shaft of the handle.
The opening assistant apparatus for sliding windows according to claim 4, wherein the through hole is formed to have a polygonal shape.
The opening assistant apparatus for sliding windows according to claim 1, wherein the rotating member includes a plurality of gear teeth formed at designated intervals and provided on the outer circumferential surface of the rotating member.
The opening assistant apparatus for sliding windows according to claim 1, wherein the arm includes one or more gear teeth provided on the outer circumferential surface of one end of the arm located within the housing.
The opening assistant apparatus for sliding windows according to claim 1, wherein the arm includes a roller provided at one end thereof exposed to the outside of the housing.
The opening assistant apparatus for sliding windows according to claim 8, wherein a U-shaped groove is formed on the outer circumferential surface of the roller.
The opening assistant apparatus for sliding windows according to claim 1, wherein one end of the arm located within the housing is elastically supported by an elastic member and, thus, the end of the arm exposed to the outside of the housing in a protruding state is automatically restored to the former state by elastic force of the elastic member.
The opening assistant apparatus for sliding windows according to claim 1, wherein, as locking of the locking member with a stopper is released by lowering of the movable member through rotation of the rotating member, the locking member is released from the locked state.
The opening assistant apparatus for sliding windows according to claim 11, wherein the movable member includes one or more openings engaged with some of gear teeth provided on the outer circumferential surface of the rotating member.
The opening assistant apparatus for sliding windows according to claim 11, wherein the upper end of the movable member is elastically supported by an elastic member and, thus, the movable member in the lowered state is automatically restored to the former state by elastic force of the elastic member.
The opening assistant apparatus for sliding windows according to claim 11, wherein the lower end of a stopper is elastically supported by an elastic member and, thus, the stopper in the locking release state from the locking member is automatically restored to the former state by elastic force of the elastic member.
The opening assistant apparatus for sliding windows according to claim 1, wherein one end of the locking member located within the housing is elastically supported by an elastic member and, thus, the locking member in the release state is automatically restored to the former state by elastic force of the elastic member.
The opening assistant apparatus for sliding windows according to claim 1, wherein the cover includes an opening communicating with a through hole provided at the center of the rotating member.
The opening assistant apparatus for sliding windows according to claim 1, wherein the cover is combined with the housing by screws.