WO2009072839A1

WO2009072839A1 - Locking device for a window

Info

Publication number: WO2009072839A1
Application number: PCT/KR2008/007210
Authority: WO
Inventors: Jae Ho Hong; Jeong Sik Kim
Original assignee: General Rotor Co., Ltd.
Priority date: 2007-12-05
Filing date: 2008-12-05
Publication date: 2009-06-11
Also published as: KR100835573B1

Abstract

A locking device for windows comprises a fixing member installed in a rear side window frame; and an engaging member installed in a front side window frame, wherein said fixing member includes a body which has an engaging part at its both sides, an accommodation groove formed in its center, and a support plate which is engaged to an upper side of the accommodation groove; an engaging part which is inserted in the accommodation groove and appears and disappears therein; a handle which is integrally engaged with the engaging part and moves forward and backward; and a stopper and a stop pin which are hinged to the handle for fixing a state that the engaging part is received.

Description

LOCKING DEVICE FOR A WINDOW

Technical Field

[I] The present invention relates to a locking device for windows, and n particular to a locking device for windows which is installed in a window for thereby locking or unlocking the windows with a simple operation.

[2]

Background Art [3] Generally, a common window might be classified into a sliding window and a hinged window. [4] The sliding window means that a window can be opened or closed as a window slid es leftward or rightward.

[5] A locking device is generally installed in a sliding window.

[6] The locking device is configured to allow a window not to open in a state that it is reliably closed even when a stopper installed in a frame is rotated. [7] The hinged window is a window which is opened or closed about a hinged axis, and a locking device is generally installed as well. [8] Since the sliding window and the hinged window operate differently from each other, the locking device has also different types. [9] However, a conventional window opening and closing device is configured as a locking lever attached to one side of a window is hanged to a hook of a window of the other side or a locking rod is coupled by a thread method, so a locking and unlocking work is so complicated that a weak person can not easily operate. [10]

Disclosure of Invention

Technical Problem

[I I] Accordingly, it is an object of the present invention to provide a locking device for windows which overcomes the problems encountered in a conventional art and provides a simple operation and a more reliable locking state as a locking or unlocking operation can be automatically performed in the course of opening or closing the windows, and a locked state can be fixed.

[12]

Technical Solution

[13] To achieve the above objects, there is provided a locking device for windows which comprises a fixing member 2 installed in a rear side window frame 300; and an engaging member 4 installed in a front side window frame 200, wherein said fixing member 2 includes a body 22 which has an engaging part 224 at its both sides, an accommodation groove 220 formed in its center, and a support plate 25 which is engaged to an upper side of the accommodation groove 220; an engaging part 24 which is inserted in the accommodation groove 220 and appears and disappears therein; a handle 26 which is integrally engaged with the engaging part 24 and moves forward and backward; and a stopper 27 and a stop pin 28 which are hinged to the handle 26 for fixing a state that the engaging part 24 is received. [14]

Advantageous Effects

[15] In the present invention, it is possible to provide a locking device for windows, which has a simple construction and less manufacture processes along with a simple operation and convenient use. [16]

Brief Description of Drawings [17] Figure 1 is a perspective view illustrating a locking device for windows according to the present invention. [18] Figure 2 is a disassembled perspective view illustrating a locking device for windows according to the present invention. [19] Figure 3 is a photo of a locking device for windows according to the present invention. [20] Figure 4 is a perspective view illustrating an installation state of a locking device for windows according to the present invention. [21] Figure 5 is a cross sectional view illustrating a unlocked state of a locking device for windows according to the present invention. [22] Figure 6 is a cross sectional view illustrating a locked state of a locking device for windows according to the present invention. [23] Figure 7 is a cross sectional view for describing an operation of a stop pin in a locking device for windows according to the present invention. [24] Figures 8 and 9 are cross sectional views illustrating a locking device for windows according to another embodiment of the present invention, of which Figure 9 is a view illustrating a state that a fixing pin is unlocked; and [25] Figures 10 and 11 are cross sectional views illustrating a locking device for windows according to further another embodiment of the present invention, of which Figure 10 is a view illustrating a locked state of a fixing pin, and Figure 11 is a view illustrating a unlocked state of a fixing pin. [26]

Best Mode for Carrying out the Invention [27] A locking device for windows comprises a fixing member 2 installed in a rear side window frame 300; and an engaging member 4 installed in a front side window frame 200, wherein said fixing member 2 includes a body 22 which has an engaging part 224 at its both sides, an accommodation groove 220 formed in its center, and a support plate 25 which is engaged to an upper side of the accommodation groove 220; an engaging part 24 which is inserted in the accommodation groove 220 and appears and disappears therein; a handle 26 which is integrally engaged with the engaging part 24 and moves forward and backward; and a stopper 27 and a stop pin 28 which are hinged to the handle 26 for fixing a state that the engaging part 24 is received.

[28]

Mode for the Invention

[29] The preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[30] Figure 1 is a perspective view illustrating a locking device for windows according to the present invention. Figure 2 is a disassembled perspective view illustrating a locking device for windows according to the present invention. Figure 3 is a photo of a locking device for windows according to the present invention.

[31] As shown in Figures 1 through 3, the locking device for windows according to the present invention comprises a fixing member 2 installed in a back side window frame 300, and an engaging member 4 installed in a front side window frame 200.

[32] The fixing member 2 comprises a body 22 in which an engaging part 224 is formed in its both sides, and an accommodation groove 220 is formed in its center, and has a support plate 25 engaged to an upper side of the accommodation groove 220, an engaging part 24 which is received in the accommodation groove 220 and appears and disappears, a handle 26 which is integrally engaged with the engaging part 24 and moves forward and backward, and a stopper 27 which is hinged to the handle 26 and fixes a state that the engaging part 24 is inputted.

[33] The engaging member 4 includes a through hole 40 for receiving the engaging part

24, a slant surface 42 formed in its one side, and an engaging hole 44 for engaging a bolt 43 in its both sides.

[34] The body 22 is formed in a rectangular shape, and an engaging part 224 having an engaging hole 21 for engaging a bolt 212 at its both sides is formed in a wing shape. An accommodation groove 220 for receiving the engaging part 24 is longitudinally formed in an inner side. The accommodation groove 220 has the opened upper and front sides, and has a through hole 221 formed in its lower surface.

[35] The support plate 25 is formed of a plate for covering the upper sides of the body 22, and an elongated hole 250 communicating with the accommodation groove 220 is formed in its center portion. A pin hole 251 is formed in one side of the elongated hole 250 for receiving a stop pin 28 which will be described later. An engaging elongated hole 252 formed to be perpendicular to the elongated hole 250 is formed in a rear side.

[36] A front elongated hole 253 is formed in both sides of the elongated hole 250 for receiving an engaging protrusion 274 of a stopper 27 which will be described later.

[37] The engaging part 24 is formed in a rectangular rod shape having a certain length and is received in the accommodation groove 220, and a slat surface 240 corresponding to the slant surface 42 of the engaging member 4 is formed in its front end, and a groove 241 is formed in its rear end, and a through hole 242 is formed closer to the rear side.

[38] The through hole 242 is equipped with a circular shoulder 243 in its inner side, so a head part of a wrench bolt 100, which will be described later, is supported by the circular shoulder 243.

[39] One end of a spring 270 is inserted into the groove 241, and the other end of the spring 270 is supported by an inner wall of the accommodation groove 220 of the body 22.

[40] The handle 26 is provided for controlling an appearing and disappearing operation of the engaging part 24 with the helps of its forward and backward movements, with a stopper 27 being hinged in its one side, with a stop pin 28 being installed.

[41] The handle 26 has a protrusion 262 formed in its upper surface, a boss 264, which is formed in its lower side and is inserted into the through hole 242 of the engaging part 24, a cut-away groove 263 formed in its rear end for receiving the stopper 27, and a pin hole 265 formed in one side of its upper surface for receiving the stop pin 28.

[42] The boss 264 has an engaging hole 2642 for engaging the wrench bolt 100.

[43] The handle 26 is integrated with the engaging part as the boss 264 passes through the elongated hole 250 of the support plate 25 and is inserted into the through hole 242 of the engaging part 24, and the wrench bolt 100 is engaged to the engaging hole 2642 of the boss 264, and its head portion is supported by means of the circular shoulder 243 of the through hole 242.

[44] So, the engaging part 24 can appear or disappear with the helps of the forward and backward movements of the handle 242.

[45] The stopper 27 is provided for fixing an inputted state of the engaging part 24, namely, an unlocked state, and is hinged as being inserted into the cut-away groove 243 formed in one side of the handle 242.

[46] The stopper 27 has a diamond shaped cross section, and has an insertion hole 271 formed in its front side for receiving a shaft pin 276, and an elastic support spring 272 is vertically installed in its front upper side, and a plurality of engaging protrusions 274 are formed in its front lower side.

[47] The stop pin 28 has a rod body 282 having a certain length, and a head 281 formed in its upper side. The rod body 282 is inserted into a pin hole 265 of the handle 26. A fixing and unfixing operation is performed as the lower side of the rod body 262 is inserted into the pin hole 252 of the support plate 25 or is disengaged from the same.

[48] Preferably, an O-ring 283 is disposed in an outer side of the rod body 282, so it is closely engaged to an inner side of the pin hole 252 while avoiding loosening.

[49] The body 22 is further equipped with a locking member.

[50] As shown in Figure 2, the locking member includes an insertion hole R- 1 formed in one side of the body 22 and reaching the accommodating groove 220, and a fixing pin R which is inserted into the insertion hole R-I.

[51] The fixing pin R has a head part R-5 of its one end, and a protruded handle R-6 formed in its other end.

[52] The insertion hole R- 1 has a groove R-2 for receiving a head part R-5 of the fixing pin R.

[53] The support plate 25 is equipped with a rubber shaft rod R-4 for preventing the fixing pin R from being loosened, and the rubber shaft rod R-4 can slowly operate with the helps of a friction force as the front end of the rubber shaft rod R-4 contacts with an outer surface of the fixing pin R.

[54] The rubber shaft rod R-4 is inserted into the hole R-3 formed in the support plate 25.

[55] So, the engaging part 24 moves forward and is inserted into the through hole 40 of the engaging member 4, and the handle R-6 of the fixing pin R is held and inwardly pushed, so that the head part R-5 is positioned in the rear side of the engaging part 24, whereby the engaging part 24 cannot move backward for thereby reliably enhancing a locked state.

[56] On the contrary, when the fixing pin R is pulled, the head part R-5 is inserted into the groove R-2 of the insertion hole R-I, so the forward and backward movements of the engaging part 24 are not interfered.

[57] The engaging and operations of the present invention will be described.

[58] The support plate 25 is engaged to the upper side of the body 22, and the spring 270 and the engaging part 24 are sequentially inserted into the accommodation groove 220.

[59] The stopper 27 is inserted into the cut-away groove 263 of the handle 26, so the elastic support spring 272 supports the upper surface of the cut-away groove 263, and the shaft pin 276 is inserted while passing through the insertion hole 271, so the stopper 27 is hinged.

[60] The stop pin 28 is inserted into the pin hole 265.

[61] The assembly of the handle 26 and the stopper 27 are positioned on the upper side of the support plate 25, and the boss 264 is inserted into the elongated hole 250 and the through hole 242 of the engaging part 24, respectively, and the wench bolt 100 is engaged from the opposite side, so the assembling of the fixing member 2 is finished. [62] Figure 4 is a perspective view of an installation state of the locking device for windows according to the present invention.

[63] As shown in Figure 4, the engaging member 4 is installed in the front side window frame 200. Namely, the engaging member 4 is vertically arranged in the front side window frame 200, and the bolt 43 is engaged to the engaging hole 44.

[64] The fixing member 22 is installed in the rear side window frame 300. Namely, the bolt 212 is engaged to the engaging hole 21 of the engaging part 224.

[65] So, the engaging part 24 of the fixing member 2 faces the through hole 40 of the engaging member 4.

[66] Figure 5 is a cross sectional view illustrating a unlocked state of a locking device for windows according to the present invention. Figure 6 is a cross sectional view illustrating a locked state of a locking device for windows according to the present invention.

[67] As shown in Figure 5, the handle 26 is pushed with hands and is moved backward, so the spring 270 is compressed and the engaging part 24 is backwardly moved and is inserted into the accommodation groove 220. The engaging protrusion 274 of the stopper 27 is inserted into the engaging elongated hole 252 of the support plate 25, which corresponds to the unlocked state.

[68] As shown in Figure 6, the front and rear side window frames 200 and 300 are closed, and the stopper 27 is pressed with hands, and the engaging protrusion 274 is escaped from the engaging elongated hole 252, and the engaging part 24 and the handle 26 move forward by means of the elastic force generated as the spring 270 is extended, so the engaging part 24 is inserted into the through hole 40 of the engaging member 4, which means a locked state.

[69] Figure 7 is a cross sectional view for describing an operation of a stop pin in a locking device for windows according to the present invention.

[70] As shown in Figure 7, in the above locked state, when the stop pin 28 is pressed, its lower side is inserted into the pin hole 251, so the locked state can be stable.

[71] In the above state, when it is needed to open the windows, the head 281 of the stop pin 28 is held with fingers, and its lower end is escaped from the pin hole 251, so the fixed state is unlocked. When the handle 26 is pushed backward with hands, the unlocked state as shown in Figure 6 is obtained.

[72] When the rear side window frame 300 and the front side window frame 200 are closed in crossing manners without backwardly moving the handle 26 with hands, the slat surface 240 of the engaging part 24 is fast inserted along the slant surface 42 of the engaging member 4, and then is ejected, so the windows are automatically locked.

[73] The locking device for windows according to the present invention is further equipped with a safe member in the engaging member 4 for fixing a locked state of the engaging part. [74] Figures 8 and 9 are cross sectional views illustrating a locking device for windows according to another embodiment of the present invention, of which Figure 9 is a view illustrating a state that a fixing pin is unlocked. [75] As shown in Figures 8 and 9, the safety member comprises a fixing pin 5 which is horizontally inserted into a side wall of the engaging member 4, with a front end of the same being inserted into the through hole 40, an engaging hole 243 horizontally formed in a front side of the engaging part 24 in order for the fixing pin 5 to be inserted, and a ball stopper member 3 which is installed in a side wall for supporting the fixing pin 5. [76] A horizontal insertion hole communicating with the through hole 40 is formed in a side wall of the engaging member 4, and the fixing pin 5 is inserted into the horizontal insertion hole. [77] A vertical through hole communicating with the horizontal insertion hole is formed in an upper end of the side wall of the engaging member 4, and the ball stopper member 3 is installed in the vertical through hole. [78] The fixing pin 5 is formed of a rod body having a head in its front end, and first and second circular grooves 51 and 52, which correspond to the locking and unlocking states and are spaced-apart from each other. Are formed in the outer surface of the rob body. [79] The ball stopper member 3 includes a ball 33 which is inserted into the vertical through hole while corresponding to the first and second circular grooves 51 and 52, a coil spring 32 which elastically supports the ball 3, and a thread body 31 engaged for adjusting a tensional force of the coil spring 32. [80] The screw body 31 is formed of a hexagonal bolt, and when the thread body 31 is tightened, a pressing force of the ball 3 increases, and when it is loosened, a pressing force of the ball 3 is loosened. [81] As shown in Figure 8, the engaging member 24 is inserted into the through hole 40 of the engaging member 4, and a user pushes the fixing pin 5, so its front end is inserted into the engaging hole 243, whereby a locking state can be reliable. [82] As shown in Figure 9, when a user pulls out the fixing pin 5, its front end is separated from the engaging hole 243, so the locked state is obtained. [83] The fixing pin 5 can be prevented from its missing since in the locked state the first circular groove 51 is inserted, and in the unlocked state, the ball 33 is inserted into the second circular groove 52, and the ball 33 presses the fixing pin 5 by means of the elastic force of the coil spring 32. [84] When the screw body 31 is tightened, the coil spring 32 is pressed, so the pressing force of the ball 33 increases, and when the screw body 31 is loosened, the pressing force of the coil spring 33 is loosened, so the pressing force by the ball 33 can be released. So the user can selectively adjust the force.

[85] A more reliable locking state can be obtained using the locking member.

[86] Namely, when the engaging member 24 moves forward and is inserted into the through hole 40 of the engaging member 4, and it is inwardly pushed holding the handle R-6 of the fixing pin R, so the head part R-5 is positioned in a rear side of the engaging part 24, whereby the engaging part 24 never moves backward for thereby enhancing the locked state. [87] On the contrary, when the fixing pin R is pulled, its head part R-5 gets received into the groove R-2 of the insertion hole R-I, so the forward and backward movements of the engaging part 24 are not interfered. [88] Figures 10 and 11 are cross sectional views illustrating a locking device for windows according to further another embodiment of the present invention, of which Figure 10 is a view illustrating a locked state of a fixing pin, and Figure 11 is a view illustrating a unlocked state of a fixing pin. [89] As shown in Figures 10 and 11, the safety member comprises a fixing pin 71 which is horizontally inserted into a side wall of the engaging member 4 with a coil spring 72 being disposed in an outer side of the same, an engaging hole 243 which is horizontally formed in a front side of the engaging part 24 for receiving the fixing pin 71, and a lever 7 which is hinged at a side wall of the through hole 40 and has a cam 73 for pressing the fixing pin 71. [90] A cut-away groove 45 is vertically formed in a side wall of the engaging member 4 and has a horizontal insertion hole passing through from the cut-away groove 45 to the through hole 40, and the lever 4 5is hinged in the cut-away groove 45. [91] A fixing pin 71 is formed in a T shape having a head in its upper end, and the head contacts with the cam 73. [92] The lever 7 is formed of a circular hinge engaging part having a handle, and a convex shaped cam 73 is formed on an outer surface of the hinge engaging part, and the cam

73 is contactable with the head of the fixing pin 71. [93] When the lever 7 rotates upwards, the cam 73 presses the head of the fixing pin 71, and the locked state is obtained, and on the contrary, when the lever 7 rotates downward, the cam 73 gets distanced from the head of the fixing pin 71, so the unlocked state is obtained. [94] As shown in Figure 10, when the lever 7 rotates upward, and the cam 73 presses the fixing pin 71, the coil spring 72 is compressed, and the fixing pin 71 is inserted into the engaging hole 243 of the engaging part 24. [95] On the contrary, as shown in Figure 11, when the lever is rotated in the reverse direction, the cam 73 is distanced from the fixing pin 71, and the fixing pin 71 is ejected by means of an elastic recovery force of the coil spring 72, so it is separated from the engaging hole 243 of the engaging part 24, whereby the unlocked state is obtained.

[96]

Industrial Applicability

[97] In the present invention, it is possible to provide a locking device for windows, which has a simple construction and less manufacture processes along with a simple operation and convenient use.

[98] As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

[99]

Sequence Listing

[100] window, frame, lock, unlock

[101]

Claims

[1] A locking device for windows, comprising: a fixing member 2 installed in a rear side window frame 300; and an engaging member 4 installed in a front side window frame 200, wherein said fixing member 2 includes: a body 22 which has an engaging part 224 at its both sides, an accommodation groove 220 formed in its center, and a support plate 25 which is engaged to an upper side of the accommodation groove 220; an engaging part 24 which is inserted in the accommodation groove 220 and appears and disappears therein; a handle 26 which is integrally engaged with the engaging part 24 and moves forward and backward; and a stopper 27 and a stop pin 28 which are hinged to the handle 26 for fixing a state that the engaging part 24 is received.

[2] The device of claim 1, wherein said engaging member 4 has a through hole 40 for receiving the engaging part 24, a slat surface 42 formed in its one side, and an engaging hole 44 in which a bolt 43 is engaged at its both sides.

[3] The device of claim 1, wherein said body 22 has an inner side for receiving the engaging part 24, an accommodation groove 220 having a through hole 221 in its lower surface with its upper and front sides being open, and an engaging part 224 which has an engaging hole 21 for engaging a bolt 212 at its both sides and is formed in a wing shape.

[4] The device of claim 1, wherein said support plate 25 is formed of a plate for covering the upper sides of the body 22 and has an elongated hole 250 formed in its center while passing through the accommodation groove 220, and a pin hole 251 formed in one side of the elongated hole 250 for receiving a stop pin 28, an engaging elongated hole 252 formed in its rear side as being perpendicular with respect to the elongated hole 250, and a front side elongated hole 253 formed at both sides of the elongated hole 250.

[5] The device of claim 1, wherein said engaging part 24 is inserted into the accommodation groove 220 and is a rectangular rod body having a certain length, and has a slant surface 240 formed in its front end, and a groove 241 in its rear end and a through hole 242 formed closer to a rear side.

[6] The device of claim 1, wherein said handle 26 has a protrusion 262 on its upper surface, a boss 264 formed in its lower side for being engaged to the engaging part 24, and a cut-away groove 263 formed in its rear end for receiving the stopper 27, and a pin hole 265 formed in one side of the upper surface for receiving the stop pin 28.

[7] The device of claim 6, wherein said stopper 27 has a diamond shaped cross section and includes an elastic support spring 272 in its upper front side, and a plurality of engaging protrusions 274 formed in its front lower side.

[8] The device of claim 6, wherein said stop pin 28 has a rod body 282 having a certain length, and a head 281 in its upper end, with the rod body 282 being inserted into the plate hole 265.

[9] The device of claim 2, wherein a safety means is installed in the engaging member 4 for fixing a locked state of the engaging part 24.

[10] The device of claim 9, wherein said safety means includes a fixing pin 5 which is horizontally inserted into a side wall of the engaging member 4, with a front end of the same being inserted into the through hole 40, an engaging hole 243 horizontally formed in a front side of the engaging part 24 in order for the fixing pin 5 to be inserted, and a ball stopper member 3 which is installed in a side wall for supporting the fixing pin 5, and said fixing pin 5 is a rod body having a head in its front end, and first and second circular grooves 51 and 52 corresponding to a locked state and a unlocking state on an outer surface of the rod body are spaced apart from each other, and said ball stopper member 3 includes a ball 33 corresponding to the first and second circular grooves 51 and 52, a coil spring 32 for elastically supporting the ball 3, and a thread member 31 for adjusting a tensional force of the coil spring 32.

[11] The device of claim 9, wherein said safety means includes: a fixing pin 71 which is horizontally inserted into a side wall of the engaging member 4 with a coil spring 72 being disposed in its outer surface; an engaging hole 243 which is horizontally formed in a front side of the engaging member 24 for receiving the fixing pin 71 ; and a lever 7 which is hinged at a side wall of the through hole 40 and includes a cam

73 for pressing the fixing pin 71.

[12] The device of claim 1, wherein said body 22 further includes a locking means.

[13] The device of claim 12, wherein said locking means includes an insertion hole R-

1 formed in one side of the body 22 while reaching the accommodation groove 220, and a fixing pin R inserted into the insertion hole R-I.

[14] The device of claim 13, wherein a rubber shaft rod R-4 is installed in the support plate 25 for preventing the fixing pin R from being loosened, and a front end of the rubber shaft rod R-4 contacts with the fixing pin R.