GB2469748A

GB2469748A - Window switching hinge

Info

Publication number: GB2469748A
Application number: GB201006743A
Authority: GB
Inventors: Yeung Chung Hon
Original assignee: Shenzhen Anhuaxin S&T Development Co Ltd
Current assignee: Shenzhen Anhuaxin S&T Development Co Ltd
Priority date: 2009-04-24
Filing date: 2010-04-22
Publication date: 2010-10-27
Also published as: HK1135277A2; GB201006743D0; CN201381721Y

Abstract

A window switching hinge including a slide way 1, a slide block 2, a push-pull rod 3, a tie rod 4 and a short rod 5 connected in a flexible manner. The short rod 5 has a plane salient 51 that glides with the slide way 1, and has a fixed angle with the slide way flank 11. The slide way 1 has a block stop 6 located in the sliding end which engages with the slide block when the window is closed. The block stop 6 has an inclined plane 61. The flank 11 of the slide way 1 has a notch 12 that allows the plane salient 51 to exit the slide way 1 when the short rod 5 is moved. To open the window the short rod 5 will slide along the plane salient 51 and run along the flank 11 of the slide way 1, while the push-pull rod 3 drives the slide block 2. To close the window, the push-pull rod 3 will pull the slide block 6 and short rod 5, and after the slide block 2 hits the block stop 6, the plane salient 51 in the short rod 5 will turn and fold along with the inclined plane 61 of the block stop 6.

Description

A Window Switching Hinge

Technical Field

This invention relates to a window switching hinge; especially refer to a window switching hinge with a rotary hinge joint in the short rod.

Background Art

As shown in Fig. 1, it is the usual window switching hinge in current technology, including a long push-pull rod 1, a push rod 3, a pull rod 2, a short rod 6, a slide block 5 and a guide slot 4; The long push-pull rod 1, the push rod 3, the pull rod 2. the short rod 6 and the slide block 5 connected by rivets and form a four-bar linkage push-pull structure.

The slide block 5 is placed in the guide slot 4 and able to slide within the guide slot 4. The window switching hinge with this kind of structure is very popular to the users, due to its great capacity for bearing, and its stability and reliability. However, the type of this hinge structure is complex by comparison, and requires more metallic raw materials, and higher cost. It becomes more important to develop a kind of window switching hinge that is able to save the raw materials and cut down cost, and also is environmentally friendly by comparison and with stabile and reliable quality, because of the rising price and the increasing shortage raw materials.

Contents of the Invention Aiming at the shortcomings above in existing technology, this invention is to provide a three-bar linkage structure of window switching hinge with simple structure, less raw material consumption, and with stabile and reliable quality.

To achieve the objective above, this invention adopts the following technical solution: A window switching hinge includes a slide way, a slide block, a push-pull rod, a tie rod and a short rod connected in a flexible manner, characterized in that the short rod has a plane salient that closely glides with the slide way, and shapes a fixed angle with the slide way flank; The slide way has a block stop located in the sliding end where in accordance with the location of the slide block when the window closed; The block stop has an inclined plane that assorted with the plane salient; The inclined plane and the flank of slide way transited by a cambered surface; The flank of slide way has a notch that is in accordance with the plane salient to get across when the short rod folds.

To enhance the stability of the slide of the slide block with the short rod, between the foresaid short rod and the slide block has a locating device, which includes a salient in the short rod, a locating surface in the salient that parallels with the flank, and a location block in the slide block that in accordance with the location surface.

The foresaid short rod has a location bump, whose inner side will against with the slide way flank after the short rod completes the folding.

The foresaid short rod is made up by plastic materials, and inside the short rod has metallic reinforcing rib, The foresaid fixed angle is at an angle of about 45 degrees.

By adopting the structure stated above, to open the window, by turning, the short rod will slide to the plane salient, and to join against the flank of the slide way, while the push-pull rod drives the slide block to move by the short rod, then the window opens smoothly.

To close the window, the push-pull rod will pull the slide block to move by the short rod, and after the slide block ceases to move by against the block stop, the plane salient in the short rod will turn and fold along with the inclined plane of the block stop. The switch hinge of this window does not need the push rod by compared with the hinge in the current technology; it will economize the usage of material. It has merits with simple structure and environmental protection, and it reduces the production cost, and remains stabile and reliable quality.

Description of Figures

Fig. 1 is a structure figure of the window switching hinge under current technology; Fig.2 is a structure figure of the invention.

Fig.3 is a structure figure of the short rod of the invention.

Fig.1 is a back view of the Fig.3.

Fig.5 is a bottom view of the Fig.3.

Mode of Carrying out the Invention Further explanation to the invention will be stated below combining with the attached figures and the mode of carrying out the invention: As shown from Fig. 2 to Fig. 5, a window switching hinge, including a slide way 1, a slide block 2, a push-pull rod 3, a tie rod 4 and a short rod 5 connected by rivets in a flexible mannei The short rod 5 is made up by plastic materials, and inside the short rod 5 has metallic reinforcing rib. The short rod 5 has a plane salient 51 that closely glides with the slide way 1, and shapes a fixed angle at 45 degrees with the slide way flank 11. The plane salient 51 will assort with the slide block to locate, and then form the slide rail that slides in accordance with the flank 11 of the slide way 1, and move along with the slide way. The short rod 5 and the slide block 2 has a locating device, which includes a salient 52 in the short rod 5, a locating surface in the salient 52 that parallels with the flank 11, and a location block 21 in the slide block 2 that in accordance with the location surface. The slide way 1 has a block stop 6 located in the sliding end where in accordance with the location of slide block when the window is closed. The block stop 6 has an inclined plane 61 that assorted with the plane salient 51. The inclined plane 61 and the flank 11 of slide way 1 transited by a cambered surface, The flank 11 of slide way 1 has a notch 12 that is in accordance with the plane salient 51 to get across when the short rod folds.

To extend the useful time, and prevent the over rotation of the short rod, a location bump 53 is located in the short rod 5, and the inner side of location bump 53 will against with the slide way flank 11 after the short rod completes the folding.

The operating principle of this invention is as following: 1. Open the window. When the push-pull 3 that linked with the window frame drives the short rod 5 under the impact of trust, the short rod could only rotate and slide away from the slide way 1 by the restriction of the block stop 6. After the short rod completely slide away from the slide way 1, the plane working face of the plane salient 51 will join against the flank 11 of the slide way 1, in this way it will restrict the short rod 5 to rotate, meanwhile the push-pull rod 3 is still under the continued impact of trust, the plane salient 51 will assort with the slide block to locate, and then form the slide rail that slides in accordance with the flank ii of the slide way 1, and move along with the slide way, then the window opens 2. Close the window. When the push-pull 3 that linked with the window frame drives the short rod 5 under the impact of pull, the short rod 5 pulls the slide block 2 to more, and when the slide block 2 move against the block stop 6, it will stop due to the limitation of the block stop. The short rod 5 is under the push by the push-pull rod 3, and the working surface of the plane salient 51 rotates and folds along with the flank of the block stop.

The embodiments described above are provided by way of examples only, and various other modifications will be apparent to persons skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims

Claims 1. A window switching hinge comprises a slide way (1), a slide block (2), a push-pull rod (3), a tie rod (4) and a short rod (5) connected in a flexible manner, characterized in that the short rod (5) has a plane salient (51) that closely glides with the slide way (1), and shapes a fixed angle with the slide way flank (ii); The slide way (1) has a block stop (6) located in the sliding end where in accordance with the location of slide block (6) when the window closed; The block stop (6) has an inclined plane (61) that assorted with the plane salient (51); The inclined plane (61) and the flank (11) of slide way (1) transited by a cambered surface; The flank (11) of slide way (1) has a notch (12) that is in accordance with the plane salient (51) to get across when the short rod folds.
2. A window switching hinge as claimed in Claim 1, wherein between the short rod (5) and the slide block (2) there is a locating device, which includes a salient (52) in the short rod (5), a locating surface in the salient (52) that parallels with the flank (11), and a location block (21) in the slide block (2) that in accordance with the location surface.
3. A window switching hinge as claimed in Claim 1 or Claim 2, wherein the short rod (5) has a location bump (53), whose inner side will against with the slide way flank (11) after the short rod completes the folding.
4, A window switching hinge as claimed in Claim 1 or Claim 2, wherein the short rod (5) is made up by plastic materials, and inside the short rod (5) has metallic reinforcing rib.
5. A window switching hinge as claimed in Claim 3, wherein the short rod (5) is made up by plastic materials, and inside the short rod (5) has metallic reinforcing rib.
6. A window switching hinge as claimed in Claim 1, wherein the fixed angle is at an angle of about 45 degrees.