Innovatively designed handle for window frame
The new handle mechanism solves the problems of bulky and unsightly window frame handles, achieving a compact design and flexible adjustment of the rod travel length, suitable for different types of window sashes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AISIN PLUS CO LTD
- Filing Date
- 2024-08-14
- Publication Date
- 2026-04-28
AI Technical Summary
Existing window frame handle designs are bulky and aesthetically unappealing, and the traditional design has a limited rod travel length, making it difficult to adjust flexibly.
A novel handle mechanism has been designed, including an operating handle component and a housing. A bevel gear connected to a square pin via a spherical body drives a scissor lever to achieve alternating movement of the window sash rod. The mechanism can be operated from outside the window sash pillar, and the rod stroke length is adjustable.
It achieves a compact and aesthetically pleasing design with a minimized housing size, while avoiding changes to the window sash pillar structure. The pillar stroke length is adjustable, making it suitable for right- or left-opening windows.
Smart Images
Figure CN121941822A_ABST
Abstract
Description
Technical Field
[0001] This industrial invention patent application relates to an innovatively designed handle for a window frame. Background Technology
[0002] After a brief introduction to the relevant prior art and its most relevant disadvantages, the features and advantages of the present invention will become apparent.
[0003] As is well known, most window frames use a two-bar opening and closing system for their leaves (i.e., windows or floor-to-ceiling windows). These two bars can slide along one of the pillars of the leaf and can alternately be in the extended and retracted positions due to the action of a proper mechanism controlled by a rotating handle.
[0004] In the first configuration, when the corresponding window frame is closed, the two rods protrude from the upper and lower ends of the corresponding posts of the window sash (on which the aforementioned rotary handle is mounted) and slide into suitable holes provided on the window frame.
[0005] In the second configuration, when the window frame is opened, the two sliding rods are in the retracted position of the window sash pillars, thus extending from the aforementioned holes in the frame, allowing the user to freely rotate the window or floor-to-ceiling window.
[0006] Currently, there are two main types of handle designs used to achieve the operation of such window frames. The first type is commonly referred to as the "cremone handle," and is shown in the accompanying "Prior Art" diagram. Figure 5 A brief explanation was provided in the text.
[0007] In a typical Cremon handle, rotation of the handle component 100 is transmitted to a gear 101 located between two pinions 102 arranged coaxially on the window sash pillar.
[0008] Thus, the reverse rotation of the gear 101 causes the racks 102 to slide alternately, thereby alternating between their completely side-by-side position and their staggered position. This is achieved by the first rack sliding upward and the second rack sliding downward simultaneously.
[0009] On the other side of gear 101, two racks 102 support corresponding laterally arranged elements 102a, and the sliding rods of the window sash responsible for opening and closing the window frame are fixed on these elements 102a.
[0010] Therefore, it can be understood that when the handle is moved to a position where the two racks 102 are completely parallel, the two sliding rods of the window sash are in the retracted open position; and when the handle is moved to a position where the racks 102 are staggered, the two sliding rods of the window sash are in the extended closed position, as shown below. Figure 5 As shown.
[0011] While this window frame opening / closing mechanism, based on the use of Cremon handles, is highly efficient and reliable, its drawback is that it is rather bulky.
[0012] In this case, the handle part 100 of the handle actually engages with a plate 103 (also known as a “shell” in the industry terminology) mounted on the corresponding window sash post, which is typically quite large (which is generally considered aesthetically unappealing) precisely because it must be able to accommodate two racks 102 and corresponding gears 101.
[0013] On the other hand, the second traditional type of window handle, specifically designed for window frames made of tubular metal sections, is known as the "martellina handle".
[0014] In this case, the handle is inserted into the slot of the square pin on the window sash, thereby operating the gear and rack mechanism located in the column, thus realizing the alternating movement of the two rods of the window sash.
[0015] Thanks to this design (which integrates the mechanical components into the hollow structure of the corresponding window sash pillars), the Mattelina handle benefits from its very small housing, resulting in a linear and pleasing aesthetic profile.
[0016] On the other hand, the structure of the window frame is very complex because the mechanism for the alternating movement of the sliding rods of the window frame is located inside the uprights of the window frame.
[0017] Finally, it must be considered that Cremona handles and Mattelina handles are best designed and implemented to always apply approximately 17 mm of travel to the two rods responsible for closing the window frame when transitioning from the retracted open position to the extended closed position, as this measure is generally accepted in the prior art. Summary of the Invention
[0018] It was the critical observation of the two technologies mentioned above that led to the conception of this new invention, the main purpose of which is to provide a handle for a window sash in a window frame, the window sash of which is equipped with a mechanism specifically designed for operating a sliding rod. This mechanism is completely innovative, and most importantly, extremely compact, and suitable for operation outside the column structure of the window sash in the window frame.
[0019] This solution offers a dual advantage: it minimizes the housing size of the new handle in question (similar to the housing of the Matellina handle) while avoiding alterations to the frame structure of the window sash pillars (similar to the housing of the Cremona handle).
[0020] Another object of the present invention is to make the new handle extremely versatile, and to make it easy to install on window sashes that rotate to the right or left.
[0021] The ultimate goal of this invention is to provide a handle that can easily change the alternating stroke length of the two rods of a window frame, thereby avoiding the aforementioned limitation of 17mm that is common in handles on the market.
[0022] The above-described typical objectives of the present invention have been achieved according to the features listed in the appended independent claim 1.
[0023] Advantageous embodiments of the invention can be seen from the dependent claims. Attached Figure Description
[0024] To explain the invention more clearly, the following description will continue with reference to the accompanying drawings, which are for reference only and are not restrictive, wherein:
[0025] - Figure 1 Axonometric view of the new handle in the open position;
[0026] - Figure 1A yes Figure 1 Exploded view;
[0027] - Figure 1B This is another exploded view of the handle, seen from the inside.
[0028] - Figure 2 Axonometric view of the new handle in the closed position;
[0029] - Figure 2A yes Figure 2 Exploded view;
[0030] - Figure 3A yes Figure 1 Axonometric drawing of the handles installed on the corresponding window frame posts;
[0031] - Figure 3B Similar to the previous image, except that it shows the handle in question already installed on the post;
[0032] - Figure 4A The diagram illustrates the working pattern between the lever of the handle in question and the corresponding window frame's open / close lever when the handle is in the open position.
[0033] - Figure 4B Similar to the previous image, except that it shows the handle mentioned earlier in the closed position. Detailed Implementation
[0034] like Figures 1 to 2AAs shown, according to the present invention, the handle M typically includes an operating handle component 1 and a housing 2, which is connected to the outside of one of the pillars L of the window sash of the corresponding window frame.
[0035] The handle component 1 includes a grip 1a and a spherical body 1b, the spherical body 1b being arranged at a 90° angle to the grip 1a; wherein, the center of the spherical body 1b is provided with an axial hole 1b' of a square cross section.
[0036] The housing 2 has an arcuate profile and includes two generally semi-circular side surfaces 2a that surround a circular central surface 2b. A cylindrical protrusion 20 is provided at the center of the central surface 2b, and the cylindrical protrusion 20 is protruding through the center by a circular hole 20a.
[0037] The handle component 1 is adapted to apply reverse rotation to the bevel gear 3 protruding from the square pin 30, which is connected to the gear 3 via a cylindrical shoulder 31.
[0038] During use, the gear 3 is installed inside the housing 2, and its shoulder 31 is rotatably engaged in the central hole 20 of the housing 2, while the square pin 30 protrudes from the outside of the housing 2, thereby connecting with the axial square hole 1b' prism of the spherical body 1b of the handle component 1.
[0039] The gear 3 is adapted to operate a pair of counter-rotating levers that operate in a generally scissor-like manner, wherein the pair of levers includes a first lever 4 and a second lever 5 that reciprocate and pivot relative to a transverse pin 6 that screws into suitable holes 40, 50 provided on the levers 4, 5, and, during use, the ends 6a, 6b of the pin 6 protrude from the outside of the levers 4, 5.
[0040] Through observation Figure 1B and Figure 2A The presence of pin 6 can be detected.
[0041] The first lever 4 includes:
[0042] -The central part 4a is basically composed of side-mounted plates;
[0043] - The rounded tip 4b is higher than the center part 4a;
[0044] -Protruding side arm 4c, which is perpendicular to plate 4a;
[0045] - Component 41, which is laterally supported by the arm 4c, wherein the component 41 is generally configured as a sector of a bevel gear.
[0046] The second lever 5 includes:
[0047] -The central part 5a is basically composed of side-mounted plates;
[0048] - The rounded tip 5b is higher than the previously mentioned center part 5a;
[0049] - Component 51, which is similarly configured as a sector of a bevel gear.
[0050] In this case, it can be envisioned that the two aforementioned components 41, 51 of levers 4 and 5 should be arranged in such a way that their corresponding conical tooth profiles 41a, 51a face each other and the spacing allows gear 3 to mesh.
[0051] In fact, it should be considered that during use, the pivot pins 6 of the two levers 4 and 5 are perpendicular to the longitudinal axis of the square pin 30 of the gear 3.
[0052] During use, the two levers 4 and 5 are adapted to be partially installed inside the housing 2, with their gear components 41 and 51 arranged on both sides of the gear 3, while the central portions 4a and 5a of the levers 4 and 5 and their corresponding tips 4b and 5b protrude from the housing 2 to the other side of the handle component 1.
[0053] In this regard, refer again Figure 1B Based on the observation results, it was determined that two horizontal recesses 2a' with a generally C shape are provided at the leading edge of both sides 2a of the housing 2, the horizontal recesses 2a' being adapted to accommodate and support the ends 6a, 6b of the pins 6 protruding from both sides of the mating rod pair 4, 5.
[0054] Next, this article will combine Figures 3A to 4B Let me explain how to operate the new handle M.
[0055] Referring to the accompanying drawings, it is conceivable that the handle M can be alternately positioned in the open and closed positions. When transitioning from one position to the other, the handle component 1 of the handle M rotates 90° in the opposite direction. This rotation angle is suitable for transmitting the rotation to the bevel gear 3, and from the gear 3 to the two levers 4 and 5.
[0056] Figure 1 and Figure 1A The handle M is shown in the open state of the window frame IN. At this time, the handle M is in a horizontal position and perpendicular to the corresponding post L of the window frame IN.
[0057] In this configuration, the two levers 4 and 5 in handle M are in the "closed" position, fully aligned with each other, and located outside the housing 2.
[0058] Figure 2 and Figure 2A The handle M is shown in the closed position of the window frame. At this time, the two levers 4 and 5 are located outside the housing 2 and are in the bifurcated position.
[0059] Figure 3A and Figure 3B The diagram illustrates the interaction between levers 4 and 5 of the handle M according to the invention and a conventional pair of sliding rods A1 and A2 housed in the post L of the window frame IN, for opening and closing the sliding rods facing the respective frame.
[0060] In this regard, it should first be considered that the front longitudinal edge of the column L is provided with a longitudinal groove AL, which is located at the position where the housing 2 of the handle M is screwed in.
[0061] like Figure 3A As shown, the groove AL is adapted to be passed through by levers 4 and 5 of the handle M. At this time, since the handle part 1 of the handle M is kept in the open position (i.e. perpendicular to the axis of the column L), the two levers 4 and 5 are still kept in the side-by-side position.
[0062] Figure 3B It shows how the two levers 4 and 5 are respectively installed in the corresponding seats S1 and S2 at the upper end of the first sliding rod A1 and the lower end of the second sliding rod A2.
[0063] although Figure 4A It is very brief, but it displays the operating conditions and Figure 3B The same applies, meaning that the two levers 4 and 5 are arranged side by side, which corresponds to the open state of handle M.
[0064] on the other hand, Figure 4B This shows the bifurcation positions of levers 4 and 5 when the handle component 1 of handle M rotates 90° from top to bottom and reaches a position parallel to the post L of window frame IN.
[0065] This bifurcation of levers 4 and 5 causes the two sliding rods A1 and A2 of the window frame IN to slide in opposite directions (the first upward, the second downward), thereby locking the latter onto the corresponding frame.
[0066] It should be noted that, in this case, the round tips 4b and 5b of the two levers 4 and 5 facilitate the reverse stroke of the two rods A1 and A2, which work in the same way as the cams in the rod seats S1 and S2.
[0067] It goes without saying that the rotation of handle component 1 of handle M (opposite to the previous rotation) will cause the two rods A1 and A2 to slide in the opposite sliding direction to the previous one, thereby eliminating the stop position of the rods A1 and A2 facing the window frame IN.
[0068] At this point, attention is once again drawn to Figure 2 This allows for a better understanding of the main advantages offered by the present invention in reducing the height of the housing 2 that mates with the new handle M.
[0069] In fact, such graphical contributions make it possible to determine how to limit the height of housing 2 within the space required to allow levers 4 and 5 to bifurcate.
[0070] It should be noted that, unlike the Cremona and Mattelina handles mentioned above, the new handle M can easily change the travel length of the sliding rods A1 and A2 mounted on the post L of the corresponding window frame IN.
[0071] In fact, in a preferred embodiment of the invention, the ratio of the conical gear 23 to the two toothed components 41, 51 of the levers 4, 5 is set to allow the two levers 4, 5 to unfold, thereby applying reverse motion (i.e., upward and downward motion) to the two rods A1, A2 of the window IN, with a standard length of 17 mm.
[0072] However, a simple change in the ratio of gear 23 to the tooth sector 41, 51 makes it possible for the tilt angle applied to levers 4, 5 to change during the bifurcation process, thereby causing the aforementioned reverse stroke length of the rods A1, A2 of the window frame IN to change.
[0073] In this regard, it should be noted that the change in the ratio between gear 23 and tooth sectors 41 and 51 can be achieved by changing the radii of gear 3 and tooth sectors 41 and 51.
[0074] On the other hand, regarding the fact that the new handle M can be advantageously mounted on both right-hand and left-hand frames, it should be noted that this duality can be easily achieved by simply reversing the positions of the first lever 4 and the second lever 5 in the housing 2 relative to those shown in the attached figures.
[0075] In order to fully describe the new handle M under discussion, it must be pointed out that the front edge of the cylindrical protrusion 20 of the housing 2 is provided with four hemispherical recesses 21, arranged at 90° intervals, which are suitable for precise connection with the corresponding cylindrical holes 11 provided at the front of the spherical body 1b of the handle M.
[0076] The recess 21 provided in the housing 2 is adapted to selectively accommodate (two at a time) a pair of spheres 22 spaced 180° apart, while the cylindrical hole 11 provided in the spherical body 1b is adapted to accommodate two helical springs 23, which are adapted to permanently push the spheres 22 toward the direction of the hemispherical recess 21.
[0077] The purpose of these balls 22 is to determine and stabilize the position of the handle component 1 in the open and closed postures when they fall into a pair of recesses 21 (thereby being located between the housing 2 and the handle component 1).
Claims
1. A handle (M) for a window frame, comprising: - A handle component (1) for opening and closing, comprising a grip (1a) and a spherical body (1b) disposed at a 90° angle relative to the grip (1a); wherein the spherical body (1b) has an axial hole (1b') with a square cross-section at its center. - The housing (2) includes two sides (2a), each side defining a central surface (2b) having a central hole (20a) at its center; - Gear (3), which is housed in the housing (2) and includes a square pin (30) that is rotatably inserted into the circular hole (20a) of the housing (2) and precisely engaged in the axial hole of the spherical body (1b) of the handle component (1); - A device operated by the reverse rotation of the gear (3) housed in the housing (2) and adapted to be connected to sliding rods (A1, A2) housed in the column (L) of the window frame (IN) to apply alternating reverse longitudinal movements to the rods (A1, A2) respectively, thereby locking and unlocking the window frame (IN) relative to the respective window frame. The handle (M) is characterized by: - The gear (3) is a bevel gear; - The device driven by the reverse rotation of the gear (3) is used to operate the sliding rod (A1, A2) of the window frame (IN). The device includes a first lever (4) and a second lever (5), which are pivotally connected in a scissor configuration to a transverse pin (6) orthogonal to the axis of the square pin (30) of the gear (3). The first lever (4) has a protruding side arm (4c) at its rear, which supports a laterally arranged component (41) which is composed of the sector of a bevel gear. The second lever (4) has a similar component (51) at its rear, which is also composed of the sector of a bevel gear. The two components (41, 51) of the levers (4, 5) are arranged to be completely opposite to the corresponding tooth profiles (41a, 51a), with a center distance such that the tooth profiles (41a, 51a) mesh with the opposite sides of the bevel gear (3).
2. The handle according to claim 1, wherein: - The housing (2) has an arcuate profile, including two generally semi-circular side surfaces (2a) surrounding a circular central surface (2b); wherein a cylindrical protrusion (20) protrudes from the center of the circular central surface (2b), and the cylindrical protrusion (20) is pierced through the center by the through hole (20a) having a circular profile; - The square pin (30) is connected to the gear (3) via a cylindrical shoulder (31) which is adapted to slide into the hole (20a) of the housing (2) during use.
3. The handle according to any one of the preceding claims, wherein: - The pivot pin (6) of the lever (4, 5) protrudes from its two ends (6a, 6b) to both sides of the mating lever (4, 5) during use; - The front edge of the side (2a) of the housing (2) is provided with two generally C-shaped grooves (2a'), which are adapted to receive and support the ends (6a, 6b) of the pivot pin (6) of the two levers (4, 5).
4. The handle according to any one of the preceding claims, wherein, The levers (4, 5) are forward-positioned relative to the corresponding toothed components (41, 51), which have: corresponding central portions (4a, 5a) substantially composed of a plurality of laterally arranged plates; and corresponding enlarged rounded tips (4b, 5b) adapted to be forcibly inserted into corresponding seats (S1, S2) respectively provided in the sliding rods (A1, A2) of the window frame (IN) during use.
5. The handle according to any one of the preceding claims, wherein, The first lever (4) and the second lever (5) are adapted to be in reverse position on both sides of the gear (3), so that the handle (M) can be used alternately for the right-opening window frame and the left-opening window frame.
6. The handle according to any one of the preceding claims, wherein, The front edge of the cylindrical protrusion (20) of the housing (2) is provided with four hemispherical grooves (21) arranged at 90° intervals, and the front end of the sphere (1b) of the handle component (1) is provided with a corresponding cylindrical hole (11) adapted to connect with the groove (21) of the protrusion (20); wherein the hemispherical groove (21) is adapted to selectively accommodate a pair of balls (22) spaced 180° apart according to the reverse rotation of the handle component (1), and wherein the cylindrical hole (11) is adapted to accommodate a corresponding helical spring (23) adapted to permanently push the ball (22) toward the hemispherical groove (21).