ES2279328T3 - JOINT ACCESSORY FOR A PIVOT WINDOW. - Google Patents

Abstract

An articulation accessory for a pivoting window with a frame and a frame connected to the frame on an articulation axis, comprising a first articulated part (1) to be secured in the frame and a second articulated part (3) to be secured in the frame, in which the first articulated part (1) on a base plate (2) is provided with a control means in the form of a guide shaped as a circular arc (7) that cooperates with a gear assembly that it comprises a sliding bar (8) essentially similar to the guide and rotatably mounted on a base plate (4) so that the second articulated part (3) and a guide pin (10) provide a pivoting movement for the window, and in which in relation to the guide (7) in the first articulated part (1), a braking device is provided with a leaf spring (15) which, during at least a part of the pivoting movement, is friction engaged with at least one item of the gear assembly in the second articulated part (3), characterized in that, the leaf spring (15) is provided with at least one retention point (15a, 15b, 15c) to engage with at least one element of said gear assembly in the second articulated part (3) during the pivoting movement in at least one predefined intermediate position.

Description

Window joint accessory pivoting

The present invention relates to a articulation accessory for a pivoting window with a frame and a frame connected to the frame on an articulation shaft, which it comprises a first articulated part to be secured in the frame and a second articulated part to be secured on the frame, in which the first part articulated on a base plate is provided with a control means in the form of a guide conformed to way of a circular arc that cooperates with a gear set comprising a slide bar essentially similar to the guide and mounted rotationally on a base plate so that the articulated second part and a guide pin provide a pivoting movement for the window, and in which in relation to the guide in the first articulated part, a braking device with a leaf spring which, during minus a part of the pivoting movement, it is engaged by friction with at least one element of the gear assembly in the Second articulated part.

Said joint accessory is used to a pivoting window, for example a roof window, for provide a pivoting movement, that is the frame rotates around a joint axis at a distance from the member upper and lower, alternately the lateral members, of the frame and frame. The articulation accessory comprises two extreme positions, among which one or more are defined intermediate positions Extreme positions include a position in which the pivoting window is closed and a position in which the window frame and thus the second part articulated is turned out to a maximum in relation to the closing position

EP 1038083 describes a joint accessory of the stated type which, by means of a leaf spring that friction gear with a guide pin, retains the window pivoting in an infinitely variable friction gear during a part of the pivoting movement of the window from the closed position to open position.

EP 0165954 describes a joint accessory in which the braking effect is optimized by means of a spring waveform placed on the side of the spring dock no oriented towards the guide.

Even though this form seemed to be satisfactory, the problem is, however, that a strong wind can take the open pivoting window of the position in which the user has placed.

However, it is also desired to have one or more fixed intermediate positions in the pivoting movement so that the user can select between several fixed positions of the window and adjust the ventilation without using an adjustment arm or Similar.

WO 01/31155 indicates a joint for a pivoting window in which the parts of the guide and / or the bar Sliding are all formed of a sturdy plastic material to wear In one embodiment without a leaf spring, the articulation comprises said fixed intermediate positions, being the convex side of the guide provided with grooves, so that a friction gear safer be obtained in those places.

These slots are designed as a part integrated guide. Since a large part of the joint is exposed to a considerable load, it wears out, which means that the joint as a whole loses its capacity functional before the expiration of the life of the remaining parts of the joint. Therefore, it will usually be necessary replace the entire joint or at least most of the same, which brings with it the cost of a new joint and the work that trained personnel should do. Besides, the joint will have to be produced in several different ways to meet the demands regarding the number / situation of the ventilation positions.

Therefore, the object of the invention is provide an articulation fitting of the indicated type initially that allows to obtain a generally longer life of articulation and greater freedom of selection in terms of ventilation positions.

This objective is obtained with an accessory of articulation characterized in that the leaf spring is provided with at least one retention point for the gear with at least one element of said gear assembly in the second part articulated during the pivoting movement.

The invention provides an accessory of joint to solve the problems of loss of capacity functional due to tearing and wear on the gear element which comprises one or more retention points since the spring of crossbow is not an integrated part of the guide, the designation "leaf spring" being understood as an element of spring separated from the joint. This may in this way be replaced if it is spent before the remaining parts of the joint This causes considerably less costs of work in relation to the replacement itself since this is a simple task that can be performed for example by one's own Username. Since the invention also allows avoiding the need for complete joint replacement or at least most of the parts of this, the costs are consequently reduced, the leaf spring being a relatively low cost element compared to the expenses of a completely new joint. He joint lifespan is thus prolonged in a way which is cheaper and easier in terms of assembly.

The leaf spring is not a part integrated guide, provides the user with the additional advantage that it can easily and inexpensively select the number of fixed positions, the leaf spring being merely selected according to this number, both by the initial assembly of the pivoting window as per the replacement of the leaf spring in the pivoting window mounted. The user you can for example select two or three retention points in the crossbow spring resulting in two and three, respectively, predefined intermediate positions of the window pivoting In addition, the user can select a spring from crossbow that is for example tighter or looser so that special requests from for example older people With less strength can be fulfilled. Obviously, the pier of initially selected crossbow is replaceable by a spring new or different crossbow if this is required at any time dice.

In a preferred embodiment of the invention, each retention point comprises a groove that is designed of so that at least one element of said gear assembly is adapted to be moved in and held in a gear by safer friction in the groove.

In this way, the joint accessory is provided to retain the pivoting window in a position fixed intermediate by means of a secure friction gear between at least one element of the gear assembly in the second part articulated and at least one groove of the leaf spring. He more secure friction gear in at least one groove of the spring of crossbow provides the user with the advantage that the window it can be placed in the same position whenever desired, and of this way give the same opening for ventilation. Is a additional advantage that the user can easily and quickly select a desired ventilation position, the fixed positions predetermined and easily perceived by the user during pivoting movement.

Since the user has to use a force considerable to remove the pivoting window out of said friction gear safer, the invention has the advantage additional in relation to the wind load, that the window does not it opens or moves through a breath of wind from the position of ventilation selected when placed on this gear by friction safer.

In a further development of the realization preferred of the invention, the guide pin is the element of the gear assembly in the second articulated part that gears by friction with the leaf spring.

In a particularly preferred embodiment, the guide pin is in a section in front of the leaf spring provided with an outstanding portion to better secure the guide pin in the groove.

In a second embodiment of the invention, the sliding bar is the element of the gear assembly in the second articulated part for friction engagement with the spring crossbow. The sliding bar is provided with at least one protruding portion for friction engagement with said at least a leaf spring spring, and a sliding block is provided with a corresponding longitudinal groove for the passage of the slide bar with the protruding portion during the pivoting window movement.

In a further embodiment of the invention, the guide pin and slide bar engage friction with the leaf spring.

In a preferred embodiment, the spring of crossbow is provided with two to six slots, preferably five.

The leaf spring can be produced from other material compared to the material from which one or more of the remaining parts of the joint are made. The other material can be for example a softer material to reduce the tear and wear of the gear assembly element in the second articulated part that frictionally engages the spring crossbow. The material can be plastic or any other appropriate material with said properties.

In an alternative embodiment, each point of retention comprises a bulky portion, and said set of Gear is provided with at least one corresponding groove.

In another aspect of the invention, a window is provided with a set of those two articulation accessories, and the use of such articulation accessories in a window.

Next, the invention will be explained with more details with reference to the schematic drawing, where

Fig. 1 shows a schematic side view of an embodiment of the articulation accessory according to the invention,

Fig. 2 is an exploded perspective view schematic of a second embodiment of the articulation accessory according to the invention,

Fig. 3 is a schematic plan view of Large scale of a detail of the joint fitting according to the invention in Fig. 2, and

Fig. 4 is a schematic sectional view of a portion of the joint fitting according to a alternative embodiment of the invention.

In the following description, the same numbers of reference are used for similar elements in the described embodiments.

Fig. 1 shows an articulation accessory for a pivoting window comprising a first part articulated 1 which is together with the base plate 2 adapted to be secured on a side member not shown for the frame of the window, and a second articulated part 3, which is also provided with a base plate 4 to secure it on a side member of the similar frame and not shown. It should be noted that the parties individual such as the base plate 4 of the second part articulated 3, are made transparent in Fig. 1 with a view to the readability of the drawing. It is also obvious that an accessory of corresponding but inverse joint is mounted on the pair opposite of the side frame members or the frame for determine a pivot axis essentially parallel to the members upper and lower frame or frame.

On the motherboard 2 of the first part articulated 1, a flat piece 6 is secured by means of rivets or screws 5 and at a distance from the motherboard 2 and is provided with a circular groove constituting a control means or a guide 7 for a slide bar 8 essentially similar to the guide and  arranged in the second articulated part 3 during a part of the closing and opening movement of the window. Guide 7 includes a convex side or wall 11 and a concave side or wall 12. The bar slide 8 is by means of an articulated pin 9 connected of pivoting way to the base plate 4 of the second articulated part 3 which also has a guide pin 10, whose function will be explained then.

The convex side or wall 11 of the guide 7 In addition to the flat part 6, it comprises one or more slides between the flat piece 6 and the base plate 2, and which together with the flat piece forms a support face for the slide bar 8 and the guide pin 10. On the convex side 11 of the guide 7 between the part flat 6 and the base plate 2, a spring mechanism is inserted with a leaf spring 15 which is bent at the ends fastened to two rivets 5 on this side, and which is more curved than the guide 7 so that the center portion thereof is projected more in the guide and so it is located some distance from the side convex 11. The spring of spring 15 is provided with one or more retention points, in the embodiment shown in Fig. 1 is in shape of a bulky portion 15c, to engage with the element of the gear set that gears with the leaf spring during the pivoting movement of the window. In the embodiment shown, the slide bar 8 can for example be provided with at least a corresponding slot so that the bulging portion and the groove engage each other during the pivoting movement of the window to be placed in a ventilation position.

In the position shown in the figure, the window frame and therefore the second articulated part 3 they are rotated at an opening angle of about 135º from the closing position, for example with a view to cleaning the outside of window.

The slide bar 8 is displaced to the maximum outside the guide 7, that is until a stop pin 13 in the Sliding bar 8 hooks into a cavity 14 in the flat part 6. The base plate 4 is then further rotated around the articulation pin 9, when the window is closed again, this motherboard 4 is not returned until the guide pin 10 has entered the guide 7 where it remains facing the end front of the slide bar 8. At the same time, a pin drive 9a drives the slide bar 8 to a position on the base plate 4, whose position is fixed during the remaining part of the process of closing the window again. The pin of drive 9a can be designed as a portion bent towards above the motherboard 4. To minimize noise, the pin drive 9a may be provided with a bushing component separated in for example plastic, so that less is produced noise when the drive pin 9a comes into contact with the rear portion of the slide bar 8. It is also possible to design one or more parts of the first and / or second part articulated as bent up portions of the relevant motherboard. For the additional closure, the guide pin 10 and the slide bar 8 are displaced inwards in the guide, where a sliding block 20 with a sliding face 21 is first passed, and at least one gear assembly element in the second sliding part 3 cooperates with braking effect with spring 15 when this gear by friction with it, being stopped the Closing movement of the window frame.

In an embodiment of the mentioned invention further down, the guide pin 10 constitutes the element of the assembly of gear in the second articulated part 3 which friction gears with leaf spring 15. The guide pin can, however, have different forms those described below in relation to to Figs. 3 and 4.

The view exploited in Fig. 2 shows a second embodiment of the invention in which a mechanism of spring is inserted in the concave side 12 between the flat part 6 and the base plate 2 and comprises a leaf spring 15 that is attached at the bent ends on the outermost part of the rivets 5 on this side and which is less curved than guide 7, of so that the center portion is projected as far as possible inside the guide and so it is located at a certain distance from the side concave 12. Spring 15 is provided with at least a slot 15a, 15b, preferably between two and six slots 15a, 15b, more preferably five slots 15a, 15b. As shown, crossbow spring 15 may for example be provided with five slots, of which the outermost groove 15b located at the guide entry serves as a slope for guide pin 10 once you have entered guide 7. This causes one more entry easy on guide 7, the guide pin essentially having a free space in the first part of the guide 7. Overlooking the assembly, the leaf spring 15 may be provided with such pendant groove 15b at the end of both ends so that the spring 15 is not turned by chance in the wrong address during assembly. The spring of spring 15 can be subjected to a coating providing or facilitating the desired properties of it. For example the dock of crossbow 15 can be treated with Benzinal® preventing rust.

The spring spring 15 can also be subjected to a coating resulting in a strengthening of the leaf spring 15.

To reduce noise, spring 15 can be adjusted tightly around the rivets of so that the leaf spring is not loose and can not do so noise.

As an example, slots 15a, 15b in the leaf spring 15 can be provided in the form of a adapter unit that can be arranged in a leaf spring existing without the desired profile, for example without any slot. The adapter unit can be provided with any desired profile in such a way that when provided with a leaf spring existing 15, it can provide a desired number of slots 15a, 15b.

In addition, crossbow spring 15 may be provided with areas of a material that is softer than the rest of the leaf spring 15, so that the grooves 15a, 15b are formed by the deflection and / or compression of this other material caused by the contact between the element of the set of gear that meshes with spring 15 and such a zone.

Fig. 3 shows a first embodiment of the guide pin 10 which is provided with an protruding portion 10a  to better secure the guide pin 10 in the groove 15a. Serving overhang 10a extends over a part of the axial extension of the guide pin 10 so that a good gear is secured between the guide pin 10 and the leaf spring 15 and the grooves 15a thereof, and at the same time the guide pin 10 can pass the sliding block 20 and guide 7.

In an alternative embodiment, the guide pin 10 may be provided with a square pin to be mounted on the base plate 4 of the second articulated part 3, the plate being base consistently provided with a corresponding hole.

The guide pin 10 can be produced from a material that is different from that of the remaining parts of the joint, such as solid bronze, which makes the guide pin 10 more resistant to tearing and wear.

Alternatively, guide pin 10 may be provided with a separate bushing component that extends essentially over the full axial extension of the guide pin 10. Such guide pin device can for example be designed from the manner shown in EP 1038083 B1.

In addition, the guide pin 10 may be provided with a separate bushing component as mentioned above, where the bushing component is produced from a softer material, such as plastic.

In Fig. 4, a second embodiment of the invention is observed, where the slide bar 8 forms the gear assembly element in the second articulated part 3 friction gear with leaf spring 15. The bar Slider is provided with at least one protruding portion 8a for friction gear with at least one groove 15a of the leaf spring 15. The sliding face 21 which is opposite with relation to the slide bar 8 during the pivoting movement of the window is provided with a longitudinal groove 22 that corresponds to the protruding portion 8a and which allows the al minus an overhanging portion 8a of the slide bar 8 pass during the pivoting movement of the window. Fig. 3 shows the sliding bar 8 with the projecting portion 8a arranged in opposition to the sliding block 20, as observed during a part of the pivoting movement of the window. The longitudinal groove 22 is sized so that an appropriate passage of light for the at least one protruding portion 8a is present during the pivoting movement

Alternatively, the gear with the spring of crossbow 15 is obtained so that the slide bar 8 is provided with a spring-loaded ball that meshes with the spring of crossbow 15 for at least part of the movement pivoting

It should be understood that the invention is not limited to the embodiments shown in the drawing and mentioned previously.

Claims (12)

1. An articulation accessory for a window pivoting with a frame and a frame connected to the frame on an axis of articulation, which comprises a first articulated part (1) to be secured in the frame and a second articulated part (3) to be secured in the frame, in which the first articulated part (1) about a base plate (2) is provided with a control means in the form of a guide shaped like a circular arc (7) that cooperates with a gear assembly comprising a sliding bar (8) essentially similar to the guide and rotatably mounted on  a base plate (4) so that the second articulated part (3) and a guide pin (10) provide a pivotal movement for the window, and in which in relation to the guide (7) in the first part articulated (1), a braking device with a leaf spring (15) which, for at least part of the pivoting movement, is friction engaged with at least one gear assembly element in the second articulated part (3), characterized in that, the leaf spring (15) is provided with at least one retention point (15a, 15b, 15c) for engaging with at least one element of said gear assembly in the second articulated part (3) during the pivoting movement in at least one predefined intermediate position. 2. An articulation accessory according to the claim 1, characterized in that each retention point comprises a groove (15a, 15b) that is designed so that at least one element of said gear assembly is adapted to be moved in and retained in a more secure friction gear in the groove ( 15a, 15b). 3. An articulation accessory according to claim 2, characterized in that the guide pin (10) is the element of the gear assembly in the second articulated part (3) that frictionally meshes with the leaf spring (15). 4. An articulation accessory according to one of claims 2 and 3, characterized in that the guide pin (10) is in a section in front of the leaf spring provided with an protruding portion (10a) to better secure the guide pin ( 10) in the groove (15a, 15b). 5. An articulation accessory according to one of claims 2-4, characterized in that the sliding bar (8) is the gear assembly element in the second articulated part (3) for friction engagement with the leaf spring ( 15) and is provided with at least one projecting portion (8a) for friction gearing with said at least one groove (15a, 15b) of the leaf spring (15), and because a sliding block (20) is provided with a Corresponding longitudinal groove (22) for the passage of the sliding bar (8) with an protruding portion (8a) during the pivoting movement of the window. 6. An articulation accessory according to one of claims 2-5, characterized in that the guide pin (10) and the sliding bar (8) engage frictionally with the leaf spring (15). 7. An articulation accessory according to one of claims 2-6, characterized in that a separate bushing component is disposed on the guide pin (10). 8. An articulation accessory according to one of claims 2-7, characterized in that the leaf spring (15) is provided with two to six grooves (15a, 15b) facing the guide, preferably five grooves (15a, 15b). 9. An articulation accessory according to one of claims 1-8, characterized in that at least the side of the leaf spring (15) facing the guide (7) is produced from a material which is alternative in relation to one or more of the remaining parts of the joint, and which is preferably softer than one or more of the remaining parts of the joint, where the material is preferably plastic. 10. An articulation accessory according to claim 1, characterized in that each retention point comprises a bulging portion (15c), and said gear assembly is provided with at least one corresponding groove. 11. A window with a joint accessory where the window frame is connected to the window frame by means of a set of joint accessories, and the placement of the joint accessory set on the frame and the frame defines an axis of rotation for the window, characterized in that said assembly comprises two articulation accessories according to one of claims 1-10. 12. Use of an articulation accessory according to any of claims 1-10 in a window with frame and frame.