EP1859117A1

EP1859117A1 - Hinge

Info

Publication number: EP1859117A1
Application number: EP06704361A
Authority: EP
Inventors: Luciano Salice
Original assignee: Arturo Salice SpA
Current assignee: Arturo Salice SpA
Priority date: 2005-03-14
Filing date: 2006-01-24
Publication date: 2007-11-28
Anticipated expiration: 2026-01-24
Also published as: SI1859117T1; WO2006097157A1; KR101069098B1; TWI291513B; TW200702539A; CN101137812A; KR20070114205A; ATE471425T1; CN101137812B; EP1859117B1; US20060200944A1; ES2346077T3; US20080209681A1; DE502006007229D1; US7966695B2

Abstract

The invention relates to a hinge, preferably a furniture hinge, comprising a hinge arm which is pivotably supported on a joint axle which is non-displaceably held in a cup-shaped hinge part and which is provided with a tongue projecting beyond the joint axle or with a cam eccentric with respect to the joint axle or with a control edge which slide on a leaf spring whose one end region is held at the pivotable hinge part and which generates a closing torque in the closing region. In accordance with the invention, the leaf spring has at least two portions of different widths, with the at least one narrower portion of the leaf spring passing through a center recess of the hinge arm, with a tongue being cut from the lower edge of said recess. The at least one wider portion of the leaf spring is pressed against the base of the hinge cup by a transversely extending pin and thus fixedly held by a transversely extending pin.

Description

Art uro Salice S.p.A. 1-22060 Novedrate

hinge

The invention relates to a hinge, preferably furniture hinge, consisting of a hinge arm which is pivotally mounted on a non-displaceably held in a cup-shaped hinge part hinge axis and provided with a hinge axis projecting tongue or eccentric to the hinge axis cams or a control edge on a with an end region on the pivotable hinge part held and sliding in the closing area a closing moment generating leaf spring slide.

A well-known from DE 36 01 682 A1 hinge of the type specified above has a leaf spring, the bent end held in a slot in the bottom of the pot-shaped hinge part and the middle part is supported against a laterally projecting into the hinge pot pin such that the resilient End of the leaf spring acts on a control edge of the hinge arm. The lateral arrangement of the leaf spring reduces the width of the hinge arm and therefore also the strength of the entire hinge. Also, the lateral arrangement of the leaf spring requires that it can be made only narrow. It follows that no great closing moment can be generated. From US 5,546,956 A an embodiment of the above-explained hinge is known in which the leaf springs have two-sided tongues, which are also made narrow and in which the leaf spring itself is held fast by a rivet on the bottom hinge cup. This also requires that the leaf spring disclosed there can not exert a large closing moment. In addition, the leaf-spring-producing leaf spring in the hinge cup requires a lot of space, so that such a hinge is not suitable for squat embodiments, which are desirable in thin doors, for example.

From US 5,604,956 A, a wire spring is provided as the closing moment generating spring element, which is fastened in a complex manner under the bottom hinge cup. The free ends of the wire spring protrude from lateral recesses in the interior of the hinge cup in and are based on lateral cams of the hinge arm from. This embodiment is rather complicated and expensive and corresponds in its effect to a hinge according to the European patent EP 0 987 394 B1, which is based on the same applicant as the present invention.

Object of the present invention is to develop a generic hinge with easy-to-produce components, such as hinge arm and hinge cup, such that in the cup-shaped hinge part a closing moment generating leaf spring can save space in a simple and thus economical manner, at the same time the Spring properties of the leaf spring to achieve the best possible function of the hinge to be exploited.

This object is solved by the features of claim 1. Accordingly, there is a hinge of a hinge arm which is pivotally mounted on a non-displaceably held in a pot-shaped hinge part hinge axis. With a tongue projecting the hinge axis or a cam or a control edge which is eccentric to the hinge axis and which is mounted on a pivoting hinge part with an end region and a closing region in the closing region Sliding moment generating leaf spring slide. According to the invention, the leaf spring has at least two sections of different width, wherein the at least one narrower section of the leaf spring passes through a central recess of the hinge arm, from the lower edge of a tongue is cut out, and that the at least a wider portion of the leaf spring by a transverse pin against the bottom of the hinge cup is pressed and held so.

Preferred embodiments of the invention will become apparent from the subsequent claims to the main claim.

Accordingly, the at least one narrower section of the leaf spring can have an elongated rib up to the transition region of the at least one broader section of the leaf spring. This means that the rib extends along the leaf spring. Because of this longitudinally extending rib, the bending of the leaf spring does not occur in its narrower section, but in the wider section, which is held at the bottom of the hinge cup. In this wider portion and the transition region leading to it, the leaf spring exerts a greater force with less bending and its life is in no way affected by possible micro-fractions originating in the manufacturing process. In addition, notches or cutouts may also be present which give the spring the desired shape and which, however, due to the rib can only slightly reduce the spring force.

Advantageously, the at least one wide portion of the leaf spring can be pressed by a transverse pin against the bottom of the hinge cup and held so.

Advantageously, the bottom of the hinge cup has a recess in the region in which the at least one broader section of the leaf spring is arranged. The distance between the transverse pin and the bottom may be smaller than the thickness of the leaf spring. The leaf spring can be at her under the Transverse pin area have a transverse recess, which optionally dips into the recess of the hinge cup and thus holds the leaf spring in its correct and centered position.

The longitudinal rib may extend to three-quarters of the length of the transition region between the at least two portions of the leaf spring.

According to a further preferred embodiment of the invention, the hinge arm may have a recess, from the lower edge of the tongue is cut out so that the lower edge of the recess next to the cut-out tongue has two sections on which the leaf spring are supported in the fully open position of the hinge can. The distance between the two sections to the hinge axis may be equal to or only slightly greater than the distance of the outer edge of the tongue to the hinge axis. Thus, while the leaf spring is supported on the tongue during the opening or closing of the hinge, it is supported on the additional two sections in the fully open position of the hinge.

According to a further preferred embodiment, the leaf spring may consist of two identical leaf springs of small thickness. In this case, the alternative provided for reinforcement rib can be omitted. Also corresponding indentations or beads need not be provided in this embodiment.

According to a further preferred embodiment of the invention, the transverse pin may have a non-circular cross-section. As a result, the transverse pin is reinforced, so that it does not bend as easily as a transverse pin with a circular cross-section.

The hinge arm preferably has, in its curved area, edges that are embossed in such a way that they are offset from the central, recessed part of the hinge arm. These embossed parts are so not in the same plane as the rest of the hinge arm. This embossing significantly improves the strength of the hinge arm.

Further features, details and advantages of the invention will be described with reference to an embodiment explained in more detail in the drawing. It shows:

Figure 1: a longitudinal section through an inventive hinge in the closed state.

FIG. 2 shows the hinge according to FIG. 1 in a state opened by about 30 °,

FIG. 3 shows the hinge according to FIG. 1 in a completely opened state;

FIG. 4 shows a plan view of the cup-shaped hinge part,

FIG. 5: a plan view of the leaf spring of the hinge,

FIG. 6 shows a side view of the leaf spring according to FIG. 5,

FIG. 7: a top view of the hinge arm,

FIG. 8: a sectional view of the hinge arm according to FIG. 7,

FIG. 9: a view corresponding to FIG. 3 of an alternative embodiment of the invention,

FIG. 10: a detail of a component of the hinge according to the invention,

11 shows a plan view corresponding to Figure 7 on a hinge arm of another type and

FIG. 12 shows a sectional view of the hinge arm according to FIG. 11. The apparent from the figures 1 to 3 hinge consists essentially of a provided with an angled hinge arm 12 which engages with its lower rolled end 14 a hinge axis 28. The hinge axis 28 is held immovably in usually in the side walls of the hinge cup 22. This hinge cup 22 is in a conventional manner in a flat blind hole, for example, a door 8, which is pivotally connected via the hinge 10 with a furniture body 6, used and connected thereto by a flange 44, which is part of the hinge cup 22 (see FIG ).

The cranked hinge arm 12 is shown in isolated representation in Figures 7 and 8. This hinge arm 12 has, as already stated, at its lower rolled end 14, which includes the hinge axis 28 in the installed state, a central recess 16, from the lower edge of a tongue 20 is cut out. The width of the tongue 20 is less than the total width of the recess 16, so that on both sides of the cut-out and bent-back tongue 20 short sections 18 are formed in the lower edge region of the recess 16.

As can be seen in particular from FIG. 8, the tongue 20 is offset from the rolled end 14 of the hinge arm, so that its manufacture is considerably simplified.

As can be seen in FIGS. 1 to 3, a transverse pin 38 is fastened to the hinge axis 28 opposite the end of the hinge cup 22 in its side walls, and a leaf spring 30 is held between the transverse pin 38 and the bottom 24 of the hinge cup 22.

In the embodiment shown here, there is a smaller distance between the transverse pin 38 and the bottom 24 of the hinge cup 22 than that of the thickness of the leaf spring 30. In this region, the bottom 24 of the hinge cup 22 has a recess 26 whose width is the leaf spring 30 equivalent. At the under the transverse pin 38 lying part, the leaf spring 30 advantageously has a transverse recess or bead 32, which partially dips into the recess 26 of the bottom 24 of the hinge cup 22 and thus holds the leaf spring in its correct and centered position.

The leaf spring 30 is shown isolated in Figures 5 and 6. It essentially has two sections 40 and 42. The section 42 is a narrower section, which merges in a transition region in the wider portion 40 of the leaf spring 30. The narrower portion 42 has a curved end portion 36. Along the narrow portion 42, a rib 34 extends as a reinforcing rib. This extends to about three quarters of the length of the transition region between the sections 42 and 40 of the leaf spring 30th

In Figure 1, the hinge according to the invention is shown in the closed position, that is, that a door 8 closes an opening of the furniture body 6.

In the figure 2, the hinge 10 is visible in its about 30 ° open position. From this position, the tongue 20 slides in the opening direction along the curved end portion 36 of the leaf spring 30, whose radius of curvature corresponds to the distance of the outer edge of the tongue 20 from the hinge axis 28, so that the spring in this pivotal region of the hinge no longer performs bending. However, before the tongue 20 reaches this angular position of 30 °, it is supported against the leaf spring 30, so that the leaf spring generates a closing moment in this closing region. In this case, the rib 34 in the narrower section 42 causes the strength of this region reinforced by the rib to be increased, so that the leaf spring 30 is bent only in the region of the transverse pin 38. In this area, the leaf spring is wider, so that here a comparatively larger force can be generated with less bending.

In the figure 3, the hinge is shown in its open position. Since the tongue 20 is made by simply bending out in a simple manner, this is not able to absorb any particularly large supporting forces of the leaf spring 20. In the open position of the hinge 10, therefore, the leaf spring 30 is supported on the side adjacent to the tongue 20 arranged edges 18 of the recess 16 of the hinge arm 12 from. The distance of these edges from the hinge axis 28 substantially corresponds to the distance of the outer edge of the tongue 20 of this hinge axis 28. The support of the spring is thus at the opening pivoting movement of the tongue 20 to the short portions 18 in the region of the recess 16 of the hinge arm 12 passed in the maximum open position shown in Figure 3, wherein the leaf spring 30 no further bending stress is impressed.

FIG. 9 shows an illustration corresponding to FIG. 3 of an alternative embodiment variant. In contrast to the embodiment variant according to FIG. 3, here the leaf spring 50 consists of two identical leaf spring parts 50 'and 50 "of comparatively smaller thickness (compare FIG. 10, in which the parts 50' and 50" are shown exploded). In this construction, the rib 34 provided in the embodiment according to FIG. 3 ff. Can be dispensed with. Also, the corresponding recesses or the bead 32, which has been described in the previous embodiment, are no longer present in the embodiment according to FIGS 9 to 12.

As can be seen further from FIG. 9, the transverse pin 58 has a non-circular cross-section, as a result of which it is reinforced and can no longer be deflected so easily. As is apparent in particular from FIGS. 11 and 12, the hinge arm 52 is stamped in its curved part in such a way that outwardly offset edges 54 adjoin the middle part 56, this middle part being provided with a recess 16.

Claims

Hinge patent claims

Hinge, preferably furniture hinge, consisting of a hinge arm which is pivotally mounted on a hinged in a cup-shaped hinge part Erten hinge axis and provided with a hinge axis projecting tongue or eccentric to the hinge axis cams or a control edge on one with an end portion on the pivotable Hinge part held and slide in the closing area a closing moment generating leaf spring,

characterized,

that the leaf spring has at least two sections of different width, wherein the at least one narrower section of the leaf spring passes through a central recess of the hinge arm, from the lower edge thereof a tongue is cut out, and that the at least a wider portion of the leaf spring is pressed by a transverse pin against the bottom of the hinge cup and so held.

2. Hinge according to claim 1, characterized in that the at least one narrower portion of the leaf spring to the transition region of the at least one wider portion of the leaf spring has an elongated rib.

3. Hinge according to claim 1 or 2, characterized in that the bottom of the hinge cup in the region in which the at least one wider portion of the leaf spring is arranged, has a recess.

4. Hinge according to one of claims 2 or 3, characterized in that the distance between the transverse pin and the bottom is less than the thickness of the leaf spring.

5. Hinge according to one of claims 2 to 4, characterized in that the leaf spring has at its lying under the transverse pin area a transverse recess, which optionally dips into the recess of the hinge cup.

6. Hinge according to one of claims 1 to 5, characterized in that the longitudinal rib extends up to% of the length of the transition region between the two portions of the leaf spring.

7. Hinge according to one of claims 1 to 6, characterized in that the tongue is cut out of the lower edge of the recess such that the lower edge of the recess next to the cut-out tongue has two sections on which the leaf spring in the fully open position supported by the hinge.

8. Hinge according to claim 7, characterized in that the distance of the two sections to the Geienkachse is equal to or only slightly greater than the distance of the outer edge of the tongue to the hinge axis.

9. Hinge according to one of the preceding claims, characterized in that the leaf spring has a curved end region in the region of its narrower portion.

10. Hinge according to one of the preceding claims, characterized in that the leaf spring consists of two identical leaf springs of small thickness.

11. Hinge according to one of the preceding claims, characterized in that the transverse pin has a non-circular cross-section.

12. Hinge according to one of the preceding claims, characterized in that the hinge arm in its curved portion has edges which are embossed such that they are offset from the central, provided with the recess part of the hinge arm.