Hinge for locking element

Abstract

Hinge for a closure element consisting of a wing part (1) and a frame part (2), wherein a pivot pin (3) is provided and the pivot pin (3) connects the wing part (1) to the frame part (2) and the wing part (1) is arranged so as to be rotatable relative to the frame part (2), wherein a first bearing bush (4) and a second bearing bush (5) are arranged on the pivot pin (3) and arrange the wing part (1) so as to be rotatable relative to the frame part (2), characterized in that the two bearing bushes (4, 5) each consist of a roller sleeve (14), wherein the roller sleeve (14) forms a first crown ledge (15) at one end and a second crown ledge (16) at the other end, wherein the first crown ledge (15) forms at least two spacers (17), wherein the at least two spacers (17) extend from a surface of the roller sleeve (14) from an interior of the roller sleeve (14). are outstandingly well-developed,wherein on the surface of the roller sleeve (14) between the first crown ledge (15) and the second crown ledge (16) ribs (1) are also formed projecting from the surface of the roller sleeve (14) away from the interior of the roller sleeve (14), wherein the roller sleeve (14) has a continuous longitudinal slot (19).

Description

Technical area

[0001] The invention relates to a hinge for a closure element according to the preamble of claim 1. State of the art

[0002] Such hinges are already known and commonly used in a wide variety of shapes and designs, for example for vehicle doors. WO 93 / 09321 A1 describes a friction hinge arrangement in which a first pivoting element is rotatably mounted on a pivot pin. This pivot pin is fixedly connected to a second pivoting element. A band is wound helically around at least a portion of the pivot pin. The band has a first end that engages the first pivoting element upon rotation, and a second end provided with an end piece. Means are also provided for exerting a controlled, variable force on the end piece, this force varying depending on the relative angular orientation of the two pivoting elements. This enables controlled tightening of the band. Object of the invention

[0003] The object of the present invention is to provide a hinge for a closure element which, while achieving the desired weight saving, provides an optimal haptic feel during the actuation processes over a long period of time. Solution to the task

[0004] The features of claim 1 lead to the solution of the problem.

[0005] Advantageous embodiments are described in the subclaims.

[0006] A hinge according to the invention for a closure element consists of a wing part and a frame part, wherein a pivot pin is provided, and the pivot pin functionally connects the wing part to the frame part, and the wing part is arranged so that it can rotate relative to the frame part. A first bearing bush and a second bearing bush are arranged on the pivot pin. This creates a functional connection between the wing part and the frame part, so that the wing part can be arranged so that it can rotate relative to the frame part. This rotatability ensures flexible movement of the closure element, while simultaneously ensuring a stable connection between the wing part and the frame part.

[0007] The diverse applications of the hinge for a locking element include possibilities for both automotive applications, such as storage compartment flaps, service flaps, fuel tank flaps, charging socket flaps for electric vehicles and glove compartments, as well as non-automotive applications, such as locking elements in the form of maintenance flaps, furniture or kitchen elements.

[0008] Possible materials for the manufacture of the hinge according to the invention or of individual or all components include plastic hinges, hinges made of die-cast aluminum, cast steel, stamped material, sintered material, forged components and components made of rolled or extruded profiles.

[0009] The wing section is constructed in one piece and consists of a wing plate and a C-hook. The C-hook is designed as a wide strip that initially runs away from the wing plate and then returns to the wing plate via two corner areas. This one-piece construction offers high stability and minimizes potential weak points that could occur with a multi-part construction. At the opposite end of the wing plate, the C-hook forms a rounded fitting piece into which a tenon channel is molded. The width of the C-hook decreases from the wing plate to the fitting piece. A tenon channel is molded into the rounded fitting piece, which supports the precise guidance of the pivot pin. The combination of wing plate and C-hook offers a compact design that simultaneously ensures the strength and load-bearing capacity of the wing section.The wing plate has a wing part fastening hole, preferably two wing part fastening holes, which enables simple and secure mounting on a wing of the closure element.

[0010] The two bearing bushes each consist of a roller sleeve. The roller sleeve forms a first crown ledge at one end and a second crown ledge at the other. The first crown ledge forms at least two spacers, preferably four spacers, which protrude from the surface of the roller sleeve from the interior of the roller sleeve. The spacers ensure precise positioning of the bearing bush in the hinge and prevent unwanted tilting. A continuous longitudinal slot in the roller sleeve allows for flexible adjustment during assembly.

[0011] Unlike shown in this embodiment, the two bearing bushes 4, 5 can also be formed as a single piece, forming part of the sash part 1 or the frame part 2. The locking element is located in the bearing seat and can, for example, be overmolded into the plastic part or subsequently pressed in. In such a case, the bearing bush would then be supported in the support sleeve rather than directly in the bore of the plastic hinge. This offers advantages when, depending on the application, higher torques must or should be achieved. This would also meet higher service life requirements.

[0012] Ribs are also formed on the surface of the roll sleeve between the first crown ledge and the second crown ledge, which also extend from the surface of the roll sleeve from the inside of the roll sleeve. The ribs are raised or undulated portions of the roll sleeve surface. Consequently, the ribs located between the crown ledges further increase structural strength and improve load distribution.

[0013] The use of a non-conductive plastic for the bearing bushings prevents the accumulation of static charges and minimizes the risk of electrical discharges. This improves operational safety, especially in environments with frequent electrostatic charges. Furthermore, the non-conductive plastic offers high mechanical strength and permanent electrical insulation, which supports the longevity of the hinge.

[0014] Furthermore, the roller sleeve features a continuous longitudinal slot. This special design of the bearing bush ensures stable yet flexible rotation, which increases the service life and load capacity of the hinge and facilitates installation.

[0015] The pivot pin has a longitudinally serrated head on one end and a hemispherical tip on the other. This design ensures a secure connection between the sash and frame, while the hemispherical tip ensures low-friction insertion of the pivot pin. The longitudinally serrated head prevents the pivot pin from twisting or slipping out, which increases the functional reliability of the hinge. The hemispherical tip facilitates insertion into the bearing bushings and other components gripped by the pivot pin. Furthermore, the hemispherical tip reduces the risk of accidental damage to components that come into contact during installation.

[0016] The frame part has a bow shape that forms a central receptacle. The receptacle is flanked by two fastening supports and a back. This bow shape ensures even distribution of the acting forces and guarantees secure attachment to a vehicle frame, a furniture body, or the like. The two fastening supports each form a frame part fastening hole, through which the frame part can be securely connected to a vehicle body, a furniture body, or the like. A pin passage is formed in each transition between the respective fastening supports and the back, which supports the easy integration and precise positioning of the pivot pin.

[0017] In addition to the basic design of the hinge, the special feature lies in the design of the hinge bearing point, which is characterized by special wave embossing in the form of ribs on the surface of the plastic roller shell, i.e., a part of the bearing bush. These wave embossings serve to generate a torque that can be optimized by deliberately changing the number and height of the ribs. This leads to an increased friction torque, which allows the rotational movement of the hinge to be regulated. This feature improves the haptics and enables a smooth and controlled movement of the locking element.

[0018] The use of this wave structure in the form of ribs has the advantage of achieving a constant torque solution, which is particularly beneficial in applications with high haptic requirements. Unlike conventional designs, which are often designed to ensure electrical conductivity, the hinge according to the invention serves to improve haptic feedback without creating a conductive connection. Rather, all relevant components can be made of plastic to eliminate conductivity. In a preferred embodiment, these are the wing part, the frame part, and the two bearing bushings. Consequently, conductive specialty plastics are not suitable for the hinge according to the invention.

[0019] The use of a non-conductive plastic for the bearing bushings prevents the accumulation of static charges and minimizes the risk of electrical discharges. This improves operational safety, especially in environments with frequent electrostatic charges. Furthermore, the non-conductive plastic offers high mechanical strength and permanent electrical insulation, which supports the longevity of the hinge.

[0020] The use of plastic prevents static charges from building up and causing discharges to jump, increasing the hinge's operational reliability. This property is particularly beneficial when the hinge is used in environments where electrostatic charges are likely to occur frequently. It also allows for weight savings.

[0021] The choice of non-conductive plastic also contributes to the durability and reliability of the hinge bearing, as the material is both mechanically resilient and electrically insulating. This ensures the long-term functionality of the hinge, even under harsh environmental conditions. Combined with the tactile optimization provided by the wave embossing, this results in a particularly robust and reliable hinge that is ideal for use in locking elements. Character description

[0022] Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings, which show: Fig. 1 a view obliquely from above of a hinge for a locking element; Fig. 2 an exploded view of the Fig. 1; Fig. 3 a top view of the hinge Fig. 1 with a section line AA; Fig. 4 an enlarged view of a detail Q from the Fig. 2; Fig. 5 an enlarged view of section line AA; Fig. 6 an enlarged view of detail R from the Fig. 5. Example

[0023] In Fig. Figure 1 shows an oblique top view of a hinge for a closure element in an installed state. The hinge for the closure element consists of a wing part 1 and a frame part 2. A pivot pin 3 connects the wing part 1 to the frame part 2, with the wing part 1 being rotatable relative to the frame part 2.

[0024] This rotatability allows flexible movement of the locking element and at the same time ensures a stable connection between the two components in the form of the wing part 1 and the frame part 2.

[0025] Figure shows an exploded view of the Fig. 1. This makes it easy to see which individual parts are connected to each other.

[0026] The wing part 1 consists of a single piece comprising a wing plate 20 and a C-hook 21. The C-hook 21 is formed as a wide strip, which initially extends away from the wing plate 20 at one end and then, across two corner areas, extends again toward the wing plate 20 at the other end. The width of the C-hook 21 is defined by the longitudinal extension between two fastening holes 10 of the wing part 1.

[0027] This one-piece construction provides high stability and minimizes potential weak points that could arise from a multi-part design. This combination of wing plate and C-hook provides a compact design that simultaneously ensures the strength and resilience of the wing section.

[0028] The wing plate 20 has two wing part mounting holes 10, which are intended to enable easy installation on a wing of the closure element (not shown). At the other end of the wing plate 20, the C-hook 21 forms a rounded fitting piece 12 into which a pin channel 8 is formed. The width of the C-hook 21 decreases away from the wing plate 20 toward the fitting piece 12.

[0029] Further in the Fig. 2 clearly shows the pivot pin 3. The pivot pin 3 has a longitudinally grooved head 6 at one end and a hemispherical tip 7 at the other. This design ensures an optimal connection between the sash part 1 and the frame part 2, while the hemispherical tip 7 ensures a low-friction solution when inserting the pivot pin 3. The longitudinally grooved head 6 provides additional security against twisting or unintentional slipping of the pivot pin from the hinge, which increases the functional reliability of the entire hinge.

[0030] From the Fig. 2 also shows that, in the installed state, a first bearing bush 4 and a second bearing bush 5 are arranged on the pivot pin 3, so that the sash part 1 is rotatably mounted relative to the frame part 2. The bearing bushes 4, 5 are designed to minimize friction while ensuring an even distribution of the rotational force. This increases the service life of the hinge and improves the movement quality of the locking element. The details of the bearing bushes 4, 5 are shown in the Fig. 4 is explained in more detail.

[0031] In the Fig. In the embodiment shown in Figures 1 to 6, the wing part 1, the frame part 2 and the two bearing bushes 4, 5 are a plastic wing part, a plastic frame part and plastic bearing bushes.

[0032] In the Fig. 2, the details of frame part 2 are also clearly visible and thus also explainable. Frame part 2 has a bow shape in the form of a handle. The frame part 2 forms a central receptacle 13. When installed, fitting piece 12 engages in receptacle 13, with fitting piece 12 being freely movable in the receptacle. This bow shape is particularly advantageous because it allows for an even distribution of the acting forces and offers secure attachment to a vehicle frame or a piece of furniture or the like.

[0033] This mount 13 is flanked by two mounting supports 22.1 and 22.2 and a back 23. The two mounting supports 22.1 and 22.2 each have a frame part mounting hole 11.1 and 11.2. These mounting holes 11.1 and 11.2 serve to securely fix the hinge to the vehicle structure or a furniture body or the like and ensure a stable connection that is maintained even during repeated opening and closing of the locking element.

[0034] In the transitions between the mounting supports 22.1 and 22.2 and the back 23, pivot holes 9.1 and 9.2 are formed. These pivot holes 22.1 and 22.2 enable the precise positioning of the pivot 3. They ensure that the rotational movement occurs without tilting. The symmetrical arrangement of the mounting supports 22.1 and 22.2 and the pivot holes 9.1 and 9.2 contributes to even force transmission and improves the long-term stability of the hinge.

[0035] In the installed state, the fitting piece 12 is located in the receptacle 13 and the pin passages 9.1 and 9.2 are congruent with the pin channel 8, so that the pivot pin 3 can reach through the pin passages 9.1 and 9.2 and the pin channel 8.

[0036] Unlike in this embodiment, the two bearing bushes 4, 5 can also be formed in one piece as part of the wing part 1 or also of the frame part 2.

[0037] Fig. 3 shows a top view of the hinge from Fig. 1 with a section line AA. The section line AA runs through a part of the sash part 1 and the frame part 2, as well as the pivot pin 3. In the Fig. 3 also indicates the longitudinal knurled head 6 of the pivot pin 3 in order to define the viewing direction.

[0038] Fig. 4 shows an enlarged view of detail Q from the Fig. 2. This means that the first bearing bush 4 is described in detail. However, the second bearing bush 5 is identical, so the explanations apply to both bearing bushes 4 and 5.

[0039] The first bearing bush 4 consists of a roller sleeve 14. This roller sleeve 14 forms a first crown ledge 15 at one end and a second crown ledge 16 at the other end.

[0040] The first crown molding 15 has at least two spacers 17, four spacers 17 in the drawn embodiment, which protrude outward from a surface of the roller sleeve 14 from an interior of the roller sleeve 14. The interior of the roller sleeve 14 is the area into which the pivot pin 3 moves in the installed state. The spacers 17 thus protrude from the surface of the roller sleeve 14l in the opposite direction. The term "spacer 17" is defined as a spacing element.

[0041] These spacers 17 serve to precisely position the first bearing bush 4 in the hinge and prevent unwanted tilting of the sash part 1 relative to the frame part 2.

[0042] On the surface of the roller sleeve 14, between the first crown ledge 15 and the second crown ledge 16, there are ribs 18, which also protrude outwards from the surface of the roller sleeve 14, i.e., away from the interior. These ribs 18 provide additional stability and contribute to improving load distribution. In the hinge according to the invention, a torque is generated via corrugated embossing in the form of ribs 18 in the bearing bushes 4, 5. This modification leads to an increased frictional torque, which advantageously enables constant torque release. This, in turn, leads to an improved haptic feel when actuating the locking element. They also increase the structural strength of the bearing bush, particularly under the high loads that can occur during operation of the locking element.

[0043] The ribs 18 extend from the surface at the same distance as the two crown moldings 15, 16. In the embodiment shown here, two ribs 18 are arranged parallel to a longitudinal slot 19. Additional ribs are arranged parallel to the two described ribs 18 across the entire surface of the roller sleeve 14. This has proven to be a preferred embodiment in practice.

[0044] In addition, the roller sleeve 14 has a continuous longitudinal slot 19. This longitudinal slot 19 allows for easy adjustment of the component to compensate for tolerance differences during assembly.

[0045] Fig. Figure 5 shows an enlarged view of section line AA. It clearly shows how the pivot pin 3 functionally connects the wing part 1 and the frame part 2. In the installed state shown, the fitting piece 12 engages in the receptacle 13, and the two bearing bushes 4, 5 form the movement point between the wing part 1 and the frame part 2, enabling a rotational movement. The spacers 17 space the two components apart, and the respective roller sleeves 14 space the pivot pin 3 from the frame part 2.

[0046] Fig. 6 shows an enlarged view of detail R from the Fig. 5. There you can see even better how the functionality described above is achieved by the second bearing bush 5, which also applies to the first bearing bush 4. List of reference symbols 1 wing part 2 frame part 3 pivot pins 4 First bearing bush 5 Second bearing bush 6 Longitudinal grooving head 7 semi-sphere tip 8 pin channel 9 Pin passage 10 Wing part fastening 11 Frame part fastening 12 fitting piece 13 recording 14 roller sleeve 15 First cornice 16 Second cornice 17 spacers 18 ribs 19 Longitudinal slot 20 wing plate 21 C-hooks 22 Mounting support 23 back QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] WO 93 / 09321 A1

[0002]

Claims

[1] Hinge for a closure element consisting of a wing part (1) and a frame part (2), wherein a pivot pin (3) is provided and the pivot pin (3) connects the wing part (1) to the frame part (2) and the wing part (1) is arranged so as to be rotatable relative to the frame part (2), wherein a first bearing bush (4) and a second bearing bush (5) are arranged on the pivot pin (3) and arrange the wing part (1) so as to be rotatable relative to the frame part (2), characterized byin that the two bearing bushes (4, 5) each consist of a roller sleeve (14), the roller sleeve (14) forming a first crown ledge (15) at one end and a second crown ledge (16) at the other end, the first crown ledge (15) forming at least two spacers (17), the at least two spacers (17) being designed to project away from a surface of the roller sleeve (14) from an interior of the roller sleeve (14), ribs (1) being designed on the surface of the roller sleeve (14) between the first crown ledge (15) and the second crown ledge (16) likewise projecting away from the surface of the roller sleeve (14) from the interior of the roller sleeve (14), the roller sleeve (14) having a continuous longitudinal slot (19). [2] Hinge according to claim 1, characterized by that the pivot pin (3) has a longitudinal knurling head (6) at one end and a hemispherical tip (7) at the other end. [3] Hinge according to claim 1 or 2, characterized bythat the wing part (1) consists in one piece of a wing plate (20) and a C-hook (21). [4] Hinge according to claim 3, characterized by that the wing plate (20) has a wing part fastening hole (10). [5] Hinge according to claim 3, characterized by that the C-hook (21) forms a rounded fitting piece (12) at the other end of the wing plate (20). [6] Hinge according to claim 5, characterized by that a tenon channel (8) is formed in the rounded fitting piece (12). [7] Hinge according to one of the preceding claims, characterized by that the frame part (2) has a bow shape which forms a receptacle (13), wherein the receptacle (13) is flanked by two fastening supports (22.1, 22.2) and a back (23). [8] Hinge according to claim 7, characterized by that the two fastening supports (22.1, 22.2) each form a frame part fastening hole (11.1, 11.2). [9] Hinge according to claim 7, characterized by that a tenon passage (9.1, 9.2) is formed in each transition between the fastening supports (22.1, 22.2) and the back (23).

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