• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a hinge (4) with friction damping for use between two parts (2, 3) of a device, such as a housing part and a corresponding lid part, where the two device parts (2, 3) can undergo a pivotal movement (alfa) relative to each other along the hinge (4), where the hinge (4) has a longitudinal axis (x) around which axis the pivotal movement (alfa) can take place, where the hinge (4) comprises a first hinge part (5) and a second hinge part (14), where the hinge (4) is configured such that the first and second hinge parts (5, 14) can undergo a pivotal movement (alfa) relative to each other about a longitudinal axis (x) such that a surface portion of the first hinge part (5) during the pivotal movement (alfa) is in contact with a surface portion of the second hinge part (14), where the surface portions of the first and second hinge part (5, 14) respectively are provided with friction or resilient materials, whereby friction is provided between the surface portions of the first and second hinge parts (5, 14) during said pivotal movement (alfa). The invention further relates to a housing or storage case in which the hinge according to the invention is used.
    公开号:DK202001454A1
    申请号:DKP202001454
    申请日:2020-12-23
    公开日:2021-07-26
    发明作者:Hiang Ng Yong
    申请人:Bang & Olufsen As；
    IPC主号:
    专利说明:

    DK 2020 01454 A1MINIATURE HINGE WITH FRICTION DAMPING FOR MOVEMENT CONTROL
    TECHNICAL FIELD The invention is related to the design of miniature hinges for use in storage cases with a lid, used to keep any kind of item or items that should be protected from exposure to the outside environment or from the risk of misplacing the item or items. More specifically, the miniature hinges can be used in storage cases for wearable electronic devices such as headphones, earphones, earbuds, hearing aids and the like. The storage case may contain additional elements such as rechargeable batteries and electronic circuitry such as charging circuitry, control circuitry, circuitry for wireless communication and alike.
    BACKGROUND OF THE INVENTION Hinges and miniature hinges are well-known in the prior art. Hinges may be used in numerous applications including storage cases and other enclosures for attaching a lid part of a case to a housing part (also called storage case part) of a case. Hereby, the lid part may be pivoted relative to the housing part of the case to enable the case to be opened or closed to expose or conceal the contents of the case, respectively. Without additional means, the pivoting movement of the lid is determined by the forces acting upon it, including the force of gravity and the force applied by the hand of the person opening or closing the lid. This can cause the lid to fall into the open or closed position, when released by the hand of the person operating the lid. Hence it may not be possible to leave the lid of the case in an intermediate position between the open and closed positions. Furthermore, without additional means, the lid may not remain opened or closed when the case is displaced or tilted from its normal horizontal orientation, allowing the force of gravity to act upon the lid. The object of the present invention is to add additional means to miniature hinges with friction pad to increase the level of friction beyond what can be achieved without the use of additional means and thus allowing for very compact hinge designs.
    SUMMARY OF THE INVENTION The present invention makes it possible to achieve adequate friction in very small hinge designs. For better control of the movement of the lid relative to the housing part of the case, damping means may be added to the hinge. Many different damping means for hinges are known in the 1
    DK 2020 01454 A1 prior art. One method for damping the movement of a hinge is using a friction pad attached to a first part of the case, for example the lid part, and mounting it in such a way that it is pushed against a second part of the case, which moves relative to the first part of the case, for example the housing part, in such a way that the friction pad rubs against the second part of the case throughout at least part, preferably the entirety, of the movement trajectory of the first part of the case relative to the second part of the case. The friction in the hinge with damping means will cause the lid part to experience friction in its movement relative to the housing part of the case and may allow the lid to be left stationary in any desired position in between the two extreme positions, open and closed, regardless of the force of gravity acting upon it.
    The surface area of the friction pad interacting with the second part of the case and the hardness of the material of the friction pad determine the amount of friction that is experienced during the movement of the lid. Design constraints of the storage case may prohibit the use of large hinges and/or large friction pads, which may make it impossible to obtain enough friction and adequate control of the movement of the lid, for example in storage cases with small form — factor.
    In a preferred embodiment, the lid part and the housing part of the storage case both pivot around a common axis, which may be a cylindrical shaft or rod made of metal or other hard material. The lid part and the housing part both have interlocking cylindrical extensions attached to their edges wrapped around different parts of the common axis allowing for the pivoting of the two parts relative to each other around the common axis. The friction pad may be attached to the lid part and may be positioned against the cylindrical extension of the housing part around the common axis, such that a pivoting movement of the lid part relative to the housing part around the common axis causes the friction pad to rub against the cylindrical extension of the housing part. According to the invention, not only a single friction pad and/or a single cylindrical extension may be applied. It is also within the scope of the invention to apply a hinge with multiple sections, i.e. comprising more than one friction pad and/or more than one cylindrical extension.
    To achieve adequate friction in very small hinge designs, the surface of the cylindrical extension of the housing part is coated with a rubber or other compliant material, which will significantly increase the friction between the friction pad(s) and said cylindrical extension(s). According to a first aspect of the invention there is provided a hinge with friction damping for use between two parts of a device, such as a housing part and a corresponding lid part, where the two device parts can undergo a pivotal movement relative to each other along the hinge, 2
    DK 2020 01454 A1 where the hinge has a longitudinal axis around which axis the pivotal movement can take place, where the hinge comprises a first hinge part and a second hinge part, where the hinge is configured such that the first and second hinge parts can undergo a pivotal movement relative to each other about a longitudinal axis such that a surface portion of the first hinge part during the pivotal movement is in contact with a surface portion of the second hinge part, where the surface portions of the first and second hinge part respectively are provided with friction or resilient materials, whereby friction is provided between the surface portions of the first and second hinge parts during said pivotal movement.
    In an embodiment of the first aspect, the hinge comprises one or more first at least partly cylindrical parts extending in the direction of the longitudinal axis and a second part extending longitudinally in parallel with the longitudinal axis and configured to undergo a pivotal movement about the longitudinal axis, where a contact surface portion of the second hinge part is in contact with a surface portion of the circumferential part of the first at least partly cylindrical part, such that a pivotal movement of the first and second hinge parts relative to each other makes the contact surface portion of the second hinge part move over and in contact with said surface portion of the circumferential part of the first at least partly cylindrical part, where said circumferential part of the first at least partly cylindrical part is provided with a layer of friction material and the second hinge part is or comprises a friction pad.
    In an embodiment of the first aspect, the contact surface portion of the second hinge part is compressed against the friction material provided on at least a portion of the outer circumferential surface of the at least partly cylindrical part.
    In an embodiment of the first aspect, the thickness of the layer of friction material is 0.05 to 0.3 mm, preferably 0.05 to 0.25 mm and more preferably 0.1 to 0.2 mm. In an embodiment of the first aspect, the friction pad is made of rubber with a hardness of ShA50+/-5.
    In an embodiment of the first aspect, the compression of the friction pad against the friction material provided on at least a portion of the outer circumferential surface of the at least partly cylindrical part is 0.25 to 0.55 mm, preferably 0.3 to 0.5 mm and more preferably 0.4 +/- 0.05 mm.
    In an embodiment of the first aspect, the first at least partly cylindrical part is provided with a longitudinally extending through channel longitudinally extending along the rotational axis of the at least partly cylindrical part, where the hinge further comprises two or more portions 3
    DK 2020 01454 A1 positioned on a common longitudinal axis and with a distance from each other corresponding to the length of the at least partly cylindrical part such that the at least partly cylindrical part can be placed between the two or more portions, where the two or more portions are each provided with a channel, the cross sectional dimension and shape of which corresponds to the through channel of the at least partly cylindrical part, such that a shaft member can be passed through the through channel and the respective channels of the two or more portions. Although the hinge according to the invention in the detailed description of the invention is shown comprising a single partly cylindrical part attached to one of the two parts of the device and one hinge portion at either longitudinal end of the partly cylindrical part, it is understood that the hinge according to the invention could alternatively comprise several partly cylindrical parts placed on one of the parts of the device each bounded by hinge portions provided on the other part of the device. Thus, for instance the hinge according to the invention may comprise a series of partly cylindrical parts on one of the parts of the device, each longitudinally bounded by hinge portions placed on the other part of the device.
    According to a second aspect of the invention, there is provided a housing or storage case comprising a housing part and a lid part that can undergo pivotal movement relative to each other along a hinge provided at an edge portion of the housing part and a corresponding edge portion of the lid part, where the hinge is a hinge according to the first aspect, where the first hinge part (such as the at least partly cylindrical part) is attached to or an integral part of the housing part and the second part is attached to or an integral part of the lid part.
    According to a variation of the second aspect of the invention there is provided a housing or storage case comprising a housing part and a lid part that can undergo pivotal movement relative to each other along a hinge provided at an edge portion of the housing part and a corresponding edge portion of the lid part, where the hinge is a hinge according to the first — aspect, where the first hinge part (such as the at least partly cylindrical part) is attached to or an integral part of the lid part and the second part is attached to or an integral part of the housing part.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood by reading the following detailed description of an embodiment of the invention in conjunction with the figures, where: figure 1(a) shows a section view of a storage case with the lid part opened and with a hinge according to an embodiment of the invention, 4
    DK 2020 01454 A1 figure 1(b) shows a perspective view of a shaft for the hinge shown in figure 1(a), figure 1(c) shows a section view of the shaft of figure 1(b) inserted into a hinge part on the storage case part, figure 2 shows a schematic side sectional view of a hinge according to an embodiment of the invention showing a partly cylindrical first hinge part provided on a storage case part and provided with a friction material on the circumferential surface of the first hinge part and a corresponding second hinge part provided on the lid part and comprising a friction pad that presses against the friction material on the first hinge part, figure 3 shows a schematic perspective view of the storage case part connected to the lid part by means of a hinge according to an embodiment of the invention, where the lid is pivoted over an angle relative to the storage case, figure 4 shows a schematical sectional perspective view illustrating the hinge according to an embodiment of the invention in more detail, figure 5 shows the lid part and the storage case part separated from each other at the hinge, and figure 6 shows the friction pad removed from a corresponding recess provided in the edge portion of the lid part.
    DETAILED DESCRIPTION OF THE INVENTION In the following a specific embodiment of the hinge according to the invention is described in detail, but it is understood that other embodiments incorporating the basic principles of the invention could also be envisaged and that such other embodiments would also fall within the scope of the invention as defined by the independent claim.
    With reference to figure 1(a) there is shown a section view of a storage case 1 comprising a storage case part 3 and a lid part 2 with the lid part 2 opened and with a hinge generally indicated by reference numeral 4 according to an embodiment of the invention. The hinge comprises basically two parts: one or more at least partly cylindrical bodies 5, longitudinally extending along an axis x and attached to the storage case part 3 and a corresponding hinge part attached to the lid part 2 comprising two at least partly cylindrical bodies 7 and 8 spaced apart along an edge portion of the lid part 2 at such a distance from each other that the at least partly cylindrical body 5 can fit into the space formed between the two bodies 7 and 8. The at 5
    DK 2020 01454 A1 least partly cylindrical body 5 as well as the two bodies 7 and 8 are provided with channels 6 and 9 respectively such that a shaft 10 can pass longitudinally through the at least partly cylindrical body 5 on the storage case part 3 and enter into engagement with the channels 9 in the cylindrical parts 7 and 8 on the lid part 2. As shown in figure 1(b), the shaft 10 may have a telescopic design comprising a main body 11 with diameter D and cylindrical end portions 12 and 13 at each longitudinal end of the main body 11 with diameter d.
    Diameter D substantially corresponds to the diameter of the channel 6 and diameter d substantially corresponds to the diameter of channels 9. The cylindrical end portions 12 and 13 can be spring loaded within the main body 11, such that they can be longitudinally compressed and thereby allow insertion of the cylindrical end portions 12 and 13 into the corresponding channels 9 on the bodies 7 and 8, respectively.
    Figure 1(c) shows the shaft 10 inserted into the at least partly cylindrical body 5 on an edge portion of the storage case part 3. With reference to figure 2 there is shown a schematic side sectional view of a hinge according to the embodiment of the invention shown in figure 1 showing the at least partly cylindrical body 5 provided on a storage case part 3. On a part of the outer circumferential surface 5' of the at least partly cylindrical body 5 a layer of friction material 5” is provided having a thickness t.
    In a preferred embodiment, the thickness t is between 0.1 and 0.2 mm, but the layer 5” may have other thicknesses.
    The hinge further comprises a corresponding second hinge part provided on the lid part 2 and comprising a friction pad 14 placed in a recess 16 that presses against the friction material 5” on the at least partly cylindrical body 5. The overlapping region 15 indicates (although in an exaggerated manner) that the friction pad 14 in an embodiment of the invention may be compressed relative to the outer circumferential surface of the at least partly cylindrical body 5, thereby increasing the friction between the friction material 5” and the friction pad 14. The compression is typically in the range 0.4 +/- 0.05 mm, but other ranges may be used also depending on the actual material used for the friction material 5” and the friction pad 14 as well as on the hardness of these materials and on the dimensions of the hinge.
    With reference to figure 3 there is shown a schematic perspective view of the storage case part 3 connected to the lid part 2 by means of a hinge according to an embodiment of the invention, where the lid part 2 is pivoted an angle a relative to the storage case part 3. The friction pad 14 is fixedly inserted into a suitably shaped recess 17 at the edge portion of the lid part 2. (The recess 17 may be differently shaped than the recess 16 in figure 2 depending on the shape of the friction pad.
    The cross-sectional shape of the friction pad 14 shown in figure 2 is only an example of the cross-sectional shape of a friction pad). 6
    DK 2020 01454 A1 With reference to figure 4 there is shown a schematical sectional perspective view illustrating the hinge according to an embodiment of the invention. A cross section of the at least partly cylindrical body 5 shows the through channel 6 into which there is inserted the shaft 10 about which the hinge can undergo pivotal movement. The shaft 10 is inserted into a channel 9 (not seen in figure 4) provided in the part 7 that is attached to (or an integral part of) the lid part 2. With reference to figure 5 there is shown the lid part and the storage case part separated from each other at the hinge and the friction pad 14 inserted in a corresponding recess 17 in the lid part 2. As shown in figure 6, the friction pad 14 may be fixed to the recess 17 in the lid part 2 by recesses 18 that are configured to engage with corresponding extensions in the recess 17.
    7
    权利要求:
    Claims (9)
    [1] 1. A hinge (4) with friction damping for use between two parts (2, 3) of a device, such as a housing part and a corresponding lid part, where the two device parts (2, 3) can undergo a pivotal movement (a) relative to each other along the hinge (4), where the hinge (4) has a longitudinal axis (x) around which axis the pivotal movement (a) can take place, where the hinge (4) comprises a first hinge part (5) and a second hinge part (14), where the hinge (4) is configured such that the first and second hinge parts (5, 14) can undergo a pivotal movement (a) relative to each other about a longitudinal axis (x) such that a surface portion of the first hinge part (5) during the pivotal movement (a) is in contact with a surface portion of the second hinge part (14), where the surface portions of the first and second hinge part (5, 14) respectively are provided with friction or resilient materials, whereby friction is provided between the surface portions of the first and second hinge parts (5, 14) during said pivotal movement (a).
    [2] 2. A hinge according to claim 1, where the hinge (4) comprises one or more first at least partly cylindrical parts (5) extending in the direction of the longitudinal axis (x) and a second part (14) extending longitudinally in parallel with the longitudinal axis (x) and configured to undergo a pivotal movement about the longitudinal axis (x), where a contact surface portion (14°) of the second hinge part (14) is in contact with a surface portion of the circumferential part (5°) of the first at least partly cylindrical part (5), such that a pivotal movement of the first and second hinge parts (5, 14) relative to each other makes the contact surface portion (14°) of the second hinge part (14) move over and in contact with said surface portion of the circumferential part (5) of the first at least partly cylindrical part (5), where said circumferential part (5°) of the first at least partly cylindrical part (5) is provided with a layer of friction material (5”) and the second hinge part (14) is or comprises a friction pad.
    [3] 3. A hinge according to claim 2, wherein the contact surface portion (14') of the second hinge part (14) is compressed (A) against the friction material (5”) provided on at least a portion of the outer circumferential surface (5) of the at least partly cylindrical part (5).
    [4] 4. A hinge according to any of the preceding claims, wherein the thickness (t) of the layer of friction material (5”) is 0.05 to 0.3 mm, preferably 0.05 to 0.25 mm and more preferably 0.1 to
    0.2mm.
    [5] 5. A hinge according to any of the preceding claims, wherein the friction pad (14) is made of rubber with a hardness of ShA50+/-5. 1
    DK 2020 01454 A1
    [6] 6. A hinge according to any of the preceding claims, wherein the compression (A) of the friction pad (14) against the friction material (57) provided on at least a portion of the outer circumferential surface (5°) of the at least partly cylindrical part (5) is 0.25 to 0.55 mm, preferably 0.3 to 0.5 mm and more preferably 0.4 +/- 0.05 mm.
    [7] 7. A hinge according to any of the preceding claims, wherein the first at least partly cylindrical part (5) is provided with a longitudinally extending through channel (6) longitudinally extending along the rotational axis of the at least partly cylindrical part (5), where the hinge (4) further comprises two or more portions (7, 8) positioned on a common longitudinal axis (x’) and with a distance from each other corresponding to the length of the at least partly cylindrical part (5) such that the at least partly cylindrical part (5) can be placed between the two or more portions (7, 8), where the two or more portions (7, 8) are each provided with a channel (9), the cross sectional dimension and shape of which corresponds to the through channel (6) of the at least partly cylindrical part (5), such that a shaft member (10) can be passed through the through channel (6) and the respective channels (9) of the two or more portions (7, 8).
    [8] 8. A housing or storage case comprising a housing part (3) and a lid part (2) that can undergo pivotal movement relative to each other along a hinge provided at an edge portion of the housing part (3) and a corresponding edge portion of the lid part (2), where the hinge is a hinge according to any of the preceding claims 1 to 6 where the first hinge part (5) is attached to or an integral part of the housing part (3) and the second hinge part (14) is attached to or an integral part of the lid part (2).
    [9] 9. A housing or storage case comprising a housing part (3) and a lid part (2) that can undergo pivotal movement relative to each other along a hinge provided at an edge portion of the housing part (3) and a corresponding edge portion of the lid part (2), where the hinge is a hinge according to any of the preceding claims 1 to 6 where the first hinge part (5) is attached to or — an integral part of the lid part (2) and the second hinge part (14) is attached to or an integral part of the housing part (3). 2
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-07-26| PAT| Application published|Effective date: 20210624 |
    优先权:
    申请号 | 申请日 | 专利标题
    SG10201913039W|2019-12-23|
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