• 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 object of the invention is to reduce the heat flow through a pressure pin (1). The pressure pin (1) according to the invention is made of a composite material which has fibers (3) as reinforcement and a resin or a polymer as binder (4). The fibers extend from one end of the stick to the other end. The composite material forms a casing structure around the longitudinal center axis of the pin, and which casing structure consists of several layers (5) on top of each other. The fibers (3) in the layers (5) are transverse to the longitudinal central axis of the pin (1). (Fig. 2)
    公开号:SE1651534A1
    申请号:SE1651534
    申请日:2016-11-24
    公开日:2017-05-31
    发明作者:HEIKINMATTI Mika；REIVONEN Tomi；Kallinen Risto
    申请人:Abloy Oy；
    IPC主号:
    专利说明:

    Technical field The invention relates to a pressure pin. Pressure pins are used on doors to connect a pressure to a door lock.
    State of the art A door lock is connected by a pin with a push used to open and close the door. The pressure also makes it possible to pull a locking piston into the lock housing. Normally, the printing pin consists of metal. In some contexts, such as sliding doors, it is also known to use plastic sticks, as described in EP1398435.
    At exterior doors, the stick conducts heat from the inside to the outside. The heat gen fate through the stick can be significant especially in winter. This is because front door pins are made of metal. The metals used for sticks are good heat conductors.
    Brief description of the invention The object of the invention is to reduce the heat dissipation by means of a pressure pin. This is achieved in the manner described in the independent claim. The dependent claims describe various embodiments of the invention.
    The pressure pin according to the invention consists of a composite material with fibers as reinforcement and resin or polymer as binder. The fibers extend from one end of the pin to its other end, and the fibers constitute 55 to 70% by volume of the composite material in the pin. The composite material forms a casing structure around the longitudinal central axis of the pin, and which casing structure consists of several layers on top of each other. The fibers in the bearings are transverse to the longitudinal central axis of the pin so that at least the branches of the outermost bearings are substantially at an angle of 40 to 50 degrees relative to the longitudinal central axis of the pin, and the branches of the other bearings are substantially at an angle of 30 to 60 degrees. in relation to the longitudinal central axis of the pin, and at least the edges of the outermost bearing meet a certain or certain straightness requirements.
    BRIEF DESCRIPTION OF THE DRAWINGS In the following, the invention will be described in more detail with the aid of the fl gures in the accompanying drawings, in which fi gur1 shows an example of a pressure pin according to the invention in mounted position in a door, fi gur 2 shows an example of a pressure pin according to the invention, is an example view of a pressure pin according to the invention in cross-section, fi gur4 shows another example of a pin according to the invention in cross-section, and fi gur 5 illustrates the straightness requirement of the fibers.
    Detailed description of the invention Figure 1 shows an example of a pressure pin 1 according to the invention in mounted position in an outer door 14. The pressure 10 is an internal pressure, and the pressure 11 is an external pressure. The internal pressure has a recess 10A for the pin. The external pressure has a similar depression 11A. The door 14 has a mounting opening 15 for the pin 1. In addition, the door has a lock 16 which in Figure 1 is drawn as a dashed line. The pin made it possible to pull a locking piston into the door by turning one of the pressures and to open or close the door.
    It can be seen from figure 1 that the pin 1 conducts heat from the inside of the door to the outside of the door. The internal pressure 10A and also the external pressure 11A contribute to the heat transfer because the pressures are of metal, and they increase the heat transfer area. Since the pin 1 according to the invention consists of a composite material, it has a much lower thermal conductivity than a stick in metal.
    Composite materials are known per se, but they have not previously been used with oppression pins successfully because the pin must withstand a relatively large torque load. The pin must withstand a torque of at least 40 Nm. In addition, its wear resistance must be so good that the stick can even be used for decades.
    The use of a composite material does not in itself result in a stick that is realistically useful and durable. This is especially true of front door studs. The requirements and service life may be lower for interior doors.
    Figure 2 shows an example of a pin 1 according to the invention and Figure 3 shows an example of a pin according to the invention in section. The pressure pin 1 according to the invention consists of a composite material 2 with fibers 3 as reinforcement and resin or polymer 4 as binder. A polymer is a molecule where fl your small molecules are held together by chemical bonds. Polymers can be divided into synthetic and natural polymers. Plastics are common synthetic polymers. Plastics such as PPS or PP can be used as binders. The fibers consist of carbon. In addition, fi brern can consist of other materials, such as kevlar, glass and natural fibers. Flax is an example of nature.
    The fibers 3 extend from one end of the stick 1 to its other end, and fi burners constitute 55 to 70% by volume of the composite material in the stick. The composite material 2 forms a housing structure around the longitudinal central axis of the pin. Figure 2 illustrates the center shaft using the line A. The housing structure is made up of several layers 5 on top of each other. There can be 8 to 12 layers on top of each other.
    The fibers in the bearings are transverse to the longitudinal central axis of the pin so that at least fi the members of the outermost bearing 5 are substantially at an angle of 40 to 50 degrees relative to the longitudinal central axis of the pin, and the fi members of the other bearings are substantially at an angle of 30 to 60 in relation to the longitudinal central axis of the pin, and at least the edges of the outermost bearing meet a certain straightness requirement. As shown in Figure 2, the fiber angle with respect to the center axis may be different in the corner areas B between the sides of the pin than the angles in the above-mentioned areas. In addition, the rak requirement of opacity may be different in the corners than on the surfaces of the composite layers in the stick.
    Figure 3 illustrates how the casing consists of several layers 5 on each other. The pin 1 according to the embodiment in fi gur 3 is hollow in the middle along the longitudinal axis of the pin. Figure 4 shows another embodiment in which the hollow space in the pin is filled with a material 17 with poor thermal conductivity. The material with poor thermal conductivity can be, for example, polyurethane. Figure 4 also shows a possible additional layer 18 on the outermost composite material layer 5. The purpose of the additional layer is to increase wear resistance if desired. The material in the additional layer may be a material suitable for the purpose, such as epoxy. The pin can also have more than one additional layer 18 on said outermost composite material layer 5. In the case of a pin with additional layers, their thicknesses are also taken into account in order for the pin to be slidable into the pressures and the lock housing.
    The above-mentioned straightness requirement is that the position of a fiber at a certain distance, at any point in the fiber, remains within a certain range. Figure 5 illustrates this straightness requirement. The fiber 3 in Figure 5 meets the straightness requirement because along the length L of the children, at any point in the children, it stays within a certain range AC. The fiber 3 thus stays inside a virtual cylinder 20 of a certain shape whose height and cross-sectional area L and AC, respectively. The length L and the cross-sectional area AC can be determined as dependent on the diameter 3 of the child. The length L may, for example, be the diameter of the k * fiber, whereby a coefficient such as 10. Then the area becomes pi / 4 * (j * fi child diameter) 2. Since the dimensions of the diameter of fi berns are given in μm, it is expedient to state also L and the area AC diameter ium. Since the pin normally has a substantially square shape in cross section, the straightness requirement may be different in the corners than on the sides of the square, ie. bearings in the pin.
    In the above-mentioned manner, a composite stick is obtained which both withstands the stresses to which pressure sticks are subjected and has a long service life. By using several layers, a stronger construction is created than by using a single thick construction. The fact that the fibers mentioned above are placed transversely in relation to the longitudinal axis of the pin also reinforces the construction. In addition, the transversely placed fibers extend the distance of the heat transferred along the fibers, ie. increases heat resistance.
    It is also important that in particular the outermost composite material layer 5 (the layer which is furthest from the longitudinal central axis of the pin) meets the straightness requirements of the above-mentioned type. If the straightness requirements are not met, the outer composite material layer of the pin is weakened at one point or points, so that the pin in use does not necessarily withstand the stresses. The straightness requirement refers to at least the outermost layer due to the fact that the outermost composite material layer is always exposed to the greatest stress.
    The layered housing construction is very strength-resistant, and the hollow or heat-filled material center area in the pin means that the heat transfer resistance of the pin is greater than in a pin which consists entirely of one and the same material. The invention achieves a thermal conductivity coefficient below 0.5 W / Km. In most embodiments of the invention, the thickness of the bearings in the housing is approximately 2 mm. This means that if the composite layers are 10 in number, the thickness of each individual layer is approximately 0.2 mm. As already noted above, each composite layer includes fiber from one end of the stick to its other end.
    The fibers are shown in Figure 1 so that they are all turned in the same direction in the respective layers. However, if the needle is made using fabric stockings in which the fibers are woven transversely to each other, approximately half, or half, of the fibers run clockwise in the re- respective bearings, and about half, or half, of the fis run counterclockwise in respective bearings. Even then, at least fi the members of the outermost layer are at an angle of 40 to 50 degrees to the longitudinal center axis of the pin, and the i members of the other bearings are at an angle of 30 to 60 degrees to the longitudinal center axis of the pin, and at least the fibers of the outermost layer meets a certain straightness requirement. The purpose is that the angle of the fi members in the outermost layer is as close to 45 degrees as possible.
    The size of the pressure pin is normally 8 * 8 mm, but it can also be 10 * 10 mm in some special cases. 110 mm and 120 mm are in turn standard lengths of the pin. This means that a relatively small area is exposed to relatively large stresses, such as torque of 40 Nm and surface pressures above 500 MPa on the surfaces near the corners of the pin. The invention can handle these large stresses with materials which generally have a much lower thermal conductivity than the metals is used in sticks, which has been achieved by the construction solutions described above.
    From the above examples it appears that it is possible to create an embodiment according to the invention through many different solutions. In addition, it is possible to make the composite stick fire-resistant by adding a protective agent to the binder. The invention can thus be implemented in many different embodiments within the scope of the independent patent claim.
    权利要求:
    Claims (6)
    [1]
    A compression pin (1) of a composite material (2) which has a bead (3) as reinforcement and a resin or a polymer (4) as an adhesive, characterized in that the beads (3) extend from one of the pin (1) end to its other end and the members constitute 55 to 70% by volume of the composite material in the pin, which composite material (2) forms a casing structure around the longitudinal central axis of the pin, and which casing structure consists of several layers (5) on top of each other, which layers are transverse to the longitudinal central axis of the pin so that at least the branches of the outermost layer (5) are substantially at an angle of 40-50 degrees relative to the longitudinal central axis of the pin, and that the branches of the other layers are substantially in a angle of 30 - 60 degrees in relation to the longitudinal center axis of the pin, and that at least the fi members in the outermost layer meet a certain or certain requirements for straightness.
    [2]
    Pin according to claim 1, characterized in that the pin (1) is hollow in the middle in the direction of the longitudinal axis of the pin.
    [3]
    Stick according to claim 2, characterized in that the hollow space in the stick is filled with a material which has poor thermal conductivity.
    [4]
    Stick according to one of Claims 1 to 3, characterized in that the requirement for straightness or the requirements for straightness is that the fiber to its position, at a certain distance anywhere in fi bern, remains within a certain range.
    [5]
    Stick according to claim 4, characterized in that the number of layers is 8 - 12.
    [6]
    Stick according to any one of claims 1 - 4, characterized in that the stick further has at least one layer on said outermost composite material layer.
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    同族专利:
    公开号 | 公开日
    SE541807C2|2019-12-17|
    FI126977B|2017-09-15|
    FI20155896A|2017-05-31|
    NO20161727A1|2017-05-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-06-29| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    FI20155896A|FI126977B|2015-11-30|2015-11-30|PUSH BUTTON|
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