• 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:
    Device for automated mounting of an endless stitched reference strip, preferably leather strip, on a component, preferably a steering wheel blank by pushing the steering wheel blank through the reference strip by the steering wheel blank is pushed by resilient guide blades and the reference strip is clamped and taken only in the correct circumferential position.
    公开号:AT518189A1
    申请号:T50041/2016
    申请日:2016-01-28
    公开日:2017-08-15
    发明作者:Pha Socheat
    申请人:Pha Socheat；
    IPC主号:
    专利说明:

    Apparatus and method for mounting and accurately positioning endlessly sewn covers
    The invention relates to a device and a method for mounting and exact positioning of endlessly sewn references to existing workpiece base shapes of different outer contour, in particular steering wheels. In particular, the invention relates to an apparatus and a method for the production of steering wheels with a tubular sheath made of a variety of slightly elastic coating materials, especially leather.
    The increasing demands on precision in the processing, grace of the Verbaus and efficiency in dealing with the resource leather, the currently known chemical and physical possibilities of leather production no longer meet. Due to the lack of technical possibilities of the leather industry, compromises in processing are increasingly being made in connection with decreasing efficiency.
    In the following, the problems of the resource leather with regard to their use as a coating, in particular for steering wheels in motor vehicles, are briefly illuminated. The histological structure of a cattle skin prevents a uniform, reversible stretching of the leather. The average stretch behavior (longitudinal / transverse) of a dermis varies from 4 - 25%. Without taking into account parameters restricting the trajectory, such as natural features, only about half of the dermis has a consistent elasticity which also meets the requirements of certain specifications. Depending on the leather type, a proportion of 35 - 60% of the high-quality dermis must be disposed of, as it does not meet the requirements.
    Beaded steering wheels usually have to be brought into shape using temperature, that is to be smoothed.
    The physical requirements of certain specifications can only be achieved in the core area of the dermis.
    Generally, even considering the "ideal" stretch of the dermis of 8-18%, there is no precise positioning of the netted objects to each other. In the production of interior applications, it inevitably comes to a mixing of the leather blanks from different sampling areas, where it can be assumed that the application is made from the entire dermis.
    In the composite of the application or the Umlederung thus meet objects with extremely different strains each other. The accuracy of fit of the leather blanks in the sewn composite can only be a coincidence per se - the tolerances of the leather stretch can be approximated only in the creation of the contour. Folds in the lining are another effect of this situation in transitions from convex to concave areas.
    Due to different production techniques and different rawhide provenances, it is not possible to create "unisono" stencils for all types of leather and suppliers.Cutting templates are created in the construction based on a "master leather skin", which tries to elaborate the different strains of the dermis for series production Differences from dermis to dermis or other influences can not be taken into account here.
    Therefore, until the mass production of blanks, numerous loops have to be run to optimize the blank. Natural leather, after stretching, is unable to regain its original shape. Therefore, stressed leather comes more and more out of shape with the progress of the stress. The consequence is the progressive overstretching. With the intensity of the stress, this process progresses faster and can lead to cracks and fractures.
    Due to the different elongation of leather in the longitudinal and transverse direction, it is necessary to follow a punching plan and to take the blanks directed out of the dermis (e.g., punching direction: abdominal abdomen).
    The different elongation is also the reason why every object represents a great challenge to the employee of the serial production despite the best construction and contouring. The employee develops skills to deal with the different circumstances, but is only partially productive.
    The inaccuracies described above result in handwork predominating in the current manufacture of steering wheel covers. On the existing steering wheel blanks the tailored and corresponding endlessly sewn hose part is manually drawn over the steering wheel contour and positioned according to the arrangement of the seams and spokes.
    The positioning of the tube strip for exact looping of the handle ring profile and positioning in relation to the spoke connections on the blank requires a high degree of experience and time.
    The object of the invention is to provide a method and a device to provide a steering wheel with a coating which overcomes the above-mentioned disadvantages and makes it possible to apply the coating effectively, accurately and shapely on the steering wheel main body.
    The present invention takes into account the essential requirements of accurate positioning of the hose portion on the steering wheel circumference by extensive automation of the coating and alignment process.
    In the following, the invention will be explained in more detail by way of an exemplary and non-exclusive exemplary embodiment.
    The device according to the invention for coating an endless reference strip 1, preferably a leather strip, on a steering wheel 3 essentially comprises the following components:
    In a base frame is a sliding device 2, which can be arranged either vertically or horizontally housed. At the top of this pusher 2 is a steering wheel mount on which the steering wheel blank 3 is placed centered.
    At a defined distance from the head of the pusher 2 is a stationary base plate 4 with contour cutout for receiving the, arranged along the outer contour of the respective steering wheel 3, resilient guide blades. 8
    On this base plate 4 and, with positioning and holding devices, preferably holding magnets 9, provided holding cylinder are arranged. On the circumference usually one to three fixed blades 6 with receiving and guiding, in particular guide slot, arranged in which each left and right shortened resilient guide plates 7 are arranged. These shortened guide plates 7 release the clamping area for clamping the endless reference strip, preferably a leather strip, on the steering wheel circumference.
    Outside the resilient guide blades 8, a movable support plate 5 is arranged for receiving the clamping devices. This movable support plate 5 positions the clamping cylinder 10 located thereon exactly at the height of the largest diameter, d. H. on the theoretical center of the endless reference strip 1 to be sewn, preferably a leather strip.
    When applying the endless reference strip 1, the procedure is as shown in FIGS. 2 to 5:
    The steering wheel blank 3 is fixed in the receptacle 2. Next, the endlessly stitched reference strip 1 is positioned on the fixed fins 6 so as to ensure the exact position of the spoke attachment projections with respect to the steering wheel. Among other things, the butt seam which is inserted into the guide groove of the fixed lamella (s) 6 and is subsequently fixed by the holding device (s) 10 is preferably used. Preferably located on the steering wheel blank 3 exactly in this area an annular recess, which may possibly absorb a seam protrusion at the reference joint (leather shock).
    The resilient guide blades 8 are now extremely loose from the endless cover strip 1, preferably leather strips, enclosed, but prevent a collapse of the only selectively held endless reference strip. 1
    By this construction, it is possible to provide much lower tolerance requirements for the production of the endless reference strip (Pos. 1) (preferably leather strip), so as to meet the problems described above.
    As the next production step, the steering wheel blank 3 is now pressed on the inside of the resilient guide plates 8 to the middle position, the steering wheel itself determines the contour and only the least possible elongation of the cover (leather) is made by the resilient guide plates 8. During this first cycle, there is no direct contact of the steering wheel blank 3 with the aufzusenden endless cover strip 1. When the exact takeover point is reached, the clamping cylinder 10 clamp the reference strip radially on the outer contour of the steering wheel 3, the holding device 9 is released and the second Clock is started.
    At the second clock, the movable support plate 5 is moved synchronously with the clamping cylinders 10 and pushed over the entire length of the resilient guide plates 8. In this process, the endless reference strip 1 is held exactly on the circumference of the steering wheel and deducted with the steering wheel of the resilient guide plates 8. As a result, the endless reference strip is fixed to the blank and can be removed from the device for further processing.
    权利要求:
    Claims (9)
    [1]
    claims
    1. A device for automatically applying an endless stitched reference strip, preferably leather strip, on a component, preferably a steering wheel blank by pushing the steering wheel blank through the reference strip by the steering wheel blank is pushed by resilient guide blades and the reference strip is clamped and taken only in the correct circumferential position.
    [2]
    2. Apparatus according to claim 1, characterized in that the reference strip is placed on at least one fixed blade so that an exact positioning and guidance is achieved.
    [3]
    3. A device according to claim 1 or 2, characterized in that the fixed blade has on the inside a semicircular guide nose below the receiving slot for the butt weld, which preferably engages in the groove of the steering wheel blank and thus correctly centered in relation to the impact of the endless stitched reference strip ,
    [4]
    4. Device according to one of claims 1 to 3, characterized in that fixed holding devices hold the reference strip during positioning on the fixed plate and in the course of the reference operation by movable clamping devices which fix the reference strip on the steering wheel blank, are replaced, wherein the clamping devices in a row move in sync with the reference to the steering wheel blank.
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the resilient guide plates allow a change in length compensation when placing the reference strip in the device.
    [6]
    6. Device according to one of claims 1 to 5, characterized in that the expansion of the reference strip is effected by the steering wheel itself via the resilient guide blades.
    [7]
    7. Device according to one of claims 1 to 6, characterized in that after inserting the reference strip, the strip is accurately held on the fixed plate or the fixed blades by a clamping system and / or a magnetic system, which can be easily solved after the terminals.
    [8]
    8. Device according to one of claims 1 to 7, characterized in that the reference strip can be fixed after the correct mounting by means of special clips in position.
    [9]
    9. Device according to one of claims 1 to 8, characterized in that the reference strip is coated on its inside with a heat-activatable adhesive which is selectively activated during the flattening process by means of point warming and thus carries out a fixation of the reference strip on the steering wheel blank.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE102012204740A1|2013-09-26|Forming machine, in particular bending machine
    EP3040176B1|2020-11-04|Manufacturing plant
    AT518189B1|2017-11-15|Apparatus and method for mounting and accurately positioning endlessly sewn covers
    DE1652221A1|1971-03-11|Multi-part ring holder for lens blanks
    DE102004035758A1|2006-03-16|Production of a decorated blank made from a decorated material comprises placing the decorated material between two mold halves of a molding device and placing the mold halves together in a closing direction
    DE10251580A1|2003-09-25|Process for producing a component made of fiber-reinforced plastic
    EP3212349A1|2017-09-06|Method for producing a clamping ring
    DE102013016255A1|2014-07-24|Tool e.g. deep-drawing tool for deep drawing of components, has blank holder whose support surface is made of hard elastic plastic material for fixing tool element contacted with counter portion
    DE602004002223T2|2007-08-30|Method and device for detecting the position of a mechanical part in a receptacle
    DE102014108894B4|2020-08-06|Process for process-controlled welding of materials
    DE202014106045U1|2015-01-19|Device for reworking an injection-molded component and arrangement with several devices
    DE102009042303A1|2011-03-24|Device for processing e.g. roughening, side edges and notch weft of shaft of sports shoe, has gripper gripping shoe, where boundary line between shoe and sole is verified and corrected by machine operator
    DE102009060227A1|2011-07-07|Method for manufacturing component connection between outer part and inner part of body part, involves transforming formed and turned edge-sided board to target contour and target position by separate setting unit before rebate station
    DE4439132A1|1996-05-09|Method for applying ribbon polishing material to a roller
    EP1752233B1|2009-05-20|Hose-press for producing individual hydraulic conduits
    DE102011015705A1|2012-10-04|Radial press for the radial deformation of work pieces, particularly for pressing of fittings at tube portion ends, has basic structure, pressing tool and machine control, where basic structure has two structural elements that are moved
    DE2443001A1|1975-04-03|METHODS AND DEVICES FOR MACHINING SHOE SOLES CONNECTED TO UPPER LEATHER
    DE4420852C2|1996-05-30|Method and device for the production of metallic reinforcement cages for elongated concrete components
    DE416539C|1925-07-17|Method and device for manufacturing metal frames
    DE2360249C3|1980-06-12|Method and device for manufacturing shoes
    DE102017125941A1|2019-05-09|Material processing machine and method for producing a container in a material processing machine
    DE102014209393B4|2016-02-04|Method for machining a plate-like workpiece, in particular a metal sheet
    DE102018116412A1|2020-01-09|Method for producing a component having a row of teeth for adjusting a motor vehicle seat
    DE102019204412A1|2020-10-01|Method of manufacturing an assembly
    DE381719C|1923-09-24|Commuter with metallic carrying case for electrical machines
    同族专利:
    公开号 | 公开日
    EP3199423A3|2017-12-27|
    EP3199423A2|2017-08-02|
    AT518189B1|2017-11-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2327931A|1939-11-16|1943-08-24|Isabelle Ratner|Method and apparatus for forming air-celled steering wheel cushions|
    WO1986005454A1|1985-03-18|1986-09-25|Mitsubishi Denki Kabushiki Kaisha|Method and apparatus for manufacturing steering wheel|
    JPH0523451A|1990-11-30|1993-02-02|Midori Anzen Kk|Automatic leather winding machine of steering wheel of automobile|
    EP0795456A2|1996-01-26|1997-09-17|Toho Rayon Co., Ltd.|Steering wheel and method of manufacture|
    KR20020065463A|2002-07-27|2002-08-13|이영채|The manufacturing process of steering wheel for woodgrain|
    US20080105077A1|2006-11-03|2008-05-08|Laboskey Christopher P|Steering wheel and method of making|
    DE102007019521A1|2007-04-25|2008-10-30|Trw Automotive Safety Systems Gmbh|Assembly to apply a leather steering wheel cover has two opposing needle handling units|CN109516153A|2018-09-29|2019-03-26|盐城同济汽车配件有限公司|A kind of vehicle steering wheel feeding device|JPH0648306A|1992-07-27|1994-02-22|Nippon Plast Co Ltd|Method and device for setting leather to steering wheel ring part in leather-wound steering wheel|
    KR100470680B1|2002-05-29|2005-03-08|주식회사 화진테크|Method and apparatus for transcribing automatically surface of a steering wheel|
    JP4899179B2|2005-12-19|2012-03-21|高知県|Transfer method to transfer the pattern to the steering wheel|
    JP2008143299A|2006-12-08|2008-06-26|Nisshin Kasei Kk|Manufacturing method of leather-covered steering wheel|
    JP5005727B2|2009-04-06|2012-08-22|愛知皮革工業株式会社|Handle leather perimeter for leather-wrapped vehicles|
    法律状态:
    2021-09-15| MM01| Lapse because of not paying annual fees|Effective date: 20210128 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50041/2016A|AT518189B1|2016-01-28|2016-01-28|Apparatus and method for mounting and accurately positioning endlessly sewn covers|ATA50041/2016A| AT518189B1|2016-01-28|2016-01-28|Apparatus and method for mounting and accurately positioning endlessly sewn covers|
    EP17152570.2A| EP3199423A3|2016-01-28|2017-01-23|Method and device for pulling linings|
    [返回顶部]