• 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:
    Spirit level (1) having a hollow profile as a spirit level body (2) and at least one dragonfly (3) with a dragonfly socket (4), wherein the dragonfly socket (4) in the spirit level body (2) is movably mounted and the dragonfly socket (4) has a recess (23) into which a fixing means (8) through a wall of the spirit level body (2) is insertable, wherein the fixing means (8) prevents displacement of the dragonfly socket (4) parallel to the longitudinal axis of the spirit level body (2) and movement of the level detection (4) allows normal to a measuring surface (9) of the spirit level body.
    公开号:AT517233A4
    申请号:T441/2015
    申请日:2015-07-07
    公开日:2016-12-15
    发明作者:
    申请人:Sola-Messwerkzeuge Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a spirit level with the features of the preamble of claim 1.
    Spirit levels are often exposed to large temperature fluctuations in use. The difference in the coefficients of thermal expansion between a spirit level body, which is usually made of aluminum, and a vial body or vial mount, which is usually made of plastic, causes thermal stresses and thermal expansions between the spirit level body and the vial body or the vial mount. It is particularly disadvantageous if the relative movement of the vial body or the vial mount and the spirit level body leads to a loss of the calibration position of the vial.
    To overcome this technical problem, prior art approaches are known.
    Thus, the W07900672 shows a spirit level, the level of which is adjustable by an adjusting device in a receiving space of the housing relative to a measuring surface. By the closing body receiving the adjusting device being present as a separate part, its material and thus its coefficient of thermal expansion can be chosen such that a different thermal expansion between the level and the housing is compensated.
    Object of the present invention is to provide a spirit level with respect to the prior art improved compatibility with temperature fluctuations and simple design.
    The object is achieved by a spirit level with the features of claim 1. Advantageous embodiments are specified in the dependent claims.
    By the vial holder is movably mounted in the spirit level body and the vial mount has a recess into which a fixing means is inserted through a wall of the level body, wherein the fixing means a displacement of the vial mount parallel to the longitudinal axis of
    Prevented bubble level body and allows movement of the level detection normal to a measuring surface of the spirit level body, an improved compatibility of the spirit level is achieved against temperature fluctuations. Compatibility with respect to temperature fluctuations is understood here to mean that the spirit level preserves high accuracy when passing through temperature fluctuations.
    It is chosen to maintain a high accuracy of the spirit level when going through temperature fluctuations so the seemingly paradoxical measure to store the dragonfly version in spirit level body movable.
    When going through a temperature change occur between spirit level body and level detection large tensions, whereby the calibration position of the dragonfly can be lost.
    The Applicant has found in experiments that occur in a movable storage of the level detection dragonfly body in the spirit level body only low voltages between the spirit level and spirit level body and thus there is no loss of a calibration position of the spirit level.
    Unfavorable for the compatibility of a spirit level with respect to temperature fluctuations, however, are attachment methods by gluing or pressing the level detection in spirit level body. In fact, here is no relative movement between the spirit level and spirit level body possible.
    The recess in the vial holder forms a guide for the fixing means, so that a relative movement of the vial holder in the spirit level body along a direction normal to the measuring surface of the level body is allowed. The fixing agent can be introduced via a wall of the spirit level body. For this purpose, an opening is provided in at least one wall of the spirit level body, through which the fixing agent can be introduced through the wall of the spirit level body into the recess in the level detection.
    In order to make the spirit level insensitive to shocks such as may occur when a spirit level falls down, it is necessary to fix the level detection against a displacement in the longitudinal axis of the spirit level body.
    The at least one opening for introducing the fixing agent is preferably provided on a side surface (cheek) of the spirit level body. This refers to that surface which forms the longitudinal side in the cross section of the profile forming the spirit level body.
    It may alternatively be provided that the at least one opening is formed on a narrow side of the spirit level body. The corresponding recess in the level detection can be formed in this case by a hole normal to a measuring surface. The fixing means may be formed as slidable in the bore.
    By tolerating the at least one opening with the fixing means so that it is pressed in the opening, no further attachment of the fixing agent is required.
    The measuring surface of a spirit level is formed by the outer wall of the narrow side of the spirit level body forming profile on the flat level (horizontal vial) opposite side. In a conventional rectangular cross section, it is thus a narrow side of the rectangular profile.
    It can be provided that the fixing means is designed as a sleeve. Under sleeve is to be understood a profile with a hollow cross-section.
    It can be provided that the fixing means is designed as a bolt. In this variant, the fixing agent has a filled cross section.
    It can be provided that the fixing means is designed in the form of a two-part pin with snappers, wherein the halves of the two-part pin can be inserted through opposite walls of the spirit level body and fixed by snapping the snapper together.
    It is preferably provided that the recess in the level holder is designed as a slot. The slot serves as a guide element for the insertable fixative. The longitudinal extent of the slot runs so that a
    Movement of the level holder normal to the measuring surface of the spirit level body is made possible.
    It should be noted that it is known for fixing Libellefassungen in spirit level body, so-called nail sleeves to use. Nail sleeves are pressed into the spirit level body cylindrical-shaped body, which are pressed into a bore of the level detection. In tests of the Applicant has been found, however, that when going through temperature changes, a nail sleeve adversely affects the accuracy of the spirit level. In fact, if the level detection carries out a relative movement in the spirit level body caused by thermal expansions along an axis normal to a measuring surface of the spirit level, a nail sleeve can act as a fulcrum against the level detection and thus add a rotational movement to the purely translatory motion caused by the thermal expansion. Through this rotation, the calibration position of the dragonfly is lost.
    However, by providing a guide which prevents displacement of the bubble socket parallel to the longitudinal axis of the spirit level body and permits movement of the bubble body normal to a measurement surface of the spirit level body, the above-described negative effect on thermal expansion does not occur and the dragonfly maintains its calibration attitude.
    It is preferably provided that the level detection is fixed by at least one spring in spirit level body. The at least one spring presses the dragonfly socket on the inner wall of the spirit level body. Preferably, the level of dragonflies in the spirit level body between the narrow sides of the spirit level body forming profile is braced. The fixation via a spring allows movement of the level detection as described above. The spring may be formed, for example, as a leaf spring or as a spiral spring. It can be provided several springs.
    The invention is particularly suitable for circular levels, that is those dragonflies that serve to read the vertical orientation of the spirit level (vertical vials). Circular vials usually have a can-shaped, so cylindrical shape.
    The invention will be explained in more detail with reference to the following figures. Showing:
    1 is a cross-sectioned spirit level according to the prior art,
    2 a spirit level in a first embodiment,
    3 shows a level control in one embodiment,
    4a to 4c, a fixing agent in one embodiment.
    Fig. 1 shows a spirit level 1 according to the prior art. The spirit level 1 has two plane-parallel measuring surfaces 9. A dragonfly socket 4 is jammed by excess compared to the spirit level body 2 in this and optionally additionally glued. The dragonfly socket 4 is secured here by a nail sleeve 21 against displacement in the longitudinal axis in spirit level body 2. Also indicated is the dragonfly 3, here executed as a circular level, which is inserted into the dragonfly socket 4. When going through temperature fluctuations there is a risk that the level 3 loses its calibration position, since a tilting moment with respect to the nail sleeve 21 may occur.
    Fig. 2 shows a spirit level 1 according to the invention in a first embodiment. The dragonfly socket 4 is braced against the inner wall of the spirit level body 2 via a spring 19 (embodied here as a leaf spring). A recess 23 in the level adjustment 4 is formed as a slot. In the recess 23, a fixing 8 is introduced through the walls of the spirit level body 2. Thus, upon the occurrence of thermal expansion between spirit level body 2 and 4 dragonfly socket relative movement of the level armature 4 take place along the guide formed from recess 23 and fixing means 8 without a tilting moment is impressed on the level 4. The direction of movement of the level 4 dam, as it can be caused by thermal expansion within the spirit level body 2 is indicated by a black block arrow. For completeness, a section A-A is shown by the spirit level body 2, which has a rectangular hollow profile in the present example.
    FIG. 3 shows a possible embodiment of the level detection 4. The level section 4 has a first recess 18 for receiving a level 3. Furthermore, a receptacle 20 for one or more springs 19 (not shown here) is provided on the level 4. About the spring or springs 19, the level 4 can be clamped against the inner wall of a spirit level body 2. In the present example, the receptacle 20 is designed for inserting a leaf spring. A spirit level body 2 is indicated by dashed lines to illustrate the installation position of the level 4 dam.
    In the recesses 23 2 fixing means 8 (not shown here) can be used in the installed position of the level adjustment 4 by corresponding openings in the spirit level body. The recesses 23 are designed as elongated holes, wherein the longitudinal axis of the recess 23 is transverse to the longitudinal axis of the spirit level body 2. In this way, it is possible to store the level 4 dam in the spirit level body 2, which allows free movement of the dragonfly socket 4 (direction of movement indicated by the black block arrow) and at the same time the vial holder 4 against displacement in the longitudinal direction of the spirit level 1 secures (about collisions).
    Since the expected movements due to thermal expansion are very small (a few 1/10 millimeters), the longitudinal extent of the recesses 23 may be only slightly larger than their width.
    The spring or springs 19 are preferably made of metal, preferably steel. Compared to plastic springs, metallic springs offer better long-term stability and maintain spring force.
    An adjustment of a dragonfly 3 in the level holder 4 can be done before or after installation.
    FIGS. 4a to 4c show different views of a fixing device 8 designed as a two-part pin 12. Shown is a respective half of a pin. The pins 12 also form a cover 17 for the dragonfly 3 in the embodiment shown.
    The pins 12 can be inserted via corresponding openings in the spirit level body 2 into the recess 23 (see, for example, FIG. 3) and can be connected to one another via snapper 13.
    List of reference signs: 1 spirit level 2 spirit level body 3 level bubble 4 level indicator 8 fixative 9 measuring surface 12 pin 13 snapper 17 cover 18 recess 19 spring 20 receptacle 21 nail sleeve
    权利要求:
    Claims (7)
    [1]
    claims:
    1. Spirit level (1), which has a hollow profile as spirit level body (2) and at least one dragonfly (3) with a dragonfly socket (4), characterized in that the level adjustment (4) in the spirit level body (2) is movably mounted and the dragonfly socket (4) has a recess (23) into which a fixing means (8) through a wall of the spirit level body (2) is insertable, wherein the fixing means (8) prevents displacement of the dragonfly socket (4) parallel to the longitudinal axis of the spirit level body (2) and a movement of the dragonfly socket (4) allows normal to a measuring surface (9) of the spirit level body.
    [2]
    2. Spirit level (1) according to claim 1, characterized in that the fixing means (8) is designed as a sleeve.
    [3]
    3. Spirit level (1) according to claim 1, characterized in that the fixing means (8) is designed as a bolt.
    [4]
    4. Spirit level (1) according to claim 1, characterized in that the fixing means (8) in the form of a two-part pin (12) with latches (13) is formed, wherein the halves of the two-piece pin (12) by opposing walls of the spirit level body ( 2) can be inserted and locked by snapping the snapper (13) with each other.
    [5]
    5. Spirit level (1) according to at least one of the preceding claims, characterized in that the recess (23) is formed as a slot.
    [6]
    6. Spirit level (1) according to at least one of the preceding claims, characterized in that the level of dragonflies (4) via at least one spring (19) is fixed in spirit level body.
    [7]
    7. Spirit level (1) according to at least one of the preceding claims, characterized in that the dragonfly (3) is designed as a vertical vial of the spirit level (1).
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    同族专利:
    公开号 | 公开日
    CN106338273A|2017-01-18|
    AT517233B1|2016-12-15|
    DE102016007517A1|2017-01-12|
    CN106338273B|2019-08-02|
    US10151586B2|2018-12-11|
    US20170010097A1|2017-01-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US73670A|1868-01-21|Improvement |
    US813561A|1905-10-04|1906-02-27|Rudolph Leonhart|Level.|
    US926661A|1909-02-03|1909-06-29|Henry W Leiby|Spirit-level.|
    US1012668A|1911-06-05|1911-12-26|Viktor Lofberg|Level.|
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    US1435365A|1921-01-21|1922-11-14|Zieman Harry John|Level|
    US1489572A|1922-03-01|1924-04-08|Fred O Bennewitz|Spirit level|
    US1757283A|1927-01-10|1930-05-06|Empire Level Mfg Company|Level|
    US2557291A|1946-02-20|1951-06-19|Richard T Hubbard|Spirit level holder|
    CH343655A|1956-08-20|1959-12-31|Wyler Max|Spirit level with adjustable bubble tube|
    CH623413A5|1978-03-01|1981-05-29|Wyler Ag|
    US4335524A|1980-11-28|1982-06-22|Schimming Fred H|Spirit level|
    US4996777A|1989-08-09|1991-03-05|Johnson Level & Tool Mfg. Co., Inc.|Snap-in level vial cover|
    DE3936591A1|1989-11-03|1991-05-08|Stiefelmayer Kg C|Spirit level, esp. for aligning surfaces, shafts, etc. - has elongated bubble in intermediate carrier, with rubber elastic mounting for protection|
    US5111589A|1991-09-26|1992-05-12|Tate Edwin M|Adjustable plumb/level|
    FR2743880B1|1996-01-22|1998-03-27|Tessier Bernard|DEVICE FOR ADJUSTING THE ALIGNMENT OF A BEAM OF A LASER DIODE|
    US5992033A|1997-04-16|1999-11-30|Scarborough; Dane|Shock absorbing, easily calibrated vial system for a carpenter's level|
    US6176020B1|1998-01-07|2001-01-23|Dane Scarborough|Anti-thermal expansion vial mounting system|
    US6293023B1|1999-04-29|2001-09-25|Jason R. Crowe|Level|
    CN2389391Y|1999-07-14|2000-07-26|张竹|Stable input walking mechanism for computer large figure scanner|
    AT414044B|2004-01-28|2006-08-15|Sola Messwerkzeuge Gmbh|SPIRIT LEVEL|
    JP4215755B2|2005-07-29|2009-01-28|株式会社エビス|Level|
    GB0606924D0|2006-04-07|2006-05-17|Sparrow Paul A|Coloured-illuminated sonic level, set square and angle finder|
    CN101311671A|2007-05-22|2008-11-26|P·费利西亚诺|Woodworker leveler|AT521028B1|2018-07-18|2019-10-15|Sola Messwerkzeuge Gmbh|Spirit level with a spirit level body|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA441/2015A|AT517233B1|2015-07-07|2015-07-07|spirit level|ATA441/2015A| AT517233B1|2015-07-07|2015-07-07|spirit level|
    DE102016007517.1A| DE102016007517A1|2015-07-07|2016-06-20|spirit level|
    US15/196,595| US10151586B2|2015-07-07|2016-06-29|Spirit level|
    CN201610527327.3A| CN106338273B|2015-07-07|2016-07-06|Level meter|
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