The present invention relates to measurement devices, and in particular, the invention relates to a tape measure.
In one embodiment, the invention provides a tape measure. The tape measure includes a housing assembly defining a cavity and a tape port. A measuring tape is selectively extendable and retractable from the tape port. The measuring tape includes a spool portion disposed within the cavity and an end portion. A top surface extends from the end portion to the spool portion, and a bottom surface extends from the end portion to the spool portion opposite the top surface. A hook member is fixedly coupled to a end portion of the measuring tape. A first measurement scale is defined on the top surface and includes indicia having a first orientation relative to a longitudinal tape axis. The bottom surface includes a second measurement scale with indicia having a second orientation relative to the longitudinal tape axis. The second orientation is substantially opposite the first orientation.
Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways.
The measuring tape 14 is retractable and extendable from the housing assembly 18 along a tape axis 20. A hook member 22 is fixedly coupled to an end portion 26 of the measuring tape 14. Magnets 30 are coupled to a vertical face 32 of the hook member 22. The magnets 30 may be coupled to the vertical face 32 by a rivet, a press-fit, an adhesive, or other fastening means. Additionally, an over-coating 34 may be applied to the hook member 22 and magnets 30. The over-coating 34 may be a paint, an epoxy-resin, tape or other coating type. The over-coating 34 assists in protecting the magnets 30 and hook member 22 from scratches and dirt, while also aiding retention of the magnets 30 to the hook member 22.
The remainder of the measuring tape 14 forms a spool 36 rotatably disposed about an axis 38 of the tape measure 10. A retraction mechanism 42 is coupled to the spool 36 to provide for powered refraction of the measuring tape 14. The retraction mechanism 42 may include an elongated coiled spring for motive force. A tape lock 46 is provided to selectively engage at least one of the spool 36, the retraction mechanism 42, or the tape 14 such that a segment of the measuring tape 14 remains extended a desired length beyond the housing.
The housing assembly 18 includes a first side wall 50, a second side wall 54, and a peripheral wall 58 connecting the first side wall 50 and the second side wall 54. The first side wall 50, second side wall 54, and peripheral wall 58 define an internal cavity 62 in which the spool 36 and retraction mechanism 42 are housed. In the illustrated construction, each of the first side wall 50 and the second side wall 54 has a substantially circular profile 66. In other embodiments, the side walls 50 and 54 may be rectangular or another polygonal shape. Portions of the housing assembly 18 may be co-molded or separately formed of a resilient material, such as a natural or synthetic rubber, forming housing bumpers 70. A support leg 74 extends from a lower portion 78 of the peripheral wall 58.
With continued reference to
Below the slot 82, a tape port 90 is provided in the peripheral wall 58. The tape port 90 has an arcuate shape, corresponding to an arcuate cross-sectional profile of the measuring tape 14. The tape port 90 allows for the retraction and extension of the measuring tape 14 to and from the internal cavity 62. A brush or foam wiper member may be provided adjacent the tape port 90 for wiping dirt and debris from the tape 14 when retracting. The wiper member thus reduces the likelihood of the retraction mechanism 42 becoming fouled.
A guard member 98 is coupled to the housing assembly 18 adjacent the tape port 90. The guard member 98 is U-shaped, with a first leg 104 coupled to the first side wall 50, a second leg 108 coupled to the second side wall 54, and a connecting leg 112 extending between the first leg 104 and the second leg 108. The guard member 98, more specifically the connecting leg 112, is configured to engage the hook member 22 when the measuring tape 14 is fully retracted.
The guard member 98 shields a user's fingers from being struck by the hook member 22 when the measuring tape 14 is rapidly retracted into the internal cavity 62. The guard member 98 also shields the housing assembly from being struck by the hook member 22. In addition, a lower surface 116 of the guard member 98 is substantially aligned with the support leg 74, thereby allowing the tape measure 10 to stand upright on a surface to be measured. In some constructions, the guard member 98 may be formed of a resilient polymer, while in other constructions the guard member may be a substantially rigid material such as a metal, with other materials, combinations of materials, and constructions being possible.
In the illustrated construction of the tape measure 10, a laser 116 is coupled to the peripheral wall 58 between the first leg 104 and the second leg 108. The laser 116 has an illumination axis 120 substantially parallel with the tape axis 20. The laser 116 may be used as a pointer or for illumination of a line of measurement, plumb line, or other purpose. In some constructions, the laser may be a laser rangefinder for distance measurement.
As illustrated in
Referring to
Various features and advantages of the invention are set forth in the following claims.
This application claims priority to U.S. Provisional Patent Application No. 61/527,964, filed on Aug. 26, 2011, the entire contents of which are incorporated by reference herein.
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