JP2014085198A - Tape measure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape measure capable of reducing a folding trace of an edge part of a measuring tape occurring when a tape for measurement is wound up by enabling suppression of winding-up speed of the measuring tape.SOLUTION: A film 1 having a determined thickness is provided on at least a recessed surface side 2a of a measuring tape 2.

Description

  The present invention relates to an automatic winding type tape measure, and more particularly to a tape measure that can suppress the winding speed of a measuring tape.

  When not in use, the measuring tape is wound around a rotating drum that is rotatably supported in the case, and when the measuring tape is pulled out of the case, the rotating drum rotates in the tape pulling direction. At the same time, a mainspring spring as an urging means incorporated in the rotating drum is urged (wound).

  When the measuring tape is stored in the case, the spring spring in the biased state built in the rotating drum is released by releasing the hand from the measuring tape, so that the rotating drum is in a direction opposite to the tape drawing direction. The measuring tape is wound around a rotating drum, and the measuring tape is stored in the case.

  However, the winding speed of the measuring tape is very fast, and when the measuring tape is about to be stored in the case, the measuring tape outside the case is exposed to the tape surface in the vertical direction or the tape width direction, This rampage sometimes left folds on the edge of the measuring tape.

  Generally, as a countermeasure, it is easy to think that it is sufficient to reduce the winding speed of the measuring tape. However, those who use the tape measure at work (craftsmen) should store the measuring tape in the case as soon as possible. Since there are so many people who want to move to the next work (work), the measure of simply reducing the winding speed of the measuring tape has not been effective. Therefore, this problem has not been solved yet.

JP 2004-226125 A

  An object of the present invention is to be able to provide a tape measure capable of suppressing the winding speed of the measuring tape and reducing the trace of the edge portion of the measuring tape.

  In order to solve the above-mentioned problems, the tape measure according to the present invention is capable of freely rotating a rotating drum having a case in which a measuring tape is wound around and energizing means for biasing the measuring tape in the winding direction is provided in the case. A speed-control member having a predetermined thickness is provided on at least the concave surface side of the measuring tape.

  In this tape measure, the main body case is usually composed of a pair of two cases, and a shaft is erected on the inner surface of one of the cases, and a rotating drum that winds a measuring tape around the measurement tape around the shaft. It is supported. Note that there are cases in which three or more cases are combined depending on the configuration of the case.

  Further, a mainspring spring is provided inside the rotary drum, and a biasing force is accumulated in the mainspring spring by pulling a measuring tape wound around the rotary drum to the outside of the case.

  When the accumulated urging force is released, the mainspring spring tries to return to the initial state, so that the pulled-out measuring tape is drawn into the case and the rotating drum is rotated and wound around the rotating drum. To go.

A speed suppressing member having a predetermined thickness is attached to the concave surface side of the measuring tape in the tape measure having such a configuration by using an appropriate adhesive means or adhesive means. For example, a flexible film, a resin plate, or the like may be used as the speed suppressing member, and a cylindrical film may be used (in this case, the concave side and the convex side of the measuring tape). A speed suppressing member is provided). Further, unevenness (embossing / dimple formation) may be provided on part or all of the surface.
The above resin plate is understood as a film having a large thickness in the present invention. Therefore, the resin plate is a part of the film member.

  The speed suppression member is provided with a length of several millimeters to several meters in a desired position of the measurement tape according to the speed suppression mode of the measurement tape (for example, the rate at which deceleration or acceleration is stopped) Thicknesses of several millimeters to several tens of centimeters may be provided at appropriate intervals, for example, with several tens of centimeters of mail spaced evenly, or gradually widened or narrowed, or irregularly spaced. May be provided.

  When a plurality of speed control members are provided, the speed control members have the same thickness, or have two or more thicknesses, two or two or more length dimensions. One having two or more widths may be appropriately disposed. The thickness of these speed suppressing members may be selected according to various tape measures in consideration of the degree of deceleration of the measuring tape. The thickness of the speed-suppressing member is preferably within a maximum of 0.5 mm in consideration of the winding state of the rotating tape of the measuring tape, but this dimension is sufficient if there is a margin for winding the measuring tape. It is not limited to.

  And when providing the member for speed control on the number required for measurement, such as the scale of the measuring tape surface, a transparent member for speed control (for example, transparent film so that the scale under the member for speed control can be read) Or a transparent plate). Further, a colored translucent film or plate may be provided as long as the scale can be read and there is no problem in measurement.

  In addition, when providing the member for speed suppression on the measurement tape surface, it should just provide using a suitable well-known technique, and this member for speed suppression can be affixed on a tape surface using an adhesive agent, an adhesive, or a double-sided tape. That's fine.

  The speed suppressing member may be selected and used according to specifications such as the shape of the measuring tape and the winding speed of the mainspring spring for winding the measuring tape. Usually, a synthetic resin material (for example, polyester) is used. It is preferable to use a member for restraining the speed of flexibility of vinyl chloride, vinyl chloride, and materials produced based on these.

  The degree of flexibility of the speed-suppressing member means that it can move following the measuring tape when it is provided on the measuring tape, except for those having a size of approximately 1 centimeter or less. For example, the measuring tape is wound around a rotating drum. When it is taken, the speed-reducing member of the measuring tape is soft enough to be wound up without any trouble, and when the measuring tape is bent 180 degrees to the concave side or the convex side, the speed-reducing member is Softness that does not peel off.

  According to the tape measure of the present invention, the speed of the measuring tape drawn into the case at a high speed is suppressed at the position where the speed suppressing member is disposed, that is, this measurement is performed when the measuring tape is wound around the rotating drum. The speed control member such as a film or plate placed on the tape surface acts as a winding resistance to suppress the rotation of the rotating drum (deceleration of constant rotation / stop of rotation acceleration). The speed can be suppressed from decelerating or accelerating, and the trace of the edge of the measuring tape can be greatly reduced.

  In addition, the present invention can be applied to various measuring tapes with different measuring tape winding speeds because the measuring tape can be decelerated or accelerated from a desired position by a very simple method. Therefore, it is a method of reducing the winding speed of the measuring tape having a very large degree of freedom.

  In addition, a speed control member and a list showing the degree of suppression of the winding speed of the measuring tape with respect to the position where the speed control member is attached are attached so that the user can attach the speed control member. In this case, the user can freely select a place to suppress the deceleration or acceleration of the measuring tape.

The perspective view which shows the tape measure which concerns on this invention. The perspective view which shows the tape measure which concerns on this invention. Sectional drawing of a measuring tape. The figure which shows an example of the affixing position of the member for speed suppression. A side view with a part cut away of a tape measure.

  Hereinafter, the tape measure according to the present invention will be described based on specific examples shown in the accompanying drawings. FIG. 1 shows a film 1 as a speed suppressing member provided on a concave surface 2 a of a measuring tape 2.

  FIG. 2 shows the film 1 as a speed suppressing member provided at two locations on the concave side 2 a of the measuring tape 2.

  The width direction of the measuring tape 2 of the film 1 in FIGS. 1 and 2 is located up to the vicinity of the tape edge portion 2b of the measuring tape 2, so that a transparent film is used so that the scale 2d can be seen through.

  An example of the arrangement of the film 1 is shown in FIG. 3, (a) in FIG. 3 is a flat plate-like film 1, and this is provided on the concave surface 2 a of the measuring tape 2. (B) in FIG. 3 shows what is provided (attached) to both tape edge portions 2b (substantially the edges of the tape edge) excluding the central portion in the width direction of the measuring tape 2. 3 (c), the film 1 is a cylindrical film, which is attached to the measuring tape 2 and provided on the concave side 2a and the convex side 2c as the back side. The cylindrical film uses a heat-shrink film or forms a film coating using an extrusion technique.

  FIG. 4 shows an arrangement example of the film 1 on the measuring tape 2, and (a) in FIG. 4 is a desired position on the concave side 2 a of the measuring tape 2 (suppresses the speed of the measuring tape 2 during winding). 4 (b) shows the desired position on the concave side 2a of the measuring tape 2 (suppresses the speed of the measuring tape 2 during winding). 4 is a concave surface of the measuring tape 2, which is provided (attached) at one place and elongated to some extent in the longitudinal direction of the measuring tape 2 (several tens of centimeters). This shows the four provided (attached) on the side 2a while being narrowed sequentially from the hook 3 side at the tip of the measuring tape 2.

  Hereinafter, the operation of the tape measure according to the present invention configured as described above will be described. As shown in FIG. 5, the film 1 provided (attached) on the concave surface 2 a of the measuring tape 2 to be wound is attached to the rotating drum 7. When wound, the edge 1a of the film 1 having an appropriate thickness comes into contact with the measuring tape 2 wound around the rotary drum 7, and this contact serves as the rotational resistance of the rotary drum 7 and the speed of the rotary drum 7 is reached. Is decelerated for a moment, whereby the winding speed of the measuring tape 2 is momentarily reduced.

  Even if the winding speed of the measuring tape 2 described above is decreased momentarily, depending on the form of the mainspring spring as the biasing means built in the rotating drum 7 (for example, rotational torque), the winding speed of the measuring tape 2 can be suppressed (constant speed). In addition, there is an effect in the deceleration / acceleration stoppage of the measuring tape 2, and further, due to a momentary decrease in the winding speed of the measuring tape 2, the tape surface of the measuring tape 2 to be wound up and down, and the tape The twist in the width direction was suppressed and the measuring tape 2 could be wound up stably.

  Therefore, the film 1 may be arranged in accordance with the form of the tape measure. FIGS. 4A and 4B in the above description are examples in which the winding speed of the measuring tape 2 is reduced once. The middle (c) is an example in which the winding speed of the measuring tape 2 is intermittently decelerated a plurality of times.

  Note that the corner of the film 1 is preferably rounded to reduce the catch. Moreover, the planar view shape of the film 1 which makes the width direction and length direction of the measuring tape 2 substantially the same dimension may be made into substantially circle shape.

DESCRIPTION OF SYMBOLS 1 ... Film 1a ... Edge 2 ... Measuring tape 2a ... Concave side 2b ... Tape edge part 2c ... Convex side 2d ... Scale 3 ... Hook 4 ... Case 5 ... Belt clip 6 ... Braking lever 7 ... Rotating drum

Claims (6)

  An automatic winding type tape measure that rotatably supports a rotating drum, in which a measuring drum is wound around and surrounded by a biasing means for biasing the measuring tape in a winding direction. A tape measure characterized in that a speed suppressing member having a predetermined thickness is provided at least on the concave surface side.   The tape measure according to claim 1, wherein the speed suppressing member is a flexible film.   The tape measure according to claim 1, wherein a plurality of the speed suppressing members are provided at a desired interval.   The tape measure according to claim 3, wherein two or more types of thicknesses are used for the speed suppressing member.   The tape measure according to claim 3, wherein two or more types of length dimensions are used for the speed suppressing member.   The tape measure according to claim 3, wherein two or more kinds of width dimensions are used for the speed suppressing member.

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