CN101358822A - Tape measure with extended standout - Google Patents
Tape measure with extended standout Download PDFInfo
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- CN101358822A CN101358822A CNA2008102143235A CN200810214323A CN101358822A CN 101358822 A CN101358822 A CN 101358822A CN A2008102143235 A CNA2008102143235 A CN A2008102143235A CN 200810214323 A CN200810214323 A CN 200810214323A CN 101358822 A CN101358822 A CN 101358822A
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- hook
- chi sheet
- tape measure
- sheet
- reinforcement
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Abstract
The invention relates to a tape measure with extended standout, comprising: a main case having first and second sidewalls and a peripheral wall extending between the sidewalls; a flexible tape blade selectively deployable from the case, the said blade comprising a longitudinal axis, a distal end portion, an inner end portion, and an expected buckling region therebetween; when the blade is expanded in the main case, the distal end portion is expanded in the expected buckling region and before the inner end portion; the tape measure also includes a hook attached to the distal end portion of the tape blade, and the hook can move a certain distance along the longitudinal axis of the tape blade; the said hook has a first section disposed generally parallel to the longitudinal axis and a second section connected thereto and disposed generally normal to the longitudinal axis; the tape measure also includes a reinforcement member which is different from the said blade but connected with the expected buckling region of the blade.
Description
The present invention is denomination of invention the dividing an application for No. 200480042203.1 application for a patent for invention of " tape measure with lengthening degree of stretching out " of on Dec 20th, 2004 application.
The application requires in the rights and interests of the 60/533rd, No. 093 U.S. Provisional Application of proposition on Dec 30th, 2003.
Technical field
Generally speaking, the present invention relates to tape measure, more particularly the present invention relates to a kind of automatic retraction tape measure.
Background technology
Modern tape measure (or banded rule) generally includes the chi band of coiling, and this chi band applies bias voltage towards advanced position by spring.Shell usually surrounds also protection chi band and retraction spring, and shell comprises an opening, and the far-end of chi band trails by this opening.Usually, bend tape casing comprises two half-shells parts, and these two parts are linked together by one or more screws.In addition, one of them half-shells generally includes inwardly outstanding integral post, and this solid strut provides by point for an end of retraction spring.In assembling process, spool is placed on the pillar, make pillar connect retraction spring, another half-shells with shell is connected on first half-shells then, and the spool that is twining the chi sheet is remained between them.In use, in shell, the far-end of chi sheet is pulled out; When decontroling the chi sheet, spring is withdrawn into the chi sheet in the shell, gets back to advanced position thereby chi is brought back to.The chi sheet of withdrawal is wrapped on the spool usually, and itself is supported on spool on the shell rotationally.
A characteristic of the tape measure that the consumer pays close attention to is " a chi sheet degree of stretching out ", and chi sheet degree of stretching out is the chi sheet measured in crooked (folding) its length that can stretch out from shell before.To be that degree of stretching out is long more unreasonablely think universal on the market, because the long more distance that makes the chi sheet cross over of degree of stretching out is just long more, for example can be the distance between the house rafter in the process of construction.
Though people had adopted many kinds of methods to improve degree of stretching out, do not have a kind of method to prove to be entirely satisfactory.Therefore, still need to improve the design of tape measure, especially need those that tape measure of longer degree of stretching out is provided than standard design.
Summary of the invention
The present invention relates to a kind of tape measure.A kind of tape measure is provided in one embodiment, and this tape measure comprises: main casing, the peripheral wall that this main casing has first, second sidewall and extends between sidewall; The elastic scaler sheet that can from housing, launch selectively; When this chi sheet was launched from main casing, it had the roughly transversal section of curved shape, and when the chi sheet was withdrawn in the main casing, it had the profile of general flat; Hook is fixed on the hook of chi sheet first end, so that can move a segment distance along the longitudinal axis of chi sheet; Described hook has roughly the first that be arranged in parallel with longitudinal axis and is connected on the longitudinal axis and is approximately perpendicular to the second portion of longitudinal axis, and the weight of hook is not more than 0.60 times of steel hook weight of same size.This hook can contain titanium, and for example it can mainly be made of titanium, perhaps can select to make this hook to contain aluminium.The width of chi sheet can be not more than about 1.10 inches, and its degree of stretching out is at least
The foot, for example degree of stretching out can
The foot peace treaty
Between the foot, this is very useful.Applied the withdrawal bias voltage on the chi sheet, this is very useful in the past.It is regional that the chi sheet can comprise that extension is colluded in distal portion, inner end and the expection between distal portion and inner end; When the chi sheet was launched in main casing, distal portion was launched before extension zone and inner end are colluded in expection; And this tape measure assembly can also comprise that being connected to expection colludes reinforcement on the chi sheet of hanging in the zone, and distal portion and inner end do not have reinforcement, and expection is colluded and hung the zone and be included in degree of the stretching out test that does not have reinforcement and collude the position that hangs the chi sheet usually.
In another embodiment, the invention provides a kind of tape measure, this tape measure comprises: main casing, the peripheral wall that this main casing has first, second sidewall and extends between sidewall; The elastic scaler sheet that can from described housing, launch selectively; When the chi sheet was launched from main casing, it had the roughly transversal section of curved shape.And when the chi sheet was withdrawn in the main casing, it had the profile of general flat; It is regional that the chi sheet comprises that extension is colluded in distal portion, inner end and the expection between distal portion and inner end; When the chi sheet launched in housing, distal portion was launched before extension zone and inner end are colluded in expection; Hook is fixed on the hook of chi sheet distal portion, so that can move a segment distance along the longitudinal axis of chi sheet; Described hook has roughly the first that be arranged in parallel with longitudinal axis and is connected on the longitudinal axis and is approximately perpendicular to the second portion of longitudinal axis; Be different from expection and collude the reinforcement of hanging chi sheet in the zone but being connected to this chi sheet, distal portion and inner end do not have reinforcement; Expection is colluded and is hung the regional position of colluding extension chi sheet usually in degree of the stretching out test that does not have reinforcement that is included in.Reinforcement can comprise sheet metal.Reinforcement can comprise the fiber reinforcement that longitudinally is provided with, and useful is that the fiber reinforcement comprises the material of selecting from one group of material of carbon and aramid formation.Useful is can the expection that this reinforcement is fixed on the chi sheet be colluded in the extension zone by bonding agent, and/or this reinforcement can be fixed on the upside of chi sheet.Described expection is colluded and is hung the position that the zone can be between about 9 to 10.5 feet of distance hook.Hook has that to be not more than about 0.60 weight coefficient be very useful.
In another embodiment, the invention provides a kind of tape measure, this tape measure comprises: main casing, the peripheral wall that this main casing has first, second sidewall and extends between sidewall; The elastic scaler sheet that can from housing, launch selectively; When this chi sheet was launched from main casing, it had the roughly transversal section of curved shape.And when the chi sheet was withdrawn in the main casing, it had the profile of general flat; It is regional that the chi sheet comprises that extension is colluded in longitudinal axis, distal portion, inner end and the expection between distal portion and inner end; When the chi sheet was launched in main casing, distal portion was launched before extension zone and inner end are colluded in expection; Hook is fixed on the hook of chi sheet distal portion, so that can move a segment distance along the longitudinal axis of chi sheet; Described hook has roughly the first that be arranged in parallel with longitudinal axis and is connected on the longitudinal axis and is approximately perpendicular to the second portion of longitudinal axis; The chi sheet has impartial substantially tranverse sectional thickness on inner end and distal portion; Collude to hang on the zone in expection and have unequal tranverse sectional thickness, its away from the thickness of chi sheet longitudinal axis part greater than it at the thickness that closes on the longitudinal axis part; If whole chi sheet all has impartial tranverse sectional thickness, then expection is colluded extension and is colluded the position that hangs the chi sheet regional comprising usually in degree of stretching out test.Useful is, described expection is colluded and hung the position that the zone can be between about 8 to 10.5 feet of distance hook.Hook has that to be not more than about 0.60 weight coefficient be very useful.
Description of drawings
Fig. 1 is the side view according to the embodiment of a tape measure of body plan of the present invention.
Fig. 2 is the stereographic map according to an embodiment of bend tape casing of the present invention, for clarity sake, has removed some parts (for example screw, clip etc.) in this stereographic map.
Shown in Fig. 3 is the sectional view of an embodiment of end hook of the present invention along chi sheet longitudinal axis.
Fig. 4 stretches out side view under the state for the tape measure shown in Fig. 1 at the chi sheet.
Fig. 5 A~5D is the sectional view that is applicable to a plurality of embodiment of chi sheet of the present invention.
Fig. 6 shows the anchor clamps of chi sheet degree of stretching out test.
Embodiment
Fig. 1 shows a kind of tape measure of the body plan according to the present invention, and this tape measure is totally represented with 10.Tape measure 10 comprises the dip stick sheet 40 that can reel and the shell 20 that is attached thereto.End hook 70 is fixed on the far-end of chi sheet 40.The chi sheet biasing member such such as the retraction spring (not shown) is operatively coupled on the chi sheet 40, so that chi sheet deflection retraction direction.Locking mechanism, this locking mechanism are provided with and comprise toggle switch 16 or similar brake component, enter and leave the motion of shell 20 with auxiliary control chi sheet 40.If desired, the one or both sides of shell 20 can comprise clip 18.
As shown in Figure 2, shell 30 can be configured to two parts: right-hand side part 30a and left-hand side part 30b, as known in the art, adopt suitable screw 38 that these two parts are linked together.If desired, the external structure of housing two parts 30a, 30b and gripper part 36 can be symmetrical valuably, but this is optional.In fact, as known in the art, above-mentioned two parts 30a, 30b can have different inside and outside structures, and this depends on the internal work of tape measure 10.But, because the present invention relates generally to chi sheet 40 and hook 70, so the details of shell 30 external structures is unimportant for understanding the present invention.Can in publication number is 2003/0,233,762 U.S. Patent application, find information, comprise the content of above-mentioned application here by reference about the possible external structure of housing 20.Be also noted that the 4th, 527, No. 334, the 4th, 976, No. 048, the 6th, 349, No. 482 and the 6th, 718, No. 649 United States Patent (USP)s comprise the content of above-mentioned all applications here by reference, to be used for further discussing the general structure design and the operation of retraction tape measure 10 automatically.
For the reason of desirable strength and durability, in the prior art, adopt steel to make the hook of tape measure.For example the measured tape measure of matter needs and can stand the chi sheet hook of retracting motion (for example bounce back number of times 〉=2,000 time) repeatedly.Though mild carbon steel (i.e. 1050 types) is suitable for this application scenario, steel are quite heavy materials, and the present inventor finds: the steel end hook of tape measure end is gained in weight stretching out of chi sheet 40 produced adverse effect.Especially, if alleviate the weight of hook 70, then can increase the degree of stretching out of chi sheet.But the size that only reduces hook 70 can have a negative impact to intensity, durability and the practicality of hook 70, particularly after chi sheet 40 repeated multiple times retraction.Therefore, the preferred embodiments of the present invention utilize weight coefficient to be no more than about 0.60 hook 70, and term used herein " weight coefficient " refers to the weight ratio of hook 70 and measure-alike steel hook.For example, for keeping required durability, some embodiments of the present invention with about 1 inch wide chi sheet 40 have the hook of being made by titanium or titanium alloy 70, the hook 70 of this titanium system has the weight of 2.27 gram forces, and the identical steel hook of size has the weight of 4.08 gram forces, and the result produces 0.556 weight coefficient.So just when keeping ideal dimensions and durability, make the minimizing of hook 70 weight of chi sheet 40 1 ends near half.The example of the equivalent material of hook 70 comprises aluminium and the aluminium alloy that adopts punching press or casting process processing.
The structure of tape measure 10 of the present invention makes it have improved degree of stretching out.A kind of method of measurement degree of stretching out is: chi sheet 40 is extended from shell 20, hang down under the action of gravity of chi sheet at himself (the present invention generally is called this " bending " or " bending ").The anchor clamps of use standard are convenient to the structure of the different tape measures of comparison.Fig. 6 shows a sample of operable a kind of anchor clamps 90.Anchor clamps 90 comprise 4 inches high supporting brackets 92, and it is 1/2 inch coboundary that this supporting bracket has radius.Supporting bracket 92 can comprise two rotational pin 94 (for example 1/8 inch rotational pin) from chi sheet 40 to side slip or other parts of preventing.Diameter is the place that 1 inch horizontal pin 96 is arranged on 6 inches of the center back of distance bracket 92, so that leave 7/32 inch gap between horizontal pin 96 and bottom surface flange 98.Tape measure 10 is placed on the back of horizontal pin 96, emits chi sheet 40 from supporting bracket 92 tops.Chi sheet 40 stretches lentamente until producing bending.Under the situation that hook 70 occurred, the distance from the center line of supporting bracket 92 to hook 70 (the more precisely distal face of second portion 76), the numerical value of degree of stretching out exactly.In most of embodiment, have under the situation of chi sheet 40 that width is about 1 inch according to tape measure 10 of the present invention, its degree of stretching out is at least
Foot.
For show adopt weight coefficient be 0.60 or littler hook 70 can increase degree of stretching out, we test.The test method that utilization outlines has above been measured two kinds of existing procucts that have the steel end hook.In test, removed steel hook 70 has been fixed on rivet on the chi sheet 40, to unclamp the steel hook.Utilize adhesive tape that steel hook and rivet are fixed on an end of chi sheet 40 then, and utilize above-mentioned anchor clamps 90 to measure the degree of stretching out of the sample of three each above-mentioned this structures.Remove steel hook 70, utilize then adhesive tape the titanium system hook 70 of identical shaped coefficient is fixed on the end of same chi sheet 40 (with rivet together).Utilize above-mentioned anchor clamps 90 to measure the degree of stretching out of three each samples then.The weight of steel hook is 0.0084 pound, and the weight of titanium system hook 70 is 0.0046 pound.Thereby under all identical situation of other all variablees, this test utilizes the hook of Different Weight coefficient to compare the result of degree of stretching out, and following table 1 shows these test findings.
Table 1-degree of stretching out result (inch)
These test findings show that the operating weight coefficient has increased degree of stretching out less than 0.60 hook.For Lufkin
2125 chi sheet, its degree of stretching out have on average increased about 3.6 inches.For Lufkin
The chi sheet of PS3425, its degree of stretching out have on average increased about 2.9 inches.
We use Max Steel
Tape measure has been done other battery of tests, can obtain Max Steel from the Stanley Works of New Britain factory of the Connecticut State
Tape measure.It is 1 inch chi sheet that this tape measure has adopted width, and it measures length can reach 25 feet.The test method of this group test is similar to the mode of the test that provides above, and the weight of steel hook is 0.0086 pound, and the weight of titanium system hook 70 is 0.0051 pound.Like this, under all identical situation of all other variablees, described test utilizes the hook of Different Weight coefficient to compare the result of degree of stretching out.This test findings is shown in the table 2.
Table 2-degree of stretching out result (inch)
These test findings show that the operating weight coefficient has increased degree of stretching out less than 0.60 hook.For Max Steel
Chi sheet, degree of stretching out have on average increased about 8.7 inches.
Though the test findings that provides above have less than
The degree of stretching out of foot, but those skilled in the art should be able to adjust the thickness of chi sheet, profile and/or other characteristic of chi sheet increases to desirable length with degree of stretching out.About the out of Memory of this respect, can note United States Patent (USP) the 6th, 324, No. 769, comprise the content of above-mentioned application here by reference.
Be to be understood that tape measure 10 of the present invention can also comprise other feature, for example it can comprise the damping, buffering device that closes on opening 27, chi sheet, various locking mechanism, hook stiffening plate and the like of special coating.These all are known in this area.
Certainly, under the situation that does not break away from substantive features of the present invention, can adopt the alternate manner except that those modes of setting forth to implement the present invention here.Therefore, in all its bearings, all should regard these present embodiment as illustrative, and nonrestrictive.All variations in claim meaning scope and equivalency range thereafter all are contained in this scope.
Claims (10)
1. tape measure, it comprises:
Main casing, the peripheral wall that this main casing has first, second sidewall and extends between described sidewall;
The elastic scaler sheet that can from described housing, launch selectively; When described chi sheet was launched from described main casing, it had the roughly transversal section of curved shape, and when described chi sheet was withdrawn in the described main casing, it had the profile of general flat; It is regional that described chi sheet comprises that extension is colluded in distal portion, inner end and the expection between distal portion and inner end; When described chi sheet launched in described main casing, described distal portion was launched before extension zone and described inner end are colluded in described expection;
Described hook is fixed on the hook of described chi sheet distal portion, so that can move a segment distance along the longitudinal axis of described chi sheet; Described hook has roughly the first that be arranged in parallel with described longitudinal axis and is connected on the described longitudinal axis and is approximately perpendicular to the second portion of this longitudinal axis;
Be different from described chi sheet but be connected to the described expection of this chi sheet and collude the reinforcement of hanging in the zone, described distal portion and described inner end do not have described reinforcement;
Described expection is colluded and is hung the regional position of colluding the described chi sheet of extension usually in degree of the stretching out test that does not have described reinforcement that is included in.
2. tape measure as claimed in claim 1, wherein said reinforcement comprises sheet metal.
3. tape measure as claimed in claim 1, wherein said reinforcement comprise the fiber reinforcement that longitudinally is provided with.
4. tape measure as claimed in claim 3, wherein said fiber reinforcement comprise the material of selecting from one group of material of carbon and aramid formation.
5. tape measure as claimed in claim 1, wherein said reinforcement collude in the described expection of described chi sheet by adhesive and hang in the zone.
6. tape measure as claimed in claim 1, wherein said expection collude hangs the position of zone between about 9 to 10.5 feet of the described hook of distance.
7. tape measure as claimed in claim 1, wherein said hook have and are not more than about 0.60 weight coefficient.
8. tape measure as claimed in claim 1, wherein said reinforcement is fixed on the upper side of described chi sheet.
9. tape measure as claimed in claim 1, wherein
Described expection is colluded and is hung the position of zone between about 9 to 10.5 feet of the described hook of distance;
Described hook has and is not more than about 0.60 weight coefficient; And
Described reinforcement comprises sheet metal.
10. tape measure as claimed in claim 1, wherein
Described expection is colluded and is hung the position of zone between about 9 to 10 feet of the described hook of distance;
Described reinforcement comprises the fiber reinforcement that longitudinally is provided with, and described fiber reinforcement comprises the material of selecting from one group of material of carbon and aramid formation; And
Described hook has and is not more than about 0.60 weight coefficient.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53309303P | 2003-12-30 | 2003-12-30 | |
US60/533,093 | 2003-12-30 | ||
US11/013,858 | 2004-12-16 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB2004800422031A Division CN100429470C (en) | 2003-12-30 | 2004-12-20 | Tape measure with extended standout |
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CN101358822A true CN101358822A (en) | 2009-02-04 |
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CNB2004800422031A Active CN100429470C (en) | 2003-12-30 | 2004-12-20 | Tape measure with extended standout |
CNA2008102143235A Pending CN101358822A (en) | 2003-12-30 | 2004-12-20 | Tape measure with extended standout |
CNA2008102143220A Pending CN101358821A (en) | 2003-12-30 | 2004-12-20 | Tape measure with extended standout |
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CNB2004800422031A Active CN100429470C (en) | 2003-12-30 | 2004-12-20 | Tape measure with extended standout |
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CNA2008102143220A Pending CN101358821A (en) | 2003-12-30 | 2004-12-20 | Tape measure with extended standout |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114623741A (en) * | 2017-09-26 | 2022-06-14 | 艾沛克斯品牌公司 | Tape measure with improved extension |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI805056B (en) | 2016-09-08 | 2023-06-11 | 美商米沃奇電動工具公司 | Tape measure with reinforced tape blade and/or tear reducing hook configuration |
CN111033167B (en) * | 2017-08-24 | 2022-05-13 | 米沃奇电动工具公司 | Tape measure with tape blade profile to increase tape protrusion |
CN116018495B (en) * | 2020-08-14 | 2024-04-09 | 艾沛克斯品牌公司 | Measuring tape with improved anti-roll function and prominence |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6324769B1 (en) * | 1999-08-04 | 2001-12-04 | The Stanley Works | Rule assembly with increased blade standout |
GB2371868B (en) * | 2001-01-31 | 2003-12-03 | Precimed Sa | Flexible measurement device |
-
2004
- 2004-12-20 CN CNB2004800422031A patent/CN100429470C/en active Active
- 2004-12-20 CN CNA2008102143235A patent/CN101358822A/en active Pending
- 2004-12-20 CN CNA2008102143220A patent/CN101358821A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114623741A (en) * | 2017-09-26 | 2022-06-14 | 艾沛克斯品牌公司 | Tape measure with improved extension |
CN114623741B (en) * | 2017-09-26 | 2024-01-05 | 艾沛克斯品牌公司 | Tape measure with improved extension |
Also Published As
Publication number | Publication date |
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CN101358821A (en) | 2009-02-04 |
CN100429470C (en) | 2008-10-29 |
CN1922462A (en) | 2007-02-28 |
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