CN2325755Y

CN2325755Y - Intermittent stopping structure of tape

Info

Publication number: CN2325755Y
Application number: CN 98202861
Authority: CN
Inventors: 刘禹君
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-02
Filing date: 1998-04-02
Publication date: 1999-06-23
Anticipated expiration: 2008-04-02

Abstract

The utility model relates to an intermittent stopping structure of a tape, which is composed of a casing, a rotary disc which is arranged in the casing, a rotary disc in which a vortex spring is arranged, a ruler which is wound around the rotary disc, a central axis which is arranged in the casing, can be pivoted with the rotary disc and can be clamped with the vortex spring. The utility model has the advantages of simplicity, convenience, safety and reliability. The utility model can be used for lots of industries, such as civil engineering, hydroelectricity, furniture, buildings, etc., and common households.

Description

A kind of brake structure at intermittence of tape measure

The utility model relates to a kind of brake structure at intermittence of tape measure.

The tape measure of habit formula all can be provided with a fixing brake gear before housing, this brake gear is that a push button links an arc crank, after the user is with the finger push push button, crank is moved and the rotating disk in the housing is fixed, cause also transfixion together of the static and chi tool of rotating disk, this moment, the end user can observe size scale on static chi tool; When desiring to make the backrush of chi tool, only need crank and rotating disk are broken away from the push button pushed home, and rotating disk is turned round and related the chi tool is together reclaimed, this is the fixedly function of brake gear of traditional type.

Other has brake gear at a kind of intermittence, purpose is that the chi tool that will desire to furl furls automatically in the mode of intermittently parking, this intermittence brake gear feature be: a sidewall of housing is provided with a hole, in hole, be provided with a button, when pushing this button, can make the sidewall generation friction of button and rotating disk reach the brake purpose, when intermittently exerting pressure this button, then can reach the intermittently purpose of brake, so that the chi tool can not furl rapidly, but interrupted the withdrawal.But this mode more increases cost except that increasing the part, so under the preceding topic that reduces mould, part and cost, still have the space of improvement.

The purpose of this utility model provides a kind of simple and convenient, and safe and reliable tape measure is brake structure intermittently.

For achieving the above object, the utility model is taked following design proposal: be provided with a brake lever on the surface of housing, brake lever is to be formed by connecting by a circle handle and a long handle, all has the slit around the brake lever, and have only the end of long handle to be connected with the housing one, so this brake lever can have suitable elastic reaction.

Aforementioned brake lever can single design in a side of housing, so also can design two sides at housing.

The long handle of brake lever can vertically be provided with, but also level to setting, or with the oblique angle setting; And with tiltedly protruding be good at surface of shell.

Brake lever can also be implemented with a circle handle (or oval handle), and it ties up to connecting with several elastic strips of round handle (or oval handle) all around, makes circle handle (or oval handle) also can have the better elastic effect in hole.

The front end bottom surface of aforementioned brake lever can be set up a plasticity and end sheet, should end sheet and can fix in the mode of cementation with brake lever.

Because aforementioned brake lever has only an end to be connected on the housing, end then is to live in establishing in addition, so brake lever can have the better elastic effect on housing,, the circle shank portion can be pressed in housing and produce rubbing contact with rotating disk as user during with the finger presses brake lever.

After extracting out, it is reclaimed by the long chi of tape measure as desire, then when rotating disk turns round automatically, brake lever can reach locking function finger with the rotating disk contact friction by depressing, and pushes if the user imposes a little to put intermittently, then can make flexible chi tool produce one and receive a braking state at intermittence that stops.

The utlity model has following function:

1, makes flexible chi tool when reclaiming, can not produce recovery effect quickly, therefore can under the state of brake continuously, reclaim with normal speed.

2, can by intermittence brake gear replace fixedly brake gear, or on the tape measure with establishing fixing brake and both devices that intermittently brakes, can make tape measure have fixing and the two kinds of functions of braking intermittence thus.

3, can avoid flexible chi tool when reclaiming, to produce too big impact, so can reduce impulsive force.

4, can avoid flexible chi tool when quickly reclaiming, to injure finger, so security greatly improves.

5, than habit formula intermittently brake gear reduce by a part, and can when making tape measure housing, make intermittently brake gear, so manufacturing cost can reduce with a mould, assembling more easy, time more shortens.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a three-dimensional combination figure of the present utility model

Fig. 2 is a three-dimensional exploded view of the present utility model

Fig. 3 is the sectional drawing of tape measure shown in Figure 1, and the brake gear of tape measure is not operating state among the figure

Fig. 4 is the sectional drawing of tape measure shown in Figure 1, and the brake gear of tape measure is operating state among the figure

Fig. 5 is the stereographic map of another embodiment of the utility model

Fig. 6 is the utility model stereographic map of an embodiment again

Fig. 7 is the stereographic map of the another embodiment of the utility model

Fig. 8 is the sectional drawing of Fig. 6 brake lever

As shown in Figure 1, 2, establish by left and right half housing 2,2 ' and to form shell body 1 with two bolts, 11 spiral shells, one be located at rotating disk 4 in the housing 1, volute spring 5 that a volume is located at rotating disk 4 inside, flexible chi tool 6 that a volume is located at the rotating disk outer ring, and one can for rotating disk be pivoted and two ends with stove bolt 12 be fixed on central shaft 7 in the housing, with one be located at the brake block 8 of housing below outlet, the tape measure 10 that fixedly brake gear 9 common combinations of being made up of pushing block 91 and arc knee-piece 92 form, the aforementioned habit formula member that is all.Can make the lower end 92a of arc knee-piece 92 prop up flexible chi tool 6 and reach fixing purpose of braking down when mobile by the pushing block 91 of fixing brake gear 9 and practise formula tape measure 10, otherwise when pushing block 91 is passed up, can make arc knee-piece 92 no longer compress flexible chi tool 6 and chi tool 6 can be reclaimed automatically.

Housing 1 housing 2 surfaces on one side that are characterised in that of the present utility model are provided with a brake gear intermittently, this, brake gear was a brake lever 3 at intermittence, brake lever 3 is to be formed by connecting by a circle handle 31 and a long handle 32, or the long handle of a broad (promptly round shank diameter is identical with the long handle width), all have slit 33 around the brake lever 3, and have only the end of long handle 32 to be connected with housing 2 one.Because an end of brake lever 3 is connected on the housing 2, end is but established for living in addition, thereby when the user justifies handle 31 with finger presses, promptly can make brake lever produce an elastic reaction, that is circle handle 1 can be being embedded in by depressing in the housing 2 of pointing, and can contact with the side wall surface of rotating disk 4, if this rotating disk 4 contacts with 1 generation of circle handle when rotated then can reach locking function because of friction.In addition, this brake lever 3 also can be implemented at another side housing 2 except can being located at half of housing 2.

As shown in Figure 3, be the sectional drawing of device at intermittence when not moving of the utility model tape measure, under the state that announcement brake lever 3 does not go to push the user among the figure, do not contact, so also just do not have locking function with rotating disk 4 generations.

As shown in Figure 4, the sectional drawing of device at intermittence after action for the utility model tape measure, disclose among the figure brake lever 3 the user to be embedded in a little in the slit 33 of housing 2 under the finger presses, and round handle 31 is contacted with edge generation outside the rotating disk 4, in order to strengthen locking function, cementation a slice plasticity is ended sheet 36 again in the bottom surface of justifying handle 31, makes brake function better.When finger unclasped, rotating disk 4 was under the effect of volute spring 5 and furl automatically, together with flexible chi tool 6 also together backrush; When the user justifies handle 31 with finger intermittent mode spinning, will make flexible chi tool 6 one stop receipts, and then reach the intermittently purpose of brake.This mode can avoid flexible chi tool 6 to reclaim fast to prevent the incised wound finger and to avoid clashing into the chi tool producing excessive impact power.

As shown in Figure 5, be the stereographic map of another embodiment of the present utility model, Ben Tu and Fig. 1 relatively are not difficult to find that brake lever 3 positions on the half of housing of two figure 2 surfaces are slightly different, long handle 32 as the brake lever 3 of Fig. 1 is to be vertical setting, but is that level is to setting as the long handle 32 of Fig. 5 brake lever 3.In like manner, long handle 32 also can design with rake angle, and is shown in Figure 6, and brake lever 3 can also be implemented at surface of shell with tiltedly protruding.

As shown in Figure 7, stereographic map for another embodiment of the present utility model, can find among the figure that intermittently the brake lever 3 of brake gear is a circle handle 31, but there is not long handle, and have slit 33 all around at circle handle 31, the elastic strip 34 that is provided with several equal angles between circle handle 31 and the housing 2 is connected, so can produce suitable elastic reaction when finger presses is justified handle 31.

As shown in Figure 8, be the sectional drawing of Fig. 6 brake lever, and be the arrested state after circle handle 31 is pressed, after plasticity is ended sheet 36 and rotating disk 4 generation frictions is contacted, can reach locking function.

In addition, the round handle 31 of brake lever 3 is round handles that a circular arc protrudes as shown in Figure 1, also can establish a round recessed 311 in the central authorities that justify handle, and this design can make the sense of touch of brake lever 3 better, to allow the user not need to observe and can push brake lever with doigte with eyes.

Claims

1, a kind of brake structure at intermittence of tape measure, comprise: one by a left side, right half housing is established the housing of composition to count the bolt spiral shell, one is located at the rotating disk in the housing, one volume is located at the volute spring of rotating disk inside, one volume is located at the flexible chi tool of rotating disk outer ring, and one can be pivoted and two ends are fixed on central shaft in the housing with stove bolt for rotating disk, with a brake block that is located at housing below outlet, one fixed brake gear common combination forms, it is characterized in that: on the surface of housing, be provided with a brake lever, brake lever all around be the slit, but be connected with the housing one with an end at least, and this brake lever must cooperate symmetrically with the outer edge surface of rotating disk.

2, the brake structure at intermittence of a kind of tape measure according to claim 1, it is characterized in that: this brake lever can be located at arbitrary of housing two sides.

3, the brake structure at intermittence of a kind of tape measure according to claim 1 is characterized in that: brake lever is to be formed by connecting by circle handle and a long handle, and brake lever is the slit all around, and has only the end of long handle to be connected with the housing one.

4, the brake structure at intermittence of a kind of tape measure according to claim 1 is characterized in that: brake lever is a wide long handle, and the periphery of long handle has the slit, and end is connected with the housing one.

5, the brake structure at intermittence of a kind of tape measure according to claim 1, it is characterized in that: the long handle of brake lever can vertically be provided with.

6, according to the brake structure at intermittence of claim 3 or 4 described a kind of tape measures, it is characterized in that: the long handle of brake lever can be horizontally disposed with.

7, according to the brake structure at intermittence of claim 3 or 4 described a kind of tape measures, it is characterized in that: but the long handle oblique angle setting of brake lever.

8, the brake structure at intermittence of a kind of tape measure according to claim 1 is characterized in that: the long handle of brake lever can be located in the hole of housing with the elastic strip of a circle handle and several equal angles settings.

9, according to the brake structure at intermittence of claim 3 or 4 or 8 described a kind of tape measures, it is characterized in that: the front end bottom surface of brake lever can be set up a plasticity and end sheet.