CN100460802C

CN100460802C - Tapeline with unidirectional transmission mechanism

Info

Publication number: CN100460802C
Application number: CNB2007100693537A
Authority: CN
Inventors: 孙立峰
Original assignee: CHANGCHENG JINGGONG INDUSTRY Co Ltd NINGBO
Current assignee: CHANGCHENG JINGGONG INDUSTRY Co Ltd NINGBO
Priority date: 2007-06-15
Filing date: 2007-06-15
Publication date: 2009-02-11
Anticipated expiration: 2027-06-15
Also published as: CN101078612A

Abstract

The invention relates to a measuring tape with unidirectional transmission mechanism, comprising cranking handle (1), cranking seat (3) and tape core mechanism (100) for driving tape (15) draw out and roll up. The cranking handle (1) which can turn over is set on the cranking seat (3). It is characterized in that a facing (4) and linking block (5) are set between the cranking seat (3) and the tape core mechanism (100). The facing (4) is fixed on the cranking seat (3) and rotates as the cranking seat rotates. The top end of linking block (5) protrudes out of the cranking seat (3) and the bottom end which can be disassembled can be matched with embedding groove (41) of facing. Elastic part (52), which makes the linking block (5) always possess the trend of protruding the cranking seat, is set at the bottom of said linking block (5). Compared with prior technology, merits of invention are that by the disassembling connection of linking block and tape core mechanism unidirectional rotation of the cranking seat and the tape core mechanism is realized; the problem that when tape rolls up the cranking handle hurts people is avoided while rolling up is smoother; it is provide with compact total structure, simpleness, practicality, low part cost and convenient combination.

Description

A kind of tape measure with one-way driving mechanism

Technical field

The present invention relates to a kind of tape measure, relate in particular to a kind of tape measure that rolling has one-way driving mechanism that shakes.

Background technology

In the tape measure use of the long distance of existing measurement, the chi band generally shakes the volume mode and unrolls, promptly shake rocking handle, cooperate by axle sleeve and rotating shaft, drive the chi core and rotate, thus the chi tape wrapping that extraction is gone to the chi core, rocking handle and chi core rotate synchronously; rocking handle shakes a circle, then tape measure is correspondingly regained a circle.Following discloses severally shake the tape measure that the volume mode is unrolled.

China utility model patent: ZL91212457.1, a kind of " fast rewind tape measure " (publication number: CN2092740U) is disclosed, this patent comprises a shell, a pair of axle sleeve is housed on the shell, a rotating shaft is housed in the axle sleeve, be wound with tape band in the rotating shaft, it is characterized in that between rotating shaft and rocking handle, setting up the device that to regain fast after tape band is extracted out from shell, realized the purpose that tape measure is regained fast after use.

Chinese again utility model patent: ZL02268613.4, a kind of " speed change steel tape " (publication number: CN2554594Y) is disclosed, this patent by the chi shell, be installed in bearing seat on the chi shell, be installed in chi axle in the bearing seat, be fixed on chi core, an end on the chi axle and be fixed on the chi core that the other end is wound on the chi band that stretches out at last on the chi core from the opening of chi shell-side face and the rocking handle that is fixed on the chi axle is constituted, it is characterized in that between said rocking handle and the chi axle speed-increasing gear being installed also.CN2092740U is the same with patent, has solved the slow problem of quick rolling equally.Employing shake the volume mode can also be with reference to CN2651696Y, CN2396371Y.

The existing rolling tape measure that shakes, the chi tape spool is connected with rocking handle is two-way, i.e. and rocking handle and chi tape spool all rotate together when still unreeling during rolling, and have following weak point like this: at first, when unreeling, rocking handle may be got to user's health, even hurts sb.'s feelings; Secondly, when unreeling, the chi band is extracted out and is subjected to resistance ratios bigger, and influence unreels speed; At last, when unreeling, may reset in the rocking handle rotation process, the chi core is stopped operating, oppositely draw the chi band slide calliper rule phenomenon may occur, damage the chi band, and influence job schedule.

For this reason, China utility model patent: ZL02207192.X, a kind of " one-way driving mechanism of tape measure " (publication number: CN2581938Y) is disclosed, handle fuses by bearing pin and inner rotary table in this patent, inner rotary table and outer rotary table are installed in the supported hole of tape measure housing, can rotate therein, it is characterized in that: outer rotary table is provided with the rotating disk engaging piece, and handle is provided with engagement portion.By the location status of change handle, thereby realize the engagement between parts and remove engagement that when unreeling, handle just is independent of chi band rotating mechanism, thereby has avoided hurting sb.'s feelings like this.

Again with reference to Chinese utility model patent: ZL200420066462.5, a kind of " tape measure that has the clutch crank " (publication number: CN2722193Y) is disclosed, comprise chi frame, chi band, chi belt wheel, terminal pad, rocking arm and handle, the axle of chi belt wheel is rotatably connected in the chi frame, the chi frame that one end of chi belt shaft passes a side is hinged by terminal pad and rocking arm one end, and the other end of this rocking arm connects handle; Chi band one end connects and twists in the side face of chi belt wheel; Be provided with the spacing hole corresponding with described handle on described chi frame, it is characterized in that: the axle of described terminal pad and chi belt wheel is rotationally connected, and is provided with clutch between the two at them, and further, this clutch coupling comprises rotating disk, clutch pit and terminal pad.This patent adopts another kind of clutch structure to solve the common problem that produces when shaking the rolling tape measure and unreeling.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of tape measure with one-way driving mechanism that has clutch in addition at above-mentioned prior art present situation, mating reaction by liner, clutch block is connected with chi core mechanism dismountable type, the one-directional rotation setting of realize shaking the hand seat and chi core mechanism.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: this has the tape measure of one-way driving mechanism, comprise crank handle, shake the hand seat and be used to drive that the chi band is extracted out and the chi core mechanism of rolling, crank handle is turning to be arranged on the seat of shaking the hand, it is characterized in that described shaking the hand is provided with a liner and clutch block between seat and the chi core mechanism, aforementioned liner is fixed in the seat of shaking the hand and goes up also and can rotate with the seat of shaking the hand, the seat of shaking the hand is stretched out on aforementioned clutch block top, the bottom is connected cooperation with the caulking groove detached type of liner, described clutch block bottom is provided with the elastic component that clutch block is stretched out shake the hand a trend, the crank handle after the upset and the top of clutch block offset and the bottom of clutch block are embedded in the caulking groove of liner, the bottom of clutch block is connected with the chi core mechanism simultaneously, and can rotate with the chi core mechanism.

As preferably, described chi core mechanism comprises with the clutch block dismountable type and is connected the lid that is connected, the Connection Block of shaking the hand, center of top is provided with the core dish of a gear, has the toothed disc of internal tooth and the driving planet wheel that Connection Block rotates of shaking the hand, connection cover has internal tooth, accordingly, described clutch block has the external tooth that cooperates with connection cover internal tooth toe joint, connection cover is fixedlyed connected with the Connection Block of shaking the hand, the core dish is positioned at the Connection Block below of shaking the hand, planet wheel be located at be on the joint pin of the Connection Block bottom of shaking the hand planetary be arranged in the toothed disc and with the core dish on gearing mesh, planet wheel cooperates with toothed disc internal tooth toe joint again simultaneously.Certainly the chi core can also adopt structure common in the prior art to substitute.

The described seat of shaking the hand can be fixed on the core dish surely by packing ring and screw.

Described connection cover can be solidly connected by embossed card with the Connection Block of shaking the hand.Also can adopt combination common in other prior aries.

The described seat of shaking the hand is provided with groove, and described crank handle can and be oppressed a reed and be located in the described groove by a pin, and reed can guarantee crank handle rate of tension in the switching process of the seat of shaking the hand, and makes crank handle be unlikely to loosening.

Described elastic component can be stage clip or spring.

Compared with prior art, the invention has the advantages that: be connected by the dismountable type of clutch block with the chi core mechanism, realization the shake the hand seat and the one-directional rotation setting of chi core mechanism, the problem that crank handle is hurted sb.'s feelings when having avoided tape measure to unreel unreels simultaneously and seems more free and relaxed; The overall construction design compactness, simple and practical, parts are with low cost, and are easy to assembly.

Description of drawings

Fig. 1 decomposes the assembling synoptic diagram for embodiment.

Fig. 2 is that the assembling synoptic diagram is decomposed at another visual angle of embodiment.

Fig. 3 is user mode figure when unreeling.

User mode figure when Fig. 4 is rolling.

Fig. 5 is the cut-open view of Fig. 3 along A-A direction.

Fig. 6 is the cut-open view of Fig. 4 along B-B direction.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Embodiment, with reference to figure 1 and Fig. 2,

Tape measure in the present embodiment comprises chi shell 13, crank handle 1, the seat 3 and be used to drive that chi band 15 is extracted out and the chi core mechanism 100 of rolling of shaking the hand, and chi shell 13 is provided with top 12 and handle 11.

Crank handle 1 is turning to be arranged on the seat 3 of shaking the hand, and the seat 3 of shaking the hand is provided with groove 31, and crank handle 1 is by a pin 22 and oppress a reed 2 and be located in this groove 31.

Shake the hand seat 3 belows be provided with a liner 4 and can automatically reset clutch block 5, liner 4 is fixed in the seat last 3 of shaking the hand by screw fit and also can rotates with the seat 3 of shaking the hand, clutch block 5 tops are stretched out the seat 3 of shaking the hand and also can be offseted with the crank handle 1 after the upset, clutch block 5 bottoms are arranged in the T-shape caulking groove 41 of liner and are connected cooperation with chi core mechanism 100 detached types, clutch block 5 automatically reset by in the caulking groove 41 and the elastic component 52 that is positioned at clutch block 5 bottoms realize that back-moving spring 52 can make clutch block 5 relative caulking grooves 41 vertical direction reset.

Chi core mechanism 100 comprises again that being connected with clutch block 5 dismountable types is connected and covers 6, the Connection Block 7 of shaking the hand, core dish 9, have the toothed disc 10 of internal tooth and drive the planet wheel 8 that the Connection Block 7 of shaking the hand rotates.

Connection cover 6 has internal tooth, accordingly, clutch block 5 has the external tooth 51 that cooperates with connection cover 6 internal tooth toe joints, connection cover 6 is solidly connected by embossed card with the Connection Block 7 of shaking the hand, particularly, connection cover 6 is provided with a plurality of bayonet sockets 61, and the Connection Block 7 of shaking the hand simultaneously is provided with corresponding a plurality of protruding fixture block 71, and bayonet socket 61 and fixture block 71 embossed cards are solidly connected.

Core dish 9 center of top are provided with a gear 91, and core dish 9 is positioned at Connection Block 7 belows of shaking the hand, and the seat 3 of shaking the hand is fixed on the core dish 9 surely by packing ring 17 and screw 16.

Planet wheel 8 have be on four four joint pins 72 all being located at Connection Block 7 bottoms of shaking the hand planetary be arranged in the toothed disc 10 and with core dish 9 on gear 91 engagements, planet wheel 8 cooperates with toothed disc 10 internal tooth toe joints again simultaneously, and toothed disc 10 is fixed on the chi shell 13.

Principle of work:

As Fig. 3 and shown in Figure 5, when initial position, during rolling, crank handle 1 presses down in the effect of reed 2 and does clutch block 5, and overcome the spring force of elastic component 52, make the groove 41 of the bottom embedding liner of clutch block 5, the external tooth 51 of clutch block 5 meshes with the internal tooth of the connection cover 6 of shaking the hand simultaneously.When shaking crank handle 1, the drive seat 3 of shaking the hand rotates, the seat 3 of shaking the hand drives clutch block 5, connection cover 6 is engagements with clutch block 5 owing to shake the hand, liner 4 so shake the hand on the seat 3 drives the connection cover 6 of shaking the hand, the Connection Block 7 of shaking the hand rotates, the Connection Block 7 of shaking the hand again drives planet wheel 8, core dish 9 rotates, and regains thereby drive chi band 15.Elastic component 52 in the present embodiment adopts spring, can certainly adopt stage clip.

As Fig. 4 and shown in Figure 6, when unreeling, plate plays crank handle 1 and makes 180 ° of its upsets, makes upwards jack-up of clutch block 5 under the effect of elastic component 52, makes the groove 41 of the bottom disengaging liner of clutch block 5, and the external tooth 51 of clutch block 5 separates with the internal tooth of the connection cover 6 of shaking the hand simultaneously.Drive core dish 9 and rotate when chi band 15 is pulled out, core dish 9 drives planet wheel 8, and planet wheel 8 drives the Connection Block 7 of shaking the hand and realizes interlock with the connection cover 6 of shaking the hand.Connection cover 6 is separated states with clutch block 5 owing to shake the hand, so the seat 15 and shake the hand and 21 can and then not rotate of shaking the hand.

Claims

1. tape measure with one-way driving mechanism, comprise crank handle (1), shake the hand seat (3) and be used to drive the chi core mechanism (100) of chi band (15) extraction and rolling, crank handle (1) is turning to be arranged on the seat (3) of shaking the hand, it is characterized in that described shaking the hand is provided with a liner (4) and clutch block (5) between seat (3) and the chi core mechanism (100), aforementioned liner (4) is fixed in the seat of shaking the hand, and upward (3) also can be with seat (3) rotation of shaking the hand, the seat (3) of shaking the hand is stretched out on aforementioned clutch block (5) top, the bottom is connected cooperation with caulking groove (41) detached type of liner, described clutch block (5) bottom is provided with and makes clutch block (5) stretch out the elastic component (52) of a trend of shaking the hand all the time, the top of crank handle after the upset (1) and clutch block (5) offsets and the bottom of clutch block (5) is embedded in the caulking groove (41) of liner, the bottom of clutch block (5) is connected with chi core mechanism (100) simultaneously, and can rotate with chi core mechanism (100).

2. the tape measure with one-way driving mechanism according to claim 1, it is characterized in that described chi core mechanism (100) comprises with clutch block (5) dismountable type is connected the lid (6) that is connected, the Connection Block (7) of shaking the hand, center of top is provided with the core dish (9) of a gear (91), have the toothed disc (10) of internal tooth and drive the planet wheel (8) that the Connection Block (7) of shaking the hand rotates, connection cover (6) has internal tooth, accordingly, described clutch block (5) has the external tooth (51) that cooperates with connection cover (6) internal tooth toe joint, connection cover (6) is fixedlyed connected with the Connection Block of shaking the hand (7), core dish (9) is positioned at the Connection Block of shaking the hand (7) below, planet wheel (8) be located at be on the joint pin (72) of the Connection Block of shaking the hand (7) bottom planetary be arranged in the toothed disc (10) and with core dish (9) on gear (91) engagement, planet wheel (8) cooperates with toothed disc (10) internal tooth toe joint again simultaneously.

3. the tape measure with one-way driving mechanism according to claim 2 is characterized in that the described seat (3) of shaking the hand is fixed on the core dish (9) surely by packing ring (17) and screw (16).

4. the tape measure with one-way driving mechanism according to claim 2 is characterized in that the described connection cover (6) and the Connection Block (7) of shaking the hand are solidly connected by embossed card.

5. the tape measure with one-way driving mechanism according to claim 1 is characterized in that the described seat (3) of shaking the hand is provided with groove (31), and described crank handle (1) is by a pin (22) and oppress a reed (2) and be located in the described groove (31).

6. the tape measure with one-way driving mechanism according to claim 1 is characterized in that described elastic component (52) is stage clip or spring.