CN2440198Y

CN2440198Y - Rotating device for band tape

Info

Publication number: CN2440198Y
Application number: CN 00245316
Authority: CN
Inventors: 林炳煌
Original assignee: Index Measuring Tape Co Ltd
Current assignee: Index Measuring Tape Co Ltd
Priority date: 2000-08-16
Filing date: 2000-08-16
Publication date: 2001-07-25
Anticipated expiration: 2010-08-16

Abstract

The utility model relates to a rotating device for a band tape. A band rolling disc which is contained in a through hole in the center of a base casing is assembled with a sprocket disc; a high and a low engaging parts which are circularly arranged are formed on the upper end surface of the sprocket disc, and two fixing bolts which are arranged at the lower end passes through fixing holes of the band rolling disc, so that the sprocket disc can be rotated along with the band rolling disc. The utility model is additionally provided with a pivoting fastener, wherein, the lower end of the pivoting fastener is pivotally provided with a central through hole which is extended to the band rolling disc, and the upper end of the pivoting fastener is provided with a pivoting part which is pivoted with a rocking rod; the free end of the rocking rod is provided with a vertical rotating wheel, the upper end surface of a rod body of the rocking rod is provided with a fastening plate, and a containing groove is arranged at a proper position of a base shell; the rocking rod can not be rotate due to the influence of the rolling of a band, and the rotation of the rocking rod can drive the sprocket disc and the band rolling disc to roll the band.

Description

The wheelwork of tape measure

The utility model is the wheelwork of relevant a kind of tape measure, and is particularly relevant a kind of when the chi band stretches, and jack back gets and can not be subjected to the chi roll coil of strip and receive influence and rotate, and can utilize again and control jack back furling the chi band, and can effectively avoid awkward wheelwork.

The wheelwork of existing tape measure, as shown in Figure 1, this tape measure 1 has an antetheca shell 10, a rear wall shell 11, a jack back 12, a tape measure dish 13; Jack back 12 is to form one with

tape measure dish

13,13 on tape measure dish can rotate in antetheca shell 10 and rear wall shell 11, be fixed with tape measure 14 on the tape measure dish 13, when pulling tape measure 14,13 on tape measure dish rotates thereupon, and the jack back 12 that forms one with tape measure dish 13 also rotates with the pulling speed of tape measure 14, otherwise when reclaiming tape measure 14, the recovery speed of tape measure 14, also the speed speed with rotating rocker reclaims.

The existing tape measure wheelwork of this kind has following shortcoming in use:

1. when pulling out tape measure 14, jack back 12 shakes because of producing revolution with tape measure pulling speed, and jack back 12 Chang Yin block other objects when shaking, and surveying must temporarily be interrupted and slows down operating rate.

2. the existing tape measure wheelwork of this kind, when tape measure 14 was pulled out fast, jack back 12 is quick rotation thereupon also, caused the staff of portable tape measure, collided atwirl jack back 12 and damaged.

Just like above-mentioned shortcoming, the creator is the road of doing the research improvement at these shortcomings, and generation of the present utility model is arranged finally in view of existing tape measure.

Therefore, the purpose of this utility model promptly aims to provide a kind of wheelwork of tape measure, wheelwork according to this kind tape measure of the present utility model, be that jack back got and can not be subjected to the chi roll coil of strip and receive influence and rotate when the chi band was stretched, can utilize the control jack back furling the chi band again, and can effectively avoid awkward wheelwork.

An of the present utility model purpose promptly aims to provide a kind of wheelwork of tape measure, wheelwork according to this kind tape measure of the present utility model, be that central authorities in basic shell are arranged in the chi roll coil of strip closing quotation that the surface is provided with center through hole and symmetrical fixed orifice, and make the buckle teeth dish that forms one high and one low circular array bridle joint portion in the surface, utilize gim peg to pass the fixed orifice of chi roll coil of strip closing quotation and make up, and the center through hole of passing the closing quotation of the chi roll coil of strip by articulated part, and pivot joint jack back, in the time of can reaching chi roll coil of strip closing quotation rotation, jack back can not be affected and and then rotate; And, set up the snapping plate on the body of rod surface of jack back, so, when snapping into the bridle joint portion of buckle teeth dish, its snapping plate can furl the chi band easily, construct lightly and use more convenient tape measure thereby form.

Another purpose of the present utility model promptly aims to provide a kind of wheelwork of tape measure, and the wheelwork according to this kind tape measure of the present utility model can prevent tape measure when drawing fast, and jack back rotates the injury and inconvenience that causes human body thereupon rapidly.

The purpose of this utility model can reach by following measure:

A kind of wheelwork of tape measure is provided with a basic shell, and basic shell one end is established handle, and central authorities establish through hole for holding chi roll coil of strip closing quotation, and the closing quotation of the chi roll coil of strip is provided with center through hole and two symmetrical because of deciding the hole, and makes up with a buckle teeth dish; This buckle teeth dish, upper end face form the bridle joint portion of one high and one low circular array, and the lower end then is provided with two gim pegs to be inserted in the fixed orifice of chi roll coil of strip closing quotation; Other is provided with one and articulates fastener, is provided with d-axis to be pivotally arranged on the center through hole of chi roll coil of strip closing quotation in central authorities, and lower end sheathed is cap bag fixedly, and the upper end then is provided with the articulated section to articulate a jack back; The free end of jack back is provided with vertical runner, and its body of rod upper end face then is provided with the snapping plate, and, be provided with tank again in the appropriate location of basic shell, to hold its vertical runner; Reach whereby, when the rotaring wheeling sleeve of jack back is located in the tank, can be subjected to the chi roll coil of strip and receives influence and rotate; And hold level with both hands to other and put when jack back, when making the bridle joint portion bridle joint of its snapping plate and buckle teeth dish, jack back rotates and can drive buckle teeth dish and the closing quotation of the chi roll coil of strip furling the chi band, thus the unaffected rotation of jack back when reaching the chi band and stretching, and can effectively avoid the inconvenience used.

The utility model has following advantage compared to existing technology: the wheelwork of this tape measure, but jack back can be rotated easily and fast and stable tape measure is reclaimed, and when preventing to spur tape measure, allow jack back with the speed of pulling tape measure, quick rotation and the inconvenience and the trouble that cause.

As for detailed construction of the present utility model, application principle, effect and effect then please refer to the explanation that following adjoint is done, and can be understood completely.

[illustrating]

Fig. 1. be the wheelwork diagrammatic cross-section of existing tape measure.

Fig. 2. be overall perspective view of the present utility model.

Fig. 3. be the side view of Fig. 2.

Fig. 4. be longitudinal diagram of the present utility model.

Fig. 5. for of the present utility model another implemented stereographic map.

Fig. 6. be the side view of Fig. 5.

Existing tape measure shown in Figure 1, its constitute situation with and disappearance, as previously mentioned, no longer heavily cover narration herein.

The wheelwork of this kind tape measure of the present utility model, shown in Fig. 2,3,4, be to be provided with a basic shell 2, base shell one end is provided with handle 21, central authorities are provided with through hole 22 for holding chi roll coil of strip closing quotation 3, the chi roll coil of strip 3 surfaces that close are provided with center through hole 31 and two symmetrical fixed orifices 32,33, to provide and a buckle teeth dish 4 combinations; This buckle teeth dish 4, upper end face form the

bridle joint portion

51,52,53 of one high and one low circular array, and the lower end then is provided with two gim pegs 41,42 to pass the fixed orifice 32,33 of chi roll coil of strip closing quotation, and it can be rotated with chi roll coil of strip closing quotation 3; Other is provided with one and articulates fastener 6, be provided with axle 61 in the lower end to be pivotally arranged on the center through hole 31 of chi roll coil of strip closing quotation 3, its end and sheathed one is cap bag 63 fixedly, its upper end is provided with articulated section 62 to articulate jack back 7 again, the free end of jack back 7 is provided with vertical runner 71 (please join Fig. 5,6), and its body of rod upper end face then is provided with snapping plate 72, and, appropriate location at basic shell is provided with tank 23 again, for holding vertical runner 71.

Utilize above-mentioned formation, when the vertical runner 71 of an end of jack back 7 is inserted in the tank 23 of basic shell (as Fig. 2,3,4), because jack back 7 is to be the pivot joint state with articulating fastener 6, it also is to borrow axle 61 to be pivoted to the center through hole 31 of chi roll coil of strip closing quotation that face articulates fastener 6, therefore, when chi band 8 was made by force-extension to furl dish to rotate, jack back 7 can unexpectedly be subjected to pulling force and rotate; In the time of chi band 8 will being furled, as long as to placing, in the time of shown in Fig. 5,6, make its snapping plate 72 embed one of them bridle joint portion 51 of buckle teeth dish 4 in the other direction jack back 7, can borrow and rotate jack back 7 rotations, buckle teeth dish 4 and chi roll coil of strip closing quotation 3 rotations, and chi band 8 is reclaimed smoothly.Therefore, can accomplish effectively that when the chi band stretched, jack back 7 did not rotate, and guarantees user's the safety and the fairness of stretching chi band thereupon, can borrow rotation jack back 7 that chi band 8 is reclaimed smoothly again.

From as can be known above-mentioned, the wheelwork of this kind tape measure of the present utility model, it has the jack back that can overcome existing tape measure really and returns the disappearance that is caused with chi roll coil of strip withdrawal commentaries on classics, and it is not seen in public use, close regulation, propose patented claim in accordance with the law in Patent Law.

Need illustrate that the above is the preferable specific embodiment of the utility model, if according to conception of the present utility model, the change of being done, the function of its generation, when not exceeding instructions yet and illustrating contained spiritual, all should be in scope of the present utility model.

Claims

1. the wheelwork of a tape measure, it is characterized in that: be provided with a basic shell, basic shell one end is established handle, and central authorities establish through hole for holding the closing quotation of the chi roll coil of strip, and the closing quotation of the chi roll coil of strip is provided with center through hole and two symmetrical fixed orifices, and makes up with a buckle teeth dish; This buckle teeth dish upper end face forms the bridle joint portion of one high and one low circular array, and the lower end then is provided with two gim pegs to be inserted in the fixed orifice of chi roll coil of strip closing quotation; Other is provided with one and articulates fastener, is provided with d-axis to be pivotally arranged on the center through hole of chi roll coil of strip closing quotation in central authorities, and lower end sheathed is cap bag fixedly, and the upper end then is provided with the articulated section to articulate a jack back; The free end of jack back is provided with vertical runner, and its body of rod upper end face then is provided with the snapping plate, is provided with tank again at basic shell and holds its vertical runner.