CN2446839Y

CN2446839Y - Improved telescopic drawbar locating device

Info

Publication number: CN2446839Y
Application number: CN 00257927
Authority: CN
Inventors: 陈世丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-18
Filing date: 2000-10-18
Publication date: 2001-09-12
Anticipated expiration: 2010-10-18

Abstract

The utility model discloses an improved and telescopic pull-rod positioning device. Compared with the telescopic pull rod in the prior art, a convex button or a steel ball is pushed by using an elastic body, and a pipe wall is easy to scrape and the telescopic smooth degree is affected when the pull rod is telescopic to move. The improvement is that the elastic body of the telescopic pipe is pivoted with a rolling wheel towards one end of a base pipe, and the inner side of the base pipe which is corresponding to the rolling wheel is provided with a plurality of positioning grooves used for embedding the rolling wheel. When the telescoping rod is pulled or is shrunk and moved in the base pipe, the rolling wheel of the telescopic pipe can be rolled along the innerhole wall of the base pipe which is scraped by the rolling wheel can be avoided, and the efficiency that a telescopic pull rod group has normal service life is achieved.

Description

Improvement type telescopic lever positioner

The utility model relates to a kind of Improvement type telescopic lever positioner, is meant especially in a kind of manufacturing field that relates to the leather trunk pull bar, makes the flexible design that start is smooth and easy, service life is good of leather trunk pull bar.

Be generally used in the telescopic lever group A (as shown in Figure 3) on the luggage case 50 at present, mainly be installed in the rear side of luggage case 50, telescopic lever group A generally vertically is fixedly arranged on the trailing flank of leather trunk 50 with two parallel relative parent tubes 30, and on two parent tubes 30, plug again a pair of can be along parent tube 30, make the telescoping tube 20 that upwards stretches or shrink, and the top of two relative telescoping tubes 20 is connected with handle 60;

By this,, can utilize the location structure of 30 of telescoping tube 20 and parent tubes on parent tube 30, control telescoping tube 20 is located on some positions when the people who uses is pulling and supporting handle 60 and adjusts telescoping tube 20 and forms when stretching;

And the location structure of prior art, as shown in Figure 4, mainly wear an embedding hole 21 in the position of the inside of telescoping tube 20 setting height, this embedding hole 21 can outwards be set by telescoping tube 20 inside for a protruding button 41, and the free end that makes this protruding button 41 is warhead shape and protrudes from the surface of telescoping tube 20, this protruding button 41 is positioned at the other end of telescoping tube 20 inside again, a then affixed elastic spring 40, the end in addition of this elastic spring 40, then elasticity abuts against on the side inwall in addition of telescoping tube 20, utilize elastic spring 40 to make the protruding button 41 normal states that protrude out towards telescoping tube 20 outer elastic of protecting with this, and parent tube 30 is with respect on the telescoping tube 20 protruding buttons 41, on the track that moves, then wear the locating slot 31 that several can embed the location for protruding button 41 free ends down;

So design, the people who uses can go up, downward modulation moves the collapsing length of telescoping tube 20, and the protruding button 41 elasticity inlay cards on the telescoping tube 20 are located on the locating slot 31 of parent tube 30, the people who is convenient to use pulls and supports leather trunk 50 walkings, when the human desires of using is adjusted the extended position of telescoping tube 20 in parent tube 30, can be with telescoping tube 20 application of force up or down, make telescoping tube 20 upwards stretch or contract downwards fall in, originally inlay card is at the protruding button 41 of parent tube 30 locating slots 31, the elastic force retraction that can be pushed and overcome elastic spring 40 reaches the purpose that telescoping tube 20 can be selected different collapsing lengths location in parent tube 30 inwalls (shown in the imaginary line of Fig. 4) with this.

In addition, also just like the design of Taiwan patent announcement No. 380390 " suitcase telescopic lever positioning control structure ", and the design of Taiwan patent announcement No. 359990 " suitcase is adjusted location structure to hand lever ", then be respectively to utilize " steel ball " to reach " several locating convex blocks " cooperation elastomer to reach the function that makes trunk draw bar reach flexible location;

Check that carefully this kind utilizes elastomeric elasticity push effect at present, reach the expansion link location structure of elasticity inlay card location, no matter be protruding button, steel ball or utilize designs such as locating convex block, they are on parent tube 30 inner formation, when mobile down, protruding button, the free end of steel ball or locating convex block, all be that madial wall with parent tube 30 forms direct friction, and present luggage case is in order to pursue the slim and graceful of weight, parent tube 30 has changed light weight into but the softer aluminium-alloy pipe of material usually, protruding button like this, frequent and the parent tube 30 internal face friction slip of steel ball or locating convex block, just cause the scratch of parent tube 30 internal faces easily, therefore serious even meeting cause parent tube 30 inwalls the burr of scratch to occur, and on causing in telescoping tube 20 parent tubes 30, flexible down interference (especially obvious with the steel ball pattern), reality has necessity of improvement.

The inventor is because previous design still has above-mentioned shortcoming, to be engaged in Related product production and marketing experience for many years, at the mode that above problem thinking improves, concentrating on studies to develop and repeatedly improve studies, and obtains a kind of telescopic lever positioner that can effectively improve existing shortcoming finally.

Therefore, main purpose of the present utility model provides a kind of flexible start that makes telescopic lever Improvement type telescopic lever positioner more smoothly.

Another purpose of the present utility model provides a kind of Improvement type telescopic lever positioner that can the scratch inside pipe wall.

A purpose more of the present utility model provides the more normal Improvement type telescopic lever of a kind of use life of product positioner.

In order to achieve the above object, the utility model proposes a kind of Improvement type telescopic lever positioner, mainly be provided with parent tube and can be inserted in the telescoping tube that the parent tube endoporus is done upper and lower telescopic moving, its improvement is:

One lateral longitudinal of this parent tube is to several fastening grooves that distribute, and telescoping tube is on the side of an end with respect to fastening groove of parent tube, then be arranged with a storage tank and and be recessed into locating slot in this storage tank, set an elastomer that can support towards fastening groove direction elasticity in the locating slot, this elastomer is pivoted with a roller towards an end of fastening groove, and makes the groove width of the diameter of this roller greater than locating slot.

Advantageously, this elastic system protrudes out a hinge portion and articulates roller, and makes this drive-connecting shaft form vertical extension with elastomeric elastic force direction.

This roller system just can be embedded at and form the location in the storage tank.

The axial system of this roller wears an embedding hole and is embedded an axle sleeve, and each axle sleeve is that wear-resisting material or metal made, but and is arranged with the axis hole that an ammunition feed gonosome end forms pivot joint on axle sleeve is axial.

This each telescoping tube is towards the end of parent tube, and it is one identical or be slightly less than the holder of parent tube endoporus to be that inlay card is installed with.

Based on above-mentioned content, the utility model can obtain following advantage: 1. the flexible start of telescopic lever is more smooth and easy.2. can the scratch inside pipe wall.3. use life of product more normal.

For can be further more detail knowledge feature of the present utility model and other purpose, existing attachedly describe in detail as the back with icon:

Fig. 1 is the perspective exploded view of the preferable enforcement attitude of the utility model.

Generalized section when Fig. 2 is the start of the preferable enforcement attitude of the utility model.

Fig. 3 is a user mode reference diagram of the present utility model.

Fig. 4 is the longitudinal profile of prior art.

Please referring to shown in Fig. 1, Fig. 2 and Fig. 3, the pull bar of pull bar group of the present utility model and present stage is identical, all be arranged on the trailing flank of luggage case or leather trunk 50 (as shown in Figure 3), two parent tubes, 30 same parallel being longitudinally set with of telescopic lever group A in leather trunk 50 trailing flanks, and the telescoping tube 20 of on two parent tubes 30, respectively planting, and the top of two telescoping tubes 20 is connected with handle 60 equally; Wherein:

One side of parent tube 30, be equipped with several fastening grooves 31 in regular turn, again at this telescoping tube 20 on the end of parent tube 30 1 ends, it is one identical or be slightly less than the holder 10 of parent tube 30 endoporus that inlay card sets firmly, form when making this holder 10 be embedded in parent tube 30 endoporus and be slidingly matched, again on the side of holder 10 with respect to parent tube 30 fastening grooves 31, then be arranged with a square type storage tank 11, and make on these holder 10 storage tank 11 bottom surfaces with respect to parent tube 30 fastening grooves 31, then recessed have the locating slot 110 that can set for an elastomer 12, be embedded at the elastomer 12 in this locating slot 110 again, be form can elasticity supports outside locating slot 110 the elastic force state;

This elastomer 12 is towards an end of storage tank 11, protrude out one and support the vertical hinge portion of direction 120 with elastomer 12 elastic force, being pivoted on this hinge portion 120 one just can be embedded at the rollers 13 of location in holder 10 storage tanks 11, and the diameter that makes roller 13 is greater than fastening groove 31;

By this, when the utility model when implementing, an end that telescoping tube 20 is had holder 10 is inserted in the parent tube 30, and utilize the holder 10 and the cunning of parent tube 30 endoporus to join, and make in parent tube 30, forming that telescoping tube 20 can be stable, following slippage, and telescoping tube 20 is when being embedded in parent tube 30 endoporus, roller 13 is subjected to the shrinkage limit of parent tube 30 endoporus walls, and make roller 13 can push elastomer 13 compression and elastic force state that normal guarantor outwards supports, and because roller 13 of the present utility model is that pivot is enclosed within on the hinge portion 120 of elastomer 12, on telescoping tube 20 is in parent tube 30, when mobile down, roller 13 forms roll displacement state (shown in the arrow of Fig. 2) with parent tube 30 endoporus walls, makes roller 13 of the present utility model can not cause the adverse consequences of parent tube 0 endoporus wall scratch with this;

And be moved downward to fastening groove 31 positions of parent tube 30 along with telescoping tube 20 when roller 13, then roller 13 has been subjected to supporting of elastomer 12 and has pushed, just can be embedded in towards the fastening groove 31 of parent tube 30, make the arc string of roller 13 about 1/3 be embedded in the fastening groove 31, use and reach control telescoping tube 20 and on the position of setting, locate.

In addition, please cooperate again referring to shown in Fig. 2, wherein the utility model can in roller 13 axially on wear an embedding hole 130 and be embedded an axle sleeve 14, wherein this axle sleeve 14 can be wear-resisting material or metal is made, and in axle sleeve 14 towards elastomer one end of 12 hinge portions 120, be concaved with an axis hole 140 that just can supply hinge portion 120 to plant and be pivoted, the setting of axle sleeve 14 by this, except the start that can make roller 13 is more smooth and easy, more can avoid roller 13 because of for a long time in hinge portion 120 on rotate and occur the phenomenon of wearing and tearing.

In sum, of the present utility model comparing with prior art pull bar positioner really can Effectively improve the existing inconvenience of prior art and shortcoming, do not see any publication, have novelty The property and creativeness, meet the application regulation of utility model patent, now file an application in accordance with the law, please give Approval.

Claims

1, a kind of Improvement type telescopic lever positioner mainly comprises parent tube and can be inserted in the telescoping tube that the parent tube endoporus is done upper and lower telescopic moving, it is characterized in that:

2, Improvement type telescopic lever positioner as claimed in claim 1, it is characterized in that: this elastic system protrudes out a hinge portion and articulates roller, and makes this drive-connecting shaft form vertical extension with elastomeric elastic force direction.

3, Improvement type telescopic lever positioner as claimed in claim 1 or 2 is characterized in that: this roller system just can be embedded at and form the location in the storage tank.

4, Improvement type telescopic lever positioner as claimed in claim 1 or 2, it is characterized in that: the axial system of this roller wears an embedding hole and is embedded an axle sleeve, each axle sleeve is that wear-resisting material or metal made, but and is arranged with the axis hole that an ammunition feed gonosome end forms pivot joint on axle sleeve is axial.

5, Improvement type telescopic lever positioner as claimed in claim 1 is characterized in that: this each telescoping tube is towards the end of parent tube, and it is one identical or be slightly less than the holder of parent tube endoporus to be that inlay card is installed with.