CN201521550U

CN201521550U - Rotating shaft structure for eliminating abnormal sounds

Info

Publication number: CN201521550U
Application number: CN2009201778700U
Authority: CN
Inventors: 郭明义; 洪宏明; 秦佳正; 赖南海
Original assignee: Jarllytec Co Ltd
Current assignee: Jarllytec Co Ltd
Priority date: 2009-09-11
Filing date: 2009-09-11
Publication date: 2010-07-07
Anticipated expiration: 2019-09-11

Abstract

The utility model provides a rotating shaft structure for eliminating abnormal sounds. A buffer part is arranged between a movable cam sleeved on the mandrel and an elastic element; the buffer part adopts an elastomer; and when the rotating shaft is assembled and locked, the buffer part can deform to force the mandrel to fill in the gap between the shaft hole of the movable cam and the mandrel, thereby playing the buffering and anti-vibration roles. The rotating shaft structure can slows down the automatic falling rate of the movable cam, and avoid the sounds generated by the collision of the movable cam and the mandrel caused by excessive instant falling force, thereby effectively eliminating abnormal sounds.

Description

Eliminate the turning shaft structure of different sound

Technical field

The utility model relates to the turning shaft structure of eliminating different sound, relate in particular to a kind of cushion fall locking automatically speed to eliminate the turning shaft structure of different sound, be used for cover-lifting type electronic device.

Background technique

Generally being used for the rotating shaft of drawing-pushing type electronic product such as the rotating shaft of notebook computer can make screen open or cover with respect to body.Known turning shaft structure can counterrotating cam reaches screen and body by two usually can fall the function of locking when closed automatically.

Announce as the application's the Taiwan that the claimant had as described in M296586 number the utility model patent " turning shaft structure of tool automatic blocking ", the axially extended jack-post of axis bar is passed successively the heart hole of body frame body vertical frame face, the sheet friction plate, the sheet conjunction that is connected with the frame face, the cam member of forming by fixed block and slider and at least one elastomer, and the free-ended adapter section of this jack-post is combined with an end sealing, so as to forming axial packing, and outside the approximal surface of fixed block and slider, inner ring is provided with at least one wedge-shaped blocks and at least one wedge slot, both relative bondings relatively alternately.When axis bar rotates, the wedge slot inclined-plane of slider is moved on the wedge-shaped blocks inclined-plane, thus the axial compression elastomer, and the slider contact plane can be rotated along each wedge-shaped blocks of fixed block.In addition, when counter-rotating, each wedge slot of this slider moves to each wedge-shaped blocks of fixed block, then by elastomeric extensional process, each wedge slot is buckled in each wedge-shaped blocks, thereby forms the automatic blocking of butt joint.

Above-mentioned slider is to be sheathed on the axis bar with the perforation identical with this jack-post section, with axis bar relative fixed part rotation simultaneously.Because the problem of manufacturing tolerances, the perforation of slider and jack-post can't closely cooperate, can produce the gap, therefore in the screen closure and the inclined-plane of slider wedge slot when slipping into the inclined-plane of fixed block wedge-shaped blocks, because of making slider moment landing strength excessive perforation moment that makes jack-post and slider bump of beating, elastomeric restoring force produces different sound, and the abutted surface of slider and fixed block also can clash into and send different sound, and promptly hard material collides, knocks, pats the sound.If the perforation and the jack-post of slider are interference fit, can avoid producing different sound, but can produce the problem of idle stroke, and be difficult for assembling.

Therefore, the utility model promptly is to solve the problem that can produce different sound when above-mentioned rotating shaft falls locking automatically.

The model utility content

Therefore, main purpose of the present utility model provides a kind of turning shaft structure of eliminating different sound, it establishes a shock absorber between movable cam and elastic element, this shock absorber material is a polymer, produce the effect of buffering and shock preventing by shock absorber, to slow down the speed that movable cam falls automatically, avoid moment landing strength excessive, and eliminate between movable cam and the axle effectively and between movable cam and the stationary cam because of collision, knock the different sound that produces.

Another purpose of the present utility model is to provide a kind of turning shaft structure of eliminating different sound, cushions by shock absorber and eliminates different sound, makes movable cam and axle can be loose fit, with ease of assembly.

A purpose more of the present utility model is to provide a kind of turning shaft structure of eliminating different sound, is located in the recess of shell fragment by shock absorber, shock absorber is not exposed, and do not influence the outward appearance and the length of rotating shaft integral body.

For achieving the above object, the technological means of being taked according to the different sound turning shaft structure of elimination of the present utility model comprises: pin joint seat is provided with pivoted hole; Axle, be arranged in the pivoted hole with non-circular restriction axostylus axostyle, be arranged with stationary cam, movable cam and elastic element on this restriction axostylus axostyle in regular turn and be provided with the packing element in end, be provided with the shock absorber that material is a polymer between this movable cam and this elastic element, the surface of contact of this stationary cam and movable cam is provided with at least one pair of can chimeric mutually positioning groove and locating bump.

This shock absorber material is different from the metal material of movable cam and elastic element, and shock absorber can be elastomer, therefore after the rotating shaft assembling, shock absorber is out of shape and urgent axle because of the locking of packing element, and shock absorber is partly inserted the slit between movable cam and axle, thereby can avoid movable cam and axle bump.Screen closure when electronic equipment, when axle drive movable cam falls locking automatically toward back rotation desire embedding stationary cam, because shock absorber packing axle and partial buffer spare are inserted the slit between movable cam and axle, so movable cam and axle are the drive fit state, add that shock absorber has elasticity, frictional force is bigger, therefore shock absorber promptly produces the bumper and absorbing shock effect, can slow down the speed that elastic element rebounds, and then slow down the speed that movable cam falls automatically, avoid movable cam and axle bump being sounded because of moment landing strength is excessive, also can avoid movable cam and stationary cam bump, with the different sound of effective elimination.

In addition, the rubber-like shock absorber also can produce the effect of oil sealing, after the slit of filling up between axle and movable cam is out of shape in shock absorber locking, lubricant oil in movable cam and the stationary cam oil storage hole promptly can not flow into the slit again to outflow, can avoid lubricant oil to contact vaporing away and reduce lubrication effect, and be increased the rotating shaft life-span with air.

For further understanding feature of the present utility model, technological means and the concrete function of being reached, purpose, enumerate specific embodiment and be described with reference to the accompanying drawings as follows at this.

Description of drawings

Fig. 1 is an assembling stereogram of the present utility model.

Fig. 2 is a parts explosion of the present utility model.

Fig. 3 is the generalized section that part of the present utility model separates.

Fig. 4 is an A-A generalized section of the present utility model.

Fig. 5 is the enlarged diagram of the utility model movable cam.

Fig. 6 is second embodiment of the utility model movable cam.

Fig. 7 is the 3rd embodiment of the utility model movable cam.

Fig. 8 is the 4th embodiment of the utility model movable cam.

Fig. 9 is the utility model the 5th embodiment's a three-dimensional exploded view.

Figure 10 is the utility model the 5th embodiment's a plane assembling schematic representation.

Figure 11 is the utility model the 5th embodiment's a generalized section.

Figure 12 is the 6th embodiment of the present utility model.

Figure 13 is the 7th embodiment of the present utility model.

Figure 14 is the 8th embodiment of the present utility model.

Description of reference numerals

1, pin joint seat; 10, fixing part; 11, frame plate; 12, pivoted hole; 13, embedding hole; 14, block; 2, axle; 20, restriction axostylus axostyle; 201, plane; 21, lip part; 22, fixed block; 3, stationary cam; 31, positioning groove; 310, inclined-plane; 32, projection; 33, axis hole; 4, movable cam; 41, locating bump; 410, inclined-plane; 42, groove; 43, axis hole; 44, spacing protuberance; 5, rubber shock absorber; 6, elastic element; 60, shell fragment; 601, protuberance; 602, recess; 603, perforation; 7, packing element; 8, pad; 80, ring flange; 9, stop tab.

Embodiment

See also Fig. 1 to Fig. 4, it is generalized section and A-A generalized section that the utility model first embodiment's three-dimensional assembly diagram, parts explosion, part separates.The different sound turning shaft structure of elimination of the present utility model comprises pin joint seat 1, and it is provided with fixing part 10, is used for rotating shaft is fixed in the body of cover-lifting type electronic device.Pin joint seat 1 has upright frame plate 11, and frame plate 11 is provided with circular pivoted hole 12 and embedding hole 13.Axle 2 is arranged in this pivoted hole 12 with non-circular restriction axostylus axostyle 20, one end of this restriction axostylus axostyle 20 is provided with lip part 21, the other end build-in of lip part 21 is on the fixed block 22 with fixed hole, in order to rotating shaft is fixed on the screen of cover-lifting type electronic device, thereby it is fashionable to lift at screen, and axle 2 is rotated in the pivoted hole 12 of pin joint seat 1.The restriction axostylus axostyle 20 of axle 2 is provided with two relative planes 201, thereby makes these restriction axostylus axostyle 20 sections be non-circular.

Be arranged with stationary cam 3, movable cam 4, elastic element 6 on the restriction axostylus axostyle 20 in regular turn and be provided with packing element 7 endways, between this movable cam 4 and elastic element 6, be arranged with shock absorber 5.Stationary cam 3 is provided with a plurality of positioning grooves 31 and locating bump 41 that can be chimeric mutually with the surface of contact of movable cam 4, and positioning groove 31 respectively forms inclined-plane 310,410 with the two ends of locating bump 41.The opposite side of stationary cam 3 is provided with projection 32, and this projection 32 is embedded in the embedding hole 13 of pin joint seat 1.The another side of movable cam 4 and shock absorber 5 join, and its surface of contact is provided with groove 42, and these shock absorber 5 parts are installed with and are positioned in the groove 42.Stationary cam 3 is sheathed on the restriction axostylus axostyle 20 with circular axis hole 33, and movable cam 4 is sheathed on the restriction axostylus axostyle 20 with the axis hole 43 identical with restriction axostylus axostyle 20 sections.The surface of contact of stationary cam 3 and movable cam 4 also is provided with oil storage hole, with ccontaining lubricant oil.

These shock absorber 5 materials are polymer, are different from the metal material of movable cam 4 and elastic element 6, can increase its frictional force.A preferred implementation of shock absorber 5 is rubber-like rubber, silica gel ... on elastomer.In the present embodiment, shock absorber 5 is O type ring-type, rubber-like rubber for being sheathed on the O type ring on the axle, and it has the effect of sound-absorbing, shock-absorbing, buffering.This shock absorber 5 also can be rubber sheet gasket, and sleeve joint hole is offered in the centre, to be sheathed on axle 2.

Elastic element 6 is a plurality of dish-shaped shell fragments 60, and a side of shell fragment 60 is a protuberance 601, and opposite side is recess 602.Each is sheathed on this restriction axostylus axostyle 20 with the perforation 603 identical with limiting axostylus axostyle 20 sections of a shape and with the positive and negative setting that is staggered those shell fragments 60.Shell fragment 60 in abutting connection with shock absorber 5 is to join with recess 602 and shock absorber 5, shock absorber 5 is placed in the recess 602 of shell fragment 60, as shown in Figure 3 and Figure 4, shell fragment 60 is covered the part of shock absorber 5, thus, shock absorber 5 is arranged in the recess 602 of the groove 42 of movable cam 4 and shell fragment 60, and does not influence the outward appearance and the length of rotating shaft integral body.

Be provided with pad 8 between elastic element 6 and the packing element 7.This packing element 7 can be anti-loose nut, and restriction axostylus axostyle 20 ends are provided with thread section, and nut can be screwed together on the axle 2.

In addition, also be arranged with pad 8 between the flange 21 of the frame plate 11 of this pin joint seat 1 and axle 2.And a side of frame plate 11 is provided with block 14, and fan-shaped stop tab 9 is located at the side of frame plate 11, and can transfer block together in block 14 with axle 2, rotates the angle of opening with the restriction screen.

See also Fig. 5, it is the enlarged diagram of movable cam, and the groove 42 of movable cam 4 is located at around the axis hole 43, and groove 42 shapes are identical with axis hole 43 shapes.

See also Fig. 6, second embodiment of its expression movable cam, the groove 42 of this movable cam 4 is rounded.

See also Fig. 7, the 3rd embodiment of its expression movable cam, the groove 42 of this movable cam 4 is located at the both sides of axis hole 43.

See also Fig. 8, the 4th embodiment of its expression movable cam, the groove 42 of this movable cam 4 is located at the surrounding of axis hole 43, is the semicircle arcuation.

By said structure, after the rotating shaft assembling, shock absorber 5 is out of shape and urgent axle 2 because of the locking of packing element 7, and partly inserts the slit of 2 of movable cam 4 axis holes 43 and axles.When the screen closure, axle 2 drives movable cam 4 and embeds stationary cam 3 closures toward the back rotation desire, and the inclined-plane 410 of the locating bump 41 of movable cam 4 rotates and slips into the inclined-plane 310 of stationary cam 3 positioning grooves 31 and when falling closure automatically, because shock absorber 5 packing axles 2 and part rubber shock absorber 5 are inserted the slit of 2 of movable cam 4 axis holes 43 and axles, so movable cam 4 is drive fit with axle 2, therefore movable cam 4 moves axially the speed that falls automatically and can slow down, add that shock absorber 5 has elasticity and frictional force is bigger, therefore shock absorber 5 and produce the buffering and shock preventing effect, can slow down the speed that elastic element 6 rebounds, and then slow down the speed that movable cam 4 falls automatically, avoid movable cam 4 and axle 2 bumps being spoken because of moment landing strength is excessive, also can avoid movable cam 4 and stationary cam 3 to pat bump, can effectively eliminate different sound whereby.

In addition, cushion the different sound of elimination by shock absorber 5, movable cam 4 can be adopted the loose fit mode with axle 2, and is easier to assembling.

Moreover, rubber shock absorber 5 also can produce the effect of oil sealing, because known fixed cam 3 and lubricant oil in movable cam 4 oil storage holes can flow out in the slit of movable cam 4 and axle 2 again to outflow, and increased the chance that lubricant oil contacts with air, easily cause lubricant oil to vapor away and reduce lubrication effect.Therefore, fill up the slit of 43 of axle 2 and movable cam 4 axis holes after the 5 locking distortion of rubber shock absorber, the lubricant oil in movable cam 4 oil storage holes promptly can not flow into the slit again to outflow, can avoid lubricant oil to vapor away the reduction lubrication effect, to prolong the rotating shaft life-span.

In addition, the groove 42 of movable cam 4 also can change and is made as protuberance, with restriction shock absorber 5 to internal strain extruding axle 2.Please again referring to Fig. 9 to Figure 11, it represents the 5th embodiment of the present utility model, movable cam 4 is provided with two spacing protuberances 44 that are oppositely arranged with the one side that shock absorber 5 joins, spacing protuberance 44 is located at around the axis hole 43, apart from axis hole 43 1 segment distances, spacing protuberance 44 inboard formation are circular-arc, and the height that spacing protuberance 44 is given prominence to is less than shock absorber 5, shock absorber 5 is mounted on the inboard of spacing protuberance 44, as shown in figure 10.After shell fragment 60 assemblings, compress shock absorber 5 by 7 lockings of packing element, because the periphery that spacing protuberance 44 has limited shock absorber 5, shock absorber 5 is promptly toward interior extrusion-deformation, and urgent axle 2, and insert the gap of axle 2 and movable cam 4 axis holes 43, the speed that falls automatically with buffering movable cam 4 whereby, and reach the effect of eliminating different sound.

See also Figure 12, it represents the 6th embodiment of the present utility model, and the shell fragment 60 that is mounted on movable cam 4 sides also can change pad 8 into, by rotating shaft locking back pad 8 compression shock absorbers 5, make shock absorber 5 toward interior extrusion-deformation, also can reach the effect that above-mentioned buffering is eliminated different sound.

See also Figure 13, it represents the 7th embodiment of the present utility model, pad 8 as shown in figure 12, and also can be shaped has ring flange 80, so that coat shock absorber 5 fully after assembling locking, avoids shock absorber 5 to expose.

See also Figure 14, it represents the 8th embodiment of the present utility model, in the spacing protuberance 44 as shown in figure 10, its inboard shape also can change the parallel or approximate axis hole 43 that is parallel to into, after shock absorber 5 is inserted in axle 2, inner side limiting-position by spacing protuberance 44, shock absorber 5 promptly is deformed into approximate ellipsoidal, and after 7 lockings of packing element, shock absorber 5 promptly is compressed the plane 201 of urgent axle 2, and insert gap between axle 2 planes 201 and axis hole 43 planes, and reach the effect that buffering is eliminated different sound.

Though the utility model has disclosed preferred specific embodiment for achieving the above object, but these embodiments want to limit structure characteristics of the present utility model, any those of ordinary skill of related domain should be known, under technical spirit of the present utility model, any variation of expecting easily or revise and all to be feasible and all to be contained by the application's claim.

Claims

1. a turning shaft structure of eliminating different sound is characterized in that, comprises:

Pin joint seat is provided with pivoted hole;

Axle, be arranged in this pivoted hole with non-circular restriction axostylus axostyle, on this restriction axostylus axostyle, be arranged with stationary cam, movable cam and elastic element successively and be provided with the packing element endways, be provided with the shock absorber that material is a polymer between this movable cam and this elastic element, the surface of contact of this stationary cam and movable cam is provided with at least one pair of can chimeric mutually positioning groove and locating bump.

2. the turning shaft structure of the different sound of elimination as claimed in claim 1 is characterized in that, this shock absorber is an elastomer.

3. the turning shaft structure of the different sound of elimination as claimed in claim 2 is characterized in that, this shock absorber is the rubber material.

4. the turning shaft structure of the different sound of elimination as claimed in claim 1 is characterized in that, this shock absorber is an O type ring.

5. the turning shaft structure of the different sound of elimination as claimed in claim 1 is characterized in that, this shock absorber is the pad with sleeve joint hole.

6. the turning shaft structure of the different sound of elimination as claimed in claim 1, it is characterized in that, this movable cam is located at this restriction axostylus axostyle with the shape shaft hole sleeve identical with this restriction axostylus axostyle section, and this movable cam is provided with groove with the one side that this shock absorber contacts, and this shock absorber partly is located in this groove.

7. the turning shaft structure of the different sound of elimination as claimed in claim 6 is characterized in that, this groove is located at around this axis hole, and is identical with this axis hole shape.

8. the turning shaft structure of the different sound of elimination as claimed in claim 6 is characterized in that this groove is rounded.

9. the turning shaft structure of the different sound of elimination as claimed in claim 6 is characterized in that this groove is located at the periphery of this axis hole, is the semicircle arcuation.

10. the turning shaft structure of the different sound of elimination as claimed in claim 6 is characterized in that this groove is located at the both sides of axis hole.

11. the turning shaft structure of the different sound of elimination as claimed in claim 1 is characterized in that, this elastic element is a plurality of dish-shaped shell fragments, one side of those shell fragments forms protuberance, opposite side is a recess, and joins with recess and shock absorber in abutting connection with the shell fragment of this shock absorber, and this shock absorber is located in this recess.

12. the turning shaft structure of the different sound of elimination as claimed in claim 1, it is characterized in that, this movable cam is located at this restriction axostylus axostyle with the shape shaft hole sleeve identical with this restriction axostylus axostyle section, the one side that this movable cam contacts with this shock absorber is provided with spacing protuberance, this spacing protuberance is located at around the axis hole, apart from axis hole one segment distance, this shock absorber is arranged at the inboard of this spacing protuberance.

13. the turning shaft structure of the different sound of elimination as claimed in claim 12 is characterized in that, the height that this spacing protuberance is given prominence to is less than this shock absorber.

14. the turning shaft structure of the different sound of elimination as claimed in claim 12 is characterized in that, this spacing protuberance is provided with in two relative modes, and spacing protuberance inboard is circular-arc.

15. the turning shaft structure of the different sound of elimination as claimed in claim 12, it is characterized in that, the axis hole of this axle and movable cam respectively is formed with two planes, and this spacing protuberance is provided with in two relative modes, and spacing protuberance inboard is the parallel or approximate plane that is parallel to this axis hole.

16. the turning shaft structure as claim 6 or the different sound of 12 described eliminations is characterized in that be provided with pad between this movable cam and this elastic element, this pad and this shock absorber join and suppress this shock absorber.

17. turning shaft structure as claim 6 or the different sound of 12 described eliminations, it is characterized in that, be provided with pad between this movable cam and this elastic element, this pad and this shock absorber join and suppress this shock absorber, and this pad has ring flange and is used to coat this shock absorber.