CN2630555Y

CN2630555Y - Hinge joint mechanism

Info

Publication number: CN2630555Y
Application number: CN 03226452
Authority: CN
Inventors: 李昌志; 陈家骅
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-05-23
Filing date: 2003-05-23
Publication date: 2004-08-04
Anticipated expiration: 2013-05-23

Abstract

The utility model is a hinged mechanism, which includes a shell body, a cam, a following part, a spring and a top cover; one end of the shell body opened with a mouth, the other end is a semi-sealing bottom cover with a circular hole, and two sliding troughs are arranged on the semi-sealing bottom cover; the cam is arranged in the shell body and one end is provided with a header which extends out of the circular hole of the bottom cover, the other end is provided with a coherent curved surface; the following part is a columnar body, both ends thereof are provided with two protuberances which are respectively arranged in two sliding troughs, the following part contacts the cam, the top cover is positioned at the opened end of the shell body, the spring is positioned between the following part and the top cover. The hinged mechanism is with simple structure, and stability of assembling.

Description

Articulated mechanism

[technical field]

The utility model is about a kind of articulated mechanism, especially the articulated mechanism of using about a kind of folding-type electronic device.

[background technique]

Flourish along with the wireless telecommunications and the information processing technology, portable electronic equipment such as mobile phone, PDA competitively emerges in large numbers, make the Consumer can enjoy all facilities that high-tech brings whenever and wherever possible to the full, and wherein folding-type electronic device is favored by consumers in general because of the exquisite novelty of its structure.

Folding-type electronic device is used articulated mechanism and is connected body and renovate, a kind of existing articulated mechanism, as U. S. Patent the 5th, 628, No. 089 disclose, see also Fig. 5, this articulated mechanism has a housing 303, one spring 405, one cam 404, one follower 403 and a cap 305, this housing 303 1 ends sealing, the other end opening, spring 405, cam 404, follower 403 places in the housing 303 in turn, cap 305 covers opening, these housing 303 internal surfaces 465 have two guide rails 437, its outer surface has two grooves 423, have hole 435 on the groove 423, these cam 404 outer surfaces 467 have two tracks 417, it and guide rail 437 cooperate can endwisely slip cam 404 in body 303, these cam 404 1 ends have irregular surface 419, this follower 403 has a body 443, one step 445, one head 413 and a flat board 415, be used for cooperating with body (figure does not show) interlocking of electronic equipment and with cam 404, this cap 305 has two arms 409, inwardly stamps out a projection 411 on the arm respectively, the hole 435 of it and housing 303 is buckle mutually, with component package in housing 303.

This articulated mechanism all is assembled into one with all component, realizes modularization, but the structure of its head 413 is complicated, and 305 projections 411 with two arms 409 of this cap are buckled on the hole 435 of housing 303, and buckle power is not strong, gets loose easily.

[model utility content]

It is a kind of simple in structure that the purpose of this utility model is to provide, and assembles firm articulated mechanism.

The utility model is a kind of articulated mechanism, it comprises a housing, a cam, a follower, a spring and a top cover, this housing one end opening, the other end is the semiclosed bottom that a circular hole is arranged, two guide portions are arranged on it, this cam places in the housing, the one end has a square column head, circular hole by this bottom stretches out, and the other end has a curved surface that links up, and these follower two ends have two projections to be placed on respectively in two guide portions, contact with cam, this top cover is positioned at housing opening one end, cooperates with latch and pin-and-hole and fixes, and this spring is between follower and top cover.

Compared with prior art, the utlity model has following advantage: articulated mechanism with simple Cylindrical object as follower, its cam is with square column head and electronic equipment interlocking, housing opening one end cooperates in aggregates to assemble with top cover and latch, this articulated mechanism structure is simpler, assembles more firm.

[description of drawings]

Fig. 1 is the assembling stereogram of the utility model articulated mechanism;

Fig. 2 is the exploded perspective view of the utility model articulated mechanism;

Fig. 3 is that the utility model articulated mechanism follower is positioned at the sectional view of trench along the III-III line;

Fig. 4 is that the utility model articulated mechanism follower is positioned at the sectional view of protruding peak along the III-III line;

Fig. 5 is the exploded perspective view of existing articulated mechanism.

[embodiment]

See also Fig. 1 and Fig. 2, the utility model articulated mechanism comprises a housing 1, a cam 2, a follower 3, a spring 4, a package assembling and a latch 6, and wherein this cam 2, follower 3, spring 4 and package assembling are contained in the housing 1 in proper order.

1 one-tenth of this housing is cylindric, one end opening (not indicating), the other end is the semiclosed bottom 11 with a circular hole 16, two flanges 13 and two symmetrically arranged pin-and-holes 15 are arranged on this housing 1, this flange 13 is integrally formed at the y direction of housing 1, make the cross section of this housing 1 become a given shape, closely cooperate mutually with the cavity of renovating given shape (figure does not show) of folding-type electronic device, this pin-and-hole 15 is positioned near housing 1 opening one end, this housing 1 opening one end forms two locating slots 14, being symmetrically arranged with two guide portions on this housing 1, is two relative chutes 12 in the present embodiment.

These cam 2 one ends have a square column head 21, cam 2 places in the housing 1 during assembling, head 21 is stretched out by the circular hole 16 of bottom 11, closely cooperate mutually with the consistent cavity of shape on the body of folding-type electronic device, these cam 2 the other ends have a curved surface that links up (not indicating), and it comprises disymmetrical trench 22 and protruding peak 23.This follower 3 is Cylindrical objects, its two ends have a projection 31 respectively, the diameter of this projection 31 is slightly less than the width of chute 12, and these follower 3 total lengths enough make projection 31 place chute 12 when it is positioned over housing 1, and the curved surface of this follower 3 and cam 2 matches.

This package assembling is a hollow top cover 5 in the present embodiment, the sealing of one end, the other end has circular hole, its two side has a L type positioning table 52 respectively, two locating slots, 14 width of its width and housing 1 are consistent, and this top cover 5 has disymmetrical pin-and-hole 51 on two sides in addition, when top cover 5 is positioned over housing 1 opening, when positioning table 52 and locating slot 14 matched, this pin-and-hole 51 and pin-and-hole 15 were aimed at.This latch 6 is cylinders, and its radius is consistent with pin-and-

hole

15 and 51, and the external diameter of its length and housing 1 is suitable.

During assembling, earlier cam 2 is placed in the housing 1, its head 21 is stretched out by circular hole 16, again follower 3 is packed in the housing 1, the axis normal of the length direction of follower 3 and housing 1, its outer surface and cam 2 are inconsistent, its two projection 31 places in two chutes 12 of housing 1, in chute 12 length ranges, slides and do not move laterally or with restriction follower 3 around the rotation of the longitudinal shaft of housing 1, then spring 4 is placed in the housing 1, offset with follower 3, put opening one end of top cover 5 to cover housing 1 again, it seals an end and spring 4 offsets, imposing the positioning table 52 that longitudinal force makes top cover 5 is embedded on the locating slot 14 fully, this moment, the pin-and-hole 15 of its pin-and-hole 51 and housing 1 was aimed at naturally, at last latch 6 is inserted in the pin-and-

hole

15 and 51, thereby top cover 5 is fixed on the housing 1.The assembly of this articulated mechanism all is assembled in to be convenient in the housing assemble with electronic equipment.

Above-mentioned only is one of mode of execution of the present utility model, this package assembling also can be the diameter cap bigger slightly than housing 1, cover opening one end of housing 1 in plug dress mode, it also can be the lid that an outer surface has screw thread, this housing 1 opening one end internal surface also has screw thread, to cooperate the opening of packing casing 1.

See also Fig. 3, when follower 3 was positioned at the trench 22 of cam 2, spring 4 elastic force were less, and it is resisted against trench 22 positions of cam 2 with follower 3, and makes the two be in steady state.

If the application of force makes housing 1 rotate relative to cam 2, follower 3 also rotates relative to cam 2, and its curved surface relative to cam 2 moves, and endwisely slips along

chute

12, and 4 whiles of spring are elastic telescopic thereupon.Follower 3 is soaring along curved surface, when follower 3 is positioned at the protruding peak 23 of cam 2, spring 4 is compressed into the shortest (as shown in Figure 4), accumulation elastic potential energy maximum, when follower 3 is crossed protruding peak 23, the elastic potential energy of spring 4 accumulations makes follower 3 slide along the curved surface of cam 2, and until trench 22 positions, the two position relation is in steady state again.

Claims

1. articulated mechanism, it comprises a housing, a cam, a follower and a spring, this cam, follower and spring place in the housing, it is characterized in that this articulated mechanism further comprises a package assembling, it is positioned at housing one end, this housing is provided with two guide portions, this follower is a Cylindrical object, can slide along the guide portion of this housing, this cam one end has a curved surface, two trench and two protruding peaks are arranged on it, and the outer surface of follower and this curved surface match, and the outer surface of spring and follower offsets.

2. articulated mechanism as claimed in claim 1 is characterized in that this housing one end opening, and the other end is the semiclosed bottom that a hole is arranged.

3. articulated mechanism as claimed in claim 2 is characterized in that this cam one end has a square column head, and stretch out in its hole by this bottom.

4. articulated mechanism as claimed in claim 1 is characterized in that these follower two ends have a projection respectively.

5. articulated mechanism as claimed in claim 4 is characterized in that this guide portion is two chutes that are provided with relatively, and the projection at these follower two ends falls in the chute.

6. articulated mechanism as claimed in claim 1 is characterized in that this housing has two pin-and-holes.

7. articulated mechanism as claimed in claim 6 is characterized in that this package assembling is a top cover, has two pin-and-holes on it.

8. articulated mechanism as claimed in claim 7 is characterized in that this articulated mechanism further comprises a latch, and its pin-and-hole with housing and top cover cooperates so that top cover is fixed on the housing.

9. articulated mechanism as claimed in claim 1 is characterized in that this housing one end forms two locating slots.

10. articulated mechanism as claimed in claim 9 is characterized in that these top cover both sides have a positioning table respectively.