CN201146138Y

CN201146138Y - Knob structure

Info

Publication number: CN201146138Y
Application number: CNU2007203118119U
Authority: CN
Inventors: 李航; 郭景丰
Original assignee: Inventec Corp
Current assignee: Inventec Corp
Priority date: 2007-12-11
Filing date: 2007-12-11
Publication date: 2008-11-05
Anticipated expiration: 2017-12-11

Abstract

The utility model discloses a knob structure which is applied on a shell of an electric device, so as to operate a touch control unit; the utility model includes a knob seat arranged on the shell, an interlocking unit arranged on the knob seat as well as a knob body used for covering the interlocking unit; the knob seat is provided with a middle hole of the knob as well as a first curtailing part arranged at the edge of the middle hole of the knob; the interlocking unit is provided with a combining part which penetrates the middle hole of the knob; the knob body is provided with a concave part and a second curtailing part annularly arranged at the outer circle on the bottom surface of the concave part; a first clearance is arranged between the combining part and the first curtailing part; a second clearance is arranged between the bottom surface and the knob seat, thereby leading the knob to rotate smoothly.

Description

Knob structure

Technical field

The utility model relates to a kind of knob structure, more detailed it, relate to the knob structure that is applied to electronic installation.

Background technology

Electronic technology is maked rapid progress at present, various for example is that other electronic installations such as computer, server are sold on market like the mushrooms after rain, the structural design that adds electronic installation is more and more accurate with in response to multi-functional demand, be to utilize how effectively to carry out the electronic installation inner space, meet most economic benefit to reach, become the problem of present industry institute concern, the juncture phase shape of each element on the also therefore various electronic installation seems important.

Existing various electronic installations all are provided with control element, operate accordingly in order to control this electronic installation.For instance, computer is provided with power knob, in order to the function of mains switch to be provided; Or mobile phone is provided with keyboard/knob, in order to the function that dialing is provided and selects; Or on notebook computer or stereo set, knob is set, to adjust volume; Also or the knob/button on the remote controller of some household appliances (for example TV, air-conditioning equipment and washing machine or the like), can carry out operations in order to control various household electrical appliances.

With the knob on the notebook computer is example, sees also Fig. 1 a and Fig. 1 b, and wherein, Fig. 1 a is the schematic perspective view of existing knob structure, the cutaway view that Fig. 1 b cuts open from the A-A line segment for Fig. 1 a.See also Fig. 1 a, this knob is to be applied on the casing 10 of electronic installation for the touch control unit 301 of operating host plate 30, can be for example for being used to adjust the volume of notebook computer.This knob generally includes is located at notebook computer casing 10 and its bottom to knob base 11 that should touch control unit 301, interlock unit 13 (shown in Fig. 1 b) that this knob base 11 is located in turn freely and be located at the knob body 15 of this knob base 11 for this interlock unit 13 of cover cap, by by rotating this knob body 15 to a certain position clockwise or counterclockwise, can adjust the size of volume.Shown in Fig. 1 b, this knob body 15 is the disc-shaped body that are " ㄇ " font section, and the disc-shaped base that this knob base 11 is " ㄩ " font section, and this interlock unit 13 has both sides and is symmetrical arranged grab 131.This interlock unit 13 be hot melt in conjunction with this knob body 15, and this grab 131 can be arranged in the knob mesopore 110 of this knob base 11, makes this grab 131 be snapped in this knob mesopore 110, to fix this interlock unit 13 and this knob body 15 to this knob base 11.

Yet, because the recess bottom surface of this knob body 15 is quite near this knob base 11, and this knob body 15 is a metal material, the recess outer rim also can leave the burr that plating produces, one-sided stressed and rotate when this knob body 15, can cause the inclination of this knob body 15, and cause the inwall of described burr part Chu Touch to this knob base 11, thereby produce bigger frictional force, make to rotate to have some setbacks.

Simultaneously,, can drive this interlock unit 13 when rotating this knob body 15, make to produce friction between this grab 131 and this knob mesopore 110, cause rotation to have some setbacks because this grab 131 is bottom surface and the hole wall inner edges that directly contact this knob mesopore 110.In addition, as previously mentioned, because this knob body 15 is bodies that metal material is made, for example plastics etc. are made and this interlock unit 13 is generally elastomeric material, fix more or less to produce error by hot melting way, so cause the center off-centre of this interlock unit 13 easily.So, also can make the clearance of 110 of this grab 131 and this knob mesopores less, cause interfere and increase this grab 131 and this knob base 11 between friction, cause rotation to have some setbacks.

In sum, how to find a kind of improved knob structure,, become present problem demanding prompt solution then to avoid above-mentioned many disadvantages.

Summary of the invention

In view of the shortcoming of above-mentioned prior art, a purpose of the present utility model is to provide a kind of knob structure that can smooth and easy rotation.

Another purpose of the present utility model is to provide a kind of knob structure of reducing friction

For achieving the above object and other purpose, the utility model provides a kind of knob structure, be applied on the casing of electronic installation for the operation touch control unit, this knob structure comprises: knob base, be located at this housing, and the bottom is to should touch control unit, has the knob mesopore and is located at the first reduction portion of knob mesopore peritreme; This knob base is located in the interlock unit, and has the joint portion that wears this knob mesopore, wherein has first clearance between this joint portion and this first reduction portion; And the knob body, have the recess that is used for this interlock unit of cover cap and be located on the second reduction portion of this periphery, recess bottom surface, wherein have second clearance between this bottom surface and this knob base.

In the aforesaid knob structure, this joint portion is a grab.This second reduction portion is a chamfering, and wherein, this second reduction portion is preferably fillet.In an embodiment, can comprise the 3rd reduction portion that is located on this recess bottom surface inner edge, the 3rd reduction portion is a chamfering, wherein, the 3rd reduction portion is preferably fillet.In another embodiment, can comprise the 4th reduction portion that is located at this knob body end face.

Than prior art, knob structure of the present utility model design reduction portion provides a plurality of clearances, reduces the friction probability between this knob body and this knob base thus, and avoids the interference between the knob mesopore of the joint portion of this interlock unit and this knob base.So, just, can solve in the prior art because friction causes the problem that has some setbacks of rotating.Simultaneously, the reduction portion of the utility model design there is no the difficulty in the making, and the more relative manufacturing materials of saving has the benefit that reduces cost.In addition, the utility model need not set up other element and can address the deficiencies of the prior art, and can be used in existing or the newly-designed electronic installation, has industry applications.

Description of drawings

Fig. 1 a and Fig. 1 b are the schematic diagram of existing knob structure, and wherein Fig. 1 a is the schematic perspective view of existing knob structure, the cutaway view that Fig. 1 b cuts open from the A-A line segment for Fig. 1 a; And

Fig. 2 is the cutaway view of knob structure one embodiment of the present utility model.

The simple declaration of element numbers:

10 casings

11 knob bases

110 knob mesopores

13 interlock unit

131 grabs

15 knob bodies

30 motherboards

301 touch control units

51 knob bases

511 knob mesopores

513 first reduction portions

515 hot melt portions

53 interlock unit

531 joint portions

5311 hook ends

55 knob bodies

551 recesses

553 bottom surfaces

555 second reduction portions

557 the 3rd reduction portions

559 the 4th reduction portions

57 first clearances

59 second clearances

Embodiment

Below by specific instantiation execution mode of the present utility model is described, those skilled in the art can understand other advantage of the present utility model and effect easily by the content that this specification disclosed.

Please referring to Fig. 2, is the cutaway view that shows knob structure one embodiment of the present utility model.Wherein, the utility model is to be applied to electronic installation, and in present embodiment, this electronic installation can be for example notebook computer, and this electronic installation has casing 10 and is positioned at the touch control unit 301 of this casing 10, this casing 10 can be the shell of notebook computer host machine part, and this knob structure is for this touch control unit 301 of operation in herein, adjusts used as volume; Certainly, this knob structure for example can be applicable to PDA(Personal Digital Assistant), mobile phone, sound equipment, MP3/MP4 player again or other needs the electronic installation of knob structure, non-ly exceeds with present embodiment.Because the structure of this electronic installation and casing and touch control unit all belongs to prior art with effect and is not the application's feature,, simplify accompanying drawing then and the relevant structure of only exemplary demonstration for the feature that makes the application is more clear understandable.Therefore, parts structure shown in the accompanying drawing only is the usefulness of explanation, but not in order to limit the utility model person, close chat earlier bright.

As shown in the figure, knob structure of the present utility model comprises: the knob body 55 of being located at the knob base 51 of this housing 10, the interlock unit 53 of being located at this knob base 51 and this interlock unit 53 of cover cap.

This knob base 51 is to be fixed in this casing 10, and the bottom is to should touch control unit 301, has knob mesopore 511 and is located at the first reduction portion 513 of these knob mesopore 511 peritremes.In present embodiment, this knob base 51 is the discoid pedestal of " ㄩ " font section, and has been peripherally installed with hot melt portion 515, is fixed in this casing 10 with hot melt thus; Wherein, this hot melt portion 515 can be perforation.Simultaneously, than prior art, the diameter of this knob mesopore 511 is to strengthen, to form this first reduction portion 513.

This knob base 51 is located in this interlock unit 53, and has the joint portion 531 that wears this knob mesopore 511, wherein has first clearance 57 between this joint portion 531 and this first reduction portion 513.In present embodiment, this interlock unit 53 is to be made by elastomeric material, and this elastomeric material for example is plastics, and this joint portion 531 is a grab, have distortion elasticity, and end has hook end 5311; And, because of having first clearance 57 between this joint portion 531 and this first reduction portion 513, so this joint portion 531 can be passed this knob mesopore 511 and not contact this knob mesopore 511.Certainly, the technical staff in the technical field as can be known, though this joint portion 531 does not contact this knob mesopore 511, but the diameter of this knob mesopore 511 also non-unrestrictedly strengthens, and the hook end 5311 that still need make this joint portion 531 is enough to block this knob mesopore 511 bottom surfaces, deviates from this knob mesopore 511 to prevent this joint portion 531.

This knob body 55 has the recess 551 that is used for this interlock unit 53 of cover cap and is located on the second reduction portion 555 of 553 peripheries, bottom surface of this recess 551, wherein has second clearance 59 between this bottom surface 553 and this knob base 51.This knob body 55 is the disc-shaped body that are " ㄇ " font section, and this second reduction portion 555 is a chamfering.In present embodiment, this second reduction portion 555 is a fillet, but should know that the shape of this second reduction portion 555 also can be as arc or triangle, as long as can widen the clearance between this second reduction portion 555 and this knob base 51.

The 3rd reduction portion 557 that in present embodiment, can comprise simultaneously, bottom surface 553 inner edges that are located on this recess 551.The 3rd reduction portion 557 is a chamfering.In present embodiment, the 3rd reduction portion 557 is a fillet, but should know that the shape of the 3rd reduction portion 557 also can be as arc or triangle, as long as can widen the clearance between the 3rd reduction portion 557 and this interlock unit 53.In addition, also the 4th reduction portion 559 can be set, for example reduce the thickness of this knob body 55, to widen this second clearance 59 in the end face of this knob body 55.

When use is of the present utility model, owing to have this first clearance 57, this joint portion 531 does not directly contact the bottom surface and the hole wall inner edge of this knob mesopore 511, rotate this knob body 15 and when driving this interlock unit 13, can not produce friction between this joint portion 531 and this knob mesopore 511, can smooth and easyly rotate.And, as previously mentioned, error is more or less arranged even hot melt is fixed, and cause the center off-centre of this interlock unit 53,511 of this joint portion 531 and this knob mesopores still can keep this first clearance 57, prevent from thus to interfere and do not have friction, can this knob body 55 of smooth and easy rotation.Simultaneously, owing to have second clearance 59 between this bottom surface 553 and this knob base 51, the bottom surface 553 of this knob body 55 can not contact with this knob base 51, and can avoid friction, makes rotation smooth and easy.

As from the foregoing, the utility model designs a plurality of reduction portion a plurality of clearances is provided, and the existence of described clearance has solved the subject matter of prior art.Simultaneously, the utility model is provided with these reduction portions and there is no difficulty in the making, and the more relative manufacturing materials of saving has cost benefit.In addition, use the utility model and need not set up other element, can address the deficiencies of the prior art, and do not change overall appearance and can be used in existing or the newly-designed electronic installation, have industry applications.

The foregoing description is illustrative principle of the present utility model and effect thereof only, but not is used to limit the utility model.Any those skilled in the art all can be under spirit of the present utility model and category, and the foregoing description is modified and changed.Therefore, rights protection scope of the present utility model should be listed as the scope of claims.

Claims

1, a kind of knob structure, the casing that is applied to electronic installation is characterized in that for the operation touch control unit, comprising:

Knob base is located at this casing, and the bottom is to should touch control unit, has the knob mesopore and is located at the first reduction portion of knob mesopore peritreme;

This knob base is located in the interlock unit, and has the joint portion that wears this knob mesopore, wherein has first clearance between this joint portion and this first reduction portion; And the knob body, have the recess that is used for this interlock unit of cover cap and be located on the second reduction portion of this periphery, recess bottom surface, wherein have second clearance between this bottom surface and this knob base.

2, knob structure according to claim 1 is characterized in that: this joint portion is a grab.

3, knob structure according to claim 1 is characterized in that: this second reduction portion is a chamfering.

4, knob structure according to claim 3 is characterized in that: this second reduction portion is a fillet.

5, knob structure according to claim 1 is characterized in that: comprise the 3rd reduction portion that is located on this recess bottom surface inner edge again.

6, knob structure according to claim 5 is characterized in that: the 3rd reduction portion is a chamfering.

7, knob structure according to claim 6 is characterized in that: the 3rd reduction portion is a fillet.

8, knob structure according to claim 1 is characterized in that: comprise the 4th reduction portion that is located at this knob body end face again.