CN1975639A

CN1975639A - Height regulating mechanism

Info

Publication number: CN1975639A
Application number: CN 200510124093
Authority: CN
Inventors: 李育祈
Original assignee: Asustek Computer Inc
Current assignee: Asustek Computer Inc
Priority date: 2005-11-28
Filing date: 2005-11-28
Publication date: 2007-06-06
Anticipated expiration: 2025-11-28
Also published as: CN100395687C

Abstract

A height adjusting device includes the built-in fitment, the cylinder, the first gear and the second gear. The built-in fitment is set on the sell which has the hold groove and at least one supporting part extended to the groove. The cylinder has at least one helix leading track on the side wall. The cylinder rotates the supporting part slides with the corresponding helix leading track. The first gear is set on the cylinder and rates with the cylinder at the same time. The second gear matches with the first gear; the second drives the first gear rotate to adjust the relative distance between the shell and the cylinder bottom.

Description

Height control mechanism

Technical field

The present invention relates to a kind of adjusting mechanism, and be particularly related to a kind of height control mechanism that is used to adjust the keyboard angle of inclination.

Background technology

In the advanced information society, computing machine is inseparable with the relation of life, common desktop PC (Desktop Computer), notebook computer (Notebook Computer) and flat computer (Tablet PC) or the like of comprising, thereby often need the operation of using keyboard to import.Import data when the user need use keyboard for a long time, write file, during drawing etc., can allow the user cosily use keyboard just very important.Traditionally, the comfort level when providing the user to typewrite generally can be pasted foot pad so that keyboard has an angle of inclination in the bottom surface of keyboard.Following mode with reference to the known keyboard height control of description of drawings.

Fig. 1 is known keyboard.Please refer to Fig. 1, known keyboard 10 comprises housing 100 and a plurality of button (not shown)s, and wherein these buttons are arranged in the housing 100, and the user can be by these button input data.On the bottom surface of one side of housing 100 foot pad 100a is housed.Because the thickness of foot pad 100a makes known keyboard 10 predetermined angular that can tilt, therefore user's wrist can be comparatively comfortable and light when the user uses known keyboard 10 to typewrite.As from the foregoing, the adjustment mode of the known keyboard height of this kind only is the angle of inclination that the foot pad 100a that installed certain height additional changes known keyboard 10.Yet the height of foot pad 100a that is to say that the angle of inclination of known keyboard 10 is also just fixing, thereby the known keyboard 10 of this kind also can't be applicable to all users for fixing.In other words, the user can't be according to the required angle of inclination of adjusting keyboard.

Summary of the invention

In view of this, the purpose of this invention is to provide a kind of height control mechanism, so that adjust the angle of inclination of keyboard.

Based on above-mentioned purpose or other purposes, the present invention proposes a kind of height control mechanism, and it is applicable to that on the housing of keyboard, keyboard is positioned on the plane, and keyboard has housing.This height control mechanism comprises fixture, right cylinder, first gear and second gear.Fixture is fixed on the housing, and it has storage tank and at least one support, and storage tank passes housing, and support is arranged at the storage tank inwall.Cylindrical at least a portion is arranged in this storage tank, and have at least one helical guideway on its sidewall, support is embedded in helical guideway slidably, and this right cylinder is when rotating, support is suitable for sliding along the helical guideway of correspondence, to change the length that right cylinder stretches into storage tank.Moreover first gear is fixed on the right cylinder.Second gear and first gearing mesh, wherein, second gear is suitable for driving first gear and right cylinder rotates, and support is slided along the helical guideway of correspondence, pass storage tank with the change right cylinder and protrude in the outer length of housing, right cylinder protrudes in an end and the plane contact of housing.

According to the embodiment of the invention, at least a portion of second gear is exposed to outside the housing.

According to the embodiment of the invention, the thickness of first gear is greater than the thickness of second gear.

According to the embodiment of the invention, helical guideway can have positioning area.When support when positioning area slides, the relative position between right cylinder bottom surface and the fixture is kept fixing.

According to the embodiment of the invention, fixture and housing can be one.

According to the embodiment of the invention, housing can be to have opening, and this opening exposes part second gear.

According to the embodiment of the invention, the right cylinder and first gear can be one.

According to the embodiment of the invention, right cylinder can be to have first fitting portion in the one end, and first gear has second fitting portion, and first gear is assembled to cylindrical first fitting portion by second fitting portion.

According to the embodiment of the invention, above-mentioned first fitting portion can be a lug boss, and second fitting portion can be a depressed part.

According to the embodiment of the invention, above-mentioned first fitting portion can be a depressed part, and second fitting portion can be a lug boss.

According to the embodiment of the invention, support can be hemispherical.

Based on above-mentioned, height control of the present invention mechanism adopts gear set, rotates and adjusts relative distance between housing and right cylinder bottom surface to drive right cylinder.Therefore, the user can pass through the required keyboard angle of inclination of this height control institutional adjustment.

State with other purposes, feature and advantage and can become apparent on the present invention for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.

Description of drawings

Fig. 1 is known keyboard.

Fig. 2 is for being applied to the synoptic diagram of keyboard according to the height control mechanism of the embodiment of the invention.

Fig. 3 A is the exploded view according to the height control mechanism of the embodiment of the invention.

Fig. 3 B is the constitutional diagram according to the height control mechanism of the embodiment of the invention.

Fig. 3 C is first gear and the cylindrical stereographic map of Fig. 3 A.

Fig. 4 is the another kind of right cylinder according to the embodiment of the invention.

The main element description of symbols

10: known keyboard

20: height control mechanism

30: keyboard

300a: opening

100,300: housing

100a: foot pad

232: fixture

232a: storage tank

232b: support

234,334: right cylinder

234a, 334a: helical guideway

234b: first fitting portion

236: the first gears

236a: second fitting portion

238: the second gears

334b: positioning area

Embodiment

Fig. 2 is for being applied to the synoptic diagram of keyboard according to the height control mechanism of the embodiment of the invention.Please refer to Fig. 2, the height control mechanism 20 of present embodiment is used for keyboard 30, so the user can be according to the height and the angle of inclination thereof of required adjustment keyboard 30.In addition, keyboard 30 can be the employed keyboard of desktop PC, the employed keyboard of notebook computer or the employed keyboard of other electronic installations.This keyboard 30 comprises a plurality of button (not shown)s and a housing 300, and wherein these buttons are arranged in the housing 300, and the user can be by these button input data.In addition, housing 300 has opening 300a, and this opening 300a exposes part height control mechanism 20.

Fig. 3 A is the exploded view according to the height control mechanism of the embodiment of the invention, and Fig. 3 B is the constitutional diagram according to the height control mechanism of the embodiment of the invention, and Fig. 3 C is first gear and the cylindrical stereographic map of Fig. 3 A.Please be simultaneously with reference to Fig. 3 A to Fig. 3 C, height control mechanism 20 comprises fixture 232, right cylinder 234, first gear 236 and second gear 238.Wherein, fixture 232 is arranged on the housing 300 of keyboard 30, and fixture 232 has storage tank 232a and extend at least one interior support 232b of storage tank 232a so far.In the present embodiment, support 232b is hemispherical, yet support 232b also can be cylindric or other shapes.What in addition, present embodiment did not limit support 232b is provided with position and quantity.For example, the quantity of preferable support 232b is four, and support 232b is a copline with the bottom surface of housing 300 preferably.In the present embodiment, fixture 232 is one with housing 300, but fixture 232 and housing 300 also can be members independently.

Right cylinder 234 has helical guideway 234a and is positioned on its sidewall, and the first fitting portion 234b is positioned at the one end.More specifically, right cylinder 234 is arranged in the fixture 232, and passes storage tank 232a.In addition, these supports 232b embeds in the helical guideway 234a, and therefore when right cylinder 234 rotations, the relative distance between the bottom of right cylinder 234 and the housing 300 just can change.Moreover first gear 236 is arranged in the fixture 232, and first gear 236 has the second fitting portion 236a.Because the first fitting portion 234b of the second fitting portion 236a of first gear 236 and right cylinder 234 can tabling, therefore first gear 236 and right cylinder 234 can be suitable for rotating simultaneously.

In the present embodiment, the first fitting portion 234b is the cross protrusion, and the second fitting portion 236a is a cross recess, yet in another embodiment, the first fitting portion 234b also can be altered to cross recess, and the second fitting portion 236a changes to the cross protrusion.Perhaps, the first fitting portion 234b also can be altered to a word protrusion, and the second fitting portion 236a is a word groove.In other words, the first fitting portion 234b and the second fitting portion 236a can be any two kinds can chimeric mutually structure, and when first gear 236 rotated, first gear 236 can drive right cylinder 234 and rotate.What deserves to be mentioned is that in the present embodiment, first gear 236 and right cylinder 234 are member independently, but first gear 236 and right cylinder 234 also can be one.

Second gear

238 and 236 engagements of first gear, and the thickness of first gear is greater than the thickness of second gear.Second gear 238 is suitable for driving first gear 236 and rotates.More specifically, the opening 300a of housing 300 exposes part second gear 238, therefore when the user rotates this second gear 238 that exposes, second gear 238 just can make gear 236 rotations of winning, and also can and then rotate with right cylinder 234 that first gear 236 fits together.Thus, when right cylinder 234 rotates, the support 232b of fixture 232 slides along the helical guideway 234a that is positioned on right cylinder 234 sidewalls, so the relative distance between housing 300 and right cylinder 234 bottom surfaces just can change along with the rotation of right cylinder 234.In other words, the user can rotate second gear 238, to change the angle of inclination of housing 300, just changes the angle of inclination of keyboard 30, and therefore different users just can adjust the angle of inclination of keyboard 30 according to the demand of itself.

Fig. 4 is the another kind of right cylinder according to the embodiment of the invention.Please refer to Fig. 4 and Fig. 3 A, the right cylinder 334 of Fig. 4 is similar to the right cylinder 234 of Fig. 3 C, its difference is: the helical guideway 334a of right cylinder 334 has a plurality of positioning area 334b, and between each positioning area 334b and right cylinder 334 bottom surfaces at a distance of a preset distance.When support 232b when any positioning area 334b slides, the relative distance between right cylinder 334 bottom surfaces and the housing 300 is kept fixing.In other words, the different different angles of inclination of positioning area 334b representative that is to say that keyboard 30 can have the angle of inclination of multistage, so the user can select the angle of inclination of keyboard 30 according to demand own.

In sum, height control of the present invention mechanism has following advantage at least:

One, by height control of the present invention mechanism, the user can adjust the angle of inclination of keyboard according to the demand of itself.

Two, for notebook computer, because the angle of inclination of keyboard can adjust, so the space between keyboard bottom surface and the placed side also can strengthen, to improve the heat dissipation problem of notebook computer.

Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the present invention; when can doing a little change and improvement, so protection scope of the present invention is as the criterion when looking the claim person of defining.

Claims

1. a height control mechanism is applicable to keyboard, it is characterized in that this keyboard is positioned on the plane, and this keyboard has housing, and this height control mechanism comprises:

Fixture, it is fixed in this housing, and has storage tank and at least one support, and this storage tank passes this housing, and this support is arranged at this storage tank inwall;

Right cylinder, its at least a portion is arranged in this storage tank, and has helical guideway, and this helical guideway is arranged at this cylindrical sidewall, and the chimeric slidably right cylinder of this support;

First gear is fixed in this right cylinder; And

Second gear is with this first gearing mesh;

Wherein, when this second gear rotates, drive this first gear and this right cylinder and rotate, this support slides along this helical guideway, change this right cylinder and pass this storage tank and protrude in the outer length of this housing, this right cylinder protrudes in an end and this plane contact of this housing.

2. height control according to claim 1 mechanism is characterized in that at least a portion of this second gear is exposed to outside this housing.

3. height control according to claim 1 mechanism is characterized in that the thickness of the thickness of this first gear greater than this second gear.

4. height control according to claim 1 mechanism is characterized in that this helical guideway has positioning area, and when this support slided along this positioning area, the relative position between this right cylinder and this fixture was kept fixing.

5. height control according to claim 1 mechanism is characterized in that this fixture and this housing are one.

6. height control according to claim 1 mechanism is characterized in that this right cylinder and this first gear are one.

7. this cylindrical this first fitting portion it is characterized in that this right cylinder has first fitting portion in the one end, and this first gear has second fitting portion, and this first gear is fixed in by this second fitting portion in height control according to claim 1 mechanism.

8. height control according to claim 7 mechanism it is characterized in that this first fitting portion is a lug boss, and this second fitting portion is a depressed part.

9. height control according to claim 7 mechanism it is characterized in that this first fitting portion is a depressed part, and this second fitting portion is a lug boss.

10. height control according to claim 1 mechanism is characterized in that this support is hemispherical.