CN201221555Y

CN201221555Y - Cam assembly for rotating shaft

Info

Publication number: CN201221555Y
Application number: CNU2008201191913U
Authority: CN
Inventors: 潘盟仁; 简宗源; 陈思宜; 陈胜弘; 林雅菁; 彭建中
Original assignee: Jarllytec Co Ltd
Current assignee: Jarllytec Co Ltd
Priority date: 2008-07-15
Filing date: 2008-07-15
Publication date: 2009-04-15
Anticipated expiration: 2018-07-15

Abstract

The utility model relates to a cam assembly for shafts, comprising a fixed part with a shaft hole and a sliding part. The circumference of the shaft hole is provided with at least two first interference elements which are in wedged concave parts; each of both sides of the middle part of the first interference element is provided with an angle; the angles of the first interference elements are separately arranged towards the axial direction and radial direction in order; and both sides of the middle part of each interference element are adjoined with an inclined plane that is beveled upwards. The sliding part is butted with the fixed part; the sliding part is provided with an embedded hole; second interference elements, which have the same shape and the same size with the first interference parts, and are in wedged convex parts, are arranged on the circumference of the embedded hole and on the positions corresponding to the first interference parts; both sides of the middle part of the second interference elements are also provided with an angle, and the angles of the second interference elements are separately arranged towards the axial direction and radial direction in order; and both sides of the middle part of each interference element are adjoined with an inclined plane that is beveled downwards.

Description

The Cam set assembly that is used for rotating shaft

Technical field

The utility model is a kind of Cam set assembly, refers to a kind of Cam set assembly that is used for rotating shaft especially, and this Cam set assembly can make rotating shaft have the auto-closing function.

Background technique

Press the consumer 3C electronic product of tool flip, such as portable computer, e-dictionary, portable video-audio playing device and cover-lifting type mobile phone ... Deng, haply, be that main part is placed Lower Half, and link by the cover body part of the rotating shaft and the first half, make cover body part with respect to main part folding for it.Therefore, rotating shaft is also for determining a big essential factor of the said goods quality.

Only aforesaid 3C electronic product, for avoiding any folding of main part and cover body part, be with, the open end between the two is typically provided with at least one sliding type or press-switching so that when closed, can be by described switch with both combinations, and be in closed condition.And relevant dealer is the inconvenience of avoiding being provided with in the open end of this electronic product slipping switch or press-switching, therefore, shown in " turning shaft structure of tool automatic blocking " of the TaiWan, China patent announcement M296586 patent case that is had as the utility model claimant, it is in conjunction with one group of cam member in rotating shaft, wherein this cam member is docked by a fixed block and a slider to form, and makes it have the auto-closing effect.

Be example with traditional cam member promptly, it is made up of a fixed block and a slider, and as if the rotating shaft that applies to of inciting somebody to action, this fixed block is to be fixedly arranged on article, for example on the support; The slider then section of corresponding axostylus axostyle is offered an embedding hole, and passes through for it, makes it can be with the synchronous start of axostylus axostyle, and this slider one side is in abutting connection with an elastomer.And for making this cam member have the auto-closing effect, the approximal surface of its fixed block and slider relatively is provided with bump and reentrant part, and for both can be rotated reposefully, the quantity of this bump and reentrant part and configuration are with more than two or two and be set to good with isogonism.

" reducing the cam member of different sound " as TaiWan, China patent announcement that the utility model claimant had M309841 number is example, first interference element of this fixed block is to be bump, and it is in the concentric outer ring of this fixed block and inner ring one first outer slide and one first inner slide that are provided with different sequential relatively; And second interference element of this slider is to be reentrant part, and it is in the concentric outer ring of this slider and inner ring one first external chute and one first internal chute that are provided with different sequential relatively.By above-mentioned enforcement, when making the reentrant part of this slider rotate to opposite end,, and can not cause the puzzlement of locking once again to take place because of this fixed block does not have the setting of bump by locked position of coupler.The cam member that this case is no doubt given in this measure only has an automatic blocking position, that is first outer, first outer, the inner slide that internal chute is engaged in fixed block separately of slider.Only described outer, inner slide is to be the larger area long arc shape, its with the rotation repeatedly and friction situation of slider under, the phenomenon that is easy to generate excessive abrasion takes place, thereby reduces the working life of this cam member, really is a fly in the ointment.

In view of this, the utility model claimant this in the experience of being engaged in rotating shaft design and production and marketing for many years, it is longer because of length that phase can overcome the bump of known cam member with single automatic blocking function, be easy to generate the situation of excessive abrasion, and then undermine the critical defect in whole rotating shaft working life, through experiment and test repeatedly, and then develop and " Cam set assembly that is used for rotating shaft " of the present utility model.

The model utility content

The utility model main purpose is to provide a kind of designs simplification, can reduce abrasion, and increases the rotating shaft Cam set assembly that is used for rotating shaft in working life.

It is a kind of by changing the appearance of bump and reentrant part that the utility model secondary objective is to provide, and makes both only have the Cam set assembly that is used for rotating shaft of single automatic blocking position.

For reaching aforesaid purpose, the technological means that the utility model is taked provides a kind of Cam set assembly that is used for rotating shaft, it comprises: a fixed block, it opens an axis hole, this axis hole periphery is provided with at least two first interference elements that are the wedge shape reentrant part, have an angle between each first interference element both sides waist, the angle of these a plurality of first interference elements is arranged in regular turn towards axially reaching radially respectively, and each first interference element waist both sides is separately in abutting connection with an inclined-plane of upwards splaying; An and slider, dock with fixed block, it opens an embedding hole, this embedding hole peripheral is provided with appearance and measure-alike corresponding to each first interference element position, and second interference element that is the wedge shape bump, each second interference element both sides waist also has an angle, and the angle of this a plurality of second interference elements is respectively towards axially and radially arranging in regular turn, and adjacency one inclined-plane of splaying downwards separately, each second interference element waist both sides.

Another technological means that the utility model is taked provides a kind of Cam set assembly that is used for rotating shaft, it comprises: a fixed block, it opens an axis hole, this axis hole periphery is provided with at least two first interference elements that are the wedge shape bump, has an angle between each first interference element both sides waist, the angle of these a plurality of first interference elements is arranged in regular turn towards axially reaching radially respectively, and each first interference element waist both sides is separately in abutting connection with an inclined-plane of splaying downwards; An and slider, dock with fixed block, it opens an embedding hole, this embedding hole peripheral is provided with appearance and measure-alike corresponding to each first interference element position, and second interference element that is the wedge shape reentrant part, each second interference element both sides waist also has an angle, and the angle of this a plurality of second interference elements is respectively towards axially and radially arranging in regular turn, and adjacency one inclined-plane of upwards splaying separately, each second interference element waist both sides.

The beneficial effects of the utility model are:

The Cam set assembly that is used for rotating shaft of the present utility model has designs simplification, can reduce abrasion, and increases the working life of rotating shaft.

The Cam set assembly that is used for rotating shaft of the present utility model, it is by changing the appearance of bump and reentrant part, making both only have the position of single automatic blocking.

Description of drawings

For further disclosing concrete technology contents of the present utility model, below in conjunction with embodiment and accompanying drawing, describe in detail as after, wherein:

Fig. 1 is used for Cam set assembly first embodiment's of rotating shaft three-dimensional exploded view for the utility model;

Fig. 2 is the stereogram of Fig. 1 group after upright;

Fig. 3 is the sectional drawing of Cam set assembly Rotate 180 degree shown in Figure 1;

Fig. 4 is the utility model Cam set assembly second embodiment's a three-dimensional exploded view;

Fig. 5 is the utility model Cam set assembly the 3rd embodiment's a three-dimensional exploded view;

Fig. 6 is the stereogram of Fig. 5 group after upright;

Fig. 7 is the sectional drawing that Cam set assembly rotation 120 shown in Figure 5 is spent.

Embodiment

To shown in Figure 2, basically, first embodiment of the utility model rotating shaft is by a pivot member 1, one support 2 as Fig. 1, at least one friction plate 3, one Cam set assemblies 4, and at least one elastomer 5, and an end sealing 6 combines.Wherein, this Cam set assembly 4 is by a fixed block 41, and a slider 42 constitutes.

Wherein, this pivot member 1 is to be a body of rod, and it is made of an axostylus axostyle 11 and a convergence part 12, and these axostylus axostyle 11 sections are non-circular, so as with after the friction plate 3 chatted and slider 42 sockets of Cam set assembly 4, make them can be with axostylus axostyle 11 synchronous starts.Moreover these axostylus axostyle 11 free ends have an adapter section 111, its be with after the end sealing 6 chatted combine, each element of chatting after making is unlikely axially to be deviate from.

Convergence part 12 then is and article, and for example cover body part connects, and as shown in the figure, it is for a section is non-circular cylinder, so that directly be intercalated in cover body part, perhaps is incorporated into a fixed base, and it has a plurality of perforation, is beneficial to be locked in cover body part.

Support 2 is to be a support body, its vertical frame face 21 is opened wholeheartedly hole 211, pass through for axostylus axostyle 11, these heart hole 211 peripheries are opened the oilhole 213 of a tongue-and-groove 212 and some circular array, fixed block 41 intercalations and location for Cam set assembly 4, make this fixed block 41 be fixedly arranged on support 2 one sides, and the friction plate of chatting after inserting and putting 3.In addition, this support 2 is provided with a joining portion 22 in addition, and it is to be fixed in another article, main part for example, and as shown in the figure, this joining portion 22 is to open at least one hole 221 that connects, and to utilize known lock firmware, after for example screw passes through, and is locked in main part.

Friction plate 3 is a metal lamellar body, and it is the heart hole 211 that is adjacent to frame face 21, and it is to pass through for jack-post 11, and interlock thereupon, so that this friction plate 3 forms frictional force with the contact position of frame face 21 and fixed block 41 respectively.And for further lubrication effect is provided, these friction plate 3 peripheries also are provided with a plurality of oilholes 31, so that ccontaining lubricant grease.

Cam set assembly 4 is to comprise a fixed block 41 and a slider 42, and this fixed block 41 can be made via powder ejaculation or stamping processes with slider 42.Wherein, this fixed block 41 is a ring body, and its central authorities open a circular axis hole 411, passes through for known axostylus axostyle 11.This ring body one side periphery or at least one section of extension part 413 projections are non-circular geometric modelling, and for example semicircular trip 414 so that be intercalated in the tongue-and-groove 212 of the frame face 21 corresponding appearance of offering, and makes this fixed block 41 be fixed in support 2 one sides.

These fixed block 41 ring bodies axis hole 411 peripheries of side in addition are provided with at least two first interference elements 412, as shown in Figure 1, this two first interference element 412 is to be the wedge shape reentrant part, has an angle between the waist 412a of its both sides, the angle of these two first interference elements 412 can be identical or different, and the angle of two first interference elements 412 be respectively towards axially (inwardly) and radially (outwards) arrange and each waist 412a both sides adjacency one inclined-plane 412b that upwards splays separately in regular turn.

Slider 42 is a ring body also, is to dock with fixed block 41, and its central authorities open an embedding hole 421, and this embedding hole 421 is the section appearance corresponding to axostylus axostyle 11, makes them can be with axostylus axostyle 11 synchronous starts.

The mating face that this slider 42 is adjacent to fixed block 41 respectively is provided with one second interference element 422 corresponding to each first interference element, 412 position, this two second interference element 422 is to be the wedge shape bump, its both sides waist 422a also has an angle, the angle of these two second interference elements 422 can be identical or different, and the angle of two second interference elements 422 be respectively towards axially (inwardly) and radially (outwards) arrange and each waist 422a both sides adjacency one inclined-plane 422b that splays separately in regular turn downwards.

Wherein, the wedge shape reentrant part of this first, second interference element 412,422 and the set-up mode of wedge shape bump do not exceed with aforementioned, it also gets the phase double replacement, that is first interference element 412 of fixed block 41 is to be the wedge shape bump, second interference element 422 of slider 42 then is the wedge shape reentrant part, also can obtain the function with single automatic blocking position.

Elastomer 5 is to be socketed on axostylus axostyle 11, and slider 42 can be moved axially at axostylus axostyle 11.When this elastomer 5 is implemented, as shown in the figure, be with dish-shaped shell fragment for it, only not as limit, it also must also can obtain same effect for waveform splinter or spring.

End sealing 6 is the adapter sections 111 that are incorporated into axostylus axostyle 11, in order to take off each element before the standard, it is unlikelyly deviate from by axostylus axostyle 11.This end sealing 6 is to be an anticreep nut when implementing.

After the utility model stood according to aforesaid explanation group, promptly as shown in Figure 2, the fixed block 41 and the slider 42 of this Cam set assembly 4 were to be mated condition.At this moment, the second different interference element 422 of this two width is to be engaged in the appearance and measure-alike first interference element 412, and makes cover body part be blocking with respect to main part.And when cover body part was raised, the axostylus axostyle 11 of this pivot member 1 also rotated these friction plates 3 and this slider 42 along with cover body part rotation synchronously, and the inclined-plane 422b that makes each second interference element 422 climbs up along the inclined-plane 412b of first interference element 412 and moves.

Since should be when the blocking to first, second interference element 412,422, the angle between its two

waists

412a and 422a has identical sensing, for example all up.Therefore, when Rotate 180 is spent, as shown in Figure 3, should form a pair of to second interference element 422 and the angle sensing of being somebody's turn to do to first interference element 412 down with up a pair of, and make each second interference element 422 (shown in the hatching) be resisted against the plane of these first interference element, 412 both sides, and unlikely falling in first interference element 412, and have the function of single automatic blocking position.Especially, second interference element 422 of the present utility model is to be the wedge shape bump, and it is provided with the projection of long arc shape and the Cam set assembly speech of groove compared to known with inside and outside circle, because of rubbing surface significantly reduces, and reduce the generation that wears away, change the knot effect in working life thereby obtain to prolong.

See also Fig. 4, shown is second embodiment's schematic representation of the utility model rotating shaft, and wherein, this pivot also is by a pivot member 1, one support 2, at least one friction plate 3, one Cam set assemblies 4, and at least one elastomer 5, and an end sealing 6 combines.And the difference that can be rated as with previous embodiment is, it is non-circular geometric modelling that the extension part 413 of this fixed block 41 stretches out a section towards the frame face 21 of support 2, the trip 414 of rectangle for example, and frame face correspondence is offered a rectangle tongue-and-groove 212, for the intercalation of this trip 414, and make this fixed block 41 be fixedly arranged on this face 21 1 sides.

See also Fig. 5 to shown in Figure 6, shown is the 3rd embodiment's schematic representation of the utility model rotating shaft, and wherein, this pivot also is by a pivot member 1, one support 2, at least one friction plate 3, one Cam set assemblies 4, and at least one elastomer 5, and an end sealing 6 combines.And the difference that can be rated as with aforementioned two embodiments is that the mating face phase vertical angles of this fixed block 41 and slider 42 are provided with three first interference elements 412 and second interference element 422, for example wedge shape reentrant part and wedge shape bump.

Ditto described, the angle of these three first interference elements 412 and second interference element 422 is to reach radially (outwards) towards axially (inwardly) respectively to arrange in regular turn.Therefore, as shown in Figure 7, when slider 42 rotates in a counter-clockwise direction 120 when spending, its first and second second interference element 422 (shown in the hatching) is the plane that is resisted against second and third first interference element, 412 both sides because of moving, and unlikely falling into; The 3rd second interference element 422 then is moved to appearance and first measure-alike first interference element 412, only this second interference element 422 is supported by other two second interference elements 422, and unlikely falling in this first interference element 412, and form the automatic blocking state.

So, via enforcement of the present utility model, the effect that it gained is, because of the angle of at least two first, second interference elements is separately in order towards axially (inwardly) and radially (outwards) arrangement, therefore, when slider desire disengaging blocking and rotate, when its interference element moves to the interference element of fixed block, can can't coincide because of two interference element appearance and/or size, and unlikely generation butt joint effect makes this Cam set assembly only have single automatic blocking position.Especially, because of the interference element that is protrusion of the present utility model is to be the wedge shape blocks, but not the long arc shape blocks, can effectively dwindle area of contact with fixed block, with the generation of minimizing abrasion, thus the working life of increase rotating shaft, really a big good structure for doing and see before the ware.

That the utility model disclosed is a kind of of preferred embodiment, the change of every part or modification and come from technological thought of the present utility model and be have the knack of this technology the people was easy to know by inference, all do not take off claim category of the present utility model.

Claims

1. Cam set assembly that is used for rotating shaft is characterized in that it comprises:

One fixed block, it opens an axis hole, this axis hole periphery is provided with at least two first interference elements that are the wedge shape reentrant part, has an angle between each first interference element both sides waist, the angle of these a plurality of first interference elements is arranged in regular turn towards axially reaching radially respectively, and each first interference element waist both sides is separately in abutting connection with an inclined-plane of upwards splaying; And

One slider, dock with fixed block, it opens an embedding hole, this embedding hole peripheral is provided with appearance and measure-alike corresponding to each first interference element position, and second interference element that is the wedge shape bump, each second interference element both sides waist also has an angle, and the angle of this a plurality of second interference elements is respectively towards axially and radially arranging in regular turn, and adjacency one inclined-plane of splaying downwards separately, each second interference element waist both sides.

2. the Cam set assembly that is used for rotating shaft as claimed in claim 1 is characterized in that, wherein this fixed block is identical or different with the angle of two waists of at least two first, second interference elements of slider.

3. the Cam set assembly that is used for rotating shaft as claimed in claim 1 is characterized in that, wherein this fixed block another side periphery or at least one trip of extension part projection.

4. the Cam set assembly that is used for rotating shaft as claimed in claim 3 is characterized in that, wherein this trip is that section is non-circular geometric modelling.

5. the Cam set assembly that is used for rotating shaft as claimed in claim 4 is characterized in that, wherein this geometric modelling is semicircle or rectangle.

6. Cam set assembly that is used for rotating shaft is characterized in that it comprises:

One fixed block, it opens an axis hole, this axis hole periphery is provided with at least two first interference elements that are the wedge shape bump, has an angle between each first interference element both sides waist, the angle of these a plurality of first interference elements is arranged in regular turn towards axially reaching radially respectively, and each first interference element waist both sides is separately in abutting connection with an inclined-plane of splaying downwards; And

One slider, dock with fixed block, it opens an embedding hole, this embedding hole peripheral is provided with appearance and measure-alike corresponding to each first interference element position, and second interference element that is the wedge shape reentrant part, each second interference element both sides waist also has an angle, and the angle of this a plurality of second interference elements is respectively towards axially and radially arranging in regular turn, and adjacency one inclined-plane of upwards splaying separately, each second interference element waist both sides.

7. the Cam set assembly that is used for rotating shaft as claimed in claim 6 is characterized in that, wherein this fixed block is identical or different with the angle of two waists of at least two first, second interference elements of slider.

8. the Cam set assembly that is used for rotating shaft as claimed in claim 6 is characterized in that, wherein this fixed block another side periphery or at least one trip of extension part projection.

9. the Cam set assembly that is used for rotating shaft as claimed in claim 8 is characterized in that, wherein this trip is that section is non-circular geometric modelling.

10. the Cam set assembly that is used for rotating shaft as claimed in claim 9 is characterized in that, wherein this geometric modelling is semicircle or rectangle.