CN2915797Y

CN2915797Y - Driven wheel fixing mechanism of paper feeding device

Info

Publication number: CN2915797Y
Application number: CN 200620116148
Authority: CN
Inventors: 刘俊良; 刘仁杰
Original assignee: Lite On Technology Corp
Current assignee: Lite On Technology Corp
Priority date: 2006-05-18
Filing date: 2006-05-18
Publication date: 2007-06-27
Anticipated expiration: 2016-05-18

Abstract

A driven wheel fixing mechanism of paper feeding device, the paper feeding device has at least one driven wheel and one axis pole, the axis pole is assembled on the driven wheel, the driven wheel fixing mechanism includes a base, a concave on the top surface of the base has a contain groove and a through-hole, the contain groove has a back sidewall, a bottom sidewall and two corresponding sidewalls, the bottom sidewall is adjacent to the back sidewall each other, each sidewall has a runner hole respectively. The axis pole can drill through the two runner hole which inside the base, and arrive to the contain groove, thus the driven wheel also get across the through-hole and is popped out the top surface. A flexible groupware is assembled between the axis pole and the back sidewall so as to help the axis pole to slide follows the runner hole and to make use of the elasticity of the flexible groupware to ensure the driven wheel can be popped out unvaryingly the top surface of the base.

Description

The flower wheel fixed mechanism of paper carrier

Technical field

The utility model relates to a kind of paper carrier, particularly a kind of flower wheel fixed mechanism that is applied in the paper carrier.

Background technology

Because the progressive day by day prosperity that adds commercial affairs of photoelectricity science and technology, chopping machine, scanner, duplicator and multifunctional paper feeding machine (Multi-Function Peripheral, product such as MFP), make field of application be popularized for individual family and student group with cheap price and practicality, change the document processing equipment that popular daily life is used gradually into by office.

Devices such as aforesaid chopping machine, scanner, duplicator and multifunctional paper feeding machine all possess a paper carrier, in order to pending paper document is sent to the operating area, for processing.Generally speaking, the paper feed roller set of paper carrier possesses several driving wheels and flower wheel is arranged, and is arranged at the two side faces of paper feed track, and driving wheel can be driven by external power supply, advances and transmit paper.And flower wheel can be used to cooperate with driving wheel, so that paper clamp is placed between driving wheel and the flower wheel, makes the enough friction force of generation between driving wheel and the paper, and can transmit paper.Flower wheel also can be separately set in the side of paper feed track, paper is not directly contacted, so that paper advances in the paper feed track swimmingly with the side direct friction of paper paper feed track.

In view of the demand, flower wheel must produce a positive force to paper, just can make the enough friction force of generation between driving wheel and the paper, and make flower wheel be driven and rotate by paper.Therefore common mode is exactly that axostylus axostyle with flower wheel is arranged in the pedestal of paper carrier versatilely, by the elastic force of a spring, passes axostylus axostyle and flower wheel.Yet the flower wheel mounting structure in the chart drive assembly of prior art, is locked in plate on the pedestal behind the medial surface fixing spring and flower wheel by pedestal with metal sheet or plastic plate again, causes manufacturing cost raising and assembling procedure complicated.

As shown in Figure 1, another kind of flower wheel fixed sturcture 10 in order to improve above-mentioned restriction, to develop then.As shown in the figure, support portion 11 is arranged on the chart drive assembly, has opening 12 thereon, axostylus axostyle 13 passes opening 12 and places on the support portion 11, and flower wheel 14 is placed on the axostylus axostyle 13, to contact with the driving wheel (not shown) of paper carrier, spring 15 is installed in axostylus axostyle 13 belows, and closely be resisted against axostylus axostyle 13, to provide axostylus axostyle 13 positive forces, return idler 14 is contacted with driving wheel.

But because spring 15 is installed on the below of axostylus axostyle 13, if need loading and unloading spring 15 earlier axostylus axostyle 13 to be unloaded, cause flower wheel fixed sturcture 10 to load and unload easily and apace, therefore assembling speed on manufacturing line and the time of keeping in repair all will prolong, and productive costs also relatively increases.

And the installation position of flower wheel fixed sturcture 10 medi-springs 15 of prior art can't be adjusted, the mostly past invalid directive effect of the positive force that so may cause spring to produce, do not cause the usefulness of spring good and put on the axostylus axostyle 13 because of the application force of application of force inequality, the positive force deficiency that 14 pairs of paper of flower wheel are applied, making flower wheel 14 can't be subjected to paper drives and rotates, even and paper between form the state of cliding friction, and cause paperboard or make the impaired generation folding line of paper.

Summary of the invention

Because the package program complexity of the flower wheel fixed sturcture 10 in the paper carrier of prior art, and the positive force that 14 pairs of paper of flower wheel produce is wayward, causes guiding the poor effect of paper.In view of above problem, the purpose of this utility model is to provide a kind of flower wheel fixed sturcture, can simplify package program, and can make flower wheel that paper is produced enough positive forces.

Therefore, for achieving the above object, the disclosed a kind of flower wheel fixed mechanism of the utility model is applied on the paper carrier, and this paper carrier has at least one flower wheel and is arranged in the flower wheel axostylus axostyle of flower wheel.Flower wheel fixed mechanism of the present utility model includes a pedestal, axostylus axostyle is arranged among the pedestal, wherein an end face of this pedestal is concaved with a storage tank and an open-work, storage tank has a rear wall, a downside wall and two relative lateral sidewalls, downside wall and rear wall adjoin each other, lateral sidewall has a chute hole respectively, and the flower wheel axostylus axostyle passes in two chute holes, makes flower wheel protrude in end face by open-work; And an elastic parts, being arranged in the storage tank, an end of elastic parts is resisted against the flower wheel axostylus axostyle of paper carrier, and the other end is resisted against the rear wall of storage tank.

Wherein, the flower wheel fixed mechanism can be convexly equipped with a projection in rear wall, uses so that an end of elastic parts is sheathed on projection and is resisted against rear wall; Also can on storage tank, cover a lid, elastic parts is folded between lid and the downside wall.

Effect of the present utility model is to simplify the assembling procedure of flower wheel fixed mechanism, effectively provides positive force and cost-cutting between paper and roller.

The disclosed flower wheel fixed mechanism of the utility model only is installed in the storage tank of pedestal with elastic parts and lid, can provide a positive force to flower wheel, reduces complexity and required time of assembling procedure in the assembling.

Flower wheel fixed mechanism of the present utility model, its elastic parts pushes against the direction that enters the end face of paper carrier in the direction of flower wheel axostylus axostyle perpendicular to paper, and the bearing of trend of the chute hole of lateral sidewall is perpendicular to the direction of paper by end face, therefore the positive force that elastic parts is produced acts on the flower wheel axostylus axostyle fully, and does not produce invalid component.

For making this later-model purpose, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 is the roller location structure schematic perspective view of the chart drive assembly of prior art;

Fig. 2 is the decomposing schematic representation of the utility model one embodiment;

Fig. 3 is that decomposing schematic representation is amplified in the part of the utility model one embodiment;

Fig. 4 is the schematic perspective view of the utility model one embodiment;

Fig. 5 is the cross sectional side view of the utility model one embodiment; And

Fig. 6 is the cross sectional side view of another embodiment of the present utility model.

Wherein, Reference numeral

10 flower wheel fixed sturctures, 11 support portions

12 openings, 13 axostylus axostyles

14 flower wheels, 15 springs

100 flower wheel fixed mechanisms, 110 pedestals

111 end faces, 112 open-works

120 flower wheels, 121 axostylus axostyles

130 storage tanks, 131 openings

132 rear wall 132a projections

133 lateral sidewalls, 134 downside walls

135 chute holes, 136 blocking slotted eyes

140 elastic partss, 150 lids

151 trips

The specific embodiment

According to the disclosed flower wheel fixed mechanism of the utility model, can be applicable to the paper carrier of equipment such as facsimile apparatus, duplicator, affairs machine or scanner, and in following detailed description of the present utility model, will be with automatic paper feeder as most preferred embodiment of the present utility model.Yet shown in accompanying drawing only provide with reference to and the explanation usefulness, be not in order to the restriction the utility model.

See also Fig. 2 and shown in Figure 3, the disclosed flower wheel fixed mechanism 100 of the utility model one embodiment is applied to a paper carrier, and this paper carrier has at least one flower wheel 120 and is arranged in the axostylus axostyle 121 of flower wheel 120.With the utility model is example, and paper carrier of the present utility model has three flower wheels 120, and axostylus axostyle 121 is arranged in the central axis of three flower wheels 120 simultaneously, three flower wheels 120 is fixed on the axostylus axostyle 121 forms continuous action relation.

Flower wheel fixed mechanism 100 includes a pedestal 110, several elastic partss 140 and several lids 150.Wherein, pedestal 110 is corresponding to the paper feed track of paper carrier one side of (figure does not show), and the end face 111 of pedestal 110 is arranged with one or more than one storage tank 130.With the present embodiment is example, and pedestal 110 has two storage tanks 130, and each storage tank 130 has an opening 131, a rear wall 132, two lateral sidewalls 133 that face one another and a downside wall 134 respectively.

Wherein convex with a projection 132a on the rear wall 132, two lateral sidewalls 133 are corresponding to the relative dual side-edge edge of opening 131, each lateral sidewall 133 offers a chute hole 135 and a blocking slotted eye 136 respectively, wherein the bearing of trend of chute hole 135 is perpendicular to the direction of paper by end face 111, and blocking slotted eye 136 is connected with chute hole 135.Axostylus axostyle 121 is movably set in the pedestal 110, and it passes storage tank 130 by chute hole 135, and axostylus axostyle 121 can be radially slided along it in chute hole 135.Rear wall 132 is adjacent to each other with downside wall 134, and downside wall 134 is perpendicular to the moving direction of paper.

Be provided with several open-works 112 on the end face 111 of pedestal 110 simultaneously, correspond respectively to each flower wheel 120, when being movably set in the pedestal 110 to pass storage tank 130 when axostylus axostyle 121, the some of flower wheel 120 is embedded in the pedestal 110, another partly protrudes in the end face 111 of pedestal 110.

The number of elastic parts 140 is corresponding to the number of storage tank 130, and it can be compression spring.Be respectively arranged with an elastic parts 140 in each storage tank 130, wherein an end of elastic parts 140 is sheathed on projection 132a and is resisted against the rear wall 132 of storage tank 130, the other end is resisted against axostylus axostyle 121, makes flower wheel 120 protrude in the end face 111 of pedestal 110 consistently so that a positive force to be provided.In addition, because bearing of trend and the elastic parts 140 compressed directions of projection 132a, a vertical paper is by the direction of end face 111, the direction that makes elastic parts 140 pushing and pressing axostylus axostyles 121 is also perpendicular to the direction of a paper by end face 111, the positive force that elastic parts 140 is produced, put on fully on the axostylus axostyle 121, and do not produce invalid component.

Please be simultaneously with reference to Fig. 4 and shown in Figure 5, also corresponding to the number of storage tank 130, each lid 150 is covered in the opening 131 of storage tank 130 respectively to the number of lid 150, with sealing storage tank 130.Each lid 150 has two trips 151 respectively, can embed the blocking slotted eye 136 of storage tank 130 2 lateral sidewalls 133 respectively, and lid is fixed in the opening 131 of storage tank 130.Lid 150 also can produce position-limiting actions jointly with 134 pairs of elastic partss of downside wall 140 of storage tank 130, makes elastic parts 140 is folded between the two, and elastic parts can not changed and make it go out force direction because of deformation in compression, avoids invalid component to produce.

As shown in Figure 6, also can save the design of projection 132a, by cooperating of downside wall 134 and lid 150, make elastic parts 140 be defined to the desired location and do not come off, and be resisted against rear wall 132 and axostylus axostyle 121 with its two end.

By above-mentioned combination, flower wheel 120 can apply an elastic force to axostylus axostyle 121 consistently by elastic parts 140, and protrude in the end face 111 of pedestal 110 via open-work 112, and the paper by end face is produced a positive force, make the relation that forms wipe contact between paper and the flower wheel 120, rotate and drive flower wheel 120, so that paper moves smooth-goingly.

In addition, flower wheel fixed mechanism 100 described in the utility model does not need to dismantle axostylus axostyle 121 earlier can install, dismantle elastic parts 140, and elastic parts 140 compressed directions, be a vertical relation with the paper moving direction, so the positive force that elastic parts 140 is produced can be acted on fully on the flower wheel 120, reduce the generation of invalid component, improve the hypodynamic phenomenon of friction between paper and the flower wheel 120.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1, a kind of flower wheel fixed mechanism of paper carrier is applied to a paper carrier, and this paper carrier has an at least one flower wheel and an axostylus axostyle, and this axostylus axostyle is located at the axle center of this flower wheel, it is characterized in that, this flower wheel fixed mechanism includes:

One pedestal, this axostylus axostyle is arranged among this pedestal, wherein an end face of this pedestal is concaved with a storage tank and an open-work, this storage tank has a rear wall, a downside wall and two relative lateral sidewalls, this downside wall and this rear wall are adjacent to each other, respectively this lateral sidewall has a chute hole respectively, and this axostylus axostyle passes in this two chute hole, makes this flower wheel protrude in this end face by this open-work; And

One elastic parts is arranged at this storage tank, and an end of this elastic parts is resisted against this axostylus axostyle, and the other end is resisted against the rear wall of this storage tank.

2, the flower wheel fixed mechanism of paper carrier according to claim 1 is characterized in that, this rear wall convexes with a projection, and an end of this elastic parts is sheathed on this projection and is resisted against this rear wall.

3, the flower wheel fixed mechanism of paper carrier according to claim 1 is characterized in that, also includes a lid, is covered in this storage tank, and this elastic parts is folded between this lid and this downside wall.

4, the flower wheel fixed mechanism of paper carrier according to claim 1 is characterized in that, this elastic parts is a compression spring.

5, the flower wheel fixed mechanism of paper carrier according to claim 1 is characterized in that, this elastic parts pushes against the direction of this axostylus axostyle, perpendicular to the direction of a paper by this end face.

6, the flower wheel fixed mechanism of paper carrier according to claim 1 is characterized in that, the bearing of trend of this chute hole is perpendicular to the direction of a paper by this end face.

7, the flower wheel fixed mechanism of paper carrier according to claim 1 is characterized in that, this downside wall is perpendicular to the direction of a paper by this end face.

8, the flower wheel fixed mechanism of paper carrier according to claim 1 is characterized in that, one of them offers a blocking slotted eye to these lateral sidewalls at least, this lid have one corresponding to this blocking slotted eye in order to embed the trip of this blocking slotted eye.

9, the flower wheel fixed mechanism of paper carrier according to claim 8 is characterized in that, this blocking slotted eye is connected with this chute hole.