CN100532228C

CN100532228C - Impeller

Info

Publication number: CN100532228C
Application number: CNB2005101075519A
Authority: CN
Inventors: 小林悟
Original assignee: Oki Electric Industry Co Ltd
Current assignee: Digital China Jinxin Technology Co., Ltd.
Priority date: 2005-01-28
Filing date: 2005-09-29
Publication date: 2009-08-26
Anticipated expiration: 2025-09-29
Also published as: CN1810616A; JP2006206266A; JP4265544B2

Abstract

The present invention provides an impeller capable of eliminating a load fluctuation in a feed motor by precluding such an occurrence that eventual deformation of its vanes by paper sheet(s) etc. generates a portion where vanes are overlapping and another portion where free of overlapping. The vanes 1a-1d of the impeller 1 are equipped with cuts 1a'-1d' so that the vanes 1a-1d do not overlap when they are deformed by paper sheets 7. Otherwise recesses 11a'-11d' are formed in the vanes 11a-11d of the impeller 11 so that the thickness remain constant even if a deformation of the vanes 11a-11d by the sheets 7 results in overlapping.

Description

Impeller

Technical field

The present invention relates in paper article accumulation mechanism etc., pat the rear end that to send into the paper article in the accumulation storehouse and make them be accumulated in impeller in the accumulation storehouse.

Background technology

Shown in the section drawing of the constructional drawing of Fig. 6 and Fig. 7, use the accumulation mechanism of existing impeller to comprise: the accumulation storehouse 6 of accumulation paper article 7; Feed rolls 2, it rotates along the arrow B direction, to send in the accumulation storehouse 6 along arrow A direction conveyance of sheets class article 7 and with them; Impeller 20, it is used for patting the rear end of paper article 7 and making it accumulation to accumulation storehouse 6 accumulation paper articles 7 time; Pressure roller 3, it is along the rotation of arrow C direction, to exert pressure to feed rolls 2; And formation is sent into paper article 7 the following guide member 4 and the last guide member 5 (for example, referring to patent documentation 1) of the guiding part in the accumulation storehouse 6.

As shown in Figure 7, impeller 20 and feed rolls 2 are installed on the axle 2a that is driven by not shown drive division rotation, and, along the direction rotation of arrow B among Fig. 6.

As shown in Figure 8, use following structure as impeller 20, wherein, in order positively to pat the rear end of paper article 7, blade 20a～20d has certain length, and be radial arrangement 4 or 8 in the mode of patting paper article according to certain time interval with the angle of equalization, and material is that rubber etc. has flexual material (for example, referring to patent documentation 2).

According to above structure, when paper article 7 is being carried between guide member 4 and the last guide member 5 down along the arrow B direction, arrival is during along the impeller 20 of arrow B direction rotation, as shown in Figure 6, impeller 20 is owing to paper article 7 is out of shape, simultaneously, pressure roller 3 and feed rolls 2 are together towards accumulation storehouse 6 conveyance of sheets class article 7, when leaving aforementioned feed rolls 2, collect paper article 7 in the accumulation storehouse successively the rear end that utilizes the restoring force of the impeller 20 of distortion to pat paper article 7.

Patent documentation 1: the spy opens the 2000-302312 communique

Patent documentation 2: special fair 07-98605 communique

Summary of the invention

But, in the impeller 20 of above existing accumulation mechanism, owing to blade 20a～20d has certain length for the rear end of patting paper article 7, so when paper article 7 arrives impeller 20, when blade 20a～20d was out of shape owing to paper article 7, the underlapped part of the overlapping partial sum of blade 20a～20d can appear.

Therefore, the alternation in weight that drives the not shown motor etc. of feed rolls 2 becomes big, and the rotating speed of motor is non-constant, thereby produces the unstable phenomenon of rotation, in using the situation of stepper motor etc., can cause the imbalance of motor, and the bad problem of accumulation appears in the result.

The present invention adopts following structure in order to solve foregoing problems.That is, in the impeller that is provided with a plurality of blades that have pliability and be out of shape owing to load, the portion that dodges of the blade contact of discord adjacency when aforementioned blade is provided with distortion.

According to impeller of the present invention, get along well in abutting connection with the portion that dodges of blade contact when blade is provided with distortion, and have certain thickness, so can make the load on the drive sources such as being applied to motor keep certain, imbalance in the time of can preventing to rotate unstable and use stepper motor, thus the accumulation that prevents medium is bad.

Description of drawings

Fig. 1 is the pie graph of the accumulation mechanism of embodiment 1.

Fig. 2 is the constructional drawing of the impeller of embodiment 1.

Fig. 3 is the constructional drawing of blade of the impeller of embodiment 1.

Fig. 4 is the constructional drawing of the impeller of embodiment 2.

Fig. 5 is the constructional drawing of blade of the impeller of embodiment 2.

Fig. 6 is the existing pie graph of accumulating mechanism.

Fig. 7 is the existing pie graph (X-X ' section drawing) of accumulating mechanism.

Fig. 8 is the constructional drawing of existing impeller.

[nomenclature]

1,11, the 20-impeller, 1a～1d, 11a～11d, 20a～20d one blade, 1a '～1d '-notch, 11a '～11d '-recess, the 2-feed rolls, the 2a-axle, 6-accumulates storehouse, 7-paper article

The specific embodiment

Below, utilize the description of drawings embodiments of the invention.In addition, common element uses identical symbol in the accompanying drawing.

[embodiment 1]

The impeller of embodiment 1 is provided with notch on each blade of impeller, even under the state that is out of shape owing to paper article 7, blade does not have overlapping part.

As shown in Figure 1, the accumulation mechanism with impeller of embodiment 1 comprises: the accumulation storehouse 6 of accumulation paper article 7; Feed rolls 2, it rotates along the arrow B direction, sends in the accumulation storehouse 6 along arrow A direction conveyance of sheets class article 7 and with them; Impeller 1, it is used for patting the rear end of paper article 7 and making it accumulation to accumulation storehouse 6 accumulation paper articles 7 time; Pressure roller 3, it is exerted pressure to feed rolls 2 along the rotation of arrow C direction; And formation is sent into paper article 7 the following guide member 4 and the last guide member 5 of the guiding part of using in the accumulation storehouse 6.

Impeller 1 and feed rolls 2 are installed on the axle 2a that is driven by not shown drive division rotation, and, rotate along the direction shown in the arrow B.

Fig. 2 is the diagram of the shape of the impeller 1 of expression embodiment 1.As shown in the drawing, blade 1a～1d has following shape, that is, the width of the leading section of impeller 1 is narrow, and the width of central side is big, and offers porose on its part.And the width W 1 of leading section is littler than the width W 2 of aforementioned apertures.

According to above structure, the accumulation mechanism with impeller of embodiment 1 works as follows.Promptly, when paper article 7 is being carried between guide member 4 and the last guide member 5 down along the arrow A direction, and as shown in Figure 1, arrival is during along the impeller 1 of arrow B direction rotation, and impeller 1 is owing to paper article 7 is out of shape, simultaneously, pressure roller 3 and feed rolls 2 are together towards accumulation storehouse 6 conveyance of sheets class article 7, when leaving aforementioned feed rolls 2, collect them in the accumulation storehouse successively the rear end that utilizes the restoring force of the impeller 1 of distortion to pat paper article 7.

As mentioned above, when paper article 7 be in by feed rolls 2 send into the accumulation storehouse 6 state the time, though the blade 1a～1d of impeller 1 is owing to paper article 7 is out of shape, but, for example as shown in Figure 3, when blade 1b in blade 1a side distortion and when overlapping, the front end of blade 1b is contained among the notch 1a ' of blade 1a, blade does not overlap one another.And, similarly, when blade 1c in blade 1b side distortion and when overlapping, the front end of blade 1c is contained among the notch 1b ' of blade 1b, blade does not overlap one another.The situation of other blade too.

Therefore, the thickness between pressure roller 3, the feed rolls 2 is always constant, thereby can make the load substantially constant of the not shown motor that drives them etc., can prevent to rotate imbalance unstable and when using stepper motor.

(effect of embodiment 1)

As above detailed description, impeller 1 according to embodiment 1, on each blade 1a～1d of impeller 1, be provided with and dodge the 1a ' of portion～1d ', under the state that is out of shape because of paper article 7, blade 1a～1d does not have overlapping part, so can keep being applied to the load on motor etc. consistently, the imbalance that can prevent to rotate shakiness and stepper motor etc., thus the accumulation that can prevent medium is bad.

[embodiment 2]

The impeller of embodiment 2 is provided with the portion of dodging on each blade, because paper article makes that under the situation of each deformable blade, overlapping thickness is certain.

The cross sectional drawing of the impeller 11 of embodiment shown in Fig. 42, shown in Fig. 5 as the structure of the blade 11a of a blade of impeller 11.The structure of other blade 11b～11d is identical.As shown in the drawing, on each blade 11a～11d, be provided with recess 11a '～11d ', and the width W 3 of the leading section of each blade 11a～11d is littler than the width W 4 of aforementioned recess 11a '～11d '.

In the accumulation mechanism of impeller 11 with embodiment 2, when paper article 7 be in by feed rolls 2 send into the accumulation storehouse 6 state the time, though the blade 11a～11d of impeller 11 is owing to paper article 7 is out of shape, but, for example, as shown in Figure 4, when axle 2a rotates, makes blade 11b when blade 11a side (arrow D direction) is out of shape by paper article 7 along the B direction, the front end of blade 11b is contained among the recess 11a ' of blade 11a, so always keep certain thickness.Similarly, when blade 11c to blade 11b side distortion and when overlapping, the front end of blade 11c is contained among the recess 11b ' of blade 11b, forms identical thickness.

Therefore, the same with embodiment 1, the thickness between pressure roller 3, the feed rolls 2 is always constant, thereby can make the load substantially constant of the not shown motor that drives them etc., the imbalance in the time of preventing to rotate shakiness and use stepper motor.

(effect of embodiment 2)

As above detailed description, according to the impeller of embodiment 2, owing on each blade, be provided with the portion of dodging, so obtain the effect identical with embodiment 1.

[other variation]

In the explanation of the foregoing description, though be that example is illustrated, lack also passablely than 4 with the situation of 4 blades, in the impeller that has more than 4 blade, equally also can be provided with notch or recess.

In above-described embodiment, though the impeller in the accumulation mechanism of paper article is illustrated, the invention is not restricted to paper article, also can be widely used for the accumulation of card shape medium or book shape medium etc.

Claims

1. impeller, its be provided with a plurality of have pliability and since the blades that load is out of shape it is characterized in that: the portion that dodges that the blade of discord adjacency contacted when aforementioned blade was provided with distortion.

2. impeller as claimed in claim 1 is characterized in that: the aforementioned portion of dodging is the notch that is arranged on the blade.

3. impeller as claimed in claim 1 is characterized in that: the aforementioned portion of dodging is the recess that is arranged on the blade.