JPH0323143A - Sheet feed device - Google Patents

Sheet feed device

Info

Publication number
JPH0323143A
JPH0323143A JP15917289A JP15917289A JPH0323143A JP H0323143 A JPH0323143 A JP H0323143A JP 15917289 A JP15917289 A JP 15917289A JP 15917289 A JP15917289 A JP 15917289A JP H0323143 A JPH0323143 A JP H0323143A
Authority
JP
Japan
Prior art keywords
sheet
elastic body
vibration
elastic bodies
carriage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15917289A
Other languages
Japanese (ja)
Inventor
Masahiko Igaki
正彦 井垣
Yoshibumi Nishimoto
義文 西本
Shigeto Sugimoto
成人 杉本
Eiichi Yanagi
柳 栄一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP15917289A priority Critical patent/JPH0323143A/en
Publication of JPH0323143A publication Critical patent/JPH0323143A/en
Pending legal-status Critical Current

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  • Handling Of Cut Paper (AREA)

Abstract

PURPOSE:To ensure the proper carriage of a sheet regardless of the quality thereof, and retain the sheet without any dislocation upon stopping the carriage by so providing a high friction part as to be flush with a part of the vibration surface of an elastic body. CONSTITUTION:A sheet 15 as a carried body is pressed onto the opposite surface of a fixing part for vibrators 1 to 4 in elastic bodies 5 and 6, ana frequency voltage is applied to the vibrators 1 to 4, thereby generating an ultrasonic vibration on the elastic bodies 5 and 6. A transfer force is transmitted to the sheet 13 via the vibration surfaces of the elastic bodies 5 and 6 subjected to the ultrasonic vibration, thereby carrying the sheet 13. In this case, a rubber like material is filled into the V-grooves 5a and 6a of the elastic bodies 5 and 6 for forming high friction members 101 and 102, and a vibrator exposure surface in contact wit the sheet 14 is kept flush with the surfaces of the aforesaid members 101 and 102. According to the aforesaid construction, a transfer force for the sheet 13 is increased, and carriage efficiency is improved. Also, the sheet 13 is retained without any dislocation, upon stopping the carriage thereof.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、計算機、複写機、ファクシミリ、ワードプロ
セッサ、タイブライタ、その他シート類を送る機構を具
備する各種機械に備えられたシート送り装置、特に超音
波振動を利用したシート送り装置に関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sheet feeding device installed in a computer, a copying machine, a facsimile machine, a word processor, a tie writer, and other various machines equipped with a mechanism for feeding sheets, especially a super This invention relates to a sheet feeding device that uses sonic vibration.

[従来の技術] 従来この種の装置は、特開昭59−177243号公報
に開示されているように、シートを扶持する弾性体に進
行波を形成し、該シートを送るように構成されていた。
[Prior Art] Conventionally, this type of device has been configured to feed the sheet by forming a traveling wave in an elastic body supporting the sheet, as disclosed in Japanese Patent Laid-Open No. 59-177243. Ta.

ここで、前記提案におけるシート搬送原理について第3
図を用いて説明する. 弾性体11及び12により、シ一ト13は適度の押圧で
扶持されている.iJ性体it,12にはそれぞれ進行
性の曲げ振!(進行波)が形成されており、これら進行
波の位相差は空間的に180”になるように構威されて
いるので、それぞれの弾性体11.12の曲げ振動はシ
一ト13側に各々の凸部分が常に対向するように進行す
る。このとき、弾性体11.12の表面の、例えば凸部
分のある質点に注目すると、該貢点は一般には楕円軌道
を描く運動をする。第3図中において、弾性体1lにつ
いて言えば、進行波が右方向へ進む場合、上記買点は図
に示したように時計回りの楕円軌跡を描くことになる.
したがって、凸部の賀点の運動方向は弾性体11.12
いずれも振動の進行方向とは逆方向となり、これがシ一
ト13を移送する力として働くことCなる. 一方、凹部においては、進行方向と同方向のシート移送
力が発生するが、凸部に比較して圧力が小さいので、シ
一ト13と弾性体11.12の摩擦力は小さく、シート
移送力も小さくなるので、シート移送力の総和としては
、前述した曲げ振動の進行方向とは逆方向に働くことに
なる. 第4図は前述の如きシート移送力を発生する装置の一例
を示すものであり、図中、11.12及び13は前述し
た弾性体及びシートである.又、14−1. 14−2
、15−1 (不図示) , 15−2は前記弾性体1
1.12上に固着された振動子、16は抑圧支持部材、
17−1. 17−2は支持側板、18は底板である. 弾性体12は底板18により支持され、弾性体11は押
圧支持部材16により支持されている.また該弾性体1
1は前記押圧支持部材16の有するバネ性により、シ一
ト13を適当な力で押圧して前記弾性体12と共に該シ
一ト13を扶持している.弾性体11.12に各々の振
動子にある周波電圧が印加されて振動が加えられること
により、前述の如く各々の凸部が常に対向するようにな
っているので、シート移送力が発生し、図中矢印の方向
へのシート搬送が行われる.尚図中矢印は両方向を指し
ているが、これは振動の進行方向を切り換えることによ
ってシート搬送の方向を反転できることを意味している
. 第5図及び第6図は、振動体を別の構威により実現した
装置の一例(主要部分のみ示してある)を示すものであ
る. 第5図はトラック状の振動子19−1. 19−2が固
着されk同じくトラック状の弾性体2G−1. 2(1
−2によりシ一ト13を扶持する構成であり、振動子1
9−1. 19=2への周波電圧印加により弾性体2G
−1. 20−2に進行性の曲げ振動を形成することに
より、シート移送力を発生させる点は、前記第4図図示
装置と同様である. 第6図は第5図図示装置のシート給送方向から見た弾性
体の断面図で、左右で段差を設けている.これは、弾性
体20−1. 20−2の左側と右側でシート移送力の
方向が逆向きに働いている為、逆向きとなる側(第6図
中右側)の移送力をシート13に働かせないようにする
kめである. ところで、上記の様な従来装置においては、弾七体のシ
ートと接触する面は鏡面もしくはそれに準ずる面もしく
は弾性体のシートと接触する面全部をゴム状物質で覆っ
た面としていた.[発明が解決しようと・している課題
〕しかしながら、上記従来例において、弾性体のシート
と接触する面を鏡面もしくはそれに準ずる面とした場合
、以下のような問題があった。
Here, we will discuss the third principle of sheet conveyance in the above proposal.
Explain using a diagram. The seat 13 is supported by the elastic bodies 11 and 12 with moderate pressure. Progressive bending vibration for iJ sex body it, 12 respectively! (traveling waves) are formed, and the phase difference of these traveling waves is spatially arranged to be 180", so the bending vibration of each elastic body 11 and 12 is transmitted to the seat 13 side. The convex portions of the respective convex portions always move in opposition to each other. At this time, if we pay attention to, for example, a mass point on the surface of the elastic body 11, 12 where the convex portion is located, the tributary point generally moves in an elliptical orbit. In Figure 3, regarding the elastic body 1l, if the traveling wave moves to the right, the buying point will draw a clockwise elliptical locus as shown in the figure.
Therefore, the direction of movement of the point of the convex portion is the elastic body 11.12
In both cases, the direction is opposite to the direction of vibration, and this acts as a force to transport the sheet 13. On the other hand, in the concave portion, a sheet transporting force is generated in the same direction as the traveling direction, but the pressure is smaller than that in the convex portion, so the frictional force between the sheet 13 and the elastic body 11, 12 is small, and the sheet transporting force is also small. Therefore, the total sheet transport force acts in the opposite direction to the direction of the bending vibration described above. FIG. 4 shows an example of a device for generating the sheet conveying force as described above, and in the figure, reference numerals 11, 12 and 13 are the elastic body and sheet described above. Also, 14-1. 14-2
, 15-1 (not shown), 15-2 are the elastic bodies 1
1. A vibrator fixed on 12, 16 a suppression support member,
17-1. 17-2 is a support side plate, and 18 is a bottom plate. The elastic body 12 is supported by a bottom plate 18, and the elastic body 11 is supported by a pressing support member 16. Also, the elastic body 1
1 supports the sheet 13 together with the elastic body 12 by pressing the sheet 13 with an appropriate force due to the spring properties of the pressing support member 16. By applying a certain frequency voltage to each vibrator and applying vibration to the elastic bodies 11 and 12, the convex portions are always opposed to each other as described above, so a sheet conveying force is generated. The sheet is transported in the direction of the arrow in the figure. The arrows in the figure point in both directions, which means that the direction of sheet conveyance can be reversed by switching the direction of vibration. Figures 5 and 6 show an example of a device (only the main parts are shown) in which the vibrating body is realized using a different structure. FIG. 5 shows a track-shaped vibrator 19-1. 19-2 is fixed to the same track-shaped elastic body 2G-1. 2(1
-2 supports the sheet 13, and the vibrator 1
9-1. By applying a frequency voltage to 19=2, the elastic body 2G
-1. This apparatus is similar to the apparatus shown in FIG. 4 in that the sheet conveying force is generated by creating progressive bending vibration in the apparatus 20-2. FIG. 6 is a cross-sectional view of the elastic body as seen from the sheet feeding direction of the device shown in FIG. 5, with a step provided on the left and right sides. This is the elastic body 20-1. Since the direction of the sheet conveying force is acting in opposite directions on the left and right sides of 20-2, the purpose is to prevent the conveying force from the opposite direction (the right side in FIG. 6) from acting on the sheet 13. By the way, in the conventional device as described above, the surface of the bullet that comes into contact with the sheet is a mirror surface or a similar surface, or the entire surface that comes into contact with the elastic sheet is covered with a rubber-like substance. [Problems to be Solved by the Invention] However, in the conventional example described above, when the surface of the elastic body that comes into contact with the sheet is a mirror surface or a similar surface, there are the following problems.

(l)゛シ一トとの摩擦係数が低く、よって移送力が小
さく、且つ効率の面にも難があった.(2)シートが樹
脂フイルム等の鏡面に近いものであった場合、吸着現象
を起こし、搬送不能になることがあった. 《3)シート停止時の保持力が弱い. また、シートと接触する面の全面をゴム状物質で覆っk
弾性体を用いた場合、ゴム状物質が厚くなってしまうと
進行波の凹部にシートが接触し、シートが搬送不能とな
る事があった。さらに、振動性能上、ゴム状物質部での
減衰が大きいため、好ましいものではなかった.本発明
の目的は、シートの性状に関係なくシートを確実に搬送
でき、しかも搬送停止時にシートをズレなく保持できる
超音波振動を利用したシート送り装置を提供することに
ある.[課題を解決するための手段及び作用]本発明の
目的を達成するための要旨とするところは、弾性体のシ
ートと接触する面、すなわち振動面の一部を例えばゴム
状物質からなる高摩擦部とする事により、該弾性体とシ
ートとの摩擦係数を大きくし、また、高摩擦部の表面と
振動面とを一致させることにより進行波の凹部がシート
と接触する事がなく、凸部の質点の運動方向の力を効率
よく、働かせる様にしたものである. また、シートを搬送させない時には、高摩擦部との接触
により、シートが外力等Cより位置ずれしない様なシー
ト保持力も向上するようにしたものである. [実 施 例] 以下、本発明を図示の実施例(基づいて詳細に説明する
. 実施例1 第1図(a)は本発明の実施例1を示すものであり、1
,2,3.4は圧電素子からなる振動子、5.6は弾性
体、7は周波電圧を前記振動子1〜4に印加する発振器
、8はエネルギー吸収部である. 振動子1.2は弾性体5に接着剤等で固着されている.
同様に、振動子3.4は弾性体6に接着剤等で固着され
ている.また、弾性体5と6は適当な力で押えられてい
る.本実施例では、弾性体5と6が導電体として接地回
路に接続されており、発振器7により振動子1に周波電
圧(交流電界)を印加することにより該弾性体5と6に
振動が発生する.振動子2と4は前記弾性体5と6の振
動に伴い発電する.その発電された電気エネルギーは抵
抗などから成るエネルギー吸収部8により散逸させられ
る。よってその振動は反射されずに進行波となる。弾性
体5.6の曲げ振動が進行波となるとき、その表面の1
点に注目すると、その軌跡は前述したようじ楕円を描い
ている.したがって、曲げの外側の部分は常に進行波の
進行方向と逆向きの速度威分を持つことになり、シ一ト
13は常に曲げの外側の部分と接触するために、進行波
の進行方向とは逆向きに送られる、第1図においては、
左から右へシ一ト13は送られる。
(l) The coefficient of friction with the sheet was low, so the transfer force was small, and there were also problems in terms of efficiency. (2) If the sheet was made of something close to a mirror surface, such as a resin film, an adsorption phenomenon could occur, making it impossible to convey the sheet. 《3) The holding force when stopping the seat is weak. In addition, the entire surface that comes into contact with the sheet is covered with a rubber-like substance.
When an elastic material is used, if the rubber-like material becomes thick, the sheet may come into contact with the concave portion of the traveling wave, making it impossible to convey the sheet. Furthermore, in terms of vibration performance, the damping in the rubbery material part was large, which was not desirable. SUMMARY OF THE INVENTION An object of the present invention is to provide a sheet feeding device using ultrasonic vibration that can reliably transport a sheet regardless of its properties and can hold the sheet without shifting when the sheet is stopped. [Means and operations for solving the problems] The gist of the present invention is to make a part of the surface of the elastic body that comes into contact with the sheet, that is, the vibrating surface, made of a high-friction material such as a rubber-like material. By making it a part, the coefficient of friction between the elastic body and the sheet is increased, and by making the surface of the high friction part coincide with the vibration surface, the concave part of the traveling wave does not come into contact with the sheet, and the convex part It is designed to efficiently apply force in the direction of motion of the mass point. Furthermore, when the sheet is not conveyed, contact with the high-friction portion improves the sheet holding power so that the sheet does not shift due to external force C. [Example] The present invention will be described in detail below based on the illustrated example. Example 1 FIG. 1(a) shows Example 1 of the present invention.
, 2, 3.4 are vibrators made of piezoelectric elements, 5.6 is an elastic body, 7 is an oscillator that applies a frequency voltage to the vibrators 1 to 4, and 8 is an energy absorption section. The vibrator 1.2 is fixed to the elastic body 5 with adhesive or the like.
Similarly, the vibrator 3.4 is fixed to the elastic body 6 with adhesive or the like. Furthermore, the elastic bodies 5 and 6 are held down with an appropriate force. In this embodiment, the elastic bodies 5 and 6 are connected to the ground circuit as conductors, and when a frequency voltage (AC electric field) is applied to the vibrator 1 by an oscillator 7, vibrations are generated in the elastic bodies 5 and 6. do. The vibrators 2 and 4 generate electricity as the elastic bodies 5 and 6 vibrate. The generated electrical energy is dissipated by an energy absorbing section 8 made of a resistor or the like. Therefore, the vibration becomes a traveling wave without being reflected. When the bending vibration of the elastic body 5.6 becomes a traveling wave, 1 of the surface of the elastic body 5.6 becomes a traveling wave.
If you pay attention to the point, its trajectory will draw the toothpick ellipse mentioned above. Therefore, the outer part of the bend always has a velocity force in the opposite direction to the traveling direction of the traveling wave, and the seat 13 always contacts the outer part of the bend, so is sent in the opposite direction, in Figure 1,
Sheet 13 is sent from left to right.

ところで、実験の結果より、弾性体5.6の表面は前述
の如く鏡面であることは好ましくないことが分かつてい
る.本実施例は、弾性体5と6の表面に、弾性体5.6
に形成される進行波の波長をλとしたとき,1/10λ
をピッチとするV字溝5a,6aを進行波の進行方向に
対し直角な方向へ複数設け、そのV字溝5a,6aへゴ
ム状物質を充填して高摩擦部101, 102を形成し
ており、シ一ト13と接触する振動体露出面とゴム状物
質からなる高摩擦部lot, 102の表面とをそろえ
るようにしており、第1図(b)に弾性体6を図示して
いる. すなわち、第2図に示すように、弾性体5.6の表面は
一部に高摩擦部101, 102が設けられているため
に、シート移送力が増加して搬送効率の向上が図れ、ま
た樹脂フィルム等のような表面が鏡面状のものの場合で
も、高摩擦部101.102との接触部では吸着がなく
全体としてこの種のシートの吸着現象の発生を防ぐこと
ができる. また、高摩擦部101, 102の表面は弾性体5,6
の表面と一致しているので、振動時における弾性体5.
6の凸部は確実にシ一ト13に圧接され、シートの移送
不良が生じない. さらに、シートの移送停止時には、高摩擦部101, 
102との接触によりシートの保持力が向上し、シート
が外力等Cより位置ずれすることが防がれる. 実施例2 第7図は、本発明の実施例2を示すものであり、弾性体
6のシートと接触する面に、進行波の進行方向に沿って
v字溝6aを複数設け、同様に溝部へゴム状物質を充填
して高摩擦部102゜を形成したもので、シートと接触
する振動体露出面とゴム状物質からなる高摩擦部102
゜の面とをそろえるようにしており、図示していないが
上側に位置する弾性体5の表面も同様の構造としている
. 実施例3 第8図は実施例3を示すものであり、弾性体の進行波の
進行方向に関係なく、弾性体6の表面にランダムに円錐
状のクボミ61を設け、そこにゴム状物質を充填して高
摩擦部102”を設けたものである.なお、高摩擦部1
02”の表面と弾性体の表面とを一致させている. 実施例4 第9図は実施例4を示している.本実施例は、弾性体9
.10の表面に、振動効果を高めるために複数の振動片
9a, 10aを設けて櫛歯形状とし、その振動片9a
. leaのシートと接触する面に進行波の進行方向に
対し直角な方向へV字溝9b, 10bを設け、そのv
字溝9b. 10b ヘゴム状物質を充填して高摩擦部
101. 102を形成したもので、シートと接触する
振動体の露出面とゴム状物質からなる高摩擦部101.
, 1G2とをそろえるようにしている. [発明の効果] 以上説明したように、本発明によれば、弾性体のシート
と接触する面、すなわち振動面の一部に例えばゴム状物
賞からなる高摩擦を設け、その面位置を同じとすること
により、 ■ シートの移送力及び効率を向上させる事ができる. ■ 広範な材質のシートを送る事が可能となる. ■ シート停止時の保持力が向上する.等の効果がある
By the way, from the results of experiments, it has been found that it is not preferable for the surface of the elastic body 5.6 to have a mirror surface as described above. In this embodiment, elastic bodies 5 and 6 are provided on the surfaces of elastic bodies 5 and 6.
When the wavelength of the traveling wave formed in is λ, 1/10λ
A plurality of V-shaped grooves 5a, 6a with a pitch of The exposed surface of the vibrating body that contacts the seat 13 is aligned with the surface of the high friction part 102 made of a rubber-like substance, and the elastic body 6 is illustrated in FIG. 1(b). .. That is, as shown in FIG. 2, the surface of the elastic body 5.6 is partially provided with high-friction parts 101 and 102, so that the sheet conveyance force is increased and the conveyance efficiency is improved. Even when the surface is mirror-like, such as a resin film, there is no adhesion at the contact area with the high-friction parts 101 and 102, and the occurrence of this type of sheet adsorption phenomenon can be prevented as a whole. Furthermore, the surfaces of the high friction parts 101 and 102 are covered with elastic bodies 5 and 6.
Since it coincides with the surface of the elastic body 5. when vibrating.
The convex portion 6 is securely pressed against the sheet 13, and no defective sheet conveyance occurs. Furthermore, when the conveyance of the sheet is stopped, the high friction portion 101,
102 improves the holding force of the sheet and prevents the sheet from shifting due to external force C. Embodiment 2 FIG. 7 shows Embodiment 2 of the present invention, in which a plurality of V-shaped grooves 6a are provided along the traveling direction of the traveling wave on the surface of the elastic body 6 that comes into contact with the sheet, and the grooves are similarly formed. A high-friction part 102 is formed by filling a rubber-like substance into the high-friction part 102, which is made of a rubber-like substance and the exposed surface of the vibrating body that comes into contact with the sheet.
Although not shown, the surface of the elastic body 5 located on the upper side has a similar structure. Embodiment 3 FIG. 8 shows Embodiment 3, in which conical depressions 61 are randomly provided on the surface of the elastic body 6 and a rubber-like substance is applied thereto, regardless of the traveling direction of the traveling wave of the elastic body. A high-friction part 102'' is provided by filling the high-friction part 102''.
02" and the surface of the elastic body. Example 4 FIG. 9 shows Example 4. In this example, the elastic body 9
.. In order to enhance the vibration effect, a plurality of vibrating pieces 9a and 10a are provided on the surface of the vibrating piece 10 in a comb-teeth shape, and the vibrating pieces 9a
.. V-shaped grooves 9b and 10b are provided in the direction perpendicular to the traveling direction of the traveling wave on the surface that contacts the sheet of the lea, and the v
Groove 9b. 10b is filled with a rubber-like substance to form a high friction part 101. 102, the exposed surface of the vibrating body that comes into contact with the sheet and the high friction part 101.102 made of a rubber-like material.
, 1G2. [Effects of the Invention] As explained above, according to the present invention, high friction made of, for example, a rubber material is provided on a part of the surface of the elastic body that contacts the sheet, that is, the vibration surface, and the surface position is the same. By doing this, it is possible to: ■ improve the sheet transfer force and efficiency; ■ It becomes possible to send sheets of a wide range of materials. ■ Improved holding power when the seat is stopped. It has the following effects.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明によるシート送り装置の実施例1を示し
、第1図(a)は給電回路等を含む概略図、第1図(b
)はその弾性体の外観斜視図である.第2図は実施例1
の弾性体の振動状態を示す図、′s3図はシート搬送原
理を説明する図、第4図、第5図は従来のシート送り装
置の外観斜視図、第6図は第5図の弾性体の断面図、第
7図は実施例2の弾性体の外観斜視図、第8図は実施例
3の弾性体の体外観斜視図、第9図は実施例4の概略図
である. 1〜4・・・振動子    5.6・・・弾性体5a,
6a・・・V字溝  7・・・発振部8・・・エネルギ
ー吸収部 13・・・シート101, 102−・一高
摩擦部 第 1 図(Q) 他4名 第 1 図(b) 第 2 図 第 5 図 13 第 6 図 第 3 図 第 4 図 第 7 図 3 第 8 図
FIG. 1 shows a first embodiment of a sheet feeding device according to the present invention, FIG. 1(a) is a schematic diagram including a power supply circuit, etc., FIG.
) is a perspective view of the elastic body. Figure 2 shows Example 1
Figure 's3 is a diagram illustrating the sheet conveyance principle, Figures 4 and 5 are external perspective views of a conventional sheet feeding device, and Figure 6 is the elastic body shown in Figure 5. , FIG. 7 is a perspective view of the elastic body of Example 2, FIG. 8 is a perspective view of the elastic body of Example 3, and FIG. 9 is a schematic diagram of Example 4. 1 to 4... Vibrator 5.6... Elastic body 5a,
6a... V-shaped groove 7... Oscillating part 8... Energy absorbing part 13... Seats 101, 102-- High friction part Fig. 1 (Q) Other 4 people Fig. 1 (b) Fig. 2 Figure 5 Figure 13 Figure 6 Figure 3 Figure 4 Figure 7 Figure 3 Figure 8

Claims (1)

【特許請求の範囲】 1 振動子が固着される弾性体における該振動子固着面
と反対面に被搬送体であるシートを押圧し、該振動子に
周波電圧を印加して該弾性体に超音波振動を形成し、以
て超音波振動の形成される該弾性体の振動面によりシー
トに移送力を与えて搬送させる搬送手段を有するシート
送り装置において、 該弾性体の振動面の一部に面位置を同じと する高摩擦部を設けたことを特徴とするシート送り装置
[Claims] 1. A sheet, which is a conveyed object, is pressed against the surface of an elastic body to which a vibrator is fixed, opposite to the surface on which the vibrator is fixed, and a frequency voltage is applied to the vibrator, so that the elastic body is In a sheet feeding device having a conveying means that generates sonic vibrations and conveys the sheet by applying a conveying force to the sheet using the vibrating surface of the elastic body on which ultrasonic vibrations are formed, a part of the vibrating surface of the elastic body is provided. A sheet feeding device characterized by being provided with a high friction portion whose surface positions are the same.
JP15917289A 1989-06-21 1989-06-21 Sheet feed device Pending JPH0323143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15917289A JPH0323143A (en) 1989-06-21 1989-06-21 Sheet feed device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15917289A JPH0323143A (en) 1989-06-21 1989-06-21 Sheet feed device

Publications (1)

Publication Number Publication Date
JPH0323143A true JPH0323143A (en) 1991-01-31

Family

ID=15687862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15917289A Pending JPH0323143A (en) 1989-06-21 1989-06-21 Sheet feed device

Country Status (1)

Country Link
JP (1) JPH0323143A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148440A (en) * 2006-12-08 2008-06-26 Canon Inc Oscillation driver
JP2016126854A (en) * 2014-12-26 2016-07-11 株式会社豊田自動織機 Manufacturing method of electrode and manufacturing apparatus of electrode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148440A (en) * 2006-12-08 2008-06-26 Canon Inc Oscillation driver
JP2016126854A (en) * 2014-12-26 2016-07-11 株式会社豊田自動織機 Manufacturing method of electrode and manufacturing apparatus of electrode

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