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131. 发明专利

DE3515219C2 未知
公开(公告)号：DE3515219C2
公开(公告)日：1996-10-24
申请号：DE3515219
申请日：1985-04-26
申请人： PENTEL KK
发明人： SAKAOKA GOUJI
IPC分类号： B43K21/033 , B43K21/02
摘要： A mechanical pencil having a chuck mechanism which permits the lead to advance but prevents the lead from retracting, a first slider, a second slider which is retractable progressively as a writing pressure is applied, a first engagement device for holding the second slider at its retracted position and a second engagement device for holding the first slider at its retracted position. The progressively retracted second slider is released to advance to the forward original position by applying a further writing pressure to cause a retraction of the first slider. Then, the second slider is advanced forwardly together with the lead so that the lead is advanced to a writing position.

132. 发明专利

DE3336959C2 未知
公开(公告)号：DE3336959C2
公开(公告)日：1994-09-22
申请号：DE3336959
申请日：1983-10-11
申请人： PENTEL KK
发明人： SEKIGUCHI TOMOZO
IPC分类号： B43K21/033 , B43K21/22

133. 发明专利

DE3877138T2 未知
公开(公告)号：DE3877138T2
公开(公告)日：1993-06-17
申请号：DE3877138
申请日：1988-10-19
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA LTD , NAKAZATO LTD , MITSUYA LTD
IPC分类号： B43K21/027 , B43K21/033 , B43K21/16 , B43K24/08

134. 发明专利

DE3669281D1 未知
公开(公告)号：DE3669281D1
公开(公告)日：1990-04-12
申请号：DE3669281
申请日：1986-05-14
申请人： MICRO CO LTD
发明人： SAKAOKA GOUJI
IPC分类号： B43K21/22 , B43K21/027 , B43K21/033 , B43K21/02
摘要： An automatic mechanical pencil provided with a chuck (13) which will grip a lead (5) to allow the advance of the same, wherein the lead is kept prevented from retraction when it is pushed back by writing pressure, while the advance movement of the lead is allowed when it is to be advanced. On the tip portion of a mouth piece (2), a slider (4) provided with an elastic piece (6) to hold the lead by a frictional action is shiftably inserted. The chuck is provided on the rear portion of the mouth piece. Between the chuck and the slider, a spring (27) is provided so as to urge the slider forward as well as to urge the chuck backward. The advance of the lead is effected by the forward movement of the slider owing to the spring.

135. 发明专利

DE3641432C1 Apparatus for writing and drawing with rotating lead 未知
公开(公告)号：DE3641432C1
公开(公告)日：1988-02-11
申请号：DE3641432
申请日：1986-12-04
申请人： SCHMIDT KG FABRIK FUER FEINMEC
发明人： FRIETSCH KLAUS DIPL-ING
IPC分类号： B43K21/033 , B43K21/00
摘要： A writing and drawing apparatus has a rotating lead, the rotation being generated directly by the writing pressure. This can be undertaken mechanically or magnetically.

136. 发明专利

BR8604742A 未知
公开(公告)号：BR8604742A
公开(公告)日：1987-08-04
申请号：BR8604742
申请日：1986-01-25
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA HIDEHEI , KUWABARA YUKIMASA
IPC分类号： B43K21/033 , B43K21/16

137. 发明专利

FR2507547B1 未知
公开(公告)号：FR2507547B1
公开(公告)日：1987-02-27
申请号：FR8210202
申请日：1982-06-11
申请人： PENTEL KK
发明人： HASHIMOTO JUNICHI , SEKIGUCHI TOMOZO
IPC分类号： B43K21/033 , B43K21/20 , B43K21/16
摘要： A mechanical pencil with automatic lead advance in which a slider is temporarily locked at the time when a rearward thrust applied to the pencil tip is released. The slider is locked by an arrangement in which a movable locking tube is disposed around the slider. The locking tube can be inclined relative to the longitudinal axis of the pencil by a spring device so that the slider, when retracted, can be temporarily locked by the inclination of the locking tube.

138. 发明专利

DE3546418C1 未知
公开(公告)号：DE3546418C1
公开(公告)日：1987-02-26
申请号：DE3546418
申请日：1985-12-31
申请人： STAEDTLER FA J S
发明人： BRUNNER ENGELBERT
IPC分类号： B43K21/033 , B43K21/20 , B43K21/16
摘要： In the case of a refillable pencil having an axially movable refill-guiding tube which is loaded by a spring acting against the writing pressure and has a refill store and a clamping device which is composed of at least one pair of clamping tongues and one clamping bush, the refill being advanced during writing either automatically or as a result of actuation by a push-piece, the clamping bush and/or the pair of clamping tongues are to be arranged so that they, too, are axially movable and are to be loaded by at least one switching spring in the direction opposite to that of the writing pressure. Furthermore, it is to have control elements which result in or bring about a rotary movement of the refill-guiding tube and/or of a control part, and in so doing result in or bring about a retarded shortening of the axial movement section of the refill-guiding tube relative to the axial movement section of the refill and to the clamping device, when the pencil is lifted off the base after the pressing-on pressure has previously been increased and/or when an increased axial pressing-on pressure on the tip of the refill-guiding tube which pressure exceeds the writing pressure and overcomes the force of the switching spring acting on the clamping device is eliminated.

139. 发明专利

DE8536766U1 未知
公开(公告)号：DE8536766U1
公开(公告)日：1987-02-05
申请号：DE8536766
申请日：1985-12-31
申请人： STAEDTLER FA J S
IPC分类号： B43K21/033 , B43K21/20 , B43K21/02

140. 发明专利

IT1095950B 未知
公开(公告)号：IT1095950B
公开(公告)日：1985-08-17
申请号：IT2499378
申请日：1978-06-27
申请人： FABER CASTELL A W
IPC分类号： B43K21/027 , B43K21/033 , B43K21/20 , B43K
摘要： A mechanical pencil with a lead feed, automatically produced by pressure during use of the pencil, comprises a tubular lead magazine closed at an outer end by a removable actuating button and being movably guided in a tubular housing, clamping elements in the housing actuatable by pressure on the actuating button and a lead guide tube projecting from a conical end of the housing and being movable against the pressure of a spring into the latter and carrying at the inner end thereof an entrainment element exerting friction on the lead passing therethrough, in which the clamping elements are movable by means of the actuating button against the force of a second weaker spring and guided by rolling elements along a conical guide face of a clamping cone, which in turn is axially movable between two end positions in the housing.

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