EP0292755B1 - Verschlusskappe für ein Handschreibgerät - Google Patents

Verschlusskappe für ein Handschreibgerät Download PDF

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Publication number
EP0292755B1
EP0292755B1 EP88107262A EP88107262A EP0292755B1 EP 0292755 B1 EP0292755 B1 EP 0292755B1 EP 88107262 A EP88107262 A EP 88107262A EP 88107262 A EP88107262 A EP 88107262A EP 0292755 B1 EP0292755 B1 EP 0292755B1
Authority
EP
European Patent Office
Prior art keywords
cap
sleeve
connecting element
inner sleeve
clip
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.)
Expired - Lifetime
Application number
EP88107262A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0292755A1 (de
Inventor
Bruno Künzler
Wilhelm Schlink
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.)
Pelikan PBS Produktions GmbH and Co KG
Original Assignee
Pelikan GmbH
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 Pelikan GmbH filed Critical Pelikan GmbH
Priority to AT88107262T priority Critical patent/ATE67450T1/de
Publication of EP0292755A1 publication Critical patent/EP0292755A1/de
Application granted granted Critical
Publication of EP0292755B1 publication Critical patent/EP0292755B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
    • B43K25/02—Clips
    • B43K25/022—Clips attached to a pen cap

Definitions

  • the invention relates to a closure cap for a hand-held writing instrument, consisting of an outer cap sleeve, an inner sleeve arranged inside the cap sleeve, a closure on the outside of the cap sleeve and the inner sleeve with two interlocking parts, through which the cap sleeve, the inner sleeve and the clip are connected to one another, the closure having a connecting element which can be inserted from the outside into the cap sleeve and the inner sleeve, in the outer surface of which an annular groove is provided, into which a bead engages at the end of the inner sleeve.
  • a closure cap of this type is known from prior public use.
  • the bead of the inner sleeve is not sufficiently secured against loosening from the connecting element.
  • the closure at the end of the cap sleeve consists of a closure piece which can be fitted from the outside onto the end of the cap sleeve and which has a shaft protruding into the cap sleeve which has the fastening ear of the clip and a radial collar on Reaches through the end of the inner sleeve.
  • the shaft is held by a locking ring which is inserted into the inner sleeve and has an inner recess which snaps into an undercut in the shaft.
  • a closure cap is also known (DE-GM 73 14 439), in which the clip is held at the end of the cap sleeve by a clip screw which can be screwed into a threaded attachment at the end of the inner cap. This means that a separate clip nut on the inside of the cap sleeve can be omitted.
  • this known closure cap it is disadvantageous that the production of the inner cap is expensive in terms of injection molding, since the cap base required in the injection mold for sealing purposes makes a free-standing core necessary.
  • the assembly of the known closure cap is also not so simple because the inner cap must be secured against twisting with the aid of a special tool which engages in recesses in the cap base.
  • the connecting element can be inserted from the inside into the cap sleeve and the inner sleeve.
  • the invention has for its object to provide a cap of the type mentioned, which consists of easy to manufacture parts, can be easily assembled with the help of automatic devices and in which the snap connection between the inner sleeve and the connecting element is additionally secured against loosening.
  • the end of the inner sleeve has a constriction and that an inwardly projecting ring collar is provided in the bore of the cap sleeve, which is opposite the constriction and prevents the inner sleeve from radial expansion and which through a conical surface to the Hole wall is connected.
  • the closure cap according to the invention is characterized by a number of advantages. So the assembly of the cap is particularly easy, since only the inner sleeve in the Cap sleeve is inserted and the remaining parts can be mounted from the outside. Since the connecting element snaps directly into the inner sleeve, it is sufficient during assembly if the inner sleeve is supported accordingly. The snap connection between the inner sleeve and the connecting element continues to create a good seal, since the constriction the inner sleeve rests due to its elasticity with radial tension on the wall surfaces of the annular groove of the fastener.
  • the direct engagement of the connecting element in the inner sleeve results in a relatively large diameter for the latching connection, which ensures good absorption of the forces when the clip is springed.
  • the components of the closure cap according to the invention are easy to manufacture by injection molding. In particular in the manufacture of the cap sleeve and inner sleeve, it is advantageous that the injection mold can have a continuous core.
  • the outwardly open bore of the connecting element of the closure cap according to the invention can serve in an advantageous embodiment for fastening a cap head which surrounds the connecting element from the outside.
  • the connecting element is therefore not visible from the outside and can therefore be used for numerous caps of different colors.
  • the attachment of the cap head in the bore of the connecting element is simple and leaves the shape of the cap head free.
  • the connecting element is formed in one piece with the clip.
  • the connecting element and clip ear are then fused into one component, which further reduces the number of parts and simplifies assembly accordingly.
  • the constriction of the inner sleeve rests against an obtuse-angled conical surface of the connecting element that tapers in the mounting direction.
  • This is a tolerance compensation achieved, since the constriction of the inner sleeve has the tendency to move by contraction on the conical surface until the cap sleeve and, if applicable, the fastening ear of the clip rest against the connecting element in the axial direction without play.
  • a good seal between the connecting element and the inner sleeve is achieved by this configuration.
  • An anti-rotation device between the connecting element and the cap sleeve, which is required for securing the clip in position, can advantageously be achieved according to the invention in that a cylindrical region of the connecting element, which engages in a bore section of the cap sleeve, is provided with longitudinal ribs which are in longitudinal grooves in the wall of the bore section.
  • the number of longitudinal grooves can be a multiple of the number of longitudinal ribs.
  • the anti-rotation of the clip relative to the connecting element can also be achieved with the aid of the longitudinal ribs by engaging in grooves which are provided in the bore in the fastening ear of the clip.
  • the cap 1 of a fountain pen shown in Fig. 1 consists of an outer cap sleeve 2, in which there is an inner sleeve 3 made of an elastic plastic, which is provided with locking lugs 4 for holding the cap 1 on the writing tip of the fountain pen.
  • the cap sleeve 2 and the inner sleeve 3 are closed at one end by a connecting element 5 which connects the two parts and a clip 6 arranged on the outside of the cap sleeve 2.
  • the clip 6 is made of metal and is provided with a fastening tube 7 bent at a right angle, which bears from the outside against the end face at the end of the cap sleeve 2 and is matched with its outside diameter to the outside diameter of the cap sleeve 2.
  • the end face at the end of the cap sleeve 2 is formed by a radially inwardly directed collar 8, against which the inner sleeve 3 bears in the axial direction from the inside.
  • the connecting element 5 consists of a substantially cylindrical body, with a central blind hole 9, whose opening is directed outwards.
  • the outer surface of the connecting element 5 consists of a central, cylindrical section 10, to which an annular collar 11 with a larger diameter than the section adjoins and an annular groove 12 to the inside.
  • the section 10, as shown in FIG. 3, is provided with longitudinal ribs 13 which engage in longitudinal notches 14 in the bores in the fastening ear 7 and in the collar 8 and secure these parts against mutual rotation.
  • the number of longitudinal notches 14 is a multiple of the number of longitudinal ribs 13 in order to facilitate the insertion of the connecting element 5 into the fastening ear 7 and the collar 8.
  • the connecting element 5 presses the fastening ear 7 with its ring collar 11 against the end face of the cap sleeve 2, so that the clip 6 is positively connected to the cap sleeve 2 in each direction.
  • the connecting element 5 is held by an elastically deformable constriction 15 at the end of the inner sleeve 3, which is locked into the annular groove 12 with a radially inwardly directed bead 16 and is supported with an end edge 17 in the axial direction on the inside of the collar 8.
  • the inner sleeve 3 forms, together with the connecting element 5, an easily mountable snap connection, so that additional components such as locking rings or the like are unnecessary.
  • the side surface 18 of the annular groove 12 facing the collar 8 is designed as an obtuse-angled conical ring surface.
  • the bead 16 of the constriction 15 therefore pulls the connecting element 5 into the inner sleeve 3 as far as it contracts after snapping into the annular groove 12 until the annular collar 11, the fastening ear 7, the collar 8 and the inner sleeve 3 rest against each other without play. Since the manufacturing-related dimensional deviations of the parts mentioned are small, it suffices if the described drawing of the connecting element 5 into the inner sleeve 3 is only a few tenths of a millimeter.
  • the insertion of the connecting element 5 into the inner sleeve 3 during assembly of the closure is facilitated by the conical surfaces 19, 20 on the connecting element 5 and the inner sleeve 3.
  • a hollow pin 21 of a cap head 22 is held in the blind bore 9 of the connecting element 5.
  • the cap head 22 encloses the connecting element 5 so that it is no longer visible from the outside and can be designed as desired in its shape and color or can be matched to the cap sleeve 2.
  • the assembly of the cap described is extremely simple. First, the cap sleeve 2, the clip 6 and the connecting element 5 are inserted into one another and then firmly connected to one another by pressing in the inner sleeve 3. The parts can be fed and assembled automatically. Then the cap head 22 is inserted with its pin 21 into the connecting element. The attachment can be done by friction or additionally by gluing.
  • a narrow annular collar 23 is provided in the bore of the cap sleeve 2, which is opposite the extreme end of the constriction 15 with little play and is connected to the bore wall by a conical surface 24 is. While the end cap 17 of the inner sleeve 3 slides along the conical surface with little elastic deformation when the closure cap 1 is assembled, until it snaps into place in the Ring groove 12 is located within the ring collar 23, the attempt to pull the snap connection apart supports the outer surface of the constriction 15 on the ring collar 23 and thereby complicates widening of the constriction 15 and thus also loosening of the snap connection. The snap connection between the connecting element 5 and the inner sleeve 3 is thus additionally secured against loosening.
  • the clip 26 and the connecting element 27 are injection molded in one piece from a plastic.
  • the connecting element 27 is connected in the same way as described in connection with FIG. 1 with a cap sleeve 2 and an inner sleeve 3.
  • the connecting element 27 therefore has a cylindrical section 10 with longitudinal ribs 13 and an annular groove 12 with a conical side surface 18.
  • the annular collar 28 of the connecting element 27 which merges into the clip 26 is adapted in its outer diameter to the cap sleeve 2 and is not covered by the shortened cap head 29.
  • the cap head 29 is fastened in the same way as in the closure cap 1 by means of a hollow pin 30 which is inserted into a blind hole 31 in the connecting element 27.
  • the assembly of the closure cap 25 is further simplified by the one-piece design of the clip 26 with the connecting element 27.
  • the invention leaves the designer a great deal of design freedom, the number of components which differ from one another being small.
  • the invention thus contributes to a particularly economical manufacture of writing utensils of various designs.

Landscapes

  • Clips For Writing Implements (AREA)
  • Pens And Brushes (AREA)
  • Insertion Pins And Rivets (AREA)
EP88107262A 1987-05-27 1988-05-06 Verschlusskappe für ein Handschreibgerät Expired - Lifetime EP0292755B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107262T ATE67450T1 (de) 1987-05-27 1988-05-06 Verschlusskappe fuer ein handschreibgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873717894 DE3717894A1 (de) 1987-05-27 1987-05-27 Verschlusskappe fuer ein handschreibgeraet
DE3717894 1987-05-27

Publications (2)

Publication Number Publication Date
EP0292755A1 EP0292755A1 (de) 1988-11-30
EP0292755B1 true EP0292755B1 (de) 1991-09-18

Family

ID=6328549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107262A Expired - Lifetime EP0292755B1 (de) 1987-05-27 1988-05-06 Verschlusskappe für ein Handschreibgerät

Country Status (3)

Country Link
EP (1) EP0292755B1 (enExample)
AT (1) ATE67450T1 (enExample)
DE (2) DE3717894A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4001564C1 (en) * 1990-01-20 1991-08-01 Gebr. Schmidt, Fabrik Fuer Feinmechanik, 7742 St Georgen, De Pen with vented cap - has vent connected to cap interior through diffusion venting channel which crosses sealing sleeve against inside cap wall
DE4324593C1 (de) * 1993-07-22 1994-08-18 Pelikan Ag Handschreibgerät mit abnehmbarer Kappe
DE4407153C2 (de) * 1994-03-04 1999-01-07 Pelikan Ag Kappe zum Abdecken der Schreibspitze eines Handschreibgerätes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509234A (en) * 1945-12-28 1950-05-30 Kahn David Inc Fountain pen cap
DE1954338U (de) * 1966-10-13 1967-01-26 Faber Castell A W Aufsteckbare fuellhalter-schutzkappe.
DE1289456B (de) * 1966-10-21 1969-02-13 Montblanc Simplo Gmbh Gewindelose Schutzkappe fuer Fuellhalter
DE6911385U (de) * 1969-03-21 1969-08-28 Staedtler Fa J S Vorrichtung zur befestigung eines klips bei fuellschreibstiften
DE7314439U (de) * 1973-04-16 1973-07-12 Geha Werke Gmbh Steckkappe
DE2729514A1 (de) * 1977-03-16 1979-01-11 Kreuzer Erwin Schreibgeraet mit halteclip
DE3545719C1 (en) * 1985-12-21 1987-04-09 Otto Mutschler Clip fastening on a writing implement

Also Published As

Publication number Publication date
EP0292755A1 (de) 1988-11-30
DE3717894A1 (de) 1988-12-08
DE3864902D1 (de) 1991-10-24
DE3717894C2 (enExample) 1989-03-02
ATE67450T1 (de) 1991-10-15

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