WO2017137697A1 - Portemine a bouton lateral et distribution de gomme et procede d'assemblage - Google Patents
Portemine a bouton lateral et distribution de gomme et procede d'assemblage Download PDFInfo
- Publication number
- WO2017137697A1 WO2017137697A1 PCT/FR2017/050282 FR2017050282W WO2017137697A1 WO 2017137697 A1 WO2017137697 A1 WO 2017137697A1 FR 2017050282 W FR2017050282 W FR 2017050282W WO 2017137697 A1 WO2017137697 A1 WO 2017137697A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mine
- advance mechanism
- longitudinal direction
- rotation
- side button
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/16—Writing-core feeding mechanisms with stepwise feed of writing-cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/027—Writing-core feeding mechanisms with sliding tubelike writing-core guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/22—Writing-cores gripping means, e.g. chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K29/00—Combinations of writing implements with other articles
- B43K29/02—Combinations of writing implements with other articles with rubbers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L19/00—Erasers, rubbers, or erasing devices; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/24—Assembling, finishing, or repairing propelling pencils
Definitions
- the present disclosure relates to a side-actuated pencil comprising a gum advance mechanism.
- the gum advance mechanism makes it possible to release or retract the eraser inside a pencil of the mechanical pencil, the barrel extending in a longitudinal direction.
- the gum advance mechanism generally comprises a tube carrying a helical cam and a translation guide cylinder for transforming a rotational movement of the tube into a translational movement in the longitudinal direction of the eraser. .
- This rotational locking of the guide cylinder is generally carried out either by mechanical clamping of one end of the guide cylinder in the barrel and / or by cooperation of at least one groove and a rib borne respectively by one end. of the guide cylinder and the barrel or vice versa.
- the dimensional control of the rib and / or the groove in the barrel can also be difficult to achieve.
- the guide cylinder being generally inserted into the barrel by the end bearing the groove or the rib, respectively the rib or the groove in the barrel has a dimension in the relatively long longitudinal direction (corresponding to the insertion length of the guide cylinder in the barrel) and a dimension in a circumferentially relatively small direction.
- the present disclosure aims to remedy at least in part these drawbacks.
- the present disclosure relates to a mechanical pencil comprising a shaft extending in a longitudinal direction, a mine advance mechanism, a mine reservoir, a side button, and a gum advance mechanism to helicoidal cam, the mine advance mechanism, the mine reservoir, the gum advance mechanism and the side button being at least partially housed in the barrel, the mine advance mechanism, the mine reservoir and the gum feed mechanism being rotatably locked about the longitudinal direction relative to each other and relative to the side button while the side button is locked in rotation about the longitudinal direction relative to the barrel.
- the gum advance mechanism is locked in rotation about the longitudinal direction relative to the barrel via the side button.
- the rotational locking of the gum advance mechanism relative to the barrel is achieved by locking in rotation about the longitudinal direction of the gum advance mechanism, the mine reservoir and the mechanism of advance of mine relative to each other and with respect to the lateral button, the latter also being locked in rotation about the longitudinal direction relative to the barrel.
- the gum advance mechanism is locked in rotation about the longitudinal direction relative to the barrel. It is therefore understood that the gum advance mechanism, the mine reservoir and the mine advance mechanism are rotatably coupled with each other. In particular, the gum advance mechanism is rotatably coupled with the mine reservoir and the mine reservoir is locked in rotation with the mine advance mechanism.
- the locking in rotation of the gum advance mechanism is not achieved by direct cooperation of the gum advance mechanism and the barrel. It is therefore not necessary to provide mechanical clamping means of the gum advance mechanism in the barrel and / or grooves and / or ribs in the barrel.
- the gum advance mechanism and the mine advance mechanism may each comprise free portions in rotation about the longitudinal direction. Also, as soon as at least a portion of the gum advance mechanism or the mine advance mechanism is locked in rotation about the longitudinal direction, the gum advance mechanism or the gum mechanism will be considered Mine lead is locked in rotation around the longitudinal direction.
- the drum may comprise a window extending in the longitudinal direction and the side button has an actuating portion and an annular ring, interconnected by a rod, the lateral knob being locked in rotation about the longitudinal direction. by cooperation in abutment of the rod and the window.
- the annular ring may comprise a substantially spherical outer surface.
- substantially spherical it is understood that if the outer surface of the annular ring is extended, a substantially spherical sphere or volume is obtained.
- substantially spherical it is understood that three orthogonal axes passing through the center of the sphere may not be strictly equal. Indeed, the length of a first of the three axes can be between 95% and 105% of the length of a second of the three axes.
- the shape of the outer surface makes it possible to rotate the side button in the barrel during the assembly of the mechanical pencil by reducing the risk of jamming of the outer surface of the annular ring with an inner wall of the barrel.
- a maximum diameter of the annular ring may correspond to an inner diameter of the barrel so as to reduce the clearance between the annular ring and the barrel, once the annular ring inserted into the barrel. It is thus possible to limit the contact area between the ring and the barrel to a generator.
- the side button may comprise an annular ring disposed in the barrel and the mine advance mechanism may comprise a clamp holder, the clamp holder being locked in rotation about the longitudinal direction relative to the annular ring.
- the locking in rotation about the longitudinal direction of the side button relative to the mine advance mechanism is achieved by cooperation abutting surfaces of the clamp holder and the annular ring.
- the mine advance mechanism may comprise a clamp support, the mine reservoir being locked in rotation about the longitudinal direction relative to the clamp support.
- the locking in rotation about the longitudinal direction of the mine advance mechanism relative to the reservoir is formed by cooperation abutting surfaces of the clamp support and the mine reservoir.
- the gum advance mechanism may comprise a guide cylinder blocked in rotation about the longitudinal direction relative to the mine reservoir.
- the locking in rotation about the longitudinal direction of the gum advance mechanism relative to the mine reservoir is achieved by cooperation abutting surfaces of the guide cylinder and the mine reservoir.
- the mine advance mechanism, the mine reservoir and the gum advance mechanism can be coupled longitudinally.
- the longitudinal coupling between the mine advance mechanism and the mine reservoir may have a force greater than a longitudinal coupling force between the mine reservoir and the mine advance mechanism.
- the coupling force between the mine advance mechanism and the mine reservoir is greater than the coupling force between the mine reservoir and the gum advance mechanism, the coupling between the mine reservoir and the gum feed mechanism yields first. It is then possible to fill the mine tank. It is therefore possible to recharge the pencil in mines.
- This coupling mode is easy to implement.
- At least one locking in rotation about the longitudinal direction may comprise a rotational locking system comprising a plurality of ribs, each rib having a beveled longitudinal end.
- the rotational locking system comprising a plurality of ribs, it is easier to angularly position the different elements relative to each other. Indeed, if the locking system has only one rib, the two elements to be blocked can cooperate in only one position. As the number of ribs increases, the more the number of relative angular positions of the elements so that they can cooperate with each other increases. Assembly is therefore easier.
- the present disclosure also relates to a method of assembling a mechanical pencil comprising the steps of:
- the assembly of the mechanical pencil is relatively easy. Indeed, the mine advance mechanism and the gum advance mechanism can each be assembled out of the barrel and the gum advance mechanism can also be assembled to the mine reservoir out of the barrel.
- the first subassembly is formed by the mine advance mechanism and the second subassembly is formed by the gum advance mechanism and the mine reservoir.
- the locking in rotation about the longitudinal direction does not require the presence of ribs in the barrel.
- the rotational locking of the gum advance mechanism relative to the barrel is achieved by locking in rotation about the longitudinal direction of the gum advance mechanism relative to the mine reservoir, itself locked in rotation around the longitudinal direction relative to the mine advance mechanism, the latter also being locked in rotation about the longitudinal direction relative to the side button, the lateral button being locked in rotation about the longitudinal direction relative to the barrel.
- the side button may comprise an actuating portion and an annular ring, interconnected by a rod having an axis, the barrel may comprise a window extending in the longitudinal direction and can be inserted the annular ring of the button. lateral side in the window of the barrel and one can turn the side button 90 ° around the axis of the rod, the lateral button being locked in rotation about the longitudinal direction by cooperation in abutment of the rod and the window.
- the annular ring can be inserted into the window, in a configuration in which the annular ring is rotated at 90 ° with respect to a configuration of use of the side button and then turn the side button so that an axis of the annular ring, which was perpendicular to the longitudinal direction when inserting the annular ring in the barrel, is parallel to the longitudinal direction.
- FIG. 1 is a perspective view of a mechanical pencil according to an embodiment of the mechanical pencil
- FIG. 2 is an exploded view according to a first perspective of the mechanical pencil of Figure 1;
- FIG. 3 is an exploded view according to a second perspective of the mechanical pencil of Figure 1;
- FIG. 4 is an enlarged perspective view of the side button of FIG. 2;
- FIGS. 5A and 5B are enlarged views, respectively in perspective and in longitudinal section, of the clamp support of FIG. 2;
- FIGS. 6A and 6B are enlarged views, in perspective, of a first and a second end of the mine reservoir of FIG. 2;
- FIG. 7 is an enlarged perspective view of the guiding cylinder of FIG. 2;
- FIG. 8 is a perspective view illustrating the side button before insertion into the barrel.
- FIG. 9 is a sectional view of the mechanical pencil, the side button being inserted into the barrel, the mine advance mechanism being preassembled and ready to be inserted into the barrel;
- FIG. 10 is a sectional view of the mechanical pencil, the gum advance mechanism and the mine reservoir being pre-assembled and ready to be inserted into the barrel
- FIG. 11 is a sectional view of the mechanical pencils of Figure 1 along the plane XI-XI of Figure 1 in activated configuration;
- FIG. 12 is a similar view of the mechanical pencils of Figure 1 in the rest configuration.
- Figure 1 shows a mechanical pencil 10 having a shaft 12 extending in a longitudinal direction L, a nose 14 screwed on a front end 12A was 12, a mine protector 16, a side button 18, a clip 20 arranged at a rear end of the barrel 12B and a gum advance mechanism 22.
- front and rear will be included with reference to these front ends 12A and rear 12B in the longitudinal direction L.
- the longitudinal direction corresponds to the direction of the axis L of the barrel
- the radial direction is a direction perpendicular to the longitudinal direction L
- the circumferential direction C corresponds to the direction describing a ring around the longitudinal direction L.
- the three longitudinal, radial and circumferential (or azimuthal) directions respectively correspond to the directions defined by the coast, the radius and the angle in a cylindrical coordinate system.
- the adjectives "Inside” and "outside” are used with reference to a radial direction so that the inner (ie radially inner) part of an element is closer to the L axis than the outer (ie radially outer) part of the same element .
- Figures 2 and 3 show two exploded views of the mechanical pencil 10 of Figure 1 presented in different perspectives.
- the mechanical pencil 10 also comprises a mine advance mechanism 24 and a mine reservoir 26.
- the mine advance mechanism 24 comprises a clamp 28, a clamping ring 30, a clamp sleeve 32, a spring 34 and a clamp support 36.
- the gum advance mechanism 22 comprises a guide cylinder 38, a gum holder 40, a tube 42 and a gum 44.
- the side button 18 comprises an actuating portion 46 and an annular ring 48, interconnected by a rod 50.
- the annular ring 48 has a substantially spherical outer surface 52 and an inner surface 54 carrying a plurality of longitudinal ribs 56 spaced apart from each other in a regular manner. The spaces between the ribs 56 form grooves 58. It is understood that the ribs 56 and the grooves 58 are parallel to the axis L of the mechanical pencil 10 when the side button 18 is in the configuration of use. In the configuration of use, the axis of the annular ring 48 is parallel to the axis L of the mechanical pencil 10, it coincides with the axis L of the mechanical pencil 10.
- the rod 50 has an axis A oriented in the radial direction R.
- Figures 5A and 5B show perspective views, respectively seen from the rear and the front of the clamp holder 36 of the mine advance mechanism.
- the clamp support 36 comprises, from front to rear, a first cylindrical portion 36A and a second cylindrical portion 36C interconnected by a conical intermediate portion 36B.
- the clamp support 36 then comprises a third cylindrical portion 36E connected to the second cylindrical portion 36C by a collar 36D.
- the third cylindrical portion 36E carries on an outer surface 36F of longitudinal ribs 60 spaced apart from each other in a regular manner.
- the spaces between the ribs 60 form grooves 62. It is understood that the ribs 60 and the grooves 62 are parallel to the axis L of the mechanical pencil 10 when the clamp support 36 is assembled in the mechanical pencil 10, that is to say say when the clamp holder 36 is in use configuration.
- the ribs 60 and the grooves 62 of the clamp support 36 are configured to cooperate with the ribs 56 and the grooves 58 carried by the inner surface 54 of the annular ring 48 so as to lock in rotation about the longitudinal direction L the gripper support 36 with respect to the lateral knob 18. Furthermore, an abutment surface 64 of the collar 36D of the gripper support 36 is intended to cooperate with an abutment surface 48A of the annular ring 48.
- the clamp support 36 is hollow and has an inner surface 36G including a front portion 36H carries annular reliefs 66 configured to cooperate with complementary annular reliefs 68 carried by a rear end 28A of the clamp 28 so as to block the clamp 28 in the clamp holder 36 in the longitudinal direction L.
- the inner surface 36G of the clamp support 36 has an intermediate portion 361 which bears oblong reliefs 70.
- the rear portion 361 bears eight oblong reliefs 70 distributed in two groups of four reliefs along the longitudinal direction L. Each group has four oblong reliefs 70 uniformly distributed in the circumferential direction C.
- the inner surface 36G of the gripper support 36 also includes a rear portion 36J of the gripper support 36 which carries longitudinal ribs 72 spaced from each other in a regular manner, in the embodiment of FIGS. 5A and 5B, four longitudinal ribs 72.
- the spaces between the ribs 72 form grooves 74.
- the ribs 72 and the grooves 74 are parallel to the axis L of the mechanical pencil 10 when the clamp support 36 is assembled in the mechanical pencil 10, that is to say say when the clamp holder 36 is in use configuration.
- each rib 60 has on a rear longitudinal end a bevelled face 60A.
- the bevelled faces 60A allow easier insertion of the clamp holder 28 in the annular ring 48 of the side button 18. They allow especially when the ribs and the grooves are not properly aligned to facilitate their alignment and thus the assembly of the clamp holder 28 in the side button 18.
- each rib 72 has on a rear longitudinal end two bevelled faces 72A.
- Figures 6A and 6B show perspective views of a front end 26A and a rear end 26B of the mine reservoir 26. Between these two ends 26A, 26B, the mine reservoir 26 comprises a tank body 26C of substantially cylindrical shape for receiving mines and extending in the longitudinal direction L.
- the front end 26A of the mine tank comprises, from front to rear, two annular beads 80 and four longitudinal ribs 76 spaced from each other in a regular manner.
- Each rib 76 has on one longitudinal end before two bevelled faces 76A.
- the spaces between the ribs 76 form grooves 78.
- the ribs 76, the grooves 78 and the annular beads 80 are carried by an outer surface 26D of the mine reservoir.
- the ribs 76 and the grooves 78 of the front end 26A of the mine reservoir 26 are configured to cooperate with the ribs 72 and grooves 74 carried by the rear portion 36J of the inner surface 36G of the clamp holder 36 of so as to lock in rotation about the longitudinal direction L the mine reservoir 26 relative to the gripper support 36.
- the annular beads 80 of the front end 26A of the mine reservoir 26 are configured to cooperate with the reliefs 70 of oblong shape carried by the intermediate portion 361 of the inner surface 36G of the gripper support 36 so as to longitudinally couple the mine reservoir 26 and the gripper support 36.
- the mine reservoir 26 has a shoulder 82 intended to abut against a rear abutment surface 36K of the clamp support 36.
- the bevelled faces 72A of the ribs 72 and the bevelled faces 76A of the ribs 76 allow easier insertion of the front end 26A of the mine reservoir. 26 in the third cylindrical portion 36E of the clamp support 28.
- the beveled faces allow in particular when the ribs and grooves are not properly aligned to facilitate alignment, facilitating rotation around the longitudinal direction L of the mine reservoir 26 by relative to the clamp support 28 during their assembly.
- the rear end 26B of the mine reservoir 26 has an inner surface 26E carrying four longitudinal ribs 84 spaced apart from each other in a regular manner.
- Each rib 84 has on a rear longitudinal end two beveled faces 84A and carries a relief 88 of oblong shape. The spaces between the ribs 84 form grooves 86.
- FIG. 7 shows a perspective view of the guiding cylinder 38 of the rubber advance mechanism 22.
- the guide cylinder 38 has a front end 38A, a rear end 38C, the two ends 38A, 38C being separated by a body 38B.
- the front end 38A comprises, on an outer surface 38D, four longitudinal ribs 90 spaced apart from each other in a regular manner. Each rib 90 has on one longitudinal end before two bevelled faces 90A. The spaces between the ribs 90 form grooves 92.
- An annular bead 94 is disposed in the grooves 92.
- the annular bead 94 has a thickness in the radial direction R which is less than a thickness of the ribs 90 along the same radial direction R. The thickness of the ribs 90 is measured in line with the annular bead 94.
- the ribs 90 and the grooves 92 of the front end 38A of the guide cylinder 38 are configured to cooperate with the ribs 84 and grooves 86 carried by the inner surface 26E of the rear end 26B of the mine reservoir 26 so as to lock in rotation about the longitudinal direction L the guide cylinder 38 relative to the mine reservoir 26.
- the annular bead 94 of the end before 38A of the guide cylinder 38 is configured to cooperate with the reliefs 88 of oblong shape carried by the tabs 84 of the rear end 26B of the mine reservoir 26 so as to couple longitudinally the guide cylinder 38 and the mine reservoir 26
- the mine reservoir 26 has a shoulder 96 intended to abut against a front abutment surface 38E of the guide cylinder 38.
- the bevelled faces 84A of the ribs 84 and the bevelled faces 90A of the ribs 90 allow easier insertion of the front end 38A of the guide cylinder 38 in the rear end 26B of the mine reservoir 26.
- the beveled faces allow especially when the ribs and grooves are not properly aligned to facilitate alignment, facilitating rotation around the longitudinal direction L of the guide cylinder 38 by compared to the mine reservoir 26 during their assembly.
- the body 38B of the guide cylinder 38 is of cylindrical shape and extends in the longitudinal direction L.
- the body 38B is pierced by two windows 98 extending in the longitudinal direction and diametrically opposite one to the other.
- the two windows 98 are configured to receive and guide the eraser holder 40.
- the body 38B of the guide cylinder also comprises, between the windows 98 and the ribs 90 in the longitudinal direction L, a pair of elastic tabs 100.
- the rear end 38C of the guide cylinder 38 comprises an annular abutment surface 102.
- the rubber holder 40 has a general shape in "U" having two fins 104 interconnected by a base 106.
- the two fins 104 are configured to slide in the windows 98 of the guide cylinder 38.
- Each fin 104 carries, on an inner surface 104A, a lug 108 for locking the rubber 44 and, on an outer surface 104B, a post 110 configured to slide in a helical cam 112 carried by an inner surface 42A of the tube 42. It is therefore clear that the tube 42 comprises two helical cams 112 nested one inside the other. We will now describe the assembly process of the pencil 10 with reference to Figures 8 to 11.
- Assemble the mine advance mechanism 24 by inserting the clamping ring 30 into the clamp sleeve 32.
- the spring 34 is then inserted between the clamping ring 30 and the clamp sleeve 32.
- the gripper support 36 is inserted into the gripper sleeve 32 and the gripper sleeve 32 is inserted through the front of the gripper sleeve 32, until the annular reliefs 68 of the end are inserted into the gripper 28 rear 28A of the clamp 28 with the annular reliefs 66 of the front portion 36H of the inner surface 36G of the clamp holder 36.
- the mine advance mechanism 24 is assembled and ready to be mounted in the mechanical pencil 10.
- gripper sleeve 32 is free to rotate about the longitudinal direction L with respect to the gripper support 36.
- each fin 104 is inserted into one of the windows 98 of the guide cylinder 38.
- the guide cylinder 38 at its front end 38A in the tube 42.
- the elastic tabs 100 are deformed towards the inside of the guide cylinder 38.
- the tenons 110 are then inserted into the cams helical 112 of the tube 42 and the tube 42 is rotated about the longitudinal direction L until the tube 42 passes completely over the elastic tabs 100.
- the elastic tabs 100 n being more forced towards the inside of the guide cylinder 38 by the tube 42, the elastic tabs return to their initial position and lock the tube 42 longitudinally between the abutment surface 102 of the rear end 38C of the cylinder. guide 38 and the legs elastics 100. It is understood that the longitudinal locking can be achieved with a negligible clearance that corresponds to manufacturing tolerances.
- the rubber 44 is then inserted into the eraser holder 40 and the tube 42 is rotated about the longitudinal direction L with respect to the guide cylinder 38 so that the eraser 44 protrudes slightly from the rear end 38C of the guide cylinder. 38.
- the gum advance mechanism 22 with a helical cam 112 is assembled.
- the assembly of the gum advance mechanism 22 with a helical cam 112 may comprise variants.
- the beveled faces 90A of the ribs 90 of the front end 38A of the guide cylinder 38 cooperate with the bevelled faces 84A of the ribs 84 of the rear end 26B of the mine reservoir 26 to align the ribs 90 with the grooves 86 of the rear end 26B of the mine reservoir 26 and align the ribs 84 with the grooves 92 of the front end 38A of the guide cylinder 38.
- the guide cylinder 38 is thus locked in rotation around the longitudinal direction L with respect to the mine reservoir 26 by abutment engagement of the ribs 84, 90 with the grooves 86, 92.
- the gum advance mechanism 22 is locked in rotation about the longitudinal direction L relative to the mine reservoir 26.
- the tube 42 is not blocked in rotation about the longitudinal direction L with respect to the mine reservoir 26.
- the guide cylinder 38 is also coupled longitudinally with the mine reservoir 26 by longitudinal snapping of the annular beads 94 carried by the front end 38A of the guide cylinder with the reliefs 88 of oblong shape carried by the ribs 84 of the rear end 26B of the mine reservoir 26.
- the gum advance mechanism 22 is coupled longitudinally to the mine reservoir 26.
- the gum holder 40 and the gum 44 may not be coupled to the mine reservoir 26, in the sense that, when the tube 42 is rotated to advance or retreat the eraser 44, the eraser holder 40 and the eraser 44 move longitudinally relative to the mine reservoir 26.
- the assembly formed by the mine reservoir 26 and the gum advance mechanism 22 is ready to be assembled in the shaft 12, as shown in FIG. 10.
- the barrel 12 comprises a window 114 extending in the longitudinal direction L and whose shape and dimensions correspond to a widest section of the annular ring 48 taken along a plane comprising a diameter of the annular ring 48 and comprising the axis L (see Figure 4).
- the side button 18 is shown in broken lines in its use configuration when the annular ring 48 is inserted into the barrel 12. To insert the side button 18 in the window of the barrel 12, the side knob is rotated around the axis A of the rod 50 of 90 ° in the position shown in solid lines in Figure 8, the axis L of the annular ring 48 is perpendicular to the axis L of the barrel 12.
- the annular ring 48 is inserted in the window until the abutment of the lateral button 18 is inserted in the barrel 12. In this position, the annular ring 48 is fully inserted into the barrel 12, the actuating portion 46 is out of the barrel 12 and the rod 50 is in the window 114 of the barrel. The lateral button 18 is then rotated 90 ° about the axis A of the rod 50 so as to align the axis L of the lateral button 18 with the axis L of the barrel 12.
- the lateral button 18 is thus locked in rotation about the longitudinal direction by cooperation in abutment of the rod 50 with the window 114, in particular with longitudinal edges 114A of the window 114.
- the rod 50 is cylindrical shape and has a diameter equal to or close to the width of the window 114 (with manufacturing tolerances). It is understood that the shaft 12 has a thickness according to the radial direction R which is less than or equal to a length of the rod 50 along the axis A.
- the lateral knob 18 is locked in rotation about the longitudinal direction relative to the shaft 12.
- the lateral button 18, in particular the annular ring 48 is inserted into the barrel 12 through the window 114 of the barrel 12 and the mine advance mechanism 24 is ready to be inserted into the barrel 12 by the front end 12A of the barrel 12.
- the lateral button 18 may be disposed at the front of the window 114.
- the ribs 60 and the grooves 62 carried by the third cylindrical portion 36E of the clamp support 36 are brought into contact with the ribs 56 and the grooves 58. carried by the inner surface 54 of the annular ring 48. If the ribs 60 are not aligned in the circumferential direction C with the grooves 58 or conversely if the grooves 62 are not aligned in the circumferential direction C with the ribs 56, the beveled faces 60A and the elasticity of the spring 34 will allow a rotation of the clamp holder 36 about the longitudinal direction L so as to align the ribs 60, 56 with the grooves 58, 62. This rotation can be performed easily.
- the mine advance mechanism is maintained, during its insertion into the barrel 12, by a front end 32A of the clamp sleeve 32.
- the clamp sleeve 32 is free to rotate by to the gripper support 36 so that the gripper support 36 is rotatable about the longitudinal direction L to align the ribs 60, 56 with the grooves 58, 62.
- the plurality of ribs 60, 56 and grooves 58, 62 makes it possible to reduce the amplitude of the rotation of the clamp support 36 around the longitudinal direction L with respect to the annular ring 48.
- the clamp holder 36 can be inserted into the annular ring 48 to the abutment of the abutment surface 64 of the collar 36D of the clamp holder 36 against the abutment surface 48A of the annular ring 48 and up to the abutment of an annular shoulder 32B of the front end 32A of the clamp sleeve 32 against the front end 12A of the barrel 12.
- the clamp support 36 is locked in rotation about the longitudinal direction L with respect to the annular ring 48 by abutment engagement of the ribs 60, 56 with the grooves 58, 62.
- the mine advance mechanism is locked in rotation around the longitudinal direction L relative to the side button 18.
- the clamp sleeve 32 is not blocked. in rotation about the longitudinal direction L with respect to the side button 18.
- the mine advance mechanism 24 is assembled in the barrel 12 and the assembly formed by the mine reservoir 26 and the gum advance mechanism 22 is ready to be inserted. in the barrel 12 by the rear end 12B of the barrel 12.
- the mine advance mechanism 24 and in particular the shoulder 32B of the clamp sleeve 32 is held against the front end 12A of the barrel 12 via the conical tip 14 which is screwed on the front end 12A of the barrel 12 and the front end 26A of the mine reservoir 26 is inserted into the barrel 12.
- the assembly formed by the mine reservoir 26 and the gum advance mechanism 22 can be maintained by the tube 42 of the gum advance mechanism 22.
- the bevelled faces 76A and 72A, respectively ribs 76 and 72 will allow a rotation of the mine reservoir 26 around the longitudinal direction L so as to align the ribs 76, 72 with the grooves 74 , 78.
- This rotation can be performed easily. Indeed, the gum advance mechanism is maintained, during its insertion into the barrel 12, by the tube 42. However, as described above, the tube 42 is free to rotate with respect to the guide cylinder 38 and the mine reservoir 26, so that the mine reservoir 26 can rotate about the longitudinal direction L to align the ribs 76, 72 with the grooves 74, 78.
- the insertion of the front end 26A of the mine reservoir 26 into the third cylindrical portion 36E of the clamp support 36 is realized to longitudinal coupling coupling of the annular beads 80 carried by the outer surface 26D of the front end 26A of the mine reservoir 26 with the reliefs 70 of oblong shape carried by the intermediate portion 361 of the inner surface 36G of the support of clip 36.
- the mine reservoir 26 is thus locked in rotation around the longitudinal direction L with respect to the gripper support 36 by abutment engagement of the ribs 76, 72 with the grooves 74, 78.
- the mine reservoir 26 is locked in rotation about the longitudinal direction L with respect to the mine advance mechanism 24.
- the gum advance mechanism 24 is locked in rotation about the longitudinal direction L relative to the mine advance mechanism 24.
- the tube 42 is not locked in rotation about the longitudinal direction L with respect to the mine advance mechanism 26.
- the mine reservoir is also coupled longitudinally with the gripper support 36 by longitudinal snapping of the annular beads 80 carried by the outer surface 26D of the front end 26A of the mine reservoir 26 with the reliefs 70 of oblong shape carried by the intermediate portion 361 of the inner surface 36G of the clamp support 36.
- the mine advance mechanism 24 is coupled longitudinally to the mine reservoir 26.
- the clamp sleeve 32 may not be coupled to the mine reservoir 26, in the sense that, when the side button 18 is operated to advance a mine in the mechanical pencil 10, the clamp sleeve 32 does not move longitudinally with the mine reservoir 26.
- clamp holder 36 being locked in rotation about the longitudinal direction L relative to the side button 18, the mine reservoir 26 and the gum advance mechanism are also locked in rotation around the longitudinal direction L with respect to the side button 18.
- the side button 18 is itself locked in rotation about the longitudinal direction relative to the shaft 12, the mine advance mechanism 24, the mine reservoir 26 and the gum advance mechanism 22 are also locked in rotation about the longitudinal direction relative to the shank 12.
- the tube 42 is not locked in rotation about the longitudinal direction relative to the shank 12.
- the ring 116 is arranged around the protector 16 and inserted into the nose 14 which is screwed on the front end 12A of the barrel .
- the shoulder 32B is pinched between the front end 12A of the barrel 12 and a portion of the nose 14. The mechanical pencil 10 is thus assembled.
- the side button 18 is inserted into the barrel 12 before the insertion of the mine advance mechanism 24 and the mine advance mechanism 24 is inserted into the barrel before the insertion of the assembly formed of the mine reservoir 26 and the gum advance mechanism 22.
- the mechanical pencil 10 can be rechargeable.
- the longitudinal coupling between the mine reservoir 26 and the rubber feed mechanism 22 is dimensioned such that this coupling opposes a lower coupling force to the other longitudinal couplings, in particular this coupling opposes a coupling force. less longitudinal to the longitudinal coupling between the mine advance mechanism 24 and the mine reservoir 26.
- the longitudinal coupling between the mine reservoir 26 and the gum advance mechanism 22 gives way before the longitudinal coupling between the mine advance mechanism 24 and the mine reservoir 26 and gives access to the mine reservoir 26 which can therefore be filled with mines.
- the gum advance mechanism 22 is inserted into the barrel 12 and the rear end 26B of the mine reservoir 26, as previously described.
- the tube 42 is rotated about the longitudinal direction relative to the shaft 12 in a direction or in an opposite direction, the guide cylinder 38 being locked in rotation about the longitudinal direction relative to the barrel 12, the tenons of the eraser holder 40 inserted in the helical cams 112 of the tube 42 will transform the rotational movement of the tube 42 into a longitudinal translation movement of the eraser holder 40 and the eraser 44, advancing or move back the eraser 44.
- the shape of the tank body 26C is not limited to a cylinder.
- the tank body 26C could have a slightly conical shape.
- a cylinder may have a base that is not a circle.
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018542210A JP2019508291A (ja) | 2016-02-11 | 2017-02-08 | サイドボタン及び消しゴムディスペンサを備えたシャープペンシル、並びに、その組み立て方法 |
EP17707644.5A EP3414107B1 (fr) | 2016-02-11 | 2017-02-08 | Portemine a bouton lateral et distribution de gomme et procede d'assemblage |
CN201780010587.6A CN108698434B (zh) | 2016-02-11 | 2017-02-08 | 带有侧按钮和橡皮分配器的机械铅笔及组装方法 |
US16/076,647 US10668766B2 (en) | 2016-02-11 | 2017-02-08 | Mechanical pencil with a side button and an eraser dispenser and a method of assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1651101A FR3047690B1 (fr) | 2016-02-11 | 2016-02-11 | Portemine a bouton lateral et distribution de gomme et procede d'assemblage |
FR1651101 | 2016-02-11 |
Publications (1)
Publication Number | Publication Date |
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WO2017137697A1 true WO2017137697A1 (fr) | 2017-08-17 |
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ID=55752544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2017/050282 WO2017137697A1 (fr) | 2016-02-11 | 2017-02-08 | Portemine a bouton lateral et distribution de gomme et procede d'assemblage |
Country Status (6)
Country | Link |
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US (1) | US10668766B2 (fr) |
EP (1) | EP3414107B1 (fr) |
JP (1) | JP2019508291A (fr) |
CN (1) | CN108698434B (fr) |
FR (1) | FR3047690B1 (fr) |
WO (1) | WO2017137697A1 (fr) |
Families Citing this family (2)
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CN109899348B (zh) * | 2019-03-11 | 2020-07-24 | 张琳函 | 一种适用多规格铅笔端部的可拆式橡皮擦连接器 |
DE202023100351U1 (de) * | 2023-01-25 | 2023-02-27 | A. W. Faber-Castell COSMETICS GmbH | Wiederbefüllbarer Kosmetikstift |
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-
2017
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- 2017-02-08 JP JP2018542210A patent/JP2019508291A/ja active Pending
- 2017-02-08 CN CN201780010587.6A patent/CN108698434B/zh active Active
- 2017-02-08 US US16/076,647 patent/US10668766B2/en active Active
- 2017-02-08 EP EP17707644.5A patent/EP3414107B1/fr active Active
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Also Published As
Publication number | Publication date |
---|---|
CN108698434A (zh) | 2018-10-23 |
FR3047690A1 (fr) | 2017-08-18 |
US20190047320A1 (en) | 2019-02-14 |
CN108698434B (zh) | 2020-12-25 |
EP3414107B1 (fr) | 2023-06-21 |
FR3047690B1 (fr) | 2018-03-16 |
JP2019508291A (ja) | 2019-03-28 |
EP3414107A1 (fr) | 2018-12-19 |
US10668766B2 (en) | 2020-06-02 |
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