JP3856548B2 - Compound feeding tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention advances a plurality of writing axes such as a mechanical pencil axis, a ballpoint pen axis, a cosmetic core such as an eyebrow or an eyeliner, a stick-shaped object axis holding a pass, etc., and a slider connected to the writing axis. The present invention relates to a composite feeding tool that can be selectively fed out.
[0002]
[Prior art]
Conventionally, as this type of compound feeding tool, a plurality of writing shafts are accommodated in an outer cylinder, a slider is connected to the rear end of each writing shaft, and each slider is formed in a slot formed on a rear outer peripheral surface of the outer cylinder. Attached so as to be slidable in the axial direction, by moving one slider forward and holding it at the tip of the slot, the tip of the writing shaft connected to this slider protrudes from the tip of the outer cylinder It has been known.
[0003]
[Problems to be solved by the invention]
However, in this conventional compound feeding tool, when using a writing shaft in which the writing core is sent out by a knocking operation like a mechanical pencil shaft, the knocking operation is performed by knocking the slider. There is a drawback that it is difficult to knock.
[0004]
The present invention has been made in view of such a problem, and the invention according to claims 1 to 3 can also use a writing shaft in which a writing core is sent out by a knocking operation, and the knocking operation can be easily performed. An object of the present invention is to provide a composite feeding tool that can be used.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention is characterized in that a plurality of writing shafts are housed in an outer cylinder, a slider is connected to the rear end of each writing shaft, It is fitted in a slot formed on the outer peripheral surface so as to be slidable in the axial direction. The writing shaft and the slider are urged backward by an elastic body, and one slider is advanced and held at the tip of the slot. In the compound feeding tool in which the tip of the writing shaft connected to the slider is projected from the tip of the outer cylinder by
A knock member that is slidable in the axial direction with respect to the outer cylinder is attached to the rear end of the outer cylinder, and the knock member is formed in front of a locking projection formed on the knock member. Dropping from the outer cylinder is prevented by being locked to the outer cylinder using a tapered surface whose height gradually decreases as it goes.
The knock member has a plurality of legs extending in the axial direction, and the legs are slidably fitted into vertical ribs or vertical grooves formed on the inner peripheral surface between adjacent slots of the outer cylinder. And at least one of the writing shafts has a writing core sent out by a knocking operation, and a slider connected to the writing shaft is locked to the tips of two adjacent legs of the knocking member. The writing shaft is knocked by knocking the knocking member while being held at the tip of the slot and the slider is locked to the tip of the leg,
When all the writing shafts are retracted, the slider presses the knock member backward by the biasing force of the elastic body.
[0006]
When the knock member is knocked, the slider locked to the leg is knocked, and the writing core of the writing shaft connected to the slider locked to the tip of the leg is sent out.
[0007]
According to the second aspect of the present invention, a plurality of writing shafts are accommodated in the outer cylinder, a slider is connected to the rear end of each writing shaft, and each slider is axially connected to a slot formed on a rear outer peripheral surface of the outer cylinder. A compound feed that is slidably fitted in the direction and moves the slider forward and holds it at the tip of the slot so that the tip of the writing shaft connected to the slider protrudes from the tip of the outer cylinder. In the tool,
A knock member slidable in the axial direction with respect to the outer cylinder is attached to the rear end of the outer cylinder, and the knock member has a plurality of legs extending in the axial direction. It is slidably fitted in a vertical rib or a vertical groove formed on the inner peripheral surface between adjacent slots, and at least one of the writing shafts is a writing core sent out by a knocking operation. The slider connected to the writing shaft is held at the tip of the slot by being locked to the tip of the leg of the knock member, and the knock member is knocked in a state where the slider is locked to the tip of the leg. By doing so, the writing axis is knocked,
The vertical rib or the vertical groove has a narrow narrow portion and a wide portion outside the narrow portion and wider than the narrow portion, and the legs of the knock member are And having a shape suitable for the narrow part and the wide part.
According to a third aspect of the present invention, in the composite feeding tool according to the second aspect, the knock member has a locking projection that is locked to the rear end of the slot.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
In FIG. 1, an outer cylinder 10 includes a front cylinder 11 and a rear cylinder 12, and the front cylinder 11 and the rear cylinder 12 are detachably connected to each other by screwing. Reference numeral 13 denotes an elastic rubber provided on the user's gripping portion of the front tube 11.
[0009]
A plurality (four in the present embodiment) of writing axes are accommodated in the outer cylinder 10, and in this embodiment, the mechanical pencil shaft 14 and the ballpoint pen shaft 16 are used as the writing axes. . The mechanical pencil shaft 14 incorporates a known lead feeding mechanism that feeds the writing lead by advancing the chuck as disclosed in Japanese Utility Model Publication No. 6-32397, for example. When the mechanical pencil shaft 14 is knocked forward with the tip of the mechanical pencil shaft 14 protruding from the front end of the front tube 11, the front portion of the mechanical pencil shaft 14 that does not protrude from the front tube 11 is the inner wall of the front end of the front tube 11. The lead feeding mechanism advances, and the lead (writing lead) 15 is sent out. However, the writing axis is not limited to this combination, and may be a cosmetic core such as an eyebrow or eyeliner, a relatively soft writing core such as an eraser, a pass, etc. In that case, it is disclosed in Japanese Utility Model Publication No. 6-32397. The eraser is set in the guide cylinder like the eraser feeding mechanism, the writing core is held by a thin bar, and the thin bar is sent out in the same manner as the core 15 in the case of the mechanical pencil shaft 14, thereby It may be sent out.
[0010]
A slider 18 is connected to the rear ends of the writing axes 14 and 16. The slider 18 is formed with an operation protrusion 18a for the user to operate by hand on the outer side, and an operation protrusion 18b and an operation protrusion 18c are formed on the inner side thereof so as to be separated in the axial direction. ing. Each slider 18 is fitted in a slot 12b formed on the rear outer peripheral surface of the rear cylinder 12 so as to be slidable in the axial direction.
[0011]
The rear cylinder 12 is provided with a partition wall 12a having an insertion hole through which the writing shafts 14 and 16 are inserted. A spring 22 that is an elastic body is inserted between the partition wall 12a and each slider 18, and each spring 22 constantly biases the writing shafts 14 and 16 backward.
A knock member 24 slidable in the axial direction with respect to the outer cylinder 10 is attached to the rear end of the rear cylinder 12. The knock member 24 also serves as an eraser receiver in the present embodiment, and holds an eraser 26 at its rear end. However, when a stick-shaped object shaft holding an eraser is used as the writing shaft, the eraser 26 can be omitted, and a seal stamp may be held instead of the eraser 26. Reference numeral 28 denotes an eraser cap that protects the eraser 26 and may be omitted.
[0012]
The knock member 24 includes a locking projection 24a that is locked to the rear end of the slot 12b. The locking projection 24a is forcibly pushed from the rear of the rear cylinder 12 to engage with the rear end of the slot 12b. It can be attached to the outer cylinder 10 by being stopped, and the knock member 24 does not fall off from the outer cylinder 10 after being attached once. In order to facilitate this attachment, it is preferable that the front surface of the locking projection 24a is a tapered surface whose height gradually decreases toward the front as shown in the figure.
[0013]
Furthermore, the knock member 24 has a plurality of (four in this embodiment) legs 24b extending in the axial direction between the adjacent slots 12b. As shown in FIG. 2, the legs 24b are slidably fitted into the longitudinal ribs 12c formed on the inner peripheral surface between the slots 12b and 12b adjacent to each other in the circumferential direction of the rear cylinder 12. The inner side of each leg 24b has two guide portions 24c branched at the inner tip. The slider 18 is formed with a step portion 18d slidably in contact with the guide portion 24c, and the step portion 18d slides into contact with a pair of opposing guide portions 24c of adjacent legs 24b. The inside of the slot 12b can be smoothly slid in the axial direction.
[0014]
As shown in FIG. 3, the front end of the leg 24b is positioned at a midway position in the front-rear direction of the slot 12b, and the vertical rib 12c extends longer than the leg 24b by at least the knock allowance L. .
In the composite feeding tool configured as described above, when all the writing shafts 14 and 16 are retracted, the slider 18 is pressed against the rear portion of the slot 12b by the biasing force of the spring 22, and the slider 18 is knocked. By abutting between the legs 24b and 24b of the member 24, the knock member 24 is also pressed backward.
[0015]
Next, when the user advances the operation protrusion 18a of the slider 18 along the slot 12b in order to project a writing axis, the step 18d of the slider 18 comes into sliding contact with the guide portion 24c of the knock member 24. While being guided forward. Further, when the advanced slider 18 is pushed in the axial direction of the outer cylinder 10 from the place where the leg 24b is removed, the rear end of the slider 18 is locked to the front end of the leg 24b and held at the front end of the slot 12b. The tip of the writing shaft connected to the slider 18 projects from the tip of the outer cylinder 10 as shown in FIG.
[0016]
When the protruding writing shaft is the mechanical pencil shaft 14, it is necessary to send the writing core 15 by a knocking operation according to the consumption of the writing core 15. For this reason, when the knock member 24 is knocked from behind via the eraser cap 28, the leg 24b of the knock member 24 slides on the vertical rib 12c extended in consideration of the knock margin, and is engaged with the tip of the leg 24b. The mechanical pencil shaft 14 is knocked through the stopped slider 18. Thus, the writing lead 15 is sent out by a predetermined amount by the action of the built-in lead feeding mechanism.
[0017]
When writing is completed, or when switching to another writing axis, as in the conventional operation, when the slider 18 connected to the writing axis 16 that does not protrude is advanced, the operating protrusion 18b of the slider 18 is The slider 18 is in contact with the driven projection 18c of the slider 18 connected to the protruding writing shaft 14 and pushes the driven projection 18c outward. Retreats backward by the biasing force of the spring 22.
[0018]
As described above, since the knocking operation of the writing shaft can be performed by operating the knocking member 24 attached to the rear end of the outer cylinder 10, the knocking can be easily performed, and a new writing core 15 is sent out. The operation is simple when a large number of knocks must be performed.
FIG. 5 is a view corresponding to FIG. 2 showing the second embodiment of the present invention.
[0019]
In the present embodiment, instead of forming the vertical rib 12c on the outer cylinder 10, a vertical groove 12d is formed, and the leg 24b 'of the knock member 24 is fitted into the vertical groove 12d. This is the same as in the first embodiment. The vertical groove 12d has a narrow portion 12d1 having a narrow groove width, and a wide portion 12d2 that is outside the narrow portion 12d1 and wider than the narrow portion 12d1. The leg 24b also has a narrow part 24b1 and a wide part 24b2 so as to fit these, the narrow part 24b1 fits into the narrow part 12d1, and the wide part 24b2 fits into the wide part 12d2. Since the wide portion 24b2 cannot pass through the narrow portion 12d1, the leg 24b can slide stably in the outer cylinder 10 without easily derailing from the vertical groove 12d.
[0020]
【The invention's effect】
As described above, according to the first to third aspects of the invention, the writing core can be sent out by knocking the knock member attached to the rear end of the outer cylinder. Compared to knocking the slider itself, the knocking operation is simpler, especially when a large number of knocks have to be exchanged for a new writing core.
[0021]
Further, the legs of the knock member are slidably fitted into the longitudinal ribs or longitudinal grooves formed on the inner peripheral surface between adjacent slots of the outer cylinder, so that the legs can be stably stabilized in the outer cylinder. Can be arranged.
Furthermore, according to the invention of claim 2 , the vertical rib or the vertical groove has a narrow portion, and a wide portion outside the narrow portion, and the leg of the knock member is Since the shape conforms to the narrow portion and the wide portion, the leg can be prevented from easily derailing from the vertical rib or the vertical groove, and the leg can be slid more stably in the outer cylinder.
[0022]
Furthermore, according to the invention described in claim 3 , the knock member can be attached to the outer cylinder so as to be slidable and not fallen off.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of a composite feeding tool of the present invention.
FIG. 2 is a cross-sectional view of an outer cylinder and a knock member viewed along line 2-2 in FIG. The imaginary line indicates a slider that fits into the slot.
FIG. 3 is a cross-sectional view of a main part of an outer cylinder and a knock member viewed along line 3-3 in FIG.
4 is a cross-sectional view of a main part of an outer cylinder and a knock member viewed along line 4-4 in FIG. 2;
FIG. 5 is a view corresponding to FIG. 2 showing a second embodiment of the present invention.
[Explanation of symbols]
10 Outer cylinder 12b Slot 12c Vertical rib 12d Vertical groove 12d1 Narrow part 12d2 Wide part 14 Mechanical pencil axis (writing axis)
16 Ballpoint pen axis (writing axis)
18 Slider 24 Knock member 24a Locking projection 24b, 24b 'Leg

Claims (3)

Multiple writing shafts are housed in the outer cylinder, sliders are connected to the rear end of each writing shaft, and each slider is fitted in a slot formed on the outer peripheral surface of the outer cylinder so as to be slidable in the axial direction. The writing shaft and the slider are urged rearward by an elastic body, and the tip of the writing shaft connected to the slider is moved from the tip of the outer cylinder by advancing one slider and holding it at the tip of the slot. In the compound feeding tool to be in a protruding state,
A knock member that is slidable in the axial direction with respect to the outer cylinder is attached to the rear end of the outer cylinder, and the knock member is formed in front of a locking projection formed on the knock member. Dropping from the outer cylinder is prevented by being locked to the outer cylinder using a tapered surface whose height gradually decreases as it goes.
The knock member has a plurality of legs extending in the axial direction, and the legs are slidably fitted into vertical ribs or vertical grooves formed on the inner peripheral surface between adjacent slots of the outer cylinder. And at least one of the writing shafts has a writing core sent out by a knocking operation, and a slider connected to the writing shaft is locked to the tips of two adjacent legs of the knocking member. The writing shaft is knocked by knocking the knocking member while being held at the tip of the slot and the slider is locked to the tip of the leg,
A composite feeding tool, wherein the slider presses the knock member backward by the biasing force of the elastic body when all the writing shafts are retracted. Multiple writing shafts are housed in the outer cylinder, sliders are connected to the rear end of each writing shaft, and each slider is fitted into a slot formed on the outer peripheral surface of the outer cylinder so as to be slidable in the axial direction. In the compound feeding tool in which the tip of the writing shaft connected to the slider protrudes from the tip of the outer cylinder by advancing one slider and holding it at the tip of the slot,
A knock member slidable in the axial direction with respect to the outer cylinder is attached to the rear end of the outer cylinder, and the knock member has a plurality of legs extending in the axial direction. It is slidably fitted in a vertical rib or a vertical groove formed on the inner peripheral surface between adjacent slots, and at least one of the writing shafts is a writing core sent out by a knocking operation. The slider connected to the writing shaft is held at the tip of the slot by being locked to the tip of the leg of the knock member, and the knock member is knocked in a state where the slider is locked to the tip of the leg. By doing so, the writing axis is knocked,
The vertical rib or the vertical groove has a narrow narrow portion and a wide portion outside the narrow portion and wider than the narrow portion, and the legs of the knock member are A composite feeding tool having a shape suitable for the narrow part and the wide part.   The composite feeding tool according to claim 2, wherein the knock member has a locking projection that is locked to a rear end of the slot.

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