JPH11180092A - Composite feeding implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite feeding implement for simply conducting a knocking operation of a writing barrel by using the barrel for feeding a writing lead by the knocking operation. SOLUTION: A knocking barrel 24 is arranged at a rear end of a barrel 10, and an oscillating member 30 is mounted in the barrel 24. A cam 30a connectable to a slider 18 is extended forward from a tip of the barrel 24 at the member 30. And, when the slider 18 is locked to the tip of the barrel 24, it is held at an end of a slot 12b, and the cam 30a is oscillated to be engaged with the other slider 18. When the other slider 18 is forwarded, the cam 30a engaged with it disengages the barrel 14 locked to the end of the barrel 14. The barrel 14 is knocked in the state that the slider 18 is locked to the end of the barrel 24, thereby knocking a mechanical pencil barrel 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to connecting a plurality of writing shafts such as a mechanical pencil shaft, a ballpoint pen shaft, a cosmetic core such as an eyebrow or an eyeliner, a rubber shaft for holding an eraser, a pass and the like to the writing shaft. The present invention relates to a composite dispensing tool that can be selectively dispensed by advancing a given slider.

[0002]

2. Description of the Related Art Conventionally, as a composite feeding tool of this type, a plurality of writing shafts are housed in an outer cylinder, sliders are connected to the rear end of each writing shaft, and each slider is attached to the outer peripheral surface of the rear portion of the outer cylinder. The slider is inserted into the formed slot 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. A known state is known.

[0003]

However, in the conventional composite feeding tool, when using a writing shaft such as a mechanical pencil shaft whose writing lead is sent out by a knocking operation, the knocking operation knocks the slider. However, since the slider is located on the side peripheral portion of the outer cylinder, there is a disadvantage that knocking is difficult.

The present invention has been made in view of such problems, and the inventions according to claims 1 to 4 can also use a writing shaft whose writing lead is sent out by a knocking operation.
It is an object of the present invention to provide a composite feeding tool capable of easily performing the knocking operation.

[0005]

According to the first aspect of the present invention, a plurality of writing shafts are housed in an outer cylinder, and a slider is connected to a rear end of each writing shaft. Each slider is axially slidably fitted in a slot formed on the rear outer peripheral surface of the outer cylinder, and is connected to this slider by advancing one slider and holding it at the tip of the slot. In the composite feeding tool in which the tip of the writing shaft protrudes from the tip of the outer cylinder, a knock cylinder that extends movably in the axial direction in the rear portion of the outer cylinder is provided at the rear end of the outer cylinder, A swing member that can swing in the radial direction is attached to the knock cylinder, and the swing member has a cam portion extending forward from the tip of the knock cylinder and capable of engaging with the slider. And
While the slider is locked at the tip of the knock cylinder, the slider is held at the tip of the slot and the cam portion swings to engage with another slider,
When the other slider moves forward, the cam portion engaged with the other slider can release the lock of the slider locked at the tip of the knock cylinder, and at least one of the writing shafts is written by knocking operation. The lead is sent out, and the knocking operation of the writing shaft is performed by knocking the knocking cylinder while the slider connected to the writing shaft is locked at the tip of the knocking cylinder. I do.

When it is desired to use one writing shaft, it is possible to lock one end of the knock cylinder and hold it at the front end of the slot by advancing one slider as in the conventional operation. Thus, the writing shaft connected to the slider protrudes from the tip of the outer cylinder, so that writing is possible. If the writing shaft protruding from the tip of the outer cylinder is to send the writing lead by knocking, knocking the knock cylinder at the rear end of the outer cylinder will knock the slider locked at the tip. And the writing lead of the writing shaft connected to the slider is sent out.

When it is desired to store the writing shaft protruding from the tip of the outer cylinder, when one of the other sliders is advanced in the same manner as in the conventional operation, the cam portion engaged with the other slider causes the knocking of the slider. The slider can be retracted to release the engagement with the distal end of the cylindrical body, and the writing shaft connected to the slider can be stored. Claim 2
In the invention described in claim 1, in the invention described in claim 1, a plurality of vertical grooves are formed in the outer peripheral surface of the knock cylinder body in the axial direction corresponding to the slots, and each slider slides in each vertical groove. It is characterized by doing.

[0008] According to the third aspect of the present invention, the first aspect of the present invention.
Or each of the sliders has a cam surface engageable with the cam portion. The forward movement of the slider is changed by the cam surface of the slider into a swinging motion of a cam portion engaged with the slider, and the slider locked at the tip of the knock cylinder is released by the swinging motion of the cam portion. be able to.

Further, according to the invention described in claim 4, according to claim 1,
(2) In the slider described in (2), each slider has two cam surfaces that can engage with the cam portion and swing the cam portion in directions different from each other. The forward movement of the slider is changed by the cam surface of the slider into a swinging motion of a cam portion engaged with the slider, and the slider locked at the tip of the knock cylinder is released by the swinging motion of the cam portion. be able to. The plurality of cam surfaces of the slider swing in different directions to the cam portions. The direction of the force applied from different cam surfaces to the cam portion can be changed depending on the degree of engagement between the cam portion and the slider. Accordingly, even when a slider at an oblique position other than directly in front of the slider being moved forward is locked at the tip of the knock cylinder, the cam portion can be swung in the direction of the slider.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG.
Is composed of a front cylinder 11 and a rear cylinder 12.
The rear cylinder 12 is detachably connected to each other by screwing. Reference numeral 13 denotes an elastic rubber provided on a grip portion of the front cylinder 11 by a user.

A plurality of (four in the present embodiment) writing shafts are housed in the outer cylinder 10, and in the present embodiment,
As the writing shaft, one mechanical pencil shaft 14 and three ballpoint pen shafts 16 (the front and rear ballpoint shafts 16 are not visible in FIG. 1) are used. A known lead sending mechanism for sending a writing lead by advancing a chuck, for example, as disclosed in Japanese Utility Model Publication No. 6-32397, is incorporated in the mechanical pencil shaft 14. When the mechanical pencil shaft 14 is knocked forward with the distal end of the mechanical pencil shaft 14 protruding from the distal end of the front cylinder 11, the front end of the mechanical pencil shaft 14 that does not protrude from the front cylinder 11 becomes an inner wall of the distal end of the front cylinder 11. , The lead delivery mechanism advances, and the lead (writing lead) 15 is delivered. However,
The writing shaft is not limited to this combination, and may be a cosmetic core such as an eyebrow or an eyeliner, or a relatively soft writing core such as an eraser or a pass.
No. 32397, the eraser is set in a guide cylinder like an eraser feeding mechanism, a writing lead is held by a thin rod, and the thin rod is sent out in the same manner as the lead 15 in the case of the mechanical pencil shaft 14. Alternatively, a writing core may be sent.

A slider 18 is connected to the rear end of each of the writing shafts 14, 16. The slider 18 has an operation projection 18a formed on the outside thereof for a user to operate by hand, and a projection 18b projecting inward at an intermediate position in the front-rear direction on the inside thereof. ing. The protruding portion 18b is engageable with a cam portion 30a of the swing member 30 described later, and as shown in FIG.
Has a cam surface 18c1 and a cam surface 18c2 in which the projection lines of the respective normals to the cross section in FIG. 4 are oriented in different directions. The cam surface 18c1 and the cam surface 18c2 of each slider 18 have a line-symmetric relationship with respect to a radial center line connecting the center of the slider 18 and the axis of the outer cylinder 10, and in this example, are mutually 120. At an angle of degrees.
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.

Each of the rear cylinders 12 has a writing shaft 14 therein.
There is provided a partition wall 12a having an insertion hole through which the insertion hole 16 is inserted. A spring 22, which is an elastic body, is interposed between the partition wall 12a and each slider 18, and each spring 22 constantly urges the writing shafts 14, 16 backward. At the rear end of the rear cylinder 12, there is provided a knock cylinder 24 extending in the rear part of the outer cylinder 10 so as to be movable in the axial direction with respect to the outer cylinder 10. In the present embodiment, knock cylinder 24 also serves as an eraser receiver, and holds eraser 26 at its rear end. However, when a rod-shaped object shaft holding an eraser is used as the writing shaft, the eraser 26 can be omitted.
In place of 6, a seal may be held. Also, reference numeral 28
Is an eraser cap for protecting the eraser 26, and can be omitted.

The knock cylinder 24 has a locking projection 24a which is locked to the rear end of the outer cylinder 10.
Can be attached to the outer cylinder 10 by forcibly pushing the rear cylinder 12 from behind and locking the rear end.
Once attached, knock cylinder 24 does not fall off outer cylinder 10. Further, the knock cylinder 24 has a plurality of longitudinal grooves 2 extending in the axial direction corresponding to the slots 12b.
4b are formed, and as shown in FIG.
The slider 18 can slide along 4b.

FIG. 1 or FIG.
As shown in the figure, the slot 12b is positioned halfway in the front-rear direction. A swing member 30 is attached to the throttle portion 24c formed inside the knock cylinder 24 so as to be able to swing in the radial direction, and the tip of the swing member 30 extends forward from the tip of the knock cylinder 24. At the tip
A cam portion 30a that is enlarged in the radial direction is formed. The inclined surface that gradually expands in the outer radial direction as it goes to the front of the cam portion 30a is a cam surface 30b, and when the swinging member 30 approaches the swinging slider 18, the cam of the slider 18 moves. It is adapted to engage with the surface 18c1 and / or the cam surface 18c2.

In the above-described composite feeding device, 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 urging force of the spring 22, and the knocking is performed. The cylinder 24 is also pressed rearward by the slider 18. The swing member 30 is also on the axis of the outer cylinder 10 without receiving a force in a specific direction from the specific slider 18.

Next, in order to make a certain writing shaft protrude, the user inserts the operating projection 18a of the slider 18 into the slot 12
b, the longitudinal groove 24b of the knock cylinder 24
The slider 18 slides in the slot 12b while being guided by the slider 18 to prevent the slider 18 from swinging sideways.
Further, the slider 18 that has been advanced is moved to the knock cylinder 24.
When it is pushed toward the axis of the outer cylinder 10 from the position where it has disappeared, the rear end of the slider 18 is locked at the front end of the knock cylinder 24, is held at the front end of the slot 12 b, and is connected to this slider 18. As shown in FIG. 2, the tip of the writing shaft projects from the tip of the outer cylinder 10.

When the protruding writing shaft is the mechanical pencil shaft 14, it is necessary to send out the writing lead 15 by knocking in accordance with the consumption of the writing lead 15. For this reason,
When the knock cylinder 24 is knocked from behind via the eraser cap 28, the knock cylinder 24 pushes the slider 18 to knock the mechanical pencil shaft 14. Thus,
The writing lead 15 is delivered by a predetermined amount by the action of the built-in lead sending mechanism.

By the way, the slider 18 is connected to the knock cylinder 2.
When the slider 18 is pushed toward the axis in order to lock the tip of the slider 4, the slider 18 pushes the cam portion 30a of the swinging member 30 in the same direction. Cam surfaces 18c1 and 1
8c2. FIG. 4 shows this state, and the inner surface 18 of the slider 18 at the upper side in FIG.
d presses the cam portion 30a. As a result, the cam portion 30a is eccentric, and the slider 18 on the left side in FIG.
Cam surface 18c2 and the slider 18 on the right side in FIG.
4 and the slider 18 on the lower side in FIG.
With the cam surface 18c1 and the cam surface 18c2. In FIG. 4, the overlapping portions between the cam surfaces 18c1 and 18c2 of the slider 18 and the cam portion 30a are engaged portions. On the other hand, the cam portion 30a forms a gap with the cam surface 18c1 of the slider 18 on the left side in FIG. 4 and the cam surface 18c2 of the slider 18 on the right side in FIG. Absent. In other words,
The engagement between the cam portion 30a and the slider 18 is such that the engagement area of the cam surface 18c1 and / or 18c2 of the slider 18 facing the slider 18 that is advancing is the cam surface 18c1 and / or 18c2 Are larger than the engagement area. That is, in FIG. 4, the cam portion 30a does not necessarily form a gap with the cam surface 18c1 of the slider 18 on the left side in FIG. 4 and the cam surface 18c2 of the slider 18 on the right side in FIG. There is no problem if the engagement area is not smaller than the cam surface 18c2 of the slider 18 on the left side in FIG. 4 facing the cam portion 30a and the slider 18 on the right side in FIG. It is smaller than the engagement area with the cam surface 18c1.

When the writing is completed or another writing axis is to be changed, as in the conventional operation, when one of the sliders 18 connected to the writing axis 16 which does not protrude is advanced, this slider 18 is moved. From the cam surface 18c1 and / or the cam surface 18c2,
a receives the force F. Since the force F has a force F1 that pushes the advancing slider 18 in the outer diameter direction as a component force, the locking between the advancing slider 18 and the tip of the knock cylinder 24 is released, The slider 18 retreats rearward by the urging force of the spring 22. Note that the engagement area of the cam surface c1 or the cam surface 18c2 of the slider 18 facing the slider 18 that is advancing is larger than the engagement area of the cam surface c1 or the cam surface 18c2 of the slider 18 that does not face the slider 18. Therefore, the component of force F must be
There will be a force to push the advancing slider 18 in the outer radial direction.

As described above, since the knocking operation of the writing shaft can be performed by operating the knocking cylinder 24 attached to the rear end of the outer cylinder 10, knocking can be easily performed and a new writing operation can be performed. The operation is simple when a large number of knocks have to be performed, such as when the core 15 is sent out. A second embodiment of the present invention will be described with reference to FIGS. In the drawings, the same members as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the outer cylinder 10 of the present embodiment, three writing shafts are housed, and one mechanical pencil shaft 14 is provided.
And two ball-point pen shafts 16 (in FIG. 5, the front ball-point pen shaft is not visible). Each writing axis 1
Sliders 18 ′ are connected to the rear ends of 4 and 16. As the slider 18 ', a component having the same cam surface 18c1 and cam surface 18c2 as the slider 18 similar to that of the first embodiment can be used as a common part, but in the case where three writing axes are used, The projection line on the cross section in FIG. 6 of the normal line of the cam surface 18 ′ c may be formed from one surface that coincides with the inner diameter direction of the outer cylinder 10.

According to such a configuration, in order to protrude a certain writing shaft, as in the first embodiment, the slider 18 'is advanced along the slot 12b so that the slider 18' is moved. It can be locked at the tip of the knock cylinder 24 and held at the tip of the slot 12b. Also, when the writing shaft is retracted, as in the first embodiment, when any of the sliders 18 'which have not advanced is advanced, the cam portion 30a is moved from the cam surface 18'c of the slider 18'. As there is always a force F'1 that pushes the advancing slider 18 'in the outer radial direction as a component of the force F' received by the force, the force between the advancing slider 18 'and the knock cylinder 24 is always present. The lock is released, and the slider 18 ′ retreats rearward by the urging force of the spring 22.

[0024]

As described above, claims 1 to 4
According to the described invention, the knocking of the knocking cylinder at the rear end of the outer cylinder enables the writing core to be sent out. It is easy to operate, especially when a large number of knocks have to be made by replacing it with a new writing lead.

Further, according to the second aspect of the present invention, since the slider slides in the vertical groove formed on the outer peripheral surface of the knock cylinder, the slider slides stably without rolling. be able to. Further, according to the third aspect of the present invention, since each slider has a cam surface which can be engaged with the cam portion, the forward movement of the slider is performed by the cam surface of the slider, and the cam portion which engages with the slider. Since the swing operation is changed to the swing operation, the slider with the cam portion locked to the tip of the knock cylinder can be reliably released.

According to the fourth aspect of the present invention, each slider has a plurality of cam surfaces capable of engaging with the cam portion and swinging the cam portions in directions different from each other. By this, the forward movement of the slider is changed to the swinging movement of the cam portion that engages with the slider, so that the slider whose cam portion is locked at the tip of the knock cylinder can be reliably released. Since the plurality of cam surfaces of the slider swing the cam portion in different directions, the direction of the resultant force applied from different cam surfaces to the cam portion can be changed depending on the degree of engagement between the cam portion and the slider. Accordingly, even when a slider at an oblique position other than directly in front of the slider being moved forward is locked at the tip of the knock cylinder, the cam portion can be swung in the direction of the slider.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of a composite feeding device according to the present invention, showing a state where all writing shafts are retracted.

FIG. 2 is a longitudinal sectional view showing a first embodiment of the composite feeding device according to the present invention, and shows a state where a mechanical pencil shaft is advanced.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a sectional view taken along the line 4-4 in FIG. 2;

FIG. 5 is a vertical sectional view showing a main part of a second embodiment of the present invention.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

[Explanation of symbols]

 Reference Signs List 10 outer cylinder 12b slot 14 mechanical pencil axis (writing axis) 16 ballpoint pen axis (writing axis) 18, 18 'slider 18c1 cam surface 18c2 cam surface 18'c cam surface 24 knock cylinder 24b vertical groove 30 swing member 30a cam portion

Claims (4)

[Claims] 1. A plurality of writing shafts are housed in an outer cylinder, sliders are connected to the rear ends of the respective writing shafts, and each slider is slidable in an axial direction into a slot formed on the outer peripheral surface of a rear portion of the outer cylinder. A composite feeding tool that is fitted into the slider and advances one slider to be held 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. At the rear end of the outer cylinder, a knock cylinder is provided which extends movably in the axial direction in the rear portion of the outer cylinder, and a swing member which can swing in the radial direction is attached to the knock cylinder. The moving member is formed with a cam portion extending forward from the tip of the knock cylinder and capable of engaging with the slider. The slider is locked at the tip of the knock cylinder, whereby the slider is moved into the slot. Hold at the tip While the cam portion swings and engages with another slider, while the other slider moves forward so that the cam portion engaged with this slider is locked at the tip of the knock cylinder. In addition, at least one of the writing shafts has a writing lead sent out by a knocking operation, and the knocking is performed in a state where the slider connected to the writing shaft is locked at the tip of the knocking cylinder. A composite feeding tool characterized in that the writing shaft is knocked by knocking the cylinder. 2. A plurality of vertical grooves are formed in the outer peripheral surface of the knock cylinder body in the axial direction corresponding to the slots, and each slider slides in each vertical groove. 2. The composite feeding tool according to 1. 3. The composite feeding tool according to claim 1, wherein each slider has a cam surface that can be engaged with the cam portion. 4. The composite feeding device according to claim 1, wherein each slider has two cam surfaces that can engage with the cam portion and swing the cam portion in directions different from each other.