JP2006321074A - Spare lead container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spare lead container, which is easy for use, has a simple structure and, at the same time is advantageous on manufacturing cost as compared with many spare lead containers on the market. <P>SOLUTION: In this spare lead container 1, two of a small and a large vertical spare lead through-holes 12a and 13a are provided at the left and the right of the top walls 6a and 7a of box-like bodies 6 and 7 forming a lead housing part 19. At the same time, at the top walls 6a and 7a, a pair of supporting pieces 8 and 9 are provided in upright separated from each other in before and after. A lead discharging part 3 having a horizontal spare lead passage 15 is journaled pivotably about a longitudinal axis line. When the lead discharging part 3 is pivoted by 90 degrees clockwise, one spare lead through-hole 12a between the spare lead through-holes communicates with the spare lead passage 15, while, when the lead discharge part 3 is pivoted by 90 degrees counterclockwise, the other spare lead through-hole 13a communicates with the spare lead passage 15. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mechanical pencil replacement core container.

Various types of replacement core containers are commercially available. However, these commercially available products are not always satisfactory from the viewpoint of ease of use and manufacturing cost.
For example, Patent Document 1 proposes a replacement core container in which a replacement core can be directly replenished from a replacement core container to a mechanical pencil core tank, and the replacement core can be easily replenished without getting hands dirty. On the other hand, there is a problem that the manufacturing cost increases because the structure is complicated.
JP 2000-198292

  In view of the above problems, an object of the present invention is to provide a replacement container that is easy to use and has a simple structure, and is advantageous in terms of manufacturing cost as compared with many commercially available replacement core containers. .

The above-described problems are solved by the invention having the following configuration, as shown in each of the claims.
(1) Two upper and lower vertical replacement core through holes are provided on the left and right sides of the top wall of the box-shaped body forming the core housing portion, and a pair of support pieces spaced apart in the front-rear direction are provided on the top wall. And when the core discharge portion having a left and right replacement core passage on the support piece is pivotally supported about an axis in the front-rear direction and rotated 90 degrees in one direction. When one of the core through holes communicates with the spare core passage and is rotated 90 degrees in the opposite direction, the other spare core through hole communicates with the spare core passage. It shall be a replacement core container.

  (2) In the above item (1), the first locking projection is provided on at least one of the two opposing surfaces of the pair of front and back support pieces and the front and rear surfaces of the core discharging portion. In addition, in the state where the first engaging recess is provided on the other side, the replacement core passage in the core discharge portion is not in communication with any of the two large and small replacement core through holes in the top wall of the core housing portion. The stop projection is locked to the first engagement recess to restrict the rotation of the core discharge portion.

  (3) In the above item (1) or (2), the second of the two opposing surfaces of the pair of front and rear support pieces and the front and rear surfaces of the core discharge portion is provided on one of the opposing surfaces. In the state which provided the latching protrusion and provided the 2nd engagement recessed part on the other, and the replacement | exchange core channel | path in a core discharge | emission part is communicating with either of the large and small replacement core through-holes in the top wall of a core accommodating part. The second locking projection is locked to the second engaging recess to restrict the rotation of the core discharging portion.

  (4) In the above item (3), the functions of the first locking protrusion and the second locking protrusion are shared by one locking protrusion.

  (5) In any one of the above items (1) to (4), of the two large and small replacement core through holes, a large replacement core through hole having a size that allows a plurality of replacement cores to pass simultaneously. In addition, the small replacement core through-hole is of a size that allows only one replacement core to pass through, and the replacement core passage of the core discharge portion has a size that is equal to or larger than the larger replacement core through-hole. .

  (6) In any one of the above items (1) to (5), the left and right ends of the core discharge portion are formed in a cylindrical shape, and the outer diameter of the cylindrical portion at the left and right outlets of the replacement core passage is sharpened. Make it smaller than the inner diameter of the pencil lead tank.

According to the present invention, the following effects can be obtained.
According to the first aspect of the present invention, in use, depending on the number of replacement cores to be replenished, either a large or small replacement core through-hole is selected, and the core discharge portion is rotated 90 or counterclockwise. It is easy to use and has a simple structure because it can be refilled into the mechanical pencil lead tank just by turning it once, so it is easy to use and has a simple structure, so it is also cheaper to manufacture. It is advantageous.

  According to the second aspect of the present invention, the replacement core passage of the core discharge portion communicates with the replacement core through hole of the core storage portion when the replacement core is not used, and the replacement core is replaced. It can prevent falling from the container.

  According to the third aspect of the present invention, the communication state between the replacement core passage of the core discharge portion and the replacement core through hole of the core storage portion is stably maintained during use when the replacement core is being replenished. Therefore, the refilling work of the replacement core can be performed smoothly.

  According to invention of Claim 4, the frictional resistance at the time of rotating a core discharge part decreases, and the replenishment work of a replacement core can be performed with a small force.

  According to the fifth aspect of the present invention, according to whether the number of replacement cores to be replenished is one or a plurality of replacement cores, a replacement core through hole can be appropriately selected to perform the replenishment work efficiently.

  According to the sixth aspect of the present invention, since the lead tank of the mechanical pencil can be directly replenished from the spare lead passage of the lead discharging part, the replacement work of the spare lead can be performed without soiling the hand.

  1 and 2 are a perspective view and a front view, respectively, of the first embodiment of the extra lead container of the present invention, FIG. 3 is a longitudinal sectional view taken along line III-III in FIG. 1, and FIG. It is a disassembled perspective view of a core container.

  The replacement core container (1) includes a container body (2) and a core discharge part (3). The container body (2) is composed of a pair of body members (4) and (5) as shown in FIG.

  Each of the body members (4) and (5) has a vertically long rectangular shape with flat box-like bodies (6) and (7) whose opposing surfaces are open, and the top walls of the box-like bodies (6) and (7). (6a) The support piece (8) (9) is provided upright from the outer end of (7a).

  Each opposing surface of the top wall (6a) (7a), the bottom wall (6b) (7b), and the left and right side walls (6c) (7c) forming the peripheral wall of each box-like body (6) (7) has 1 A plurality of small projections (10) and engagement holes (11) for connecting the pair of main body members (4) and (5) are provided at corresponding positions.

  On the left and right of the inner end surfaces of the top walls (6a) and (7a), semi-circular cuts for forming two large and small vertical replacement core holes (12) and (13) (see Fig. 2). Notches (12a) and (13a) are provided.

  The support pieces (8) and (9) have the same left-right width as the box-like bodies (6) and (7), are substantially square in front view, and have a core discharge part (3) at the center. Shaft holes (8a) and (9a) for pivotal support are provided.

  A first engagement recess (14a) is provided on the upper side of the periphery of the shaft hole (9a) in one support piece (9), and second engagement recesses (14b) (14c) are provided on the left and right sides, respectively. Yes.

  The core discharge portion (3) is substantially the same as the separation width between the pair of support pieces (8) and (9) in a state in which the pair of body members (4) and (5) are integrated by contacting the opposing surfaces. It has a wall thickness and the same width as the support pieces (8) and (9), and has a downward-facing home base shape when viewed from the front. In the upper part of the lead discharging part (3), a left and right replacement lead passage (15) is provided. Below the replacement core passage (15) on the front and rear surfaces of the core discharge section (3), the core discharge section (3) is pivotally supported between a pair of support pieces (8) and (9) in the container body (2). Protruding shafts (16a) and (16b) are provided. A first locking projection (17) is provided above the protruding shaft (16) on the front surface of the core discharging section (3).

The extra lead container (1) is assembled as follows.
First, of the pair of body members (4) and (5), one body member (5) is placed on the work table with the inner surface of the box-like body (7) facing upward. Next, the replacement core (18) is accommodated in the box-shaped body (7). Next, the protruding shaft (16a) and the first locking protrusion (17) on the front surface of the core discharging portion (3) are respectively connected to the shaft hole (9a) in the support piece (9) of the body member (5) and the first locking projection (17). It engages with the engaging recess (14a). Next, the other body member (4) is covered with the opening surface of the box-like body (6) facing downward, and the protruding shaft (16b) on the rear surface of the core discharge portion (3) is attached to the shaft of the body member (4). At the same time as fitting into the hole (8a), both the main body members (4) and (5) are fitted into all the small projections (10) and the engagement holes (11) at corresponding positions, By integrating the members (4) and (5), the replacement core container (1) is obtained.

  As shown in FIG. 2, a core housing part (19) is formed between the box-like bodies (6) and (7) of the main body members (4) and (5), and the top wall of the core housing part (19) is formed. (19a) is formed with a small replacement core through hole (12) that allows a single replacement core to pass to the left and right and a large replacement core passage hole (13) through which a plurality of replacement cores can pass simultaneously. Has been.

  The lead discharging part (3) is rotatable about the front and rear projecting shafts (16a) and (16b) (see FIGS. 3 and 4), and the first catching of the lead discharging part (3). The protrusion (17) is locked to the first engagement recess (14a) of the container body (2), so that the rotation of the core discharge portion (3) when not in use is restricted.

  FIG. 5 is a front view of the main part when the lead discharging part (3) is rotated 90 degrees counterclockwise.

  The lead discharging part (3) is pushed by the upper right angle of the lead discharging part (3) in FIG. 15) and the small replacement core through hole (12) of the container body (2) come to communicate with each other, and the first locking projection (17) is a shaft hole on which the projecting shaft (16a) is pivotally supported. The position is stabilized by the second engaging recess (14b) on the left side of (9a), so that the position stability of the core discharging portion (3) is maintained.

In this state, by turning the top and bottom of the replacement core container (1) upside down, only one replacement core (18) passes through the replacement core (18) housed in the core housing portion (19). Take out the core tank of the mechanical pencil (not shown) through the small core replacement hole (12) and the replacement core passage (15) and take it out of the replacement core container (1). Can do. After replenishment, the lead discharging part (3) may be returned to the state shown in FIG.
In addition, when the top of the replacement core container (1) is reversed, the replacement core (18) partially protrudes from the large replacement core through hole (13), but the slope edge of the core discharge section (3) The replacement core (18) is prevented from jumping out by being blocked by (3a).

  FIG. 6 is a front view of the main part when the lead discharging part (3) is rotated 90 degrees clockwise from the state shown in FIG.

  The replacement core passage (15) of the core discharge section (3) and the large replacement core passage hole (13) of the container body (2) come to communicate with each other, and the first locking projection (17) (16a) is locked in the second engagement recess (14c) on the right side of the shaft hole (9a) on which the shaft is supported, so that the position stability of the core discharge portion (3) is maintained. .

  In this state, by reversing the top and bottom of the replacement core container (1), the plurality of replacement cores (18) accommodated in the core accommodating portion (19) is replaced by the plurality of replacement cores (18). The outside of the change core container (1) via a large change core passage hole (13) that can be passed simultaneously, and a change core passage (15) having a size equal to or larger than the large change core passage hole (13) And can be refilled into the mechanical pencil lead tank.

Therefore, if desired, the state of either the state shown in FIG. 5 or FIG. 6 is selected, and the replacement core (18) accommodated in the replacement core container (1) is efficiently put into the mechanical pencil core tank. Can be replenished.
Moreover, when the top and bottom of the replacement core container (1) is reversed, the replacement core (18) partially projects from the small replacement core through hole (12), but the core discharge section (3 ) Is prevented by the slope edge (3a) so that the replacement core (18) does not jump out.

  In the embodiment shown in FIGS. 1 to 6, the first locking protrusion (17) is individually engaged with both the first engagement recess (14a) and the second engagement recess (14b) (14c). The first locking projection (17) is locked only to the first engagement recess (14a), and a second locking projection is separately provided on the core discharge portion (3). The positions of the second engaging recesses (14b) and (14c) may be changed so that the second locking protrusions are locked to the second engaging recesses (14b) and (14c).

  FIG. 7 shows the second embodiment and corresponds to FIG.

  The replacement core container (20) shown in FIG. 7 is different from the first embodiment shown in FIGS. 1 to 6 in that the left and right ends of the core discharge part (22) pivotally supported by the container body (21) are cylindrical. In other words, the outer diameter L of the cylindrical portion at the left and right outlets of the replacement core passage (23) is made smaller than the inner diameter of the mechanical pencil core tank. By doing so, the outlet portion of the replacement core passage (23) of the core discharge section (22) can be applied to the core tank of the mechanical pencil, and the replacement core can be directly replenished. Therefore, the replacement core can be easily replenished.

It is a perspective view which shows 1st Embodiment of the spare core container of this invention. Similarly, it is a front view. It is the III-III line longitudinal cross-sectional view in FIG. It is a disassembled perspective view of the replacement core container shown in FIG. FIG. 3 is a front view of the main part when the lead discharging part is rotated 90 degrees counterclockwise from the state shown in FIG. 2. FIG. 3 is a front view of the main part when the lead discharging part is rotated 90 degrees clockwise from the state shown in FIG. 2. It is a front view which shows 2nd Embodiment of the spare core container of this invention.

Explanation of symbols

(1) Extra lead container
(2) Container body
(3) Core discharge part
(3a) Slope edge
(4) (5) Body member
(6) (7) Box-shaped body
(6a) (7a) Top wall
(6b) (7b) Bottom wall
(6c) (7c) Side wall
(8) (9) Support piece
(8a) (9a) Shaft hole
(10) Small protrusion
(11) Engagement hole
(12) (13) Replacement core hole
(14a) First engaging recess
(14b) (14c) Second engaging recess
(15) Replacement core passage
(16a) (16b) Projection shaft
(17) First locking projection
(18) Extra lead
(19) Core housing part
(19a) Top wall
(20) Replacement core container
(21) Container body
(22) Core discharge part
(23) Replacement core passage

Claims (6)

  While providing two large and small vertical replacement core through holes on the left and right of the top wall of the box-shaped body that forms the core housing portion, a pair of support pieces spaced from each other in the front-rear direction are erected on the top wall, And when the core discharge part which has the left-right direction extra lead path in this support piece is pivotally supported about the axis line of the front-back direction, and is rotated 90 degree | times to one direction, the said extra lead passage hole One of the replacement core through holes communicates with the replacement core passage, and the other replacement core through hole communicates with the replacement core passage when rotated 90 degrees in the opposite direction. An extra lead container characterized by.   A first locking projection is provided on at least one of the two opposing faces of the pair of front and rear support pieces and the front and rear faces of the core discharge portion, and the first engagement recess is provided on the other. The first engaging projection is engaged with the first engaging recess in a state where the replacement core passage in the core discharge portion is not in communication with any of the two large and small replacement core through holes in the top wall of the core housing portion. The replacement core container according to claim 1, wherein the rotation is stopped and the rotation of the core discharge portion is restricted.   A second locking projection is provided on one of at least one of the two opposing surfaces of the pair of front and rear support pieces and the front and rear surfaces of the core discharging portion, and the second engaging recess is provided on the other. The second locking projection is engaged with the second engagement recess in a state where the replacement core passage in the core discharge portion communicates with one of the two large and small replacement core through holes in the top wall of the core housing portion. The replacement core container according to claim 1 or 2, characterized in that the rotation of the core discharge part is restricted to stop.   The replacement core container according to claim 3, wherein the functions of the first locking protrusion and the second locking protrusion are shared by one locking protrusion.   Of the two large and small replacement core holes, the large replacement core hole has a size that allows a plurality of replacement cores to pass through at the same time, and only one replacement core can pass through the small replacement core hole. The replacement core according to any one of claims 1 to 4, wherein the replacement core passage of the core discharge part has a size equal to or greater than that of the larger replacement core through hole. container.   The left and right ends of the lead discharge portion are formed in a cylindrical shape, and the outer diameter of the cylindrical portion at the left and right outlets of the replacement core passage is smaller than the inner diameter of the lead pencil lead tank. The extra lead container in any one of -5.

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