Replaceable core box

Abstract

The invention provides a replacement core box which can obtain an operation touch feeling accompanying a clear buckling feeling in a relative sliding operation between a box main body and a cover member, and can maintain an appropriate buckling function for a long period of time. The replacement core box is provided with a box main body (1), wherein a cover body (2) is installed in an openable and closable manner at a core taking-out opening (1b) formed at one end part in the length direction of a long replacement core accommodating chamber (1a) enclosed by a back panel (1c) and left and right support leg plates (1d); and a cover member (5) having a front panel (5a) for covering the replacement core housing chamber at a predetermined distance from the back panel of the cartridge main body, the cover member (5) being capable of sliding along the longitudinal direction of the replacement core housing chamber between the cover member (5) and the cartridge main body. A snap protrusion (5d1) is formed on an inner surface of the cover member facing the cartridge main body side, and the snap protrusion (5d1) generates a snap action with the cartridge main body side by a sliding action.

Description

Technical Field

[0001] The present invention relates to a replacement core case for accommodating a lead used in an automatic pencil or the like. Background Art

[0002] There are many examples in which a replacement core case for accommodating a lead used in an automatic pencil or the like is composed of two components: a box body formed in a longitudinally long bottomed shape and a lid detachably attached to an opening of the box body.

[0003] For example, the replacement core case disclosed in Patent Document 1 is composed of two components: a box body formed of a resin material and a lid formed of a resin material. By sliding the lid in a direction orthogonal to the length direction of the replacement core case, an opening of the box body (an outlet for the replacement core) is opened.

[0004] In this case, it is configured such that the sliding position of the lid relative to the box opening can be set in two stages, for example, so that the user can set an opening width suitable for taking out the replacement core.

[0005] In addition, the replacement core case disclosed in Patent Document 2 is also composed of two components: a box body formed of a resin material and a lid formed of a resin material. The lid is detachably attached to an opening of a bottomed box body.

[0006] The opening formed in the box body (the outlet for the replacement core) is cut obliquely on the front surface side, so that it is configured such that the user can pinch the replacement core with fingertips, thereby realizing an easy-to-use replacement core case.

[0007] However, in the replacement core cases disclosed in Patent Document 1 and Patent Document 2, in a state where the replacement core outlet is opened, an operation of tilting the box body so that the outlet is slightly downward is required. Then, the replacement core slides out of the box body to the outlet under the action of its own gravity, and thus the required replacement core is taken out.

[0008] Therefore, it is required to perform fine operations such as shaking the box body while adjusting the tilt of the box body. When this operation is performed incorrectly, there is also a situation where more replacement cores than needed or all the replacement cores in the box body fly out of the outlet and scatter on the ground, and there may also be a situation where the operation of picking up the replacement cores scattered on the ground has to be carried out.

[0009] Therefore, in order to solve the problems of the replacement core case described above, the applicant of the present case has previously proposed a replacement core case that can easily take out the required replacement core without making the core outlet face downward, which is disclosed in Patent Document 3.

[0010] According to the replacement cartridge disclosed in Patent Document 3, with respect to the cartridge main body formed in a vertically long shape on the back side, the cover member formed in a vertically long shape on the front surface side is pulled forward, causing the cartridge main body on the back side to slide forward relatively and be sent out. As a result, the lid integrally formed at the top of the cartridge main body operates in a manner of tilting and rotating toward the back side. Thus, the core outlet is opened with the tip of the replacement core housed in the cartridge protruding from the wide-mouth core outlet.

[0011] Therefore, it is possible to provide a replacement cartridge that can pinch and take out the required replacement core with fingertips without turning the core outlet downward. Thus, problems such as a large number of replacement cores flying out of the cartridge simultaneously in the conventional replacement cartridge are eliminated.

[0012] Prior Art Documents

[0013] Patent Documents

[0014] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2010-30136

[0015] Patent Document 2: Japanese Unexamined Patent Application Publication No. 2010-173248

[0016] Patent Document 3: Japanese Unexamined Patent Application Publication No. 2022-96637 Summary of the Invention

[0017] Problems to be Solved by the Invention

[0018] In addition, according to the replacement cartridge disclosed in Patent Document 3, a snap mechanism is provided between the cartridge main body and the cover member that can slide relative to each other. Thus, in the storage state of the replacement cartridge housing the replacement core, attention should be paid to maintaining a state where the lid is reliably closed.

[0019] However, in the replacement cartridge disclosed in Patent Document 3, since the snap mechanism is formed by implementing rib-shaped protrusions on the support foot plates formed in the left and right thickness directions of the cartridge main body and the cover member, which are each formed in a flat shape, the forming width of the rib-shaped protrusions is limited.

[0020] Therefore, in the sliding operation between the cartridge main body and the cover member, it is difficult to obtain an operation feeling accompanied by a clear snap feeling, and when the cartridge main body and the cover member are formed of a resin material, since the forming width of the rib-shaped protrusions is narrow, the rib-shaped protrusions are likely to wear. Therefore, it is difficult to maintain the snap mechanism for a long time, which is a major cause of the reduction in commodity value.

[0021] The present invention is made in view of the above problems of the conventional replacement cartridge, and an object thereof is to provide a replacement cartridge that can obtain an operation feel accompanied by a clear latching sensation during a relative sliding operation between the cartridge body and the cover member, and can maintain an appropriate latching function for a long time.

[0022] Solution to the problem

[0023] The replacement cartridge of the present invention made to solve the above problems is characterized in that the replacement cartridge includes: a cartridge body that forms an inner space surrounded by a back panel and left and right support feet into a long strip shape as a replacement core storage chamber, and a cover body is installed at a core extraction port formed at one end in the length direction of the replacement core storage chamber so as to be openable and closable; and a cover member that has a front panel covering the replacement core storage chamber at a predetermined interval from the back panel of the cartridge body, the cover member can slide along the length direction of the replacement core storage chamber between the cartridge body, and a latching protrusion is formed on the inner surface of the front panel of the cover member facing the cartridge body side, and the latching protrusion generates a latching action with the cartridge body side through the sliding action, and as the cover member slides backward relative to the cartridge body toward the other end, the cover body covering the core extraction port is opened.

[0024] In this case, it is desirable that a wall member is arranged on the cartridge body so as to cover the replacement core storage chamber of the cartridge body, and a leaf spring is installed and arranged on the cartridge body side between the wall member and the cover member, and a spring-side protrusion is formed on the surface of the leaf spring facing the cover member, and the spring-side protrusion performs a latching action over the latching protrusion formed on the cover member during the sliding action.

[0025] In addition, it is desirable that the cartridge body, the cover body, the cover member, the wall member, and the leaf spring are each made of a metal material.

[0026] Moreover, in a preferred technical solution, it is configured such that the latching protrusion formed on the cover member has a predetermined length along the sliding direction with respect to the cartridge body, and in a first state where the cover member advances to the maximum extent relative to the cartridge body through the sliding action to close the cover body and a second state where the cover member retreats to the maximum extent relative to the cartridge body to open the cover body, the spring-side protrusion crosses the latching protrusion.

[0027] Effect of the invention

[0028] According to the replacement cartridge of the present invention, on the cover member side that slides between the cartridge body, a latching protrusion is formed on the inner surface of the front panel of the cover member facing the cartridge body side, and the latching protrusion generates a latching action with the cartridge body side through the sliding action.

[0029] The replacement core box is generally formed into an elongated flat cuboid for accommodating the replacement core as in the embodiments described later. Therefore, by forming the snap protrusion for generating the snap action on the inner surface of the front surface side of the cover member, a snap protrusion having a wider width can be provided.

[0030] Accordingly, it is possible to provide a replacement core box that can obtain an operation feel accompanied by a distinct snap feeling during the relative sliding operation between the box body and the cover member, and can prevent the wear of the snap protrusion for a long time and maintain an appropriate snap function. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a perspective view showing each member constituting the replacement core box in an unfolded state.

[0032] Figure 2 It is a perspective view of the replacement core box with the lid closed.

[0033] Figure 3 It is a perspective view of the replacement core box with the lid open.

[0034] Figure 4 It is a top view of the replacement core box of the present invention.

[0035] Figure 5 It is a front view of the replacement core box of the present invention.

[0036] Figure 6 It is a bottom view of the replacement core box of the present invention.

[0037] Figure 7 It is a rear view of the replacement core box of the present invention.

[0038] Figure 8 It is from Figure 4 A cross-sectional view of the replacement core box viewed along the arrow direction from the a-a line in.

[0039] Figure 9 It is Figure 8 A partial enlarged cross-sectional view in.

[0040] Figure 10 It is a top view of the replacement core box with the lid open.

[0041] Figure 11 It is a front view of the replacement core box with the lid open.

[0042] Figure 12 It is from Figure 10 A cross-sectional view of the replacement core box viewed along the arrow direction from the b-b line in.

[0043] Figure 13 It isFigure 12 Partial enlarged sectional view in

[0044] Figure 14A Shows the structure of a single component of the cartridge body, Figure 14A (A) of is a top view, Figure 14A (B) of is a front view, Figure 14A (C) of is a sectional view taken along the arrow direction from the c-c line in (A) of Figure 14A , Figure 14A (D) of is a bottom view.

[0045] Figure 14B Shows the structure of a single component of the cartridge body, Figure 14B (A) of is a perspective view observed from the inside, Figure 14B (B) of is a left view, Figure 14B (C) of is a right view.

[0046] Figure 15 Shows the structure of a single component of the cover body, Figure 15 (A) of is a top view, Figure 15 (B) of is a front view, Figure 15 (C) of is from Figure 15 a sectional view taken along the arrow direction from the d-d line in (A) of Figure 15 (D) of is a bottom view, Figure 15 (E) of is a perspective view observed from the back side, Figure 15 (F) of is a perspective view observed from the inside.

[0047] Figure 16A Shows the structure of a single component of the wall member, Figure 16A (A) of is a top view, Figure 16A (B) of is a front view, Figure 16A (C) of is from Figure 16A a sectional view taken along the arrow direction from the e-e line in (A) of Figure 16A (D) of is a bottom view.

[0048] Figure 16B Shows the structure of a single component of the wall member, Figure 16B (A) of is a perspective view observed from the inside, Figure 16B (B) of is a left view, Figure 16B (C) of is a right view.

[0049] Figure 17A Shows the structure of a single component of the leaf spring, Figure 17A (A) of is a top view, Figure 17A (B) of is a front view, Figure 17A (C) of is from Figure 17A a sectional view taken along the arrow direction from the f-f line in (A) ofFigure 17A View (D) is a bottom view.

[0050] Figure 17B Shows the structure of a single member of the leaf spring Figure 17B View (A) is a perspective view observed from the front side. Figure 17B View (B) is a left view. Figure 17B View (C) is a right view.

[0051] Figure 18A Shows the structure of a single member of the cover member Figure 18A View (A) is a top view. Figure 18A View (B) is a front view. Figure 18A View (C) is from Figure 18A A cross-sectional view of view (A) along the g-g line in the direction of the arrow. Figure 18A View (D) is a bottom view.

[0052] Figure 18B Shows the structure of a single member of the cover member Figure 18B View (A) is a perspective view observed from the inside. Figure 18B View (B) is a left view. Figure 18B View (C) is a right view. Detailed implementation

[0053] The replacement core box of the present invention will be described based on the drawings.

[0054] In addition, in the following figures, the same parts are denoted by the same reference numerals. However, in some of the figures, representative parts are marked with reference numerals according to the situation of the drawing paper. For the detailed parts, the reference numerals marked in the figures showing the structure of a single member are cited for description.

[0055] Figure 1 The components constituting the replacement core box are shown in an unfolded state. The replacement core box is composed of a box body 1, a lid 2, a wall member 3, a leaf spring 4, and a cover member 5. These components are preferably formed by press-forming a metal material such as stainless steel.

[0056] An inner space formed in a long strip shape is formed in the box body 1. The long strip-shaped inner space constitutes a replacement core storage chamber 1a. One end portion in the length direction of the replacement core storage chamber 1a constitutes a core extraction port 1b. The lid 2 capable of opening and closing the core extraction port 1b is mounted on the box body 1 so as to be rotatable relative to the box body 1.

[0057] The wall member 3 is disposed in the box body 1 so as to cover the replacement core storage chamber 1a of the box body 1, and the leaf spring 4 is mounted and disposed on the side of the box body 1 above the wall member 3.

[0058] Then, with the wall member 3 and the leaf spring 4 housed on the side of the box body 1, the cover member 5 is slidably mounted on the box body 1 along the length direction of the box body 1 at its upper part.

[0059] Figure 2 and Figure 3 The external structure of the replacement core box formed by assembling the above-described members is shown in a three-dimensional view. That is, Figure 2 A first state is shown in which the cover member 5 is advanced to the maximum extent relative to the box body 1 by the sliding movement of the cover member 5 relative to the box body 1 to close the cover body 2. In addition, Figure 3 A second state is shown in which the cover member 5 is retracted to the maximum extent relative to the box body 1 by the sliding movement to open the cover body 2.

[0060] And, Figures 4 to 9 A part of the basic six-sided view and a cross-sectional view are used to show the replacement core box in the first state. Figures 10 to 13 A part of the basic six-sided view and a cross-sectional view are used to show the replacement core box in the second state.

[0061] In addition, hereinafter, for the sake of convenience of explanation, the side of the cover body 2 mounted on the box body 2, that is, the core extraction port 1b side, is referred to as one end or the front end of the replacement core box, and the opposite side is referred to as the other end or the rear end of the replacement core box.

[0062] In FIGS. 14 to 18, the structures of the individual members of the box body 1, the cover body 2, the wall member 3, the leaf spring 4, and the cover member 5 are shown. First, the structures of the individual members will be described based on the respective figures showing the structures of these individual members.

[0063] Figure 14A and Figure 14B The box body 1 shown has a cross-section orthogonal to the length direction formed in a shape of the Japanese kana "コ" by the rectangular back panel 1c and the left and right support feet 1d. The inner side surrounded by the left and right support feet 1d and the rear end closing plate 1e that closes the rear end constitutes the replacement core housing chamber 1a having the back panel 1c as the bottom surface. In addition, the front end side of the box body 1 is open to form the core extraction port 1b.

[0064] In the left and right support feet 1d, linear grooves 1f that are respectively recessed from the outside toward the inside along the length direction are formed in a parallel state by pressing. In addition, the linear grooves 1f function to support the cover member 5 described later so as to be slidable along the length direction.

[0065] In addition, on the front end side of the left and right support feet 1d, support shaft holes 1g are respectively formed opposite to each other, and the pair of support shaft holes 1g are used to rotatably mount the cover body 2 described later on the core extraction port 1b.

[0066] Figure 15 The lid body 2 shown has support feet plates 2b formed on the left and right of the back panel 2a in a bent manner and a front end closing plate 2c formed on the front end portion of the back panel 2a in a manner of bending in the same direction as the support feet plates 2b. The portion surrounded by the pair of support feet plates 2b and the front end closing plate 2c constitutes the inside of the lid body 2.

[0067] In addition, a pair of elongated support legs 2d that extend continuously toward the rear end side from the left and right support feet plates 2b are formed to have lengths of substantially the same size. At the ends of the support legs 2d, short protruding shafts 2e are respectively formed by pressing, and the protruding shafts 2e are formed to protrude toward the inside of each other.

[0068] The protruding shafts 2e that protrude toward the inside of each other formed on the left and right support legs 2d are respectively inserted into the pair of support shaft holes 1g formed on the front end portion side of the box body 1 from both outer sides, and the lid body 2 is rotatably mounted on the front end portion of the box body 1.

[0069] Thus, as Figure 2 shown, when the cover member 5 advances to the maximum extent relative to the box body 1 to become the first state of closing the lid body 2, the back panel 2a of the lid body 2 becomes flush with the back panel 1c of the box body 1. In addition, as Figure 3 shown, when the cover member 5 retracts to the maximum extent relative to the box body 1 to become the second state, the lid body 2 hangs down by its own weight and becomes a state of opening the core extraction port 1b.

[0070] Figure 16A And Figure 16B shows the wall member 3. The wall member 3 has a pair of side plates 3b formed on the left and right sides in the length direction of the elongated top plate 3a in a manner of bending in the same direction, so that the cross section orthogonal to the length direction is formed in a shape like the Japanese kana "コ".

[0071] And, the side plates 3b extend at the front end portion of the wall member 3, and a pair of protection plates 3c are formed in a manner of opening to two outer sides that are inclined to each other. In addition, the side plates 3b extend at the rear end portion of the wall member 3, and a pair of locking pieces 3d are formed in a manner of bending outward from each other orthogonally to the side plates 3b.

[0072] And, at the front end portion of the top plate 3a, a standing piece 3e is formed in a manner of bending in a direction opposite to the bending direction of the pair of side plates 3b.

[0073] The wall member 3 configured as described above is installed to cover the replacement core accommodation chamber 1a of the box body 1 with the top plate 3a on top. Thus, the replacement core accommodation chamber 1a is configured to be surrounded by the top plate 3a of the wall member 3 and the left and right side plates 3b.

[0074] Furthermore, when the wall member 3 is mounted on the box body 1, a pair of locking pieces 3d formed at the rear end of the wall member 3 are inserted into the gaps formed between the rear end closing plate 1e and the left and right leg plates 1d of the box body 1. Thus, the wall member 3 is prevented from moving in the longitudinal direction within the box body 1.

[0075] By attaching the wall member 3 to the box body 1 as described above, Figure 3 As shown, the protective plate 3c of the wall member 3 is located on the left and right of the core removal port 1b of the box body 1, thereby restricting the top end of the replacement core accommodated in the replacement core accommodating chamber 1a to face the longitudinal direction of the replacement core box. Figure 2 When the lid 2 is closed as shown, the tip of the refill accommodated in the refill accommodation chamber 1 a is prevented from being caught between the lid 2 and the tip of the case body 1 and from being damaged.

[0076] Furthermore, the raised piece 3 e provided on the wall member 3 closes the gap between the top plate 3 a of the wall member 3 and the front panel 5 a of the cover member 5 described later, thereby preventing the replacement core from being mistakenly inserted.

[0077] Figure 17A and Figure 17B The structure of a single member of the leaf spring 4 is shown. It consists of a rectangular plate body. Specifically, the rectangular plate body is plastically deformed so that its longitudinal center portion bulges upward, forming a curved plate 4a. A slender protrusion 4b (hereinafter referred to as the spring-side protrusion) is formed in the center of the curved plate 4a, protruding in a direction perpendicular to the longitudinal direction. The upper surface of the slender spring-side protrusion 4b is substantially flat, and an inclined surface 4b1 is formed between the spring-side protrusion 4b and the curved plate 4a, surrounding the spring-side protrusion 4b.

[0078] Furthermore, at the rear end of the leaf spring 4, the end of the bent plate 4a is bent at a substantially right angle toward the direction opposite to the protruding direction of the spring-side protrusion 4b to form a rear end bent piece 4c. Furthermore, at the top end of the leaf spring 4, the end of the bent plate 4a is bent at a substantially right angle toward the same direction as the protruding direction of the spring-side protrusion 4b to form a front end rising piece 4d.

[0079] The leaf spring 4 is placed on the wall member 3 covering the replacement core storage chamber 1a of the box body 1 with the spring-side protrusion 4b facing upward. In this case, the rear end bent piece 4c of the leaf spring 4 is inserted into the gap formed between the rear end closing plate 1e of the box body 1 and the top plate 3a of the wall member 3, thereby preventing the leaf spring 4 from moving in the longitudinal direction.

[0080] In addition, the front end standing piece 4d of the leaf spring 4 disposed on the side of the box body 1 is disposed in a parallel state directly behind the standing piece 3e formed on the wall member 3 (see Figure 8 , Figure 12 ).

[0081] Figure 18A And Figure 18B show the structure of a single member of the cover member 5. The cover member 5 is formed with a pair of outer support feet 5b bent in the same direction on the left and right sides in the longitudinal direction of the front panel 5a formed in a rectangular shape, so that the cross section of the cover member 5 orthogonal to the longitudinal direction is formed in the shape of the Japanese kana "コ". Further, the rear end portion of the front panel 5a is also configured as a rear end outer closing plate 5c by bending in the same direction as the outer support feet 5b.

[0082] At the center of the upper surface of the front panel 5a, a circular concave pit 5d is formed by pressing. For this concave pit 5d, when the cover member 5 is slid with respect to the box body 1, by, for example, bringing the pulp of the thumb into contact with the concave pit 5d, the sliding between the thumb and the cover member 5 is prevented, and the sliding operation can be smoothly performed.

[0083] The circular concave pit 5d is formed as a circular protrusion on the back side of the front panel 5a, which contacts the spring side protrusion 4b on the side of the leaf spring 4 during the sliding operation and functions as a snap protrusion 5d1 for performing a snap action between the two. In addition, the snap action performed at this time will be described later.

[0084] In addition, at the central portions in the longitudinal direction of the pair of left and right outer support feet 5b, three small protrusion-shaped sliders 5e protruding from the two outer sides of each outer support foot 5b are linearly arranged. The small protrusion-shaped sliders 5e are respectively inserted into the linear grooves 1f formed in the left and right support feet 1d of the box body 1 from the outside, so that the cover member 5 can be slidably supported on the box body 1 in the longitudinal direction.

[0085] In addition, the front end portions of the pair of left and right outer support feet 5b are formed such that the downward bending dimension of the outer support feet 5b with respect to the front panel 5a is smaller, and a short guide arm 5f extending forward from the outer support feet 5b is formed in the portion of the outer support feet 5b with a smaller downward bending dimension. Thus, a guide groove 5g is formed between the guide arm 5f and the outer support feet 5b with a smaller downward bending dimension.

[0086] The guide arm 5f and the guide groove 5g realize the opening and closing operation of the cover body 2 during the sliding operation of the cover member 5 with respect to the box body 1. The opening and closing operation of the cover body 2 will be described later.

[0087] The replacement core box including the components indicated by the reference numerals 1 to 5 described above is assembled by fitting the small protrusion-shaped sliders 5e provided on the outer leg plates 5b of the cover member 5 from the outside into the linear grooves 1f provided on the left and right leg plates 1d of the box body 1 as described above.

[0088] According to this replacement core box, the spring-side protrusion 4b formed at the center of the bent plate 4a of the leaf spring 4 is in contact with the back surface of the front panel 5a of the cover member 5 with an appropriate spring pressure.

[0089] On the other hand, the locking protrusion 5 d 1 formed on the cover member 5 is formed in a circular shape and has a predetermined length corresponding to the diameter of the circular shape along the sliding direction (the longitudinal direction of the cover member 5 ).

[0090] Furthermore, through this sliding operation, the spring-side protrusion 4b of the leaf spring 4 relatively climbs up the snap protrusion 5d1 formed on the cover member 5. Then, the spring-side protrusion 4b passes over the snap protrusion 5d1 and, at the end of the snap protrusion 5d1, falls into the front panel 5a of the cover member 5. At this point, a clear snapping action can be felt.

[0091] Figure 8 and Figure 9 The first state in which the cover member 5 is moved forward to the maximum extent relative to the box body 1 by the sliding operation is shown (see FIG. Figure 2 ) in the case of the positional relationship between the locking protrusion 5d1 on the cover member 5 side and the spring-side protrusion 4b on the leaf spring 4 side.

[0092] Furthermore, in this first state, the small protrusion-shaped slider 5e formed on the left and right outer leg plates 5b of the cover member 5 and located at the front end side is located on the front end side of the linear groove 1f formed on the left and right leg plates 1d of the box body 1. Figure 8 As shown, the rear outer closing plate 5c of the cover member 5 is in contact with the rear closing plate 1e of the box body 1. Therefore, further advancement of the cover member 5 relative to the box body 1 is prevented.

[0093] In the first state, if Figure 9 As shown, the spring-side protrusion 4 b on the leaf spring 4 side is located just behind the locking protrusion 5 d 1 on the cover member 5 side in a state of being dropped into the back surface of the front panel 5 a of the cover member 5 .

[0094] Figure 12 and Figure 13 The second state is shown in which the cover member 5 is moved backward to the maximum extent relative to the box body 1 by the sliding operation (see FIG. Figure 3The positional relationship between the buckle protrusion 5d1 on the cover member 5 side and the spring-side protrusion 4b on the leaf spring 4 side in the case of ( ).

[0095] In addition, in this second state, the small protrusion-shaped slider 5e formed at the rearmost end side on the left and right outer support feet 5b of the cover member 5 is in a state of being located at the rear end side of the linear groove 1f formed on the left and right support feet 1d of the cartridge main body 1. Therefore, a state is achieved in which further backward movement of the cover member 5 relative to the cartridge main body 1 is blocked.

[0096] In this second state, as Figure 1 shown, the spring-side protrusion 4b on the leaf spring 4 side is located directly in front of the buckle protrusion 5d1 on the cover member 5 side in a state of falling into the back surface of the front panel 5a of the cover member 5.

[0097] Therefore, according to this replacement core cartridge, when changing from the first state to the second state and when changing from the second state to the first state, a sliding operation accompanied by a distinct buckling touch can be achieved respectively.

[0098] Moreover, the buckle protrusion 5d1 can be a buckle protrusion 5d1 formed on the inner surface of the front panel 5a of the cover member 5 and having a relatively wide width orthogonal to the length direction. Thereby, a replacement core cartridge can be provided that can obtain an operation touch accompanied by a distinct buckling feeling during the relative sliding operation between the cartridge main body 1 and the cover member 5, and can prevent wear of the buckle protrusion 5d1 for a long time and maintain an appropriate buckling function.

[0099] On the other hand, the lid 2 located at the front end of the replacement core cartridge opens and closes at the core extraction port 1b along with the above-described sliding operation.

[0100] That is, in ​ the first state shown, the support foot 2d of the lid 2 is housed in the guide groove 5g provided in the cover member 5 (refer to ​ ), and the support foot 2d is constrained to maintain a posture in the same direction as the length direction of the cover member 5. Thus, the lid 2 maintains the state of closing the core extraction port 1b.

[0101] In addition, in ​ the second state shown, the cover member 5 retreats from the cartridge main body 1, and the constraint of the guide groove 5g provided in the cover member 5 on the support foot 2d of the lid 2 is released. Thereby, the lid 2 can rotate through the protruding shaft 2e supported by the support shaft hole 1g of the cartridge main body 1, the lid 2 hangs downward by its own weight, and the core extraction port 1b is opened.

[0102] And, when returning from ​ the second state shown ​In the first state shown, as the cover member 5 moves forward relative to the box body 1, the protruding shaft 2e that supports the cover body 2 so that it can rotate enters the guide groove 5g implemented on the cover member 5, and the support leg 2d of the cover body 2 enters the guide groove 5g. As a result, the support leg 2d of the cover body 2 is accommodated in the guide groove 5g provided on the cover member 5, and the support leg 2d rotates toward the cover member 5. The support leg 2d is constrained by the guide groove 5g to maintain a posture in the same direction as the longitudinal direction of the cover member 5. Therefore, the cover body 2 becomes as shown in FIG. ​ The core removal port 1b is shown in a closed state.

[0103] As described above, according to the replacement core storage box of this embodiment, the cover member 5 performs an appropriate snap-fitting operation by sliding relative to the box body 1, and the lid body 2 opens and closes the core removal port 1b in conjunction with the cover body 2, thereby providing a replacement core box that is easy for the user to use.

[0104] In the embodiment described above, the wall member 3 is provided in the replacement core box, but the wall member 3 is not necessarily required.

[0105] In the embodiment, the wall member 3 serves to support the front end of the leaf spring 4 at the top plate 3a, but by locking the front end side of the leaf spring 4 to a part of the box body 1, the core removal outlet 1b will not be blocked by the leaf spring 4, so that the wall member 3 can be omitted.

[0106] Description of Reference Numerals

[0107] 1. Box body; 1a. Replacement core storage chamber; 1b. Core removal outlet; 1c. Back panel; 1d. Support plate; 1e. Rear end closing plate; 1f. Linear groove; 1g. Support shaft hole; 2. Cover body; 2a. Back panel; 2b. Support plate; 2c. Front end closing plate; 2d. Support foot; 2e. Protruding shaft; 3. Wall member; 3a. Top plate; 3b. Side plate; 3c. Protective plate; 3d. Locking piece; 3e. Standing piece; 4. Leaf spring; 4a. Bending plate; 4b. Spring side protrusion; 4b1. Inclined surface; 4c. Rear end bending piece; 4d. Front end standing piece; 5. Cover member; 5a. Front panel; 5b. Outer support plate; 5c. Rear end outer closing plate; 5d. Concave; 5d1. Snap protrusion; 5e. Sliding part; 5f. Guide arm; 5g. Guide groove.

Claims

1. A replacement core box, characterized in that: The replacement core box includes: A box body, which forms an inner space in a strip shape surrounded by a back panel and left and right support feet as a replacement core storage chamber, and a core extraction port formed at one end of the replacement core storage chamber in the length direction is provided with a cover in an openable and closable manner; And A cover member, which has a front panel covering the replacement core storage chamber at a predetermined interval from the back panel of the box body, and the cover member can slide along the length direction of the replacement core storage chamber between the cover member and the box body. A snap projection is formed on the inner surface of the front panel of the cover member facing the box body side, and the snap projection generates a snap action between the cover member and the box body side through the sliding action. As the cover member slides backward relative to the box body toward the other end, the cover covering the core extraction port is opened.

2. The replacement core box according to claim 1, characterized in that: A wall member is arranged on the box body so as to cover the replacement core storage chamber of the box body, and a leaf spring is installed and arranged on the box body side between the wall member and the cover member. A spring-side projection is formed on the surface of the leaf spring facing the cover member, and the spring-side projection performs a snap action over the snap projection formed on the cover member during the sliding action.

3. The replacement core box according to claim 2, characterized in that: The box body, the cover, the cover member, the wall member and the leaf spring are respectively made of metal materials.

4. The replacement core box according to claim 2, characterized in that: The snap projection formed on the cover member has a predetermined length along the sliding direction relative to the box body. In a first state where the cover member advances to the maximum extent relative to the box body through the sliding action to close the cover, and a second state where the cover member retreats to the maximum extent relative to the box body to open the cover, the spring-side projection crosses the snap projection.

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