JP6681224B2 - Small article case and eraser - Google Patents

Description

  The present invention relates to a small article case and eraser, and more particularly, to a small article storage case structure for holding and holding a main body of a small article in a handheld size and projecting the article body by a predetermined amount during use.

  For example, the eraser that erases typographical errors and typographical errors with a writing instrument such as a pencil is a rubber, plastic or thermoplastic elastomer eraser body that is a paper or plastic cover member or storage case (hereinafter referred to as a storage case. (Referred to as)).

  The storage case prevents the eraser body from becoming dirty and prevents the eraser body from being broken or chipped during use.Additionally, in the plastic eraser containing vinyl chloride resin as the main component, The main purpose is to prevent the plasticizer, which is a substance, from migrating to the surface of the eraser body and melting and contaminating other plastic products. It is projected from the case to the outside.

  When the tip of the eraser body is worn out by use, pull out the eraser body from the storage case with your fingers, or cut the tip side of the storage case to expose the tip of the eraser body. Was there.

  However, in the method of pulling out the eraser body from the storage case with fingers as described above, since the eraser body is directly grasped by the fingers, sweat or oil on the surface of the finger adheres to the eraser body, and the eraser should be erased. There is a problem that the character performance is deteriorated or it is soiled, and the method of cutting out the storage case requires a cutting tool such as scissors, and when it is torn with fingers, it can not be cut cleanly, it only damages the external shape. In addition, as the eraser body becomes smaller with time, it becomes difficult to hold it with fingers, which hinders the eraser work and is easy to lose.

  In this regard, various small article cases have been developed for accommodating small articles such as lipsticks that can be drawn out (see, for example, Patent Documents 1 to 3).

  In each of these small article cases, although the specific structure is different, the stored items such as lipstick stored in the storage container body are delivered to the outside from the tip opening of the storage container body by the delivery rotation operation of the delivery unit. At the same time, it is stored again in the storage container body by the storage rotation operation in the opposite direction.

JP, 6-191568, A JP-A-7-255525 JP, 8-214937, A

  However, the structure of the feeding part in the small article case is relatively complicated and has a large number of parts, and the manufacturing cost and the product cost of the case itself are high, and it is adopted as a storage case for small articles such as erasers that are inexpensive. Is difficult or impossible, and further, it is desirable that the case itself is inevitably in a cylindrical shape because of the structural feature that it is rotated, and thus it is desirable that the small article to be housed is also in a cylindrical shape. In the case of a small article having another shape such as a rectangular parallelepiped shape, there is also a problem that the shape and size of the case itself becomes large and bulky.

  The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a small-sized article case having a simple structure and a low cost, which is provided with a function for feeding a hand-held article body. .

  Another object of the present invention is to provide an eraser equipped with such a small article case as a storage case.

In order to achieve this object, the small article case of the present invention stores and holds a handheld article body so that it can be drawn forward, and a case body that slidably holds the outer peripheral surface of the article body. , Provided in a part of the case body, is provided with a delivery means for delivering the article body by a forward pushing action by a pressing operation with fingers, the delivery means corresponding to the outer peripheral surface of the article body. The push-out lever is provided integrally with the case body made of the same material as the case body, and its base end is integrally connected to the case body and its tip is Is a push-out engaging portion that can be locked to the outer peripheral surface of the article main body, and at least the base end portion of the push-out lever and the case main body are elastically deformed to push the pusher member. Extrusion engagement portion and the lever is engaged with the outer peripheral surface of the article body, characterized in that it is structured to push the article body forward.

The following configuration is adopted as a preferred embodiment.
( 1 ) In addition to the elastic deformation of the integrally connecting portion between the base end of the push-out lever and the case body, the push-out engaging part of the push-out lever causes the push-out engaging part of the push-out lever to move to the outer peripheral surface of the article body. To push the article body forward.

( 2 ) The push-out lever is in the form of a plate-like member that is bent and formed in a chevron V-shape, and its front and rear end portions form the base end portion and push-out engaging portions, respectively, and The chevron top portion in the middle is a pressing portion that is pressed with fingers.

( 3 ) The base end portion, the push-out engaging portion, and the pressing portion of the push-out lever have a planar shape that extends linearly continuously in the axial direction of the article body.

( 4 ) The push-out engaging portion has an undersurface that is an engaging surface that comes into surface contact with the outer peripheral surface of the article body, and the engaging surface is for promoting the engaging action with respect to the outer peripheral surface of the article body. The uneven portion is provided.

( 5 ) The engaging action of the engaging surface of the push-out engaging portion with the outer peripheral surface of the article body utilizes the elasticity of the article body.

( 6 ) A front end edge of the push-out engaging portion has a contour shape formed by a circular curve curved forward.

( 7 ) The push-out lever is formed in the vicinity of the front open end of the case body, and the push-out working space of the push-out lever is open to the front open end of the case body.

( 8 ) The push-out lever is formed near the front open end of the case body, and the push-out action space of the push-out lever is defined by the front open end edge of the case body.

( 9 ) The case body has a front-rear open-ended tubular shape that slidably surrounds and holds the outer peripheral surface of the article body.

( 10 ) The case main body is in the shape of a front open container that slidably surrounds and holds the outer peripheral surface of the article main body, and has a closing portion that faces the rear end surface of the article main body.

( 11 ) The shape and size of the inner peripheral surface of the case body holds the article body with an appropriate holding force, and the eraser body is pushed forward from the case body by the pushing-out action of the feeding means. It is set to allow it to be paid out.

( 12 ) The case main body is provided with retreat suppressing means for suppressing the retreat of the article main body in the case main body.

( 13 ) The retreat suppressing means is in the form of an anti-slip structure formed in the inner peripheral surface of the case body so as to extend in the front-rear direction, and the anti-slip structure abuts and engages with the outer peripheral surface of the article body. A plurality of engaging projections are continuously arranged in the front-rear direction of the case body.

( 14 ) The retreat suppressing means includes a moving member that supports and moves the rear end surface of the article body, and a retreat preventing structure that is formed on the inner peripheral surface of the case body and prevents the moving member from retreating. The moving member has a contoured outer peripheral surface that is slidably guided by the inner peripheral surface of the case body, and has a locking projection that can be locked to the retreat preventing structure on the outer peripheral surface. The locking projection of the moving member includes a plurality of locking portions that can be locked to the rear of the case body.

( 15 ) The case body and the feeding means are injection-molded articles made of plastic.

( 16 ) The base end portion of the push-out lever has a thicker cross-sectional shape than other portions.

( 17 ) The case body and the feeding means are sheet metal molded products made of thin sheet metal.

  The eraser of the present invention is characterized in that the eraser body as a handheld article body is housed and held in the small article case so as to be drawn forward.

The following configuration is adopted as a preferred embodiment.
(1) The eraser main body has a rectangular parallelepiped shape, and the push-out lever of the feeding means is provided at least corresponding to the outer peripheral side surface 1 of the eraser main body.

(2) A pair of the push-out levers are provided so as to correspond to the two outer peripheral side surfaces of the eraser body, which face each other.

(3) The eraser body has a cylindrical shape, and the push-out lever of the feeding means is provided so as to correspond to at least a part of the outer circumference of the cylinder of the eraser body.

(4) A pair of the push-out levers are provided in correspondence with the opposing positions of the cylindrical outer peripheral surface of the eraser body.

According to the small article case of the present invention, a handheld article body is stored and held so as to be able to be drawn forward, and a case body that slidably holds the outer peripheral surface of the article body, and It is provided with a feeding means that is provided in a part and that pushes out the article body by a pushing operation with a finger forward, and the feeding means is an extrusion provided corresponding to the outer peripheral surface of the article body. A lever is provided, and the push-out lever is integral with a case body formed of the same material as the case body, the base end portion of which is integrally connected to the case body, and the tip portion of which is the article body. Is a push-out engaging portion that can be locked to the outer peripheral surface of the push-out lever, and the push-out lever is pushed out by elastic deformation of at least an integrally connected portion between the base end portion of the push-out lever and the case body. Engaging portion is engaged with the outer peripheral surface of the article body, since there is a structure to push the article body forward, is exhibited specific effects as listed below, feeding function of the article body handheld It is possible to provide a small article case that has a simple structure and is inexpensive.

(1) The article body is provided with a feeding means that is provided in a part of the case body that slidably holds the outer peripheral surface of the article body, and that feeds out the article body by a pushing operation with a finger. The body of the article can be exposed from the case body without directly touching the fingers, and sweat or oil on the surface of the fingers can adhere to the body of the article, impairing the original characteristics of the body or soiling it. Absent.

(2) Since the feeding means is provided with the pushing lever provided so as to correspond to the outer peripheral surface of the article body, the feeding operation can be performed by a simple operation of pressing the pushing lever with fingers. The structure is small and simple, and the manufacturing cost and the product cost can be kept low.

(3) Since the feeding means has a simple structure in which the article body is pushed out by the pushing operation with the fingers, the external shape of the article body to be stored is not restricted by the shape of the case body. It can have any corresponding shape.

  In other words, the small article case of the present invention is not restricted by the outer shape of the article body to which the shape of the case body is applied, and is applied to small articles having any outer shape such as a columnar shape and a rectangular parallelepiped shape. Possible and versatile.

  In addition, since the shape of the case main body can be made to closely follow the outer shape of the article main body to be stored, the outer shape of the case main body is almost the same as the shape of the article main body. It is possible to minimize the increase in the shape and size of the small article and prevent the small article from becoming bulky.

(4) Since the eraser of the present invention is such that the eraser body as a handheld article body is housed and held in the small article case so that it can be drawn forward, the effects of the above (1) to (3) are effective. Can be demonstrated.

  That is, the eraser made of rubber, plastic, or thermoplastic elastomer has a low product cost and is a mass-produced product, and as described above, the small article case of the present invention has a low manufacturing cost and a low product cost. Ideal as a storage case for erasing.

  Further, since the feeding means for the small article case has a structure for pushing out the eraser (eraser body) stored by the pressing operation with fingers, it is possible to push out the eraser of the conventional eraser case (storage case). As described above, it is not necessary to directly grasp or erase the eraser body with fingers, and sweat or oil on the surface of the fingers adheres to the eraser body, degrading the original eraser performance or becoming dirty. There is no.

It is a perspective view which shows the eraser which is Embodiment 1 of this invention. FIG. 2 (a) is a plan view showing a partially cutaway view, FIG. 2 (b) is a side view showing the same cutaway view, and FIG. 2 (c) is a front view. Is. It is a perspective view which shows the delivery operation state of the delivery part in erasing the same character. It is a side sectional view for similarly explaining the feeding operation mechanism of the eraser main body by the feeding portion. It is a perspective view which shows the eraser which is Embodiment 2 of this invention. FIG. 6A shows a partially erased plan view, FIG. 6B shows a partially cutaway side view, and FIG. 6C shows a front view. It is a figure. 7 shows an eraser case of an eraser according to a third embodiment of the present invention, FIG. 7 (a) is a plan view showing a part of the eraser, and FIG. 7 (b) is a side view showing a part of the eraser. FIG. 7C is a front view. It is a perspective view which shows the eraser which is Embodiment 4 of this invention. It is a perspective view which shows the eraser which is Embodiment 5 of this invention. FIG. 10A shows an eraser according to a sixth embodiment of the present invention, FIG. 10A is a plan cross-sectional view showing the eraser case in a cross section, and FIG. 10B is a retreat suppressing portion within a dashed-dotted circle in FIG. 10A. 10C is an enlarged plan sectional view showing the structure of FIG. 10C, and FIG. 10C is an enlarged plan sectional view showing a modified example of the structure of the retreat suppressing portion within the dashed-dotted circle in FIG. 10A. 10] Similarly, FIG. 10A is an enlarged plan sectional view showing a modified example of the structure of the retreat suppressing portion within the dashed-dotted line circle in FIG. FIG. 11A shows an eraser according to a seventh embodiment of the present invention, FIG. 11A is a plan sectional view showing a part of the eraser case and the eraser body, and FIG. 11B is a moving member of the retreat suppressing portion. 11B is an enlarged plan sectional view showing the structure of the retreat suppressing portion within the dashed-dotted line circle in FIG. 11A. It is a perspective view which shows the eraser which is Embodiment 8 of this invention. FIG. 13 (a) is a plan sectional view showing the eraser case and a part of the eraser main body, and FIG. 13 (b) is a perspective view showing the moving member of the retreat suppressing portion. FIG. 13C is an enlarged plan sectional view showing the structure of the retreat suppressing portion within the dashed-dotted line circle in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same reference numerals indicate the same constituent members or elements throughout the drawings.

Embodiment 1
The eraser according to the present invention is shown in FIG. 1 and FIG. 2, and this eraser 1 is specifically a typographical error such as a character of a sentence or a line of a figure written with a writing instrument such as a pencil or a mechanical pencil. It is a plastic eraser for erasing the so-called plastic eraser or plastic eraser.

  In this eraser 1, the eraser main body 2 is stored and held in an eraser case (small article case) 3 as a storage case, and the eraser case 3 forwards the eraser main body 2 to the front. (Means) 4 is provided.

  The eraser main body 2 has a rectangular parallelepiped shape made of plastic, and is an elastic article formed by adding a plasticizer and a pigment to a plastic material such as vinyl chloride, as is well known in the art.

  The eraser case 3 is for accommodating and holding the eraser main body 2 which is a handheld article main body so as to be able to be forwarded. Specifically, the case main body 5 and the above-mentioned feeding portion 4 are integrally formed. It is a plastic injection molded product.

  The case body 5 holds the outer peripheral surface of the eraser body 2 slidably, and more specifically, a front and rear open type tubular body that slidably holds the outer peripheral surface of the eraser body 2. It is said that.

  In the illustrated embodiment, the eraser main body 2 has a rectangular parallelepiped shape, and its outer peripheral surfaces, that is, the front surface 2a, the rear surface 2b, and the four side surfaces 2c, 2d, 2e, and 2f of the four side surfaces 2c, 2d, 2e and 2f are configured to be slidably surrounded and held by the case body 5.

  The shape dimension of the case body 5, especially the shape dimension of the inner peripheral surface, is set in relation to the shape dimension of the outer peripheral surface (4 side surfaces 2c, 2d, 2e, 2f) of the eraser body 2, and specifically, The eraser main body 2 is held with an appropriate holding force, and is set so as to allow the eraser main body 2 to be forwardly extended from the case main body 5 by the forward pushing action of the feeding portion 4 described later.

  Here, "moderate holding force" means that the eraser main body 2 is stably held without being moved to a fixed position in the case main body 5 in the normal state, while the push-out operation of the feeding unit 4 is performed. It means a holding force to the extent that the eraser body 2 is moved from the fixed position by the pressure, and in any case, it is determined in consideration of handleability at an actual use site.

  With respect to the actual shape and size of the case body 5, an experiment in which the eraser body 2 to be stored and held is actually mounted and stored in the case body 5 and fed out is repeated, and the optimum value satisfying the above conditions is determined through this experiment. It

  The feeding portion (feeding means) 4 feeds out the eraser main body 2 by a pushing operation with the fingers, and is provided integrally with a part of the case main body 5.

  Specifically, the feeding portion 4 is provided with a pushing lever 6 provided corresponding to the outer peripheral surface (4 side surfaces 2c, 2d, 2e, 2f) of the eraser main body 2.

  Corresponding to the eraser body 2 having a rectangular parallelepiped shape, the push-out lever 6 is provided at least corresponding to the outer peripheral side 1 side surface of the eraser body 2, and in the illustrated embodiment, A pair of push-out levers 6 and 6 are provided so as to correspond to the two opposite side surfaces of the eraser body 2, that is, the upper and lower side surfaces 2c and 2d, respectively.

  As described above, the push-out lever 6 is integral with the case body 5 made of the same plastic material as the case body 5.

  A base end portion 6a of the push-out lever 6 is integrally connected to the case body 5, and a tip end portion 6b of the push-out lever 6 can be locked to the outer peripheral surface of the eraser body 2, that is, the upper side surface 2c or the lower side surface 2d. It is said that.

  The specific configuration of the push-out lever 6 is in the form of a plate-like body having a side shape bent and formed in a chevron V-shape, and the front and rear ends thereof respectively have the base end portion 6a and the push-out engaging portion 6b. While being formed, the chevron-shaped top portion 6c intermediate between the front and rear end portions 6a and 6b serves as a pressing portion that is pressed by a finger.

  The base end portion 6a, the push-out engaging portion 6b, and the pressing portion 6c of the push-out lever 6 have a planar shape that linearly continuously extends in the axial direction of the eraser main body 2.

  The lower surface 7 of the push-out engaging portion 6b of the push-out lever 6 is an engaging surface that comes into surface contact with the upper side surface 2c or the lower side surface 2d of the eraser body 2. The engaging surface 7 is provided with an uneven portion 7a for promoting an engaging action on the outer peripheral surface (the upper side surface 2c or the lower side surface 2d) of the eraser main body 2.

  Further, the front end edge of the push-out engaging portion 6b has a linear contour shape that is orthogonal to the front-back direction of the eraser body 2 in the illustrated embodiment, but is shown by a chain double-dashed line in FIG. As described above, the contour shape may be a circular curve that curves forward.

  The contour-shaped structure composed of such a circular curve is advantageous in that the push-out engaging portion 6b is easily slipped into the elastic article such as the eraser main body 2 of the illustrated embodiment without slipping at the initial stage of engagement. There is.

  In the push-out lever 6, the push-out engaging portion 6b of the push-out lever 6 is engaged with the upper side surface 2c of the eraser body 2 by elastic deformation of at least the integral connecting portion 8 of the base end portion 6a and the case body 5. The eraser body 2 is pushed forward.

  For this purpose, the base end portion 6a of the extrusion lever 6, more specifically, the portion including the base end portion 6a and the integrated connection portion 8 has a thicker cross-sectional shape than other portions. There is. With such a structure, sufficient elasticity and strength of this portion made of plastic are secured.

  The push-out lever 6 of the illustrated embodiment has the push-out engaging portion of the push-out lever 6 due to the elastic deformation of the push-out lever 6 itself in addition to the elastic deformation of the integrated connection portion 8 between the base end portion 6a and the case body 5. 6b engages the upper side surface 2c or the lower side surface 2d of the eraser main body 2 and pushes the eraser main body 2 forward.

  Further, since the eraser main body 2 is an elastic article, the engaging action of the engaging surface 7 of the push-out engaging portion 6b of the push-out lever 6 with respect to the outer peripheral surface (upper side surface 2c or lower side surface 2d) of the eraser main body 2 does not occur. , The structure that utilizes the elasticity of the eraser body 2.

  In this regard, as described above, the front end edge of the push-out engaging portion 6b of the push-out lever 6 may have a contour shape formed by a circular curve curved forward (see the chain double-dashed line in FIG. 2).

  The push-out lever 6 is formed in the vicinity of the front open end of the case main body 5, and the push-out action space, that is, the operation space of the push-out lever 6 faces the front open end of the case main body 5 and is opened.

  In other words, the tip end portion of the push-out lever 6, that is, the push-out engaging portion 6b is provided so as to face the front of the case body 5, and is configured to project to the front of the case body 5 at the time of a feeding operation described later (FIG. 4). (See (b) and (c)).

  Then, in the eraser 1 configured as described above, when using the eraser 1, the user erases the eraser case 3 with a finger as shown in FIG. 3 (a) or (b). While being held, the thumb and the index finger perform a pressing operation such that the pressing portions 6c, 6c of the pair of upper and lower push-out levers 6, 6 of the feeding portion 4 are sandwiched from the upper and lower sides simultaneously. By this, the pushing action by the elastic deformation of the pushing levers 6, 6 (the elastic deformation of the integrally connecting portion 8 between the base end portion 6a of the pushing levers 6, 6 and the case body 5 + the elastic deformation of the pushing levers 6, 6 itself) is achieved. The eraser main body 2 housed in the eraser case 3 is extended forward so that the eraser can be used.

  Further, in the eraser 1, after the eraser main body 2 is consumed by use, the eraser main body 2 is replaced by a used eraser main body 2 which has been consumed and reduced in size, and a new eraser main body 2 is replaced with the case body. The eraser case 3 can be used continuously by inserting the eraser case 5 into the rear end opening side.

  In this case, the eraser case 3 of the present embodiment is not limited to the dedicated eraser body 2 described above, but can be used alone as a storage case for erasers of the same standard that is commercially available. .

  The mechanism for feeding the eraser main body 2 by the feeding portion 4 will be specifically described below (see FIG. 4).

(1) The pair of push-out levers 6 and 6 of the feed-out portion 4 are in the state shown in FIG. 4A in the normal state, and the push-out engaging portions 6b and 6b of the push-out levers 6 and 6 are engaged with each other. 7 is in a disengaged state separated from the upper and lower side surfaces 2c and 2d of the eraser body 2.

(2) For example, in the illustrated embodiment, as described above, the pressure P is applied so as to sandwich the pressing portions 6c, 6c of the pair of push-out levers 6, 6 from both sides (upper and lower sides in FIG. 4) simultaneously with the thumb and forefinger. Then, in both push-out levers 6, 6, the tip end portions of the engaging surfaces 7, 7 of the push-out engaging portions 6b, 6b are mainly caused by the elastic deformation of the integral connecting portion 8 of the base end portion 6a and the case body 5. As shown in (b), the upper and lower side surfaces 2c, 2d of the eraser body 2 are engaged with each other.

(3) Further, when the pushing portions 6c, 6c of the two pushing levers 6, 6 are pushed P from both sides, the two pushing levers 6, 6 are pushed by the pushing lever 6 in addition to the elastic deformation of the integral connecting portion 8. While itself elastically deforming, the engaging surfaces 7, 7 of the push-out engaging portions 6b, 6b are further strongly engaged with the upper and lower side surfaces 2c, 2d of the eraser main body 2, whereby the eraser main body 2 is moved by a predetermined amount. Push α forward.

  In this case, since the eraser main body 2 is an elastic article, the engaging action of the engaging surfaces 7, 7 of the push-out engaging portions 6b, 6b on the upper and lower side surfaces 2c, 2d of the eraser main body 2 is the eraser main body. By utilizing the elasticity of 2, it is possible to obtain a strong engagement state in which the uneven portions 7a, 7a of the engagement surfaces 7, 7 bite into the upper and lower side surfaces 2c, 2d. As a result, the eraser main body 2 is securely moved by the predetermined amount α without any relative slippage between the push-out engaging portions 6b, 6b of the push-out lever 6 and the upper and lower side surfaces 2c, 2d of the eraser main body 2. It can be pushed forward.

(4) When the pressing force P on the pressing portions 6c, 6c of the pair of pushing levers 6, 6 is released, both pushing levers 6, 6 are elastically returned by the pushing lever 6 itself and the base end portion 6a and the case body. 5 is returned to the normal state by the elastic restoring force of the integrally connected portion 8 with the 5, and the engaging surfaces 7, 7 of the push-out engaging portions 6b, 6b are non-engaged with respect to the upper and lower side surfaces 2c, 2d of the eraser main body 2. It becomes a combined state.

  In this series of feeding operations of the eraser main body 2, the case main body 5 holds the eraser main body 2 with an appropriate holding force as described above, and also pushes the push-out portion 4 (6, 6) forward. The action allows the eraser main body 2 to be extended forward from the case main body 5.

  In other words, the eraser main body 2 is stably held at the current position in the case main body 5 except when the eraser main body 2 is delivered by the delivery portion 4 (6, 6).

  Although not specifically shown, after the eraser 1 can be erased by the feeding operation of the above (3), for example, in this state, that is, with the thumb and the index finger, both push-out levers 6 and 6 can be used. While holding the pressing portions 6c, 6c of the pressing member P in a sandwiched state, the outer peripheral surface of the eraser 1 is gripped, and the leading end portion of the eraser main body 2 that is fed out is a character on the paper to be erased. The above characters and the like are erased by friction by pressing them against the like. By taking such a erasing posture, the erasing main body 2 can stably secure a fixed position with respect to the case main body 5, and efficient erasing can be performed.

  As described above in detail, according to the eraser case 3 of the present embodiment, the eraser main body 2 of a handheld size is stored and held so as to be able to be drawn out forward, and the outer peripheral surface 2c to the eraser main body 2 is formed. A case body 5 that slidably holds 2f, and a feeding portion 4 that is provided in a part of the case body 5 and that pushes out the eraser body 2 by a pushing operation with a finger are provided. Therefore, the specific effects listed below are exhibited.

(A) It is provided in a part of the case main body 5 that slidably holds the outer peripheral surfaces 2c to 2f of the eraser main body 2, and is pushed out by the pushing operation of the eraser main body 2 by a pushing operation with fingers. By providing the parts 4 (6, 6), the eraser main body 2 can be exposed from the case body 5 without directly touching the eraser main body 2 with the fingers, and sweat and oil on the finger surface can be erased. There is no possibility that the eraser body 2 adheres to and does not impair the original characteristics of the eraser body 2 or stains it.

(B) Since the feeding portion 4 (6, 6) is provided with the pushing lever 6 provided corresponding to the outer peripheral surface of the eraser main body 2, the pushing lever 6 is pressed by a finger. The feeding operation can be performed by a simple operation, the structure is small and simple, and the manufacturing cost and the product cost can be kept low.

(C) Since the feeding portion 4 (6, 6) has a simple structure in which the eraser body 2 is pushed out by the pushing operation with the fingers, the shape of the case body 5 is restricted. It is possible to have an arbitrary shape corresponding to the outer shape of the eraser main body 2 that is stored without being erased.

  In other words, the eraser case 3 of the present embodiment is not restricted by the outer shape of the eraser body 2 to which the shape of the case body 5 is applied, and for example, the eraser body has a rectangular parallelepiped shape as shown in the drawing. In addition to No. 2, it can be applied to an eraser main body (not shown) having another outer shape such as a cylindrical shape as in Embodiment 5 described later, and is versatile.

  In addition, since the shape of the case body 5 can be made to follow the outer shape of the eraser body 2 that is housed in this way, the outer shape of the case body 5 is the same as the shape of the eraser body 2. It is possible to realize almost the same shape and size, the increase in shape and size of the eraser 1 which is a small article can be suppressed to the minimum, and the eraser 1 does not become bulky.

(D) In the eraser 1 of the present embodiment, since the eraser main body 2 as a handheld small article is housed and held in the eraser case 3 so as to be able to be drawn forward, (a) to (c) above. The effect of can be effectively exhibited.

  That is, the eraser 1 is a mass-produced product with a low product cost, and the eraser case 3 of the present embodiment, which has a low manufacturing cost and a low product cost as described above, is optimal as a storage case for the eraser 1. is there.

  Further, since the feeding portion 4 of the eraser case 3 has a structure in which the eraser main body 2 accommodated by the pressing operation with fingers is pushed out by the forward pushing action, it is like a conventional eraser case (storage case). In addition, it is not necessary to directly grasp or directly touch the eraser main body 2, and sweat or oil on the surface of the finger adheres to the eraser main body 2 to deteriorate or erase the original eraser performance. Never.

Embodiment 2
This embodiment is shown in FIGS. 5 and 6, and is a modification of the specific structure of the eraser case 3.

  That is, in the eraser case 3 of the present embodiment, the pushing lever 6 is formed in the vicinity of the front open end of the case body 5, and the pushing action space, that is, the operation space of the pushing lever 6 is the front side of the case body 5. It is defined by the open edge portion 10.

In other words, in the first embodiment, the pushing action space of the pushing lever 6 is opened to face the front open end of the case body 5, whereas in the present embodiment, the pushing action space of the pushing lever 6 is opened. Is closed by the front open end edge portion 10 of the case body 5, and the front end portion of the case body 5 is reinforced.
Other configurations and operations are similar to those of the first embodiment.

Embodiment 3
This embodiment is shown in FIG. 7, and the specific structure of the eraser case 3 is modified.

  That is, in the eraser case 3 of the present embodiment, the case body 5 is in the shape of a front open container having the closing portion 12 facing the rear end surface of the eraser body 2.

In other words, the case body 5 of the first embodiment has a front-rear open type tubular body shape that slidably surrounds and holds the outer peripheral surfaces 2c to 2f of the eraser body 2, but in the present embodiment, The rear end portion of the case body 5 is closed by the closing portion 12, and the rear end portion of the case body 5 is covered and reinforced.
Other configurations and operations are similar to those of the first embodiment.

Embodiment 4
This embodiment is shown in FIG. 8, and the specific structure of the feeding unit 4 is modified.

  That is, in the feeding portion 4 of the first embodiment, the pair of push-out levers 6 and 6 are provided in an opposed manner so as to correspond to the upper and lower side surfaces 2c and 2d of the eraser main body 2, which are opposed to each other. The feeding section 4 is provided with a single push-out lever 6 provided corresponding to the upper side surface 2c of the eraser main body 2.

Then, in the eraser 1 configured as described above, when using the eraser 1, while not specifically shown, the user holds the eraser case 3 in a hug-like manner while holding the eraser case 3 with his thumb. By holding the pressing portion 6c of the pushing lever 6 of the feeding portion 4 and the lower side surface of the case body 5 from both the upper and lower sides at the same time with the forefinger, the erasing case 3 is performed by the pushing action due to the elastic deformation of the pushing lever 6. The eraser main body 2 housed inside is extended to the front so that the eraser can be used.
Other configurations and operations are similar to those of the first embodiment.

Embodiment 5
This embodiment is shown in FIG. 9, and the specific structure of the eraser case 3 is modified corresponding to the shape and size of the eraser main body 2.

  That is, in the eraser 21 of the present embodiment, the eraser main body 2 has a cylindrical shape, and the case main body 5 of the eraser case 3 is slidable on the cylindrical outer peripheral surface of the cylindrical eraser main body 2. It has a cylindrical shape that surrounds and holds it.

  A stopper clip 22 is provided at the rear end portion of the case body 5, and the stopper clip 22 is clamped at an appropriate fixed position when the eraser 21 is not in use except when erasing characters. It is used when the eraser 21 is fixedly held, or when the eraser 21 is carried by being pinched in a chest pocket of a suit or the like.

  The shape and size of the inner peripheral surface of the case main body 5 holds the eraser main body 2 with an appropriate holding force, and the eraser main body 2 is moved forward from the case main body 5 by the pushing-out action of the feeding portion 4 which will be described later. It is the same as that of the first embodiment that the setting is made to allow the transfer to.

In addition, in the feeding section 4 of the present embodiment, a pair of push-out levers 6 are provided in correspondence with the facing positions of the cylindrical outer peripheral surface of the eraser body 2.
Other configurations and operations are similar to those of the first embodiment.

Embodiment 6
This embodiment is shown in FIG. 10, and is a modification of the specific structure of the eraser case 3.

  That is, the eraser case 3 of the present embodiment includes the case body 5 with the retreat suppressing portion (retractor suppressing means) 25 that suppresses the reversing of the eraser body 2 in the case body 5.

  The retreat suppressing portion 25 is specifically in the form of a slip prevention structure 26 formed on the inner peripheral surface of the case body 5 so as to extend in the front-rear direction. In the illustrated embodiment, the eraser body 2 is provided. The left and right inner peripheral side surfaces 5e and 5f respectively corresponding to the left and right side surfaces 2e and 2f are linearly extended in the front-rear direction.

  As described above, the retreat suppressing portion 25 is adopted for the left and right side surfaces 2e, 2f that do not interfere with the upper and lower side surfaces 2c, 2d of the eraser main body 2 on which the feeding portion 4 (6, 6) acts. Opposing feeding action and retreat suppressing action of both 4 and 25 are effectively exhibited without interfering with each other.

  Specifically, as shown in FIG. 10 (b), the anti-slip structure 26 has engaging projections 26 a, 26 a, ... Abutting and engaging with the outer peripheral surface of the eraser main body 2 in the front and rear of the case main body 5. A large number of rows are continuously formed in an array.

  The engagement protrusions 26a, 26a, ... Of the anti-slip structure 26 of the illustrated embodiment have a jagged outline shape in which the rear side is formed with a larger inclination angle than the front side in the sectional shape, as shown in the figure. , Thereby engaging the engaging protrusions 26a, 26a, ... With the left and right side surfaces 2e, 2f of the eraser body 2 housed in the case body 5 more firmly in the backward direction than in the forward direction. It is considered as a structure.

  Correspondingly, the shape of the inner peripheral surface of the case main body 5 is set to be slightly larger than that of the eraser main body 2 as compared with the case of the first embodiment, so that The eraser main body 2 is held with an appropriate holding force by the cooperation of the above, and the eraser main body 2 is allowed to be forwarded from the case main body 5 by the forward pushing action of the feeding portion 4.

  The shape and dimensions of the inner peripheral surface of the case body 5 may be set under the same conditions as those of the first embodiment depending on the purpose. In this case, the case body 5 is larger than that of the first embodiment. The eraser main body 2 is held with a strong holding force.

  In this case, since the eraser main body 2 is an elastic article, the engaging surfaces 7, 7 of the push-out engaging portions 6b, 6b of the push-out levers 6, 6 described above with respect to the upper and lower side surfaces 2c, 2d of the eraser main body 2. Similar to the engaging action of the non-slip structure 26, the anti-slip structure 26 further functions to suppress the backward movement by utilizing the elasticity of the eraser main body 2 so that the anti-slip structure 26 has the right and left side surfaces 2a, 2b of the eraser main body 2. It is possible to obtain a strong engagement state in which the eraser body 2 is bitten in to a certain extent, and it is possible to reliably prevent the eraser body 2 from retracting.

  In the eraser case 3 configured as described above, the retracting restraining portion 25 that restrains the eraser body 2 from retracting in the case body 5 is provided, so that the pushing-out action of the feeding portion 4 to the front is performed. In consideration of the above, the shape and dimension of the eraser body 2 on the inner peripheral surface of the case body 5 can be easily and surely set, and the product cost is low and the structure is optimal as a storage case for eraser 1 which is a mass-produced product. is there.

  The specific shape of the engaging protrusions 26a, 26a, ... Of the slip prevention structure 26 is not limited to the above-mentioned configuration, and other configurations having the same function can be adopted according to the purpose. A configuration as shown in FIG. 10C or 10D can be adopted.

  That is, the anti-slip structure 26 engaging projections 26a, 26a, ... Shown in FIG. 10 (c) have a jagged outline shape in which the front and rear sides are formed with substantially the same inclination angle in the cross-sectional shape, as shown in the figure. As a result, the engaging projections 26a, 26a, ... Are engaged with the left and right side surfaces 2e, 2f of the eraser body 2 housed in the case body 5 equally in both forward and backward directions. It is designed to fit together.

Further, the anti-slip structure 26 engaging projections 26a, 26a, ... Shown in FIG. 10 (c) are formed in the shape of a thin plate inclined forward as shown in the drawing, whereby the engaging projections 26a are formed. , 26a, ... are firmly engaged with the left and right side surfaces 2e, 2f of the eraser body 2 housed in the case body 5 in the backward direction rather than the forward direction.
Other configurations and operations are similar to those of the first embodiment.

Embodiment 7
This embodiment is shown in FIG. 11, and is a modification of the specific structure of the retreat suppressing portion 25 of the eraser case 3.

  That is, the eraser case 3 of the present embodiment is provided with the case body 5 with the retreat suppressing portion (retractor suppressing means) 25 that suppresses the retreat of the eraser body 2 in the case body 5. In, the specific structure of the receding suppressing portion 25 is modified.

  The retreat suppressing portion 25 of the present embodiment includes a moving member 30 that supports and moves the eraser main body 2, and a retreat preventing structure 31 provided in the case main body 5.

  The moving member 30 supports and moves the rear end surface 2b of the eraser body 2, and specifically, the contoured outer peripheral surface slidably guided by the inner peripheral surface of the case body 5, in other words, the character. It is in the form of a substantially rectangular thick plate member having a contoured outer peripheral surface corresponding to the outer peripheral surface contour of the eraser body 2.

  The moving member 30 can be locked to the retreat preventing structure 31 on a part of its outer peripheral surface, specifically, on the left and right side surfaces corresponding to the left and right side surfaces 2e and 2f of the eraser main body 2 that is supported and fixed. The locking projections 30a, 30a, ... Are provided, and a fitting projection 30b that is fitted and fixed to the rear end surface 2b of the eraser body 2 is provided on the front surface thereof.

  The fitting protrusion 30b is in the form of a cylindrical protrusion as shown in FIG. 11B, and a cylindrical recess 32 (FIG. 11A) corresponding to the cylindrical protrusion 30b is formed on the rear end surface 2b of the eraser main body 2. The movable member 30 is integrally supported and fixed to the rear end surface 2b of the eraser main body 3 by removably fitting the cylindrical protrusion 30b into the cylindrical recess 32.

  The receding prevention structure 31 is formed on the inner peripheral surface of the case body 5 to prevent the moving member 30 from moving backward, that is, the eraser body 2 from moving backward. The locking projections 30a, 30a, ... Is composed of a plurality of locking portions 31a, 31a, ... Which can be locked to the rear of the case body 5 (FIG. 11 (c)).

  The receding prevention structure 31 is specifically formed to extend in the front-rear direction on the inner peripheral surface of the case body 5, and in the illustrated embodiment, corresponds to the left and right side surfaces 2e, 2f of the eraser body 2, respectively. The left and right inner peripheral side surfaces 5e and 5f are formed to extend linearly in the front-rear direction.

  Specifically, as shown in FIG. 11 (c), the locking portions 31a, 31a, ... Constituting the receding prevention structure 31 are formed such that the rear side has a larger inclination angle than the front side in the sectional shape. Has a serrated contour shape, and correspondingly, the locking projections 30a, 30a, ... Of the moving member 30 are formed in the opposite cross-sectional shape, that is, the front side is formed with a larger inclination angle than the rear side. It has a jagged outline shape.

  As a result, the locking projections 30a, 30a, ... Of the moving member 30 supporting and moving the eraser main body 2 move in the forward direction with respect to the locking portions 31a, 31a ,. It has a structure in which it is firmly engaged in the backward direction while allowing elastic movement and passage.

  In the eraser 1 configured as described above, the eraser main body 2 is extended forward from the case main body 5 by the pushing-out action of the feeding portion 4, and the backward movement suppressing action of the backward movement suppressing portion 25 is performed. Thus, the eraser main body 2 is stably held at the current position in the case main body 5 except during the feeding operation by the feeding portion 4.

  Particularly, in the retreat suppressing part (retracting suppressing means) 25, the locking protrusions 30a, 30a, ... Of the moving member 30 that supports and moves the eraser main body 2, the locking parts 31a of the reverse preventing structure 31 of the case main body 5, By allowing the elastic movements 31a, ... In the forward direction and firmly engaging in the backward direction, the eraser main body 2 is provided with a case. As a result of being integrated with the main body 5 and stably securing a fixed position, efficient and reliable use of erasing is possible.

Further, after the eraser main body 2 is consumed by use, a new eraser main body 2 is replaced with the used eraser main body 2 which has been consumed and reduced in size, and a new eraser main body 2 is attached to the case main body 5 from the rear end opening side. By inserting, the eraser case 3 can be continuously used. In this case, the eraser case 3 of the present embodiment is not limited to the dedicated eraser main body 2 described above, and can be used alone as a commercially available eraser storage case of the same standard. is there.
Other configurations and operations are similar to those of the sixth embodiment.

Embodiment 8
This embodiment is shown in FIGS. 12 and 13, and is a modification of the specific structure of the retreat suppressing portion 25 of the eighth embodiment.

  That is, the backward movement suppressing portion 25 of the eraser case 3 of the present embodiment is different from that of the seventh embodiment in that the backward movement suppressing portion 25 of the eraser case 3 includes the moving member 30 that supports and supports the eraser body 2 and the backward movement preventing structure 31 provided in the case body 5. It is similar to the one.

  The moving member 30 of the present embodiment is in the form of a substantially rectangular thick plate member having a contoured outer peripheral surface that is slidably guided by the inner peripheral surface of the case body 5, and the front surface of the eraser body 2 is formed. By providing a fitting protrusion 30b in the form of a cylindrical protrusion that is fitted and fixed to the rear end face 2b, and a corresponding cylindrical recess 32 is formed on the rear end face 2b of the eraser body 2, the moving member 30 is formed. The eraser body 3 is integrally supported and fixed to the rear end surface 2b. These structures are the same as in the seventh embodiment.

  Part of the outer peripheral surface of the moving member 30, specifically, the left and right side surfaces 30e and 30f corresponding to the left and right side surfaces 2e and 2f of the eraser body 2 that is supported and fixed, respectively, can be locked by the retracting prevention structure 31. Protrusions 33 are provided respectively.

  The receding prevention structure 31 includes a plurality of locking holes 31b, 31b, ... By which the pair of left and right locking projections 33, 33 of the moving member 30 can be locked to the rear of the case body 5.

  The receding prevention structure 31 is specifically formed to extend in the front-rear direction on the inner peripheral surface of the case body 5, and in the illustrated embodiment, corresponds to the left and right side surfaces 2e, 2f of the eraser body 2, respectively. The left and right inner peripheral side surfaces 5e and 5f are formed to extend linearly in the front-rear direction.

  The locking holes 31b, 31b, ... Constituting the receding prevention structure 31 are specifically in the form of vertically elongated through holes as shown in FIG. 12, and are formed on the left and right side wall portions of the case body 5. They are linearly arranged in the front-rear direction at equal intervals and face the left and right inner peripheral side surfaces 5e, 5f.

  Correspondingly, as shown in FIGS. 13 (a) to 13 (c), the locking projections 33, 33 of the moving member 30 have their front side surfaces 33a directed forward. In addition to forming a tapered taper surface, the rear side surface 33b is in the form of a vertically long locking rib having a wedge-shaped plane cross-sectional shape including a plane perpendicular to the front-rear direction of the case body 5.

As a result, the pair of left and right locking projections 33, 33 of the moving member 30 supporting and moving the eraser main body 2 in the forward direction with respect to the locking holes 31b, 31b, ... The structure is configured to firmly engage and fix in the backward direction while allowing the elastic movement of the above.
Other configurations and operations are similar to those of the seventh embodiment.

  It should be noted that the above-described Embodiments 1 to 8 merely show preferred embodiments of the present invention, and the present invention is not limited to these, and various design changes can be made within the scope.

  For example, in the illustrated first to eighth embodiments, the eraser case 3 (case body 5 + feeding section 4) is an injection-molded product made of plastic, but it is made of another constituent material that can have the same structure and function. It is also possible to As an example, it is also possible to make a sheet metal molded product in which the case body 5 and the feeding portion 4 of the eraser case 3 are formed from a single thin sheet metal.

  Further, the eraser of the present invention can be applied to the case where the eraser main body 2 is not only the plastic eraser of Embodiments 1 to 8 but also a rubber eraser (eraser) or a thermoplastic elastomer eraser. Is.

  Further, the eraser case (small article case) 3 of the present invention is a handheld small-sized article (article body) having a similar shape configuration in addition to the storage case (eraser case) for eraser of the first to eighth embodiments. ) Is also applicable as a storage case for storing and holding, and in particular, it is suitable for various small articles having elasticity, and also for small articles having no elasticity. Is.

  As an example, (a) the small article having elasticity is applicable to sausage, chewing gum, kamaboko, etc. that are rod-shaped foods, and (b) the small article having no elasticity is chalk (stationery), Crayons (art materials), pencils (writing tools), stick-shaped grindstones (polishing tools), stick-shaped baked goods (food), stick-shaped chocolate (food), stick-shaped candy (food), butter (food), lipstick (cosmetics), eyebrow It can be applied to (cosmetics), eyeliner (cosmetics), concealer (cosmetics), eye shadow (cosmetics), pencil (writing instruments), and the like.

1 eraser (small article)
2-character eraser body (article body)
2b Rear end surface 2c of the eraser body, 2d Upper and lower side surfaces (outer peripheral surface) of the eraser body
2e, 2f Left and right side surfaces (outer peripheral surface) of eraser body
3-letter erase case (small article case)
4 Feeding unit (feeding means)
5 Case main bodies 5e, 5f Left and right inner peripheral side surfaces 6 of the case main body 6 Push-out lever 6a Push-out lever base end portion 6b Push-out lever push-out engaging portion (tip portion)
6c Pushing part of push-out lever (mountain top)
7 Engaging surface 7a of push-out engaging part 7 Concavo-convex part of engaging surface 8 Integrated connection part 10 Front open end edge part 21 Case eraser (small article)
22 Stop Clip 25 Retreat Suppression Section (Retraction Suppression Means)
26 Anti-Slip Structure 26a Engagement Protrusion 30 of Anti-Slip Structure 30 Moving Member 30a Locking Protrusion 30b of Moving Member Fitting Protrusion 31 of Moving Member Retraction Preventing Structure 31a Locking Part 31b of Retracting Preventing Structure Locking Hole 33 of Retracting Preventing Structure Locking protrusion of moving member

Claims (23)

A device for storing and holding a handheld article body so that it can be drawn forward.
A case body that slidably holds the outer peripheral surface of the article body;
Provided in a part of the case body, and is provided with a delivery means for delivering the article body by a forward pushing operation by a pressing operation with fingers.
The feeding means includes an extrusion lever provided corresponding to the outer peripheral surface of the article body,
The push-out lever is integral with a case body formed of the same material as the case body, and a base end portion of the push-out lever is integrally connected to the case body, and a tip portion of the push-out lever is provided on an outer peripheral surface of the article body. It is a pushable engagement part that can be locked,
A structure in which at least the proximal end portion of the pushing lever and the case body are integrally deformed by elastic deformation so that the pushing engagement portion of the pushing lever engages with the outer peripheral surface of the article body and pushes the article body forward. It is said that the small article case . In addition to the elastic deformation of the integrally connected portion between the base end of the pushing lever and the case body, the pushing engagement portion of the pushing lever engages with the outer peripheral surface of the article body due to the elastic deformation of the pushing lever itself. to a small article case according to claim 1, characterized in that there is a structure to push the article body forward. The push-out lever is in the form of a plate-like member that is bent and formed in a chevron V-shape, and the front and rear ends thereof form the push-out engaging portions with the base end portion, respectively, and the chevron in the middle of these front and rear end portions is formed. The small article case according to claim 1 , wherein the top part is a pressing part that is pressed with fingers. The small article case according to claim 3 , wherein the base end portion, the push-out engaging portion, and the pressing portion of the push-out lever have a planar shape that continuously extends linearly in the axial direction of the article body. The push-out engagement portion is an engagement surface whose lower surface is in surface contact with the outer peripheral surface of the article body,
This engagement surface, a small article case according to claim 1, characterized in that the uneven portion to facilitate engagement action is provided with respect to the outer peripheral surface of the article body. The small article case according to claim 5 , wherein the engaging action of the engaging surface of the push-out engaging portion with the outer peripheral surface of the article body is configured to utilize elasticity of the article body. The small article case according to claim 1 , wherein a front end edge of the push-out engaging portion has a contour shape formed by a circular curve curved forward. Together with the push-out lever is formed in the vicinity of the front open end of the case body, according to claim 1 which is extruded interaction space of the push-out lever, characterized in that it is open to face the front open end of the case body The small article case described in. The push-out lever is formed near a front open end of the case body, and a push-out action space of the push-out lever is defined by a front open end edge portion of the case body. The small article case described in 1 . The small article case according to claim 1, wherein the case body has a front and rear open-type tubular body shape that slidably surrounds and holds the outer peripheral surface of the article body. The case body has a front open type container shape that slidably surrounds and holds the outer peripheral surface of the article body, and has a closing portion facing the rear end surface of the article body. The small article case according to item 1. The shape and size of the inner peripheral surface of the case body holds the article body with an appropriate holding force, and the article body is pushed forward from the case body by the forward pushing action of the feeding means. The small article case according to claim 1, wherein the small article case is set to allow it. The small article case according to claim 1, wherein the case body is provided with a retreat suppressing unit that suppresses retreat of the article body in the case body. The retreat suppressing means is in the form of a non-slip structure formed in the inner peripheral surface of the case body to extend in the front-rear direction,
14. The small size according to claim 13 , wherein the non-slip structure comprises a plurality of engaging projections that are in abutting engagement with the outer peripheral surface of the article body in a continuous array in the front-rear direction of the case body. Goods case. The retreat suppressing means includes a moving member that supports and moves the rear end surface of the article body, and a retreat preventing structure that is formed on the inner peripheral surface of the case body to prevent the moving member from retreating.
The moving member has an outer peripheral surface of a contour shape that is slidably guided by an inner peripheral surface of the case body, and includes a locking projection that can be locked to the receding prevention structure on the outer peripheral surface,
The small article case according to claim 13 , wherein the receding prevention structure includes a plurality of locking portions that allow the locking projections of the moving member to be locked rearward of the case body. The small article case according to any one of claims 1 to 15 , wherein the case body and the feeding means are injection-molded articles made of plastic. The small article case according to claim 16 , wherein the base end portion of the push-out lever has a cross-sectional shape that is thicker than other portions. 16. The small article case according to claim 1, wherein the case body and the feeding means are sheet metal molded products made of thin metal. An eraser, which is an eraser body as a handheld article body and is stored and held in a small article case according to any one of claims 1 to 18 so as to be able to be drawn forward. 20. The eraser according to claim 19 , wherein the eraser main body has a rectangular parallelepiped shape, and the push-out lever of the feeding means is provided so as to correspond to at least one outer peripheral side surface of the eraser main body. . 21. The eraser according to claim 20 , wherein a pair of the push-out levers are provided so as to respectively correspond to two outer peripheral side surfaces of the eraser main body. Together with the eraser body is a cylindrical shape, push-out lever of the feeding means, according to claim 19, characterized in that are provided corresponding to a portion of the cylindrical outer circumference of at least the eraser body Erase. 23. The eraser according to claim 22 , wherein a pair of the push-out levers are provided so as to correspond to respective opposing positions of the cylindrical outer peripheral surface of the eraser main body.

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