JP2014063238A - Portable electronic terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure that locks a stylus pen to a body without providing elastic means requiring to have a cutting hole formed in the body or providing the elastic means having a risk of imparting damage to the stylus pen.SOLUTION: In a portable electronic terminal device 10 including a stylus pen storage part for storing a stylus pen 200 in an attachable and detachable manner, the stylus pen storage part includes: a stylus pen storage space; and a lock part that has a first projection projecting toward an interior of the stylus pen storage space, and a second projection projecting toward the interior of the stylus pen storage space from a diagonal opposite position with respect to the first projection. The stylus pen 200 has a pen body 210, and a flat plate-like tab 220 projecting toward an outside in a radial direction from a side face along a center axis of the pen body 210. Further, a first groove engaging with the first projection is provided in a first face of the tab 220 and a second groove corresponding to the second projection is provided in a second face of the tab 220.

Description

  The present invention relates to a portable electronic terminal device, and more particularly to a portable electronic terminal device having a mechanism for detachably storing a stylus pen for input operation.

  In portable electronic terminal devices such as tablet computers, electronic dictionaries, and portable electronic game machines, an input device such as a touch panel is provided on the surface of a display device such as a liquid crystal unit. These touch panels can be input not only by bringing a user's fingers directly into contact with or approaching the panel surface, but also by using a pointing device such as a stylus pen.

  For this reason, in recent portable electronic terminal devices, devices having various mechanisms for detachably storing a stylus pen have been developed. For example, the following Patent Document 1 (Japanese Patent Laid-Open No. 11-305928) forms an opening of a storage groove for storing a touch pen so as to extend from one side surface of a casing of a portable electronic device to an adjacent surface. Further, there is disclosed a touch pen storage structure in which a holding means for elastically holding the touch pen is provided inside the storage groove so that the touch pen can be stored and taken out from either a direction parallel to or perpendicular to the axis of the touch pen.

  Further, the following Patent Document 2 (Japanese Patent Laid-Open No. 7-175573) includes a stylus pen that includes a pen body and a pen holder portion that protrudes from one end of the outer peripheral surface of the pen and extends along the shaft portion of the pen. A structure is disclosed in which when the stylus pen is housed in the pen housing portion of the computer main body, the thin wall portion of the pen housing portion is held between the pen holder portion and the outer peripheral surface of the stylus pen. In addition, since this pen holder part is connected with the outer peripheral surface of the pen at one end, it has elasticity.

Japanese Patent Application Laid-Open No. 11-305928 JP-A-7-175573

  As disclosed in the above-mentioned Patent Document 1, in order to form an elastic holding means inside the stylus pen housing portion, for the convenience of using a mold, it is cut around the elastic holding means inside the housing. The holding means had to be elastic by forming a hole. If such a hole is formed inside the housing, when the user spills water on the housing, water may enter the inside of the main body, which may cause the apparatus to break down.

  In addition, when an elastic pen holder part or the like is formed on the stylus pen side as in Patent Document 2, there is a problem in that it is easily damaged when stress is applied to the connection part between the pen holder part and the pen body.

  Accordingly, an object of the present invention is to provide a portable electronic terminal device having a mechanism for detachably storing a stylus pen, by providing an elastic means that requires the formation of a cut-off hole on the main body side, or damage on the stylus pen side. It is an object of the present invention to provide a structure for locking a stylus pen to a main body without providing an elastic means which may cause

  The present invention is a portable electronic terminal device including a stylus pen housing portion that detachably accommodates a stylus pen, the stylus pen housing portion facing a stylus pen housing space and the stylus pen housing space. A locking portion having a first protrusion protruding and a second protrusion protruding toward the inside of the stylus pen housing space from a position opposite to the first protrusion, and the stylus pen Includes a pen body and a tabular tab that protrudes radially outward from the side surface along the central axis of the pen body, and a first surface of the tab engages the first protrusion. 1 groove, and the second groove is provided on the second surface of the tab at a position corresponding to the second protrusion.

  According to the portable electronic terminal device of the present invention, when the portable electronic terminal device is housed in the stylus pen housing space, the first projection projecting toward the inside of the stylus pen housing space and the position obliquely opposite thereto. The groove on both sides of the tab portion provided in the stylus pen can be locked to the locking portion having the second protrusion protruding toward the inside of the stylus pen accommodating space from the stylus pen. This eliminates the need to form a cut-out hole or the like in the stylus pen housing space for the purpose of forming an elastic means for locking the stylus pen, and prevents a pollutant such as water from entering the inside. It becomes possible. Further, it is possible to eliminate the need to form an elastic means that may be damaged on the stylus pen side, and it is possible to extend the life of the stylus pen.

  In the aspect of the present invention, the thickness of the tab is greater than a virtual distance between the protrusions when the first protrusion and the second protrusion are opposed to each other, and the first protrusion It is smaller than the actual shortest distance of the second protrusion.

  According to one aspect of the present invention, the thickness of the tab is greater than the virtual distance between the protrusions when the first protrusion and the second protrusion are facing each other, and the first protrusion and the second protrusion By making the distance less than the shortest distance, it is possible to smoothly insert between the first protrusion and the second protrusion, and at the same time, the engagement state between both protrusions and the groove is not easily released. Can be.

  In one embodiment of the present invention, the first protrusion and the second protrusion have an asymmetric shape.

  According to one aspect of the present invention, since the first protrusion and the second protrusion are not symmetrical, the engagement force between the first groove and the first protrusion, the second groove, and the second protrusion The engagement force between the protrusions can be changed, the engagement state between the protrusions and the grooves can be easily released, and the stylus pen can be easily pulled out from the stylus pen housing space.

  Further, in one aspect of the present invention, the stylus pen housing portion has a slot-like opening around the locking portion, and when the stylus pen is housed in the stylus pen housing portion, A part of the tab protrudes from the opening.

  According to one aspect of the present invention, when the stylus pen is accommodated in the stylus pen accommodating space, a part of the tab protrudes from the slot-shaped opening. Therefore, the user can pull out the stylus pen from the stylus pen accommodation opening by hooking and pulling the protruding portion with a finger.

  According to the portable electronic terminal device of the present invention, a mechanism for detachably storing the stylus pen is provided, and elastic means that requires the formation of a cut-off hole is provided on the main body side, or the stylus pen side is damaged. It is possible to provide a structure for locking the stylus pen to the main body without providing any elastic means that may cause fear.

FIG. 1A is a front view of the tablet computer 10 of the present embodiment, FIG. 1B is a plan view, and FIG. 1C is a left side view. FIG. 2 is an external perspective view of the tablet computer 10 according to the present embodiment viewed from the front with the stand removed. FIG. 3 is an external perspective view of the tablet computer 10 shown in FIG. FIG. 4 is an exploded perspective view of the tablet computer 10 with the stand of FIG. 2 removed, disassembled with the front side facing up. 5A is an enlarged view in which the IVA portion of FIG. 4 is inverted upside down, and FIG. 5B is an enlarged view of the IVB portion of FIG. FIG. 6 is an enlarged cross-sectional view of FIG. 2 taken along the line VI-VI. FIG. 7A is an external perspective view of the stylus pen with the first surface of the stylus pen tab facing up, and FIG. 7B is the stylus pen with the second surface of the stylus pen tab facing down. It is an external perspective view. FIG. 8 is an enlarged cross-sectional view of the stylus pen of FIG. 7A taken along line VIII-VIII. FIG. 9 is an external perspective view of the tablet computer 10 in which the stylus pen is accommodated. FIG. 10 is a cross-sectional view taken along the line XX of FIG. 9 and shows a state where the tablet computer 10 and the stylus pen are engaged.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, a tablet computer will be described as an example of the portable electronic terminal device of the present invention, and the present invention is not limited to this tablet computer. The present invention should be equally applied to other types of portable electronic terminal devices described in the scope of claims such as electronic game machines.

  In the following description, when referring to front, back, top, bottom, right side, and left side, the upper side of the screen of the tablet computer 10 shown in FIG. 1A is up, the lower side of the page is down, the right side of the page is the right side, the left side of the page is the left side, In FIG. 1C, the right side of the page is the front and the left side is the back.

  With reference to FIG. 1, the structure of the tablet computer 10 of this embodiment is demonstrated. 1A is a front view of the tablet computer 10 of the present embodiment, FIG. 1B is a plan view, and FIG. 1C is a left side view. The tablet computer 10 includes a main body 100 and a stylus pen 200 (see FIG. 2) that is detachably accommodated in the main body 100. The main body 100 includes a housing composed of a front housing 110 and a rear housing 120 each formed of a resin, and a stand 130. The front housing 110 includes a rectangular front surface 111, and a rectangular opening 112 is formed in the front surface 111. A display device such as a liquid crystal display panel unit and an input device (hereinafter referred to as a touch screen) 113 such as a touch panel attached to the surface are held on the back side of the front surface 111, and an inner portion of the opening 112 serves as an image display region. It can be viewed from the front, and can be operated from the front by the user's fingers or the stylus pen 200 as an operation input area.

The rear housing 120 has a rectangular shape corresponding to the shape of the front housing 110, and the touch screen 113 and a control board disposed inside the housing are disposed between the front housing 110 and a separator 150 (see FIG. 4) described later. Contain and protect. The stand 130 is attached to the lower rear side of the rear housing 120 by a locking means (not shown). The stand 130 includes a housing mounting portion 131 that extends in a direction parallel to the front housing 110 and the rear housing 120 and a protrusion 132 that protrudes rearward with respect to the front housing 110 and the rear housing 120 at a predetermined angle. Composed.

  When the tablet computer 10 is placed on a support surface such as a table, the stand 130 has the main body 100 at a predetermined angle between the bottom surface 133 of the stand 130 and the tip of the protruding portion 132, that is, the touch screen 113 serves as the support surface. It can be supported at an angle close to vertical. On the other hand, the stand 130 can support the liquid crystal display panel unit 113 in a substantially horizontal state by placing the front end portion of the protrusion 132 and the upper surface 121 of the rear housing 120 on the support surface.

  The front housing 110, the rear housing 120, and the stylus pen 200 of the tablet computer 10 will be described in more detail with reference to FIGS. 2 is an external perspective view of the tablet computer 10 according to the present embodiment with the stand removed from the front, and FIG. 3 shows the stand removed from the tablet computer 10 of FIG. It is the external appearance perspective view seen back upwards in the state. An opening 140 for inserting the stylus pen 200 is provided in the vicinity of the joint portion between the upper surface 114 and the left side surface 115 of the front housing 110 and in the vicinity of the joint portion between the upper surface 121 and the left side surface 122 of the rear housing 120. Most of the openings 140 are formed in the upper surface 114 of the front housing 110 and the upper surface 122 of the rear housing 120, and a part is formed in the left side surface 115 of the front housing 110 and the left side surface 122 of the rear housing 120. Is done. Further, a slot 141 is formed from the opening 140 to the left side surface 115 and the left side surface 122. The opening 140 and the slot 141 communicate with each other. The opening 140 and the slot 141 will be described later in detail.

  The stylus pen 200 can be inserted into the opening 140 in the direction of arrow P, and when inserted, the pen body portion of the stylus pen 200 is formed inside the front housing 110 and the rear housing 120. It is detachably accommodated in a stylus pen accommodating portion (described later).

  Next, the opening 140, the slot 141, and the stylus pen housing portion formed inside the front housing 110 and the rear housing 120 will be described with reference to FIGS. 4 is an exploded perspective view in which the tablet computer 10 with the stand of FIG. 2 removed is disassembled with the front face up, and FIG. 5A is an enlarged view of the IVA portion of FIG. 5B is an enlarged view of the IVB portion of FIG. 4, and FIG. 6 is an enlarged cross-sectional view of FIG. 2 taken along the line VI-VI.

  The front housing 110 has a bottom surface 116 and a right side surface 117 in addition to the above-described front surface 111, top surface 114, and left side surface 115, and has a frame-like structure. A separator 150 is accommodated on the rear surface side of the front housing 110. The separator 150 is formed of resin in the same manner as the housing. The separator 150 has a slightly smaller size than the front housing 110, and includes a top surface 151, a left side surface 152, a bottom surface 153, a right side surface 154, and a back surface 155. The upper surface 151, the left side surface 152, the bottom surface 153, the right side surface 154, and the back surface 155 form an accommodation space SS, and the touch screen 113 is disposed between the accommodation space SS and the rear side of the front surface 111 of the front housing 110. Is held.

An extension portion 156 that protrudes further to the left is formed on the back surface 155 side of the left side surface 152 of the separator 150, and a left wall surface 157 that protrudes forward is provided at the left end portion of the extension portion 156. The left side surface 152, the extending portion 156, and the left wall surface 157 of the separator 150 have a bowl-shaped cross-sectional shape. When the separator 150 is accommodated on the rear surface of the front housing 110, the rear surface of the front surface 111 of the front housing 110, the left side surface 152 of the separator 150, the extension portion 156, and the left wall surface 157 form a stylus pen accommodation portion PS. Is done.

  The stylus pen housing part PS and the housing space SS are completely separated by the left side surface 152. For example, moisture or the like cannot enter the housing space SS from the stylus pen housing part PS.

  The rear housing 120 includes a top surface 121, a left side surface 122, a bottom surface 123, a right side surface 124, and a back surface 125. A control board (not shown) of the tablet computer 10 is accommodated in a space formed between the top surface 121, the left side surface 122, the bottom surface 123, the right side surface 124, the back surface 125, and the separator 150.

  The opening 140 for inserting the stylus pen 200 and the slot 141 are configured by a semicircular recess and a half slot formed symmetrically at the joint portion of the front housing 110 and the rear housing 120, respectively. That is, the semicircular first recess 140A formed from the vicinity of the left end of the upper surface 114 of the front housing 110 to the vicinity of the upper end of the left side 115, and downward from the left end of the first recess 140A to the left side 115. The first half slot 141A formed by cutting the left side surface 115 into a rectangular shape and the second semicircular second formed from the vicinity of the left end of the upper surface 121 of the rear housing 120 to the vicinity of the upper end of the left side surface 122. And the second half slot 141B formed by cutting the left side surface 122 into a rectangular shape downward from the left end to the left side surface 122 of the second recess 140B.

  When the front housing 110 and the rear housing 120 are coupled to each other, the first recess 140A and the second recess 140B form a circular opening 140, and the first half slot 141A and the second half slot 141B. Forms a slot 141 communicating with the left side of the opening 140.

  Further, a first rib 142 </ b> A is formed on the inner side of the half slot 141 </ b> A provided in the front housing 110 substantially parallel to the left side surface 115. The first rib 142A is formed with a first locking protrusion 143A that protrudes rearward (upward in FIG. 5A). The shape of the first locking protrusion 143A is an acute triangular shape, but the present embodiment is not limited to this shape, and may be a polygonal shape with a protruding tip portion.

  A second rib 142B is formed on the inner side of the second half slot 141B substantially in parallel with the left side surface 122. The second rib 142B is formed with a second locking protrusion 143B that protrudes forward. The shape of the second locking protrusion 143B is a triangular shape with a more obtuse angle than the first locking protrusion 143A, a trapezoid, a semicircle, or the like. The first rib 142A and the second rib 142B are in a position facing each other inside the slot 141 when the front housing 110 and the rear housing 120 are coupled to each other.

  On the other hand, as shown in FIG. 6, the first locking protrusion 143A formed on the first rib 142A and the second locking protrusion 143B formed on the second rib 142B face each other. Regardless of the positional relationship, the second locking protrusion 143B is positioned behind the first locking protrusion 143A, that is, below the slot 141 (ie, on the left side in FIG. 6). That is, the first locking protrusion 143A and the second locking protrusion 143B are in a positional relationship opposite to each other with the slot 141 interposed therebetween.

Here, as shown in FIG. 6, the shortest width between the first locking protrusion 143A and the second locking protrusion 143B is Wi (hereinafter referred to as the shortest distance Wi between protrusions), and the first locking protrusion If the virtual distance between the protrusions when 143A and the second locking protrusion 143B are directly facing each other is Wr (protrusion facing virtual distance Wr), then Wr> Wi.

  Next, the stylus pen 200 of the present embodiment will be described with reference to FIGS. 7A is an external perspective view of the stylus pen with the first surface of the stylus pen tab facing up, and FIG. 7B is the stylus pen with the second surface of the stylus pen tab facing down. FIG. 8 is an enlarged perspective view of the stylus pen of FIG. 7A cut along the line VIII-VIII.

  The stylus pen 200 is made of resin. The stylus pen 200 has a cylindrical pen body 210. A tapered pointer 211 is formed at one end of the pen body 210, and an input operation can be performed by pressing the surface of the touch screen 113. The pointer 211 is made of a relatively soft resin. The pointer 211 and the pen body 210 may be formed of the same material or different materials. A plurality of annular grooves 213 are formed around the part close to the pointer 211 of the pen main body 210, and function as an anti-slip when the user grips with hands. A flat tab 220 is formed on the end 212 of the pen body 210 opposite to the pointer 211 and protrudes from the side surface to one radial direction along the central axis of the pen body 210.

  The length of the tab 220 in the central axis direction of the pen body 210 corresponds to the length of the slot 141 formed in the body 100, and the stylus pen 200 is inserted into the stylus pen housing part PS from the opening 140 of the body 100. In this case, the tab 220 has such a length that the tab 220 can be received in the slot 141. Further, the width of the tab 220 in the radial direction is such that when the tab 220 is received in the slot 141, the outer end portion of the tab 220 protrudes outside the slot 141 beyond the left side surfaces 115 and 122 of the housing.

Further, the thickness Wt between the first surface 221A and the second surface 221B of the tab 220 (hereinafter referred to as the tab thickness Wt) is the shortest distance between protrusions Wi> tab thickness Wt> protrusion-facing virtual distance Wr. It is made possible to pass between the first locking projection 143A and the second locking projection 143B protruding into the slot 141.

  The tab 220 is provided with an outer edge portion 222 that is thicker than other portions of the tab 220 and is edged from the end portion 212 of the pen body 210 to the outermost end portion of the tab 220. The outer edge 222 is not formed at the end of the tab 220 on the pointer side.

  A first groove 223A is formed on the first surface 221A of the tab 220, and a second groove 223B is formed on the second surface 221B. The first groove 223A and the second groove 223B are each formed in a direction perpendicular to the axial direction of the pen body 210. The first groove 223A and the second groove 223B are not formed at corresponding positions on the first surface 221A and the second surface 221B of the tab 220 as shown in FIG. Formed in position. Specifically, the first groove 223A is formed at a position close to the end 212 on the opposite side of the pointer 211, while the second groove 223B is formed at a position close to the pointer 211.

  Next, a case where the stylus pen 200 is inserted into the opening 140 of the main body 100 of the tablet computer 10 as indicated by an arrow P in FIGS. 2 and 3 will be described with reference to FIGS. 9 and 10. 9 is an external perspective view of a state in which the stylus pen is accommodated in the tablet computer 10, and FIG. 10 is a cross-sectional view taken along line XX of FIG. 9, in which the tablet computer 10 and the stylus pen are engaged. FIG.

The pen body 210 of the stylus pen 200 is inserted through the opening 140 into the stylus pen housing portion PS surrounded by the back surface of the front surface 111 of the front housing 110, the left side surface 152 of the separator 150, the extension portion 156, and the left wall surface 157. When the tab 220 of the stylus pen 200 is inserted into the slot 141, the stylus pen 200 can be accommodated and engaged with the tablet computer 10 as shown in FIG.

  During this insertion operation, the front end portion of the first surface 221A of the tab 220 of the stylus pen 200 comes into contact with the first locking protrusion 143A. Therefore, the traveling direction of the tab 220 changes in such a direction as to get over the first locking protrusion 143A. Next, the front end portion of the second surface 221B of the tab 220 abuts on the second locking protrusion 143B. As a result, the tab 220 changes its traveling direction again so as to get over the second locking projection 143B, and passes between the first locking projection 143A and the second locking projection 143B. Then, the first groove 223A of the tab 220 is locked to the first locking protrusion 143A, and at the same time, the second groove 223B is locked to the second locking protrusion 143B. In this way, the stylus pen 200 is locked to the main body 100 of the tablet computer 10.

  The tab 220 of the stylus pen 200 passes between the first locking protrusion 143A and the second locking protrusion 143B, and the first groove 223A and the first locking protrusion 143A are locked, and at the same time, the second At the moment when the groove 223B and the second locking protrusion 143B are locked, a click sound is generated by the contact that occurs between the locking protrusion and the groove. With this click sound, the user can recognize that the stylus pen 200 has been reliably accommodated in the stylus pen accommodating portion PS of the tablet computer 10.

  At this time, the outer edge 222 of the tab 220 of the stylus pen 200 protrudes from the slot 141 of the main body 100 of the tablet computer 10 to the outside (left side), and the user hooks the outer edge 222 with his / her finger and pulls it upward. Accordingly, the engagement between the grooves 223A and 223B of the tab 220 and the locking protrusions 143A and 143B of the slot 141 of the main body 100 can be released, and the stylus pen 200 can be pulled off from the main body 100 of the tablet computer 10.

  As described above, in the tablet computer 10 of the present embodiment, the stylus pen housing part PS for housing the stylus pen 200 and the opening 140 for inserting the stylus pen are formed in the main body, and the opening The first locking projections 143A and the second locking projections 143B protruding toward the stylus pen housing portion PS are formed in the vicinity of the stylus pens, and the stylus 200 corresponds to the locking projections described above. By providing the tab 220 having the first groove 223A and the second groove 223B, the above two locking protrusions can be provided without providing an elastic member or the like that requires the formation of a cutting hole or the like inside the tablet computer 10. The stylus pen 200 can be housed and locked in the stylus pen housing portion PS by the mutual locking of the grooves.

  In addition, since a cut hole or the like is not formed, even when moisture or the like enters the stylus pen housing part PS from the opening 140, it prevents the moisture from entering the housing space SS and soiling the touch screen 130. Is possible. In addition, since it is not necessary to form a cut-off hole when manufacturing the front housing 110, the rear housing 120, and the separator 150, the structure of the mold at the time of resin molding can be further simplified, and the manufacturing cost can be reduced. It can also be suppressed.

  In the above embodiment, the example in which the stylus pen housing part PS is formed in the vertical direction on the left side of the main body 100 and the opening 140 is formed in the upper surfaces 114 and 121 has been described. However, the present invention is limited to the above embodiment. Alternatively, the stylus pen housing part PS may be provided in the vertical direction on the right side of the main body, or may be provided in the horizontal direction at the upper part or the lower part. In that case, the opening 140 may be formed at a position corresponding to the stylus pen housing part PS.

  Further, in the above embodiment, the positions of the first groove 223A provided on the first surface 221A of the tab 220 of the stylus pen 200 and the second groove 223B provided on the second surface 221B are the first positions. Although the description has been given of the case where the locking projections 143A and the second locking projections 143B are at positions shifted from each other, the present invention is not limited to the above, and in addition to the grooves, the first surface 221A Alternatively, a groove may be formed at a position opposite to the second groove 223B, and a groove may be formed at a position opposite to the first groove 223A on the second surface 221B. By doing so, since the position of the groove is the same on the first surface 221A and the second surface 221B of the tab 220, it is possible to improve the aesthetic appearance. However, in this case, when the tab 220 is inserted between the first locking projection 143A and the second locking projection 143B, a click sound is generated twice until the tab 220 is completely locked. For this reason, there is a possibility that the user erroneously determines that the locking state is complete when a single click sound is generated. Therefore, it is desirable that one groove is formed on each surface as described in the above embodiment.

DESCRIPTION OF SYMBOLS 10 Tablet computer 100 Main body 110 Front housing 111 Front surface 112 Opening 113 Touch screen 114 Upper surface 115 Left side surface 116 Bottom surface 117 Right side surface 120 Rear housing 121 Upper surface 122 Left side surface 123 Bottom surface 124 Right side surface 125 Rear surface 130 Stand 131 Housing attachment portion 132 Projection Part 140 Opening 140A First recess 140A
140B Second recess 140B
141 slot 141A first half slot 141B second half slot 142A first rib 142B second rib 143A first locking projection 143B second locking projection 150 separator 151 upper surface 152 left side 153 bottom 154 right side 155 Back surface 156 Extension portion 157 Left wall surface 200 Stylus pen 210 Pen body 211 Pointer 212 End portion opposite to the pointer 213 Annular groove 213
220 tab 221A first surface 221B second surface 222 outer edge 223A first groove 223B second groove

Claims (4)

A portable electronic terminal device including a stylus pen housing portion that detachably houses a stylus pen,
The stylus pen housing portion is directed toward the inside of the stylus pen housing space from a stylus pen housing space, a first projection projecting toward the inside of the stylus pen housing space, and a position obliquely opposite to the first projection. A locking portion having a second protrusion protruding in
The stylus pen includes a pen body and a tabular tab that protrudes radially outward from a side surface along a central axis of the pen body, and the first surface of the tab is engaged with the first protrusion. A portable electronic terminal device comprising: a first groove to be joined; and the second groove on the second surface of the tab at a position corresponding to the second protrusion.   The thickness of the tab is larger than the virtual distance between the protrusions when the first protrusion and the second protrusion are directly opposed, and is shorter than the shortest distance between the first protrusion and the second protrusion. The portable electronic terminal device according to claim 1, wherein the portable electronic terminal device is smaller.   The portable electronic terminal device according to claim 1, wherein the first protrusion and the second protrusion have an asymmetric shape. The stylus pen accommodating portion has a slot-shaped opening around the locking portion, and when the stylus pen is accommodated in the stylus pen accommodating portion, a part of the tab is formed from the opening. The portable electronic terminal device according to claim 1, wherein the portable electronic terminal device protrudes outward.

Images