JP2012015141A - Cover opening/closing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover opening/closing mechanism which allows a cover to be easily opened/closed with a single mechanism when an opening of a housing is opened/closed by a cover, and which facilitates a process to attach the cover to the housing.SOLUTION: A cover 103 includes: a cover body 104 covering an opening 102; and elastically deformable, long plate-like support bodies 105 arranged so as to vertically stand on a rear face of the cover body 104. Insertion holes 107 into which the support bodies 105 are inserted are formed in the vicinity of the opening 102. Each of the insertion holes 107 includes: a protrusion 109 arranged so as to protrude from an inner face of the insertion hole 107; and a recess 110 arranged at a position facing the protrusion 109 so as to retract from the inner face of the insertion hole 107. Each of the support bodies 105 has a guide groove 108 which is formed to extend in a longitudinal direction of the support body 105 and engages with the protrusion 109. A tip portion of the support body 105 is pushed into the insertion hole 107 to be elastically deformed so that the protrusion 109 engages with the guide groove 108, thereby attaching the cover body 104 in a openable manner.

Description

  The present invention relates to a cover opening / closing mechanism that opens and closes an opening of a housing with a cover, and more particularly to a cover opening / closing mechanism suitable for application to an electronic device that connects an external device to a connector inside a housing through the opening. .

  In recent years, various electronic devices using memory cards have become widespread. This type of electronic device is capable of reproducing data such as audio and video stored in a memory card. For this reason, an opening for inserting a memory card is formed in the front surface of the housing of the electronic device, and a connector is disposed in the opening, so that the memory card can be inserted into the opening and attached to the electronic device. In addition, the electronic device is provided with a cover that opens and closes an opening to prevent dust from entering and preventing damage to the connector. Cellular phones, portable information terminal devices, digital cameras, and the like are typical examples of such electronic devices.

  As a conventional cover opening / closing mechanism, for example, the one shown in the following Patent Document 1 (Japanese Patent Laid-Open No. 2002-134942) has been proposed. This conventional cover opening / closing mechanism is applied to a mobile phone to which an SD memory card, which is a kind of memory card, is mounted. Specifically, an SD card slot serving as an opening is formed on the side surface of the main body of the mobile phone, and the SD card slot is equipped with a cover that can be rotated between a closed position or an open position. Prevents dust from entering the slot.

  A rotating shaft portion constituting a hinge is integrally formed at the end portion of the cover. On the other hand, a groove for locking the rotating shaft and a camshaft unit are arranged on the main body side. The camshaft unit has a cam body and an elastic body, and the cover is forcibly shifted to the open state and held in the open state, and the cover is forcibly shifted to the closed state and held in the closed state. It has become so.

  Therefore, according to the prior art disclosed in Patent Document 1, the SD card slot can be reliably closed with the cover while the SD card is accommodated in the SD card accommodating portion, and dust can be prevented from entering. Further, when the SD card is taken out from the SD card accommodating portion or accommodated, the cover is securely held in the open state, so that the SD card can be easily accommodated and removed through the SD card slot. However, the cover opening / closing structure having such a structure is complicated, has a large number of parts, and is disadvantageous in terms of cost. In addition, there are problems such as troublesome work during assembly.

  Therefore, for example, a conventional technique shown in Patent Document 2 (Japanese Patent Laid-Open No. 2009-290745) below can be considered. In this prior art, an opening is provided on a side surface of a casing of a mobile phone, and a connector for connecting to an external device is disposed behind the opening. The opening is covered with a synthetic resin cover formed in the shape of a band plate in order to protect the connector when connection with an external device is not performed. Therefore, around the opening part of the housing, in order to allow the opening to be opened and closed by rotating the cover part at one end thereof to accommodate the band plate-like cover part when covering the opening, A cylindrical shaft portion provided in the cover and a composite hole in which a circular hole into which a locking portion arranged at the tip of the shaft portion is inserted and a square hole are combined are formed.

  The cover is made of a flexible synthetic resin, rubber, or the like, and is a strip-shaped cover part for covering the opening, and a composite hole provided on one end side of the cover part and formed around the opening of the housing It is provided with a cylindrical shaft portion for rotating the cover portion on one end side thereof by being inserted into the shaft portion. At the tip of the shaft portion, there is provided a locking portion having a function of preventing the cover from being detached from the housing by locking the periphery of the composite hole on the rear surface side of the housing after the shaft portion penetrates the composite hole. Yes.

  The locking portion has a thickness in which the axial cross section is smaller than the diameter of the shaft portion and a width larger than the diameter of the shaft portion at the tip of the cylindrical shaft portion, and the opening angle is an angle smaller than 180 degrees. The cross section in the axial direction protruding from the center of the shaft portion is formed in a “<” shape, and is configured by a plate-like member formed in a wedge shape whose cross section decreases toward the tip in the axial direction. . A groove is formed between the plate-like members.

  Therefore, when the cover is assembled into the concave portion of the housing, if the leading end of the locking portion is inserted into the composite hole and pushed in, a plate-like part of the locking portion made of a flexible material is formed in the composite hole. It is elastically deformed along the square hole and is inserted while its opening angle is expanded to 180 degrees. After passing through the composite hole, the pressing force from the case-side square hole against the side surface of the cover-side system stop is released, so the plate-like member of the locking part returns to the original “<” shape. .

  Thereafter, when a force is applied in a direction in which the cover is removed from the housing, the engaging surface on the side joined to the shaft portion and the periphery of the composite hole on the rear surface of the housing are caught. In this case, since the force applied to the surface of the locking portion is applied as an axial force to the base portion joined to the columnar shaft portion, it is difficult to deform along the square hole on the housing side. For this reason, the cover once fitted in the casing cannot be easily removed from the casing.

  According to the cover opening / closing mechanism disclosed in Patent Document 2, when the cover is assembled into the housing, it is only necessary to insert the tip of the locking portion into the composite hole, so that the assembling work is simplified. Therefore, the problem of the prior art disclosed in Patent Document 1 can be solved.

  Further, according to the cover opening / closing mechanism of Patent Document 2, the cover portion can be accommodated in the recess of the housing to close the opening. On the other hand, when connecting an external device to the connector in the opening, after pulling out one end of the cover part housed in the recess with a finger or the like, the cylindrical shaft part extends along the composite hole, and the cover side locking part After the surface is raised until it comes into contact with the peripheral portion of the composite hole on the rear surface of the housing, the cover is rotated around the cylindrical shaft portion to open the opening.

JP 2002-134942 A (paragraphs “0012” to “0016”, paragraph “0 018”) JP 2009-290745 A (paragraph “0024” to paragraph “0031”, FIG. 1)

  However, in the prior art disclosed in Patent Document 2, a cover opening / closing mechanism that can be easily assembled can be provided. However, an operation procedure in which opening / closing of the cover is moved in front of the opening and rotated in front of the opening is performed. There is a problem that the operation is troublesome. Further, when opening the opening, the cover has to be pivoted and rotated with respect to the housing, and thus there is a problem that a wide space is required around the opening.

  Therefore, in the prior art, technologies that the cover opening / closing operation is easy and that the operation of incorporating the cover into the housing is simple exist, for example, as shown in Patent Documents 1 and 2, respectively. However, there is a problem that it cannot be obtained by a single mechanism.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cover opening / closing mechanism that is easy to open and close the cover and that is easy to incorporate the cover into the housing. To do.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
A cover opening and closing mechanism that opens and closes the opening in the housing with a cover,
The cover includes a cover main body that covers the opening and an elastically deformable support provided on the back surface of the cover main body, and the housing that is close to the opening is inserted through the support. A hole is formed, and the insertion hole includes a protrusion provided to protrude from the inner surface of the insertion hole, and a retreating part that retreats from the inner surface of the insertion hole at a position facing the protrusion. A guide groove that extends in the longitudinal direction of the support and engages with the protrusion is provided.

  Further, the invention of the cover opening / closing mechanism according to claim 2 of the present application is the cover opening / closing mechanism according to claim 1, wherein the support body is formed by being bent so that the cover body is tilted upward. It is characterized by comprising a music part.

  Further, in the invention according to claim 3 of the present application, in the cover opening / closing mechanism according to claim 1 or 2, the support body has a tip portion substantially equal to the length of the vertical side of the insertion hole. Is a thickness (for example, thickness a1 in the following embodiment), and the portion excluding the tip portion has a thickness smaller than the length of the vertical side (for example, thickness a2 in the following embodiment). It is formed.

  In the invention according to Claim 4 of the present application, in the cover opening / closing mechanism according to any one of Claims 1 to 3, the projecting portion includes an inclined surface at a position facing the inlet side of the insertion hole. It is characterized by.

  The stand device of the present invention has the following excellent effects.

  That is, in the invention according to claim 1, a support is provided on the back surface of the cover main body that covers the opening of the housing, and this support is elastically deformable. On the other hand, an insertion hole through which the support body is inserted is formed in the casing close to the opening, a protrusion is provided on the inner surface of the insertion hole, and a retreating part is provided at a position facing the protrusion. The support is provided with a guide groove that extends in the longitudinal direction and engages the protrusion.

  According to such a configuration, at the time of assembling, if the tip of the support is pushed into the insertion hole strongly, the tip of the support is elastically deformed toward the retracted portion, and when further pushed in, it projects into the engaging guide groove. The parts engage. In this engaged state, the elastic deformation of the support returns to the original state, so that the support does not come out of the insertion hole. Therefore, the cover body is attached to the housing so that the opening can be opened and closed. On the other hand, the cover can close the opening by pressing the cover main body toward the housing, and can open the opening by pulling the cover main body forward. The cover main body is positioned so as to protrude greatly forward of the housing by the support.

  Therefore, the cover main body can be incorporated into the housing by a simple pushing operation. The built-in cover body can be opened and closed simply by moving it back and forth with respect to the housing. As a result, it is possible to provide a cover opening / closing mechanism that can be easily assembled and that can be easily opened and closed.

  In the invention according to claim 2, in the cover opening / closing mechanism according to claim 1, the support body is provided with a bent portion that tilts the cover body upward.

  According to such a configuration, when the cover is open, the cover main body is positioned so as to be biased upward in front of the opening by the bent portion of the support, so that the opening is opened by pulling the cover main body forward. be able to. Therefore, the cover main body is positioned so as to protrude greatly to the front of the housing by the support.

  Therefore, according to the first and second aspects of the invention, a cover opening / closing mechanism having the following advantages can be obtained by a single mechanism. First, since the assembling work can be achieved by simply pushing the cover body, workability is good. Second, the opening / closing operation of the opening can be achieved by a simple operation of moving the cover body back and forth with respect to the housing. Third, the external device can be easily attached and detached because the cover body protrudes in front of the opening and is positioned above the opening when the opening is open. Can do. Fourthly, since the long plate-like support body uses a space portion in which various components are not arranged when entering the housing, the support plate is made of a long one so that the stroke of the back-and-forth operation of the cover body can be increased. Can be bigger.

  In the invention according to claim 3, in the cover opening and closing mechanism according to claim 1 or 2, the thickness of the support body is large at the tip portion and small at the portion excluding the tip portion. Therefore, when the cover body is pulled out so as to open the opening, the distal end portion of the support body is inserted into the insertion hole in a state where there is no backlash in the vertical direction. Accordingly, the cover body does not hang downward and is not positioned in front of the opening, so that the external device can be easily attached and detached. On the other hand, when the support is moved in the insertion hole for opening and closing by the cover, a portion with a small thickness of the support is inserted, so that the opening and closing operation can be performed smoothly.

  According to a fourth aspect of the present invention, in the cover opening / closing mechanism according to any one of the first to third aspects, the protruding portion is provided with an inclined surface at a position toward the insertion hole inlet side.

  According to such a configuration, when the cover opening / closing mechanism is assembled, when the support body is pushed into the insertion hole, the support body that is in contact with the projection portion passes through the projection section along the inclined surface. It is easy to reach the groove.

It is a front view which shows the electronic device to which the cover opening / closing mechanism based on one Example of this invention is applied. It is a perspective view which shows the state which opened the opening of the cover opening / closing mechanism in FIG. It is a perspective view which expands and shows the front-end | tip part and insertion hole part of the support body in FIG. 2 seeing from the back side of a housing | casing. It is explanatory drawing which expands and shows the front-end | tip part and cut | disconnected insertion hole part of the support body in FIG. 2, Comprising: The insertion hole part is cut | disconnected and shown. It is a perspective view which shows the cover in FIG. It is the perspective view which looked at the front-end | tip part of the support body in FIG. 3 from the downward direction. It is explanatory drawing which shows the first procedure about the assembly of the cover opening-and-closing mechanism in one Example of this invention, Fig.7 (a) shows the state seen from the side when insertion of a support body is started in the insertion hole. FIG. 7 (b) shows a state viewed from the rear when the insertion of the support body into the insertion hole is started. It is explanatory drawing which shows the state in the middle about the assembly of the cover opening-and-closing mechanism in one Example of this invention, Fig.8 (a) shows the state seen from the side when inserting a support body into the insertion hole to the middle. FIG. 8B shows a state viewed from the rear when the support is inserted partway through the insertion hole. FIG. 9A is an explanatory view showing a state of completion of the assembly of the cover opening / closing mechanism in one embodiment of the present invention, and FIG. 9A is a side view of the state of insertion into the insertion hole of the support at the end of the assembly. FIG. 9B shows a state in which the support is inserted into the insertion hole at the end of assembly when viewed from the rear.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiment shown below exemplifies a cover opening / closing mechanism for embodying the technical idea of the present invention, and is not intended to specify the present invention as this cover opening / closing mechanism. The present invention is equally applicable to cover opening / closing mechanisms of other embodiments included in the claims.

  FIG. 1 is a front view showing an electronic apparatus to which a cover opening / closing mechanism according to an embodiment of the present invention is applied, and FIG. 2 is a perspective view showing a state where an opening of the cover opening / closing mechanism in FIG. 1 is opened.

  As shown in FIG. 1, the cover opening / closing mechanism 10 according to the present embodiment has, for example, a navigation function and is provided on a front surface 201 of an in-vehicle electronic device 20 that can reproduce various data such as audio signals and video signals. Is provided. Further, the front surface 201 has a display 202, an operation surface 203 provided near the right side of the front surface 201 for navigation operation, audio, video signal reproduction, and the like, and a front surface 201 near the upper side. The horizontally long disk insertion opening 204 and an external device mounting opening 205 into which an external device such as a USB memory, which is an external device provided below the operation surface 203, is provided. Here, the cover opening / closing mechanism 10 is disposed above the operation surface 203, that is, at the upper right corner of the front surface 201.

  As described above, the cover opening / closing mechanism 10, the display 201, the operation surface 203, and the like are arranged in the housing 206 of the front surface 201 in consideration of ease of operation, effective use of the occupied area, and the like.

  The external device mounting opening 205 has a cover for opening and closing the opening.

  As shown in FIG. 2, the cover opening / closing mechanism 10 is formed in a horizontally long shape for inserting a rectangular recessed portion 101 formed in a horizontally long shape in a housing 206 of the electronic device 20 and a memory card 30 formed in the recessed portion 101. A formed opening 102 and a cover 103 for opening and closing the opening 102 are provided. The cover 103 includes a rectangular cover body 104 that is housed in the recess 101 and covers the opening 102, and a pair of long plate-like supports 105 that are provided to stand near the upper side of the back surface of the cover body 104. . A notch 106 is formed on the lower side of the cover main body 104 for hooking a nail when the user removes the cover 103.

  The support 105 is made of an elastic material and is elastically deformable. Further, a pair of insertion holes 107 formed in a horizontally long rectangular shape through which the support 105 is inserted are provided in the housing 206 close to the upper side of the opening 102 in the recess 101. A guide groove 108 that engages with a protrusion 109 described later is formed in the support 105 so as to extend in the longitudinal direction of the support 105.

  3 is a perspective view of the front end portion and the insertion hole 107 portion of the support body 105 in FIG. 2 as viewed from the back side of the housing 206, and FIG. 4 is an insertion view of the support body 105 in FIG. FIG. 5 is a perspective view showing the cover 103 in FIG. 2, and FIG. 6 is a perspective view of the front end portion of the support 105 in FIG. 3 as viewed from below.

  The insertion hole 107 formed in a horizontally long rectangle has a vertical side length A and a horizontal side length B. The support body 105 is formed with a thickness a1 having a tip portion having a value substantially equal to the length A of the side in the vertical direction, and a portion excluding the tip portion having a thickness a2 having a value smaller than the length A of the side in the vertical direction. Is formed. The support 105 is formed with a width b slightly smaller than the lateral length B. In other words, the support body 105 is formed with a thickness a1 in which the tip portion is inserted into the insertion hole 107 substantially equal to the length A of the vertical side of the insertion hole 107, and the portion excluding the tip portion is the length of the vertical side. It is formed with a thickness a2 having a small value with respect to the length A, the tip portion is inserted into the insertion hole 107 in close contact, and the portions other than the tip portion are inserted through the insertion hole 107 with a gap in the thickness direction. . (See FIG. 3).

  The insertion hole 107 includes a protruding portion 109 that is formed and protrudes in the center of the lower inner surface thereof, and a retreating portion 110 that is recessed from the upper inner surface of the insertion hole 107 at a position facing the protruding portion 109. Yes. The protrusion 109 has an inclined surface 111 formed at a position facing the inlet side of the insertion hole 107. Here, the retreating part 110 is formed by partially notching the upper inner surface of the insertion hole 107. Further, the distance C between the tip of the protrusion 109 and the upper inner surface of the insertion hole 107 is set to a value smaller than the thickness a1 of the tip of the support plate 105 (see FIG. 4).

  A bent portion 112 is formed at an intermediate portion of the support 105 so that the cover main body 103 is positioned slightly tilted upward. The front end portion of the support 105 is formed with a guide recess 113 having one end opened to the front end side on the lower surface and the other end connected to a position approaching the end of the guide groove 108. The protrusion 109 is engaged with the guide recess 113. Between the guide groove 108 and the guide recess 113 is a bulge 114 that bulges up to the surface of the support 105 with respect to the guide recess 113 (see FIG. 6).

  In addition, a notch surface 115 cut from the tip to the guide groove 108 is formed on the surface opposite to the guide recess 113 to make it thin (see FIG. 5).

  Next, the assembly of the cover opening / closing mechanism 10 of the above-described embodiment will be described based on the explanatory diagrams of FIGS. This assembly is to attach the cover 103 to the housing 206 when the electronic apparatus 10 is manufactured.

  First, as shown in FIGS. 7A and 7B, the tip of the support 105 is pushed into the insertion hole 107 as an initial procedure. The leading end portion enters the insertion hole 107 with the protrusion 109 engaged with the guide recess 113. When the protruding portion 109 reaches the bulging portion 114, the distance C between the tip of the protruding portion 109 and the upper inner surface of the insertion hole 107 is smaller than the thickness a1 of the support 105, so the protruding portion 109 is bulged. 114 abuts.

  When the cover main body 103 is further pushed in from this state, the support body 105 is moved so that the bulging portion 114 rides along the inclined surface 111 of the protruding portion 109 as shown in FIGS. Elastically deformed. This elastic deformation is easily performed because the upper surface portion of the support 105 is opened by the retreating portion 110. Further, the front end portion of the support 105 is easily deformed at the thin portion formed by the guide recess 113 and the notch surface 115. Therefore, the bulging portion 114 passes through the protruding portion 109 smoothly.

  As shown in FIGS. 9A and 9B, when the bulging portion 114 passes through the protruding portion 109, the protruding portion 109 engages with the guide groove 108. By this engagement, the deformed state of the support body 105 is released and returned to the flat state again. Thus, when the shape of the support body 105 is restored, even if an attempt is made to pull out the support body 105 from the insertion hole 107, the bulging portion 114 comes into contact with the protruding portion 109 and the support body 105 is extracted from the insertion hole 107. Make it impossible.

  The protruding portion 109 may be formed in a hook shape. By thus forming the hook shape, the bulging portion 114 can be reliably locked and the support 105 can be prevented from being inadvertently pulled out from the insertion hole 107.

  The opening / closing operation of the opening 102 by the cover 103 of the cover opening / closing mechanism 10 in the embodiment described above is as follows.

  Usually, the opening 102 is closed by the cover main body 104. In this state, the cover main body 104 is housed in the recess 101 (see FIG. 1).

  When opening the cover 103, the cover body 104 is pulled out by hooking a nail or the like on the notch 106. When the cover body 104 is pulled out, the support body 105 is largely pulled forward until the protruding portion 109 reaches the end of the guide groove 108. Therefore, the cover main body 104 is moved to a position away from the front of the opening 102 (see FIG. 2). On the other hand, in this movement, since the support 105 has a small thickness a2 portion inserted through the insertion hole 107, a large force is not required for pulling out.

  In the state after the cover main body 104 is pulled out largely, the support body 105 has a large value of a tip portion with a thickness a1 in the insertion hole 107, so that there is no backlash in the vertical direction. Therefore, the cover body 104 does not hang downward. Further, the cover main body 104 is positioned upward by the bent portion 112.

  Therefore, the memory card 30 can be inserted into the opened opening 102 from the front and connected to the connector inside the housing 206. On the other hand, when the attached memory card 30 is taken out, the memory card 30 may be pulled out from the opened opening 102. At this time, the cover body 104 does not get in the way when the memory card 30 is inserted into and removed from the opening 102.

  When the opening 102 is closed again, it is achieved by pressing the cover body 104 in the direction of the opening 102 and placing it in the recess 101. At this time, the support 105 does not require a large force for pushing because the portion having a small thickness a2 passes through the insertion hole 107.

  When removing the cover 103, the support body 105 is forcibly deformed so that the bulging portion 114 is pushed upward from the back surface of the housing 206 by a driver, and the support body 105 is pulled in this state. As a result, the support body 105 can be extracted from the insertion hole 107 when the bulging portion 114 passes over the protruding portion 109.

  Therefore, according to the above-described embodiment of the present invention, when the cover opening / closing mechanism 10 is assembled, if the tip of the support body 105 is inserted into the insertion hole 107 with the cover body 104, the protrusion 109 is engaged with the guide recess 113. The support body 105 is guided and inserted through the insertion hole 107. When the support body 105 is further pushed in, the projecting portion 109 comes into contact with the bulging portion 114. At this time, the front end portion can be deformed toward the retracted portion 110 by pushing the support body 105 strongly. As a result, the protruding portion 109 passes over the bulging portion 114 and reaches the guide groove 108.

  On the other hand, the built-in cover opening / closing mechanism 10 can open and close the opening 102 simply by moving the cover main body 104 back and forth with respect to the housing 206. Then, the cover main body 104 can be positioned so as to protrude greatly forward of the housing 206 by the long plate-like support 105.

  As a result, the cover opening / closing mechanism 10 can be assembled by a simple operation of pushing the support 105 into the insertion hole 107, and opening / closing of the opening 102 only moves the cover body 104 back and forth with respect to the housing 206. Can be achieved with a simple operation.

  Further, in the electronic device 20 in which the opening 102 is disposed close to the upper side of the front surface 201, the insertion hole 107 is formed in the upper portion of the opening 102 in the housing 206, so that the support member inserted through the insertion hole 107. 105 can be positioned in an upper space in the electronic device 20 where various components are not arranged. Therefore, the support body 105 can be constituted by a long one that penetrates deeply into the housing 206, and the stroke of the back-and-forth operation of the cover body 104 can be increased. Therefore, when the opening 102 is opened, the cover opening / closing mechanism 10 causes the cover main body 104 to be positioned far away from the opening 102 to facilitate attachment and removal of an external device such as a memory card.

  Further, the support 105 has a bent portion 112 formed by being bent so that the cover main body 104 is inclined upward. Therefore, when the cover 103 has the opening 102 open, the cover main body 104 is in a position shifted upward from the front of the opening 102, so that the opening 102 is recognized from the front and the external device is securely attached and detached. Can be done.

  In the support 105, the thickness a1 of the tip portion is large and the thickness a2 of the portion excluding the tip portion is small. Therefore, when the cover main body 104 is pulled out so as to open the opening 102, the distal end portion of the support body 105 is inserted into the insertion hole 107 in a state where there is no backlash in the vertical direction. Accordingly, the cover main body 104 hangs downward and does not lie in front of the opening 102, so that the external device can be easily attached and detached. On the other hand, in the opening / closing operation by the cover 103, when the support 105 is moved in the insertion hole 107, the thin portion a2 of the support 105 is inserted, so that the opening / closing operation can be performed smoothly.

  Further, the support 105 includes a guide recess 113 from the tip side to a position approaching the end of the guide groove 108 on the surface facing the protrusion 109, and the protrusion 109 is inclined to a position toward the inlet side of the insertion hole 107. A surface 111 is provided. Therefore, when the cover opening / closing mechanism 10 is assembled, when the support body 105 is inserted into the insertion hole 107, the protrusion 109 engages with the guide recess 113 to guide the tip portion, so that the tip portion is inserted into the insertion hole 107. Can be performed reliably. When the insertion progresses and the projecting portion 109 abuts the bulging portion 114 at the end of the guide recess 113, the bulging portion 114 passes through the projecting portion 109 along the inclined surface 111 due to the deformation of the support 105. Therefore, the support body 105 can be pushed in with a small force, and the protrusion 109 can be brought into the guide groove 108.

  Further, since the support body 105 has a notch surface 115 formed on the surface opposite to the surface on which the guide recess 113 is formed and is thin, the tip portion is elastically deformed toward the retreating portion 110. easy. Therefore, when the bulging portion 114 passes through the protruding portion 109, the tip portion can be smoothly elastically deformed, and the protruding portion 109 can be brought into the guide groove 108 with a small pushing force.

  In addition, in the said Example, although the cover opening / closing mechanism 10 was provided in the front surface 201 of the electronic device 20, this invention is not limited to this but was provided in other surfaces, such as the side surface of the electronic device 20. It may be a thing.

  In the above embodiment, the support body 105 is provided near the upper side of the back surface of the cover body 104. However, the present invention is not limited to this, and the support body 105 is mounted on the lower side of the back surface of the cover body 104. It may be provided near the side or near the side.

  Moreover, in the said Example, although the cover opening / closing mechanism 10 is arrange | positioned in the upper side right corner of the front surface 201, this invention is not limited to this, You may arrange | position in other positions, such as a lower side.

  In the above embodiment, the opening 102 to which the cover opening / closing mechanism 10 is applied is for inserting the memory card 30. However, the present invention is not limited to this, and the memory or external device is not in the form of a card. The present invention can be applied to openings for various external devices that are inserted through connectors or the like connected to the cord.

10. Opening / closing mechanism 20 ... Electronic device 30 ... Memory card 101 ... Recess 102 ... Opening 103. .... Cover 104 ... Cover body 105 ... Support 106 ... Notch 107 ... Insertion hole 108 ... Guide groove 109 ... Protruding part 110 ... Retreating part 111 ... Inclined surface 112 ... bent portion 113 ... guide recess 114 ... bulging portion 115 ... notch surface 201 ... front surface 202 ... display 203 ... operation surface 204 ... Disk insertion slot 205... External device mounting opening 206... Housing

Claims (4)

A cover opening and closing mechanism that opens and closes the opening in the housing with a cover,
The cover includes a cover main body that covers the opening, and an elastically deformable support provided on the back surface of the cover main body,
The housing close to the opening is formed with an insertion hole through which the support is inserted,
The insertion hole includes a protrusion provided to protrude from the inner surface of the insertion hole, and a retreating part that is retracted from the inner surface of the insertion hole at a position facing the protrusion.
The cover opening and closing mechanism, wherein the support body is provided with a guide groove that extends in the longitudinal direction of the support body and engages with the protruding portion.   The cover opening / closing mechanism according to claim 1, wherein the support body includes a bent portion formed by being bent so that the cover body is tilted upward.   The support has a thickness at which the tip portion is inserted into the insertion hole substantially equal to the length of the vertical side of the insertion hole, and the portion excluding the tip portion has a small value relative to the length of the vertical side. The cover opening / closing mechanism according to claim 1, wherein the cover opening / closing mechanism is formed with a thickness of 5 mm.   The cover opening / closing mechanism according to any one of claims 1 to 3, wherein the protruding portion includes an inclined surface at a position facing the inlet side of the insertion hole.

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