JP2008004348A - Lid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lid capable of avoiding having a damage by an outer lid sliding against an inner lid at the time of closure of the lid. <P>SOLUTION: The lid comprises an inner lid 21 with a support axle 23 which is supported capable of rocking to a main body 10 having battery housing holes 14, an outer lid 22 which is capable of sliding against the outer surface of the inner lid 21 and has a locking projection 31 to lock detachably to a locking hole 13 provided in the main body 10, and can be opened and closed to the main body 10 together with the inner lid, and a return prevention mechanism (base part 22a, inner wall 12a, rounded parts 161a, 321a) which prevents that the outer lid 22 returns to the position before sliding against the inner lid 21 during the time the inner lid 21 and the outer lid 22 are opening and closing, in the state that the outer lid 22 is made to slide against the inner lid 21 and the locking projection 31 is detached from the locking hole 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lid attached to a power supply case of an electronic device.

  As a lid opening / closing structure of a power supply case equipped in an electronic device, an inner lid that is provided with a battery contact piece and is swingably supported by a main body of the power supply case via a support pin, and an inner lid so as to cover the inner lid On the other hand, a lid opening / closing structure having a so-called two-sheet lid provided with an outer lid slidably attached thereto is known. In such a lid opening / closing structure, for example, a locking projection is provided on one of the end of the power supply case and the end of the outer lid on the side away from the support pin, and the locking projection is inserted on the other side. A locking hole is provided.

  When opening and closing the lid for battery replacement, etc., once slide the outer lid in one direction (unlock direction) with respect to the inner lid, remove the locking protrusion from the locking hole, and then use the support pin as a fulcrum. The lid and the outer lid are rotated in the opening direction. After battery replacement, rotate the inner lid and outer lid in the closing direction using the support pin as a fulcrum, and after closing the power supply case, slide the outer lid to the inner lid in the other direction (locking direction) opposite to the previous time Then, the locking projection is inserted into the locking hole and locked.

In the lid opening / closing structure described above, in order to ensure the contact between the battery and the plus contact piece or the minus contact piece, the plus contact piece or the minus contact piece is made of a conductive material having a spring property and the lid is closed. In some cases, the positive contact piece or the negative contact piece is elastically deformed and pressed against the battery contact piece. For this reason, in the state which accommodated the battery and closed the lid, the force which always tries to open a lid acts. Therefore, in order to prevent the lid from being accidentally opened during use of the electronic device and the positive or negative contact piece being separated from the battery contact piece and interrupting the power supply, it must be placed outside the locking hole or locking projection. The power case body and outer lid are each provided with slide rails, etc. When the lid is closed, the outer lid slide rail engages (locks) with the main body slide rail, and the locking holes and locking projections At the same time, the closed state of the lid is maintained. When the outer lid is slid in one direction with respect to the inner lid, the lock hole and the lock projection are unlocked, and at the same time the lock between the slide rail of the outer lid and the slide rail of the main body is also released. (Patent Document 1).
JP-A-9-186469

  However, if the outer lid is accidentally slid in the locking direction with respect to the inner lid while closing the lid, the members such as the slide rail of the outer lid will hit the members such as the slide rail of the main body. If the lid closing operation was continued forcibly, the locking protrusions and slide rails could be damaged.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lid that prevents the outer lid from sliding with respect to the inner lid and being damaged when the lid is closed.

  The lid according to claim 1 of the present invention, which achieves the above object, includes an inner lid having a support portion rotatably supported by a main body having a receiving hole, and is slidable with respect to the inner lid. A lock part that is removably locked to the locked part of the main body, and an outer lid that can be opened and closed with respect to the main body together with the inner lid; and the lock part by sliding the outer lid once with respect to the inner lid An anti-return mechanism for preventing the outer lid from returning to the position before the slide with respect to the inner lid when the inner lid and the outer lid are opened and closed when the body is removed from the locked portion of the main body. And.

  Examples of the support portion include pins projecting on both sides of one end portion of the inner lid, or a bearing that supports a pin provided on the main body instead of the pin.

  The return prevention mechanism is such that the unlocking state in which the outer lid is slid with respect to the inner lid and the lock part is removed from the locked part of the main body, for example, the battery is opened by opening the lid, and after this is finished, It is maintained until the lid is closed again. Specific examples of the return prevention mechanism include the inner wall portion 12a formed in the concave portion 12 of the main body as shown in FIGS. 5 to 7, or the round portions 161a and 321a as cam mechanisms as shown in FIGS. It is not limited to this. For example, a mechanism is included in which once the lock is released, the outer lid is restrained from sliding with respect to the inner lid, and when the lid is closed again after the operation is finished, the mechanism is released. Alternatively, the surface where the inner lid and the outer lid slide may be roughened to increase the sliding of the outer lid with respect to the inner lid so that it does not easily return once unlocked.

  The lid according to claim 2, wherein the return prevention mechanism is formed in a concave portion of the main body into which an end portion on the support portion side of the outer lid enters and exits during opening and closing of the inner lid and the outer lid. It has an inner wall portion that follows the movement locus of the end portion.

  The lid according to claim 3, wherein the return prevention mechanism contacts the outer lid when the outer lid returns to the position before the slide with respect to the inner lid, and pushes back the outer lid. It has a formed cam mechanism.

  According to a fourth aspect of the present invention, there is provided a lid for preventing disassembly by connecting the outer lid and the inner lid to each other to prevent disassembly.

  The lid according to claim 5, wherein the disassembly prevention structure is a coupling structure in which the outer lid and the inner lid are engaged with each other by sliding, a stopper mechanism that limits a sliding amount of the outer lid with respect to the inner lid, and It includes protrusions that interfere with each other during assembly.

  Interfering with each other when the outer lid and the inner lid are assembled means, for example, that one of the protrusions rides on the other protrusion during assembly. After assembling, one projecting part descends from the other projecting part, and both projecting parts face each other.

  According to the lid of the present invention, since the return preventing mechanism is provided, it is possible to prevent the outer lid from sliding with respect to the inner lid when the lid is closed and being damaged.

  Hereinafter, embodiments of the lid of the present invention will be described with reference to FIGS. 1 to 11.

  FIG. 1 is a perspective view showing an embodiment of the lid of the present invention. As shown in FIG. 1, a lid portion 20 including an inner lid 21 and an outer lid 22 made of an electric insulating material is provided as a support portion integrally provided on the inner lid 21 in the main body 10 of a battery housing case made of an electric insulating material. It is attached via a pair of support shafts 23 so that it can be opened and closed. In FIG. 1, only the upper portion 10a of the main body 10 is shown, and the lower portion is omitted.

  The upper portion 10 a of the main body 10 is formed with a recess 11 for accommodating the lid portion 20. When the lid portion 20 is closed, the recess 10 is accommodated in the recess 11 and the lid portion 20 is removed from the main body 10. It does not protrude.

  On the bottom surface of the recess 11 located at one end of the main body 10 (upper left in FIG. 1), when the lid portion 20 is opened and closed, the end portion of the lid portion 20 on the support shaft 23 side (the outer lid 22 shown in FIG. A recess 12 into which the base end portion 22a) enters (escapes) is formed. A locking hole 13 as a locked portion for maintaining the closed state of the lid portion 20 is formed on the end surface of the recess 11 located at the other end of the main body 10 (lower right in FIG. 1). A plurality of battery housing holes 14 (two in FIG. 1) are formed on the bottom surface of the recess 11 between one end and the other end of the main body 10. Although not shown, a battery contact piece that contacts the positive terminal or the negative terminal of the battery is disposed in a lower portion of the main body 10 where the bottom of the battery housing hole 14 is located. In addition, bearing holes 15 that rotatably support the support shaft 23 are formed on the left and right side walls of the recess 11 between the recess 12 and the battery housing hole 14. Slide rails 16 a and 16 b projecting into the depression 11 are provided on the left and right side walls of the depression 11 at the site where the battery housing hole 14 is formed. The slide rails 16 a and 16 b serve to guide the outer lid 22 when the lid portion 20 is opened and closed and to maintain the closed state of the lid portion 20.

  The lid portion 20 includes the inner lid 21 and the outer lid 22 as described above, and the outer lid 22 is combined with the inner lid 21 so as to be slidable in the directions of arrows A and B shown in FIGS. The inner cover 21 is integrally formed with the above-described support shafts 23 on the left and right sides of the base end portion (the portion on the one end portion side of the main body 10). As shown in FIGS. 2 and 4, the support shaft 23 is formed such that a portion 23 a inserted into the bearing hole 15 of the main body 10 is smaller than the outer diameter of other portions. Further, a plus contact piece or a minus contact piece 24 made of a conductive material having a spring property is fixed to the inner lid 21. The plus contact piece or the minus contact piece 24 is in contact with the battery contact piece of the battery accommodated in the battery accommodation hole 14, and is elastically deformed when the lid portion 20 is closed and is brought into pressure contact with the battery contact piece. When the lid portion 20 is opened, the lid portion 20 is released and urged in the opening direction by its restoring elastic force.

  The outer lid 22 is formed with a cover 30 that covers the recess 11 of the main body 10 at the front end portion (the other end portion side of the main body 10), and is inserted into and removed from the locking hole 13 at a substantially central position on the inner surface. A lock projection 31 is formed as a lock portion to be inserted. Substantially L-shaped slide rails 32 a and 32 b are formed on the left and right outer portions of the outer lid 22. These slide rails 32 a and 32 b are hooked on the slide rails 16 a and 16 b of the main body 10 when the lid portion 20 in which the locking projection 31 is inserted into the locking hole 13 is closed (at the time of locking), and together with the locking projection 31. The closed state of the portion 20 is maintained, and the locking projection 31 is removed from the slide rails 16a and 16b when the outer lid 22 is removed (when the lock is released).

  Next, the return preventing mechanism, which is a characteristic part of the lid configured as described above, will be described in detail with reference to FIGS.

  As shown in FIG. 5 to FIG. 7, when the lid portion 20 is opened and closed by sliding the outer lid 22 in the direction of arrow A with respect to the inner lid 21 and removing the locking protrusion 31 from the locking hole 13, the main body 10 described above is used. The base end portion 22a of the outer lid 22 (a portion on the one end portion side of the main body 10) enters and exits from the concave portion 12. The inner wall portion 12a of the recess 12 facing the base end portion 22a is formed in a curved shape so as to follow the movement trajectory of the base end portion 22a. When the lid portion 20 is opened, the base end portion 22a of the outer lid 22 It opens along the inner wall part 12a with a slight gap from the part 12a. Further, when the lid portion 20 is closed from the state shown in FIG. 7 in which the lid portion 20 is almost completely opened, the base end portion 22a of the outer lid 22 is closed along the inner wall portion 12a with a slight gap from the inner wall portion 12a. Even if the outer lid 22 slides in the direction of the arrow B in the middle of opening and closing the lid portion 20 (even if it returns), the base end portion 22a hits the inner wall portion 12a and prevents further sliding of the outer lid 22. That is, the inner wall portion 12a functions as a return prevention mechanism that prevents the outer lid 22 from returning with the base end portion 22a (in cooperation with the base end portion 22a).

  8 and 9 show a return prevention mechanism different from the above-described return prevention mechanism (inner wall portion 12a). As shown in FIGS. 8 and 9, there is a possibility that the slide rail 16 a near the one end of the main body 10 and the slide rail 32 a near the base end of the outer lid 22 may come into contact with each other when the lid portion 20 is opened and closed. Rounded portions 161a and 321a having rounded corners are formed. These round portions 161a and 321a function as a cam mechanism that pushes back (returns) the other side when they come into contact with the other side. The rounded portion 161a of the slide rail 16a formed on the main body 10 has an outer lid 22 as the outer lid 22 slides in the arrow B direction with respect to the inner lid 21 in the process of opening and closing the lid portion 20, as shown by a two-dot chain line in FIG. When the rounded portion 321a of the slide rail 32a formed on the contact 22 comes into contact with the slide rail 32a, it is pushed out (returned back). Therefore, further sliding (retraction) of the outer lid 22 is prevented. That is, the rounded portion 161a functions as a return prevention mechanism that pushes back the outer lid 22 with the rounded portion 321a (in cooperation with the rounded portion 321a).

  The rounded portions 161a and 321a serving as the return preventing mechanism described above function in a state where the lid portion 20 is slightly opened or in a state where the lid portion 20 is almost closed. That is, it functions in the case as shown in FIG. 5, and does not function as a return prevention mechanism in the state shown in FIGS. 6 and 7 where the rounded portions 161a and 321a are not likely to contact each other.

  In this embodiment, in the state where the lid part 20 is slightly opened (the state immediately before the lid part 20 is closed), that is, in the state shown in FIGS. 5 and 8, the rounded portions 161 a and 321 a function as a return prevention mechanism. In a state where 20 is opened to some extent or substantially completely, that is, in the state shown in FIGS. 6 and 7, the inner wall portion 12a and the base end portion 22a function as a return preventing mechanism. In other words, either the inner wall portion 12a and the base end portion 22a or the round portions 161a and 321a function as a return prevention mechanism for the outer lid 22 in the process of fully closing and fully opening the lid portion 20.

  Therefore, when the outer lid 22 is inadvertently slid in the direction of arrow B while the lid portion 20 is opened and closed, and the lid portion 20 is closed in this state, the locking protrusion 31 hits the other end of the main body 10 and both or It does not lead to a situation in which either one is damaged, nor does it lead to a situation in which the slide rail 32a hits the slide rail 16a and both or one of them is damaged.

  Next, with reference to FIGS. 2 to 4 and FIGS. 10 to 12, the disassembly prevention structure which is another characteristic part of the lid configured as described above will be described in detail.

  As shown in FIGS. 2, 4, and the like, the inner lid 21 has a notch portion 25 that functions as a stopper mechanism for the outer lid 22 on both right and left outer surfaces, and a connecting rail that functions as a connecting structure that connects to the outer lid 22. 27 is integrally formed. In addition, an accommodation recess 33 (see FIG. 3) for accommodating the inner lid 21 is formed in the central portion of the outer lid 22. As shown in FIGS. 2 and 3, the housing recess 33 has a cutout portion 35 that abuts against the cutout portion 25 of the inner lid 21 described above on its left and right inner surfaces and functions as a stopper of the inner lid 21, and the inner lid 21. A connecting rail 37 that meshes with the connecting rail 27 and functions as a connecting structure is integrally formed.

  The above-described cutout portion 25 of the inner lid 21 limits the sliding amount of the outer lid 22 with respect to the inner lid 21 and prevents the outer lid 22 from being detached from the inner lid 21. That is, when the outer lid 22 slides in the direction of the arrow A shown in FIGS. 1 and 2 with respect to the inner lid 21 until the locking protrusion 31 comes out of the locking hole 13, it abuts the notch 35 of the outer lid 22, The sliding of the outer lid 22 is prevented (restricted), and the outer lid 22 is prevented from being detached from the inner lid 21. Further, the connecting rail 27 of the inner lid 21 described above meshes with the connecting rail 37 of the outer lid 22 to connect the inner lid 21 and the outer lid 22. That is, the inner lid 21 and the outer lid 22 are prevented from being separated and disassembled, for example, in the upper and lower directions in FIG. 2 due to the engagement of the connecting rail 27 and the connecting rail 37.

  In addition to this, as shown in FIG. 10, a projection 28 is integrally formed on the bottom surface of the inner lid 21 on the front end side, and as shown in FIG. 11, the front end side of the housing recess 33 of the outer lid 22 is formed. A protrusion 38 that interferes with the protrusion 28 is integrally formed on the bottom surface of the protrusion. As shown in FIG. 12A, these projections 28 and 38 interfere with each other when a force in the direction of arrow C shown in the figure is applied to fit the inner lid 21 in the accommodating recess 33 of the outer lid 22. (The projection 28 rides on the projection 38), and the front end of the inner lid 21 is slightly bent so as to be lifted with respect to the outer lid 22, but if the outer lid 22 is slid in the direction of arrow A shown in FIG. Due to the force of the lid 21 trying to restore the original shape, the protrusion 28 that has been riding on the protrusion 38 descends so that the protrusion 28 and the end faces 28a, 38a (see FIGS. 10 and 11) of the protrusion 38 face each other. Become. As a result, the inner lid 21 is incorporated into the housing recess 33 of the outer lid 22, and the inner lid 21 moves in the direction of arrow A shown in FIG. Is prevented from moving in the direction of arrow B shown in FIG. Moreover, as shown in FIG.12 (b), the connection rail 27 and the connection rail 37 will mutually mesh. As shown in FIG. 12C, the coupling rails 27 and 37 are engaged until the outer lid 22 is slid in the direction of arrow A shown in FIG. Until it comes out of the locking hole 13).

  According to the above-described disassembly prevention structure, the inner lid 21 and the outer lid 22 are connected to each other by the cutout portions 25 and 35, the connecting rails 27 and 37, and the protrusions 28 and 38 that are integrally formed with the inner lid 21 and the outer lid 22. Therefore, it is not necessary to use fastening parts such as screws and pins, and the cost can be reduced by reducing the number of parts. Further, it is not necessary to increase the thickness of the inner lid 21 and the outer lid 22 in order to hold fastening parts such as screws and pins, and the inner lid 21 and the outer lid 22 can be made thinner. It is possible to improve the space efficiency of the power supply portion.

  Further, after the inner lid 21 is housed in the housing recess 33 of the outer lid 22 and the inner lid 21 and the outer lid 22 are combined, the lid portion 20 itself is disassembled even if the support shaft 23 is damaged or dropped. The function as the lid portion 20 can be continued with respect to the main body 10 without doing so.

  Further, when the lid is assembled, the lid portion 20 as a single product before being assembled into the main body 10 is not disassembled into the inner lid 21 and the outer lid 22 during the assembling operation.

  The lid of the present invention is not limited to the embodiment described above. For example, the case where both the return prevention mechanism consisting of the inner wall part 12a and the base end part 22a and the return prevention mechanism consisting of the rounded parts 161a and 321a are shown, but only one of the return prevention mechanisms is adopted. May be.

  Moreover, although the case where the notch parts 25 and 35, the connection rails 27 and 37, and the protrusions 28 and 38 respectively formed in the inner lid 21 and the outer lid 22 are employed as the decomposition preventing structure is shown, the present invention is not limited to this. is not. In short, the disassembly prevention structure may be configured by using a structure integrally formed with the inner lid 21 and the outer lid 22 without using fastening members such as screws and pins.

  Of course, the above-described disassembly prevention structure can be applied to a lid other than the lid of the present invention provided with a return prevention mechanism.

It is a perspective view in the state where the lid which opened one embodiment of the lid of the present invention was opened. It is a perspective view of the cover part of the cover shown in FIG. It is a perspective view of the part of an outer cover among the cover parts of FIG. It is a perspective view of the part of an inner cover among the cover parts of FIG. It is explanatory drawing explaining the effect | action of one Embodiment of the return prevention mechanism which consists of a fragmentary sectional view which abbreviate | omitted and showed one part. It is explanatory drawing explaining the effect | action of one Embodiment of the return prevention mechanism which consists of a fragmentary sectional view which abbreviate | omitted and showed one part. It is explanatory drawing explaining the effect | action of one Embodiment of the return prevention mechanism which consists of a fragmentary sectional view which abbreviate | omitted and showed one part. It is explanatory drawing explaining the effect | action of other embodiment of a return prevention mechanism which consists of fragmentary sectional views. It is a partial expansion perspective view of the return prevention mechanism of FIG. It is the partial expansion perspective view which abbreviate | omitted partially which shows one Embodiment of the protrusion which comprises the inner lid and which comprises the decomposition | disassembly prevention structure. It is the partial expansion perspective view which abbreviate | omitted one part which shows one Embodiment of the protrusion which comprises the decomposition prevention structure formed in the outer cover. FIG. 12A is a partial sectional view for explaining the state of the inner lid and the outer lid when assembled, used, and opened / closed. FIG. 12A shows the assembled state, FIG. 12B shows the used state, and FIG. ) Indicates opening and closing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main body 12a Inner wall part 13 Lock hole 16a, 16b Slide rail 20 Lid part 21 Inner cover 22 Outer cover 22a Base end part 23 Support shaft 25, 35 Notch part 31 Locking protrusion 32a, 32b Slide rail 27, 37 Connection rail 28 38 Projection 161a, 321a Earl part

Claims (5)

An inner lid having a support portion rotatably supported by a main body having a receiving hole;
An outer lid that is slidable with respect to the inner lid and has a lock portion that is detachably locked to a locked portion of the main body, and that can be opened and closed with respect to the main body together with the inner lid;
During the opening and closing of the inner lid and the outer lid in a state where the outer lid is slid once with respect to the inner lid and the lock portion is removed from the locked portion of the main body, the outer lid is the inner lid. And a return prevention mechanism for preventing return to the position before the slide. The lid according to claim 1,
The return-preventing mechanism is an inner wall portion that follows a movement trajectory of the end portion, which is formed in a concave portion of the main body where the end portion on the support portion side of the outer lid enters and exits during opening and closing of the inner lid and the outer lid. A lid characterized by comprising: The lid according to claim 1 or 2,
The return prevention mechanism has a cam mechanism formed on the main body and the outer lid that comes into contact with the outer lid when the outer lid returns to the position before the slide with respect to the inner lid and pushes back the outer lid. Feature lid. The lid according to any one of claims 1 to 3,
A lid comprising a disassembly prevention structure for preventing disassembly by connecting the outer lid and the inner lid to each other. The lid according to claim 4,
The disassembly prevention structure includes a coupling structure that meshes with each other by sliding the outer lid and the inner lid, a stopper mechanism that limits a sliding amount of the outer lid with respect to the inner lid, and interferes with each other during assembly. A lid comprising a protrusion.

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