JP2014150217A - Case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case with a lid which can be opened, as required, for maintenance while suppressing access of an end user partially.SOLUTION: In a case including a housing having an aperture, and a lid having a plane covering the aperture plane of the housing, a fixing part for fixing at least one end of a string is provided on any one side of the housing or lid, and at least one of a winding part around which the string is wound, and a fixing part for fixing the other end of the string is provided on the other side of the housing or lid. Travel of the lid in a direction normal to the plane and a direction parallel with the plane is restricted to a predetermined range by means of the string.

Description

  The present invention relates to a case for storing an electronic device or the like.

  In order to prevent the door from tilting with respect to the guide rail when opening and closing the door, to smoothly open and close the door, and to avoid the need for external force to open or close the door, there are cross sections on both sides of one end of the door. A non-circular shaft is provided, and a guide hole and a wider rotation center hole are continuously provided in the guide rails arranged on both sides of the door so that the shaft cannot rotate in the guide hole. Patent Document 1 discloses an open / close storage mechanism which is configured to be rotatable in the inside, is joined by tensioning wires via pulleys on both sides in the moving direction of the shaft, and urges the door in one direction. .

JP-A-9-186468

  On the other hand, in an electronic device or the like housed in a case, it should be possible to access an end user for a part of the electronic device or the like, but there is a need to suppress an end user's access to another part.

  However, in the conventional opening / closing storage mechanism, although the inclination of the door is restricted by the wire, it cannot be used for restricting the opening / closing range, and its application is limited.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a case having a lid that can be opened for maintenance as needed while partially suppressing access by an end user. One of them.

  An example of the present invention is a case including a housing having an opening and a lid having a surface covering the opening of the housing, and at least one end of the string is provided on one side of the housing or the lid. A fixing portion for fixing is provided, and at least one of a winding portion around which the string is wound on the other side of the casing or the lid or a fixing portion for fixing the other end portion of the string is provided, and the lid is flat. The amount of movement in the normal line direction and the direction parallel to the plane is restricted to a predetermined range by the string.

  Here, a string may be detachable from the fixing portion. Moreover, the fixed part to which the string with the smallest tensile strength is fixed among the fixed parts may be capable of detaching the string. Further, the plurality of strings may have higher tensile strength as the movable range of the lid is larger.

  In these cases, at least one string may be conductive, and may further include a circuit unit that detects disconnection of the string by detecting conduction of the string.

  ADVANTAGE OF THE INVENTION According to this invention, the case provided with the lid | cover which can be opened for maintenance as needed can be provided, suppressing an end user's access partially.

It is a perspective view showing the example of the case which concerns on embodiment of this invention. It is a section explanatory view of a case concerning an embodiment of the invention. In embodiment of this invention, it is explanatory drawing showing the example of the winding condition of a string. It is explanatory drawing showing the change of the length of the path | route which a string winds in embodiment of this invention. In embodiment of this invention, it is explanatory drawing showing the example of the winding condition of a string. It is a perspective view showing the example of the case which concerns on another example of embodiment of this invention. It is a perspective view showing the example of the case which concerns on another example of embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. The case 1 of the present embodiment houses an electronic device 2 as illustrated in FIG. Here, the electronic device 2 includes a portion 2A (hereinafter referred to as an access permission unit) that should allow access by the end user, and a portion (hereinafter referred to as an access restriction unit) that restricts the access of the end user and should be accessible by the service staff. 2B).

  In one example of the present embodiment, the access permission unit 2A is disposed in a part of the width direction (X-axis direction) over the entire depth direction of the case 1 (Y-axis direction in FIG. 1A). Further, the access restriction unit 2B is arranged at a position adjacent to the access permission unit 2A in a part of the width direction (X-axis direction) over the entire depth direction of the case 1 (Y-axis direction in FIG. 1A). .

  The case 1 includes a case main body (housing) 10 having a depth sufficient to accommodate an electronic device, and a lid 20. Here, the case main body 10 has a substantially rectangular parallelepiped shape, the inside is a cavity, and an opening is formed in at least a part of a plane. In an example of the present embodiment, the opening extends in the depth direction, and in the width direction, the opening is wide enough to expose the entire width direction of the electronic device 2. In the following example, the side with the opening is described as a plane side for convenience of explanation. However, in the usage mode of the case 1, the opening side may be used sideways (that is, the side surface is opened). , The opening side may be down (that is, the bottom surface is opened).

  Further, in the present embodiment, an L-shaped groove 10P for locking the lid 20 is formed on the side surface in the width direction (Y-axis direction) of the case body 10.

The lid 20 has a flat surface portion 20A that covers the opening of the case main body portion 10 and a flange portion 20B that is bent downward from both edges in the width direction (Y-axis direction) of the flat surface portion 20A. The inner surface side of the flange portion 20B is arranged along the outer surface of both side surfaces in the width direction of the case main body portion 10 (so as to slide with respect to the outer surface) when the lid 20 is attached to the case main body portion 10. The Further, on the inner surface side of the flange portion 20B, a convex portion 20C is formed which is held in a position in contact with the groove 10P of the case main body portion 10 and in contact with the inner portion of the groove 10P. At the position where the convex portion 20C is locked to the groove 10P, the entire opening of the case main body portion 10 is covered with the flat portion 20A of the lid 20 (the position of the lid 20 at this time is hereinafter referred to as an initial position). ).
Specifically, FIG. 1B shows a cross-sectional view in which the lid 20 is broken along the plane including the convex portion 20C. In FIG. 1B, the case main body 10 is shown by a broken line for the sake of explanation.
Here, in the example of the present embodiment, the lid 20 is provided with a flat portion. However, it is not always necessary to provide the flat surface of the lid 20, and if the opening can be covered, the surface of the lid 20 is a curved surface (spherical surface or the like). It may be.

  Further, at least one fixing portion 31 that is a ring-shaped member is provided on one of the bottom surface side of the lid 20 and the bottom portion of the case main body portion 10. Further, at least one of a winding portion 32 or a fixing portion 31 that is also a ring-shaped member is provided on the bottom surface side of the lid 20 or the other bottom portion of the case main body portion 10.

  In the following description, for explanation, the direction parallel to the flat portion 20A of the lid 20 and the direction in which the lid 20 can move is defined as the positive X-axis direction, and the movement direction of the lid 20 at the initial position of the lid 20 is Let the opposite end be the position of X = 0. In addition, a normal direction to the flat portion 20A of the lid 20 is a Z-axis direction, and a direction in which the lid 20 is separated from the case main body portion 10 is a positive Z-axis direction.

  In the present embodiment, the case main body 10 and the lid 20 are connected to each other by at least one string 30. The string 30 regulates the movement of the lid 20 outside the movable range, with a part of the movable range of the lid 20 (range of relative movement with respect to the case body 10) as a movable range. The movable range (total movable range) of the lid 20 without these strings 30 is not restricted. Alternatively, the lid 20 may be separately connected by a chain or the like as a whole movable range regulating means. Here, the string is a thread, string, cable, chain, or the like formed of fiber, resin, metal, or the like.

  In an example of the present embodiment, a pair of strings 30a and 30b are used. Fixing portions 31a and 31b are provided in the vicinity of both the bottom surface of the case body 10 and both ends in the width direction (Y-axis direction) of the case. , D are provided.

  One end of the string 30a is fixed to the fixing portion 31a. The other end side of the string 30a is fixed to a fixing portion 31c provided on the case body 10 side. Similarly, one end of the string 30b is fixed to the fixing portion 31b, and the other end side is fixed to a fixing portion 31d provided on the case body 10 side (FIG. 2A). FIG. 2 is an explanatory side view of the lid 20 and the case main body 10 with the side surfaces in the width direction removed at the initial position. In FIG. 2, the electronic device 2 is omitted for illustration.

  Further, the length l of the strings 30a and 30b is at most from the distance r0 from the fixed portion 31a or the fixed portion 31b to the fixed portion 31c or the fixed portion 31d in a state where the lid 20 is locked to the case body 10 respectively. The flange portion 20B is made longer by the height h.

  According to this example, even if the lid 20 is removed from the case main body 10, the strings 30a and 30b restrict the liftable amount in the Z-axis direction up to the height h of the flange 20B. For this reason, the state in which the flange portion 20B of the lid 20 is engaged with the outer side surface of the case main body portion 10 is maintained, and movement in the Y-axis direction is also restricted. Further, since the distance r from the fixed portion 31a or the fixed portion 31b to the fixed portion 31c or the fixed portion 31d increases with the relative movement between the lid 20 and the case main body portion 10, this r becomes the length l of the string. When the lid 20 and the case main body 10 are relatively moved to the same position, they are restricted (FIG. 2B).

  Further, in this example, after the engagement between the lid 20 and the case main body 10 is released, the lid 20 is rotated around the fixing portion 31 provided on the lid 20 side (with the Y axis as the rotation axis), It may be possible to obtain an opening in the Z-axis direction up to an unintended size (FIG. 2C).

  When the rotation of the lid 20 with the Y axis as the rotation axis is to be limited, it can be arranged as illustrated in FIG. In the example of FIG. 3A, a pair of strings 30a and 30b are used, and a pair of fixing portions 31a and 31b and a fixing portion are provided near the bottom surface of the case body 10 and both ends in the width direction (Y-axis direction) of the case. 31c and d are provided. The fixed portion 31a and the fixed portion 31b (or the fixed portion 31c and the fixed portion 31d) are separated by a predetermined length in the X-axis direction.

  A pair of winding portions 32a and 32b and winding portions 32c and 32d are provided near the bottom surface of the lid 20 and in the vicinity of both ends in the width direction of the lid 20, respectively. Here, the winding portion 32a and the winding portion 32b (or the winding portion 32c and the winding portion 32d) are separated by a predetermined length in the X-axis direction. When the lid 20 is locked to the case body 10 (when in the initial position), the positions of the fixing portions 31a and 31b in the Y-axis direction and the positions of the winding portions 32a and 32b in the Y-axis direction are It is assumed that the positions of the fixing portions 31c and d in the Y-axis direction substantially coincide with the positions of the winding portions 32c and d in the Y-axis direction.

  Then, one end of the string 30a is fixed to the fixing portion 31a, the string 30a is passed through the winding portions 32a and 32b, and the other end is fixed to the fixing portion 32b. Similarly, one end of the string 30b is fixed to the fixing portion 31c, passed through the winding portions 32c and d, and the other end side is fixed to the fixing portion 32d provided on the case body 10 side.

  In this case, the length l of each of the strings 30a and 30b is set such that the distance r1 from the fixed portion 31a to the winding portion 32a in the state where the lid 20 is locked to the case main body 10 and the winding portion 32a. , B and the sum r0 = r1 + r2 + r3 of the distance r3 from the winding portion 32b to the fixed portion 31b are set to be longer by about twice the height h of the flange portion 20B.

  According to this example, even if the lid 20 is removed from the case body 10, the strings 30a and 30b can be lifted in the Z-axis direction (between the fixed portions 31a and b and the winding portions 32a and b and the fixed portions). 31c, d and the distance between the winding portions 32c, d) are all restricted to the height h of the flange portion 20B. For this reason, the state in which the flange portion 20B of the lid 20 is engaged with the outer side surface of the case main body portion 10 is maintained, and movement in the Y-axis direction is also restricted. Further, the relative distance between the lid 20 and the case body 10 in the direction parallel to the plane of the lid 20 (here, the X-axis direction), the distance from the fixing portion 31a to the winding portion 32a, and the winding portion 32a. , B and the sum r of the distance from the winding portion 32b to the fixed portion 31b increase, so that the lid 20 and the case main body 10 are relative to each other until the position where r is equal to the length l of the string. Is restricted when it is moved (FIG. 3B).

  In the present embodiment, the manner of winding the string 30 is not limited to the above examples. Specifically, in the example of FIG. 4 corresponding to the same configuration as in FIG. 3, one end of the string 30 a is fixed to the fixing portion 31. Further, the string 30a may be passed through the winding portions 32a and 32b in the reverse order of the example of FIG. 3, and the other end may be fixed to the fixing portion 32b. The same applies to the string 30b. In the example of FIG. 4, the strings 30 intersect in the route.

  Furthermore, although the example so far has described the example of using one string 30 in the width direction (Y-axis direction) near one end of the case, the present embodiment is not limited to this. For example, as illustrated in FIG. 5, the fixing portion 31 a is provided near one end of the case in the width direction (Y-axis direction) and near one end in the moving direction (X-axis direction), on the back side of the lid 20. While being provided, the winding portions 32a, 32b are disposed at positions of distances d1, d2,... From the fixed portion 31a toward the back side of the lid 20 and the other end. Further, corresponding to each of the winding portions 32a, b..., The fixing portion is located at a distance dl1, dl2... From the corresponding winding portion 32a, b. 31b, c... Are arranged (in this order on the X axis toward the other end of the lid 20).

  In addition, a plurality (hereinafter referred to as each) of the winding portions 32 corresponding to the winding portions 32a, b,... On the lid 20 side in the vicinity of the bottom side of the case body 10 and one end portion in the width direction (Y-axis direction) of the case. In this example, two winding portions 34a, b, c, d,... Are arranged (on the X axis, in this order toward the other end of the lid 20). Each winding portion 34 arranged on the bottom surface side of the case main body 10 is adjacent to the corresponding winding portion 32 when the lid 20 is locked to the case main body 10 (when in the initial position). 32 or the fixed portion 31a is arranged in a range not exceeding the position in the X-axis direction. Further, when the lid 20 is locked to the case main body 10 (when in the initial position), the positions of the fixing portion 31 and the winding portions 32 and 34 in the Y-axis direction substantially coincide with each other.

  In this example, strings 30a, b... Corresponding to the number obtained by subtracting 1 from the number n of the fixing portions 31 arranged on the lid 20 side (the number excluding the fixing portion 31a) are used. One end of each of these strings is fixed to the fixing portion 31a. The string 30a passes through the winding portion 32a on the lid 20 side, and passes through the winding portions 34b, a arranged on the bottom surface side of the case body 10 in this order, and the other end is fixed to the fixing portion 31b.

  Similarly, the string 30b passes through the winding portion 32b on the lid 20 side, passes through the winding portions 34d and 34c arranged on the bottom surface side of the case body 10 in this order, and the other end is fixed to the fixing portion 31c. Is done.

  According to this example, when an engineer wants to remove the lid 20 from the case body 10 as necessary, the fixing part 31a is accessed and the fixing part 31a itself or the strings 30a, b,. The lid 20 can be removed. That is, in an example of the present embodiment, the fixing portion 31a is a ring (such as a carabiner) provided with an openable / closable gate. When the string is attached to the fixing portion 31a, a ring is formed or attached to one end side of the string 30, the gate of the fixing portion 31a is opened, the ring on one end side of the string 30 is hooked, and the gate is closed. . When the string 30 is removed, the gate is opened and the string 30 is removed together with the ring.

  Further, the lengths of the strings 30a, b... May be determined as follows. That is, with respect to a certain string 30, when the lid 20 and the case main body 10 are in the initial position, the distance r 1 from the fixing portion 31 to the winding portion 32 corresponding to the string 30 and the correspondence from the winding portion 32. The distance r2 to the winding portion 34 to be wound, the distance between the plurality of winding portions 34 around which the string 30 is wound (the sum when there are three or more winding portions 34) r3, and the string 30 to the other side On the side close to the end, the sum of the distance r4 from the last winding portion 34 to the fixed portion 31 to which the other end is fixed is longer than the sum r = r1 + r2 + r3 + r4 by about twice the height h of the flange 20B. deep. However, this example of the present embodiment is not limited to this, and the length obtained by subtracting the corresponding r from the length l of a certain string 30 (here, referred to as the regulation length) is the length obtained by adding the height h of the flange 20B. It may be longer than this. Further, the regulation length may be different for each string 30.

  Here, at least one of the strings 30a, 30b,... May be different from the other strings 30 in tensile strength. Here, the tensile strength can be defined by a tensile force F when the string is broken by pulling both ends of the string.

  Since the case 1 of this example of the present embodiment is configured as described above, for example, the movable range of the lid 20 limited by the string 30a is larger than the movable range of the lid 20 limited by the string 30b. If the string 30a is not broken, the lid 20 can be lifted in the Z-axis direction and moved in the X-axis direction only within a movable range limited by the string 30a.

  Therefore, when the lid 20 is moved in the X-axis direction within a possible range limited by the string 30a in the electronic device 2 housed in the case body 10, a partial opening is formed along the X-axis direction. The Then, an access permission portion 2A that should allow the end user's access is arranged in a range in which work can be performed from this partial opening (for example, within the range of the length R1 from the position of the end portion of the lid 20 in the X-axis direction). . Further, in the electronic device 2, the access restriction unit 2 </ b> B that should be accessible to the engineer by restricting the access of the end user to a range in which work is difficult from the opening formed by opening the lid 20 only by the movable range R <b> 1. Arrange.

  That is, as long as the end user does not break the string 30a, the end user can only perform the work on the access permission portion 2A, while the engineer pulls the string 30a to break or removes the string 30a from the fixing portion 31a (each string In order to identify 30, the color of the string may be different, etc.), and not only the access permission unit 2A but also the access restriction unit 2B (only the movable range R2 restricted by the string 30b, the X axis By moving the lid 20 in the direction, it is possible to perform an operation in which an opening capable of performing an operation on the access restriction unit 2B is formed. Further, it is possible to confirm whether or not the end user has performed an operation that deviates from the scope of product warranty depending on whether or not the string 30a is broken.

  Further, in the description so far, one end of all the strings 30 is fixed to the fixing portion 31a, but the present embodiment is not limited to this. For example, at least a part of the string 30 may be fixed not to the fixing portion 31a but to the fixing portion 31 provided elsewhere. In this case, a part of the string 30 can be removed by accessing the fixing portion 31a.

  Further, a part of the string 30 fixed to the fixing portion 31a may be removable. Specifically, a ring (such as a carabiner) having an openable / closable gate may be attached to the end of a part of the strings 30 that can be attached / detached. When attaching, the gate of this ring is opened, hooked to the fixing portion 31a, and the gate is closed. When removing the string 30, the gate may be opened and removed.

  In this example, the engineer performs work by removing the removable string from the fixed portion 31a, for example, as necessary. In this case, unless the end user is informed that the string 30 is removable, the end user will not perform work outside the scope of the product warranty.

  Furthermore, in this Embodiment, the string 30 with the smallest tensile strength may be detachable. That is, if it is possible to remove the string after it has been pulled and broken and replace it with a new string, the engineer can easily replace the string after it has broken.

  The plurality of strings may have a lower tensile strength as the regulation length is smaller (the movable range is smaller). In this way, as the movable range of the lid 20 is increased, the tensile force necessary to break the string increases. For example, as a result of applying a force to break a string whose movable range is the jth largest, A string having the next largest movable range (j + 1st largest movable range) will not be accidentally broken together.

  Furthermore, in the present embodiment, at least one string has conductivity, and may further include a circuit unit that detects disconnection of the string by detecting conduction of the string. In this case, the circuit unit is electrically connected to both ends of the conductive string, and detects breakage of the string (loss of conductivity between both ends of the string). When this circuit portion detects the breakage of the string, it notifies that fact. Here, the notification method is not particularly limited, but is performed by sounding sound, turning on or blinking LEDs, or transmitting data to that effect to a personal computer connected via a communication line such as a network.

  When the string comes into contact with the circuit unit or the electronic device 2 in a slack state, the outer periphery of the string is formed of a non-conductor in order to prevent an unintended short circuit (when the string has conductivity) , Covering the periphery of the conductor).

  In order to prevent the string from becoming loose, at least a part of the fixing portion 31 may be a reel biased in the direction of winding the string.

  Furthermore, in the description so far, the lid 20 has been assumed to move in parallel within the plane parallel to the opening surface of the case body 10 (X-axis or Y-axis direction), but the present embodiment is not limited thereto. Absent. Specifically, the lid 20 may be rotatable with respect to the case body 10.

  Specifically, in an example of the present embodiment, as illustrated in FIG. 6A, the inner side of the bottom surface of the case main body 10 having a rectangular shape, not the vicinity of one end in the width direction (Y-axis direction) of the case. Winding portions 32 are provided in the vicinity of the four corners. Moreover, a flange is not provided in the edge part of the lid | cover 20, but a pair of fixing | fixed part 31 is provided in the bottom corner side four corner vicinity, respectively. Both ends of each string 30 are fixed in correspondence with each pair of fixing portions 31, and each string 30 is passed through a winding portion 32 at a corresponding position when the lid 20 is closed.

  In FIG. 6, for convenience of explanation, the string 30 is illustrated with a longer length, but the actual length of the string 30 is perpendicular to the Z axis when the lid 20 is lifted from the case body 10 in the Z axis direction. The length is such that it is lifted to the extent that it can rotate within the surface (the surface of the opening of the case body 10). Further, in this example, the access restricting portion 2B is disposed near the center of the bottom surface of the case main body 10 (a range of a predetermined radius centered on the position where two diagonal lines of the bottom rectangle intersect), and the outer periphery of the access restricting portion 2B The access permitting unit 2A is arranged in (FIG. 6B).

  The user can access the access allowing portion 2A by removing the lid 20 and rotating it on the opening surface. However, the lid 20 has a rotation center around the center of the bottom surface of the case body 10 in the XY plane. Therefore, the access restriction unit 2B is maintained in a state in which the user cannot access without cutting the string 30.

  Further, according to another example of the present embodiment, as shown in FIG. 7, a circular opening is formed on the bottom side of the case main body 10, and a screw groove is formed inside the opening to lock the lid 20. A chopped sleeve 10S is formed. In FIG. 7, the state which fractured | ruptured a part of side surface of the case main-body part 10 is shown for description.

  A male screw portion 20S that is screwed into the screw groove of the sleeve 10S is formed on the outer surface of the lid 20. In this example of the present embodiment, on the inner surface side of the lid 20, the surface opposite to the surface on which the male screw portion 20 is formed, and at least one place around the position corresponding to the male screw portion 20, respectively. A pair of winding portions 32 are provided, and a pair of fixing portions 31 are arranged on the inner surface of the case main body 10 so as to correspond to each of the pair of winding portions 32. The string 30 with the respective ends fixed is passed through the winding portion 32. As a result, the lid 20 is suspended from the inside of the upper surface of the case body 10.

  The case main body 10 in this example is used in a product attached to a ceiling, for example. When the user rotates the lid 20 screwed to the bottom of the case body 10 to remove it from the sleeve 10S of the case body 10 to the inside of the case body 10, and further rotates the lid 20, the string 30 The lid 20 is wound up in entanglement. As a result, a gap is formed between the peripheral edge of the lid 20 and the opening peripheral edge of the case main body 10, and the user can access the inside of the case main body 10 through this gap. That is, the accessible range from this gap is the access permission unit 2A, and the access restriction unit 20B is arranged in the direction in which the lid 20 is rolled up.

  Furthermore, in another example of the present embodiment, the lid 20 may be fixed to the case main body 10 on the rotating shaft. In this example, an opening is provided in the lid 20, and when the lid 20 is rotated to a predetermined angle, the opening of the lid 20 coincides with the opening of the case body 10 so that the inside can be accessed through both openings. In addition, an opening may be formed on the case body 10 side.

  1 case, 2 electronic device, 10 case body, 20 lid, 31 fixing part, 32, 34 winding part.

Claims (5)

A case comprising a housing having an opening and a lid having a surface covering the opening of the housing;
While providing a fixing portion for fixing at least one end of the string on one side of the housing or the lid,
Provide at least one of a winding part around which the string is wound on the other side of the housing or the lid, or a fixing part that fixes the other end of the string,
In the case where the movement amount of the lid in a direction normal to the plane and in a direction parallel to the plane is restricted to a predetermined range by the string. The case of claim 1,
A string can be attached to and detached from the fixed portion. The case of claim 1,
Of the fixed portions, the fixed portion to which the string having the lowest tensile strength is fixed is detachable from the string. The case of claim 1,
The plurality of strings have higher tensile strength as the movable range of the lid is larger. In the case according to any one of claims 1 to 4,
At least one string is electrically conductive;
A case further including a circuit unit for detecting disconnection of the string by detecting conduction of the string.

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