JP4173872B2 - Enclosure - Google Patents

Description

  The present invention relates to a housing provided with a housing space for mounting, for example, an extra length processing tool for an optical fiber cable.

A conventional housing is assembled, for example, by aligning the outer peripheral portions of a box-shaped upper housing having an opening and a lower housing. A plurality of locking claws are provided on the outer peripheral portion of the upper housing. The lower housing is provided with an engagement hole at a position corresponding to the locking claw. And a housing | casing is assembled by engaging a latching claw with an engagement hole. For example, an extra length processing tool for winding and holding an optical fiber cable is mounted inside the housing (see Patent Document 1).
JP 2003-344665 A

However, the technique disclosed in Patent Document 1 has a problem that, for example, when performing maintenance or the like on an optical fiber cable mounted inside the housing, the housing must be opened using a tool such as a driver.
Also, when the upper housing is fixed to the lower housing with screws, etc., it is necessary to remove the screws etc. every time the upper housing is removed from the lower housing, and man-hours for maintenance of the optical fiber cable etc. are required. There was a problem of increasing. Since parts such as screws and washers are required to manufacture the casing, there is a problem that the number of parts of the casing increases and the manufacturing cost of the casing increases.

  The objective of this invention is providing the housing | casing which can remove an upper housing | casing easily from a lower housing | casing, without using tools, such as a driver.

The housing according to claim 1 is provided with a first key portion provided on the first wall portion at one end of the outer peripheral portion of the first housing member so as to be movable along the end portion of the opening portion of the first wall portion. Have. A 2nd key part is provided in the position corresponding to a 1st key part in a 2nd housing member, and is engaged with a 1st key part. The first engaging portion is provided on each of the pair of second wall portions orthogonal to the first wall portion in the first housing member.
The pair of first locking portions is provided at a position corresponding to the first engaging portion in the second housing member, and in a state where a part of the outer peripheral portions of the first and second housing members are combined. When the second housing member is slid in the extending direction of the second wall portion with respect to the first housing member in order to engage the two key portions with the first key portion, the second of the first key portion In synchronization with the engagement with the key portion, the first engagement portion is engaged.

  A part of the first key part is exposed on the outer surface of the first wall part, and an operation part for moving the first key part along the extending direction of the first wall part and an inner surface of the first wall part A first abutting surface formed oppositely and a first inclined surface extending from the end of the first abutting surface adjacent to one side of the second wall portion toward the opposite side of the first wall portion. The first abutting surface and the first inclined surface forming an acute angle, and the first key portion that moves to the other side of the second wall portion along the first wall portion by an external force. And an urging portion for returning to the position.

The second key portion is formed at a position corresponding to the first inclined surface, and is second from the second inclined surface facing the first inclined surface and the end of the second inclined surface adjacent to the other side of the second wall portion. The second abutting surface extending along the one wall portion is provided, and the second inclined surface and the second abutting surface are provided with a second projecting portion forming an acute angle.
The second key portion is formed at a position where the second abutting surface comes into contact with the first abutting surface when the outer peripheral portions of the first and second casing members are aligned with each other. The movement of the second housing member to the side opposite to the first wall is restricted by the contact between the first contact surface and the second contact surface. That is, the movement of the second casing member to the side opposite to the first wall is restricted, and the first casing member is attached to the second casing member.

On the other hand, by moving the operation portion of the first key portion to the other side of the second wall portion and applying an external force in the direction of sliding the second housing member, the first contact surface and the second contact surface The contact with the surface can be released. Since the release allows the second housing member to move to the opposite side of the first wall portion, the engagement of the first locking portion to the first engaging portion is released, and the first housing member The second housing member can be easily removed.
In the casing of the second aspect, the plurality of first key portions are formed at intervals along the extending direction of the first wall portion. The plurality of second key portions are formed at positions corresponding to the first key portions, respectively. When the outer peripheral portions of the first and second housing members are aligned with each other, the first contact surfaces simultaneously contact the corresponding second contact surfaces, and the first housing member is the second housing member. Attached to. After the contact, the plurality of first contact surfaces can prevent the second housing member from moving to the side opposite to the first wall portion. That is, it is possible to reliably prevent the second housing member from being detached from the first housing member.

  According to another aspect of the housing of the present invention, the outer surface of the operation portion is arranged in alignment with the outer surface of the first wall portion, and the operation portion and the first wall portion have the same pattern. By forming the operation portion so as to be difficult to distinguish from the first wall portion, for example, only an operator who performs maintenance of the casing can operate the operation portion. For this reason, for example, it is possible to prevent the engagement of the first locking portion with the first engaging portion other than performing maintenance or the like of the optical fiber cable mounted inside the housing.

  In the housing of the fourth aspect, the first key portion is formed separately from the first housing member. The first wall portion is formed on one side of a rectangular cut portion formed at a position corresponding to the first key portion and a pair of cut end portions respectively positioned on the second wall portion side of the cut portion, And a protruding portion protruding toward the inside of the first housing member. A 1st key part is provided with a pair of clamping part which each slidably clamps a notch end part along the opening end of a 1st wall part.

  The urging portion of the first key portion is formed on one side of the clamping portion, and the abutting portion that abuts the protruding portion in a state where both the cut end portions are respectively clamped by the clamping portion, and the clamping portion The nipping part located on the opposite side of the abutting part in a state where the abutting part is in contact with the projecting part while being connected to one side of the And an elastic part that presses against. The first inclined surface faces the second wall portion located on the side opposite to the protruding portion.

  The first key portion is fixed to the first wall portion by the pressing of the holding portion by the elastic portion to the both cut end portions. By this fixing, when the second key portion is engaged with the first key portion (when the first locking portion is engaged with the first engagement portion), the second contact surface of the second key portion is the first. The state of being in contact with the first contact surface of the key portion can be maintained. For this reason, the movement to the opposite side to the 1st wall part of the 2nd case member is controlled, and the omission from the 1st case member of the 2nd case member can be prevented. By forming the first key part separately from the first housing member, a mold or the like for molding these members can be formed into a simple shape. For this reason, the manufacturing cost of a housing | casing can be reduced.

  In the housing of claim 5, each first locking portion has a protruding piece protruding toward the second key portion, and the protruding piece protrudes from the opening of the second casing member. It is formed as a locking claw. The side of the projecting piece on the opening side is formed to be inclined so that the projecting piece is tapered. Each first engaging portion extends along the extending direction of the second wall portion, and when the second casing member is slid in the extending direction of the second wall portion, the side of each protruding piece is contacted. A contact piece to be contacted is provided. For this reason, when the second housing member is slid with respect to the first housing member, the sides of the protruding pieces can be simultaneously press-fitted into the corresponding contact pieces. Therefore, the second casing member can be prevented from moving to the opposite side of the first casing member.

  In the housing according to claim 6, the first housing member has an opening end of the second housing member facing the opening end of the first wall portion after the second key portion is engaged with the first key portion. In order to restrict the movement to the opposite side of the engagement direction, a protrusion provided at the opening end of the first wall portion is provided. For this reason, engagement with the 1st engaging part of a 1st latching | locking part can be maintained. As a result, it is possible to prevent the second housing member from being detached from the first housing member.

  According to a seventh aspect of the present invention, there is provided an optical cable surplus length processing section for processing the surplus length of the optical cable formed in the housing space and housed in the first and second housing members. The second casing member can be easily removed from the first casing member simply by moving the operation section of the first key section to the other side of the second wall section. For this reason, it becomes possible to maintain the optical fiber cable mounted inside the housing without performing a troublesome removal work using a tool such as a driver.

  In the present invention, the assembly and disassembly of the housing can be simplified without using a tool such as a driver.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of a housing of the present invention. The housing 100 includes a main body 200 (first housing member) and a lid 300 (second housing member).
The main body 200 and the lid 300 are formed using, for example, polyphenylene ether resin (PPE). The main body portion 200, the lid portion 300, and the key portion 12 to be described later are integrally formed by molding. For this reason, the main-body part 200 and the cover part 300 which have a complicated shape can be formed easily.

  The main body 200 has a flat and substantially rectangular parallelepiped shape, and has a storage space inside. The main body portion 200 is provided around the main body portion 200 and includes a wall portion 10 (10a, 10b, 10c) having a vertical stripe pattern and a bottom surface (not shown) covered with the wall portion 10. Yes. The main body 200 is formed with a rectangular cutout (reference numeral 24 shown in FIG. 2) by cutting out the wall 10a (first wall). The key portion 12 (first key portion) is slidably attached to the cutout portion 24 along the wall portion 10a. Details of the notch 24 and the key 12 will be described with reference to FIGS. L-shaped engaging portions 42 are formed on both sides of the wall portion 10c on the side of the wall portion 10b. In the storage space of the main body part 200, an extra length processing tool 400 (extra length processing part) for processing the extra length of the optical fiber cable is detachably stored in the main body part 200.

  The lid portion 300 has, for example, a substantially rectangular parallelepiped shape that is flatter than the main body portion 200. The lid part 300 has a wall part 14 (14 a, 14 b, 14 c) provided in the periphery, and a facing surface 16 that is covered by the wall part 14 and faces the main body part 200. An L-shaped locking claw 18 (first locking portion) that extends toward the main body portion 200 and protrudes from the opening portion of the lid portion 300 is provided on the side of each wall portion 14b. Two portions are formed along the current direction. L-shaped locking pieces 44 are respectively formed on the wall portion 14 c at positions corresponding to the engaging portions 42 of the main body portion 200. The lid portion 300 is integrally formed with two key portions 20 that protrude toward the main body portion 200 at positions corresponding to the key portions 12 of the main body portion 200.

  2A and 2B show a state in which the wall portion 10a shown in FIG. 1 is viewed from the outside and the inside. The wall 10a has a surface 22 that is recessed inward from the outer surface of the wall 10a. The surface 22 is formed with a rectangular cutout portion 24 (cut portion) having a pair of side portions 24a and 24b. On the side of the side 24a, an L-shaped protrusion 26 (protrusion) that protrudes on the opposite side 30 of the surface 22 to the opposite side of the surface 22 is formed. On the other hand, an L-shaped projection 28 that protrudes inward from the surface 30 is formed on the side of the side 24b.

  3A and 3B show details of the key unit 12 shown in FIG. The key portion 12 is located in the depression of the wall portion 10a shown in FIG. 2, abuts on the surface 22, and protrudes from the operation portion 32 having the same vertical stripe pattern as the wall portion 10 in FIG. And a protrusion 34. By forming the operation unit 32 so as to be difficult to distinguish from the wall unit 10, for example, only an operator who performs maintenance or the like of the housing 100 can recognize the operation unit 32. For this reason, it is prevented that a general user disassembles the housing 100 by mistake. The protrusion 34 is formed with depressions 34a and 34b (clamping portions) for clamping the side portions 24a and 24b shown in FIG. A pair of protrusions 36 (first protrusions) are formed at a predetermined interval in the extending direction of the operation part 32 at the end of the protrusion 34 opposite to the operation part 32. Each protrusion 36 extends from the surface 36a (first contact surface) facing the operation unit 32 and the end of the surface 36a on the recess 34a side to the opposite side of the operation unit 32, and has an acute angle with the surface 36a. And a surface 36b (first inclined surface) formed. An urging portion 38 formed in a U-shape is formed on the side of the recess 34b on the side of the protrusion 36 so as to obtain elasticity. The urging portion 38 includes an elastic portion 38a and a surface 38b (abutting portion) formed at the end of the elastic portion 38a opposite to the recessed portion 34a.

  4A and 4B show a state where the key portion 12 is attached to the wall portion 10a. In order to make the figure easy to understand, the key portion 12 is shaded. In this state, the surface of the operation part 32 is arranged in alignment with the surface of the wall part 10a. At this time, a not-shown recess 34a (FIG. 3) of the key portion 12 abuts on the inside of the L-shaped projection 26 of the wall 10a. Due to this contact, the key portion 12 is prevented from coming out upward in the figure. The recessed portion 34b of the key portion 12 holds the side portion 24b of the wall portion 10a in order to support the key portion 12 on the wall portion 10a. By this clamping, the key part 12 is prevented from coming off to the wall part 10a side.

  The surface 38b of the biasing portion 38 of the key portion 12 abuts on the L-shaped inner surface (the surface facing downward in FIG. 4B) of the side wall 10a. Due to this contact, the key portion 12 is prevented from coming out upward in the figure. The tip of the urging portion 38 (the tip of the surface 38b) abuts on the inner side of the protrusion 28 of the side wall 10a (the surface facing the left side in FIG. 4B). Due to this contact, the elastic portion 38a bends when the operating portion 32 is slid toward the protruding portion 28 side. Due to the reaction force due to the bending, the operation portion 32 is biased toward the protrusion portion 26 in a state where no external force is applied. Therefore, the key portion 12 is slidably attached to the wall portion 10a in a state where the side portions 24a and 24b are sandwiched between the recessed portions 34a and 34b.

  FIG. 5 shows a cross section taken along the line A-A ′ of the main body 200 and the lid 300 of FIG. 1. Here, the A-A ′ line is a line that is equidistant from the pair of wall portions 10 b and parallel to the wall portion 10 b. At the opening end of the wall portion 10a, projections 46 are formed at two locations with a gap therebetween. In the wall portion 14 a of the lid portion 300, recess portions 48 are respectively formed at positions corresponding to the protrusions 46 of the main body portion 200. Each locking claw 18 includes a protruding portion 18a extending from the side of the wall portion 14b toward the main body portion 200, and a protruding piece formed at the tip of the protruding portion 18a and protruding toward the key portion 20 (FIG. 1). 18b. The side 18c on the facing surface 16 side of each protruding piece 18b is formed to be inclined so that the protruding piece 18b is tapered.

  Engagement portions 40 a and 40 b (first engagement portions) are formed on the respective wall portions 10 b of the main body portion 200 at positions corresponding to the locking claws 18 of the lid portion 300. Each of the engaging portions 40a and 40b has contact portions 40c and 40d with which the tip of the protruding piece 18b of the lid portion 300 is in contact, and a side 18c in contact with the contact portions 40c and 40d toward the facing surface 16 side. It has the control part 40e and 40f (contact piece) which prevent a movement. Further, the engaging portion 40a on the wall 10a side has an L-shaped support portion 40g at a position separated by a distance b from the tip of the restricting portion 40e. The length a of the side of the end portion of the protruding piece 18b on the main body 200 side is smaller than the distance b.

  6 and 7 show a process in which the lid part 300 is attached to the main body part 200. FIG. In FIG. 6, first, the lid 300 is placed on the main body 200 with the locking claw 18 aligned with the engaging portions 40 a and 40 b. Next, in this state, the lid part 300 is slid to the wall part 10a side (the arrow direction in the figure). By this sliding, as shown in FIG. 7, each protruding piece 18b is engaged with the engaging portions 40a and 40b. At this time, pressure is gradually applied to the restricting portions 40e and 40f by the side 18c of each protruding piece 18b. And each protrusion piece 18b is pushed in to the wall part 10a side, and the front-end | tip of each protrusion piece 18b contact | abuts to contact part 40c, 40d. Therefore, the movement of the lid 300 to the side opposite to the main body 200 is restricted, and the lid 300 is prevented from being detached from the main body 200.

  On the other hand, the recess 48 comes into contact with the contact portion 40 c side of the protrusion 46 by this sliding. The recessed portion 48 gets over the protrusion 46 when the wall portion 14a side of the lid portion 300 warps upward in the drawing. The protrusion 46 abuts on the inner side of the recess 48. By this contact, the movement of the lid 300 in the direction opposite to the arrow direction in the figure is restricted. For this reason, the engagement of the protruding pieces 18b with the engaging portions 40a and 40b can be maintained. Further, at the time of this engagement, the locking piece 44 and the engaging portion 42 are engaged with each other. Thereby, the wall part 14c side of the cover part 300 is prevented from coming off from the main body part 200.

  Each protruding piece 18b is press-fitted into the engaging portions 40a and 40b, and the recess 48 is positioned over the protrusion 46, so that the lid portion 300 attached to the main body portion 200 is opposite to the wall portion 10a. A certain level of force is required to move the That is, a certain level of force is required to remove the lid 300 from the main body 200. For this reason, the lid part 300 is easily removed from the main body part 200. However, the projection part 18a collides with the support part 40g, thereby preventing the lid part 300 from falling. Although not shown, the key portion 20 shown in FIG. 1 is locked to the key portion 12 during this engagement. The locking of the key part 20 and the key part 12 will be described with reference to FIG.

  8A to 8C show the operation of the key portion 12 when the lid portion 300 is attached to the main body portion 200. FIG. Here, for easy understanding of the figure, the lid 300 shows only the key part 20, and the key part 20 is shown by hatching. The key portion 20 includes a surface 20a (second contact surface) parallel to the surface 36a of the protrusion 36, and a surface 20b (second inclined surface) that faces the inclined surface 36b and forms an acute angle with the surface 20a. ing. In the state shown in FIG. 6, as shown in FIG. 8A, the surface 36 b of the protrusion 36 abuts on the surface 20 b of the key portion 20. In this state, the lid portion 300 (key portion 20) is slid toward the operation portion 32 (in the direction of the arrow in the figure, the same direction as the arrow direction in FIG. 6). When sliding, the surface 20b presses the surface 36b in the direction of the arrow in the figure. By this pressing, the key portion 12 moves to the urging portion 38 side as shown in FIG. And the elastic part 38a of the urging | biasing part 38 bends to the projection part 28 side. When the lid portion 300 is further slid, the key portion 12 further moves to the biasing portion 38 side. Then, as shown in FIG. 7, when the locking claw 18 is engaged with the engaging portions 40a and 40b, the contact between the surface 20b and the surface 36b is released. That is, nothing restricts the movement of the protruding portion 36 to the opposite side of the urging portion 38. For this reason, as shown in FIG.8 (c), the key part 12 returns to the original position with the restoring force of the elastic part 38a. At this time, the surface 36 a of the protrusion 36 abuts on the surface 20 a of the key portion 20. This contact restricts movement of the key portion 20 (lid portion 300) in the direction opposite to the arrow direction. That is, the lid part 300 is prevented from being detached from the main body part 200. Thereafter, when removing the lid portion 300 from the main body portion 200, the contact between the surface 20a and the surface 36a can be released simply by moving the operation portion 32 to the biasing portion 38 side. This release allows the lid 300 (key part 20) to move to the side opposite to the operation part 32 (in the direction opposite to the arrow direction in FIG. 6), so that the engaging claw 18 engages with the engaging part 40. Can be easily removed from the main body 200.

  As described above, in the first embodiment, the engaging claw 18 is engaged only by moving the operating portion 32 toward the biasing portion 38 and sliding the lid portion 300 in the direction opposite to the arrow direction in FIG. The engagement with the portion 40 can be released. For this reason, it is possible to remove the lid 300 from the main body 200 without removing a screw or the like using a tool such as a screwdriver, and without opening the lid 300 with a tool such as a screwdriver. As a result, the number of man-hours for performing maintenance of the optical fiber cable mounted inside is reduced. Since no parts such as screws and washers are required to manufacture the housing 100, the number of parts of the housing 100 can be reduced. As a result, the manufacturing cost of the housing 100 can be reduced.

  As mentioned above, although this invention was demonstrated in detail, said embodiment and its modification are only examples of this invention, and this invention is not limited to this. Obviously, modifications can be made without departing from the scope of the present invention.

  The present invention is applied to a housing having an accommodation space for mounting, for example, an extra length processing tool for an optical fiber cable.

It is a perspective view which shows 1st Embodiment of the housing | casing of this invention. It is a perspective view which shows the state which looked at the wall part from the outer side and the inner side. It is a perspective view which shows the detail of a key part. It is a perspective view which shows the state in which the key part was attached to the wall part. It is sectional drawing which follows the A-A 'line of FIG. It is sectional drawing which shows the process in which a cover part is attached to a main-body part. It is sectional drawing which shows the process in which a cover part is attached to a main-body part. It is a front view which shows operation | movement of the key part when a cover part is attached to a main-body part.

Explanation of symbols

10, 10a, 10b, 10c Wall part 12 Key part 14, 14a, 14b, 14c Wall part 16 Opposite surface 18 Locking claw 18a Projection part 18b Projection piece 18c Side 20 Key part 20a, 20b Surface 22 Surface 24 Notch part 24a, 24b Side part 26 Protrusion part 28 Protrusion part 30 Surface 32 Operation part 34 Protrusion part 34a, 34b Depression part 36 Protrusion part 36a, 36b Surface 38 Energizing part 38a Elastic part 38b Surface part 40, 40a, 40b Engagement part 40c, 40d Contact part 40e, 40f Restriction part 40g Support part 42 Engagement part 44 Locking piece 46 Protrusion 48 Depression part 100 Case 200 Main part 300 Cover part 400 Extra length processing tool

Claims (7)

The outer peripheral portions of the box-shaped first and second housing members each having an opening are aligned with each other, and a housing having a housing space for mounting components therein,
A first key portion provided on the first wall portion at one end of the outer peripheral portion of the first housing member so as to be movable along the opening end of the first wall portion;
A second key portion provided at a position corresponding to the first key portion and engaged with the first key portion in the second casing member;
In the first housing member, a first engagement portion provided on each of a pair of second wall portions orthogonal to the first wall portion;
In the second housing member, the second key portion is provided at a position corresponding to the first engaging portion, and the second key portion is in a state where a part of the outer peripheral portions of the first and second housing members are combined. When the second housing member is slid in the engaging direction, which is the extending direction of the second wall portion, with respect to the first housing member in order to engage with the first key portion, A pair of first locking portions respectively engaged with the first engagement portion in synchronization with the engagement of the key portion with the second key portion;
The first key part is
A part of the outer surface of the first wall portion is exposed, and an operating portion for moving the first key portion along the opening end of the first wall portion;
A first abutting surface formed to face the inner surface of the first wall portion and an end portion of the first abutting surface adjacent to one side of the second wall portion opposite to the first wall portion. A first projecting portion having a first inclined surface extending toward the first surface, wherein the first contact surface and the first inclined surface form an acute angle;
An urging portion for returning the first key portion that moves to the other side of the second wall portion along the first wall portion by an external force;
The second key part is
The first inclined surface is formed at a position corresponding to the first inclined surface, the second inclined surface facing the first inclined surface, and the end of the second inclined surface adjacent to the other side of the second wall portion. A second abutment surface extending along the wall portion, the second inclined surface and the second abutment surface having an acute angle; and the second key portion, A housing, wherein the second contact surface is formed at a position in contact with the first contact surface when the outer peripheral portions of the first and second housing materials are aligned with each other. The housing of claim 1,
A plurality of the first key portions formed at intervals along the first wall portion;
A housing comprising a plurality of the second key portions formed at positions corresponding to the first key portions, respectively. The housing of claim 1,
The outer surface of the operation part is arranged in alignment with the outer surface of the first wall part, and the operation part and the first wall part have the same pattern. The housing of claim 1,
The first key portion is formed separately from the first housing member,
The first wall portion is
A rectangular cut portion formed at a position corresponding to the first key portion;
A protruding portion that is formed on one side of a pair of cutting end portions respectively positioned on the second wall portion side of the cutting portion and protrudes toward the inside of the first housing member;
The first key part is
A pair of clamping portions that slidably clamp the cut end portions along the opening ends of the first wall portions;
The biasing part of the first key part is
An abutting portion that is formed on one side of the clamping portion and that abuts against the protruding portion in a state where the both cut end portions are respectively clamped by the clamping portion;
The holding portion is connected to one side of the holding portion, has elasticity, and the holding portion is located on the opposite side of the contacting portion in a state where the contact portion is in contact with the protruding portion. An elastic part that presses the part against the cut end corresponding to the clamping part,
The first inclined surface faces the second wall portion located on the opposite side to the protruding portion. The housing of claim 1,
Each of the first locking portions has a protruding piece protruding toward the second key portion, and the protruding piece protrudes from an opening of the second housing member as an L-shaped locking claw. Formed,
The side of the projecting piece on the opening side is inclined to form the projecting piece in a tapered shape,
Each of the first engaging portions extends along the extending direction of the second wall portion, and each of the protrusions when the second casing member is slid in the extending direction of the second wall portion. A housing comprising a contact piece with which the side of the piece comes into contact. The housing of claim 1,
The first housing member has an opening end of the second housing member facing the opening end of the first wall portion after the second key portion is engaged with the first key portion. A housing provided with a protrusion provided at an opening end of the first wall portion in order to restrict movement to the opposite side of the direction. The housing of claim 1,
A housing comprising an optical cable surplus length processing section for processing a surplus length of an optical cable formed in the housing space and housed in the first and second housing members.

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