JP2008034718A - Case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a case in which it is difficult to easily release a locking state and the case is constituted by small parts counts, and furthermore a lid can be arranged at a free position of a case main body. <P>SOLUTION: The case provided with a lid 2 engaging with an opening 11 in a case main body 1 is equipped with: a plasticity fastening plate 23 projectively provided along a side surface 12c of the opening 11 at an inner surface near the side edge of the lid 2; fastening means provided at an edge of the fastening plate 23 and at the side surface 12c of the opening 11; a hole 30 of a rectangular shape formed near the side edge of the opening 11; and a plasticity pushing plate 32 provided at the side surface 12c of the opening 11 in a hanging form along the formation direction of the hole 30. When a plate piece in a form of a long strip of paper is inserted in the hole 30, the pushing plate 32 bends and pushes the fastening plate 23 in the direction leaving from the side surface 12c of the opening 11 through a protrusion 35. While releasing a locking state of the fastening means, the lid 2 is pushed toward an exterior of the case main body 1 to uncouple the lid 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a housing that has a lid that is fitted into an opening provided in a housing body and can be attached and detached by using a jig.

On the outer surface of the casing used for the electrical product, an opening for work for replacement of maintenance parts such as lamps and lenses arranged in the product or adjustment of the internal parts is provided. Usually, a lid that fits into the opening is provided for dust prevention and design. The lid is fixed by locking means provided on the side edge of the lid and the side edge of the opening. For example, in the cases described in Patent Documents 1 and 2, the lid is fitted into a groove provided on the side edge of the opening, and is slid along the groove to be fitted into the opening. The locking means includes a locking hole provided on the side edge of the opening and a locking projection provided on the side edge of the lid. In the case described in Patent Document 3, the lid is similarly slid into the opening, and is provided at the notch and the opening side edge provided on the lid, and is formed of a spring-supported locking projection. It is fitted with a stopping means.
JP-A-9-7756 Japanese Patent Laid-Open No. 11-288700 JP 2001-118555 A

  However, in the casings described in Patent Documents 1 and 2, the locking means can be released from the locked state by pressing the outer surface near the side edge of the lid provided with the locking projection. There is a possibility that the lid may be unexpectedly detached from the housing due to contact from the outside. Moreover, in the housing | casing described in patent document 3, the latching means is comprised from several components, and there exists a problem that manufacturing cost rises. Furthermore, since the casings described in Patent Documents 1 to 3 are slid when the lid is fitted, the lid must be provided at the end of the casing, and the lid is disposed at a free position on the outer surface of the casing. There is a problem that you can not.

  The present invention has been made in view of such circumstances, a locking plate portion protruding from an inner surface in the vicinity of the side edge of the lid, a locking means provided on the side surface of the locking plate portion and the opening portion, and the opening portion. By providing a hole formed in the vicinity of the side edge of the metal plate, and a flexible pressing plate portion suspended from the side surface of the opening along the hole forming direction, the locked state can be easily released. An object of the present invention is to provide a housing that is difficult to configure, is configured with a small number of parts, and in which a lid can be disposed at a free position of the housing body.

  Another object of the present invention is to provide a jig by providing a hole having a rectangular opening and forming the short side of the bottom of the hole shorter than the short side of the opening of the hole. An object of the present invention is to provide a housing that can be easily released from the locked state of the lid and detached from the opening of the lid as it is inserted into the hole.

  Furthermore, another object of the present invention is supported at a position adjacent to the hole, and the lid is easily detached from the opening by forming the pressing plate so as to bend toward the outside of the housing. An object of the present invention is to provide a housing that can be used.

  Furthermore, another object of the present invention is to provide a housing that can reliably remove the lid from the opening by using a jig by providing a protrusion toward the locking plate on the pressing plate. .

  The housing according to the present invention is a housing provided with a lid that fits into an opening provided in the housing body, and is protruded along the side surface of the opening on the inner surface in the vicinity of the side edge of the lid. A plastic locking plate, locking means provided on the front end of the locking plate and the side surface of the opening, a hole formed near the side edge of the opening, and the hole A flexible pressing plate portion that is suspended from a side surface of the opening portion along the forming direction of the opening portion, and when the pressing plate portion is bent, the locking plate portion of the opening portion is It is comprised so that it may press in the direction away from a side surface.

  In the present invention, a plastic locking plate portion projects from the inner surface near the side edge of the lid along the side surface of the opening. Further, locking means are provided at the front end portion and the opening side surface of the locking plate portion, and the locking plate portion is locked to the opening side surface by the locking means. On the other hand, a hole is provided in the vicinity of the side edge of the opening, and a flexible pressing plate is vertically provided on the side of the opening along the direction in which the hole is formed. In this way, when the strip-shaped plate piece is inserted into the hole while the lid is fitted in the opening, the pressing plate bends so as to press the locking plate in a direction away from the side of the opening. Thus, the locking state of the locking means is released, and the lid is removed from the opening.

  The housing according to the present invention has an opening in which the hole portion has a rectangular shape in which a straight portion of a side edge of the opening portion and a long side thereof are substantially parallel, and a short side of a bottom surface of the hole portion is It is characterized by being shorter than the short side of the opening.

  In the present invention, the hole has a rectangular opening whose long side is substantially parallel to the straight portion of the side edge of the opening, and the short side of the bottom surface of the hole is the short side of the opening. Shorter than. Thereby, when a strip-shaped plate piece is inserted in a hole part, a strip-shaped plate piece contact | abuts with a press plate part. As the strip-shaped plate piece is inserted into the hole, the pressing plate moves around the upper side and presses the locking plate in a direction away from the side surface of the opening, thereby releasing the locking state of the locking means. Is done.

  The housing according to the present invention is characterized in that the pressing plate portion is supported at a position adjacent to the long side of the opening of the hole portion.

  In the present invention, the pressing plate portion bends to the outside of the housing around the position adjacent to the long side of the opening of the hole portion, and the lid is detached from the opening portion via the locking plate portion.

  The casing according to the present invention is characterized in that the pressing plate portion is provided with a protrusion at a tip portion.

  In the present invention, in the pressing plate portion, the tip of the projection provided at the tip portion presses the locking plate portion.

  In the present invention, a plastic locking plate portion projecting substantially parallel to the side surface of the opening portion on the inner surface near the side edge of the lid, and a tip portion of the locking plate portion and a side surface of the opening portion, respectively. The provided locking means, the hole formed in the vicinity of the side edge of the opening, and the flexible pressing plate that is suspended from the side surface of the opening along the forming direction of the hole. Prepare. When the strip-shaped plate piece is inserted into the hole with the lid fitted into the opening, the pressing plate presses the locking plate in the direction away from the side surface of the opening, and the locking means Release the locked state. Thereby, unless the strip-shaped plate piece is inserted into the hole, the locked state of the locking means is not easily released. Therefore, it is possible to prevent the lid from being easily removed. Moreover, since it does not have a slide mechanism, it becomes possible to arrange | position a cover in the free position of a housing body.

  In the present invention, since the short side of the bottom surface of the hole is shorter than the short side of the opening, the strip-shaped plate piece is pressed only by the operation of inserting the strip-shaped plate piece into the hole portion in a substantially vertical direction. The abutting state can be brought into contact with the plate portion, the pressing plate portion can be bent, and the locked state can be easily released.

  In the present invention, the pressing plate portion is supported at a position adjacent to the long side of the opening of the hole portion, and is formed so as to bend in the direction toward the outside of the housing. When inserting the plate-like plate piece, the lid is detached from the housing body along with the release of the locked state.

  In the present invention, since the projection provided at the tip of the pressing plate presses the tip of the locking plate, the locking means provided at the tip of the locking plate is unlocked. The present invention has an excellent effect such that it can be surely performed.

  Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof. FIG. 1 is a perspective view showing a housing having a lid provided with locking means. 2 is a perspective view showing the casing with the lid attached to the casing body, FIG. 3 is a cross-sectional view of the main part structure taken along line III-III in FIG. 2, and FIG. 4 is a line IV-IV in FIG. FIG.

  FIG. 1 shows a housing for housing a liquid crystal projector or the like (not shown), and is composed of a housing body 1 and a lid 2. A rectangular parallelepiped opening 11 for accommodating a discharge lamp lamp (not shown), a projection lens (not shown) or the like is recessed in a part of the outer surface 10 of the housing to a predetermined depth. A discharge lamp lamp or the like is installed on the opening installation surface 11a inside the opening 11 so as to be replaceable. After the replacement, the lid 2 is fitted into the opening 11 as shown in FIG. The opening 11 is provided with substantially U-shaped support surfaces 13a, 12a, 13a in plan view for supporting the lid 2 at predetermined depth positions from the opening surface. Further, side surfaces 13b, 12c, 13b are suspended from one end of each of the support surfaces 13a, 12a, 13a toward the opening portion installation surface 11a. In other words, the hole 30 having a rectangular shape in plan view is formed near the side edge of the opening 11. The hole 30 is formed with a rectangular opening 31 for inserting a strip-shaped plate piece to be described later. Here, the long side of the opening 31 is L1, and the short side is W1. Further, a substantially U-shaped pressing plate portion 32 as viewed in the direction of the white arrow is suspended from the substantially central portion of the side surface 12c toward the opening installation surface 11a. The pressing plate 32 is vertically suspended from a part of the support surface 12a adjacent to the long side of the opening 31 in a direction opposite to the white arrow shown in FIG. Two slits 32 a and 32 b are formed at both ends of the pressing plate portion 32 along the direction in which the pressing plate portion 32 is suspended. At the lower end of the pressing plate portion 32 formed between the slits 32a and 32b, as shown in FIG. 4, an L-shaped projection 35 having a sectional view is provided in the direction opposite to the white arrow. Note that a gap 32c is formed between the bottom surface of the protrusion 35 and the bottom surface 34 where the hole 30 is closed as shown in FIG. On both sides of the pressing plate 32 on the side surface 12c, locking projections 12b and 12b having a triangular shape in cross section are provided in the direction opposite to the white arrow shown in FIG.

  Next, the sectional structure of the hole 30 and the pressing plate 32 will be described with reference to FIG. The hole portion 30 is surrounded by a pressing plate portion 32, a closed bottom surface 34, and a side surface 33 arranged to face the pressing plate portion 32, and is formed in a tapered shape toward the bottom surface 34. At the tip of the side surface 33 of the opening 11, a bottom surface 34 having a rectangular shape in plan view is extended in a predetermined length in parallel to the opening installation surface 11a toward the inside of the housing (opposite the white arrow). The side surface 33 of the opening portion 11 is gently inclined toward the pressing plate portion 32 from the opening 31 to the bottom surface 34, and conversely, the pressing plate portion 32 also faces the side surface 33 side (from the support surface 12 a serving as a fulcrum toward the bottom surface 34. Inclined to the outside of the housing. A protrusion 35 is provided at the front end of the pressing plate portion 32 substantially in parallel with the extending direction of the bottom surface 34. Thus, the opening 11 is formed in a tapered shape toward the bottom surface 34, and the bottom surface 34 short side W <b> 2 is formed shorter than the short side W <b> 1 of the opening 31. Here, the depth of the hole 30 is D1.

  Next, the structure of the lid | cover 2 is demonstrated using FIG. The lid 2 is a rectangular flat plate having substantially the same shape as the opening of the opening 11, and includes a locking collar 24, ribs 25 and 25, a locking plate 23, locking holes 23 a and 23 a, and a notch 22. Consists of. On the back surface 21 of the lid 2, ribs 25 and 25 for guiding the fitting of the lid 2 are extended in the longitudinal direction. The side surfaces of the ribs 25 and 25 are guided along the side surfaces 13b and 13b of the housing body 1, and a part of the back surface 21 comes into contact with the support surfaces 13a, 12a, and 13a. The locking collar 24 is formed in an L-shaped cross-sectional view at the central portion on one side of the short side of the lid 2. When the lid 2 is fitted, the portion of the locking collar 24 bent at a right angle is hooked on the short side of the opening 11 and the lid 2 is rotated toward the opening 11 around this portion.

  On the other hand, a rectangular locking plate portion 23 is suspended in the vicinity of the other side central portion of the side edge that is the short side of the back surface 21 of the lid 2. The locking plate portion 23 protrudes from the back surface 21 so as to be substantially parallel to the side surface 33 of the opening 11 when fitted. Lock holes 23a and 23a corresponding to the lock protrusions 12b and 12b provided on the side surface 12c are formed on the lock plate portion 23 on the side opposite to the direction in which the lock collar 24 is formed. In the present embodiment, as the locking means 4, the locking plate portion 23 is provided with locking holes 23a, 23a that are concave, and the locking projections 12b, 12b that are convex are provided on the side surface 12c. A locking projection that is convex may be provided on the locking plate portion 23, and a locking hole that is concave may be provided on the side surface. Further, a U-shaped notch 22 in a plan view is formed in the central portion on the other side of the short side of the back surface 21 of the lid 2. The notch shape of the notch 22 is substantially the same as the shape of the opening 31 of the hole 30 described above.

  In the above configuration, the fitting operation between the lid 2 and the opening 11 of the housing body 1 will be described with reference to FIGS. 3 and 4. As shown in FIG. 4, as the lid 2 starts to be fitted, the tip of the locking plate portion 23 comes into contact with the protrusion 35. The protrusion 35 moves in the direction of a white arrow centering on the upper side of the pressing plate portion 32 due to contact with the locking plate portion 23. During the movement of the projection 35, the locking holes 23a, 23a formed in the locking plate portion 23 as shown in FIG. 3 are formed on the locking projections 12b, 12b protruding from the side surface 12c correspondingly. At the same time, the back surface 21 of the lid 2 comes into contact with the support surfaces 13a, 12a, 13a of the opening 11, and the fitting is completed.

  In the state in which the lid 2 is fitted in the opening 11, the surface of the lid 2 and the surface of the housing body 1 are flush with each other and have no projecting members and have a favorable design appearance. In addition, the locking means 4 constituted by the locking holes 23a and 23a and the locking projections 12b and 12b for locking the lid 2 and the opening 11 of the housing main body 1 includes the housing main body to which the lid 2 is fitted. Since it is provided in the vicinity of the bottom surface 34 of the hole 30 located inside 1, the locked state is prevented from being easily released from the outside of the housing body 1. Therefore, there is no possibility that the locking means 4 is unexpectedly released from the locked state due to physical contact from the outside, and the lid 2 is detached from the housing body 1.

  5 is a perspective view showing a housing in a state where the strip-shaped plate piece 3 is inserted into the hole 30 through the notch 22 of the lid 2, and FIG. 6 is a structural cross-sectional view taken along the line VI-VI in FIG. 7 is a structural sectional view taken along line VII-VII in FIG. When the lid 2 is detached from the opening 11 of the housing body 1, the strip-shaped plate piece 3 is placed in a direction substantially perpendicular to the outer surface 10 of the housing body 1 as indicated by the white arrow in FIG. 5. It inserts in the hole 30 provided in the support surface 12a through the notch part 22 of this. Here, the width of the strip-shaped plate piece 3 is L2 as shown in FIG. 5, the thickness of the strip-shaped plate portion 3 is T1, and the length of the strip-shaped plate piece 3 is D2 as shown in FIG. L2 <L1 so that the strip-shaped plate piece 3 can be inserted into the hole 30 through the opening 31, and T1 is a strip-shaped plate piece when the strip-shaped plate piece 3 is inserted into the hole 30. W1> T1> W2 so that 3 contacts the pressing plate 32, and D2 satisfies D2> D1 so that one end of the strip-shaped plate piece 3 inserted into the hole 30 protrudes from the hole 30 It is good to decide.

  Here, the bending operation of the pressing plate portion 32 when the strip-shaped plate piece 3 is inserted into the hole portion 30 will be described with reference to FIG. Since the hole 30 is formed in a taper shape in the depth direction, as shown in FIG. 6, as the strip-shaped plate piece 3 is inserted into the hole 30, the strip-shaped plate piece 3 is a pressing plate. The portion 32 and the side surface 33 of the opening 11 are brought into contact with each other. Due to the contact of the strip-shaped plate piece 3 with the pressing plate portion 32 and the side surface 33 of the opening 11, the pressing plate portion 32 moves toward the locking plate portion 23 around the upper side, and is locked via the protrusion 35. The plate portion 23 is pressed so as to move in the direction of the white arrow centering on the upper side. During the movement of the projection 35, the locking holes 23 a and 23 a formed in the locking plate portion 23 and the locking projections 12 b and 12 b locked to the locking plate 23 are separated as shown in FIG. The lock is released. Further, the white arrow shown in FIG. 6 also has a component in the outer direction of the housing body 1. Therefore, the protrusion 35 pushes the lid 2 toward the outside of the housing body 1 as shown by the white arrow in FIG. Thus, the locking state of the locking means 4 and the casing main body 1 of the lid 2 can be released only by an operation of inserting the strip-shaped plate piece 3 into the hole 30 substantially perpendicularly to the outer surface 10 of the casing main body 1. Can be simultaneously removed from the opening 11.

  Since the locking means 4 is provided in the vicinity of the bottom surface 34 of the hole 30, the locking means 4 can be easily released from the locked state or unexpectedly released by contact with an object from the outside, and the lid 2. There is no risk of detachment from the housing body 1. Furthermore, the strip 2 is required to have a strip-shaped plate piece 3 as a jig with restrictions on the thickness T1, the length D2 and the width L2, and the lid 2 is prevented from being easily detached from the housing body 1. To do. By providing the protrusion 35 at the distal end portion of the pressing plate portion 32 and pressing the distal end portion of the engaging plate portion 23 provided with the engaging holes 23a, 23a, the engaging holes 23a, 23a and the engaging protrusions are surely provided. It becomes possible to cancel | release latching with 12b, 12b. Further, since the lid 2 is fitted into the opening 11 without using a slide mechanism, the lid 2 can be arranged at a free position of the housing body 1. Furthermore, since the housing body 1 and the lid 2 are each integrally molded, the number of parts is small and the manufacturing cost can be suppressed.

  In the above embodiment, the support surface 12a is provided and the hole 30 formed on the support surface 12a is shown. However, the present invention is not limited to this, and the housing body 1 is not provided without providing the support surface 12a. The hole 30 may be directly formed in the vicinity of the edge of the outer surface 10 on the side of the opening 11. FIG. 8 is a perspective view showing another example of the lid 2 and the housing provided with the locking means according to another embodiment. The hole 30 is provided on the outer surface 10 of the housing body 1 so that the long side is substantially parallel to the side surface 12 c of the opening 11. In the present embodiment, a case in which a liquid crystal projector (not shown) is accommodated has been described as an example. However, the case is not limited to this and may be a case used for an electronic device such as a video device or a personal computer.

It is a perspective view which shows the housing | casing which has a lid | cover provided with the latching means. It is a perspective view which shows the housing | casing of the state which attached the lid | cover to the housing body. It is principal part structure sectional drawing in the III-III line of FIG. It is principal part structure sectional drawing in the IV-IV line of FIG. It is a perspective view which shows the housing | casing of the state in which the strip-shaped board piece was inserted in the hole part through the notch part of a lid | cover. FIG. 6 is a structural cross-sectional view taken along line VI-VI in FIG. 5. FIG. 7 is a structural cross-sectional view taken along line VII-VII in FIG. 5. It is a perspective view which shows the other example of the lid | cover provided with the latching means which concerns on other embodiment, and a housing | casing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case main body 2 Lid 4 Locking means 11 Opening part 23 Locking plate part 30 Hole part 31 Opening 32 Pressing plate part 34 Bottom face 35 Projection

Claims (4)

In a housing having a lid that fits into an opening provided in the housing body,
A plastic locking plate portion projecting from the inner surface of the lid in the vicinity of the side edge along the side surface of the opening;
Locking means respectively provided on the front end of the locking plate and the side surface of the opening;
A hole formed in the vicinity of the side edge of the opening;
A flexible pressing plate portion suspended from the side surface of the opening portion along the hole forming direction;
The press plate portion is configured to press the locking plate portion in a direction away from the side surface of the opening when the press plate portion is bent. The hole has an opening that forms a rectangular shape in which the straight portion of the side edge of the opening and the long side thereof are substantially parallel, and the short side of the bottom of the hole is shorter than the short side of the opening The housing according to claim 1. The casing according to claim 1, wherein the pressing plate portion is supported at a position adjacent to a long side of the opening of the hole portion. The casing according to any one of claims 1 to 3, wherein the pressing plate portion is provided with a protrusion at a tip portion.

Images