JP2012059990A - Lock structure of lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability of a lock structure of a lid.SOLUTION: An engaged piece 15 of a lid 5 closing an opening 4 of an upper case 3 is engaged with an engagement protrusion 8 of the upper case 3, so as to restrain a movement of the lid 5 in a direction of an arrow B. An engagement piece 17 of the lid 5 is engaged with a pawl part 26 of an engagement piece 25 of a lower case 2, so as to restrain an upward movement of the lid 5. While the lid 5 is being inclined, when the engaged piece 15 is engaged with the engagement protrusion 8, an inclined face 27 of the pawl part 25 comes into contact with an inclined face 18 of the engagement piece 17. When the lid 5 is pressed downward, the engagement piece 25 ie elastically deformed by a cam action of the inclined faces 17, 18, and the engagement piece 17 is engaged with the pawl part 26 of the engagement piece 25.

Description

  The present invention relates to a lid locking structure that holds a lid in a locked state when an opening of a dry cell housing in which a dry battery or the like is accommodated is closed with the lid.

  A conventional lid locking structure is disclosed in Patent Document 1. This will be described with reference to FIG. In the figure, a housing 101 is provided with a housing portion 102 for housing a dry battery, accessories, and the like, and an opening 103 of the housing portion 102 is closed by a lid 105. The lid 105 is restricted from moving in the direction of arrow A-B by engaging the latching portion 107 a of the elastic engagement piece 107 with the convex portion 106 of the casing 101, and the locking piece 109 is restricted to the concave portion 108 of the casing 101. The opening 103 is closed in a state where movement in the direction orthogonal to the arrow AB direction is restricted.

JP 2003-198158 (paragraph [0002], FIG. 7)

  In the conventional lock structure as described above, the lid 105 is attached to the opening 103 by sliding in the arrow A direction. Since it does not engage in the recessed part 108, there existed a problem that usability was bad that the cover body 105 could not be attached to the opening part 103. FIG.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a lid lock structure with improved usability.

  In order to achieve this object, the present invention relates to a housing provided with an opening and first and second engaging portions, and to the first and second engaging portions by moving in one direction. And a lid body that has first and second engaged portions to be joined and closes the opening, and the first engaged portion engages with the first engaging portion to thereby close the lid. The movement of the body in the direction opposite to the one direction is restricted, and the second engaged portion engages with the second engaging portion, whereby the lid moves in the direction perpendicular to the one direction. The lid locking structure is controlled so that the second engaging portion is formed to be elastically deformable, and the second engaging portion and the second engaged portion are connected to the lid body. Inclined surfaces that come into contact with each other by engaging the first engaged portion with the first engaging portion in a state where the first engaging portion is inclined with respect to the one direction. Provided, the second engaged portion to the second engagement portion elastically deformed by the cam action of these inclined surfaces is to engage.

  According to the present invention, in the above invention, a stopper is provided that restricts the amount of elastic deformation of the second engaging portion within an allowable range.

  According to the present invention, in any one of the above inventions, engagement pieces are provided at both ends in the width direction of the lid, and the first and second engaging portions are provided on the casing and the first and second engaging portions. An engagement hole into which the engagement piece is engaged by engagement of the engaged portion is provided.

  According to the present invention, even if the angle of the moving direction of the lid is changed, the lid can be attached to the opening of the housing, so that the usability is improved.

  According to one of the inventions, the second engaging portion is not deformed or broken.

  According to one of the inventions, the lid is positioned in the width direction and locked to the housing in a state where movement in the width direction is restricted.

It is a top view of the housing which employ | adopted the lock structure of the cover concerning this invention. FIG. 4A is a perspective view showing a state in which the lid is removed in the housing employing the lid locking structure according to the present invention, and FIG. 4B is a perspective view of the lid viewed from the back side. . It is the III-III sectional view taken on the line in FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1, in which FIG. 1A shows a state immediately before the lid is attached, and FIG. 1B shows a state where the lid is attached. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1 and shows a state where the lid is attached by being inclined by an angle α from the horizontal direction. It is sectional drawing of the principal part which shows the lock structure of the conventional lid.

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

  As shown in FIG. 2, the housing of the electronic apparatus denoted by reference numeral 1 as a whole is formed with a lower case 2 having an opening at the top, a shorter dimension in the direction of arrows AB than the lower case 2, and a lower case and an arrow B. An upper case 3 having a direction opened, and the cases 2 and 3 are joined together via a protective cover 20 to be described later so that the opening ends of the cases 2 and 3 abut each other. ing. In the case 1 thus formed, an opening 4 is formed between the lower case 2 and the upper case 3, and the opening 4 is closed by a lid 5. That is, the housing 1 is hermetically sealed by the lower case 2, the upper case 3, and the lid 5.

  On the back surface of the upper plate 6 of the upper case 3, an engagement projection 8 is provided at the center of the opening 4 side so as to engage an elastic engagement piece 15 described later as shown in FIG. Yes.

  As shown in FIG. 2 (A), the lid 5 is formed in a box shape having an opening in the lower and arrow A directions by the upper plate 11, the side plates 12, 13 and the front plate 14. At the center of the end of the plate 11 on the arrow A direction side, a claw portion 16 that is engaged with the engagement protrusion 8 is formed at the tip portion, and the elastically deformable engaged portion as a first engaged portion. The piece 15 protrudes in the direction of arrow A.

  In addition, rectangular shapes formed on the lower ends of the side plate 12 and the front plate 14 of the lid 5 and the lower ends of the side plate 13 and the front plate 14 so as to straddle each other as shown in FIG. Engagement pieces 17 and 17 are provided as second engaged parts. As shown in FIG. 4, an inclined surface 18 that abuts an inclined surface 27 of an engaging piece 25 described later is formed at the tip of the engaged piece 17. Further, in the end portions of the side plates 12 and 13 of the lid 5 in the direction of arrow A, the engagement pieces 19 and 19 engaged in the engagement holes 30 and 30 described later are arranged in the direction of arrow A so as to face each other. Projected to

  In FIG. 2A, reference numeral 20 denotes a protective cover fixed to the bottom of the lower case 2 with bolts. Electronic components and the like (not shown) mounted on a printed circuit board attached to the lower case 2 are shown. It is something to cover. Between the protective cover 20 and the lower case 2, a dry cell storage unit 22 for storing a dry cell is formed.

  Engaging pieces 25, 25 that are elastically deformable as second engaging portions are erected at both ends of the bottom portion of the lower case 2 in the direction of the arrow B. Is provided with a claw portion 26 that engages with the above-described engaged piece 17 having the inclined surface 27 at the top. Reference numerals 29 and 29 are stoppers provided integrally with the protective cover 20 and are provided at a slight distance from the elastic engagement pieces 25 and 25 in the direction of the arrow A as shown in FIG.

  As shown in FIG. 3, the engaging pieces 19, 19 described above are fitted between the ends in the arrow B direction of both side parts 7, 7 of the upper case 3 and both side parts 21, 21 of the protective cover 20. Engaging holes 30, 30 are formed.

  Next, the operation of closing the opening 4 with the lid 5 will be described with reference to FIGS. 2, 4, and 5 in the lock structure of the lid configured as described above. In FIG. 2, the lower end surface of the lid 5 is abutted against the upper end surface corresponding to the opening 4 of the lower case 2, and the lid 5 is slid horizontally in the direction of arrow A as shown in FIG. Let When the claw portion 16 of the engaged piece 15 of the lid 5 comes into contact with the engaging projection 8, the engaged piece 15 is elastically deformed as shown in FIG. The lid body 5 is restricted from moving in the B direction opposite to the arrow A direction.

  At the same time, the engaged piece 17 of the lid 5 is engaged with the claw portion 26 of the engaging piece 25, so that the lid 5 is restricted from moving in the direction orthogonal to the arrow AB direction, that is, upward. The opening 4 is closed by the body 5. At this time, the engaging piece 19 of the lid 5 is engaged with the engaging hole 30, so that the lid 5 is positioned in the width direction and the movement in the width direction is restricted. Locked to.

  Here, as shown in FIG. 5, when the lid body 5 is slid in the state inclined by the angle α from the arrow A direction instead of the horizontal direction toward the arrow A direction, the engaged piece 15 is elastically deformed. However, when the claw portion 16 is engaged with the engaging protrusion 8, the inclined surface 18 of the engaged piece 17 contacts the inclined surface 27 of the engaging piece 25. Therefore, next, by pressing the lid 5 downward in the figure with the claw portion 16 engaged with the engaging protrusion 8, the engaging piece 25 is moved to the arrow A by the cam action of the inclined surfaces 18 and 27. 4B, the engagement piece 17 is engaged with the claw portion 26 of the engagement piece 25, and the opening 4 is closed by the lid 5. As shown in FIG.

  When the engagement piece 25 is elastically deformed in the direction of the arrow A, a stopper 29 for supporting the elastic engagement piece 25 is provided so that the elastic deformation amount of the engagement piece 25 does not exceed an allowable amount. The deformation and breakage of the combined piece 25 can be prevented.

  Thus, the opening 4 can be closed not only by moving the lid 5 in the direction of the arrow A but also by moving the lid 5 in an inclined state with respect to the direction of the arrow A. For this reason, even if the housing 1 is attached in a state where the lower case 2 is in contact with the wall or the like of the house, and the lid 5 is difficult to move in the direction of the arrow A in space, the opening 4 is formed. Since it can be easily closed by the lid 5, the usability is improved.

  DESCRIPTION OF SYMBOLS 1 ... Housing, 4 ... Opening part, 5 ... Cover, 8 ... Engagement protrusion (1st engagement part), 15 ... Engagement piece (1st engagement part), 17 ... Engagement piece (Second engaged portion), 18 ... inclined surface, 19 ... engaging piece, 25 ... engaging piece (second engaging portion), 26 ... claw portion, 27 ... inclined surface, 29 ... stopper, 30 ... entrance hole.

Claims (3)

A housing provided with an opening and first and second engaging portions;
A lid having first and second engaged portions that engage with the first and second engaging portions by moving in one direction, and closing the opening.
When the first engaged portion engages with the first engaging portion, the movement of the lid in the direction opposite to the one direction is restricted, and the second engaged portion becomes the second A lid locking structure in which movement of the lid in a direction orthogonal to the one direction is restricted by engaging with the engaging portion of the lid,
The second engagement portion is formed so as to be elastically deformable, and the second engagement portion and the second engaged portion have the lid body inclined with respect to the one direction. By engaging the first engaged portion with the first engaging portion, inclined surfaces that contact each other are provided, and the second engaging portion that is elastically deformed by the cam action of these inclined surfaces is provided with the second engaging portion. 2. A lid lock structure in which two engaged parts are engaged.   The lid locking structure according to claim 1, further comprising a stopper that regulates an elastic deformation amount of the second engaging portion within an allowable range.   Engagement pieces are provided at both ends in the width direction of the lid, and the engagement pieces are engaged with the first and second engaged portions of the casing by the first and second engaged portions. The locking structure for the lid according to claim 1, further comprising an engaging hole into which the engaging member is engaged.

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