JP2009127732A - Securing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of influences to other electronic devices in a securing structure securing a securing member from two directions, wherein securing holes are respectively formed in tabular parts of both securing members, securing protrusions corresponding to each securing hole are provided in a body, and since each securing protrusion of the body is fit in each securing hole of each tabular part from respective directions in both securing members, the tabular parts of both securing members are respectively individual and do not overlap, and inhibiting force of noise generated from electronic components in the body is weak. <P>SOLUTION: It is characterized by that the securing holes are formed in respective tabular parts of both securing members so as to fit on one securing protrusion provided in the body, and by fitting both securing holes on the securing protrusion, securing is carried out in an overlapping state of respective tabular parts of both securing members. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention has a structure in which a main body of an electronic device casing and a locking part such as a lid thereof are combined, and a locking protrusion provided on the main body side is fitted with a locking hole provided on the locking part side so as to be integrated. The present invention relates to a locking structure.

As shown in FIGS. 11 and 12, the conventional locking structure with the locking protrusion and the locking hole includes a cross-shaped locking protrusion 101 provided on the main body (or part) 100 and a locking structure as shown in FIG. It comprises a cross-shaped locking hole 103 that locks into the locking projection 101 provided on the plate-like portion of the locking member 102.
The locking protrusion 101 is formed with a slope 101A on the protrusion 101a in the fitting direction of the locking member 102, and the locking protrusion 101 is formed on the plate-like portion of the locking member 102 as shown in FIG. The provided locking hole 103 is fitted and locked by moving it so as to slide using the elasticity of the plate-like portion.

In this locked state, as shown in FIG. 13, the ridgeline 103A of the locking hole 103 is locked to the protruding surface 101A of the locking projection 101, and the ridgeline 103B of the locking hole 103 is locked to the protruding surface 101B of the locking projection 101. The ridgeline 103C of the locking hole 103 is locked to the projection surface 101C of the locking projection 101, and the ridgeline 103D of the locking hole 103 is locked to the projection surface 101D of the locking projection 101, so that It can be locked in four directions (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2005-54948

  However, in the conventional technology described above, as shown in FIG. 15, when the locking member 102 is fitted from both sides (two directions) facing the main body 100, the plate-like portions of both locking members are respectively provided. A cross-shaped locking hole 103 is formed, and a cross-shaped locking projection 101 corresponding to each locking hole 103 is provided on the main body, and the locking holes 103 of both locking members are respectively connected to the locking holes 103. Each locking member 102 is locked to the main body 100 by being fitted to the locking protrusion 101 of the main body from the direction.

Therefore, the main body must be provided with corresponding locking projections in the respective locking holes of the two locking members, and since the locking projections have a cross shape, the space is large. There is a problem of becoming.
From the above, such a structure is harmful to the simplification of the product shape and the size reduction of the product, and when electrical noise is generated inside the main body, the plate-like portion of the locking member Therefore, the restraining force is weak and the influence on other electronic devices becomes a problem.

  An object of the present invention is to solve such a problem, and the locking holes of both plate-like portions are locked to one locking projection of the main body so that the plate-like portions of both locking members overlap each other. For the purpose.

  Therefore, the present invention relates to a locking structure in which a locking member formed in a plate-like portion is engaged with a locking protrusion provided on the main body by fitting a locking hole formed in the plate-like portion from two directions. By forming locking holes in the respective plate-like portions of both locking members so as to fit into the locking projections, and fitting the both locking holes into the locking projections, the respective plate-like portions of both locking members. It locks in the state which overlapped.

In the present invention thus configured, the plate-like portions of the locking member can be overlapped by fitting and locking the locking holes of the locking member from two directions to one locking projection. It is possible to suppress electric noise generated inside the main body, and the influence on other electronic devices can be suppressed.
Further, since the locking holes of the both locking members are locked by one locking projection, the locking position becomes one and the product can be reduced in size.

  Embodiments according to the present invention will be described below with reference to the drawings.

1 is an explanatory view showing an embodiment, FIG. 2 is a front explanatory view of a locking projection, and FIG. 3 is a side explanatory view of the locking projection.
Reference numeral 1 denotes a main body (concept that includes a main body, parts, and the like). Reference numeral 2 denotes a locking protrusion provided on the main body 1, and a horizontal upper portion 3 and a vertical portion so that the planar shape forms a substantially T shape. It consists of directional legs 4.

On the upper portion 3 of the locking projection 2, a receiving slope 6 is formed at the front end portion, leaving a flat portion 5 at the rear portion, and inclined downward from above. In addition, the leg portion 4 is formed with a slope 7 for receiving which is inclined from the lower side toward the upper side at the front end portion.
Reference numeral 9 denotes a locking member that locks to the main body 1, and a T-shaped locking that is just fit to the outer shape of the locking protrusion 2 on the plate-like portion 10 that forms the side portion of the locking member 9. A hole 11 is formed. The locking hole 11 may have a T-shape having a size larger than the outer shape of the locking projection 2 as shown in FIG.

  Reference numeral 12 denotes a locking member that is also locked to the main body 1. The width of the upper portion 3 of the locking protrusion 2, the upper portion 3, and the leg are formed on the plate-like portion 13 that forms the side portion of the locking member 12. A rectangular locking hole 14 having a height up to the portion 4 and having a size that fits exactly into the locking protrusion 2 is formed. The locking hole 14 may also have a rectangular shape having a size larger than the outer shape of the locking projection 2 as shown in FIG. Further, like the locking hole 11 of the locking member 9, as shown in FIG.

The height of the locking projection 2 is a dimension equal to or greater than the thickness at which the plate-like portions 10 and 13 of the two locking members 9 and 12 overlap each other. The width in the depth direction of the flat portion 5 of the locking projection 2 is substantially the same as the thickness of the locking member 12 plate-like portion 13, and the width in the depth direction of the inclined surface 6 of the locking projection 2 is the locking member. 9 is substantially the same as the thickness of the plate-like portion 10.
The relationship between the locking members 9 and 12 and the main body 1 is a concept such as an upper cover and a lower cover attached to the main body.

The locking action of the configuration described above will be described.
First, as shown in FIGS. 1 and 5, the engagement hole 14 provided in the plate-like portion 13 of the engagement member 12 is moved by sliding the slope 7 using the elasticity of the plate-like portion 13. Fit into the stop projection 2. At this time, the locking hole 14 can be smoothly advanced by the receiving inclined surface 7 formed on the locking protrusion 2 and can be fitted and locked to the locking protrusion 2.
In this locked state, as shown in FIG. 5, the ridge line 14 </ b> A of the locking hole 14 is locked to the flat portion 5 of the locking protrusion 2, and the ridge line 14 </ b> B of the locking hole 14 is to the protruding side surface 2 </ b> B of the locking protrusion 2. The ridge line 14 </ b> C of the locking hole 14 can be locked to the protrusion side surface 2 </ b> C of the locking protrusion 2, and can be locked in the upper left and right directions. Further, the locking member 12 is locked upward when the locking member 12 comes into contact with the main body 1 as shown in FIG. When the locking hole 14 has a T shape, the ridge line 14 </ b> D of the locking hole 14 is locked to the upper portion 3 of the locking protrusion 2.

  Next, as shown in FIG. 1 and FIG. 6, the engaging hole 11 provided in the plate-like portion 10 of the engaging member 9 is moved by sliding the slope 6 using the elasticity of the plate-like portion. As shown in FIGS. 9 and 10, the plate-like portion 10 of the locking member 9 can be overlapped and locked on the plate-like portion 13 of the locking member 12 as shown in FIGS. At this time, the locking hole 11 can be smoothly advanced by the receiving inclined surface 6 formed on the locking projection 2 to be fitted and locked to the locking projection 2. In this case, the inclined surface 6 is formed through the flat surface portion 5, but since the plate-like portion 13 of the locking member 12 is fitted in advance, the thickness 6 hits the flat surface portion 5 so as to be in the way. The plate-like portion 10 can be slid on the slope 6 without any problem.

  In this locked state, as shown in FIG. 6, the ridge line 11B of the locking hole 11 is locked to the upper lower surface 2B of the locking protrusion 2, and the ridge line 11C of the locking hole 11 is the upper part 3 of the locking protrusion 2 and the leg. The ridge line 11D of the locking hole 11 is engaged with the upper side 3 of the locking projection 2 and the protruding side surface 2D of the leg 4 so that it is engaged with the three directions of the lower left and right directions. Can be stopped. Further, the locking member 9 is locked downward when the locking member 9 contacts the main body 1 as shown in FIG.

As described above, the locking projections are formed with receiving slopes on opposite sides of the locking projection so that the locking holes of the locking member can be fitted from both sides facing each other. The outer shape is not limited to the T shape, and any shape may be used as long as it has a feature in that it is locked by the ridge line of the hole and the locking protrusion and can satisfy the feature.
As described above, the plate-like portion of the locking member can be overlapped by fitting the locking holes of the locking member from the facing direction to the single locking projection, thereby locking the main body Even if electrical noise occurs inside, the noise suppression power is great, and the influence on other electronic devices can be suppressed.

  Further, since the locking holes of both locking members are locked to one locking projection, the number of locking points becomes one and the product can be downsized.

Explanatory drawing which shows an Example Front view of locking projection Side view of locking projection Perspective view of another shape of locking member Explanatory drawing of the latching state of one latching hole and latching protrusion Explanatory drawing of the latching state of the other latching hole and latching protrusion Explanatory drawing of the locked state with the locking projection when the locking hole is enlarged Explanatory drawing of the locked state with the locking projection when the locking hole is enlarged Front explanatory view of the state where both locking members are locked Side explanatory drawing of the state which locked both locking members Front view of conventional locking projection Side view of conventional locking projection Explanatory drawing of the locked state of the locking hole and the locking projection Explanatory drawing of the state in which the locking hole is locked to the locking projection Explanatory drawing of locking hole and locking projection

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Locking protrusion 3 Upper part 4 Leg part 5 Plane part 6 Slope 7 Slope 9 Locking member 10 Plate-shaped part 11 Locking hole 12 Locking member 13 Plate-shaped part 14 Locking hole

Claims (5)

In the locking structure in which the locking protrusions provided on the main body are locked by fitting the locking holes formed in the plate-like portions of the locking members from the two directions,
The locking holes are formed in the respective plate-like portions of the two locking members so as to be fitted into one locking protrusion provided in the main body, and both locking holes are fitted into the locking protrusions, thereby The locking structure characterized by locking in the state which each plate-shaped part of the member overlapped. 2. The locking structure according to claim 1, wherein slopes for receiving the locking holes are formed at respective end portions in the direction in which the locking members of the locking protrusions are fitted. In Claim 2, the flat part which the latching hole of one latching member latches is formed in one end part of the latching protrusion with the slope, and only the slope is formed in the other end part of the latching protrusion. A locking structure characterized by being formed. The locking structure according to claim 1, wherein the locking protrusion includes an upper portion and a leg portion in which the planar shape of the locking protrusion is substantially T-shaped. In claim 1, the locking holes provided in the overlapping plate-like portions of the both locking members are rectangular in the overlapping lower locking holes, and the overlapping upper locking holes are generally T-shaped. Characteristic locking structure.