Locking mechanism of cover and open/close device

Abstract

The locking mechanism locks a lid 3 that is turnably pivoted to a substrate 2 via a connecting piece 33B and turnably switched to an opening position for releasing the opening of the substrate 2 and a closing position, in a releasable manner at the closing position via the striker 52 and the latch device 6. The basic substance 2 comprises the latch device 6 mounted in correspondence with the coupling strip 33B, and an arm 5 turnably pivoted in correspondence with the latch device 6 and the coupling strip 33B. The arm 5, comprising the striker 52 locked and unlocked on the latch device 6, is moved to be coupled to the coupling strip 33B when the lid 3 is moved turnably via the coupling strip 33B to approach the closed position, then is further moved turnably in interlocking move by the approach of the lid 3, thus enables the striker 52 to be locked to the latch device 6.

Description

technical field [0001] The present invention relates to a lock mechanism and a switch device for a lid that locks the lid with respect to a box-shaped main body. In addition, in this specification, a "box-shaped main body" includes various containers, cases, boxes, etc., and a "cover body" is a term in a broad sense including doors, shelters, and the like. Background technique [0002] Figure 14 and Figure 15 Shown is a conventional switch device and lock mechanism suitable for a rotary cover. Figure 14 The switchgear of the patent document Japanese Patent Laying-Open No. 8-184237 (page 3-page 5, Figure 1-Figure 7 ), the cover body 71 is pivotally supported on the box-shaped main body 70 by means of the connecting piece 72 and can be rotated, and in addition, the connecting piece 72 is connected to the The pivot 72a of the main body 70 is used as a fulcrum to switch between the open position for opening the opening of the main body 70 and the closing position for closi...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned conventional lock mechanism, what kind of mechanism is installed between the box-shaped main body and the cover body has been considered in various ways, but it is still not fully satisfactory from the following points

that is, Figure 14 In the main lock mechanism of the present invention, in the open position of the cover body 71, the striker lock device 74 is exposed from the top of the box-shaped main body 70 so that the appearance is not good, and dust and the like are easy to adhere to, and the latch 73 of the cover body 71 is also an obstacle.

As for the action, for example, when the fixing is released and the cover body 71 is rotated to switch from the closed position to the open position, since the latch 73 is pulled out from the strike lock device 74 while taking the shaft 72a as the fulcrum to move in an arc shape, it is not necessary for the fixing or The pulling of the striker lock part holding the latch 73 is likely to cause malfunction

Figure 15 Although the locking mechanism 85 is arranged on the arm portion 84 at the bottom of the cover 81 and is not easily seen, the above-mentioned appearance is improved. In order to ensure that the locking device 85 and the arm The evacuation position of the part 84, as shown in the figure, has to form a hollow part 86 retracted into the inside on one side of the box-shaped main body 80, which makes the volume in the main body smaller, and the rotation angle of the cover body 71 is also easily restricted.

In addition, when the cover body 81 is to be accommodated inside the box-shaped main body 80 when it is in the open position, this structure cannot be adopted.

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