Patent ID: 8567654
Filing Date: 2013-10-29
Classification: B25C

Abstract:
1. A locking mechanism for a nail gun, comprising: a guide plate and a cover plate connected with each other and an drive track formed between the guide plate and the cover plate, the guide plate having a nail supplying slot connected to the drive track and a side slot connected with the nail supplying slot, the cover plate having a containing slot connected to the drive track; a slider element, slidably mounted to a side of the guide plate, the slider element having a stopper element formed at a side thereof corresponding to the side slot, the stopper element being operative to move with the slider element along a shooting direction of nail to enter into the side slot; a magazine formed at a side of the guide plate to contain a plurality of nails; a nail pusher having a first engaging portion, the nail pusher slideably formed in the magazine at a position facing the nail supplying slot, and a first spring being placed between the nail pusher and an interior wall of the magazine, so as to impose resilient force to drive the nail pusher towards the nail supplying slot, such that the nails are pushed one by one into the drive track; a lockout element slideably formed in the magazine at a position facing the side slot, and a second spring being placed between the lockout element and an interior wall of the magazine, so to impose resilient force to drive the lockout element towards the side slot, the lockout element further having a second engaging portion engaged with the first engaging portion, so as to restrict sliding movement of the lockout element towards the side slot at a side of the nail pusher; and a pushing arm formed at a side of the lockout element and extending towards a corresponding side of the nail slot, wherein the pushing arm pushes the nails into the drive track with the movement of the lockout element to detect whether there's nail in the driving track and enters into the containing slot when the nails are exhausted, such that the lockout element is driven to enter into the side slot to block the stopper element.