JPS63186563U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a front view of an electric screwdriver with a screw supply function according to the present invention, with a portion thereof broken away and another portion shown as a cross section, and FIG. 2 is a left side view of FIG. 1. FIG. 3 is a plan view of one of the constituent members of the embodiment of FIG. 1, that is, the lower non-rotating member, and FIG. 5 is a plan view of one of the components of the embodiment shown in FIG. 1, that is, the upper non-rotating member; FIG. 6 is a plan view of one of the components of the embodiment of FIG. FIGS. 7A to 7E are enlarged views showing details of the constituent members of the illustrated embodiment, that is, the inner tube member and the outer tube member, and FIGS. 7A to 7E are explanatory views for explaining the operation of the electric screwdriver with a screw supply function according to the present invention. be. 10... Cylindrical housing, 12... Electric motor, 14... Reduction gear mechanism, 16... Bit stem, 22... Inner tube member, 24... Outer tube member,
26... Lower non-rotating member (plate member), 30... Intermediate rotating member (annular plate member), 32... Upper non-rotating member (annular plate member), 36... Spool shaped member, 42... Screw supply Case member, 46...Screw accommodation hole, 62...Screw guide tube, 64...Tip of screw guide tube 62.

Claims (1)

[Claims for Utility Model Registration] 1. A screw supply case member is provided that is slidably and rotatably mounted around the bit stem of an electric screwdriver, and the screw supply case member has a plurality of screw receiving holes that are arranged around the bit stem of the electric screwdriver. a screw take-out mechanism formed parallel to and at equal intervals around the axis of the bit, and further slidably mounted along the bit stem at a lower portion of the screw supply case member; and the screw take-out mechanism. and a screw guide member extending from the screwdriver beyond the bit of the electric screwdriver,
The screw guide member is curved so that its distal end portion is axially aligned with the bit, and an opening is provided above the distal end portion of the screw guide member to allow the bit to enter the distal end portion. is formed, and an assembly including the screw supply case member, the screw takeout mechanism, and the screw guide member is configured to relatively move between a lower position and an upper position along the bit stem. and when the assembly is placed in the lower position, the bit tip is in a non-screwing position, and when the assembly is placed in the upper position, the bit tip is in a screwing position, further comprising resilient spring means for biasing the assembly to the lower position; and a predetermined position of the screw supply case member when the assembly is moved from the lower position to the upper position against the resilient spring means. An electric screwdriver with a screw supply function, comprising a cam means for operating the screw extraction mechanism to supply the screw to the screw guide member from the screw accommodation hole. 2 Utility Model Registration Scope of Claims In the electric screwdriver with a screw supply function according to claim 1, the screw take-out mechanism includes an upper non-rotating member supported in a non-rotating state with respect to the bit stem; a lower rotating member supported in a rotational state; an intermediate rotating member disposed between the upper non-rotating member and the lower non-rotating part and supported so as to be rotatable about the axis of the bit stem; The upper non-rotating member is formed with a screw receiving hole that can be aligned with one of the screw receiving holes of the screw supply case member, and the lower non-rotating member is provided with a screw in the screw guiding member. a screw ejection hole is formed in the intermediate rotating member for feeding out a screw, and a screw ejection hole is formed in the intermediate rotating member, and when the assembly is placed in the lower position, the screw ejecting hole in the intermediate rotating member is formed in the lower non-rotating member. When the assembly is moved from the lower position to the upper position, the intermediate rotating member is rotated by the cam means to remove the screw from the intermediate rotating member. An electric screwdriver with a screw feeding function, wherein the hole is aligned with the screw receiving hole of the upper non-rotating member.