JPS60216196A - Guide apparatus for locking firearm locked by crank - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION In this invention, the inner surface of the lock is machined, the shape of the lock is mainly cylindrical, and the inside of the lock is
Concerning the interior housing of a crank-locked firearm lock, achieved by a guide piece in the frame of the lock and an associated L7'c guide surface.

For the operation of the four arms of such a firearm, the locking shoulder that falls on the front part of the IrFK muzzle and the correspondence of the frame must be
l"?, for coordinated operation, during the axial movement of the primarily cylindrical lock, until only at the end of this movement the lock is rotated by a crank extending laterally of it. It is important, to lock or stay in the same position.

In known solutions, guiding of the lock was achieved by machining axial grooves into the surface of the lock into which projections in the frame of the lock fit. This protrusion can also be used as a spring-loaded lever, for example. However, until now, the sensitivity of the lock's movement was based on the material properties of the longitudinal sliding surface and the surface quality.6 If the surface quality is poor, the lock's movement will not be smooth; Good surfaces are expensive to create. In addition to this, lock mountings with locking shavings formed on the inner surface of the outer surface of the lock frame may be used to rotate the lock in order to allow it to be pushed in after the lock has been removed. It is always necessary to find the correct position of the lever.

The object of the invention is to eliminate these difficulties, to improve the sensitivity of the lock movement, and to make it easier to roughly locate the exact initial position of the lock reservoir.

To achieve this object, the guide device according to the present invention is such that the guide piece in the frame of the lock is not a roller mounted by a bearing on a shaft transverse to the axial direction of the lock, and the shape of the outer periphery of the roller is It is characterized in that it corresponds to the shape of the guide surface machined on the surface of the lock.

One preferred implementation is that the roller has a cylindrical shape and the guide surface in the lock is a flat segment surface. Machining of such a surface and manufacturing of the roller is extremely inexpensive and simple. , the movement of the lock is smooth and smooth.

A practical example of the present invention will be described in detail below with reference to the drawings.

In the drawings, the frame of the firearm lock is designated by l. The firearm lock moves axially within the frame. The front part of the lock has an operating and
There is a p-tsuking shoulder, but this debris is not shown.
Similarly, the rear part of the lock is not shown.

According to the invention, in order to guide the lock, there is a roller J in the frame I, the axis of which is transverse to the lock. The roller 3 contacts the corresponding guide S in the lock λ. This surface is a flat partial surface (segment surface) in the %#/ figure. There is a notch 6 on the edge of the surface 5, and according to this notch A, when the lock is pushed in until the notch 6 is positioned straight against the roller 3,
Rotsukuko can rotate without being disturbed by Roller J.

#-The figure shows the shape of the guide roller. 82
According to figure (a), the outer surface of the roller 3 is slightly convex and reeded.
Correspondingly, the inside of the guide in the lock is concave.

, (a) in FIG. 1 corresponds to the bowl in FIG. 1, and the guide roller 3 is cylindrical. The guide roller 3 shown in Figure (C) has a cylindrical shape except that it has a ring-shaped protrusion in the center.
A groove corresponding to this projection is provided in the guide surface of the lock.

The rollers 1tII4I can be positioned diagonally on the side of the lock below the centerline as shown in the drawings.6 Although the bearings of roller 3 in the drawings are lateral bearings, it is also possible to implement them as roller bearings. is also clear. It is also clear that other embodiments of guide rollers than those shown can be considered without departing from the spirit of the invention.

[Brief explanation of the drawing]

FIG. 1 is an illustrative view, partially in cross section, of a firearm in which the lock is fully equipped with a perforated interior according to the present invention. In FIG. 1, (&), (b) and (c) represent the shapes of the guide rollers, respectively. In the drawings, l indicates a frame, ko indicates a lock, 3 indicates a guide piece (roller), DA indicates a roller axis, and 5 indicates a guide surface. Procedural amendment (method) April 11, 1985 Mr. Commissioner of the Japan Patent Office 1, Indication of the case 1985 Patent Application No. 48487 3, Person making the amendment Relationship to the case Patent applicant Finland ■, Rihimeki Nis. F-11100
゜Address: P, O, Boch 8.8゜゜Name: Oi Sakoteika Kenei Bii 4, Agent〒105 Address: Bussan Building Annex, 1-1-15 Nishi-Shinbashi, Minato-ku, Tokyo Telephone: (591) 0261 Engraving of drawings No changes to content

Claims (1)

[Claims] l A lock for a crank-locked firearm in which a guide surface is machined on the surface of the cylindrical lock, and this guide rkJ, together with a guide piece in the frame of the lock, achieves the guidance of the lock. In the guide device for the lock, the guide piece in the frame of the lock is a roller mounted by a bearing on a shaft oriented transversely to the axial direction of the lock. The guiding device is characterized by being compatible with the shape of the guiding surface. The guide device according to claim 1, wherein the roller is cylindrical and the guide surface of the lock is a flat partial surface. 3. The guide device according to Claim #1, wherein the outer periphery of the roller has a convex shape, and the guide surface of the lock is a concave surface in the axial direction. Claim #1: Each roller is substantially tubular in shape and has a ring-shaped projection on its outer periphery, which projection fits into a corresponding groove in the guide surface of the lock. Excellent internal fI/1. . From claim 1, the shaft of the left roller is scratch resistant diagonally below the horizontal centerline of the lock and laterally from the vertical centerline of the lock, when viewed in the longitudinal direction of the firearm. The bag-inner cylinder according to any one of item 4. The guide device according to any one of claims 1 to 5, wherein the roller is attached to the shaft by a sliding bearing.