Slide arresting device at a handgun

An arrresting pin having a recessed circumferential section is inserted in the frame of the gun. A pin locking spring is biased into the mentioned recess. This locking spring prevents the arresting pin from falling out of the frame. A simple rotation of the arresting pin moves the locking spring out of the way, allowing an easy disassembling. The arresting pin includes further a planar jacket section, co-operating with a corresponding abutment surface at the slide for limiting the travel during the recoil of the slide.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The present invention relates to a slide arresting device at a handgun 
having a slide supported and guided for a longitudinal movement along the 
frame of the gun. 
2. Description of the Prior Art 
The slide of such guns is held and guided on the frame for longitudinal 
movement thereupon and against a movement perpendicular thereto by guide 
rails formed at the slide and at the frame. The horizontal, backwards 
directed recoil and loading movement of the slide is limited generally by 
an abutment mounted to the frame. When this abutment is removed from the 
frame, the slide can be pulled completely backwards and thereafter lifted 
off the frame which, as generally known, is the procedure for 
disassembling such a gun. 
The generally known abutments mounted to the frame of pistols are of a 
rather intrinsic and accordingly relatively expensive nature, adding to 
the overall production costs of such guns. 
SUMMARY OF THE INVENTION 
It is, therefore, a general object of the present invention to provide a 
slide arresting device at a handgun, which is simple in design, reliable 
in operation and easy to manipulate. 
A further object of the present invention is to provide a slide arresting 
device at a handgun, which includes an elongate arresting pin having a 
recessed circumferential section and inserted in a bore arrangement of the 
frame, and an elongate flexible pin-locking spring supported on the frame 
and biassed into the recessed circumferential section, locking the 
elongate arresting pin against a longitudinal and rotational movement 
relative to the frame. 
A still further object of the invention is to provide a slide arresting 
device having an elongate arresting pin which includes at one end a 
planar, flat head and at the opposite face end a chamfered section, and in 
which the bottom of the recessed section extends at least approximately 
tangentially relative to the circumference of the arresting pin. 
A further object is to provide a slide arresting device, in which the 
elongate arresting pin includes a planar jacket section which in the 
inserted and locked state of the arresting pin is aligned with and faces 
an abutment surface at the slide of the gun, whereby the extent of the 
recoil movement of the slide relative to the frame of the gun is limited.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
FIG. 1 illustrates a section through a handgun for the purpose of a mere 
and general illustration thereof. Only those structural members are 
identified by reference numerals and described hereinafter that are of 
importance to understand the present invention. The remaining main parts 
are generally known to the person skilled in the art. 
An arresting pin 1 is inserted in a bore arrangement formed in the frame 5 
of the gun, and consisting of two bores 7 and 8. This arresting pin 1 
includes a planar, flat head 9, resting against a surface section of the 
frame 5 at the bore 7. At its end opposite to the planar, flat head 9, the 
arresting pin 1 has a recessed circumferential section 6, of which the 
bottom extends at least approximately tangential relative to the 
circumference of the pin. The face end of the arresting pin 1 is, 
furthermore, provided with a chamfered section 10 as specifically 
illustrated in FIG. 3. 
Furthermore, an approximately "L"-shaped pin locking spring 2 is provided. 
The longer leg 13 of the "L"-shape, see hereto specifically FIG. 1, rests 
in the mentioned recessed circumferential section 6 of the arresting pin 
1, and ends in a recess 14 in the frame 5. The shorter leg 15 of the 
"L"-shape abuts bluntly an area of the frame 5. Furthermore, a 
spring-retaining pin 3 is held in the frame 5 and lies, based on the 
illustration of FIG. 1, on top of the longer leg 13 of the pin locking 
spring 2. The location of this spring-retaining pin 3 and the shape of the 
pin locking spring 2 are selected such that the spring 2 is elastically 
urged and held in the recess 6 of the arresting pin 1. 
The arresting pin 1 includes, furthermore, a planar jacket section 11, 
facing an abutment surface 12 at the slide 4. This planar jacket section 
11 acts accordingly to limit the backward recoil movement of the slide 4 
after a shot has been fired or a loading movement is being made, during 
which, as is generally known, the slide 4 is pulled backwards on the frame 
5 of the gun. 
The Figures illustrate the arresting pin 1, ie the slide arresting device 
together with the gun in the assembled state. 
In order now to remove the arresting pin 1 such that the slide 4 can be 
pulled back and off the frame 5, the arresting pin 1 is gripped by eg an 
appropriate tool at its planar, flat head 9 and rotated by eg 90 or 
180.degree.. Conclusively, the section of the pin locking spring 2, which 
has been lying in the recessed, circumferential section 16, is sort of 
lifted such that it comes to lie on a circumferential point of the 
arresting pin 1 remote from the recessed circumferential section, eg at 
the point identified in FIG. 3 by the reference numeral 16. Accordingly, 
the arresting pin 1 can be pulled out of the frame 5 of the gun, such to 
allow the above mentioned disassembling by initially pulling the slide 4 
back. 
If for the assembling of the gun the arresting pin 1 is to be re-inserted 
through the bores 7 and 8 of the frame 5, the longer leg 13 of the pin 
locking spring 2 quite obviously blocks the bore 8. In order to move this 
spring 2 out of the way, the arresting pin 1 is equipped with the earlier 
mentioned chamfered section 10, over which the spring 2 can slide upwards 
when the pin 1 is inserted and thereafter snap into the recess 16. 
Accordingly, a quite simple structure is provided for arresting the slide 
on the frame of a handgun, which at the same time forms an abutment, 
limiting the travel during the recoil or loading movement of the slide 4. 
While there is shown and described a present preferred embodiment of the 
invention, it is to be distinctly understood that the invention is not 
limited thereto, but may be otherwise variously embodied and practiced 
within the scope of the following claims.