US 3740885 A
Description (OCR text may contain errors)
nited States Patent 1191 Leaman June 26, 1973 [5 TOY PISTOLS 2,866,287 12 1958 Ryan ..42/58 2,977,950 4 19 1 R 1 Graham Leamancmsskeyst 3,158,948 12/1924 rig d 23% England 3,251,153 5/1966 Mittelsteadt 42/65  Assignee: The Crescent Toy Company Limited,
Cwmcarn, Monmouthshire, England Filed: Nov. 17, 1971 Appl. No.: 199,443
Foreign Application Priority Data Dec. 15, 1970 Great Britain 59,549/70 US. Cl 42/58, 42/65, 42/69 R Int. Cl. F4lc 3/06, F410 19/00 Field of Search 42/58, 54, 65, 66,
References Cited UNITED STATES PATENTS 11/1955 Hersey 42/58 Primary Examiner-Benjamin A. Borchelt Assistant Examiner-C. T. Jordan Attorney-Roberts B. Larson, Ross F. HuntJr. et a1.
 ABSTRACT A toy pistol has a hammer mechanism which includes a hammer lever controlled by a cam surface which cooperates with a nose portion on the trigger lever. The
1 Claim, 4 Drawing Figures TOY PISTOLS The hammer mechanism of a toy pistol is normally operated by cooperation between two cam surfaces, one on a lever arm controlled directly by the trigger and the other on a hammer lever which carries the hammer proper. These two cam surfaces each comprise a nose portion in the shape of a somewhat rounded V. Before the start of an operation the nose on the trigger lever lies beneath and in contact with the side of the nose on the hammer lever. As the trigger is pulled the nose on the trigger lever is raised, lever is thus raising the nose on the hammer lever and moving the hammer itself backwardly against the effect of its spring. As the movement continues the nose on the trigger lever moves along the undersurface of the nose on the hammer lever until the limit of its movement is reached when it slides off the end of this surface (i.e., as it reaches the apex of the nose portion of the hammer lever) and this then releases the hammer lever abruptly to fire the pistol, under the control of the hammer spring.
As soon as this has happened the nose on the hammer lever lies beneath the nose on the trigger lever and when the trigger is released the nose on the trigger lever bears against the upper surface of the nose on the hammer lever which thus tends to prevent the return of the trigger to its starting position. To permit the full return movement of the trigger either the trigger itself or the hammer lever may be mounted on a pivot which is free to slide in a slot and the action of the trigger return spring thus produces a sliding motion which enables the nose on the trigger lever to move downwardly past the nose on the hammer lever so as to return to a position in which it engages the underside of the nose on the hammer lever. This movement involves a considerable amount of friction and unless a very strong trigger re turn spring is fitted, which is undesirable, there is a risk that the trigger may not return to its fully forward position. The problem of sticky" or non-retuming triggers is an inherent one in the design of toy pistols.
According to the present invention the cam surface which cooperates with the nose portion on the trigger lever so as to control the hammer lever is formed on a separate member turning about the same fixed pivot as the hammer lever and spring loaded by means of a light spring so that it normally rests against the front surface of the hammer lever adjacent the pivot, but is able to pivot freely away from the hammer lever against the effect of its spring, to permit the return movement of the trigger lever.
The improved effect obtained by means of a construction in accordance with the invention can best be described by reference to the accompanying drawings which show an example of a construction in accordance with the invention.
In the drawings:
FIG. 1 shows the hammer and trigger mechanisms and associated parts of a toy pistol in a position just before the release of the hammer lever;
FIG. 2 is a similar view showing the position of the parts immediately after the release of the hammer lever;
FIG. 3 is a further similar view showing successive stages in the return movement of the trigger mechanism; and
FIG. 4 is a detailed, exploded perspective view illustrating the relationship between the hammer lever and a separate cam member controlling its movement.
Turning first to FIG. 1, this shows the operative parts of a toy pistol including a hammer mechanism indicated generally as 1, a trigger mechanism indicated generally as 2 and a cylinder 3 part of which is shown in section at 4 to illustrate the provision of firing pins 5 for the reception of a ring amorce or cap, part of which is shown in dotted outline at 6. The cylinder 3 is indexed by means of a finger 8 which cooperates with a ring of teeth 9 on the rear face of the cylinder 3 and is pivoted to the trigger lever at 10. Each time the trigger shown as 12 is operated, the cylinder 3 is indexed one step by the finger 8 in a well-known manner. The construction of the cylinder itself is described in more detail in the copending application Ser. No. 199,608, filed Nov. 17, l97l.
The trigger 12 is pivoted at 14 and is controlled by means of a spring 15 which encircles the pivot and bears at one end against a stop 16 in the body of the pistol and at the other end against a stop 18 on the trigger lever 19, the extreme end 20 of the spring controlling the indexing finger 8. The trigger lever 19 is formed with a cam surface in the shape of a nose portion 22 which cooperates with a similarly shaped cam surface 23 which controls the movement of the hammer shown as 24. As the trigger 12 is operated the nose 22 rides along the underside of the nose 23 thus forcing back the hammer 24 against the effect of a control spring 25 which encircles its pivot 26. FIG. 1 illustrates the extreme rearward position of the hammer 24 in which the tip of the nose 22 has just reached the tip of the nose 23 so that any further movement causes the nose 22 to move past the tip of the nose 23, thus releasing the hammer 24 and firing the pistol.
FIG. 2 shows the position of parts immediately after the release of the hammer 24. As can be seen, the hammer has moved forwardly to detonate one of the amorces or caps in the ring 6 and the cam surface 23 has moved downwardly, leaving the nose 22 in its uppermost position since, at this stage, the trigger 12 has not yet been released.
FIG. 3 shows, in the full line position of parts, the relative positions just after the release of the trigger 12. The nose portion 22 on the trigger lever 19 first engages the cam surface just above the nose portion 23. To permit the full return movement of the trigger mechanism, the nose 22 must pass the nose 23 and, as previously described this has in the past necessitated mounting either the pivot 14 for the trigger mechanism or the pivot 26 for the hammer mechanism in a slot so as to permit relative motion between the two pivots thus providing the necessary clearance for the two noses to pass one another. As shown in the full line position of FIG. 3, however, the nose portion 23 has moved downwardly by rotation about the pivot 26 and the nose portion 22 is just about to pass beyond it. This is made possible by the construction best seen from FIG. 4. As can be seen from this Figure, the cam surface and nose portion 23 is formed not on the hammer lever itself, shown as 30, but on a separate member 31 mounted to turn about the same pivot 26 as the hammer lever 30. The cam surface is formed on a portion 32 projecting laterally from the main body 31 of the member which fits directly against the hammer lever 30 so that the portion 32 lies in front of the hammer lever.
FIG. 4 is an exploded view and the actual relationship of the parts is best seen from FIGS. 1 to 3.
During the firing of the pistol, i.e., during the movement into the position of FIG. 1 and slightly beyond, the nose portion 23 is pressed upwardly by the nose portion 22 on the trigger lever 19 so that the member 31 is caused to turn in a clockwise direction. Since the portion 32 is in direct contact with the hammer lever 30, this movement is transmitted to the hammer lever to fire the pistol as already described. On the other hand, during the return movement of the mechanism the engagement between the nose portion 22 and the nose portion 23 causes the latter to move downwardly as already described with relation to FIG. 3, thus producing counter clockwise turning movement of the member 31 which, as shown in FIG. 3, allows the portion 32 to move away from the hammer lever 30 so that the member 31 turns independently of the hammer lever 30, this movement being controlled by means of a light spring 35 which offers very little resistance to the return movement of the trigger lever 19.
Immediately after the full line position of FIG. 3 has been passed, the nose portion 22 passes beyond the nose portion 23, thus freeing the member 31 and allowing it to return to its rest position shown in dotted lines under the control of the spring 35. The return movement of the trigger mechanism is also completed under the control of the spring until the trigger returns to its rest position shown in dotted lines as 12. In other words, during the firing of the pistol the force on the nose portion 23 is transmitted directly to the hammer 24 so as to operate the latter in the normal way, but during the return movement of the trigger mechanism, the nose portion 23 yields without transmitting the movement to the hammer 24 and allows the relatively unimpeded return movement of the trigger mechanism.
1. In a toy pistol, the combination of hammer mechanism and trigger mechanism wherein said trigger mechanism comprises a first fixed pivot, a trigger mounted to turn about said pivot and a trigger lever also mounted to turn about said pivot in conjunction with said trigger, said trigger lever being formed with a nose portion, and said hammer mechanism comprising a second fixed pivot, a hammer, a hammer lever carrying said hammer, said hammer lever having a front face and being mounted to turn about said second fixed pivot, a separate member also turning about said second fixed pivot and spring means urging said separate member against said front face of said hammer lever, said separate member having a cam surface cooperating with said nose portion of said trigger lever, whereby operation of said trigger cocks and releases said hammer mechanism and return movement of said trigger and said trigger lever is permitted by yielding of said separate member away from said hammer lever against the action of said spring means.