US2529383A - Safety pin - Google Patents

Description

I. GLASBAND Nov. 7, 1950 SAFETY PIN Filed June 14, 1947 INVENTOR.

w w M G H 0 D M Y B Patented Nov. 7, 1950 "UNITED; STATES PATENT OFFICE SAFETY PIN Isadore Glasbandpl iartford, Conn.

Application June 14, 1947, Serial No. 754,701

1 Claim.

This invention relates to safety pins and more particularly to those of the type provided with means for securely holding the point seated within the cap or shield of the safety pin and preventing the pin from becoming accidentally opened.

An object of the present invention is to provide a simple, practical, and efiicient locking means for preventing the accidental release of the point of the pin from the shield or cap and which may be produced with practically no added cost over the conventional form of safety pin.

Further objects and advantages of this invention will be more clearly understood from the following description and from the accompanying drawings, in which:

Fig. 1 is an elevational side view of a safety pin embodying my invention and showing the same with the point being inserted into the shield.

Fig. 2 is a similar view showing the point seated within the shield.

Fig. 3 is a sectional end view, on line 33 of Fig. 1

Fig. 4 is a similar view on line 4-4 of Fig. 2.

Fig. 5 is a sectional plan view on line 5-5 of Fig. 2.

Fig. 6 is a sectional end View showing a modified form of my invention.

As shown in the drawings, a pin embodying my invention may be of conventional form having a body portion 5 to which is attached a shield 6 and from which extends a pin 1 which is connected to the body portion by means of a spring coil portion 8.

The present invention provides for forming the shield 6 in such a manner as to provide a constriction of the lip portions 99 thereof, so that the inner edges of said lips will be spaced apart at a distance which is less than th diameter of the pin portion 1 that passes between said lips as the pin is brought into closed position and seated within the shield 6.

As shown in Figs. 1 and 2, the shield 6 is U- shaped in elevation having a narrow upper arm 6 and a wide lower arm 6 connected by a substantially semicircular bight portion 6. As shown in Figs. 4 and 5 the upper arm Ii" of the shield and the upper half of the bight 6 fit completely around the terminal portion of the body 5, the edges of the blank from which the shield is formed contacting from along the underside of the arm 6 and the upper half of the bight 6. The lower arm 6 is shaped to form a pair of side portions or lips 9. The edges of these lips form the start from the point at which the contacting of the blank ends. Thus the upper half of the shield is of tubular formation. From Figs. 1 and 2 it is seen that the edges 9 of the lips 9 curve in side elevation downwardly from the upper arm B and rearwardly towards the coil 8. Furthermore, Fig. 5 shows that these edges 9 flare apart from the bight end of the tubular portion of the shield to a width equal substantially to the diameter of the body 5, contract to a distance less than said diameter and again flare apart to form a pin point-receiving portion l2 of a width greater than said diameter.

It will be noted from Fig. 5 that the said lips come closest together at the point IUI0, where the pin 1 engages them as it is passed into the shield, and that the forward edge portions of the lips are wider apart a llll so as to provide a funnel-shaped entrance for guiding the point of the pin into the shield.

In the operation of the embodiment illustrated, the pin is first brought into the position shown in Fig. 1 where the point of the pin has been guided into engagement with the lip 9--9. It is then forced past the said lips; causing them to spring apart, due to the inherent resistance in the material of the shield, and permit the pin to pass into the position illustrated in Fig. 4. The pin will then be prevented from accidentally opening due to the fact that pressure will be required to again pass it between the lips 9-9 into the open position.

In the illustration shown in Fig. 6, the pin may be provided with a guard tongue I2 of conventional form and the lips may be spaced apart,

as at l3l3', so that the distance between each lip and the side of the tongue I2 is less than the diameter of the. pin portion and, therefore, the said pin is required to be forced in order to spread the lips and the tongue apart when it moved into closed or open position.

It will be noted from the above description, and from the drawings, that the construction of a safety pin embodying my invention require only a simple operation of forming the lips 9-9 so that they will be drawn towards each other to a distance between them which is less than the diameter of the pin and that the shield may be constructed of a suitable resilient material to provide a spring action between the lips which will tend to lock the pin in closed position.

I claim:

In a safety pin having a wire spring coil at one end, a body extending from one end of the coil, and a sharp pin portion extending from the 3 other end of said coil, a shield having an upper tubular arm fitting closely on the terminal portion of said body, said shield having a lower arm for receiving the extremity of the said sharp portion, said arms being connected by a substantially U-shaped bight portion, the sides of the lower half of the bight portion and the lower arm forming lips, said lips having edges curved from the bight portion rearwardlytowards the spring coil 5 and downwardly away from the upper arm, said edges in plan flaring from the tubular arm to a width greater than the diameter of the said wire, contracting towards each other to a space les than said diameter and then expanding to a U-shaped portion having a width greater than 15 said diameter.

ISADORE GLASBAND.

4 7 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 640,542 De Long Jan. 2, 1900 1,279,080 Breunig Sept. 17, 1918 1,310,929 Richardson July 22, 1919 10 2,084,480 Crandall V June 22 1937 FOREIGN PATENTS Number Country Date 507,155 Great Britain June 9, 1939

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