US2245993A - Spring extension handle for fish landing net - Google Patents

Description

June 17, 1941. L. R. MCCOY SPRING EXTENSION HANDLE FOR FISH LANDING NET Filed June 11, 1940 Patented June 17, 1941 UNlTED ATT OFFICE SPRING EXTENSION HANDLE FOR FISH LANDING NET 4 Claims.

This invention relates to an extensible handle construction and has for its general object the provision of a handle device that may be easily and readily, manually operated.

Another object of this invention is to provide an extensible handle construction so designed as to be capable of absorbing severe shocks without damage to the said device.

A further object of this invention is to provide an extensible handle construction of a relatively simple design which may be inexpensively manufactured and also easily repaired.

Another object of the invention is the provision of an extensible handle construction having a handle at one end, a work-engaging element at the other end, and which device is released to its extended position by a control button located adjacent the handle end.

Other objects and advantages of this invention will become apparent from the following descriptions taken in connection with the accompanying drawing, in which- Fig. 1 is a vertical cross-section lengthwise of the extensible handle in the retracted position, showing the control button at the top, and a net on the extensible end portion;

Fig. 2 is a plan view of the device shown in Fig. 1 with the extensible handle in its extended position, but not including the extreme end carrying the net;

Fig. 2A is a plan view of the end construction of the extensible handl with the net;

Fig. 3 is a cross-section taken on the line 3-3 of Fig. 2;

Fig. 4 is a cross-section taken on the line 3-4 of Fig. 1.

Referring now more particularly to the drawing in Figs. 1 and 2, the numeral I designates a handle fixedly mounted upon an elongated, rigid, supporting member 2, the said supporting member being substantially circular in crosssectional contour, as is clearly shown in Figs. 3 and 4. A sleeve 3, also constructed of a rigid material, is slidably mounted upon and overlies the sup-porting member 2, and extends longitudinally on the supporting member 2 from the adjacent and inner end of the handle I, to a point beyond that end of the supporting member the farthest from the handle. Passing transversely through and adjacent to that end of the sleeve 3' the farthest from the handle I is a bolt 4, which is in its turn furnished with the usual fastening nut 5, the combination of the said bolt and the said nut constituting a means for detachably mounting various tools,

an example of which, by way of illustration, is the framework l3 upon which is mounted the fish-landing net I (Figs. 1 and 2A).

Near the inner end of the top portion of the said handle I, I have provided a control pin 8 and an operating button 8 the function of the pin and the button to be described in the following.

As is clearly shown in Figs. 1 and 2, near the handle end of the supporting member 2 is a recessed slot 2 whose side walls are denoted by the numeral 2 the said recessed slot extending from a point inside of the said handle and passing immediately below the said control pin 8 to a point beyond the inner end of the handle I. Th slot 2 is continued in a second slot 2 of a narrower width whose side walls are defined by the numeral 2*, the said second slot 2 then being extended substantially the length of the elongated supporting member 2.

The detent or latch means for securing the slidable sleeve 3 in its retracted position will now be described. It will be observed from Figs. 1 and 2 that the handle I overlies a portion of the recessed slot 2. The spring means for the detent is provided as follows. In that part of the above-described recessed slot which is enclosed by the handle I, two pins, 9 and [0, respectively, are inserted at approximately right angles to the sides of the recessed slot. A thin band or strip of spring metal is rotatably mounted upon the pin 9, and is extended to the pin I0, whereupon it is bent around the said pin I0, and is passed immediately below the detent pin 8 and projected into the exposed portion of the recessed slot immediately adjacent the inner end of the handle. The latching means includes a stud I2 which is fixedly mounted upon the outer surface of the metal spring at its free end, and is of sufficient length to lie slightly within the walls of the walls of a rectangularly shaped slot I3 in sleeve 3.

Near the handle end of the sleeve 3 and in proximity to and in alignment with the rectangular slot 3, a non-detachable pin Ia extends transversely through the slidable sleeve 3 and between the walls 2 of the slot and the supporting member 2. It thus becomes evident that the slidlable sleeve 3 is thereby non-detachably mounted on, and is permanently coupled to the supporting member 2.

As was described above, the slidable sleeve 3 projects beyond that end of the supporting member 2 farthest from th handle. A compartment is thus formed at that end of the device, comprising the end surface I5 of the member 2 and the inner surfac of the slidable sleeve 3. A detachable bolt I6 is mounted upon the slidable sleeve 3, and extends transversely through the said sleeve. Confined within the above-described compartment is a tension spring 11, one end of which abuts on the end surface I5 of the supporting member 2 and the other end abuts the above-described bolt I6. The spring 11 normally tends to expand from the compressed position shown in Fig. 1 to the position shown in Fig. 2 and Fig. 2A. It thus becomes apparent that regardless of the position of the slidable sleeve 3 upon the supporting member 2, the two parts will always be subjected to a force tending to extend the device.

Having described my invention in detail, its operation becomes quite evident. Assuming the device to be in its retracted position and it is now desired to extend the same, the operator grasps the handle I of the extensible handle construction and first presses the operating button 8 thus depressing the detent pin 8, The said detent pin is thereby brought into contact with the metal spring H, depressing it until the stud I2 is brought below the inner surface of the slidable sleeve, and the sleeve thereby becomes released. By virtue of the tension exerted by the tension spring I! upon the end surface l 5 of the supporting member 2 and the abutment bolt IS, the slidable sleeve and the supporting member 2 are 3 forced apart and are flexibly maintained in their extended position.

In order to return the parts to their original positions, the operator grasps the handle I in one hand and again depresses the control button 8*, thereby lowering the stud 12 as fully described above. The slidable sleeve 3 is grasped with the other hand and the two hands are then moved toward each other until the rectangular slot l3 in the slidable sleeve 3 is again in position above the stud l2, whereupon the detent pin is released and the stud is projected into the rectangular slot, thereby releasably securing the sleeve on the supporting member.

It is to be noted that as a result of the con- 1 struction peculiar to this extensible handle, any shock that may be transmitted along the longitudinal aXis of my extensible handle construction, while it is in its extended position, will be greatly absorbed by the tension spring l'l, thus reducing the possibility of any damage occurring to the said extensible construction to a minimum.

To one skilled in this art, it at once becomes obvious that the comparatively simple construction of this invention will lend itself well to lowcost production and maintenance.

What I claim is:

1. An extensible handle construction consisting of a supporting member having a handle at one end thereof, a sleeve slidably mounted upon the said supporting member and adapted to be secured in a retracted position overlying the said supporting member and to be extended lengthwise of said supporting member, said sleeve having a sliding fit throughout its length with respect to the said supporting member, means for detachably mounting tools on said sleeve at the end farthest from said handle, means for preventing rotation of said sleeve about the axis of the said supporting member, and resilient means normally under compression when said handle construction is in the retracted position, said resilient means confined within the said sleeve engaging that end of the said supporting member and that end of the said sleeve the farthest from the said handle and constantly urging said sleeve and said supporting member to their extended positions, and detent means for maintaining said sleeve in its retracted position located at the handle end of said supporting member.

2. An extensible handle construction consisting of a supporting member, a handle mounted upon one end of the supporting member, a sleeve slidably mounted upon said supporting member and adapted to be secured in a retracted position overlying said supporting member and to be extended lengthwise of said supporting member, said sleeve having a sliding fit throughout its length with respect to said supporting member, means for detachably mounting tools on said sleeve, resilient means normally under compression when said handle construction is in the retracted position, said resilient means confined within said sleeve engaging that end of said supporting member and that end of the said sleeve the farthest from said handle and constantly urging said sleeve and said supporting member to their extended positions, means for preventing the rotation of the said sleeve and detent means in the said handle for maintaining said sleeve in its retracted position.

3. An extensible handle construction consisting of a supporting member, a handle mounted upon one end of the said supporting member, a sleeve slidably mounted upon the said supporting member and adapted to be secured in a retracted position overlying said supporting member and to be extended lengthwise of said supporting member, said sleeve having a sliding fit throughout its length with respect to the said supporting member, means for detachably mounting tools on that end of the said sleeve the farthest from the said handle, resilient means normally under compression when said handle construction is in the retracted position, said resilient means confined within said sleeve engaging that end of said supporting member and that end of the sleeve the farthest from said handle and constantly urging said sleeve and said supporting member to their extended positions, means for preventing rotation of the said sleeve on said supporting member and detent means in the said handle for maintaining said sleeve in its retracted position.

4. An extensible handle construction consisting of a supporting member, a handle mounted upon one end of the supporting member, a sleeve slidably mounted upon the said supporting member and adapted to be secured in a retracted position overlying said supporting member and to be extended lengthwise of said supporting member, said sleeve having a slidable fit throughout its length with respect to said supporting member, means for detachably mounting tools on said sleeve, resilient means normally under compression when said handle construction is in the retracted position, said means confined wlthin said sleeve engaging that end of said supporting member and that end of the said sleeve the farthest from the handle and constantly urging said sleeve and said supporting member to their extended positions, detent means in said handle for maintaining said sleeve in its retracted position and means for positively and simultaneously aligning said detent means in operable position when said sleeve is returned from its extended position to its retracted position.

LEE. R. McCQY.

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