Automatic hook-fishing device

An improved hook fishing device is described which consists of a base plate provided with side shoulders and capable of being fixed in the ground. A tubular member, located in a vertical plane and adapted to house the end portion of the fishing rod, is pivoted to the plate. A tension spring anchored in the plate holds the tubular member in slanted position. On the opposite side of the spring, is pivoted a small rod adapted to rotate in a vertical plane and provided with a lower tooth capable of engaging with a ridge formed onto the tubular member. At diametrally opposed positions, two movable circle sectors, of suitable width, rigid with the tubular member, are capable of defining a protecting gap for the spring, the two circle sectors cooperate with corresponding circle sectors fixed to the shoulders of the base plate. The movable sectors are effective to rotate in the inside of the fixed sectors and act as stop members for the downward rotation of the tubular member.

The present relates to an automatic hook-fishing device. 
As it is known, in the hook-fishing art, it is of the utmost importance 
that the fishing-line be immediately recovered, as soon as the fish bites 
at the hook. 
Accordingly, in the practice of this type of fishing, the fisherman has to 
exercise continuous attention with a remarkable reflex readiness, in order 
to prevent the fish from leaving the hook. 
It is also known that, sometimes, one only fisher locates several fishing 
rods, fixing in a suitable way said fishing rods in the ground and trying 
to tempestively act onto one or the other, as the fisherman detects the 
typical vibration due to the biting of the fish. 
In this case, even if the fisher uses optional acoustical signalling 
devices, such as ringers or the like, mounted at the top of the fishing 
rods, it is extremely difficult for the fisherman to act or operate, with 
sufficient readiness, on all said fishing rods. 
The preceding practical problem is on the contrary solved by means of the 
use of a particular mechanical device according to the present invention. 
More precisely, this mechanical device is substantially formed by a base 
plate, provided with side shoulders and capable of being fixed in the 
ground. 
To the aforesaid plate is pivoted, according to a horizontal axis, a 
tubular member, disposed in a vertical plane and sized in such a way as to 
house the end portion of a fishing rod, thereby acting as a supporting 
element therefor. 
This tubular member is connected, at one side, to a tension spring, 
anchored to the aforesaid plate and effective to hold said tube slanted 
downwardly. 
To that same plate is pivoted, from the opposite part with respect to the 
aforesaid spring, a small rod capable of rotating in a vertical plane and 
provided, at the free end end thereof, with a ridge carrying a small ball 
biassed by a spring. 
The latching between said small rod and the tube edge is obtained by 
exploiting the counterbiassing occurring between the inner portion of said 
edge and the aforesaid small ball. 
In this way, by suitably varying the pressure of the spring acting onto the 
ball, it is possible to predetermine the value of the minimum oscillations 
deemed necessary to act onto the fishing rod for causing the tube to 
unlatch. 
The aforesaid tube holding action is exercized, with a remarkable 
sensibility, by the instant device which comprises a small rod provided, 
at the lower portion thereof, with a suitable tooth. This latter, in fact, 
is effective to engage with a ridge formed, in a corresponding position, 
onto the fishing rod supporting tube. 
On that same small rod, moreover, presses, by a suitably adjustable 
intensity, a resilient element effective to allow for a gradual variation 
of the sensibility of said small rod with respect to the vibrations of the 
fishing rod to be obtained.

Referring particularly to the number references of the figures, the 
improved mechanical device according to the invention is formed by a base 
plate 1 effective to be fixed to the ground, for example by means of a 
plurality of nails inserted in through holes as formed through the 
thickness of said plate. 
This latter is furthermore provided with two parallel side shoulders 2, 
transversally of which is located a horizontal axle or pin 3. 
About this axle or pin is able to rotate a tubular member 4, sized in such 
a way as to act as a holding and supporting seat for the end portion of a 
fishing rod 5. This tube length is biassed, on one side, by a tension 
spring 6 which is respectively fixed, at the two ends thereof, to the 
plate 1 and to the edge of said tube. 
With said tube length 4 are rigid, at diametrically opposite positions, two 
circle sectors 7 of suitable width, effective to define a protecting gap 
for the spring 6, by cooperating with corresponding circle sectors 8 fixed 
to the shoulders 2 of the base plate. 
Practically, the movable sectors 7 are effective to rotate in the interior 
of the fixed sectors 8 and furthermore they act as stop members for the 
downwardly rotation of the tubular member 4, thereby limiting the maximum 
stroke thereof. 
These same sector pairs 7 and 8 are sized in such a way as to be always 
partially superimposed to one another, even when the fishing rod is in the 
operative or allurement position thereof (FIG. 1). 
In the part diametrically opposite with respect to the applying point of 
the recovering spring 6 is formed, onto the tube 4 and at the base 
thereof, a ridge 9 having a planar upper edge. On said edge is effective 
to engage, by friction, a tooth 10 formed, in corresponding position, on a 
small rod 11 pivoted, at the lower end thereof, onto a horizontal axle or 
pin 12, said small rod being provided, at the top thereof, with a circle 
arc-shaped portion 13 effective to encompass the fishing rod 5. 
On the lower portion of said small rod presses a push-point 14 resiliently 
biassed by a spring 15, the pressure force thereof may be adjusted by 
means of a threaded small bar 16 provided with a suitable knurled knob 17. 
By this means it is thereof possible to vary, depending on the different 
needs, the sensibility of said small rod 11 with respect to the fishing 
rod 5 vibrations, thereby conditioning the range of the minimum unhooking 
oscillations. 
From the above description and the examination of the figures of the 
accompanying drawing, the greater functionality and practicity of use 
characterizing the improved device according to the invention are 
self-evident.