Method of manufacturing a stick and a stick manufactured accordi

Details Method of manufacturing a stick and a stick manufactured accordi Method of manufacturing a stick and a stick manufactured accordi

1983-01-03

1985-03-12

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156190, 156252, B32B 3100

Patent

active

045043442

DESCRIPTION:

BRIEF SUMMARY
This invention relates to a method of manufacturing a stick, preferably for bandy or ice-hockey, and to a stick manufactured according to said method.
At present only bandy and ice-hockey sticks made of wood are used in practice. It is not only extremely difficult to procure the raw material (a special sort of wood), but these sticks, in addition, also are manufactured in a great variety of working moments, which are carried out manually. Such bandy and ice-hockey sticks, consequently, are extremely expensive to manufacture.
It was also tried to manufacture sticks, especially ice-hockey sticks, of synthetic materials, but they apparently did not compare favourably with the sticks made of wood, because they never got established on the market.
The present invention has the object to propose a method for the manufacture of a bandy or ice-hockey stick, which is extremely cheap to manufacture and, besides, has properties very similar to those of conventional wood sticks.
This object is realized by a method and a stick, which have been given the characterizing features defined in the attached claims.
An embodiment of the invention is described in the following, with reference to the accompanying drawings, in which
FIG. 1 is a schematic view of a bandy stick according to the invention,
FIG. 2 is a section along II--II in FIG. 1,
FIG. 3 is a section along III--III in FIG. 1,
FIG. 4 is a schematic view of an ice-hockey stick according to the invention,
FIG. 5 is a section along V--V in FIG. 4, and
FIG. 6 is a section along VI--VI in FIG. 4.
The bandy stick shown in FIGS. 1-3 comprises a handle portion 2, which at one end transforms to a curved blade portion 3.
The bandy stick 1 is built up of a core 4 of polyurethane foam with a density of preferably 100-400 g/liter. In said core 4 a reinforcing strip 8, preferably of glass-fibre reinforced polyester, is attached. At the contact surface of the stick with the ice, furthermore, an additional reinforcing portion 6 of plastic sheet laminate or Teflon is located.
The first manufacturing step, i.e. the manufacture of the core 4, proceeds so that polyurethane foam is injected into a foam mould. The density of the core 4 can be varied by varying the amount of polyurethane foam injected into the mold.
Subsequent to the setting of the foam, the mould is removed, and the core 4 is ready.
A longitudinal groove 5 is now sawn into the core 4 so as to extend from the free end of the handle portion 2 to the region of the blade portion 3, into which a plurality of holes 7 are drilled.
Into said groove 5 a reinforcing strip 8 of glass-fibre reinforced polyester is laid, so-called one-way roving. The reinforcing strip 8 has a thickness smaller than the width of the groove 5, as shown in FIG. 2. The height of the strip 8 is equal to the height of the groove 5.
The manufacturing process continues in that a tape 9 of directed glass fibre, so-called one-way roving, is wound about the core 4 from the free end of the blade portion 3 to the free end of the handle portion 2. The winding is made with some overlapping, which is greater in the blade portion 3 and adjoining part of the handle portion 2. The tape 9 retains the reinforcing strip 8 in place in the groove 5.
Over the outside of the tape 9 wound-on a hose 10 of diagonally woven glass fibre (roving 50--50) is drawn and extends all the way from the free end of the blade portion 3 to the free end of the handle portion 2. In this manufacturing phase the hose 10 has the object of keeping the tape 9 in place.
The core 4 with the groove 5, reinforcing strip 8, tape winding 9 and hose 10 is placed into an injection mould, into which polyester plastic is injected which thereby forms a surface layer 11 about the entire core 4. See FIGS. 2 and 3.
The polyester plastic also fills the holes 7 in the blade portion 3, whereby small staves of polyester plastic are formed which extend transversely through the blade portion 3 and reinforce the same.
Due to the thickness of the reinforcing strip 8 being smaller than the width of the groove 5, the poly

REFERENCES:
patent: 3353826 (1967-11-01), Traverse
patent: 3855031 (1974-12-01), McNeely
patent: 4013288 (1977-03-01), Goverde
patent: 4052499 (1977-10-01), Goupil et al.
patent: 4059269 (1977-11-01), Tiitola
patent: 4124208 (1978-11-01), Burns
patent: 4180413 (1979-12-01), Diederich

Affiliated with

Also associated with

Rating

Method of manufacturing a stick and a stick manufactured accordi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing a stick and a stick manufactured accordi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a stick and a stick manufactured accordi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-706625