CA1091008A - Safety footwear - Google Patents
Safety footwearInfo
- Publication number
- CA1091008A CA1091008A CA320,345A CA320345A CA1091008A CA 1091008 A CA1091008 A CA 1091008A CA 320345 A CA320345 A CA 320345A CA 1091008 A CA1091008 A CA 1091008A
- Authority
- CA
- Canada
- Prior art keywords
- toe
- cap
- footwear
- coating
- safety footwear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
In safety footwear, an impact-resistant toe-cap, for example of steel, has a synthetic plastics coating by means of which it is secured to the shoe. The coating, which can incorporate a base board, has a lip which is stitched to the upper. The coating may form a peripheral flange for incorporation in a stitched welt. The coating protects the wearer against hard edges of the toe-cap and protects a steel toe-cap against corrosion.
In safety footwear, an impact-resistant toe-cap, for example of steel, has a synthetic plastics coating by means of which it is secured to the shoe. The coating, which can incorporate a base board, has a lip which is stitched to the upper. The coating may form a peripheral flange for incorporation in a stitched welt. The coating protects the wearer against hard edges of the toe-cap and protects a steel toe-cap against corrosion.
Description
10~ 0~
SAPETY FOOTWF~R
; . The present invention relates to safety footwear in which for the protection of the wearer's foot a metal or other impact-resistant toe-cap and, in some cases, other reinforccments are incorporated.
In existing safety footwear, whatever the method of construct-ion used for ~olning the upper to the sole unit, it has always been necessary to have a lining to protect the foot against the metallic toe-cap and to fix the toe-cap safely ln position. If the toe-cap is made of ~ome other material, for example a synthetic resin with carbon-fibre reinforcement, the protecti~e li~ing may not be required but the problem of fixing the toe-cap in position remains.
In accordance with the present invention there is provided safety footwear having an impact resistant toe-cap coated on all sur-faces with a synthetic plastics material characterized in that the coating extends beyond the rear edge of the toe-cap to form a flexible lip which is attached to the upper of the footwear. Not only does this construction facilitate assembly of the footwear, it also enables a strong structure to be obtaincd while nor dctracting from the com-ort of the footwear. The covering layer protects the foot against contact with the toe-cap and protects the toc-cap a~ainst the chemical effects of contact with or proximity to the foot.
, ,~ - , . . ~ - . . . :
, . ;
~ .: . ' ' '~ 109~00~
~ le coatinq of synthetic plastics material may be applied, for example, by dippinq, spraying or moulding. The lip can be taper-ed towards the rear. ~n edge strip may be affixed to the metal toe-cap before it is coated in orde~ to form a core for this flexible lip.
5 ~rhe edge strip may be tapered in sect~on and may either be applied to the outer ~rgin of the metal toe-cap or e]se split along its front edge to fit over the rear edge of the toe-cap.
It will be appreciated that by the use of the flexible lip at the rear edge of the toe-cap it is possible to improve the external appearance of the shoe by eliminating any hard line at the edge of the toe-cap. Internally comfort is improved by preventing any hard edge coming into contact with the foot.
The toe-cap with its covering layer can conveniently be secured within the shoe by the use of adhesives appropriate to the material of the covering layer.
A normal steel toe-cap has a tendency to shear through the bottom reinforcing plate and the bottom or sole unit ~hen a severe weight is applied to the toe-cap. It will be appreciated that the presence of a covering layer bonded to the toe-cap reduces this risk by blunting the lower edge of the toe-cap and interposing an addit-ional layer of shock-absorbing material.
It will readily be appreciated that the invention is applic-able to all types of safety ~ootwear whatever materials and methods of assembly may be used in their construction. In particular it applies equally to both externally fitted and internally fitted steel toe-caps.
~oreover it is possible to use a plastic-coated metal toe-cap not only without a lining but also without any outer in the t~e region.
m e invention wil' be d~scribed in more detail with the aid of r examples illustrated in the accompanying drawings, in which;-Fig.l is a longitudinal section of a safety boot or shoe in accordance with the invention, Fig. 2 is a transverse section of the toe-cap unit used in the footwear of Fig 1, Figs. 3 and 4 are longitudinal and transverse sections of a modifi~d toe-cap unit, and ' ' , .. , . . ~ :
: - , . :
i ~ 10'3100 si Fig. 5 is a longitudinal section of a further form of toe-cap unit for footwear in accordance with the invention.
The shoe shown in Fig, 1 has a moulded sole unit 8 and an upper 9. A steel toe-cap 10 and a bonded fibre base-board 11 of conventional type are both coated with synthetic plastics material 12 to form an integral unit. At ~i the rear edge of the toe-cap there is a tapered lip 13 which masks the sharp edge of the toe-cap to improve comfort and appearance. The upper 9 of the boot or shoe extends only to the rear edge of the toe-cap 10, where it is secured to the lip 13 by stitching, welding, stapling, or cementing or a combination of these methods. The coating 12, which is formed by moulding, serves as both the external and the internal surface of the toe-cap so that not only is the upper cut ~ short at the junction with the toe-cap but also no separate E~ lining of the toe-cap is required.
The structure shown in Figs. 1 and 2 is suitable for footwear of cemented, injection-moulded, or vulcanized ,~ construction. Figs. 3 and 4 show a modification in which the coating 12 forms an integral projecting flange 14 around the base-board 11. The flange 14 can be incorporated in the ~, welt of the shoe and stitched in position. Whereas Figs. 1 to 4 show constructions in which the base-board is incorporated as a single unit with the toe-cap, it is also possible to have a conventional separate base-board and this separate base-board can itself be plastic-coated to giye it greater resistance to physical and chemical damage.
In Fig. 5 a solid drawn metal toe-cap 15 which has base part 16 integral with the rest of the toe-cap is incorporated in a synthetic plastics body 17 which has a rear lip 18 and a peripheral flange 19. Such a construction can again be used with or without an upper which coYers the toe-cap.
As has been mentioned previously, other reinforcing components of the footwear can with advantage be provided with a covering layer or coating. For example the metal shank inserted in the instep can be coated and preferabl~ it is : . '" ' . :, ~ . , , '` ' 1()9100~
s - 3a -., embedded in a plastic part which is shaped to match the shape of the sole so that it is located in the correct position during assembly and thereby ensures correct location of the shank.
; 5 As has been mentioned a variety of methods may be :~ employed to form the coating which embeds or encapsulates the metal toe-cap. These include spray c ating.
.
' ~' t ,.....
`
";. ~ . . .
.
. . ` , . ~ .
.. ~ . .
? lU 9 i - 4 _ The coating may comprise synthetlc resins, including those reinforced with glass fibre and other fillers.
Toe-cap units in which the coating forms a peripheral flange, such as those shown in Figs. 3 to 5, are suitable for incorporation in a veldtschoen construction in which the upper is turned outwards and stitched to form a welt, ' . .
., .
' ~?.
' : . : . ' ' ,` ~ - ' ' . : ~ - ' : ` ' ' ., . , . . . ~
SAPETY FOOTWF~R
; . The present invention relates to safety footwear in which for the protection of the wearer's foot a metal or other impact-resistant toe-cap and, in some cases, other reinforccments are incorporated.
In existing safety footwear, whatever the method of construct-ion used for ~olning the upper to the sole unit, it has always been necessary to have a lining to protect the foot against the metallic toe-cap and to fix the toe-cap safely ln position. If the toe-cap is made of ~ome other material, for example a synthetic resin with carbon-fibre reinforcement, the protecti~e li~ing may not be required but the problem of fixing the toe-cap in position remains.
In accordance with the present invention there is provided safety footwear having an impact resistant toe-cap coated on all sur-faces with a synthetic plastics material characterized in that the coating extends beyond the rear edge of the toe-cap to form a flexible lip which is attached to the upper of the footwear. Not only does this construction facilitate assembly of the footwear, it also enables a strong structure to be obtaincd while nor dctracting from the com-ort of the footwear. The covering layer protects the foot against contact with the toe-cap and protects the toc-cap a~ainst the chemical effects of contact with or proximity to the foot.
, ,~ - , . . ~ - . . . :
, . ;
~ .: . ' ' '~ 109~00~
~ le coatinq of synthetic plastics material may be applied, for example, by dippinq, spraying or moulding. The lip can be taper-ed towards the rear. ~n edge strip may be affixed to the metal toe-cap before it is coated in orde~ to form a core for this flexible lip.
5 ~rhe edge strip may be tapered in sect~on and may either be applied to the outer ~rgin of the metal toe-cap or e]se split along its front edge to fit over the rear edge of the toe-cap.
It will be appreciated that by the use of the flexible lip at the rear edge of the toe-cap it is possible to improve the external appearance of the shoe by eliminating any hard line at the edge of the toe-cap. Internally comfort is improved by preventing any hard edge coming into contact with the foot.
The toe-cap with its covering layer can conveniently be secured within the shoe by the use of adhesives appropriate to the material of the covering layer.
A normal steel toe-cap has a tendency to shear through the bottom reinforcing plate and the bottom or sole unit ~hen a severe weight is applied to the toe-cap. It will be appreciated that the presence of a covering layer bonded to the toe-cap reduces this risk by blunting the lower edge of the toe-cap and interposing an addit-ional layer of shock-absorbing material.
It will readily be appreciated that the invention is applic-able to all types of safety ~ootwear whatever materials and methods of assembly may be used in their construction. In particular it applies equally to both externally fitted and internally fitted steel toe-caps.
~oreover it is possible to use a plastic-coated metal toe-cap not only without a lining but also without any outer in the t~e region.
m e invention wil' be d~scribed in more detail with the aid of r examples illustrated in the accompanying drawings, in which;-Fig.l is a longitudinal section of a safety boot or shoe in accordance with the invention, Fig. 2 is a transverse section of the toe-cap unit used in the footwear of Fig 1, Figs. 3 and 4 are longitudinal and transverse sections of a modifi~d toe-cap unit, and ' ' , .. , . . ~ :
: - , . :
i ~ 10'3100 si Fig. 5 is a longitudinal section of a further form of toe-cap unit for footwear in accordance with the invention.
The shoe shown in Fig, 1 has a moulded sole unit 8 and an upper 9. A steel toe-cap 10 and a bonded fibre base-board 11 of conventional type are both coated with synthetic plastics material 12 to form an integral unit. At ~i the rear edge of the toe-cap there is a tapered lip 13 which masks the sharp edge of the toe-cap to improve comfort and appearance. The upper 9 of the boot or shoe extends only to the rear edge of the toe-cap 10, where it is secured to the lip 13 by stitching, welding, stapling, or cementing or a combination of these methods. The coating 12, which is formed by moulding, serves as both the external and the internal surface of the toe-cap so that not only is the upper cut ~ short at the junction with the toe-cap but also no separate E~ lining of the toe-cap is required.
The structure shown in Figs. 1 and 2 is suitable for footwear of cemented, injection-moulded, or vulcanized ,~ construction. Figs. 3 and 4 show a modification in which the coating 12 forms an integral projecting flange 14 around the base-board 11. The flange 14 can be incorporated in the ~, welt of the shoe and stitched in position. Whereas Figs. 1 to 4 show constructions in which the base-board is incorporated as a single unit with the toe-cap, it is also possible to have a conventional separate base-board and this separate base-board can itself be plastic-coated to giye it greater resistance to physical and chemical damage.
In Fig. 5 a solid drawn metal toe-cap 15 which has base part 16 integral with the rest of the toe-cap is incorporated in a synthetic plastics body 17 which has a rear lip 18 and a peripheral flange 19. Such a construction can again be used with or without an upper which coYers the toe-cap.
As has been mentioned previously, other reinforcing components of the footwear can with advantage be provided with a covering layer or coating. For example the metal shank inserted in the instep can be coated and preferabl~ it is : . '" ' . :, ~ . , , '` ' 1()9100~
s - 3a -., embedded in a plastic part which is shaped to match the shape of the sole so that it is located in the correct position during assembly and thereby ensures correct location of the shank.
; 5 As has been mentioned a variety of methods may be :~ employed to form the coating which embeds or encapsulates the metal toe-cap. These include spray c ating.
.
' ~' t ,.....
`
";. ~ . . .
.
. . ` , . ~ .
.. ~ . .
? lU 9 i - 4 _ The coating may comprise synthetlc resins, including those reinforced with glass fibre and other fillers.
Toe-cap units in which the coating forms a peripheral flange, such as those shown in Figs. 3 to 5, are suitable for incorporation in a veldtschoen construction in which the upper is turned outwards and stitched to form a welt, ' . .
., .
' ~?.
' : . : . ' ' ,` ~ - ' ' . : ~ - ' : ` ' ' ., . , . . . ~
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Safety footwear having an impact resistant toe-cap coated on all surfaces with a synthetic plastics material characterized in that the coating extends beyond the rear edge of the toe-cap to form a flexible lip which is attached to the upper of the footwear.
2. Safety footwear as claimed in claim 1 in which the upper has an edge attached to the lip and does not cover the body of the toe-cap.
3. Safety footwear as claimed in claim 1 in which the lip is stitched to the upper.
4. Safety footwear as claimed in any of the preceding claims 1, 2 and 3 in which the toe-cap includes an integral base part.
5. Safety footwear as claimed in any one of claims 1, 2 and 3 in which the coating of the toe-cap also encloses a base-board to form an integral unit.
6. Safety footwear as claimed in any of the preceding claims 1, 2 and 3 in which the coating is in the form of a moulded unit with a peripheral flange which is fastened in the welt of the footwear.
7. Safety footwear as claimed in any of the preceding claims 1, 2 and 3 in which the toe-cap is of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA320,345A CA1091008A (en) | 1979-01-26 | 1979-01-26 | Safety footwear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA320,345A CA1091008A (en) | 1979-01-26 | 1979-01-26 | Safety footwear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1091008A true CA1091008A (en) | 1980-12-09 |
Family
ID=4113402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA320,345A Expired CA1091008A (en) | 1979-01-26 | 1979-01-26 | Safety footwear |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1091008A (en) |
-
1979
- 1979-01-26 CA CA320,345A patent/CA1091008A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |