GB2171292A - Crash helmet with visor wiper - Google Patents

Abstract

A crash helmet having a visor 4 is provided with a visor wiper assembly comprising a wiper arm and blade 3 arranged to be reciprocated to and fro across the visor by means of a rack and pinion drive. The pinion 1B may be rotated by an electric motor 1A. Reversing switches 6 may be located at the limits of the wiper arm travel. Water may be sprayed onto the visor via nozzle 5. <IMAGE>

Description

SPECIFICATION Crash helmet visor wiper This invention relates to a visor wiper for a crash helmet.

Riding a motorbike is very hazardous when raining or snowing. Droplets of water form on the visor which make it very hard to see. If wiped off with a glove this makes streaks of water and the vision becomes even worse. The worst time is at night when lights from oncoming traffic hit the droplets and refract causing the visor to become one sheet of light.

This invention provides a wiper and washer to take rain water or snow etc. off of a visor by means of rack and pinion gearing which has reversing switches incorporated, therefore enabling the small electric motor and drive shaft to drive the rack and pinion gearing to and fro. Attached to the rack and pinion gearing is the wiper arm and blade. When the wiper is not in use it will be to the side of the visor and out of vision. The visor can still be lifted up in the normal manner because all the attachments are on the visor. The wiper arm and blade are detachable so a new blade can be fitted or for safety reasons when in case of an accident the arm and blade will be knocked off on impact.

On the side of the helmet there is a socket which combines the water and electrical feed. When a plug is pulled out of the recoil and connected into the socket the water and electric circuits are completed. When the plug is disconnected from the socket, the rider or driver is able to get off or out of his vehicle. The bracket could be fitted on to bikes or vehicles which have a battery source, and the water bottle could be fitted too. Switches will have to be put in a certain position where they are convenient to operate.

Figure 1 shows the wiper arm and blade on the rack and pinion gearing together with the electric motor and drive shaft assembled on the visor, which is attached to the helmet.

Figure 2 shows the recoil mechanism disconnected from the helmet and wiper circuits.

Figure 3 shows the wiring diagram.

Figure 4 shows a cross section of the rack and pinion gearing with the drive shaft mounted on the visor.

Figure 5 shows a diagram of the rack and pinion gearing with an attachment for the wiper arm and blade. Front, back and top views.

Figure 6 shows the side and front view of the wiper arm and blade.

Figure 1 shows the electric motor 1A and drive shaft 1B and rack and pinion gearing 2 mounted on the visor 4. The electric motor 1A and drive shaft 1 B drives the rack and pinion gearing 2 which enables the wiper arm and blade 3 to move to and fro on to reversing switches 6. The water feed 7 is incorporated in the rack and pinion gearing system and allows spray to come out of the visor washer 5 for cleaning.

Figure 2 shows the same as Figure 1 up to number 7. The battery is 12. Plug 9A and plug socket 9B connected up complete the electric circuit and water feed. The push button electric switch 14 operates the visor washer water pump 10 enabling the water from the water bottle 11 to travel up the water hose 8. The on/off wiper switch 13 enables the wiper to start. The bracket 16 holds the recoil mechanism 15 which rewinds the electrical feed wire 17 and water hose 8.

Figure 3 gives a detailed wiring diagram showing how the system operates.

The way that the rack and pinion gearing 2 works is illustrated in Figure 4 cross section with drive shaft 18 with pinion attached driving the rack in the track, which also has an attachment 18 for the wiper arm and blade 3.

Figure 5 shows the front, back and top views allowing the rack and pinion gearing 2 to be stuck to the visor without any moving parts touching the visor 4.

Figure 6 shows the front and side views of the wiper arm and blade 3 which has for example catches or clips or similar means (not shown) for connecting to the attachment 18.

1. A crash helmet comprising a visor and a visor wiper, one end of a wiper arm being adapted to run lineally on a track whereby a wiper blade will sweep reciprocally across the visor, gearing being provided to return the end of the wiper arm and thereby the blade when the arm reaches one end of the track or the other.

2. A crash helmet as claimed in Claim 1, in which a prime mover is provided above the track to operate the wiper arm and the gearing.

3. A crash helmet as claimed in Claim 2, in which the prime mover is an electric motor driven by batteries mounted separately from the visor.

4. A crash helmet as claimed in Claim 2, in which the prime mover is operated by an external source of supply, either pneumatic or electrical.

5. A crash helmet as claimed in any preceding claim, in which means are provided for supplying a jet of water to the visor, the water supply being mounted separately from the helmet.

6. A crash helmet constructed and arranged substantially as herein described with reference to and as illustrated in the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Crash helmet visor wiper This invention relates to a visor wiper for a crash helmet. Riding a motorbike is very hazardous when raining or snowing. Droplets of water form on the visor which make it very hard to see. If wiped off with a glove this makes streaks of water and the vision becomes even worse. The worst time is at night when lights from oncoming traffic hit the droplets and refract causing the visor to become one sheet of light. This invention provides a wiper and washer to take rain water or snow etc. off of a visor by means of rack and pinion gearing which has reversing switches incorporated, therefore enabling the small electric motor and drive shaft to drive the rack and pinion gearing to and fro. Attached to the rack and pinion gearing is the wiper arm and blade. When the wiper is not in use it will be to the side of the visor and out of vision. The visor can still be lifted up in the normal manner because all the attachments are on the visor. The wiper arm and blade are detachable so a new blade can be fitted or for safety reasons when in case of an accident the arm and blade will be knocked off on impact. On the side of the helmet there is a socket which combines the water and electrical feed. When a plug is pulled out of the recoil and connected into the socket the water and electric circuits are completed. When the plug is disconnected from the socket, the rider or driver is able to get off or out of his vehicle. The bracket could be fitted on to bikes or vehicles which have a battery source, and the water bottle could be fitted too. Switches will have to be put in a certain position where they are convenient to operate. Figure 1 shows the wiper arm and blade on the rack and pinion gearing together with the electric motor and drive shaft assembled on the visor, which is attached to the helmet. Figure 2 shows the recoil mechanism disconnected from the helmet and wiper circuits. Figure 3 shows the wiring diagram. Figure 4 shows a cross section of the rack and pinion gearing with the drive shaft mounted on the visor. Figure 5 shows a diagram of the rack and pinion gearing with an attachment for the wiper arm and blade. Front, back and top views. Figure 6 shows the side and front view of the wiper arm and blade. Figure 1 shows the electric motor 1A and drive shaft 1B and rack and pinion gearing 2 mounted on the visor 4. The electric motor 1A and drive shaft 1 B drives the rack and pinion gearing 2 which enables the wiper arm and blade 3 to move to and fro on to reversing switches 6. The water feed 7 is incorporated in the rack and pinion gearing system and allows spray to come out of the visor washer 5 for cleaning. Figure 2 shows the same as Figure 1 up to number 7. The battery is 12. Plug 9A and plug socket 9B connected up complete the electric circuit and water feed. The push button electric switch 14 operates the visor washer water pump 10 enabling the water from the water bottle 11 to travel up the water hose 8. The on/off wiper switch 13 enables the wiper to start. The bracket 16 holds the recoil mechanism 15 which rewinds the electrical feed wire 17 and water hose 8. Figure 3 gives a detailed wiring diagram showing how the system operates. The way that the rack and pinion gearing 2 works is illustrated in Figure 4 cross section with drive shaft 18 with pinion attached driving the rack in the track, which also has an attachment 18 for the wiper arm and blade 3. Figure 5 shows the front, back and top views allowing the rack and pinion gearing 2 to be stuck to the visor without any moving parts touching the visor 4. Figure 6 shows the front and side views of the wiper arm and blade 3 which has for example catches or clips or similar means (not shown) for connecting to the attachment 18. CLAIMS

1. A crash helmet comprising a visor and a visor wiper, one end of a wiper arm being adapted to run lineally on a track whereby a wiper blade will sweep reciprocally across the visor, gearing being provided to return the end of the wiper arm and thereby the blade when the arm reaches one end of the track or the other.

2. A crash helmet as claimed in Claim 1, in which a prime mover is provided above the track to operate the wiper arm and the gearing.

3. A crash helmet as claimed in Claim 2, in which the prime mover is an electric motor driven by batteries mounted separately from the visor.

4. A crash helmet as claimed in Claim 2, in which the prime mover is operated by an external source of supply, either pneumatic or electrical.

5. A crash helmet as claimed in any preceding claim, in which means are provided for supplying a jet of water to the visor, the water supply being mounted separately from the helmet.

6. A crash helmet constructed and arranged substantially as herein described with reference to and as illustrated in the accompanying drawings.