Abstract: Impact protection plate that, applicable to motorcycles, bicycles and similar vehicles as protection means against impacts that can occur and affect the block (4) of the battery or the motor of the vehicle that includes: a protection external body (2) at least partly rigid directly joined to the block (4) of the battery or motor, and an internal core (1) of resilient material and absorbing impacts, intercalated between the lower base of the block (4) of the battery or motor to be protected and the external body (2) so that, in case of impact on the external body (2), a displacement of the rigid part of the body (2) towards the block (4) of the battery or motor and compressing the internal core (1) and capable to allow, when the impact ceases, that the external body (2) returns to its initial position ceasing to compress the internal core (1).

Abstract: A casing for electric battery that, applicable to an electric battery (2) to house inside a plurality of identical electrochemical cells (3) and including a metal container-shaped box (10), formed by a lower base (101) and a perimetric wall (102) , where the cells (3) are incorporated, that in addition includes an upper fixing part (11) that acts as a lid to the box (10) fitted on its perimetric wall (102) and on the cells (3) centering them and leaving the contacts or lugs apparent for the electric connection. An upper fixing part (11) can include housings (7) with holes that, distributed through the full extent of the part, have a number, shape and size adapted to receive an upper portion of each of the cells (3) so that they surround each cell (3) leaving apparent and insulated from one another their positive and negative contacts.

Abstract: A valve for a battery is provided to expel the air in case of overpressure generated in a battery includes from an external body (2) and a plunger (3) that travels inside it pushed by the battery pressure. The valve presents two opening positions and is coupled to a plunger (3), at least: —a first O-ring (5) that closes the passage of the air when there is no pressure and opens it when the plunger (3) moves at a first position from a given degree of pressure, —a second O-ring (6) that prevents the direct exit outside of the air when there is only a first degree of pressure and allows it when the degree of pressure is exceeded that opens the plunger (3) at second position, and —a ventilation element (4) that allows the passage of the air through it, but not the passage of the water.

Abstract: A casing for an electric battery (2) to house inside identical electrochemical cells (3) includes a metal container-shaped box (10), formed by a lower base (101) and a perimetric wall (102), where the cells (3) are incorporated. The lower base (101) of the box (10) internally presents identical slots (4), that are distributed on the full extent of a surface of the box and that have a number, shape and size adapted to receive a lower portion of each of the cells (3), so that each of the cells (3) of the battery remains secured in one of the slots (4) and separated from each other with a regular gap between them.

Abstract: A chain tensioner device includes: a threaded bolt (3) for adjusting tension on a chain, that remains inserted in a part (4) integral with the wheel shaft (5), arranged in horizontal position, so that the tip (3a) of the bolt (3), presses on a second part (6) integral at the opposite end of the gear, so that tightening or loosening the bolt (3) determines a gap between both parts (4, 6) to regulate the tension and a discretization mechanism of the gap between the first part (4) and the second part (6) that includes at least a retractable element (8) either in the bolt (3) or in the first part (4) that contacts and is fitted in one of the series of slots (11) provided either in the bolt (3) or in the first part (4) so that it is possible to know the tightening or loosening of the bolt (3) applicable in each action.

Abstract: Impact protection plate that, applicable to motorcycles, bicycles and similar vehicles as protection means against impacts that can occur and affect the block (4) of the battery or the motor of the vehicle that includes: a protection external body (2) at least partly rigid directly joined to the block (4) of the battery or motor, and an internal core (1) of resilient material and absorbing impacts, intercalated between the lower base of the block (4) of the battery or motor to be protected and the external body (2) so that, in case of impact on the external body (2), a displacement of the rigid part of the body (2) towards the block (4) of the battery or motor and compressing the internal core (1) and capable to allow, when the impact ceases, that the external body (2) returns to its initial position ceasing to compress the internal core (1).