Field of the Invention

The present invention relates to a cover mechanism that can be used to form ventilation openings on the ceilings of the cabins of vehicles such as buses, minibuses, caravans and boats etc.

The invention particularly relates to a ventilation cover mechanism that can be opened with horizontal movement and provides an ergonomic use for the user by taking advantage of weight.

State of the Art

There are ventilation covers on the ceilings of the cabins of vehicles such as minibuses, caravans and boats. The part to be opened is pushed upwards and the body and cover are separated so as to open the existing ventilation covers. Since the ventilation covers are located on the ceiling of the vehicle, they are in a place where human access is difficult. Therefore, the user must expend energy in the direction that he/she cannot easily apply force so as to open it. This harms the shoulder muscles of the user and creates a non-ergonomic situation. Users with insufficient strength or height cannot open the covers. Therefore, these covers address limited users.

Current ventilation covers have two positions, namely fully open and fully closed. The covers advance themselves towards these two positions due to their operating principles. In case the cover must be between fully open and fully closed positions again the problem of precise position adjustment is encountered in a direction where access is difficult and force cannot be applied easily.

In the patent search of the state of the art, the application numbered DE102019200066A1 was encountered regarding the subject. There is a structure in which the cover is opened by moving the handle horizontally in this application. However, in this structure, the cover is in contact with arms which are directly connected to the handles. This makes the user to bear the entire weight of the cover. There is still a non-ergonomic condition for the user, since a structure that will take advantage of the load is not created even if it is moved in a horizontal manner.

As a result, due to the abovementioned disadvantages and the insufficiency of the current solutions regarding the subject matter, a development is required to be made.

Aim of the Invention

An aim of the invention is to ensure that the ventilation cover is not opened by pushing upwards, but by moving the handles on the ventilation body in the horizontal direction. Therefore, a more ergonomic solution is provided by enabling the user to apply force in an easier direction.

Another aim of the invention is to ensure the opening-closing of the cover with less force than the existing covers, by means of the power gain of the elements in the mechanism that moves the cover. It become a cover which is easily opened since the direction of force is different.

Another aim of the invention is to enable the mechanism to be adjusted easily in the semi-open position, by fixing its movable handles in different positions.

Another aim of the invention is to provide a mechanism that is more difficult to open and close against external effects such as the wind coming to the cover, in opposition to the existing solutions.

In order to fulfill the abovementioned aims, the present invention relates to an opening-closing ventilation cover mechanism that can be used to form ventilation opening on the cabins of vehicles such as buses, minibuses, caravans and boats,

• that has a cover suitable for covering said ventilation opening,

• a ventilation body suitable for fitting into the ventilation opening, forming the overlapping frame with said cover

The invention is characterized in that, it comprises the following;

• at least one handle that the user moves to change the position of said cover,

• at least one first channel that is formed horizontally in the lower section of said ventilation body, guides said handle,

• at least one second channel that is formed horizontally in the upper section of said ventilation body, • at least one first transfer element that is engaged with the rear section of said handle which is not on the user's side, transfers the movement it receives from the handle to the second transfer element with which it is engaged,

• at least one second transfer element that is engaged with said second channel and the cover, transfers the movement it receives from said first transfer element to the cover, is movable within the second channel,

• a guide element that is positioned between the first channel and the second channel on said ventilation body, closer to the second channel; engaged with said first transfer element in such a way so as to form a pivot point to the first transfer element.

Description of the Figures

Figure 1 is an illustrative perspective view of the inventive ventilation cover mechanism.

Figure 2 is an illustrative perspective view of the inventive ventilation cover mechanism from the bottom.

References

10. Ventilation body

1 1 . First channel

12. Second channel

13. Guide element

14. Support element channel

20. Cover

30. Handle

40. First transfer element

50. Second transfer element

60. Support element

H: Opening

100. Ventilation Cover Mechanism Detailed Description of the Invention

In this detailed description, the preferred alternatives of the inventive ventilation cover mechanism (100) is described only for clarifying the subject matter such that no limiting effect is created.

In Figure 1 , an illustrative perspective view of the inventive ventilation cover mechanism (100) is given. The ventilation body (10) in said ventilation cover mechanism (100) fits into the ventilation opening (H) on the vehicle roof. Said ventilation body (10) guides the mechanism parts with the channels and openings thereon, the overlapping frame is formed by the collapsible cover (20) covering the ventilation opening (H).

A first channel (1 1 ) and a second channel (12) are formed on said ventilation body (10). Said first channel (1 1 ) is the opening that guides the handle (30) that the user moves to change the position of the cover (20) and it is located in the lower part closer to the user. There are protrusions on the upper and lower surfaces of the first channel (1 1 ) so as to fix the position of the handle (30) (not shown in figures). Said first channel (1 1 ) is formed horizontally on the ventilation body (10).

Said second channel (12) is formed horizontally on the ventilation body (10) so as to be closer to the cover (20). The second channel (12) is shorter in length than the first channel (11 ).

The handle (30) located in said first channel (11 ) is the element that the user drives the mechanism so as to change the position of the cover (20) between open and closed. The form of the handle (30) is compatible with the protrusions on the upper and lower surfaces of the first channel (1 1 ) with which it is engaged. Therefore, the handle (30) can be fixed at the desired point in the first channel (11 ). Thus, the position of the cover (20) will also be fixed at the desired point.

The rear section of said movement handle (30) which is not on the user's side, and the first transfer element (40) are engaged in a manner such that they are able to perform rotational movement. There is also a second transfer element (50) engaged with the second channel (12) in the structure, which can perform rotational and translatory movement along the second channel (12). Said second transfer element (50) is also engaged with the cover (20) in such a way that it can perform rotational movement. Said second transfer element (50) transmits the movement it receives from the first transfer element (40) to the ventilation cover (20) where it is fixed in such a way that it can perform axial rotational movement. The first transfer element (40) is in contact with the second transfer element (50) such that it can rotate axially, while extending towards the part of the second channel (12) where the second transfer element (50) is located. The first transfer element (40) is also engaged with a guide element (13) located on the ventilation body (10), between the first channel (1 1 ) and the second channel (12), closer to the second channel (12) in such a way that it allows rotational movement. Said guide element (13) guides said first transfer element (40). Said second channel (12) is the point where the first transfer element (40) and the second transfer element (50) are connected axially to each other. The second transfer element (50) moves by means of the first transfer element (40).

Said first transfer element (40) transmits the movement it receives from the handle (30) to the second transfer element (50) by rotating about the guide element (13). In the meantime, since the length of the first transfer element (40) is required to be changed, it has a telescopic structure. Since the guide element (13), which is the axis of rotation, is closer to the second channel (12), force advantage is achieved.

In Figure 1 , only the elements in the left side of the z-y plane of the mechanism are shown as a whole so as to see all elements. Fundamentally, said handle (30), first channel (11 ), first transfer element (40), guide element (13), second channel (12) and second transfer element (50) are also on the right side of the z-y plane. Therefore, it can be driven separately from both sides of the cover (20) according to the z-y plane and its position can be adjusted as desired.

The support element (60), which is connected to the cover (20) from its middle point, provides support to the cover (20) during opening and closing by advancing over the support element channel (14) formed at the midpoint of the ventilation body (10). Axial rotational movement is possible between said support element (60) and the cover (20). However, the support element (60) can only make translatory movement in the z-direction within the support element channel (14). Therefore, the ends of the cover (20) will be closed each time by contacting the correct position on the ventilation body (10).

In a different alternative of the invention, if there is a drive mechanism on one side of the z-y plane, the cover can have a function that can be opened and closed from one side.

In Figure 2, an illustrative perspective view of the inventive ventilation cover mechanism (100) is given from the bottom. The user moves the side of the handle (30) contained in this view horizontally to the right and left along the first channel (1 1 ). Thus, it is ensured that the cover (20) is opened and closed or positioned in a semi-open state.

The operating principle of the invention is detailed here in the following. Since the operating principle of the ventilation cover mechanism (100) is the same and symmetrical on both sides, the opening and closing principle of the cover (20) will be explained in terms of one side.

When the movement handle (30) on the ventilation body (10) is moved in such a way that is parallel to the first channel (1 1 ) of the body, the first transfer element (40) in telescopic structure is in motion since it is axially connected to the movement handle (3) and it rotates around the guide element (13) to which it is axially engaged. The required length change is realized by means of the telescopic structure of the first transfer element (40), and simultaneously it drives the second transfer element (50) to which it is axially connected, in the opposite direction of the movement handle (30).

Since the guide element (13) on the ventilation body (10) is closer to the second channel (12) on the side of the cover (20), force is transferred to the second transfer element (50) which is more than the force applied to the movement handle (30). Therefore, the force to be applied by the user decreases and the direction of force becomes more comfortable. Since the second transfer element (50) can perform rotational and translatory movement within the body second channel (12), it ensures rising and lowering the part of the ventilation cover (20), to which it is engaged axially. The ventilation cover (20) is closed, when the movement handle (30) is pulled to the left, and the ventilation cover (20) is opened when it is pulled to the right, for the left side of the Z-Y plane. The opposite of the movement directions is valid for the other side of the Z- Y plane.

The forces that reach to the cover (20) as a result of external effects such as the wind will decrease while being transferred to the movement handle (30) and it makes the cover (20) to be closed or opened in a difficult manner.

In addition to the manual opening of the said movement handle (30), in a different alternative of the invention, the ventilation cover mechanism (100) can be opened and closed by means of a button by connecting an electric, pneumatic or hydraulic element that will give linear movement to the movement handle (30).