JP4453002B2 - Shielding device - Google Patents

Description

  The present invention relates to a shielding device used for a sunroof or the like of an automobile. More specifically, the present invention relates to a shielding member that can open and close the opening of the ceiling member, a drive unit that operates the shielding member, a detection unit that detects a load during the closing operation of the shielding member, and a drive unit The present invention relates to an automobile shielding device including a control unit that performs control.

  As a shielding device (sunshade device) used for opening and closing a sunroof surface of an automobile, one that is electrically slid and moved is generally known. The shielding device is required to have a high light shielding property that reliably blocks light from the sunroof, a high sound insulation property that reduces noise from the outside of the vehicle, and an aesthetic appearance when closed. In addition, the shielding device is also required to have safety for preventing a finger or a foreign object from being caught by mistake.

  In the conventional shielding device, in order to ensure safety, a detection sensor for detecting a load at the time of sliding movement is provided, and when the detection sensor detects an overload state by pinching a finger or a foreign object, the movement of the shielding member is prevented. Control to stop or reverse was performed (for example, refer to Patent Document 1).

  However, the overload state is not detected only when a finger or a foreign object is caught as described above. For example, the front end portion of the shielding member is in contact with the opening edge portion of the ceiling member and is in a fully closed state. It is also detected when In this case, it is necessary not to stop or reverse the movement of the shielding member. Therefore, in the shielding device, it is necessary to clearly distinguish the overload state due to the pinching of a finger or a foreign object and the other overload state.

  Therefore, in the conventional shielding device, a dead zone that does not detect the load information from the detection sensor is set before the closing dimension, or a pinching load that is a criterion for determining that the load is overloaded before the closing dimension. Is set larger than usual, and measures are taken such that the load detected by the contact between the front end portion of the shielding member and the opening edge of the ceiling member is not determined to be caught.

  As an example, FIG. 6 shows a cross-sectional view of a main part of a shielding device 200 according to the prior art. The shielding device 200 includes a shielding member 30, a ceiling member 40, a drive unit (not shown), and the like. Here, the contact surface A of the contact portion 31 of the shielding member 30 is set to a height position substantially the same as the plane on which the shielding member 30 slides.

  6A shows a case where the shielding member 30 is in a state just before closing, and FIG. 6B shows a case where the shielding member 30 is in a closing state. Further, a region corresponding to the difference (Q−P) between the position P of the front end portion of the shielding member 30 in the state (a) and the position Q of the front end portion of the shielding member 30 in the state (b) is set as a dead zone. In this dead zone region, the load applied to the shielding member 30 is not detected. For this reason, when the shielding member 30 slides and reaches the state (a) that is the start point of the dead zone, the driving unit of the shielding device 200 is mechanically driven until the shielding member 30 reaches the state (b). Is going.

JP 2002-96640 A

However, if a dead zone is set just before the closing of the shielding member as in the prior art described above, the shielding member simply performs a mechanical operation in this region, so the load on the shielding member is detected. Fine control such as stopping the shielding member at an appropriate position becomes impossible. For this reason, conventionally, it has been difficult to ensure contact between the front end portion of the shielding member and the opening edge of the ceiling member, which is the final stage of the sliding operation. As a result, an excellent force is applied between the shielding member and the ceiling member, or a gap is created because the front end of the shielding member and the opening edge of the ceiling member are not sufficiently in contact with each other. Problems such as inability to obtain sexuality and aesthetics have occurred.

  In addition, when the setting value of the pinching load is set to be larger than normal before the closing dimension, it is necessary to distinguish between the normal pinching load and the load due to contact. However, in order to make such a distinction, an expensive touch sensor, a means for storing a plurality of sliding load values, and the like must be provided, which causes an increase in the cost of the shielding device.

  Therefore, the present invention has been made in view of the above problems, and the object of the present invention is to provide sufficient light shielding and sound insulating properties while ensuring safety so that fingers and foreign substances are not caught. And a reasonable shielding device having aesthetics.

A characteristic configuration of the shielding device according to the present invention includes a shielding member that can open and close an opening of a ceiling member, a drive unit that operates the shielding member, and a detection unit that detects a load during the closing operation of the shielding member. , and a control unit for controlling the driving unit, when detecting the detection portion load greater than or equal to the preset, the control region where the control unit performs a control to stop the closing operation of the shielding member the uncontrolled area without such stop control, a shielding apparatus connected toward the closing side direction of the shield member, the end portion of the control region, and the closing-side end portion of the shielding member The ceiling member is in a non-contact state , and the closed-side tip is located in an overlapping range above the ceiling member, and among the shielding members operated in the non-control region, Close side tip or Total width of the portion from the closed side tip a predetermined distance is in a point that is configured to be a contact to the fully closed state to the upper surface of the ceiling member.

In the case of the shielding device of this configuration, when the detection unit detects a load exceeding a preset value, the control unit performs such stop control on the control region in which control for stopping the closing operation of the shielding member is performed. without uncontrolled area, since the connected toward the closing side direction of the shield member, it is not necessary to provide an expensive touch sensor and, means or the like for storing a plurality of sliding load value, to reduce the cost It becomes possible.

Further, in the shielding device of this configuration, the end portion of the control region is located in a state where the closing side tip portion of the shielding member and the ceiling member are not in contact with each other , and the closing side tip portion is positioned above the ceiling member. It is provided within the overlapping range . At this time, if there is no increase in the load on the shielding member before the ceiling member and the shielding member have the above positional relationship, a finger or a foreign object cannot be caught. As described above, since the pinching of a finger or a foreign object does not occur, safety can be ensured.

  Further, in the state after the above positional relationship, the control unit does not need to perform stop control of the shielding member, and therefore can be set as a non-control region. In this non-control region, the control unit only needs to control the drive unit so that the shielding member comes into contact with the ceiling member, so that the control in this region becomes very easy. Furthermore, among the shielding members operating in the non-control region, the entire width of the closed-side distal end portion or a portion separated by a predetermined distance from the closed-side distal end portion can contact the ceiling member, so that the ceiling member opening portion can be reliably Shading and sound insulation can be achieved.

In the shielding apparatus of this invention, it is also possible to form the contact part contact | abutted to the said ceiling member so that it may protrude below from the said shielding member.

  With the shielding device of this configuration, the contact portion that contacts the ceiling member is formed to protrude from the shielding member, thereby minimizing the gap between the ceiling member and the shielding member that can be seen from the passenger side when the shielding member is closed. Therefore, it is possible to give a good aesthetic appearance to the exterior appearance of the ceiling in the vehicle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the structure described in the following embodiment and drawing.

  FIG. 1 is a cross-sectional view of a shielding device 100 of the present invention. 1A shows a fully opened state of the shielding device 100, FIG. 1B shows a state immediately before the shielding device 100 is fully closed, and FIG. 1C shows a fully closed state of the shielding device 100. The shielding device 100 includes a ceiling member 1, a shielding member 2, a drive unit 3, a detection unit 4, and a control unit 5. Note that the controller 5 is not hindered at any place. Hereinafter, each component will be described.

  The ceiling member 1 constitutes a part of the lining of the roof portion in the automobile. The ceiling member 1 forms an opening 10 along the shape of the sunroof glass panel 20.

  The shielding member 2 is a member that opens and closes the opening 10, and includes a substrate 12 and an exterior material 13. The size and shape of the shielding member 2 are formed to be at least larger than the contour of the opening 10. Further, the shielding member 2 is located above the ceiling member 1, and when the shielding member 2 closes the opening 10, the shielding member 2 and the ceiling member 1 are overlapped. It has become.

The shielding member 2 is driven to slide by the drive unit 3. Here, the drive part 3 is demonstrated in detail using FIG.
FIG. 2 is a plan view of the shielding device 100 of the present invention. A pinion gear 3 a is connected to the drive unit 3. Geared wires 15 are attached to both ends of the shielding member 2, and the geared wires 15 are engaged with the pinion gear 3a. In this way, both the geared wires 15 are pushed and pulled by the single drive unit 3, and the shielding member 2 is slid in the front-rear direction. A general-purpose electric motor or the like can be used for the drive unit 3. Moreover, you may provide a reduction gear between the drive part 3 and the pinion gear 3a as needed.

The detection unit 4 detects a load that the shielding member 2 receives during the closing operation. As the load, for example, a load caused by an occupant accidentally pinching a finger, a load pinching foreign matter such as luggage, and the like are assumed. The detection unit 4 may be configured to directly detect a load by a pressure sensor or the like, or may employ various configurations such as a monitor that monitors a decrease in the rotational speed of the drive unit 3.
Moreover, the detection part 4 produces | generates the load information based on the detected load, and transmits this to the control part 5 mentioned later.

The control unit 5 controls the drive unit 3 based on the load information. The control unit 5 has a load threshold, and can distinguish between a control region and a non-control region connected in the direction toward the closing side of the shielding member 2. Here, the load threshold value is a minimum value at which the closing operation of the shielding member 2 should be stopped when the load increases due to, for example, foreign matter being caught. The control region is a region in which the control unit 5 acquires load information and performs stop control of the shielding member 2 among the regions where the shielding member 2 performs the closing operation, and the non-control region is the shielding member 2. Is a region in which the control unit 5 does not perform stop control based on the load information. Specifically, a region corresponding to the difference (Y−X) between the position X of the front end portion of the shielding member 2 in FIG. 1A and the position Y of the front end portion of the shielding member 2 in FIG. It is a region, and the front side of the vehicle body from the position Y is a non-control region. When the load applied to the shielding member 2 within the control region exceeds the load threshold, the control unit 5
The drive unit 3 is controlled so as to stop the shielding member 2. Thereby, in a control area, a finger | toe, a foreign material, etc. are prevented from being pinched | interposed and safety | security is ensured. The configuration of the control unit 5 may be a dedicated hardware such as a CPU incorporated in the shielding device 100, but may be configured to be connected to an external computer or the like and controlled from the outside. is there.

Next, the operation until the shielding member 2 is slid by being driven by the driving unit 3 and comes into contact with the ceiling member 1 will be described with reference to FIGS. 1 and 3 described above.
FIG. 3 is a cross-sectional view showing a main part of the shielding device 100 of the present invention. In FIG. 3, (a) shows a state where the shielding member 2 is in the process of moving to the closed state, (b) shows a state immediately before full closing and is at the end point of the control region, and (c) shows all the states. Indicates the closed state.

  The control unit 5 continues to acquire the load information from the detection unit 4 until the shielding member 2 moves to the state of (b) through the state of FIG. When the shielding member 2 is in the state of FIG. 3B, the moving surface B of the front end portion of the shielding member 2 is set above the contact surface A of the shielding member 2 to the ceiling member 1, so that the contact surface Before A comes into contact with the ceiling member 1, the moving surface B is positioned in front of the ceiling member opening position C, and the moving surface B and the upper surface D of the ceiling member 1 are in a non-contacting overlapping relationship. If there is no increase in the load on the shielding member 2 before the ceiling member 1 and the shielding member 2 are in the above positional relationship, a finger or a foreign object cannot be caught. Further, as shown in FIG. 3B, in a state where the moving surface B of the front end portion of the shielding member 2 and the upper surface D of the ceiling member 1 are overlapped, pinching of fingers or foreign matters cannot occur. Safety can be ensured.

  Moreover, in the state after FIG.3 (b), since it becomes unnecessary for the control part 5 to acquire the load information from the detection part 4, it can be set as a non-control area | region. In this non-control region, the control unit 5 only moves the shielding member 2 to the state shown in FIG. 3C and controls the driving unit 3 so that the contact surface A and the upper surface D of the ceiling member 1 are in contact. Therefore, control in this region is very easy. In addition, since the entire width of the part of the shielding member 2 operated in the non-control region, which is a predetermined distance away from the closed end, can contact the ceiling member 1, reliable shielding of the ceiling member opening 10 and Sound insulation can be achieved.

  Since the movement control from FIG. 3B to FIG. 3C performed by the control unit 5 is performed in the non-control region, the control unit 5 normally does not receive load information from the detection unit 4. In this non-control region, the control unit 3 only needs to move the shielding member 2 by a preset distance, for example, and complicated calculation control is unnecessary. Therefore, in the shielding device of the present invention, it is not necessary to provide an expensive touch sensor, a means for storing a plurality of sliding load values, and the like, and the cost can be reduced.

  Further, the distance from the position E of the front end portion of the shielding member 2 to the contact surface A is preferably set to about 30 mm in consideration of an error in the sliding amount of the shielding member 2 and the like. That is, even if the movement (movement amount) of the geared wire 15 attached to both ends of the shielding member 2 is not accurate, it is easy to achieve the state of FIG. 3B if the distance is 30 mm. Furthermore, if the shielding member 2 is further moved from the state of FIG. 3B by a maximum of 30 mm, the state of FIG. 3C can be reliably achieved.

  By the way, in the shielding apparatus 100 of this invention, the contact part 11 contact | abutted to the upper surface D of the ceiling member 1 is provided in the shielding member 2 so that it may protrude in the ceiling member 1 side. With this configuration, when the shielding member 2 is closed, the gap between the ceiling member 1 and the shielding member 2 that can be seen from the passenger side can be minimized, so that the appearance of the ceiling in the vehicle has better aesthetics. There is an advantage that can be made.

  Further, in order to reliably achieve such good light-shielding properties, sound-insulating properties, and aesthetics, as shown in FIG. 2, the abutting portions 11 may be provided without gaps over the entire width direction of the shielding member 2. The contact portion 11 shown in FIG. 2 is most typical, and has a shape in which a position of about 30 mm is projected downward from the tip of the shielding member 2.

<Another embodiment>
The form of the contact part 11 provided in the shielding device 100 of the present invention or the contact structure between the ceiling member 1 and the shielding member 2 is not limited to the form shown in FIGS. be able to.

  For example, the form of the contact portion 11 can be formed as shown in FIGS. (A) shows a structure in which the core member 14 is inserted between the substrate 12 of the shielding member 2 and the exterior material 13 to form the contact portion 11. (B) shows the contact portion 11 formed by projecting the exterior material 13 of the shielding member 2 downward. (C) shows the contact portion 11 formed by projecting the substrate 12 and the exterior material 13 of the shielding member 2 downward. Thus, if the contact part 11 is the structure which protruded the place of predetermined distance from the front-end | tip part of the shielding member 2 to the ceiling member 1 side, there can exist an effect similar to the said embodiment. .

  1 to 4, the contact portion 11 is provided on the shielding member 2, but the contact portion 11 may be provided on the ceiling member 1 side.

  For example, FIG. 5A shows the contact portion 11 formed by projecting the upper surface of the ceiling member 1 toward the shielding member 2. (B) is a structure in which the contact portion 11 is formed by an elastic member 50 in the back of the ceiling member 1, for example. (C) is a structure in which the ceiling member 1 is folded back and the tip portion thereof protrudes toward the shielding member 2 to form the contact portion 11. As is apparent from FIGS. 5A to 5C, in short, the control unit 5 can acquire load information until the shielding member 2 and the ceiling member 1 overlap in a non-contact manner, and thereafter It is important that both can reliably contact and the opening 10 can be closed. With such a configuration, it is arbitrary which member the contact 11 is provided on.

  The shielding device of the present invention can be used with various sunroofs or alone. Examples of the application include a glass panel opening / closing type or non-opening / closing type electric sunshade unit, a multi-plate sunshade unit, and the like.

Sectional view of the shielding device of the present invention Plan view of the shielding device of the present invention Sectional drawing which shows the principal part of the shielding apparatus of this invention Sectional drawing of the principal part of the shielding member by another embodiment Sectional drawing of the principal part of another embodiment which provided the contact part in the ceiling member side Sectional view of the main part of a shielding device according to the prior art

DESCRIPTION OF SYMBOLS 1 Ceiling member 2 Shielding member 3 Drive part 4 Detection part 5 Control part 100 Shielding device

Claims (2)

A shielding member that can open and close the opening of the ceiling member;
A drive unit for operating the shielding member;
A detection unit for detecting a load during the closing operation of the shielding member;
A control unit for controlling the drive unit,
When detecting the detection portion load greater than or equal to the preset, the control region where the control unit performs a control to stop the closing operation of the shield member, the non-control area without such stop control A shielding device connected in the direction toward the closing side of the shielding member,
The end of the control region, wherein a closed side leading end portion of the shield member and the ceiling member in a non-contact state, and in the range in which the closing-side tip overlap is positioned above of the ceiling member While providing
Configuration wherein one of said shielding member that is operated in a non-control region, so that the full width of a site distant from its closed side leading end portion or the closing-side tip by a predetermined distance is abutted to the fully closed state to the upper surface of the ceiling member A ceiling opening shielding device. The ceiling opening shielding device according to claim 1, wherein a contact portion that contacts the ceiling member is formed so as to protrude downward from the shielding member.

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