Open / close detection device
The opening/closing detection device integrates switches within the striker protection unit, addressing the need for additional operation parts by ensuring safe and cost-effective detection of double-hinged vehicle doors without internal interference.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DAIMLER TRUCK AG
- Filing Date
- 2024-10-15
- Publication Date
- 2026-04-27
AI Technical Summary
Existing methods for detecting the opening and closing of double-hinged vehicle doors require additional configurations, such as operation parts on one door to activate a detection switch on the other, leading to potential obstacles during boarding and alighting.
An opening/closing detection device utilizing a striker protection portion and an overlapping portion with integrated switches, where the switch operation is prevented from the inside by the striker protection unit, allowing for a simple and safe configuration without additional components.
The device ensures safe and cost-effective detection by integrating the switch operation within the existing striker protection unit, preventing unintended contact and reducing structural complexity and costs.
Smart Images

Figure 2026069857000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an opening / closing detection device.
Background Art
[0002] Conventionally, as a vehicle door, a double-opening type opening / closing door provided at the rear of a vehicle body has been proposed. For example, Patent Document 1 discloses a vehicle having a back door that can be opened and closed to the left and right.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] As a method for detecting the opening and closing of a double door (two-opening door), there is a method of detecting the proximity or contact of both doors. When a detection switch is provided on the inner panel of one door (for example, the right door), a method of newly providing an operation part such as a plate for pressing the detection switch on the vehicle body or the other door (for example, the left door) can be considered. However, in that case, in order to press the detection switch provided on the other door, providing a separate operation part requires an additional configuration and is expected to cause inconvenience such as an obstacle during boarding and alighting.
[0005] The present disclosure aims to provide a safe opening / closing detection device with a simple configuration.
Means for Solving the Problems
[0006] The present invention has been made to solve at least a part of the above problems and can be realized as the following aspects or application examples.
[0007] The opening / closing detection device according to this application example comprises: a striker protection portion that protrudes from the free end of the first door panel on one side of a vehicle's double doors, positioned on the interior side of the striker provided at the free end; an overlapping portion provided at the free end of the second door panel on the other side of the double doors, which overlaps the striker protection portion from the outside when the double doors are closed; a switch provided on one of the striker protection portion and the overlapping portion; and a switch operating portion provided on the other of the striker protection portion and the overlapping portion.
[0008] The opening / closing detection device in this application example can be constructed using an existing striker protection unit, and there is no need to newly install a switch operating unit for pressing the switch. Furthermore, operation of the switch is prevented from the inside of the vehicle by the striker protection unit. Therefore, a simple and safe opening / closing detection device can be constructed using existing functions. [Brief explanation of the drawing]
[0009] [Figure 1] This is a rear view of the vehicle with the back door closed. [Figure 2] This is a rear view of the vehicle with one side of the back door open. [Figure 3] This is an enlarged perspective view of the area around the striker protection section. [Figure 4] This is a cross-sectional view taken along line IV-IV around the switch structure of the vehicle shown in Figure 1. [Figure 5] This is an enlarged perspective view of section A in Figure 4, showing the area around the switch cover. [Modes for carrying out the invention]
[0010] 1. Vehicle configuration Figure 1 is a rear view of vehicle 1 with the back door 2 closed. Figure 2 is a rear view of vehicle 1 with one side of the back door 2 open. In this description of the embodiment, the front of Figure 1 is considered the rear of vehicle 1, and the opposite side is considered the front of vehicle. The left side of Figure 1 is considered the left of vehicle 1, and the opposite side is considered the right of vehicle 1.
[0011] Vehicle 1 is equipped with a rear door, a double-hinged door for vehicles, at the rear of the vehicle body. The rear door 2 comprises a right door panel 3 (first door panel) and a left door panel 4 (second door panel). The right door panel 3 can rotate via a hinge with an axis running vertically, located on the right side of the vehicle body. The left door panel 4 can also rotate via a hinge with an axis running vertically, located on the left side of the vehicle body. Therefore, the rear door 2 can be opened and closed in a double-hinged (or double-hinged) manner using the right door panel 3 and the left door panel 4.
[0012] As shown in Figure 2, the back door 2 is equipped with a locking mechanism 5 for the right door panel 3 and the left door panel 4. The locking mechanism 5 includes a striker 51, a striker protection part 52, and a switch 53 at the free end 31 of the right door panel 3 on one side of the back door 2. The locking mechanism 5 also includes a latch 54 that engages with the striker 51, an overlapping part 55 that overlaps the right door panel 3 and the vehicle 1 in the front-rear direction, and a switch operating part 56 at the free end 41 of the left door panel 4 on the other side of the back door 2.
[0013] Figure 3 is an enlarged perspective view of the structure around the striker protection section 52 as seen from the rear of the vehicle 1. Figure 4 is a cross-sectional view taken along line IV-IV around the switch structure 5. Note that the striker 51 and latch 54 are not shown in Figure 4. The striker 51 is an annular member positioned to protrude from the free end 31 of the right door panel 3 toward the left door panel 4.
[0014] The striker protection section 52 is positioned and protrudes from the inside of the vehicle, relative to the striker 51 provided on the free end 31 (see Figure 3). The striker protection section 52 is a roughly trapezoidal plate-like member that extends radially outward (towards the free end 31) with respect to the pivot axis of the right door panel 3. A buffer member 32 (seal member) is provided at the edge of the free end 31, including the striker protection section 52.
[0015] The switch 53 is a push-button switch provided on the facing surface 52a with the left door panel 4 (overlap portion 55) in the striker protection portion 52. When the switch 53 is pressed, it is an open / close detection switch that determines that the left door panel 4 has been closed with respect to the right door panel 3.
[0016] The latch 54 is provided at the free end portion 41 of the left door panel 4 and fixes the left door panel 4 in a closed state with respect to the right door panel 3 by engaging with the striker 51. The overlap portion 55 is formed so as to overlap the striker protection portion 52 from the outside of the vehicle in the closed state of the back door 2.
[0017] The switch operation portion 56 is provided as a facing surface with the right door panel 3 (striker protection portion 52) in the overlap portion 55.
[0018] FIG. 5 is an enlarged perspective view of a portion A of FIG. 4 showing the state of the periphery of the switch cover as viewed from the inside of the vehicle. The switch cover 532 is a protection member that houses and protects the cable 531 connected to the operated portion (pressed portion) of the switch 53. Since the cable 531 is wired from the inside of the vehicle of the right door panel 3, by protecting it with the switch cover 532, it is possible to reduce contact with the cable due to luggage in the vehicle or movement during boarding and alighting.
[0019] Thus, the opening / closing detection device 10 (see FIG. 4) of the back door 2 is formed by a configuration including the striker protection portion 52, the overlap portion 55, the switch 53, and the switch operation portion 56.
[0020] With such a configuration, when the right door panel 3 and the left door panel 4 are closed, the switch operation portion 56 presses the switch 53. Also, the space between the overlap portion 55 and the striker protection portion 52 is close enough that fingers or the like cannot be inserted from the inside of the vehicle, and is sealed by the buffer member 32. Therefore, in the state where the right door panel 3 and the left door panel 4 are closed, unintended contact or operation with the switch 53 can be prevented.
[0021] As described above, at the free end of the first door panel on one side of the vehicle's sliding door (back door 2), there is a striker protection part 52 that protrudes and is located on the inner side of the vehicle relative to the striker 51 provided at the free end, and a overlapping part 55 that is provided at the free end of the second door panel on the other side of the vehicle's sliding door and overlaps from the outside of the striker protection part 52 when the vehicle's sliding door is in the closed state, a switch 53 provided on one of the striker protection part 52 and the overlapping part 55, and a switch operation part 56 provided on the other of the striker protection part 52 and the overlapping part 55. The opening and closing detection device 10 including these components has been described.
[0022] Thereby, a door detection switch structure (switch or switch operation part) can be attached to an existing striker protection part, and an increase in the structure can be suppressed. Also, since the detection switch can be directly pushed in by one door, there is no need to provide another plate or the like for pushing in the switch 53. Therefore, an increase in cost can be suppressed.
[0023] Furthermore, as the switch operation part, there is no need to provide a protruding part on the door, so there is no risk of interference with such a protruding part when the door is opened, and the switch structure can be configured to be safe. Also, when the door is closed, the switch 53 covered from the inner side by the striker protection part cannot be touched from the inner side, so unintended operations and opening and closing can be prevented, and a safe opening and closing structure for the door can be configured.
[0024] Also, as described above, the description of each embodiment is completed, but the specific configurations shown herein are merely examples, and the aspects of the present invention are not limited to the configurations shown in each embodiment.
[0025] For example, in this embodiment, an example has been described in which a switch 53 is provided on the striker protection section 52 and a switch operating section 56 is provided on the overlapping section 55. However, it is also possible to have a configuration in which the switch operating section is provided on the striker protection section 52 and a switch is provided on the overlapping section 55. That is, it is possible to have a configuration in which a switch is provided on one of the striker protection section 52 and the overlapping section 55, and a switch operating section is provided on the other of the striker protection section 52 and the overlapping section 55.
[0026] Alternatively, the configuration provided on the right door panel 3 as the first door panel may be provided on the left door panel 4, and the configuration provided on the left door panel 4 as the second door panel may be provided on the right door panel 3.
[0027] Furthermore, although an example of switch 53 being a push-button switch has been described, it may also be other types of switches such as proximity switches or light-emitting / receiving switches.
[0028] Furthermore, as shown in Figure 4, the cable 531 is routed back into the right door panel 3 via the interior side of the right door panel 3. Therefore, the switch cover 532 may be configured with a cylindrical body for housing the cable 531 that is curved in a U-shape. This allows the switch cover 532 to be operated by gripping the handle from the interior side of the vehicle, or it can be used as a handle for body support. [Explanation of symbols]
[0029] 1 vehicle 2 Back door 3 Right door panel 4. Left door panel 5. Locking mechanism 10 Open / close detection device 31 Free end 32 Cushioning material 41 Free end 51 Striker 52 Strike protection section 52a Opposing surface 53 switches 54 Latch 55. Overlapping parts 56 Switch operation section 531 Cable 532 Switch Cover
Claims
[Claim 1] A striker protection portion is provided at the free end of the first door panel on one side of a vehicle's double door, and is positioned on the interior side of the vehicle than the striker provided at the free end. It is provided at the free end of the second door panel on the other side of the aforementioned double doors for the vehicle, and the overlapping portion overlaps the outside of the striker protection portion when the double doors for the vehicle are closed, A switch provided in either the striker protection section or the overlapping section, A switch operating section is provided on the other side of the striker protection section and the overlapping section, An open / close detection device equipped with the following features.
Citation Information
Patent Citations
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JP1977099563A