Device for preventing wheel stopper from being left uncollected
A dedicated wheel chock storage section with integrated sensors and alarms addresses the issue of forgotten wheel chocks, ensuring they are retrieved and preventing scattering and accidents.
Patent Information
- Application Number
- JP2024089865
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-12-15
- Estimated Expiration
- 2044-06-03
AI Technical Summary
Wheel chocks are often forgotten after use, leading to scattering inside vehicles, potential damage, and accidents, with existing measures like ropes and warnings being ineffective.
A dedicated wheel chock storage section with sensors and alarm devices, such as indicator lights, speakers, or electronic monitors, to alert drivers when chocks are not stored, integrated with the vehicle's ignition system.
Prevents wheel chocks from scattering and ensures they are retrieved by activating alarms, reducing accidents and vehicle damage.
Smart Images

Figure 2025182373000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a wheel chock recovery prevention device that prevents accidents caused by forgetting to recover wheel chocks. [Background technology]
[0002] A wheel chock, also called a wheel stopper or tire stopper, is a stopper that is clamped onto a vehicle's tire to prevent the vehicle from running away.
[0003] They are mainly installed when a work vehicle is stopped on the road, in order to reduce damage to the surrounding area caused by the vehicle running away due to forgetting to apply the handbrake when the work vehicle is stopped, or by a regular vehicle rear-ending the work vehicle.
[0004] An example of a wheel chock is shown in Figure 14. A wheel (tire) 101 mounted on a vehicle body has a tread portion 101a, and a wheel chock 102 has an inclined surface 102a that contacts this tread portion 101a and a handle portion 102b. The handle portion 102b may be a U-shaped handle.
[0005] The wheel chocks 102 are installed to prevent the vehicle from moving unintentionally. The wheel chocks 102 are removed to allow the vehicle to depart.
[0006] Generally, as described in Patent Document 1 below, the driver or guide removes the wheel chocks after confirming safety before setting off. [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-199731 Summary of the Invention [Problem to be solved by the invention]
[0007] Wheel chocks are used on a variety of vehicles, from standard to large. They are also made of various materials, such as rubber or iron, depending on the application. Figure 11 shows an example of a rubber wheel chock, and Figure 12 shows an example of a metal wheel chock.
[0008] To prevent forgetting to retrieve wheel chocks after use, measures were taken to prevent forgetting to leave them behind by attaching a rope to the wheel chock and tying it to the driver's side mirror or door.In addition, warning notices were created and pasted on the dashboard, etc., but these measures became meaningless and people still forgot to retrieve them.
[0009] In addition, since there is no dedicated storage box for wheel chocks, they end up scattered all over the car and in the cargo area.
[0010] Furthermore, as mentioned above, the driver or guide should remove the wheel chocks after confirming safety before setting off, but there is a risk that the driver may forget to retrieve the wheel chocks and depart the vehicle (i.e., leave the scene). Forgetting to retrieve the wheel chocks also includes leaving the removed wheel chocks on the road and leaving the vehicle.
[0011] Forgetting to retrieve wheel chocks can not only cause damage to the vehicle itself or its tires, but can also lead to accidents in which a following vehicle hits the forgotten wheel chock.
[0012] The object of the present invention is to provide a wheel chock recovery prevention device that eliminates the inconveniences of the above-mentioned conventional examples, prevents wheel chocks from scattering inside the vehicle or on the cargo bed by providing a dedicated storage section for wheel chocks, and further, issues an alarm to alert the driver that the wheel chocks have been forgotten to be recovered if the wheel chocks are not stored in the wheel chock storage section. [Means for solving the problem]
[0013] In order to achieve the above object, the present invention provides a wheel chock storage section formed in the interior or loading area of a vehicle as a place for retrieving wheel chocks, a sensor that turns on and off when a wheel chock is stored in the wall panel of the wheel chock storage section, and an alarm device that is activated by the on / off of the sensor installed in the vehicle. The ignition switch output for starting the automobile engine is used in combination with the on or off output of the sensor. The gist of this paper is as follows.
[0014] Secondly, the wheel chock storage section is formed as a wheel chock storage box.
[0015] Thirdly, the sensor is a limit switch whose contact switch protrudes from the inclined wall that is the wall panel of the wheel chock storage section, or the sensor is a non-contact sensor whose light-emitting / receiving section is installed facing a through hole formed in the inclined wall that is the wall panel of the wheel chock storage section.
[0016] Fourth, the gist is that the alarm device is an indicator light, a speaker or buzzer, or an electronic monitor with a dot matrix LED.
[0017] According to the present invention described in claim 1, a wheel chock storage section is formed inside the automobile or in the trunk as a place for collecting wheel chocks. Since many vehicles do not have a designated storage location for wheel chocks and are used by an unspecified number of people, it is possible to prevent wheel chocks from being scattered around the trunk, rear seat, passenger seat, trunk, etc., or from being left behind or lost.
[0018] Furthermore, this wheel chock storage section has a wall plate on which a sensor can be installed that turns on and off when the wheel chock is stored.
[0019] By turning on or off the sensor, an alarm device is activated to warn that the wheel chocks have not been stored in the storage section, and the driver can be alerted to the fact that the wheel chocks have been forgotten to be removed.
[0020] Furthermore, when the ignition switch is turned on to start the automobile engine, a warning that the wheel chocks are not stored can be displayed on the alarm device, ensuring greater reliability.
[0021] According to the present invention as set forth in claim 2, by forming the wheel chock storage section as a wheel chock storage box, a wheel chock storage section can be secured inside the vehicle or on the cargo bed simply by installing this wheel chock storage box, and the wheel chock storage box can be made to stand out inside the vehicle by being painted yellow, for example. Furthermore, it can be manufactured as a four-port type or a two-port type according to the number of wheel chocks installed on the vehicle, so that the optimal wheel chock storage box can be selected according to the usage situation of the wheel chocks.
[0022] According to the present invention described in claim 3, when a limit switch is used as a sensor, the contact switch is protruded from the inclined wall which is the wall panel of the wheel chock storage section, so that the contact switch can be reliably pressed by the tip of the wheel chock when storing the wheel chock while sliding along the inclined wall.
[0023] According to the present invention as set forth in claim 4, for strong steel wheel chocks such as those on signage vehicles, a non-contact sensor is used instead of a limit switch to avoid contact, thereby preventing sensor failure and improving durability.
[0024] According to the present invention as set forth in claim 5, the warning device is an indicator light that rotates and flashes, and when installed on the dashboard of the driver's seat of a vehicle or next to the rearview mirror, it can provide a powerful warning display.
[0025] According to the present invention as set forth in claim 6, the alarm device is a speaker or buzzer, so that a warning can be given by sound. Furthermore, if the alarm device is also used as an indicator light, a stronger warning can be given in two ways: sound and light.
[0026] According to the present invention as set forth in claim 7, the warning device is an electronic monitor with a dot matrix LED, which can display various text information, allowing warning messages to be concentrated in one place, and one of these messages can be a warning that the wheel chock is not stored. [Effects of the Invention]
[0027] As described above, the wheel chock forgetting recovery prevention device of the present invention can prevent wheel chocks from being scattered inside the vehicle or on the cargo bed by providing a dedicated storage section for wheel chocks, and further, if a wheel chock is not stored in this wheel chock storage section, an alarm can be sounded to alert the driver that the wheel chock has been forgotten to be recovered. [Brief explanation of the drawings]
[0028] [Figure 1]1 is an explanatory diagram showing an embodiment of a wheel chock recovery prevention device of the present invention. [Figure 2] FIG. 10 is a perspective view showing an example of a wheel chock storage box as a wheel chock storage section. [Figure 3] FIG. 10 is a perspective view showing another example of a wheel chock storage section. [Figure 4] FIG. 10 is a vertical cross-sectional side view showing an example of a wheel chock storage box as a wheel chock storage section. [Figure 5] FIG. 10 is an explanatory diagram of a limit switch. [Figure 6] FIG. 2 is a front view of the non-contact sensor. [Figure 7] FIG. 2 is a plan view of the light emitting / receiving section of the non-contact sensor. [Figure 8] 1 is a partial circuit diagram of a device for preventing forgetting to retrieve a wheel chock according to the present invention; [Figure 9] 1 is an overall circuit diagram of a device for preventing forgetting to retrieve a wheel chock according to the present invention; [Figure 10] FIG. 1 is a front view of an electronic monitor as an alarm device. [Figure 11] FIG. 1 is a perspective view of a rubber ring chock. [Figure 12] This is a perspective view of an iron ring chock. [Figure 13] FIG. 10 is a perspective view showing the iron ring clamp in use. [Figure 14] FIG. DETAILED DESCRIPTION OF THE INVENTION
[0029] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Figure 1 is an explanatory diagram showing one embodiment of a device for preventing a user from forgetting to retrieve a wheel chock according to the present invention, and in the drawing, 1 indicates a wheel chock.
[0030] The present invention provides a wheel chock storage section in the interior of an automobile or on the loading platform as a place for collecting wheel chocks 1, and this wheel chock storage section is formed as a wheel chock storage box 2 as shown in FIG.
[0031] The wheel chock storage box 2 is a hopper-type box whose interior is divided by an inclined wall 2a, and which has an opening at the top with a partition wall forming a triangular trapezoidal space into which the triangular trapezoidal wheel chock 1 can be inserted from the pointed end.
[0032] They are manufactured as a four-port type or a two-port type depending on the number of wheel chocks installed on the vehicle. (Figure 2 shows the two-port type.)
[0033] The bottom plate 2b of the wheel stopper storage box 2 is extended forward to form a support plate 2c for stable installation (see Figure 4).
[0034] As shown in Figure 3, in the case of a truck vehicle 3 such as a marked vehicle, the wheel chock storage section, which serves as a place to collect the wheel chocks 1, is configured as a wheel chock storage frame 8 in which a U-shaped opening frame 8a is attached to an obliquely placed mounting plate 8b, and a wheel chock (not shown) that can be slid onto the mounting plate 8b for storage is inserted into the opening frame 8a.
[0035] A window hole is provided in the inclined wall 2a, which is a wall plate of the wheel chock storage box 2, and a limit switch 5 is provided as a sensor that turns on and off when the wheel chock 1 is stored in the wheel chock storage box 2, with its contact switch 5a protruding from the window hole.
[0036] In the case of the wheel stopper storage frame 8, the limit switch 5 is provided on the back side of the mounting plate 8b by providing a window hole in the mounting plate 8b, and the contact switch 5a is provided so as to protrude from the window hole.
[0037] The limit switch 5 is explained in Figure 5. The movement of the operating plunger 5c driven by the contact switch 5a opens and closes the movable contact 5d. The operating plunger 5c is supported by a movable spring 5e and returned to its original position by a return spring 5f. In the figure, 5b is the connector part.
[0038] An indicator light 4 is installed on a dashboard 7 of the driver's seat of a vehicle, for example, as an alarm device that is activated by the on or off of the limit switch 5 serving as the sensor.
[0039] The indicator light 4 is preferably a colored light that rotates and flashes.
[0040] The indicator light 4 may be installed anywhere that is easy to see from inside the driver's seat, such as on the dashboard 7 of the vehicle or next to the rearview mirror 6.
[0041] The limit switch 5 as the sensor can also be replaced with a non-contact sensor 9 as shown in Figure 6, with its light-emitting / receiving part 9a facing a through-hole formed in the inclined wall (mounting plate 8b) which is the partition of the wheel stopper storage section.
[0042] The general rule for use is that after use, the wheel chock 1 is stored in the wheel chock storage box 2 or wheel chock storage frame 8, which is the wheel chock storage section, and the wheel chock 1 presses the contact switch 5a of the limit switch 5 to switch it off, or activates the non-contact sensor 9 to switch it off, and does not output to the indicator light 4 as an alarm device, so it is not activated.
[0043] On the other hand, if the wheel chock 1 is not stored in the wheel chock storage box 2 or the wheel chock storage frame 8, the contact switch 5a of the limit switch 5 is not pressed, or the non-contact sensor 9 is not activated and remains switched on, outputting to the indicator light 4 as an alarm device, activating it and warning that the wheel chock 1 has been forgotten to be stored.
[0044] In another embodiment, the alarm device is a speaker or buzzer 10. Figure 8 shows a circuit in which it is connected in parallel with the indicator light 4 so that both are activated.
[0045] In yet another embodiment, the alarm device is an electronic monitor 11 of a dot matrix LED as shown in FIG.
[0046] As with the indicator lamp 4, the electronic monitor 11 is installed in an easily visible location such as on the dashboard 7 of the driver's seat of the vehicle.
[0047] The electronic monitor 11 can display various text information, which allows warning messages to be concentrated in one place, and one of these messages can be a warning that the wheel chock 1 is not stored.
[0048] In another embodiment, a sensor is installed in the wheel chock storage section which turns on and off when the wheel chock is stored, and the alarm device is activated when the sensor turns on or off, but further conditions are set, for example, when the vehicle engine is started.
[0049] As an example, the ignition switch output for starting an automobile engine is used in combination with the sensor's on / off output. Figure 9 shows the circuit diagram. [Explanation of symbols]
[0050] 1... Wheel chock 2... Wheel chock storage box 2a…Slanted wall 2b…Bottom plate 2c... Support plate 3... Truck vehicle 4...Indicator light 5...Limit switch 5a...Contact switch 5b...Connector section 5c...Operating plunger 5d...Moving contact 5e...moving spring 5f...return spring 6...Rearview mirror 7...Dashboard 8... Wheel stopper storage frame 8a... Opening frame 8b...Placement plate 9...Non-contact sensor 9a...Light emitting / receiving unit 10...Speaker or buzzer 11...Electronic monitor 12...Ignition switch output 101... Wheel (tire) 101a... Tread portion 102... Wheel stopper 102a... Inclined surface 102b...Handle part
Claims
1. This wheel chock recovery prevention device is characterized by forming a wheel chock storage section inside the automobile or on the loading platform as a place for recovering wheel chocks, installing a sensor on the wall panel of the wheel chock storage section that turns on and off when a wheel chock is stored, and installing an alarm device inside the automobile that is activated when the sensor turns on or off.
2. 2. The device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the wheel chock storage section is formed as a wheel chock storage box.
3. 2. The device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the sensor is a limit switch whose contact switch projects from the inclined wall that is the wall plate of the wheel chock storage section.
4. 2. A device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the sensor is a non-contact sensor, and its light emitting / receiving portion is provided facing a through hole formed in the inclined wall which is the wall plate of the wheel chock storage portion.
5. 2. The device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the warning device is an indicator light.
6. 2. The device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the alarm device is a speaker or a buzzer.
7. 2. The device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the alarm device is an electronic monitor with a dot matrix LED.
8. 2. The device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the output of an ignition switch for starting an automobile engine is used in combination with the on or off output of the sensor.
9. 2. The device for preventing forgetting to retrieve wheel chocks according to claim 1, wherein the output of the release of the parking brake of the automobile is used in combination with the on or off output of the sensor.
Citation Information
Patent Citations
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