JP3050093U - Warning device for forgetting to lower the elevator - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To notify a driver or the like of forgetting to lower a lifting section of a dump truck carrier or a crane boom, etc., and to prevent a contact member from falling or a fall of a vehicle lifting and lowering section lowering notifying device main body. SOLUTION: A contact member 6 which comes into contact when the elevating unit is at or above a predetermined height, a detecting means 3 for detecting contact of the elevating unit with the contact member 6, and a detection signal from the detecting means 3 Notification means 8 and 9 are provided for notifying that the lifting unit is in the state of being forgotten to be lowered. The contact member 6 has a moving range corresponding to the stopping distance of the vehicle. When the elevating unit comes into contact with the contact member 6, the detecting unit 3 detects the contact and outputs a detection signal, and the notifying unit 3 connected to the detecting unit 6 by a signal line is operated, so that the elevating unit is activated. The driver can be informed that he has forgotten to lower it. At this time, since the contact member 6 has the moving range, the device main body can be prevented from falling down.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention informs the driver, etc., of forgetting to lower the lifting section of vehicles such as dump trucks and crane trucks that have lifting sections such as luggage carriers and booms, and removes obstacles at high places such as transmission lines and telephone lines. The present invention relates to a warning device for forgetting to lower the elevating part of a vehicle in order to prevent damage or cutting.

[0002]

[Prior art]

 Vehicles such as dump trucks and crane trucks, which have lifting parts such as luggage carriers and booms, leave the elevators at the construction site, etc., with the lifting parts forgotten to be lowered. Accidents may occur, such as damage to or breakage of obstacles such as lines by contacting the lifting section with obstacles. And there are devices to prevent such accidents. In this device, when the vehicle is inadvertently advanced, a contact member that contacts the elevating section in front of a place where there is an obstacle such as a power line or a telephone line and informs a driver that the driver has forgotten to lower the elevating section. There is. The contact member is supported or fixed by columns from both sides and is held substantially horizontally. Also, one end of some wires is fixed to the tip of the support, and the other end of the wire is anchored to the ground around the support, respectively, so that the support is substantially upright, and the contact member and the support on both sides are provided. This constitutes a general shape of the vehicle body for raising and lowering the lowering portion of the vehicle, which has a U-shape rotated by 90 degrees counterclockwise.

[0003]

[Problems to be solved by the invention]

 However, according to the above-described conventional method, when an elevating part such as a dump truck bed or a crane boom comes into contact with the contact member, for example, the contact member falls on the driver's seat or a surrounding worker, or the support member and The contact member was overturned as a unit. Before the fall or fall, it was difficult for the driver and especially the surrounding workers to recognize that contact had occurred.

Accordingly, an object of the present invention is to notify a driver or the like of contact between a lifting member such as a dump truck carrier or a crane boom and a contact member, and to notify the driver of a falling contact member or a vehicle lifting / lowering portion and a forgotten lowering device body. It is an object of the present invention to provide a device for notifying that the vehicle has been lifted and lowered.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the invention according to claim 1 is an informing device for forgetting to lower the elevating part of a vehicle having an elevating part such as a bed or a boom, wherein the elevating part is at a predetermined height or higher. A contact member that comes into contact when the vehicle passes through; a detection unit that detects contact of the lifting unit with the contact member and outputs a detection signal; and a state in which the lifting unit is forgotten to be lowered by the detection signal from the detection unit. And a notification device for forgetting to lower the elevating part of the vehicle.

Here, the contact member may be, for example, a wire, but may be any other flexible member having a linear shape such as a rope. Further, the length of the contact member may be appropriately changed depending on the width of the range in which it is desired to detect forgetting to lower the elevating unit. As the detecting means, for example, a limiter switch is turned on, but other means, such as using a pressure sensor or an infrared sensor, may be used. When a limiter switch is used as the detection means, a weight or the like for turning the switch lever of the limiter switch to the ON side is connected to one end of the contact member, and when the lifting / lowering portion of the vehicle comes into contact with the contact member, the switch lever is turned ON. Make sure that the limiter switch outputs the detection signal. As the notification means, for example, a rotating light or a siren can be cited, but in addition, for example, a buzzer or the like may be used. The notification means is connected to the detection means by a signal line, and is activated when a detection signal is output from the detection means.

[0007] As described above, according to the invention of claim 1, these vehicles can be mounted on a vehicle such as a dump truck or a crane truck with the lifting portions of the vehicles having a lifting platform such as a boom or the like forgotten. When passing through the place where the raising / lowering unit lowering notification device is provided, the lifting / lowering unit comes into contact with the contact member, and the detecting means detects the contact and outputs the detection signal. By operating the notification means connected by the line, it is possible to notify the driver or the like that the user has forgotten to lower the elevating unit. Then, the driver immediately recognizes that he has forgotten to lower the elevating unit, and can immediately stop the vehicle and lower the elevating unit. Therefore, it is possible to prevent damage or cutting of obstacles at high places such as transmission lines and telephone lines. Surrounding workers can also evacuate in case of emergency.

[0008] The invention according to claim 2 is the device for forgetting to lower the elevating part of the vehicle according to claim 1, wherein the device corresponds to a moving distance of the vehicle from the notification to the stop of the vehicle. The contact member has the moving range described above.

Here, for example, a wire is used as the contact member, one end of which is a fixed end and the other end is a free end. Then, when the contact member is brought into contact with the elevating section and then pulled by the elevating section, the contact section moves and the free end moves. In addition, a specific configuration is arbitrary as long as the contact member can move as the elevating unit moves.

Thus, according to the invention of claim 2, the contact member has a moving range corresponding to a moving distance of the vehicle from the notification to the stop of the vehicle. The contact member can move as the elevating unit moves in the traveling direction until the vehicle stops after the elevating unit contacts the contact member.

According to a third aspect of the present invention, there is provided the alarm device for forgetting to lower the elevating part of the vehicle according to the first or second aspect, wherein one end of the contact member is fixed to a high place. A fixing means, and a height support means for slidably supporting a middle portion between both ends of the contact member at a high place, and a position adjusting member for adjusting each fixing position. , Are characterized.

The high place fixing means includes, for example, a ring fixed to a high place by being connected to the contact member by a snap hook provided at one end of the contact member, and a ring bolt. Anything that has a function of fixing one end of the contact member at a high place may be used. Further, as the high place support means, for example, a ring or the like which is fixed at a high place, passes the contact member through its ring, and slidably supports a middle portion between both ends of the contact member at a high place so as to be slidable. However, any other member such as a ring bolt having a function of suspending and supporting a middle portion between both ends of the contact member at a high place may be used. Here, the high place is the height at which obstacles at high places such as power transmission lines and telephone lines are installed, and at a level enough to reach the lifting section such as the dump truck bed and the crane boom of the crane truck. Refers to height. Further, as the position adjusting member, a member having a cylindrical shape having a slightly larger inner diameter than the column, moving up and down along the column, and being fixed to a position to be fixed with a screw or the like can be used. Any other device may be used as long as it has a function of adjusting the fixing position of the high place fixing means and the high place support means.

As described above, according to the invention of claim 3, one end of the contact member can be fixed at a high place by means of the high place fixing means, and the contact member can be fixed by a high place support means. The middle part between both ends can be slidably suspended and supported at a high place. And, depending on the position adjusting member, the fixing position of the high place fixing means and the high place supporting means can be adjusted, so that the height at which the contact member is installed can be changed as necessary.

[0014]

[Embodiment of the invention]

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a device for notifying a user of a vehicle that the elevator is lowered will be described with reference to FIGS. 1 and 2.

FIG. 1 is a perspective view showing an application example of a device for notifying that a vehicle is to be lifted and lowered, and FIG. 2 is a perspective view showing an operation for detecting forgetting to lower a lift. First, reference numerals 1L and 1R denote posts, which are supported upright by anchoring the other ends of the wires 2, 2,. A limiter switch 3 is fixed to the lower part of the column 1R, and serves as a detecting means for detecting that the user has forgotten to lower the lifting unit. When the switch lever 3s of the limiter switch 3 falls to the ON side, a detection signal is output to the signal line 3a. The signal line 3a branches on the way and is led to the rotating light 8 and the siren 9 which are notification means. Then, when the detection signal is transmitted, these notification means operate.

On the other hand, reference numeral 6 denotes a contact member which comes into contact with the elevating unit when the vehicle passes while leaving the elevating unit of the vehicle, such as a dump truck bed or a crane boom of a crane truck, forgotten to lower. Snap hooks (not shown) are provided at both ends of the contact member 6, respectively. One of the snap hooks is fixed to a ring 5L which is means for fixing at a high place, and is fixed at a high place. Then, the other end of the contact member 6 is passed through a ring 5R which is a means for supporting a high place, and then is fastened to a weight 7 which is integral with a ring (not shown) for fastening the other of the snap hooks. That is, the weight 7 is suspended from the ring 5R fixed to the support 4R via the contact member 6 having one end fixed to the ring 5L. Therefore, at this time, when the portion of the contact member 6 extending from the ring 5R to the ring 5L is pulled, the weight 7 rises. The length of the contact member 6 is set such that the switch lever 3 s of the limiter switch 3 falls to the ON side due to a slight rise of the weight 7 when the lifting unit comes into contact with the contact member 6. Note that the length of the contact member 6 is appropriately changed according to the installation position of the columns 1L and 1R, in other words, according to the range in which it is desired to detect forgetting to lower the elevating unit.

Further, position adjusting members 4L and 4R provided with a ring 5L as a high place fixing means and a ring 5R as a high place support means are fixed to the high places of the columns 1L and 1R by screws 4nL and 4nR, respectively. . Here, the position adjusting members 4L and 4R have a cylindrical shape having an inner diameter slightly larger than the diameter of the columns 1L and 1R, and when the fixing by the screws 4nL and 4nR is loosened, the positions of the columns 1L and 1R are respectively reduced. It moves up and down along. Then, the height of the position adjusting members 4L and 4R is adjusted, and the contact member 6 is installed at a desired height.

Next, the details of the operation of detecting and notifying the forgetting to lower the elevating unit according to the above-described device for notifying that the elevating unit is to be lowered will be described. First, when a vehicle such as a dump truck or a crane vehicle passes below the raising / lowering unit lowering notifying device while the raising / lowering unit such as a loading platform or a boom is forgotten to be lowered, the lifting / lowering unit comes into contact with the contact member 6. . When the vehicle further moves forward, the contact member 6 is pulled in the traveling direction of the vehicle, so that the weight 7 suspended at one end of the contact member 6 rises along the column 1R. When the switch lever 3s of the limiter switch 3 is turned to the ON side, a detection signal is output to the rotating light 8 and the siren 9 through the signal line 3a. Then, the rotating lamp 8 starts lighting and rotating, and an alarm is issued from the siren 9.

Therefore, the driver can immediately recognize that he has forgotten to lower the elevating unit and can step on the brake. At this time, there is a slight advance due to the inertia force before the vehicle stops, but the side of the contact member 6 to which the weight 7 is connected is a free end and can be further raised. Can be stopped, and the pillars 4L and 4R do not have to fall down. Then, the driver can lower the elevator. When the switch lever 3s of the limiter switch 3 is turned to the off side, the rotary light 8 and the siren 9 stop operating.

[0020] As described above, the forgetting to lower the elevating unit is notified by using the device for notifying that the elevating unit is lowered, so that obstacles at high places such as transmission lines and telephone lines can be broken or cut. Etc. can be prevented beforehand. Also, surrounding workers can evacuate just in case. Since the contact member 6 has a moving range corresponding to the moving distance of the vehicle from the notification by the rotating light 8 or the siren 9 to the stop of the vehicle, the strut 4 does not fall down. Further, by adjusting the heights of the position adjusting members 4L and 4R, it is possible to use the device for notifying the user of the vehicle that the elevator is not lowered in correspondence with various types of vehicles.

In this embodiment, the position adjusting member is used so that the fixing position of the high place fixing means and the high place supporting means can be adjusted. However, the position adjusting member can be adjusted without using the position adjusting member. May not be possible. In addition, the configuration is such that three wires are used for each of the pillars to be substantially upright, but four or more wires may be used.

[0022]

[Effect of the invention]

 As described above, according to the device for forgetting to lower the elevating part of the vehicle according to the invention of claim 1, the vehicle with the elevating part of the vehicle having the elevating part such as the dump truck and the crane truck or the boom is forgotten. When these vehicles pass under the device for notifying that the elevator has been lowered, the driver or the like can be notified of the forgetting to lower the lift. Then, the driver immediately recognizes that he has forgotten to lower the elevator, and can immediately stop the vehicle and lower the elevator. Therefore, it is possible to prevent damage or cutting of obstacles at high places such as transmission lines and telephone lines. Also, surrounding workers can evacuate in case of emergency.

According to the device for notifying the user of elevating the lowering part of the vehicle according to the invention of claim 2, in addition to the effect obtained by the invention of claim 1, the contact member has a movable range. Since the contact member can move as the elevating unit moves in the traveling direction until the vehicle stops after the elevating unit comes into contact with the contact member, it is possible to avoid destruction or overturn of the device. Benefits are obtained.

Further, according to the device for forgetting to lower the elevating part of the vehicle according to the invention of claim 3, in addition to the effect obtained by the invention of claim 1 or 2, the means for fixing at a high place is also provided. Can fix one end of the contact member at a high place, and, depending on the high place support means, can slidably support a middle part between both ends of the contact member at a high place, and In addition, depending on the position adjusting member, the fixing position of the high place fixing means and the high place supporting means can be adjusted, so that the advantage that the height at which the contact member is installed can be changed as required is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of application of a forgotten lowering notification device of a vehicle.

FIG. 2 is a perspective view showing an operation for detecting forgetting to lower a lifting unit.

[Explanation of symbols]

 1L, 1R Post 2L, 2R Wire 3 Limiter switch 3a Signal line 3s Switch lever 4L, 4R Position adjusting member 4nL, 4nR Screw 5L, 5R Ring 6 Contact member 7 Weight 8 Rotating light 9 Siren

Claims (3)

[Utility model registration claims] 1. A notifying device for forgetting to lower a lifting part of a vehicle having a lifting part such as a bed or a boom, and a contact member which contacts when the vehicle passes while the lifting part is at a predetermined height or higher. Detecting means for detecting contact of the elevating unit with the contact member and outputting a detection signal; and notifying means for notifying that the elevating unit is in a state of being forgotten to lower by a detection signal from the detecting means. A warning device for forgetting to lower the elevating part of the vehicle. 2. The lowering device according to claim 1, wherein the contact member has a moving range corresponding to a moving distance of the vehicle from the notification to the stop of the vehicle. Forget notification device. 3. A high position fixing means for fixing one end of the contact member at a high position, and a high position support for slidably supporting a middle portion between both ends of the contact member at a high position. 3. The device for notifying the user of a vehicle that the elevator has been lowered, according to claim 1, wherein the means includes a position adjusting member for adjusting each fixed position.