KR102471950B1 - A forklift equipped with a collision-preventing sensor for a personally - Google Patents

Abstract

An objective of the present invention is to provide a forklift equipped with an anti-collision sensor for a person capable of automatically stopping the movement and generating a warning sound without the driver's separate operation when a human shape is detected by front and rear sensors, and generating a warning sound when the shape of an object is detected, but without stopping the movement. The present invention relates to a forklift equipped with a mirror for eliminating blind spots, which may comprise a main body having a driver's seat and moving by manipulation of a driver seated in the driver's seat.

Description

A forklift equipped with a collision-preventing sensor for a personally}

The present invention relates to a forklift equipped with an anti-collision sensor for a person.

In general, a fork lift is provided with a fork, a ram, which is a device for loading heavy cargo, and a mast including a lifting device for lifting the fork and ram, It is used to lift or lower things, or to transport them to the required location.

However, in the conventional forklift, since the mast is located in front of the headlamp, light irradiated through the headlamp interferes, making it difficult to secure a smooth view.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for derivation of the present invention or acquired in the process of derivation of the present invention, and cannot necessarily be said to be known art disclosed to the general public prior to filing the present invention. .

Korean Patent Registration No. 10-2341069

An object of the present invention is to automatically stop the movement and generate a warning sound without a separate operation of the driver when the shape of a person is detected by the front sensor and the rear sensor, and generate a warning sound when the shape of an object is detected. The movement provides a forklift equipped with an anti-collision sensor for a person who can run without stopping.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A forklift truck equipped with an anti-collision sensor for a person according to an embodiment of the present invention may include a main body provided with a driver's seat and moved by manipulation of a driver seated in the driver's seat.

In the forklift equipped with an anti-collision sensor for a person according to an embodiment of the present invention, the forklift is formed in a '∩' shape and is formed to extend from the front to the rear of the main body, and on both sides of the top of the main body a frame unit provided; a frame cover portion located at an upper end of the frame portion and connecting the frame portion located on both sides of the main body; Front sensors provided on both sides of the front of the frame cover to detect obstacles located on the front of the main body; and rear sensors provided on both sides of the rear surface of the frame unit to detect obstacles located on the rear surface of the main body.

According to one embodiment, the frame cover portion may further include a sensor support portion on a side surface on which the front sensor is seated.

According to an embodiment, the front detection sensor and the rear detection sensor may detect according to the shape of a person and an object and generate different warning sounds depending on the case where a person is detected and the case where an object is detected.

According to an embodiment, the main body automatically stops driving and generates a warning sound without a separate operation of the driver when a human shape is detected by the front sensor and the rear sensor, and the shape of the object If this is detected, a warning sound is generated, but driving in the direction of movement is possible.

According to an embodiment, the sensor support unit is positioned so as to be in close contact with the frame cover portion, and is formed in the shape of a rectangular plate having a predetermined thickness, but has an opening groove formed in a direction from the upper center portion to the lower center portion. support plate; A second support plate formed in the shape of a rectangular plate having a predetermined thickness and formed in the shape of '', having an elliptical first screw groove formed on a side surface and an elliptical second screw groove formed on an upper surface thereof; And a third support plate formed in the shape of a rectangular plate having a predetermined thickness, having the same width as the upper surface of the second support plate, but having a length shorter than the length of the second support plate and located at the lower end of the upper surface of the second support plate. ; can be included.

According to one embodiment, the opening groove may connect a first nut and a first bolt so as to be fixed to the first screw groove positioned to overlap.

According to one embodiment, the first nut, the other end is formed with a larger diameter than the diameter of the opening groove and the first screw groove, one end is formed with a diameter capable of penetrating the opening groove and the first screw groove Threads may be formed.

According to one embodiment, the first bolt is formed in the shape of a circular strip having an empty space with a width insertable into the first nut, and an inner surface in contact with one end of the first nut is one end of the first nut. It may be formed in a shape corresponding to the screw thread formed in.

According to an embodiment, the first screw groove may be formed at the same position as the opening groove formed in the first support plate when the second support plate is located on a side surface of the first support plate, and the opening groove It may be formed in an elliptical shape having the same width as.

According to an embodiment, the third support plate may have an elliptical third screw groove having the same diameter and length as the second screw groove.

According to an embodiment, the third screw hole may be located at the same position as the second screw hole when the third support plate is located at the lower end of the upper surface of the second support plate.

According to an embodiment, the second screw groove may connect a second nut and a second bolt so as to be fixed with the third screw groove positioned to overlap a lower end.

According to an embodiment, the second nut has an upper end having a larger diameter than diameters of the second screw hole and the third screw hole, and a lower end capable of penetrating the second screw hole and the third screw hole. It is formed with a diameter and may be threaded.

According to one embodiment, the second bolt is formed in the shape of a circular band having an empty space with a width insertable into the second nut, and an inner surface in contact with one end of the second nut is one end of the second nut. It may be formed in a shape corresponding to the screw thread formed in.

According to one embodiment, the third support plate, a length limiting portion positioned so as to be perpendicular to one end surface may be located.

According to an embodiment, the length limiting part is formed of a circular plate having a larger diameter than the thickness of the third support plate and is positioned while protruding from the upper and lower ends of the third support plate, so that the third support plate is the second support plate. It is possible to limit the overlapping length of the lower part of the upper surface.

A forklift equipped with a mirror for eliminating blind spots according to an embodiment of the present invention includes a forklift; and an elevating member connected to the forklift.

In the forklift equipped with a mirror for eliminating blind spots according to an embodiment of the present invention, the elevating member is connected to the forklift, and has vertical columns located at both ends and horizontal columns connecting the vertical columns. Support pillars formed in the shape of a ladder; An article holder located at the lower end of the rear surface of the support pillar and formed flat so that an article to be moved is placed on the upper end; a moving unit provided at a lower end of the support column and rotationally driven so as to be movable together with the movement of the connected forklift; a front mirror unit positioned at the height of a driver's field of view seated on the forklift among the horizontal pillars provided in the support pillar unit, and displaying an obstacle located in front of the forklift truck and a moving state of the item holding unit; and a chain part positioned in the longitudinal direction of the vertical pillar of the support pillar part and rotationally driving the chain part to control the elevating and descending driving of the article holding part.

According to an embodiment, the front mirror unit may be provided to be rotatably driven according to the height of the driver's field of view.

According to one embodiment, the forklift includes a main body provided with a driver's seat and moving by manipulation of a driver seated in the driver's seat; Doedoe formed in the shape of '∩' formed so as to lead from the front to the rear of the main body, the frame portion provided on both sides of the upper end of the main body; a frame cover portion located at an upper end of the frame portion and connecting the frame portion located on both sides of the main body; Front sensors provided on both sides of the front of the frame cover to detect obstacles located on the front of the main body; and rear sensors provided on both sides of the rear surface of the frame unit to detect obstacles located on the rear surface of the main body.

According to one embodiment, the frame cover portion may further include a sensor support portion on a side surface on which the front sensor is seated.

According to an embodiment, the front detection sensor and the rear detection sensor may detect according to the shape of a person and an object and generate different warning sounds depending on the case where a person is detected and the case where an object is detected.

According to an embodiment, the main body automatically stops driving and generates a warning sound without a separate operation of the driver when a human shape is detected by the front sensor and the rear sensor, and the shape of the object If this is detected, a warning sound is generated, but driving in the direction of movement is possible.

According to an embodiment, the sensor support unit is positioned so as to be in close contact with the frame cover portion, and is formed in the shape of a rectangular plate having a predetermined thickness, but has an opening groove formed in a direction from the upper center portion to the lower center portion. support plate; A second support plate formed in the shape of a rectangular plate having a predetermined thickness and formed in the shape of '', having an elliptical first screw groove formed on a side surface and an elliptical second screw groove formed on an upper surface thereof; And a third support plate formed in the shape of a rectangular plate having a predetermined thickness, having the same width as the upper surface of the second support plate, but having a length shorter than the length of the second support plate and located at the lower end of the upper surface of the second support plate. ; can be included.

According to one embodiment, the opening groove may connect a first nut and a first bolt so as to be fixed to the first screw groove positioned to overlap.

According to one embodiment, the first nut, the other end is formed with a larger diameter than the diameter of the opening groove and the first screw groove, one end is formed with a diameter capable of penetrating the opening groove and the first screw groove Threads may be formed.

According to one embodiment, the first bolt is formed in the shape of a circular strip having an empty space with a width insertable into the first nut, and an inner surface in contact with one end of the first nut is one end of the first nut. It may be formed in a shape corresponding to the screw thread formed in.

According to an embodiment, the first screw groove may be formed at the same position as the opening groove formed in the first support plate when the second support plate is located on a side surface of the first support plate, and the opening groove It may be formed in an elliptical shape having the same width as.

According to an embodiment, the third support plate may have an elliptical third screw groove having the same diameter and length as the second screw groove.

According to an embodiment, the third screw hole may be located at the same position as the second screw hole when the third support plate is located at the lower end of the upper surface of the second support plate.

According to an embodiment, the second screw groove may connect a second nut and a second bolt so as to be fixed with the third screw groove positioned to overlap a lower end.

According to an embodiment, the second nut has an upper end having a larger diameter than diameters of the second screw hole and the third screw hole, and a lower end capable of penetrating the second screw hole and the third screw hole. It is formed with a diameter and may be threaded.

According to one embodiment, the second bolt is formed in the shape of a circular band having an empty space with a width insertable into the second nut, and an inner surface in contact with one end of the second nut is one end of the second nut. It may be formed in a shape corresponding to the screw thread formed in.

According to one embodiment, the third support plate, a length limiting portion positioned so as to be perpendicular to one end surface may be located.

According to an embodiment, the length limiting part is formed of a circular plate having a larger diameter than the thickness of the third support plate and is positioned while protruding from the upper and lower ends of the third support plate, so that the third support plate is the second support plate. It is possible to limit the overlapping length of the lower part of the upper surface.

According to one aspect of the present invention described above, the forklift equipped with the anti-collision sensor for the person proposed by the present invention is configured such that the front detection sensor and the rear detection sensor can be detected according to the shape of the person and the object, and the person Different warning sounds may be generated depending on the case of being detected and the case of being detected by an object.

In addition, the main body can automatically stop the movement and generate a warning sound without the driver's separate operation when a human shape is detected by the front sensor and the rear sensor, and when the shape of an object is detected, a warning sound is generated while moving can drive without stopping.

In addition, the sensor support for supporting the detection sensor provided in the forklift is made up of a plurality of support plates and is fixed to the frame cover, and can be easily damaged by external impact or prevent interference elements during operation of the front detection sensor.

In addition, the buffer member, which is a part of the sensor support unit, may be formed of two springs having different lengths and different diameters, so that the shock or vibration applied through the second nut can be contracted or released according to the size or position, respectively. have.

That is, the length and diameter of the second spring part are formed to have a longer length and a larger diameter than the first spring part, so that they can be contracted and driven to absorb small shocks or vibrations, and the first spring part formed to have a relatively short length and small diameter is more It can be contracted and driven to absorb large shocks or vibrations.

In addition, in order to absorb the shock or vibration generated from the lower end in the second spring unit, the second spring unit may be contracted and driven so that the first spring unit may not be driven, and the shock or vibration generated from the upper unit may be absorbed by the first spring unit. In order to do so, the first spring part may be contracted and driven, and the second spring part may not be driven.

The effects of the present invention are not limited to the effects mentioned above, and various effects may be included within a range apparent to those skilled in the art from the description below.

1 and 2 are diagrams showing the configuration of a forklift according to an embodiment of the present invention.
3 is a view showing the configuration of a forklift equipped with a blind spot eliminating mirror according to an embodiment of the present invention.
4 to 8 are diagrams showing the configuration of a sensor support, which is a part of a forklift equipped with a mirror for eliminating blind spots, according to another embodiment of the present invention.

후술하는 본 발명에 대한 상세한 설명은, 본 발명이 실시될 수 있는 특정 실시예를 예시로서 도시하는 첨부 도면을 참조한다. 이들 실시예는 당업자가 본 발명을 실시할 수 있기에 충분하도록 상세히 설명된다. 본 발명의 다양한 실시예는 서로 다르지만 상호 배타적일 필요는 없음이 이해되어야 한다. 예를 들어, 여기에 기재되어 있는 특정 형상, 구조 및 특성은 일 실시예와 관련하여 본 발명의 정신 및 범위를 벗어나지 않으면서 다른 실시예로 구현될 수 있다.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention which follows refers to the accompanying drawings which illustrate, by way of illustration, specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable one skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other but are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in another embodiment without departing from the spirit and scope of the invention in connection with one embodiment.

It is understood that when a component is referred to as being “connected” or “coupled” to another component, it may be directly connected or coupled to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is referred to as “directly connected” or “directly coupled” to another component, it should be understood that no other component exists in the middle.

Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

Below, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 and 2 are diagrams showing the configuration of a forklift according to an embodiment of the present invention.

1 and 2, a forklift 100 according to an embodiment of the present invention includes a main body 190, a frame part 170, a frame cover part 150, front sensors 110 and 110', and It may include a rear detection sensor (130, 130').

The main body 190 is provided with a driver's seat and can be moved by manipulation of a driver seated in the driver's seat.

The frame part 170 is formed in a '∩' shape and is formed to be connected from the front to the rear of the main body 190, and may be provided on both sides of the upper end of the main body.

The frame cover part 150 is located at the top of the frame part 170 and can connect the frame part 170 located on both sides of the main body 190 .

The front sensors 110 and 110' are provided on both sides of the front of the frame cover 150 to detect obstacles located on the front of the main body.

The rear sensors 130 and 130' are provided on both sides of the rear surface of the frame unit 170 to detect obstacles located on the rear surface of the main body 190.

Here, the front detection sensors (110, 110') and the rear detection sensors (130, 130') are configured to detect according to the shape of a person and an object, and a warning sound is generated depending on when a person is detected and when an object is detected. may occur differently.

On the other hand, the main body 190 automatically stops the movement without a separate operation of the driver when a human shape is detected by the front sensors 110 and 110' and the rear sensors 130 and 130', and a warning sound is generated at the same time. When the shape of an object is detected, a warning sound is generated, but the vehicle can drive without stopping the movement.

On the other hand, when a person is detected by the front detection sensors 110, 110' and the rear detection sensors 130, 130', it is possible to prevent sudden braking by gradually reducing the speed of the main body 190 for the safety of the driver, The front sensors 110 and 110' may be designed to move backward even if a person is detected, and the rear sensors 130 and 130', on the contrary, may be designed to move forward even if a person is detected. It can be.

3 is a view showing the configuration of a forklift equipped with a blind spot eliminating mirror according to an embodiment of the present invention.

Referring to FIG. 3 , a forklift 100 equipped with a mirror for eliminating blind spots according to an embodiment of the present invention may be connected to an elevating member 900 .

The elevating member 900 may include a support column 910 , an article holding unit 930 , a moving unit 950 , a front mirror unit 970 and a chain unit 990 .

The support pillar 910 is connected to the forklift 100 and may be formed in the shape of a ladder having vertical pillars located at both ends and horizontal pillars connecting the vertical pillars.

The article holder 930 is located at the bottom of the rear surface of the support column 910, but may be formed flat so that an article to be moved is placed at the top.

The moving part 950 is provided at the lower end of the support column part 910 and can be rotationally driven so as to move together with the movement of the connected forklift 100 .

The front mirror part 970 is located in accordance with the height of the driver's field of view seated on the forklift 100 among the horizontal pillars provided on the support pillar part 910, and holds the obstacle and the item located in front of the forklift 100 Movement of unit 930 may be shown.

The front mirror unit 970 may be provided to be rotatably driven according to the height of the driver's field of view.

The chain part 990 is positioned in the longitudinal direction of the vertical pillar of the support pillar part 910 and rotates to control the lifting and lowering driving of the article holding part 930 .

Here, the chain unit 990 can be rotated and driven by an operator seated on the connected forklift 100 .

Accordingly, the forklift equipped with the mirror for eliminating the blind spot suggested by the present invention can stop the driving of the chain unit 990 according to obstacles generated while the goods located on the goods holder 930 move up and down.

4 to 8 are diagrams showing the configuration of a sensor support unit, which is a part of a forklift equipped with a blind spot eliminating mirror according to another embodiment of the present invention.

4 and 5, the front sensors 110 and 110' according to another embodiment of the present invention may be fixed to the top of the sensor support 200 fixed to the side of the frame cover 150. .

More specifically, the sensor support unit 200 may include a first support plate 210 , a second support plate 230 and a third support plate 250 .

The first support plate 210 is positioned so as to be in close contact with the frame cover 150, and is formed in the shape of a rectangular plate 219 having a predetermined thickness, but an opening groove 211 is formed in the direction from the upper center portion to the lower center portion. may have been

Meanwhile, the first nut 270 and the first bolt 271 may be connected to the opening groove 211 so as to be fixed to a first screw groove 233 to be described below, which is positioned so as to overlap.

The other end of the first nut 270 is formed to have a larger diameter than the diameters of the opening groove 211 and the first screw groove 233 located so as to overlap each other, and is inserted into the opening groove 211 and the second screw groove 231. It can be prevented.

One end of the second nut 290 may be formed with a diameter capable of penetrating the opening groove 211 and the first screw groove 233, but may have a screw thread.

The first bolt 271 may be formed in the shape of a circular band having an empty space with a width that can be inserted into the first nut 270, and the inner surface abutting one end of the first nut 270 is the first nut 270. ) It may be formed in a shape corresponding to the screw thread formed at one end of.

The second support plate 230 is formed in the shape of a rectangular plate having a predetermined thickness, but may be formed in the shape of ' ' ', the side surface 235 is formed with an elliptical first screw groove 233, and the upper surface Also, an elliptical second screw groove 231 may be formed.

The first screw groove may be formed at the same position as the opening groove 211 formed in the first support plate 210 when the second support plate 230 is located on the side of the first support plate 210 .

In addition, the first screw groove 233 may be formed in an oval shape having the same width as the opening groove 211 .

A second nut 290 and a second bolt 291 may be connected to the second screw groove 231 so as to be fixed to a third screw groove 251 to be described below, which is positioned to overlap at the lower end.

The upper end of the second nut 290 is formed to have a larger diameter than the diameters of the second screw hole 231 and the third screw hole 251, and is inserted into the second screw hole 231 and the third screw hole 251. that can be prevented

In addition, the lower end of the second nut 290 may be formed with a diameter capable of penetrating the second screw groove 231 and the third screw groove 251, but may have a screw thread formed therein.

The second bolt 291 may be formed in the shape of a circular band having an empty space with a width that can be inserted into the second nut 290, and the inner surface abutting one end of the second nut 290 is the second nut 290. ) It may be formed in a shape corresponding to the screw thread formed at one end of.

The third support plate 250 is formed in the shape of a rectangular plate having a predetermined thickness, has the same width as the upper surface of the second support plate 230, but is formed with a length shorter than the length of the second support plate 230. It may be located at the bottom of the upper surface of (230).

The third support plate 250 may have an elliptical third screw hole 251 having the same diameter and length as the second screw hole 231 .

The third screw groove 251 may be located at the same position as the second screw groove 231 when the third support plate 250 is located at the bottom of the upper surface of the second support plate 230 .

On the other hand, the inner surfaces of the first bolt 271 and the second bolt 291 are formed according to the shape of the screw thread formed at one end of the first nut 270 and the lower end of the second nut 290, respectively. It may be, when the thread is not formed at one end of the first nut 270 and the lower end of the second nut 290 and is formed in a smooth pattern, the inner surface of the first bolt 271 and the second bolt 291 It can be formed in a plain pattern.

On the other hand, the third support plate 250 may have a length limiting portion 259 located perpendicular to one end surface.

The length limiting portion 259 is formed as a circular plate having a larger diameter than the thickness of the third support plate 250 and is positioned while protruding from the top and bottom of the third support plate 250 so that the third support plate 250 is the second support plate. It is possible to limit the overlapping length of the top and bottom of the (230).

Here, the length limiting portion 259 may be formed to protrude toward the top of the second supporting plate 230, and the length limiting portion 259 may be formed by the front sensors 110 and 110 located at the top of the second supporting plate 230. ') can be prevented from being shaken due to the movement of the forklift 100 and escaping to the outside of the sensor support 200.

Meanwhile, the sensor support 200 and the front sensors 110 and 110' may be attached and connected to each other through a separate attachment member, and the second nut 290 may be fixedly connected to the front sensors 110 and 110'. It may be configured so that

That is, the positioning of the front sensors 110 and 110' so as to be fixed to the top of the second support plate 230 of the sensor support 200 can be fixed according to each user's autonomy.

6 to 8, when the lower end of the second nut 290 according to another embodiment of the present invention is formed in a smooth pattern, the sensor support part vibrates from the movement of the forklift, and vibration is applied to the front detection sensor It may be formed as a buffer member to prevent losing.

More specifically, the buffer member 400 includes an upper end contact part 401, a frame part 403, an upper end fixing part 410, a first fitting fixing part 430, a first spring part 420, a central support part ( 450), a second fitting fixing part 470, a second spring part 440 and a bottom fixing part 490 may be included.

The upper end contact part 401 may be formed of an attachable material so as to be tightly fixed to the upper end of the second nut 290 .

Here, the attachable material may mean a material such as bond or double-sided tape, but is not limited thereto, and may include all materials that can be attached and fixed to the upper end of the second nut 290 regardless of its name.

The frame part 403 may be positioned and connected to the lower end of the upper end contact part 401 and may have a smaller diameter than the upper end of the second nut 290 .

The upper surface of the frame part 403 may be formed of an attachable material so as to be fixedly connected to the lower end of the upper contact part 401 .

Here, the attachable material provided on the upper surface of the frame part 403 may mean a material such as bond or double-sided tape, but is not limited thereto, and is attached to the top of the upper fixing part 410 or the central support part 450. Any material that can be attached and fixed can be included regardless of its name.

The upper fixing part 410 can penetrate through grooves (not shown) formed on both sides of the upper end of the frame part 403, and is located at the upper end of the frame part 403 while penetrating the both ends of the frame part 403. may protrude into

In addition, the upper fixing part 410 can be prevented from being biased in one direction by fixing the fitting nuts 415 to both ends protruding on both sides of the top of the frame part 403.

That is, the upper fixing part 410 can be prevented from being biased in one direction from the frame part 403 through which the fitting nuts 415 are provided at both ends.

The first fitting fixing part 430 is located inside the empty frame part 403, but is located at the lower end of the upper fixing part 410 and may be formed in the shape of a cylinder, and the upper and lower ends are each formed with different diameters. It can be.

The first fitting fixing portion may be formed with a length capable of being fitted between the top fixing portion 410 and the central support portion 450 .

On the other hand, since the upper side of the upper side of the upper end formed with a large diameter of the first fitting fixing part 430 is formed of a material attachable to the lower end of the upper fixing part 410, the upper surface can be attached and fixed to the upper fixing part.

The lower surface of the lower end formed of a small diameter of the first fitting fixing part 430 is formed of a material attachable to the upper end of the central support part 450, so that the lower surface can be attached and fixed to the upper end of the central support part 450. .

Here, the attachable material of the top and bottom surfaces of the first fitting fixing part 430 may mean a material such as a bond or double-sided tape, but is not limited thereto, and the top fixing part 410 or the central support part 450 ), any material that can be attached and fixed to the top can be included regardless of its name.

However, when the formed length of the first fixing part 430 is formed to a length that can be fixed by forcibly fitting between the lower end of the central support part 450 and the frame part 403 without the need for an attachable material, the first fitting fixing part Attachable materials may not be separately provided on the upper and lower surfaces of the 430 .

The first spring part 420 may be positioned so as to surround the outer surface of the lower end of the first fitting fixing part 430 and may be contracted or released to absorb shock or vibration generated from the outside.

That is, the first spring part 420 may be provided as a device capable of absorbing shock or vibration generated from the outside of the second nut 290, and absorbs the shock or vibration to detect the sensor support 200 and the front surface. By minimizing shock and vibration applied to the sensor 110, it is possible to minimize obstacles that prevent the front detection sensor 110 from detecting an obstacle located in front.

The central support part 450 is fixed to the lower end of the first fitting fixing part 430 and may be formed to have the same diameter as the inner diameter of the frame part 403 .

The central support part 450 can move up and down inside the frame part 403 through contraction and relaxation of the first spring part 420 and the second spring part 440 located at the upper and lower ends.

The second fitting fixing part 470 is located at the lower end of the central support part 450 and is formed in a cylindrical shape, and the upper and lower ends may be formed in different diameters.

In addition, the second fitting fixing part 470 may be formed with a length capable of being fitted between the central support part 450 and a groove (not shown) formed on the upper end of the lower fixing part.

That is, the second fitting fixing part 470 may pass through the lower end of the frame part 403 and be fixed to the lower fixing part 490 located at the lower end of the frame part 403 .

On the other hand, the second fitting fixing part 470 is formed of a material attachable to the inside of the groove (not shown) formed on the upper end of the lower fixing part 490 on the lower surface of the lower end formed with a large diameter, so that the lower surface is framed. It may be attached and fixed to the empty inner lower end of the portion 403 .

The second fitting fixing part 470 is formed of a material attachable to the lower end of the central support part 450 on the upper side of the upper side formed of a small diameter, so the upper surface can be attached and fixed to the lower end of the central support part 450. .

Here, the attachable material of the upper and lower surfaces of the second fitting fixing part 470 may mean a material such as a bond or double-sided tape, but is not limited thereto, and the upper fixing part 410 or the central support part 450 ), any material that can be attached and fixed to the top can be included regardless of its name.

However, when the formed length of the second fitting part 470 is forcibly fitted between the lower end of the central support part 450 and the frame part 403 without the need for an attachable material, the second fitting part is formed to a fixable length. Attachable materials may not be separately provided on the upper and lower surfaces of the 470 .

In the case of the second fixing part 470, it can be driven to rotate left and right when an impact from the outside is applied. Accordingly, the frame part 403 that is connected while being penetrated is also the second fitting fixing part 470 It can be driven to rotate left and right along (see FIG. 8).

The second spring part 440 may be positioned so as to surround the outer surface of the second fitting fixing part 470 and may be contracted or released to absorb shock or vibration generated from the outside.

That is, the second spring part 440 may be provided as a device capable of absorbing shock or vibration generated from the outside of the second nut 290, and absorbs the shock or vibration to detect the sensor support 200 and the front surface. By minimizing shock and vibration applied to the sensor 110, it is possible to minimize obstacles that prevent the front detection sensor 110 from detecting an obstacle located in front.

On the other hand, the first spring part 420 and the second spring part 440 may be formed of springs having different lengths and different diameters, respectively, so that the shock or vibration applied through the second nut 290 is reduced in size or position. It can be driven by contraction or relaxation, respectively.

For example, the length and diameter of the second spring part 440 are formed to be longer and larger than the first spring part 420, so that it can be contracted and driven to absorb small shocks or vibrations, and a relatively short length and diameter. The first spring part 420 formed with a small diameter can be contracted and driven in order to absorb a larger shock or vibration.

As another example, in order for the second spring part 440 to absorb shock or vibration generated from the lower end, the second spring part 440 contracts and drives so that the first spring part 420 may not be driven, and the second spring part 440 may not be driven. In order to absorb the generated shock or vibration in the first spring part 420, the first spring part 420 may be contracted and driven so that the second spring part 440 may not be driven.

The lower fixing part 490 is formed to be detachable from the frame part 403 and may be formed in a shape surrounding the lower outer surface of the frame part 403 .

In addition, the lower fixing part 490 is formed with a larger diameter than the diameter of the frame part 403 to prevent the second nut 290 from being separated from the overlapping second screw groove 231 and third screw groove 251. It can be prevented.

On the other hand, protrusions 495 formed to protrude outward may be further formed on both sides of the lower fixing part 490, which is strongly acted upon by impact from the outside many times, thereby forming the second screw groove 231 and the second screw groove 231. It is formed to prevent the lower fixing part 490 from being separated from the 3 screw groove 251, and whether to install it can be selected according to the user's intention.

The second nut 290 to which the above-mentioned buffer member 400 is applied is the second support plate 230 and the third support plate 250 without using the second bolt 291 by the protruding lower fixing part 490. can be fixed.

The above-described embodiments are for illustrative purposes, and those skilled in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical spirit or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims to be described later rather than the detailed description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof.

100: forklift

Claims (3)

A forklift equipped with an anti-collision sensor for a person, including a main body having a driver's seat and moving by manipulation of a driver seated in the driver's seat,
The forklift,
Doedoe formed in the shape of '∩' formed so as to lead from the front to the rear of the main body, the frame portion provided on both sides of the upper end of the main body;
a frame cover portion located at an upper end of the frame portion and connecting the frame portion located on both sides of the main body;
Front sensors provided on both sides of the front of the frame cover to detect obstacles located on the front of the main body; and
A rear detection sensor provided on both sides of the rear surface of the frame unit to detect an obstacle located on the rear surface of the main body; further comprising,
The frame cover,
A sensor support on which the front sensor is seated is further provided on a side surface,
The front detection sensor and the rear detection sensor,
It detects according to the shape of a person and an object, and generates a different warning sound depending on when a person is detected and when an object is detected.
the body,
When the shape of a person is detected by the front sensor and the rear sensor, the movement is automatically stopped without a separate operation of the driver and a warning sound is generated, and when the shape of an object is detected, a warning sound is generated but the direction A forklift truck equipped with an anti-collision sensor for people traveling on the road. delete According to claim 1,
The sensor support part,
a first support plate positioned in close contact with the frame cover, formed in the shape of a rectangular plate having a predetermined thickness, and having an opening groove formed in a direction from an upper center portion to a lower center portion;
A second support plate formed in the shape of a rectangular plate having a predetermined thickness and formed in the shape of '', having an elliptical first screw groove formed on a side surface and an elliptical second screw groove formed on an upper surface thereof; and
A third support plate formed in the shape of a rectangular plate having a predetermined thickness, having the same width as the upper surface of the second support plate, but having a length shorter than the length of the second support plate and located at the lower end of the upper surface of the second support plate; including,
The opening groove,
Connecting a first nut and a first bolt so as to be fixed with the first screw groove positioned to overlap,
The first nut,
The other end is formed with a larger diameter than the diameter of the opening groove and the first screw groove,
One end is formed with a diameter capable of penetrating the opening groove and the first screw groove, and a screw thread is formed,
The first bolt,
It is formed in the shape of a circular strip having an empty space of a width that can be inserted into the first nut, and an inner surface in contact with one end of the first nut is formed in a shape corresponding to a screw thread formed at one end of the first nut,
The first screw groove,
When the second support plate is located on the side of the first support plate, it is formed at the same position as the opening groove formed in the first support plate,
It is formed in an oval shape having the same width as the opening groove,
The third support plate,
An elliptical third screw groove having the same diameter and length as the second screw groove is formed,
The third screw groove,
The third support plate is located at the lower end of the upper surface of the second support plate and is located at the same position as the second screw groove,
The second screw groove,
Connecting a second nut and a second bolt so as to be fixed with the third screw groove located to overlap at the bottom,
The second nut,
The upper end is formed with a larger diameter than the diameters of the second screw groove and the third screw groove,
The lower end is formed with a diameter capable of penetrating the second screw groove and the third screw groove, and a screw thread is formed,
The second bolt,
It is formed in the shape of a circular band having an empty space of a width that can be inserted into the second nut, and an inner surface in contact with one end of the second nut is formed in a shape corresponding to a screw thread formed at one end of the second nut,
The third support plate,
The length limiting part located perpendicular to one end is located,
The length limiting unit,
It is formed of a circular plate having a larger diameter than the thickness of the third support plate and is positioned while protruding from the top and bottom of the third support plate to limit the length of the third support plate overlapping the lower end of the upper surface of the second support plate. A forklift equipped with an anti-collision sensor for

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