KR200477549Y1 - Safety device for shopping-cart - Google Patents

Abstract

The present invention is mainly applied to a shopping cart used in a shopping mall such as a large-sized shopping mall or the like, and a shock absorber is added to the shopping cart to reduce or alleviate an impact when the shopping cart collides with an obstacle ahead, The present invention relates to a safeguard apparatus for a shopping cart capable of preventing an accident such as a collision.
The present invention relates to a shopping cart in which a basket 20 and a handle 30 are mounted on an upper portion of a carrier 10 and a front and rear casters 50 and 60 are mounted on a lower portion of the carrier 10, One side of the operating link 2 is movably engaged with the pin shaft 21 at the lower end of the front supporter 1 of the front supporter 1 and the other side is engaged with the pin shaft 22 on the frame 3 on which the front casters 50 are mounted, And the frame 3 on which the front supporter 1 of the carrier 10 and the front casters 40 are mounted is resiliently connected to the spring 4 to constitute a safety device of the shopping cart.

Description

{SAFETY DEVICE FOR SHOPPING-CART}

The present invention relates to a safeguard apparatus for a shopping cart, and more particularly, to a shopping cart used in a shopping mall such as a large-sized shopping mall, for example, by adding a shock absorber to mitigate or reduce an impact, And a safeguard apparatus for a shopping cart in which a shopping cart is prevented from being accidentally turned over or overturned.

In general, shopping carts are used for purposes such as shopping at shopping malls such as large-sized marts, department stores, and the like.

In addition, the basket is connected to the carrier on the lower part of the carrier, and the caster for moving and the handle for turning the direction are provided on the lower part of the carrier so that the basket can be loaded and loaded and can be easily moved to a desired place.

Such a shopping cart has many accidents such as colliding with other shoppers or objects in the vicinity when moving, and various safety devices for various accidents are being researched and developed. Hereinafter, a conventional technology for safeguarding a shopping cart will be summarized.

References 1; A safety caster of a shopping cart is disclosed in which a protective cover is attached to a bracket of a caster mounted on a lower portion of a shopping cart so as to alleviate a situation where a person hits a surrounding object or a person in a shopping cart operation. There is disclosed a wheel for a shopping cart in which a braking member and an auxiliary roller portion are provided on a wheel of a shopping cart so that the moving work can safely enter the elevating portion.

In References 3 to 5, There is disclosed a brake device for a shopping cart in which a brake lever is provided on a handle portion of a shopping cart to apply a braking force to the wheel with a brake lever so as to prevent a running object of the shopping cart from colliding with a surrounding object.

See also Reference 6; A collision avoidance shopping cart is disclosed in which a shopping cart is automatically decelerated when a person or an object is present in front of the shopping cart so that the shopping cart does not collide with a person or an object in front, and references 7 and 8 disclose; A seat belt for a shopping cart is disclosed in which a seat belt for infant seats of a shopping cart is provided to protect the safety of a user in a infant seat.

Various safeguards have been developed to prevent various accidents that may occur during the use of the shopping cart. However, in order to prevent a frontal collision of the shopping cart, a buffering function or a shopping cart may be turned over / ) Has not yet been attempted to develop a safety device capable of preventing accidents. This will be discussed in detail.

FIG. 1 is a schematic view of a conventional shopping cart, and FIG. 2 is a view for explaining a problem of a conventional shopping cart being turned over / over.

The shopping cart comprises a basket (20) coupled to the top of the carrier (10), and a handle (30) for changing direction is formed. To the lower portion of the carrier 10, front and rear casters 40 and 50 are mounted respectively forward and backward for movement.

The shopping cart having the above-described configuration has no shock absorber to mitigate impact when it collides with an object or the like at the front, so that the entire shopping cart receives the impact energy with the forward object as it is, do.

As a result, The front casters 40 on the lower portion of the basket 20 are positioned in the vicinity of the front casters 40 on the move so that the front casters 40 are located in front of the front casters 40, Frequent collisions with objects or objects.

That is, when the user moves the shopping cart, the position of the basket 20 coupled to the upper part of the carrier 10 can be sufficiently recognized by the user. Therefore, when the front of the basket 20 collides with people, objects, Very rare.

However, since the front casters 40 mounted on the lower part of the basket 20 are covered by the basket 20 and the carrier 10 and move in a state where they are invisible and invisible, when the front casters 40 collide with objects on the floor or protrusions So that a shock absorber capable of mitigating the impact applied to the front casters is required.

Especially, as shown in FIG. 2, when the forward caster 40 of the shopping cart collides with the protruding object or is caught by moving downwardly on a downwardly inclined moving work or the like, the center of gravity of the entire shopping cart is concentrated forward, The inertia of the traveling energy that moves continuously (downward) in the proceeding direction causes the balance of the shopping cart to sharply shift forward, causing a very dangerous accident that the shopping cart is turned over / over.

Therefore, even if the front casters 40 of the shopping cart collide with the object or the front casters 40 collide with or get caught by the objects in the downwardly inclined traveling path or the like, the shocks are absorbed and canceled so that the impact And it is required to develop a safety device capable of effectively preventing the shopping cart from being tumbled or rolled over.

(Reference 1) Korean Publication No. 10-2013-0083681, July 23, 2013. (Reference 2) Korean Registered Patent No. 10-1434937, Aug. 29, 2014. (Reference 3) Korean Utility Model Registration No. 20-0225189, May 15, 2001. (Reference 4) Utility Model Registration No. 20-0273304 of Korea Registered, Feb. 22, 2002. (Reference 5) Korean Utility Model Registration No. 20-0361993, September 13, 2004. (Reference 6) Korean Published Patent Application No. 10-2012-0045692, 2012.05.09. (Reference 7) Korean Utility Model Registration No. 20-0399992, Nov. 2, 2005. (Reference 8) Korean Utility Model Registration No. 20-0395537, September 15, 2005.

The present invention aims to provide a safeguard device for absorbing shock energy applied to a user by absorbing and mitigating a shock when a front casters of a shopping cart collide with an object, thereby safely using the shopping cart.

In addition, in the present invention, when the front casters are collided with or caught by an object in the process of moving the shopping cart on a downwardly inclined traveling path, the impact is absorbed and relaxed and attenuated, and the center of gravity of the shopping cart is moved back Direction of the vehicle so that the vehicle can be prevented from colliding with a forward object in a downwardly inclined moving path or the like and being prevented from being turned over or overturned.

The present invention for solving the above problems is as follows.

According to the invention described in claim 1, A shopping cart having a basket and a handle mounted on an upper portion of a carrier and a front / rear casters mounted on a lower portion of the carrier, wherein the front supporter and the front supporter are coupled to the front supporter of the carrier, The frame of the casters is characterized by being connected by a spring.

According to the invention described in claim 2, 2. The apparatus as claimed in claim 1, wherein the pin shaft of the actuating link connected to the front supporter of the carrier is oriented rearward and the other pin shaft connected to the frame of the front carrier is positioned forward, .

According to the invention described in claim 3, 3. The automatic transmission according to claim 1 or 2, characterized in that the rear pin shaft of the operating link is located at a higher position with a constant height difference from the front pin shaft.

According to the invention described in claim 4, 3. The apparatus of claim 1 or 2, further comprising: And a stopper is provided to prevent the rear pin shaft from moving beyond the front pin shaft in the course of the operation link being deployed about the pin shaft.

According to the invention described in claim 5, The rear caster of claim 1, wherein the rear caster is connected to a rear supporter of the carrier by a pin shaft.

The present invention can provide a safe shopping cart that absorbs and mitigates shocks when a front casters collide with an object by adding a safety device to the shopping cart.

In addition, in the present invention, when a forward caster collides with an object or is caught by a moving walk downwardly inclined in a moving walk, the cushion absorbs and absorbs the impact and moves the center of gravity backward, Thereby preventing the overturning of the shopping cart, thereby providing advantages such that the shopping cart can be used more safely and conveniently.

1 is a block diagram of a conventional shopping cart.
FIG. 2 is an explanatory view illustrating a safety accident occurrence process of a conventional shopping cart; FIG.
3 is a block diagram of a shopping cart to which the present invention is applied.
Fig. 4 is an excerpt of the main part showing the constitution of the present invention. Fig.
Fig. 5 is an excerpt of a work that shows the structure of the present invention.
Fig. 6 is a side view of Fig. 5; Fig.
Fig. 7 is an exploded perspective view of the present invention; Fig.
Fig. 8 is an operational state diagram of the present invention. Fig.
Fig. 9 is an explanatory view for explaining an operating state of the present invention; Fig.
FIG. 10 is an enlarged view of the main part of FIG. 9; FIG.

The present invention relates to a shopping cart in which a handlebar and a basket are mounted on an upper portion of a carrier and a front and rear casters are mounted on a lower portion of the carrier for attaching a safety device to a shopping cart, The shopping cart can be prevented from overturning due to the buffering action of absorbing and attenuating the shopping cart.

The front casters include: The other end of the actuating link is connected to the lower end of the supporter at the lower end of the carrier by a pin shaft so that the impact energy generated in the front casters is absorbed and cushioned by a link provided on the frame on which the front casters are mounted. .

Further, the frame of the supporter fixed to the carrier and the frame of the front casters are connected by a spring so that the frame of the supporter and the frame of the front casters are elastically interlocked to elastically return the operating link to the position after the shock absorbing operation of the operating link , So that the operating link can be flexibly controlled and supported.

And a rear caster; A frame having a rear caster mounted thereon and a supporter fixed to the rear of the carrier are connected by a pin shaft so that the rear casters are angularly moved around the pin shaft when the front casters are cushioned,

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 3 is a configuration diagram of a shopping cart to which the present invention is applied, Fig. 4 is a drawing of a main part showing the constitution of the present invention, Fig. 5 is a drawing of a work part showing a configuration of the present invention, Fig. 7 is an exploded perspective view of the present invention.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not to be construed as limiting the scope of the inventive concept, It will be apparent to those skilled in the art that variations and modifications are possible.

The same reference numerals are used for the same components as those of the prior art already mentioned in the background art (Figs. 1 and 2).

In a shopping cart in which a basket 20 is mounted on an upper portion of a carrier 10 and a front and rear casters 50 and 60 are mounted on a lower portion of the carrier 10, It is characterized in that the shopping cart can be prevented from turning / overturning due to buffering action that absorbs and attenuates impact energy when caught.

The front caster 40 of the carrier 10 of the shopping cart is capable of absorbing and mitigating the impact energy generated when the front caster 40 collides with or hits a forward object. And the other side of the operating link 2 is movably engaged with the pin shaft 22 on the frame 3 on which the front caster 50 is mounted do.

The operating link 2 has the pin shaft 21 connected to the front supporter 1 of the carrier 10 facing rearward and the other pin shaft 22 connected to the frame 3 of the front carrier 50 forward And the operating link 2 is formed in parallel with the frame 3 on which the front casters 40 are mounted as shown in FIG. And is formed at a low position.

That is, the pin shaft 21 on the rear side of the operating link 2 is positioned higher than the front pin shaft 22 by a predetermined height A, so that the rear pin shaft 21 of the operating link 2 10 to the front supporter 1.

To this end, a support protrusion 31 capable of supporting the rear of the operating link 2 at a high position may be formed in the rear of the frame 3.

The front supporter 1 of the carrier 10 and the frame 3 on which the front casters 40 are mounted are connected to the springs 4 in a manner that the rear of the operating link 2 is connected to the pin shafts 21.

That is to say, the frame 1 of the front supporter 1 of the carrier 50 and the frame 1 of the front casters 40 connect the spring 4 to the rear so that the spring 4 elastically And extend and retract. This will be described later in more detail through the specific operation of the operation link 2 and the like.

The rear supporter 5 of the carrier 10 connects and connects the rear casters 50 with the pin shafts 51.

It is a matter of course that the front and rear casters 40 and 50 coupled to the front and rear supporters 1 and 5 of the carrier 10 should be installed at the same height.

In the present invention configured as described above, when the front casters 40 collide with each other during movement of the shopping cart, the impact energy is absorbed and relaxed to the operating link 2 and the spring 4, so that the impact energy does not reach the entire shopping cart. Can safely use the shopping cart. Hereinafter, this will be discussed.

As shown in FIG. 9, when the forward caster 40 is collided with or caught by an object while moving downwardly inclined moving work or the like, the center of gravity of the shopping cart is moved backward along with the impact mitigation, thereby preventing the shopping cart from turning over .

When the front casters 40 hit or collide with the objects during the movement of the shopping cart, the impact energy is directly transmitted to the front casters 40. Particularly, in a downward inclined traveling path such as a moving work, a greater impact is applied to the front casters 40 due to the weight of the shopping cart and the downward acceleration.

When the front casters 40 are impacted or caught by the front casters 40 as described above, stopping energy is applied to the front casters 40 with a strong impact, and the basket 20 continues to move forward (forward) due to inertia, .

In particular, in the downward inclined traveling path, when a lot of objects are loaded in front of the basket 20 and a load is concentrated, a stronger moving energy acts forward of the basket 20.

Thus, the shopping cart, which is centered by the stop energy of the front casters 40 that have collided with or caught on the object, and the strong moving energy of the basket 20 which is about to continuously move in the traveling direction, The falling / overturning accident occurs.

When the front casters 40 are struck or caught by the front casters 40 and the stopping energy is applied to the front casters 40, the operation link 2 and the front pin casings 40, which are connected to the frame 3 of the front casters 40, The forward pin shaft 21 is moved in the moving direction (forward) about the fixed front pin shaft 22 so that the operating link 2 is deployed.

That is, the operating link 2 is connected to the front supporter 1 by the rear pin shaft 21 about the front pin shaft 22 fixed to the frame 3 and is rotated and developed.

At this time, when all of the operating links 2 fixed to the frame 3 are expanded by the front pin shaft 22, the rear pin shaft 21 is positioned rearward of the front pin shaft 22 So that it can be positioned behind the angle B). That is, the rear pin shaft 21 can not move beyond the front pin shaft 22 in the process of the operation link 2 being deployed about the front pin shaft 22.

To this end, a stopper 32 is provided in front of the operating link 2 so as to prevent the front side of the operating link 2 from being bent over a certain angle so that the rear pin shaft 21 can not move beyond the front pin shaft 22 .

[This is because when the rear pin shaft 21 moves forward beyond the front pin shaft 22 in the course of the impact link 2 being deployed about the front pin shaft 22, the center of gravity of the basket 20 becomes the forward pin shaft 22 so that the operating link 2 and the spring 4 can not perform the buffering function properly.

The lifting action of the basket 20 in front of the basket 20 attenuates the kinetic energy that the basket 20 continuously moves in the moving direction due to the inertia. At the same time, the supporter 1 and the front casters 40 The spring 4 connecting the basket 20 is stretched and the movement energy of the basket 20 is elastically pulled to give the stop energy.

At the same time, the rear supporter 5 of the basket 20, to which the rear casters 50 are connected by the pin shafts 51, instantaneously hears the movement energy and the upward energy when the front basket 20 is raised by impact The center of gravity moves downward to return to the home position, and the rear supporter 5 is shifted to a lower position around the pin shaft 51. [

Therefore, the basket 20 absorbs and decelerates the movement energy converged forward by the impact energy of the front side by the operating link 2 and the spring 4, and at the same time, the position of the basket 20 20 are rearwardly moved back to the center of gravity of the front casters 40 to cushion the impact energy applied to the front casters 40, thereby preventing various kinds of accidents such as turning / overturning of the shopping carts.

When the impact energy applied to the front casters 40 is extinguished by the operating link 2 and the spring 4 due to the buffering action as described above, the operating link 2 returns to the home position with the restoring force of the spring 4 You will be able to use your shopping cart safely back, normally.

In order to specifically explain the implementation of the present invention, the reference numerals used in the accompanying drawings will be described below.
10: Carrier 20: Basket
30: Handle 40: Front caster
50: rear casters
1: Front supporter 2: Operation link
21 and 22: pin shaft 3: frame
4: spring
5: rear supporter 51: pin shaft

Claims (5)

In a shopping cart in which a basket 20 and a handle 30 are mounted on an upper portion of a carrier 10 and a front and rear casters 50 and 60 are mounted on a lower portion of the carrier 10,
One side of the operating link 2 is angularly movably engaged with the pin shaft 21 at the lower end of the front supporter 1 of the carrier 10 and the other side is fixed to the frame 3 on which the front casters 50 are mounted, 22, respectively,
Characterized in that the frame (3) on which the front supporter (1) and the front casters (40) of the carrier (10) are mounted is resiliently connected to the spring (4). The method according to claim 1,
The pin shaft 21 of the operating link 2 connected to the front supporter 1 of the carrier 10 faces rearward,
Characterized in that the other one side pin shaft 22 connected to the frame 3 of the front carrier 50 is located in front and the operating link 2 is formed in parallel with the frame 3 of the front caser 40 Safety devices in shopping carts. 3. The method according to claim 1 or 2,
Characterized in that the rear pin shaft (21) of the operating link (2) is located at a higher position with a difference in height (A) from the front pin shaft (22). 3. The method according to claim 1 or 2,
In front of the operating link (2); And a stopper (32) for preventing the rear pin shaft (21) from moving beyond the front pin shaft (22) in the process of the operation link (2) being deployed about the pin shaft (22) . The method according to claim 1,
Wherein the rear caster (50) is connected to the rear supporter (5) of the carrier (10) by a pin shaft (51).

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