KR20160081532A - Position changable device for loading member of loading instrument and electric carrier with thereof - Google Patents

Abstract

The present invention relates to a position changing device for a loading member of a loading instrument and an electric carrier having the same. The electric carrier comprises: a position changing device which has a rotating unit installed to rotate a loading member through a shaft, and a height adjusting unit for adjusting the height of the position changeable device; a loading instrument in which the position changing device is installed; and a power device which is installed to move the loading instrument, wherein the loading member is a basket for storing goods or a seat for a person. Therefore, the present invention adjusts the height and angle of the loading member when necessary.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a position variable device for a loading member for a loading device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power transmission carrier, and more particularly, to a position variable device for a load member for a loader, which is capable of being moved by a power unit with respect to a main shaft.

Generally, a carrier is a mechanism for carrying and moving articles, and in a broad sense may include a shopping cart, a baby stroller, or the like. Here, the cart is provided with a basket capable of holding purchased items, and the stroller is provided with a seat for seating the baby. Here, an example of a conventional baby carriage is disclosed in Korean Patent Laid-Open No. 10-2012-0030621 (the invention is called a baby carriage). As shown in FIGS. 1A and 1B, a body 10 having front and rear wheels, a seat 11 mounted on an upper portion of the body 10, And a handle (12). A rotating member 15 that rotates in a clockwise or counterclockwise direction on the side surface is provided at a joint portion between the body 10 and the front wheel 13 or the rear wheel 14 and a joint portion between the body 10 and the handle 12. [ And a fixing member 17 that rotates through a spring 16 and a knob member 18 through an axis. Therefore, when the handle member 18 is pulled, the fastening member 17 and the rotary member 15 are disengaged from each other when the fastening member 17 is rotated while the elastic force of the spring 16 is overcome. In this state, The fixing member 17 rotates in the original direction by the elastic force of the spring 16 and the fixing member 17 and the rotary member 15 are fastened again when the knob member 18 is released. Here, the front wheel 13 or the rear wheel 14 rotates forward / rearward relative to the body 10 by rotating the rotary member 15 in a state where the fixing member 17 and the rotary member 15 are disengaged And the handle 12 can be rotated forward / backward.

As shown in FIG. 1C, the body 10 and the seat mounting portion of the stroller 20 are fixed to the fixing groove 20 (see FIG. 1C), as disclosed in Korean Patent Application No. 10-2012-0030626 filed by the same applicant A rotary shaft 21 rotating in a clockwise or counterclockwise direction in plan view and a fixing member 17 provided through a spring 16 and a pull member 18 so as to be engaged with the fixing groove 20. Therefore, when pulling the knob member 18, the elastic force of the spring 16 is overcome so that the fixing member 17 is rotated and the engagement with the fixing groove 20 is released. After the rotation shaft 21 is rotated, 18 is released, the fixing member 17 rotates to its original position due to the elastic force of the spring 16, and the fixing member 17 and the rotary shaft 21 are fastened again. Through such an operation, the seat 20 can be rotated clockwise or counterclockwise in a plan view with respect to the body 10.

However, since the coupling force between the rotary member 15 and the fixing member 17 of Fig. 1B, the rotary shaft 21 of Fig. 1C and the fixing member 17 depends entirely on the elastic force of the spring 16, The rear wheel 14, the handle 12 and the seat 11 can be rendered inoperative if the elasticity of the front wheel 13, the rear wheel 14,

Korean Patent Publication No. 10-2012-0030621 (published on March 29, 2012) Korean Patent Publication No. 10-2012-0030626 (published on March 29, 2012) Practical new model of Korea public announcement 2989-0005134 (announcement of August 2, 1989)

SUMMARY OF THE INVENTION An object of the present invention, which is devised to solve the above-mentioned problems, is to provide an apparatus and a method for mounting a power unit on a main shaft of a loading mechanism, An object of the present invention is to provide a position variable device for a stacking member for a stacking device which is capable of adjusting the height and angle of a stacking member and allowing a user to ride the stacking device on a power unit.

In order to accomplish the above object, the present invention provides a position variable device for a loading member for a stacking apparatus, comprising: a loading mechanism that is provided with a loading member that is a basket for storing articles or a seat on which a person is placed; A rotating body including a second rotating body mounted for axial rotation with respect to the main shaft, a coupling groove formed in the main shaft, an engaging member incorporated in the second rotating body to be engaged or disengaged from the engaging groove, A first friction body mounted to rotate relative to the shaft, a second friction member mounted to the main shaft in a height direction, a first friction member which is in contact with the inner surface of the rotating first rotating body and is engaged with the second friction member while pushed or returned And height adjusting means provided with a member.

Here, the second rotating body is provided with an extending engagement portion extended to be engaged with the first rotating body.

Further, the engaging member is characterized by comprising a first frame and a second frame mounted to rotate with respect to each other, and a first elastic body mounted to rotate the first frame and the second frame in place.

In addition, the rotating means may further include a second actuating member installed to open the first frame and the second frame while moving, and the front end side portions of the first frame and the second frame may be rotated by the second actuating member, Or is disengaged or fastened to the coupling groove while being disturbed by the first elastic body.

In this case, the second actuating member is disposed between the first frame and the second frame on the second rotating body, and includes a body that reciprocates, and the first frame and the second frame are slid while the body moves, do.

The second actuating member includes a second elastic body provided on a part of the body for returning the body to its original position, an inclined part which is machined downward at a portion where the first frame and the second frame come into contact with each other at the body, And at least one of the guide bars into which the second elastic body is fitted.

The second rotating body further includes a plurality of supports arranged in a granular state with a predetermined interval therebetween. The axially coupled portions of the first frame and the second frame are located between the supports, .

The coupling grooves are paired to receive and fasten the tip end portions of the first frame and the second frame, respectively, and a plurality of the coupling grooves are machined around the circumferential surface of the main shaft.

On the other hand, the height adjusting means is provided between the inner surface of the first rotating body and the outer surface of the main shaft, and has a space smaller than the thickness of the first friction member and a space between the inner surface of the first rotating body and the outer surface of the main shaft And a coupling protrusion provided on the inner surface of the first rotating body so as to have an interval larger than the thickness of the first friction member, or a coupling protrusion protruding toward the center with an inclined surface on the inner surface of the first rotating body, And the second friction member is engaged with or disengaged from the second friction member.

The height adjusting means includes a plurality of engaging grooves formed on the circumferential surface of the main shaft, an engaging member provided to rotate or move the shaft so as to engage with the engaging groove, Wherein at least one of an elastic body provided so as to return the first operating member to the original position and an elastic body provided to return the retaining member to the original position is provided and the retaining groove is provided with a first friction member And the second friction member is engaged with the first engaging member at a position where the second friction member is engaged or disengaged.

In the electric carrier according to the present invention, it is preferable that the electric carrier includes: a loading mechanism having the above-described position variable device; a power unit for moving the loading mechanism; a wheel unit for moving by the power unit; And a power unit having a body and a connecting portion connecting the main body and the loading mechanism.

Here, the power unit includes a power source installed to drive the wheel, a battery installed to apply power to the power source, and a power switch provided to apply or short-circuit the power of the battery.

The power unit includes an accelerator provided to increase or decrease rolling motion of the front wheel or a rear wheel of a wheel mounted on a lower portion of the main body and driven by a power source, a brake provided to stop the rolling motion of the front wheel or the rear wheel, And a controller installed to receive the signal of the power unit and control the rolling motion of the front wheel or the rear wheel.

The connection portion includes a connection frame connecting the main body and a part of the loading mechanism, and a fixing pin that is detachably or rotatably coupled to the main body or the loading mechanism.

As described above, according to the present invention, there is an effect that the stacking member including the seat for the baby carriage or the basket for the cart is attached and detached, and is raised / lowered and rotated by the height adjusting means and the rotating means.

Further, the first body can be simply rotated by the height adjusting means so that the first friction member and the second friction member can be fastened or unfastened, and strong fastening can be performed with a simple operation.

In addition, there is an effect that the fastening or disengagement state of the first friction member and the second friction member can be firmly maintained by the combined operation of the first operating member and the engaging member and the engaging groove.

The second rotating body can be engaged or disengaged with respect to the main shaft by simple operation by opening or breaking the engaging member by the movement of the second operating member in the rotating means, And can be fixed.

In addition, since the loading mechanism can be moved to the power unit, the convenience of the user is maximized.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be interpreted.
Fig. 1A is a perspective view schematically showing a conventional baby carriage.
Figs. 1B and 1C are views showing the operating structure of the body shown in Fig. 1A and the coupling portion of the wheel or the handle or the seat.
2 is a perspective view schematically showing a loading mechanism equipped with a position variable device of a loading member according to a preferred embodiment of the present invention.
3 is an enlarged perspective view of the position variable device shown in Fig.
Fig. 4 is an exploded perspective view of the rotation means and the height adjusting means shown in Fig. 3; Fig.
5A and 5B are an external view and an internal flat cross-sectional view in which the height adjusting means of FIG. 3 is fixed to the main shaft.
6A and 6B are an external view and an internal flat cross-sectional view showing a state in which the height adjusting means and the main shaft of Fig. 3 are disengaged from each other.
FIGS. 7A and 7B are an external view and an internal flat sectional view, respectively, in which the rotating means of FIG. 3 is fixed to the main shaft.
Fig. 7C is a perspective view showing the second actuating member shown in Fig. 7B. Fig.
8A and 8B are an external view and an internal flat cross-sectional view, respectively, showing a state in which the rotation means and the main shaft of Fig. 3 are disengaged.
9A and 9B are an external view and an internal flat cross-sectional view showing a state in which the rotating means of FIG. 3 is rotated along the main shaft.
10 is a perspective view schematically showing a power carrier according to a preferred embodiment of the present invention.
11 is an exploded perspective view of the power unit shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

<Position variable device>

2 is a perspective view schematically showing a loading mechanism equipped with a position variable device of a loading member according to a preferred embodiment of the present invention. 3 is an enlarged perspective view of the position variable device shown in Fig. Fig. 4 is an exploded perspective view of the rotation means and the height adjusting means shown in Fig. 3; Fig. 5A and 5B are an external view and an internal flat cross-sectional view in which the height adjusting means of FIG. 3 is fixed to the main shaft. 6A and 6B are an external view and an internal flat cross-sectional view showing a state in which the height adjusting means and the main shaft of Fig. 3 are disengaged from each other. FIGS. 7A and 7B are an external view and an internal flat sectional view, respectively, in which the rotating means of FIG. 3 is fixed to the main shaft. Fig. 7C is a perspective view showing the second actuating member shown in Fig. 7B. Fig. 8A and 8B are an external view and an internal flat cross-sectional view, respectively, showing a state in which the rotation means and the main shaft of Fig. 3 are disengaged. 9A and 9B are an external view and an internal flat cross-sectional view showing a state in which the rotating means of FIG. 3 is rotated along the main shaft.

As shown in FIGS. 2 and 3, the position variable device 100 for a stacking member for a stacking machine according to the preferred embodiment of the present invention includes a support member 121a to which a stacking member is mounted in the stacking mechanism 200, A height adjusting means 110 installed to adjust the height of the main body 210, and a rotating means 120 installed to be rotatable about a shaft. Here, when the loading mechanism 200 of the present invention is a baby carriage, for example, the loading member may be a seat on which a baby is boarded. In another example, a loading member may be a basket for loading articles. That is, the loading mechanism 200 of the present invention is not limited to a baby carriage or a cart, but may be a mechanism capable of seating a person or a device capable of loading objects. Therefore, the loading member is not limited to the seat of the stroller or the basket of the cart, and can be generally referred to as a normal member on which a person is loaded or an object is loaded.

The height adjusting means 110 is a means for raising / lowering the position variable device 100, more specifically, the supporting member 121a on which the seat is mounted. As shown in FIGS. 5A and 5B, And includes a body 111, a first friction member 112, a second friction member 113, an engaging member 114, an engaging groove 115, and a first actuating member 116. 5A to 7, the height adjusting means 110 moves the first actuating member 116 to release the engagement between the first rotating body 111 and the main shaft 210, (100) including the main shaft (111) is moved up and down with respect to the main shaft (210).

5A and 5B, the first rotating body 111 is fitted into the main shaft 210 so as to penetrate therethrough and the extended portion of the second rotating body 121 of the rotating means 120 (333). At this time, the inner diameter of the first rotating body 111 is larger than the outer diameter of the main shaft 210, and the first rotating body 111 is loosely fitted to the main shaft 210. At this time, most of the inner surface of the first rotating body 111 has a certain curvature, and a part of the upper surface of the first rotating body 111 is tilted toward the outer diameter side to be processed into a fine shape. Therefore, the engaging provision portion 117 becomes a shape having an inner diameter increasingly larger than the inner diameter of the engagement space. 5b, a coupling space 118 is formed between the main shaft 210 and the most part of the main shaft 210, which has a certain curvature in a state of being engaged with the main shaft 210. [ And the provision shaft portion 117 is provided by being coupled between the main shaft portion 210 and the fins. 5B and 6B, the coupling space 118 is a space provided for coupling the first friction member 112 and the second friction member 113. The inner space of the first rotating body 111 and the inner surface of the second rotating member 111 The distance between the outer surfaces of the shaft 210 is made smaller than the thickness of the first friction member 112. [ The engaging portion 117 is a space provided for releasing the engagement between the first friction member 112 and the second friction member 113. The inner surface of the first rotating body 111 and the inner surface of the main shaft 210 The maximum gap between the outer surfaces is larger than the thickness of the first friction member 112. [ 5B, when the first and second friction members 112 and 113 face each other, when the first rotating body 111 is rotated in a plane direction as shown in FIG. 5B, The first friction member 112 is brought into close contact with the second friction member 113 by an interval and engaged with each other and rotated in the opposite direction as shown in Figure 6B, The member 112 and the second friction member 113 are moved away from each other and the mutual engagement is released. The inner surface of the first rotating body 111 may have an engaging protrusion (not shown) protruding toward the center with an inclined surface in order to replace the providing portion 117 by engaging with the engaging space portion 118 have. Accordingly, when the first rotating body 111 is rotated in a plane, the first friction member 112 is pushed by the engaging projections to be brought into tight contact with the second friction member 113, and the first friction member 112 is engaged with the engaging projections And is disengaged from the second friction member (113) when they are not in contact with each other.

The first friction member 112 is interposed between the main shaft 210 and the first rotating body 111 and is fabricated or separately manufactured and mounted so as to have an elastic force to move outwardly in a plane. At this time, when the first rotating body 111 is rotated on the plane by the elastic force of the first friction member 112 and the first friction member 112 is engaged with the providing shaft 117, the second friction member 113, respectively. In the case where the first friction member 112 is machined, a part of the upper portion of the first rotating body 111 may be cut in the height direction and cut into a branched shape at the extended portion 121b of the first rotating body 111, It is preferable that the portion of the elastic member 112 has an inclination angle that widens upward or becomes thick. That is, the first frictional member 112, which is formed in a shape that the extended portion 121b of the second rotating body 121 is cut open or thickened, is resiliently engaged or disengaged with the second frictional member 113 . On the other hand, when the first friction member 112 is separately manufactured and mounted, the first friction member 112 may be fitted into the through groove (not shown) formed through a part of the extension engagement portion 121b , And may be mounted on the second rotating body 121.

The fastening between the first friction member 112 and the second friction member 113 will be described later.

The second friction member 113 is a member that is fixed or machined in the height direction to the main shaft 210 and is interlocked or disengaged with the first friction member 112. Here, the engagement between the second friction member 113 and the first friction member 112 may be achieved by engaging the second friction member 113 and the first friction member 112, 2 friction member 113 and the coarse surfaces of the first friction member 112. In this case, The second friction member 113 may be separately manufactured and fixed to the main shaft 210 or directly to the main shaft 210.

The engaging member 114 and the engaging groove 115 can fix the rotation of the first rotating body 111 in the engaged state or the unlocked state of the first friction member 112 and the second friction member 113 . Here, the latching member 114 is in the form of a bar and one end is bent. The latching member 114 is preferably mounted such that one end of the latching member 114 is rotated or unidirectionally moved while having elasticity with respect to the first rotating body 111. The latching member 114 may further include an elastic body such as a spring for elasticity. The engaging groove 115 is machined on the surface of the main shaft 210 and can be machined at a position where the first friction member 112 and the second friction member 113 are engaged and disengaged, respectively. 5B, the engaging member 114 and the one-side engaging groove 115 are engaged with the first friction member 112 and the second friction member 113 at a position where the first friction member 112 and the second friction member 113 are engaged, The engagement of the second friction member 113 can be firmly maintained. 6B, when the first friction member 112 and the second friction member 113 are disengaged from each other, the engaging member 114 and the other engaging groove 115 are engaged with each other to form the first friction member 112, And the second friction member 113 can be maintained in the released state.

The first actuating member 116 is mounted on the first rotating body 111 so as to be resilient to push the engaging member 114 to engage or disengage the engaging member 114 and the engaging groove 115 do. As an example of the first actuating member 116, when the button is pressed, an elastic body such as a spring or the like may be mounted so as to return to the original position when an external force for pressing the button is removed. So as to be pressed. Accordingly, in this case, when the button is pushed, a part of the latching member 114 is pressed to rotate the other side portion, thereby releasing the engagement between the latching groove 115 and the other side of the latching member 114. In addition, when the external force is removed, the latching member 114 is also retracted by the elastic force while the button is retracted due to the elastic force, so that the other part of the latching member 114 is engaged with the latching groove 115. Here, the in-position operation of the button can be performed by the elastic force of the latching member 114. [

The operation of the height adjusting means 110 thus constructed will be described. 5B, when the first operating member 116 is moved in a state where the first friction member 112 and the second friction member 113 are engaged with each other, the engaging member 114 is rotated while the engaging member 114 is rotated, The engagement between the engaging groove 114 and the engaging groove 115 is released. 6B, when the first rotating body 111 is rotated in one direction on the plane and the first friction member 112 is engaged with the providing shaft 117, the external force is removed and the first operating member 116 And the engaging member 114 and the engaging groove 115 are engaged with each other while the engaging member 114 rotates in place. In this state, the position variable device 100 is moved up and down along the main shaft 210 to adjust the height. When the first actuating member 116 is moved in a state where the height of the position variable device 100 is adjusted, the engaging member 114 rotates and the engagement of the engaging member 114 and the engaging groove 115 is released . Thereafter, when the first rotating body 111 is rotated in the opposite direction on the plane and the first friction member 112 is engaged with the second friction member 113 while being positioned in the coupling space portion 118, The operating member 116 is returned to its original position and the engaging member 114 is engaged with the engaging groove 114 while the engaging member 114 rotates in place. With this operation, as shown in FIG. 7, the position variable device 100 can be varied in height along the main shaft 210 and can be firmly fixed at a variable position. Here, when the engaging member 114 and the engaging groove 115 are engaged, rotation of the first rotating body 111 in a plane is prevented. Further, the external force provided to the first actuating member 116 can be removed in a state in which the engagement of the engagement member 114 and the engagement groove 115 is released. Therefore, the first rotating body 111 rotates in a planar state in a state where the engaging member 114 is in contact with the surface of the main shaft 210 by the elastic force, and then the engaging member 114 and the engaging groove 115 may be combined at the time when the first friction member 112 is fastened or at the time when the fastening is released.

The rotating means 120 is a means for rotating the position adjusting device 100, more specifically the supporting member 121a on which the seat is mounted, as shown in FIGS. 7A and 7B, 121, an engaging member 122, an engaging groove 123, and a second actuating member 124. 7A to 9B, the rotation unit 120 moves the second actuating member 124 to release the engagement between the second rotating body 121 and the main shaft 210, The position variable device 100 including the main shaft 210 rotates about its axis.

7A and 7B, the inner circumference of the second rotating body 121 is slightly larger than the outer diameter of the main shaft 210, and the inner circumference of the main shaft 210 is larger than the outer diameter of the main shaft 210, And is mounted in a loose fitting manner. This is to allow the second rotating body 121 to carry out the charging with respect to the main shaft 210. The second rotating body 121 includes an extension engaging portion 121b that extends toward the first rotating body 111 and is inserted into the first rotating body 111 to be fastened thereto. The first friction member 112 of the height adjusting means 110 may be machined or separately manufactured and mounted on the extension portion 121b. A receiving member 121a is mounted on the tip side portion of the second rotating body 121, and a loading member is mounted or separated on the receiving member 121a. An engaging member 122 is installed inside the second rotating body 121, and a second actuating member 124 is mounted so as to partially protrude from the outside. Here, the second rotating body 121 further includes a pair of supporting members 125 arranged at predetermined intervals to fix the position of the coupling member 122. The central portion of the coupling member 122 is disposed between the supports 125 so that the coupling member 122 is not pushed backward by these supports 125.

7A to 7C, the first and second frames 122a and 122b may be rotated together with the first and second frames 122a and 122b, Respectively. More specifically, the engaging member 122 has a substantially V-shaped shape in which the one end side portion of the first frame 122a and the one end side portion of the second frame 122b are rotatably coupled. The first elastic body may be a first elastic body mounted on a connecting portion between the first frame 122a and the second frame 122b so that the first elastic body can pull apart the openings between the first frame 122a and the second frame 122b (Not shown). As the first elastic body, for example, a spring may be used. Therefore, the tip side portions of the first frame 122a and the second frame 122b are fastened or unclamped to the engaging groove 123 machined to the main shaft 210 while being widened or broken. Here, the opening and closing operations of the first frame 122a and the second frame 122b are performed by the second actuating member 124 mounted between the first frame 122a and the second frame 122b , And a detailed description thereof will be described later. In addition, the axially coupled portions of the first frame 122a and the second frame 122b are positioned between the supports 125 processed inside the second rotating body 121. [ The first frame 122a and the second frame 122b are fastened to the coupling groove 123 in a state in which the leading ends of the first frame 122a and the second frame 122b are tightened and are disengaged from the coupling groove 123 in the opened state.

The coupling groove 123 is formed as a pair having a predetermined interval so that the coupling groove 122 can be fastened to the distal end portion of the first frame 122a and the second frame 122b at a predetermined interval, . Here, when the coupling groove 123 is machined at two places at 90 degrees as shown in FIG. 7B, the second rotating body 121 can be rotated about 90 degrees as shown in FIG. 9B. Of course, depending on the machining angle of the engaging grooves 123, the second rotating body 121 may be rotated within an angle of less than 360 °. For example, the engaging grooves 123 may be formed at angles of 0 °, 90 °, 180 ° , 270 °, respectively, and they can be machined at various angles. In this case, as shown in FIGS. 7Bb and 9b, the adjacent coupling grooves 123 may be arranged such that some of the other pairs of grooves are not located between the pair of grooves. This is because the first frame 122a and the second frame 122b of the engaging member 122 may be misjoined to grooves other than the grooves to be engaged with each other. Of course, another pair of grooves may be located between the grooves constituting one pair of the neighboring engaging grooves 123.

The second actuating member 124 is a member which causes the first frame 122a and the second frame 122b to slide at the same time and spread apart as shown in Figs. 7B and 7C. The second actuating member 124 has a body 124a to which an external force is applied. Here, the body 124a has an inclined portion 124b whose lower portion, which is in contact with the first frame 122a and the second frame 122b, is narrowed downward. The inclined portion 124b is for minimizing the interference between the first frame 122a and the edge portion of the second frame 122b when the second actuating member 124 moves. For this purpose, the edge portions of the first frame 122a and the second frame 122b may be inclined at the same or similar angle as the inclined portion 124b. At this time, the body 124a may further include a guide bar 124c that protrudes from one surface of the body 124a and guides the moving direction of the body 124a. Further, it may further comprise a second elastic body (not shown) for returning the body 124a to the original position. At this time, the second elastic body is mounted on the guide bar 124c, and the guide bar 124c can maintain the position of the second elastic body. Accordingly, when the second actuating member 124 is pressed in one direction by applying an external force to the body 124a, the lower inclined portion 124b is brought into contact with the first frame 122a and the second frame 122b, The first frame 122a and the second frame 122b can overcome the elastic force of the first elastic body. In addition, when the external force is removed, the body 124a is returned by the second elastic body, and the first frame 122a and the second frame 122b are also retracted by the first elastic body. Here, the first elastic body and the second elastic body may be excluded, and at this time, an external force may push or pull the second actuating member 124 to induce axial rotation of the first frame 122a and the second frame 122b Embodiments are also possible. Here, the second actuating member 124 may further be provided with a detent projection 124c protruding outwardly to the side to limit the movement toward the engaging member 122 side.

The operation of the rotating means 120 thus constructed will be described.

7B, 8B and 8C, the second rotating body 121 is fixed to the main shaft 210. The first frame 122a and the second frame 122b of the coupling member 122, The front end portions of the first frame 122a and the second frame 122b are fastened to a pair of coupling grooves 123 machined on the main shaft 210 in a state of being closed by the first elastic body. Here, when an external force is applied and the second actuating member 124 is pressed, the first frame 122a and the second frame 122b are moved between the first frame 122a and the second frame 122b, The fastening of the engaging groove 123 on the tip ends of the first frame 122a and the second frame 122b is released. Then, when the second rotating body 121 is rotated at a predetermined angle and the external force is removed, the first and second frames 122a and 122b are rotated by the second elastic member, The first elastic body causes it to come back in place. At this time, the front end portions of the first frame 122a and the second frame 122b are fastened to the other pair of coupling grooves 123 of the main shaft 210, respectively. With this operation, the second rotating body 121 can rotate at various angles with respect to the main shaft 210.

<Electric carrier>

10 is a perspective view schematically showing a power carrier according to a preferred embodiment of the present invention. 11 is an exploded perspective view of the power unit shown in Fig.

As shown in FIG. 10, the electric carrier according to a preferred embodiment of the present invention includes a loading mechanism 200 having a loading portion and a position variable device 100, a power device 200 for moving the loading mechanism 200 by electric power, (300). Here, the detailed description of the loading mechanism 200 has been described in detail, so that a detailed description thereof will be omitted, and a brief description will be made as necessary.

The power unit 300 includes a main body 310, a power unit 320, a wheel unit 330, and a connection unit 340, as shown in FIGS. This power unit 300 is a unit for moving the loading mechanism 200 equipped with the loading unit, the main shaft 210 and the position variable device 100 by electrically connecting the loading unit 200 to the loading mechanism 200 do.

First, the main body 310 is a member to which the battery 321 and the wheel unit 330 of the power unit 320 are mounted. As shown in FIG. 11, the main body 310 is formed by fastening the upper body 311 and the lower body 312, for example. A battery 321 and a controller 323 are installed in the main body 310 and a wheel part 330 is mounted on a lower part and a connection part 340 is mounted on a front part. Also, an accelerator and a brake for adjusting the speed of the power unit 300 may be installed in the main body 310, which will be described later.

The power unit 320 drives the wheel unit 330 and includes a battery 321, a power switch (not shown), a power source 322, an accelerator (not shown), a brake and a controller 323 do.

Here, the battery 321 is installed in the main body 310 so as to be controlled by the controller 323 while being installed to apply electricity to the power source 322.

Further, the power switch is provided to transmit or disconnect the electricity of the battery 321 to the power source 322. [ The power switch may be a button type, a general switch type, or a key-inserted type. The power switch can be freely installed anywhere in the loading mechanism 200 including the handle portion of the loading mechanism 200 or the main body 310 of the power unit 300 according to the configuration of the structure.

The power source 322 may be installed in the main body 310 to directly move the front wheel 331 or the rear wheel 332 of the wheel unit 330. In addition, Or may be provided to move the front wheel 331 or the rear wheel 332 through a separate member such as a chain or the like. The power source 322 may be, for example, a motor.

The accelerator or the brake is installed to be connected to the controller 323 by wire or wirelessly while being disposed at a position where the user can operate. Here, the accelerator may be, for example, a structure of an accelerator pedal type, or a structure of a lever type which can be grasped by hand, such as a bicycle or a motorcycle. Thus, the speed of movement of the power unit 300 can be adjusted by depressing the accelerator pedal or by pulling the lever. 10 and 11, a separate braking member 313 (not shown) may be attached to the main body 310 so as to be in close contact with the front wheel 331 or the rear wheel 332. In this case, ) May be installed. An external force is applied to the braking member 313 so that the braking member 313 rotates about its axis and is brought into close contact with the front wheel 331 or the rear wheel 332 to directly stop the rotation of the front wheel 331 or the rear wheel 332. Here, as shown in the drawing, the braking member 313 may be mounted on either one or a plurality of rear wheels 332, respectively, and the rear wheels 332 may be connected to a connecting shaft (not shown) Respectively. Therefore, when an external force is applied to one of the braking members 313 and the rotation of one of the rear wheels 332 is reduced, the other rear wheel 332 is also reduced in speed by the same rotation, whereby the power unit 300 is stopped. On the other hand, the operation of the accelerator or the brake can be changed to a structure capable of controlling the power source 322 via the controller 323. [ Also, the accelerator, the brake, and the controller may be omitted, and the power unit may be configured to move only at a constant speed at all times.

The controller 323 is built in the main body 310 and is electrically connected to the power switch and the power source 322. Therefore, the controller 323 receives the signal of the power switch and controls the power source 322 to be turned on or off. Here, when the controller 323 receives the signals of the accelerator and the brake, it may receive the operation signals of the accelerator and the brake and control the degree of output of the power source 322. [

The wheel unit 330 includes a front wheel 331 and a rear wheel 332 mounted on the front and rear portions of the main body 310. The front wheel 331 and the rear wheel 332 are formed of two front wheels 331 and one rear wheel 332. The front wheel 331 and the rear wheel 332 are formed of a single front wheel 331 and two rear wheels 332, Two front wheels 331 and two rear wheels 332 or three or more front wheels 331 and rear wheels 332. The front wheel 331 and the rear wheel 332 are mounted on the lower portion of the main body 310. Wheels of the front wheel 331 and the rear wheel 332 are driven by the power source 322, The wheels become the driven wheels. Of course, both the front wheel 331 and the rear wheel 332 may be driven wheels. The wheel unit 330 may further include auxiliary wheels in addition to the front wheel 331 and the rear wheel 332. 11, when the front wheel 331 is provided, the front wheel 331 is mounted to the main body 310 via a separate intermediate member 333. [ When the rear wheel 332 is a driving wheel, the two rear wheels 332 are connected by a connecting shaft so as to perform the same rolling motion, whereby the driving force of the power source 322 is transmitted to the two rear wheels 332, So that the braking force provided to the rear wheel 332 is transmitted to the other rear wheel 332 as well.

The connecting portion 340 is for connecting the power unit 300 and the loading mechanism 200 and includes a connecting frame 341 and a fixing pin 342.

Here, the connection frame 341 has a predetermined length and is fixedly or removably installed on the front portion of the main body 310. In this case, the connection frame 341 can be detachably mounted on a part of the loading mechanism 200 and the fixing pin 342. [ Meanwhile, the connection frame 341 may be fixed to one side of the loading mechanism 200 or the main body 310, or both sides may be fixed or detachable. At this time, the connecting frame 341 can be installed so that one of the loading mechanism () or the power unit () can be pivotally rotated with respect to the other, so that the turning of the connecting frame 341 can be facilitated.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims, rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalents of the claims are to be construed as being included within the scope of the present invention do.

100: position variable device
110 :: height adjusting means
111: first rotating body
112: first friction member
113: second friction member
114:
115:
116: first operating member
117: Combined to provide executive
118:
120: rotating means
121: Second rotating body
121a: Support member
121b:
122:
122a: first frame
122b: second frame
123: Coupling groove
124: second actuating member
124a: torso
124b:
125: Support
200: loading mechanism
300: Power unit
310: main body
311: upper body
312: lower body
313:
320:
321: Battery
322: Power source
323:
330:
331: front wheel
332: rear wheel
333: absence of mediation.

Claims (14)

CLAIMS 1. A loading mechanism having a loading member, which is a basket for loading articles or a seat for loading a person,
A second rotating body 121 mounted to rotate about the main shaft 210 while the loading member is mounted on the main shaft 210, a coupling groove 123 formed in the main shaft 210, (120) having an engaging member (122) embedded in the second rotating body (121) to be released;
A first rotating body 111 mounted on the main shaft 210 so as to rotate with respect to the main shaft 210 while passing through the main shaft 210, a second friction member 113 mounted on the main shaft 210 in the height direction, And a height adjusting means 110 having a first friction member 112 which comes into contact with the inner surface of the one rotating body 111 and is pushed or returned while being engaged with the second friction member 113 And the position changing device of the loading member for a loader.
The method according to claim 1,
Wherein the second rotating body (121) is provided with an extended coupling part (121b) extended to be engaged with the first rotating body (111).
The method according to claim 1,
The engaging member 122 includes a first frame 122a and a second frame 122b mounted to rotate together and a first frame 122a and a second frame 122b mounted to rotate the first frame 122a and the second frame 122b in- And a first elastic body disposed on the first elastic member.
The method of claim 3,
The rotating means 120 further includes a second actuating member 124 installed to open the first frame 122a and the second frame 122b while moving,
The front end side portions of the first frame 122a and the second frame 122b are opened while being rotated by the second actuating member or they are disengaged or fastened to the coupling grooves 123 while being disturbed by the first elastic body And the position changing device of the loading member for a loader.
5. The method of claim 4,
The second actuating member 124 has a body 124a which is disposed between the first frame 122a and the second frame 122b and reciprocates in the second rotating body 121,
And the first frame (122a) and the second frame (122b) are pushed and opened while the body (124a) is moving.
6. The method of claim 5,
The second actuating member 124 includes a second elastic body installed on a part of the body 124a to return the body 124a to the original position, a first frame 122a and a second frame 122b And a guide bar (124c) protruded from the body (124a) and into which the second elastic body is fitted, characterized by further comprising at least one of an inclined portion (124b) narrowed downward at a contacting portion and a guide bar The position variable device of the member.
The method of claim 3,
The second rotating body 121 further includes a plurality of supports 125 arranged in a granular state with a predetermined gap therebetween,
Wherein the axially coupled portions of the first frame (122a) and the second frame (122b) are positioned between the supports (125) so as not to be pushed forward or backward.
The method of claim 3,
The coupling grooves 123 are formed in pairs so as to receive and fasten the front end portions of the first frame 122a and the second frame 122b and are formed in a large number around the circumferential surface of the main shaft 210 Of the stacking device (10).
The method according to claim 1,
The height adjusting means 110 includes an engaging space portion 118 provided between the inner surface of the first rotating body 111 and the outer surface of the main shaft 210 to have an interval smaller than the thickness of the first friction member 112, And a coupling provided provision portion 117 provided between the inner surface of the first rotating body 111 and the outer surface of the main shaft 210 so as to have an interval larger than the thickness of the first friction member 112, And an engaging protrusion protruding toward the center with an inclined surface on an inner surface of the one rotating body 111,
Characterized in that the first friction member (112) is located in the engagement space portion (118) or the engagement provision portion (117) or is located at the engagement projection and is interlocked or disengaged with the second friction member (113) A device for varying the position of a loading member.
10. The method of claim 9,
The height adjusting means 110 includes a plurality of engaging grooves 115 machined on the circumferential surface of the main shaft 210, an engaging member 114 provided to be rotatable or movable to be engaged with the engaging grooves 115, Further comprising a first actuating member (116) mounted to reciprocate in the first rotating body (111) to axially rotate or move the member (114)
At least one of an elastic body provided so as to return the first operating member 116 to the original position and an elastic body provided to return the latching member 114 to the original position,
Wherein the engaging groove 115 is formed so as to be engaged with the first engaging member 114 at a position where the first friction member 112 and the second friction member 113 are engaged or disengaged. Lt; / RTI &gt;
In the electric carrier,
A loading mechanism (200) having a position variable device (100) according to one of the claims 1 to 10;
A wheel unit 330 installed to move by the power unit 320 to move the loading mechanism 200, a main body 310 mounted with the power unit 320 and the wheel unit 330, And a power unit 300 having a main body 310 and a connecting unit 340 connecting the main body 310 and the loading mechanism 200. The loading device for a loader for a loader Electric carrier.
12. The method of claim 11,
The power unit 320 includes a power source 322 installed to drive the wheel unit 330, a battery 321 installed to apply power to the power source 322, Wherein the power switch comprises a power switch provided to the load carrier.
13. The method of claim 12,
The power unit 320 includes an accelerator installed at a lower portion of the main body 310 and configured to increase or decrease the rolling motion of the front wheel 331 or the rear wheel 332 of the wheel unit 330 driven by the power source 322, A crankshaft provided for stopping the rolling motion of the front wheel 331 or the rear wheel 332 and a crankshaft for receiving a signal from the accelerator or the brake or receiving a signal from the power unit 320 to rotate the front wheel 331 or the rear wheel 332 And a controller (323) installed to control the position of the loading member (110).
12. The method of claim 11,
The connection part 340 includes a connection frame 341 connecting the main body 310 and a part of the loading mechanism 200 and a connecting frame 341 connecting and disconnecting the connection frame 341 to the main body 310 or the loading mechanism 200. [ And a fixing pin (342) which is rotatably mounted on the carrier mounting member.

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