KR102619916B1 - Automatic Strap Device With Improved Ease Of Use - Google Patents

Abstract

An automatic strapping device with improved usability according to an embodiment of the present invention includes a base plate on which a mounting portion is formed, a tension wheel portion that is axially coupled to the mounting portion, and rotates in contact with the band to pull the band, thereby providing tension to the band. It includes a tension module that causes the tension module to be generated and a lever unit that causes the tension module to be spaced apart from the base plate through a lever operated by the user.

Description

Automatic Strap Device With Improved Ease Of Use}

The present invention relates to an automatic strapping device, and more specifically, to an automatic strapping device that improves convenience of use by allowing the band to be easily mounted.

An automatic strapping device is a portable tool used to pack items such as boxes using plastic bands. Strapping requires the process of first wrapping an item with a plastic band to create a loop, and then installing the plastic band on an automatic strapping device. At this time, the automatic strapping device is spaced a certain distance apart so that the plastic band can be mounted. Meanwhile, when a plastic band is installed, the automatic strapping device pulls the band until a certain tension is generated and creates a loop with a certain tension by welding the overlapping parts of the band.

The conventional automatic strapping device had the inconvenient problem that the user had to hold the automatic strapping device with one hand while attaching the plastic band. In addition, this automatic strapping device had a problem in that it lowered or operated while the plastic band was being mounted, causing safety accidents such as hands being caught.

Republic of Korea Patent No. 10-1653715 Strapping device with energy storage means Republic of Korea Patent No. 10-2302086 Strapping device Strapping device with gear system device, Republic of Korea Patent No. 10-1675003

Embodiments of the present invention were devised to solve the above problems, and are intended to provide an automatic strapping device that can secure tension modules in a spaced apart state.

In addition, it is intended to prevent safety accidents that occur when the tension module is operated while spaced apart.

In addition, we would like to provide an automatic strapping device that can separate or release tension modules with a simple action by the user.

In order to solve the above problems, an embodiment of the present invention includes a base plate on which a mounting portion is formed; A tension module that is axially coupled to the mounting portion and rotates in contact with the band to generate tension in the band through a tension wheel portion that pulls the band; and a lever unit that separates the tension module from the base plate through a lever operated by a user.

The tension module includes a motor unit; a driving gear unit rotated by the motor unit and determining output conditions of the tension wheel unit; A tension wheel unit that rotates by the drive gear unit and winds and pulls the band with frictional force; and a body portion disposed between the motor portion and the tension wheel portion and accommodating the driving gear portion.

It is preferable that a first support groove and a second support groove are formed at a lower end of one side of the body portion to be supported by the lever unit.

The lever unit includes a lever portion having a branched end and a lever shaft hole coupled to a lever shaft formed on one of the branched ends; and a link part that causes the tension module to be inclined and spaced apart from the base plate at a certain angle as the lever part rotates when a pulling operation by the user is applied to the lever part.

The link unit moves linearly according to the rotation of the lever unit, and includes a horizontal movement link formed with a first support roller that moves along the bottom surface of the tension module; and a release link that is axially coupled to the mounting portion and has a second support roller at one end that moves along the upper surface of the horizontal movable link.

The link part has a long shaft hole coupled to the release link at one end, and when a user pulls the lever part, a gear lock link on the other side of which is toothed and engaged with the tension module. It is desirable to include it.

It is preferable to further include a lever fixing unit that is disposed on the upper side of the lever unit and is fixed through a lock unit when the lever unit is pulled.

According to the problem solving means of the present invention as discussed above, various effects including the following can be expected. However, the present invention does not require all of the following effects to be achieved.

The automatic strapping device according to an embodiment of the present invention can improve ease of installation by fixing the tension modules in a spaced apart state.

Additionally, this automatic strapping device can improve productivity and assembly by forming internal parts in module units.

In addition, this automatic strapping device can effectively prevent safety accidents by operating only when the tension module is not separated.

In addition, this automatic strapping device can improve user convenience by allowing the tension module to be spaced or released through a simple user action.

1 is a schematic perspective view of an automatic strapping device according to one embodiment of the present invention.
Figure 2 is a perspective view schematically showing the base plate of Figure 1.
Figure 3 is a view showing the body part of Figure 1 as seen from the side.
Figure 4 is a perspective view schematically showing the lever unit of Figure 1.
Figure 5 is a diagram showing a process in which the link part of Figure 4 operates by the lever part.
Figure 6 is a diagram showing a lever fixing unit according to an embodiment of the present invention.

In order to fully understand the configuration and effects of the present disclosure, preferred embodiments of the present disclosure will be described with reference to the attached drawings. However, the present disclosure is not limited to the embodiments disclosed below, and may be implemented in various forms and various changes may be made. Hereinafter, in describing the present invention, if it is determined that related known functions may unnecessarily obscure the gist of the present invention as they are obvious to those skilled in the art, the detailed description thereof will be omitted.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms may be used only for the purpose of distinguishing one component from another. For example, a first component may be referred to as a second component, and similarly, the second component may be referred to as a first component without departing from the scope of the present disclosure.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

The terms used in this application are merely used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. Unless otherwise defined, terms used in the embodiments of the present disclosure may be interpreted as meanings commonly known to those skilled in the art.

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

Figure 1 is a schematic perspective view of an automatic strapping device according to an embodiment of the present invention, and Figure 2 is a perspective view schematically showing the base plate 100 of Figure 1. Referring to Figures 1 and 2, the present invention may include a base plate 100, a tension module 200, a lever unit 300, etc. In one embodiment, the base plate 100 is a part that forms the bottom of the present invention. A mounting portion 110 may be formed on the base plate 100. The tension module 200 may be axially coupled to the mounting portion 110. In addition, the tension module 200 rotates in contact with the band to generate tension in the band through the tension wheel unit 230, which pulls the band. Meanwhile, the lever unit 300 allows the tension module 200 to be spaced apart from the base plate 100 through the lever unit 320 operated by the user.

The bottom surface of the base plate 100 according to one embodiment is formed as a flat surface so that it can be placed on any side of the article to be strapped. Additionally, the base plate 100 may include at least one mounting element so that the modules and units constituting the present invention can be stably placed and fixed. In one embodiment, the base plate 100 may include a mounting portion 110, a mount portion 120, a slide groove 130, a limit pin 140, etc.

In one embodiment, the mounting portion 110 may be formed on one side of the upper surface of the base plate 100. At least one through hole may be formed in the mounting portion 110 to enable coupling with the tension module 200 and a portion of the lever unit 300. Meanwhile, the mount portion 120 may be disposed in a position of the base plate 100 corresponding to the tension wheel portion 230, which will be described later. A band is mounted on the upper surface of the mount unit 120. At this time, irregularities are formed in a certain pattern on the upper surface of the mount unit 120 to increase friction. In one embodiment, the upper surface of the mount unit 120 may be formed as a curved surface.

A slide groove 130 may be formed in a certain section on one side of the upper surface of the base plate 100. In one embodiment, the slide groove 130 may be in contact with the lower surface of the horizontal movable link 332, which will be described later. Meanwhile, the limit pin 140 may be placed on one side of the slide groove 130. The limit pin 140 can limit the range of movement of the horizontal movable link 332 so that the horizontal movable link 332 slides without leaving the slide groove 130. To this end, the limit pin 140 may be arranged to be spaced apart from the slide groove 130 by a predetermined height. At this time, the limit pin 140 may be arranged perpendicular to the sliding direction of the horizontal movement link 332.

In one embodiment, the tension module 200 may include a control unit (not shown), a motor unit 210, a driving gear unit 220, a tension wheel unit 230, a body unit 240, etc. The motor unit 210 may be disposed on one side of the body unit 240. The motor unit 210 rotates in one direction to provide rotational force to the tension wheel unit 230. At this time, it is preferable that the rotation direction of the motor unit 210 is the direction in which the tension wheel unit 230 winds and pulls the band. The rotational force generated by the motor unit 210 may be transmitted to the tension wheel unit 230 via the driving gear unit 220.

Meanwhile, the control unit can receive a control signal from the user and control the rotation speed and tension strength of the motor unit 210. For example, the tension strength may be adjusted step by step according to the time or speed at which the tension wheel unit 230 is rotated by the motor unit 210.

The driving gear unit 220 is rotated by the motor unit 210 and can determine the output conditions of the tension wheel unit 230. One side of the driving gear unit 220 may be coupled to the motor unit 210, and the other side may be coupled to the tension wheel unit 230. In one embodiment, the driving gear unit 220 may include a main ring gear 221, a planetary gear set 222, etc. The inner peripheral surface of the main ring gear 221 may be gear-coupled with the planetary gear set 222. In addition, teeth are formed on a portion of the outer peripheral surface of the main ring gear 221, and the teeth are engaged with the lever unit 300 so that they can be fixed.

The driving gear unit 220 may transmit rotational force to the tension wheel unit 230 depending on whether the main ring gear 221 is fixed. For example, when the main ring gear 221 is fixed by the lever unit 300, the planetary gear set 222 may rotate along the inner peripheral surface of the main ring gear 221. Through this, the driving gear unit 220 sequentially transmits rotational force so that the tension wheel unit 230 rotates. At this time, the planetary gear set 222 may rotate at a reduced speed to increase the rotational torque of the tension wheel unit 230. For this purpose, it is preferable that at least two planetary gear sets 222 are disposed.

The tension wheel unit 230 is rotated by the driving gear unit 220 and can be wound and pulled around the band using frictional force. At this time, the tension wheel unit 230 may be rotated in close contact with the band mounted on the mount unit 120. In one embodiment, the tension wheel unit 230 may be disposed on the other side of the body unit 240 opposite to the motor unit 210. The tension wheel unit 230 has a cylindrical shape, and the outer peripheral surface of the tension wheel unit 230 may include a knurled surface in which irregularities are formed in a certain pattern.

Meanwhile, the body portion 240 is disposed between the motor portion 210 and the tension wheel portion 230 and can accommodate the driving gear portion 220. In one embodiment, a body shaft hole penetrating through the body portion 240 may be formed on one side of the body portion 240 to be axially coupled to the mounting portion 110. Through this, the body portion 240 can be rotated on its axis and spaced apart from the base plate 100.

FIG. 3 is a view showing the body portion 240 of FIG. 1 as viewed from the side. In one embodiment, a first support groove 241 and a second support groove 242 may be formed at the bottom of one side of the body portion 240 to be supported by the lever unit 300. In one embodiment, the first support groove 241 and the second support groove 242 contact a support roller, which will be described later, and may be formed as a curved surface to prevent the support roller from moving away from the support groove. Meanwhile, an inclined section forming a certain angle with the ground may be formed at the bottom of one side of the body portion 240. At this time, one end of the slope section may be connected to the second support groove 242.

Figure 4 is a perspective view schematically showing the lever unit 300 of Figure 1. Referring to FIG. 4, the lever unit 300 may include a lever unit 320, a link unit 330, and the like. In addition, FIG. 5 is a diagram showing a process in which the link unit 330 of FIG. 4 operates by the lever unit 320. Referring to FIG. 5, the process of the tension module 200 being spaced apart while the lever unit 320 is pulled can be seen in the order of FIG. 5(a) to FIG. 5(c).

In one embodiment, the lever unit 320 has one end branched, and a lever shaft hole coupled to the lever shaft 310 may be formed on one of the branched ends. Meanwhile, the other one of the branched ends of the lever unit 320 may extend downward and be connected to the link unit 330.

Meanwhile, when a pulling operation by the user is applied to the link unit 330 on the lever unit 320, the tension module 200 is tilted and spaced apart from the base plate 100 at a certain angle according to the rotation of the lever unit 320. It can be done as much as possible. In one embodiment, the link unit 330 may include a connection link 331, a horizontal movement link 332, a release link 333, a gear lock link 334, etc.

The lever unit 320 and the link unit 330 may be connected by a connecting link 331. In one embodiment, one end of the connecting link 331 may be coupled to one end of the lever unit 320, and the other end may be coupled to one end of the horizontal moving link 332. In one embodiment, one end of the connecting link 331 may be pulled in the direction in which the lever unit 320 rotates. At this time, the horizontal movement link 332 coupled to the connection link 331 may slide along the connection link 331.

The horizontal movement link 332 can move linearly according to the rotation of the lever unit 320. That is, the horizontal movable link 332 can slide back and forth while placed in the slide groove 130. In one embodiment, the horizontal movement link 332 may be formed to have two stages. At this time, the first and second stages may be connected by an inclined plane. Here, the first stage is preferably formed to have a height lower than the height at which the limit pin 140 is located.

Meanwhile, a first support roller 3321 that moves along a lower surface of the tension module 200 is formed on the horizontal moving link 332. Referring to FIGS. 5(a) to 5(c), when a pulling operation by the user is applied to the lever unit 320, the first support roller 3321 may move along the inclined surface section of the body unit 240. there is. The first support roller 3321 is in contact with the second support groove 242 and can simultaneously raise and space the other side of the body portion 240 by a certain height.

In one embodiment, the release link 333 may be axially coupled to the mounting portion 110. The upper end of the release link 333 is coupled with the gear lock link 334 and can move along the shaft hole of the gear lock link 334. A protrusion is disposed at the bottom of the release link 333 to maintain a certain distance from the bottom of the mount 110 when rotating.

Meanwhile, a second support roller 3331 that moves along the upper surface of the horizontal movable link 332 may be formed at one end of the release link 333. The second support roller 3331 may be located at the first stage of the horizontal movement link 332 when a pulling operation is not applied to the lever unit 320.

Referring to FIG. 5, when a pulling operation is applied to the lever unit 320, the second support roller 3331 may be moved upward along the inclined surface of the horizontal moving link 332. At this time, referring to FIG. 5(b), the second support roller 3331 may be in contact with the first support groove 241. At this time, the release link 333 may rotate around its axis as the second support roller 3331 rises. Specifically, the upper end of the release link 333 may be moved outward, and the lower end of the release link 333 may be moved toward the mounting portion 110. At this time, the upper end of the release link 333 can move along the shaft hole to raise the gear lock link 334.

In one embodiment, the gear lock link 334 may have a long shaft hole formed at one end that is coupled to the release link 333. The other end of the gear lock link 334 is axially coupled and fixed to the body portion 240. Because of this, the gear lock link 334 can rise or fall depending on the position of the upper end of the release link 333. In one embodiment, when the gear lock link 334 is lowered, the other end 3341 of the gear lock link 334 may be tooth-coupled with the tension module 200. In contrast, when the gear lock link 334 rises, the tooth engagement between the other end 3341 and the tension module 200 may be released.

In one embodiment, the other end 3341 of the gear lock link 334 may be formed to have a certain curvature. At this time, teeth that mesh with the main ring gear 221 may be formed on the lower surface of the other end 3341. Through this, the other end 3341 can be tooth-coupled with the outer peripheral surface of the main ring gear 221 to fix the main ring gear 221. At this time, the other end 3341 may be formed to have a wider width than one side of the gear lock link 334 to increase the area in contact with the main ring gear 221.

For example, when the user's pulling action on the lever unit 320 is released, that is, when the gear lock link 334 is lowered, the other end 3341 is connected to the tension module 200, that is, the main ring gear 221 and Teeth can be combined. On the other hand, in Figure 5(b), when the lever part 320 is pulled by the user, that is, when the gear lock link 334 rises, the other end 3341 is spaced a certain distance away from the main ring gear 221. The coupling and fixation of the main ring gear 221 can be released. At this time, the tension wheel unit 230 cannot rotate as the main ring gear 221 is unfastened and the power is cut off. Through this, it is possible to prevent safety accidents such as hands getting caught when the tension wheel unit 230 is operated while spaced apart.

Meanwhile, the present invention may further include a lever fixing unit 340 that secures the lever unit 320 through the latch unit 341 when the lever unit 320 is pulled. In one embodiment, a locking groove 321 opening upward may be formed at one end of the lever unit 320. Figure 6 is a diagram showing the lever fixing unit 340 according to an embodiment of the present invention. Referring to Figure 6, the lever fixing unit 340 may include a lock portion 341, a fixing release button 342, etc. The lever fixing unit 340 may be disposed in a grip portion (not shown) located on the upper side of the lever portion 320.

The latch part 341 may be coupled to the latch groove 321 so that the lever part 320 is fixed. In one embodiment, the lock portion 341 may be inserted into the lock groove 321 to fix the lever portion 320 when one end of the lever portion 320 rises to a certain height. This can prevent the tension module 200 from lowering due to its own weight during the process of attaching the band to the tension module 200. Additionally, since the user does not have to keep holding the lever unit 320 while attaching the band, this makes it easier to attach the band.

Meanwhile, the lever unit 320 can be released from its fixation through the fixation release button 342. In one embodiment, one end of the release button 342 may be axially coupled to the grip portion. When the release button 342 is pushed by the user, the lower end of the other side of the release button 342 presses one end of the lock portion 341 so that the lock portion 341 pivots. At this time, the locking portion 341 rotates and is released from its engagement with the locking groove 321, and thus the fixation of the lever portion 320 can also be released.

In the above, preferred embodiments of the present invention have been described by way of example, but the scope of the present invention is not limited to these specific embodiments, and may be appropriately modified within the scope set forth in the claims.

100: base plate
110: Mounting part 120: Mounting part
130: Slide groove 140: Limit pin
200: Tension module 210: Motor unit
220: Driving gear unit
221: main ring gear 222: planetary gear set
230: Tension wheel part 240: Body part
241: first support groove 242: second support groove
300: Lever unit 310: Lever shaft
320: Lever part 321: Locking groove
330: link unit 331: connection link
332: Horizontal movement link 3321: First support roller
333: Release link 3331: Second support roller
334: Gear lock link 3341: Other end
340: Lever fixing unit
341: latch part 342: fixing release button

Claims (7)

A base plate on which a mounting portion is formed;
A tension module that is axially coupled to the mounting portion and rotates in contact with the band to generate tension in the band through a tension wheel portion that pulls the band; and
It includes a lever unit that separates the tension module from the base plate through a lever operated by the user,
The lever unit includes a lever portion having a branched end and a lever shaft hole coupled to a lever shaft formed on one of the branched ends; and
When a pulling operation by a user is applied to the lever unit, a link unit that causes the tension module to be inclined and spaced apart from the base plate at a certain angle as the lever unit rotates,
The link section
a horizontal movement link formed with a first support roller that moves linearly according to rotation of the lever unit and moves along a lower surface of the tension module; and
It includes a release link that is axially coupled to the mounting portion and has a second support roller at one end that moves along the upper surface of the horizontal movable link,
The horizontal moving link is formed to have two stages, and the first and second stages are connected by an inclined surface. An automatic strapping device with improved usability.

According to paragraph 1,
The tension module is
motor part;
a driving gear unit rotated by the motor unit and determining output conditions of the tension wheel unit;
A tension wheel unit that rotates by the drive gear unit and winds and pulls the band with frictional force; and
An automatic strapping device with improved usability, including a body part disposed between the motor part and the tension wheel part and accommodating the driving gear part.
According to paragraph 2,
An automatic strapping device with improved usability, characterized in that a first support groove and a second support groove are formed at a lower end of one side of the body portion to be supported by the lever unit.
delete delete According to paragraph 1,
The link section
At one end, a long shaft hole is formed that is connected to the release link,
An automatic strapping device with improved usability, further comprising a gear lock link in which a portion of the other side is tooth-coupled with the tension module when a pulling operation by the user on the lever portion is released.
According to paragraph 1,
An automatic strapping device with improved ease of use, further comprising a lever fixing unit disposed on the upper side of the lever unit and fixed through a lock unit when the lever unit is pulled.