Belt winding device

Abstract

The present invention provides a belt winding device that can automatically wind a belt flat and easily remove it. [Solution] The belt winding device 1 of the present disclosure is configured to include one or more locking portions 20 that are arranged around the rotating shaft portion 10 at a radial distance from the rotating shaft portion 10 and extend in a rod shape along the axial direction of the rotating shaft portion 10. The locking portion 20 has a first surface 21A that is radially inward when viewed in the radial direction of the rotating shaft portion 10. The first surface 21A is formed to be inclined so as it approaches the tip of the locking portion 20, it moves further away from the rotation axis of the rotating shaft portion 10. When the rotating shaft portion 10 rotates, the end of the belt BT inserted between the rotating shaft portion 10 and the locking portion 20 is locked by the first surface 21A.

Description

Technical Field

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[0001] The present invention relates to a belt take-up device.

Background Art

[0002] As a conventional device for winding a belt-like object, there is known one having a pair of rod bodies and holding portions for holding both ends of the pair of rod bodies (see, for example, Patent Document 1). This device is said to be able to easily perform preparatory work before winding, such as locking the end of the belt to the winding shaft.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, in the case of a belt used for fixing goods or the like as a belt-like object, since its width is relatively small, if winding is attempted manually, the belt is displaced into a mountain shape (the winding state is a conical state) and wound, and it is difficult to hold and wind it flat (donut shape or disk shape), and the work has been complicated.

[0005] In addition, there is a problem that when the belt is removed from the device when automatically wound using the device, the resistance is large, and the work becomes complicated at this point as well. In the conventional structure, the winding and holding of the belt cannot be performed efficiently, and since the shape of the locking member is simple, there is no ingenuity in the ease of insertion and removal, which impairs workability.

[0006] Thus, it can be said that there is room for improvement in the conventional belt take-up device.

[0007] This invention has been made in view of the circumstances described above, and its purpose is to provide a belt winding device that can automatically wind a belt flat and can be easily removed. [Means for solving the problem]

[0008] The aforementioned objectives of the present invention are achieved by the configuration described below. [1] A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, One or more locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking portion is locked by the first surface. Belt winding device. [2] The locking portion has a second surface on the radially outward side when viewed in the radial direction of the rotating shaft portion. The second surface is formed to be inclined so as it approaches the tip of the locking portion, it approaches the axis of rotation of the rotating shaft portion. The belt winding device described in [1]. [3] The locking portion is formed in a conical shape that tapers towards its tip and has a tapered circumferential surface. The tapered circumferential surface is composed of the first surface and the second surface, [2] The belt winding device described in [2]. [4] The tip of the rotating shaft portion is positioned outward in the axial direction of the rotating shaft portion compared to the tip of the locking portion. The belt winding device described in [1]. [5] Below the connecting portion, a gap space is provided that extends in the axial direction of the rotating shaft portion. The belt winding device described in [1]. [6] A plate-shaped engaging portion is formed extending in a flat plate shape and having a first surface on one side thereof, The plate-shaped engaging portion further includes a biasing portion that biases the plate-shaped engaging portion toward the tip of the rotating shaft portion along the axial direction of the rotating shaft portion, and enables the first surface to engage with one end face of the wound belt, The belt winding device described in [1]. [7] The aforementioned locking parts are provided in pairs and are arranged opposite each other with the rotating shaft portion in between. The belt winding device described in [1].

[0009] The configuration described in [1] above is preferable. in this case, The device comprises a rotating shaft, locking parts spaced apart around the rotating shaft, and a connecting part that connects them. Therefore, the end of the belt is introduced between the rotating shaft and the locking part when it is wound up. At this time, a first surface is provided on the radially inward side of the locking part, and this first surface is formed to be inclined so that it moves further away from the rotation axis of the rotating shaft as it approaches the tip of the locking part (in other words, it moves closer to the rotation axis of the rotating shaft as it approaches the base end). This configuration ensures that, at the start of winding, the end of the belt inserted between the rotating shaft and the locking part receives a locking force such as a wedge effect from the first surface at the base end where the gap is narrower, and can be securely locked in the direction of rotation. On the other hand, this inclination (shape that widens towards the tip) allows for a small movement to reduce the contact pressure between the belt and the first surface when removing the belt towards the tip after winding is complete, thereby significantly reducing frictional resistance. In this way, by providing a first surface that is inclined in a specific direction, both belt retention and removal during winding can be achieved, thereby improving the work efficiency related to belt winding. The configuration described in [2] above is preferable. in this case, The first surface (radially inner surface) has an inclination that moves away from the rotation axis of the rotating shaft as it approaches the tip, while the second surface (radially outer surface) has an inclination that moves closer to the rotation axis of the rotating shaft as it approaches the tip. As a result, the entire locking part is formed to taper towards the tip. This tapered shape allows for the efficient function of removing the belt from the locking part after belt winding and locking the belt at the start of belt winding to be achieved with a single structure. The configuration described in [3] above is preferable. in this case, By forming the locking portion in a conical shape and creating a continuous tapered circumferential surface consisting of a first surface and a second surface, an integrated shape optimized for belt winding and unwinding can be achieved. This conical guide easily leads the end of the belt to the correct position, improving stability at the start of winding. Furthermore, when unwinding the belt after winding, the belt moves smoothly along the tapered circumferential surface, resulting in uniform and reduced frictional resistance. This allows for smooth operation regardless of the angle from which the belt is removed, improving both work efficiency and safety. The configuration described in [4] above is preferable. in this case, By positioning the tip of the rotating shaft to protrude axially outward from the tip of the locking part, the rotating shaft acts as a guide during belt winding. As a result, the belt is accurately positioned in the initial stages of winding, and slippage and twisting can be prevented more adaptively. Furthermore, because the rotating shaft protrudes, the end of the belt can be easily seen and grasped after winding is complete, improving the ease of removal. In addition, it prevents the locking part from unintentionally coming into contact with other objects, thereby suppressing damage to the locking part. The configuration described in [5] above is preferable. in this case, By providing a gap space that extends in the axial direction of the rotating shaft portion below the connecting portion, a space is secured for the user to place or insert a finger when removing the belt. As a result, it becomes possible to reliably grip and pull out one end face (bottom face portion) of the wound, disc-shaped belt, and the removal operation can be performed easily and reliably. With such a configuration, the workability in the belt winding device, particularly the removability of the belt, is significantly improved. It is preferable to adopt the configuration of [6] above. In this case, By providing the plate-shaped engaging portion and the biasing portion, during belt winding, the first face of the plate-shaped engaging portion is adaptively engaged with one end face (bottom face portion) of the belt wound around by the biasing force of the biasing portion, restricting the inadvertent movement of the belt and preventing winding deviation (generation of a chevron shape). That is, the plate-shaped engaging portion functions as a guide, and the belt can be wound while being aligned (shaped) into a flat shape. On the other hand, during the removal operation, when the user moves the plate-shaped engaging portion against the biasing force (for example, presses it downward toward the proximal end side of the rotating shaft portion), the engagement (adhesion) state between the plate-shaped engaging portion and the belt end face is released. Thereby, a gap space (space) for inserting a hand below the connecting portion or the bundle of belts is secured, and the user can easily grip the bottom face portion of the wound, disc-shaped belt using that space. Thus, the configuration that enables the plate-shaped engaging portion to hold the end face of the belt can realize both the stability (alignment) during winding and the workability during removal, further enhancing the operability of the belt winding device. It is preferable to adopt the configuration of [7] above. In this case, By arranging a pair of locking portions so as to face each other with the rotating shaft portion interposed therebetween, the belt end portion can be evenly supported at two locations. As a result, deviation and displacement at the start of winding are further prevented, and uniform and stable winding can be realized. Furthermore, since the acting force is symmetrically dispersed, stress concentration on a specific portion is prevented, and the durability of the entire device can be enhanced. Also, by holding the end portion of the belt at two locations, the risk of the belt falling off during winding can be reduced, and safety is also improved. Particularly, in applications involving high tension or winding environments where accuracy is required, the effect can be显著地发挥出来.

Advantages of the Invention

[0010] According to the present invention, the belt can be automatically wound flat and can be easily removed.

[0011] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the form for carrying out the invention described below (hereinafter referred to as "embodiment") with reference to the accompanying drawings.

Brief Description of the Drawings

[0012] [Figure 1] Perspective view showing an example of the appearance of a belt winding device according to a first embodiment of the present invention [Figure 2] Schematic diagram for explaining an example of the configuration of the rotating shaft portion, locking portion, and connecting portion shown in FIG. 1 [Figure 3] Schematic diagram for explaining an example of the configuration of the space forming mechanism shown in FIG. 1 and showing an example of the normal (during winding) state [Figure 4] Schematic diagram showing an example of a state in which the space forming mechanism is lowered to remove the belt after completion of belt winding from the state shown in FIG. 3 [Figure 5] Perspective view showing an example of an initial state in which a belt is attached to a belt winding device [Figure 6] Plan view showing an example of a state in which belt winding is completed

Modes for Carrying Out the Invention

[0013] Hereinafter, one or more embodiments specifically disclosing a belt winding device according to the present invention will be described in detail with appropriate reference to the accompanying drawings.

[0014] However, unnecessarily detailed explanations may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical components may be omitted. This is to avoid the following explanation becoming unnecessarily verbose and to facilitate understanding by those skilled in the art. Also, when explaining with reference to the accompanying drawings, the same reference numerals may be assigned to identical or corresponding components. Furthermore, redundant explanations related to these may be omitted. In other words, in the accompanying drawings, parts unrelated to the explanation may be omitted in order to clearly illustrate the present invention, and similar reference numerals may be assigned to similar parts throughout the specification, and their explanations may be omitted.

[0015] Furthermore, for illustrative purposes, the sizes of components in the attached drawings may be exaggerated or reduced. For example, the sizes and thicknesses of each component shown in the drawings are arbitrarily indicated for illustrative purposes, and the following embodiments are not necessarily limited to those shown. Also, each of the attached drawings should be viewed according to the orientation of the reference numerals.

[0016] Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure, and are not intended to limit the subject matter described in the claims.

[0017] <Explanation of Terms> The terms "including" or "characterized by," which are synonymous with "containing" and "containing," are to be interpreted in an inclusive or open sense and do not exclude additional, unlisted elements or steps of the method. "Including" is a technical term used in the language of the claims and means that the named claim elements are mandatory, but other claim elements may be added to further form components within the scope of the claims. The terms "equipped with" and "having" are similarly intended to be non-exclusive and mean that there may be additional elements beyond those listed.

[0018] Furthermore, as used herein, the phrase "consisting of" excludes any element, step, or component not specified in the claim. Where the phrase "consisting of (or a variation thereof)" appears in a section of the body of the claim rather than immediately following the preamble, it limits only the elements indicated in that section, and does not exclude other elements from the claim as a whole. As used herein, the phrase "essentially consisting of" limits the scope of the claim to those that do not substantially affect the main components and novel features (singular or plural) of the claimed subject matter, in addition to the specified elements or method steps.

[0019] With respect to the terms “contains,” “consistes of,” and “essentially consists of,” if any of these three terms is used herein, the subjects disclosed and claimed in this invention may also include the use of any of the other two terms. Thus, in some embodiments not expressly noted as otherwise, any instance of “contains” may be replaced by “consistes of” or “essentially consists of.”

[0020] The terms “process” or “step” may be used explicitly or implicitly in relation to the characteristics of a process or method. However, unless otherwise specified, the order or procedure between such explicit or implicit processes or steps is not limited.

[0021] Terms such as "first" and "second" are not necessarily limited in meaning, but are sometimes used to distinguish one component from others. The terms "connect" or "join" do not necessarily mean a direct and / or permanent connection or joining of two members unless the context clearly indicates otherwise, nor do they preclude the presence of other members between the two members.

[0022] Terms such as "upper," "upper part," "lower," and "bottom" may be used for convenience to easily describe the correlation between each component shown in the drawing, and in this case, they are not intended to limit the direction in which each component is placed.

[0023] Furthermore, in this specification, singular expressions include plural expressions unless they have a clearly different meaning in context.

[0024] <First Embodiment> A first embodiment of the belt winding device 1 according to the present invention will be described based on Figures 1 to 6.

[0025] [Basic configuration of the main body of device 1] Referring to Figure 1, the basic configuration of the belt winding device 1 (hereinafter also referred to as "device") according to this embodiment will be described. Figure 1 is a perspective view showing an example of the external appearance of the belt winding device 1 of this embodiment.

[0026] As shown in Figure 1, the device 1 is composed of a rotating shaft portion 10, a plurality of locking portions 20, and a connecting portion 30. The device 1 also further includes a space-forming mechanism 40 for facilitating the removal of the belt BT after winding. The components of the device 1 will be described below.

[0027] (Configuration of the rotating shaft section 10) The rotating shaft portion 10 is formed in a cylindrical shape and is arranged to be rotatably driven with its central axis (rotation axis, center of rotation) as the center of rotation. The outer diameter of the rotating shaft portion 10 is appropriately set according to the width and thickness of the belt BT to be wound. The rotating shaft portion 10 is rotatably held at one end in the axial direction by, for example, a bearing device. The other end of the rotating shaft portion 10 is open and has a circumferential groove 11 formed therein so that it can be detachably attached to the chuck of a rotary drive tool such as an impact driver. By attaching one end of the rotating shaft portion 10 to the chuck of the impact driver by the circumferential groove 11, the rotating shaft portion 10 is rotated when the impact driver rotates.

[0028] Furthermore, in this embodiment, the tip of the rotating shaft portion 10 is positioned outward in the axial direction of the rotating shaft portion 10 compared to the tip of the locking portion 20, which will be described later. Also, in this embodiment, the outer circumferential surface of the rotating shaft portion 10 is formed flat along the axis, but is not limited to this. It may be formed in a tapered conical shape, such as the tapered circumferential surface 21 of the locking portion 20, which will be described later, in which case it is possible to further improve the ease of removal.

[0029] In this embodiment, the rotating shaft portion 10 is exemplified as being driven by a tool such as an impact driver, but the invention is not limited to this configuration. For example, the rotating shaft portion 10 may be connected to a rotational drive device (not shown), such as a motor, via a belt BT or gear (reduction gear), and driven by it.

[0030] (Configuration of the locking part 20) Each of the multiple locking portions 20 is positioned around the rotating shaft portion 10, spaced radially apart from the rotating shaft portion 10, and extends in a rod-like shape along the axial direction of the rotating shaft portion 10. The detailed configuration of the locking portions 20 will be described later.

[0031] (Configuration of the connecting section 30) The connecting portion 30 connects the base end (outer surface) of the rotating shaft portion 10 to the base end of the locking portion 20. The connecting portion 30 has a plate-like or rod-like shape that extends radially from the rotating shaft portion 10 and is fixed so as to rotate integrally with the rotating shaft portion 10. The connecting portion 30 extends radially outward from the outer surface of the lower end of the rotating shaft portion 10 and connects (links) to the base end of the locking portion 20 at its tip.

[0032] In this embodiment, a gap space SP is provided below the connecting portion 30, extending in the axial direction of the rotating shaft portion 10. This gap space SP functions as a workspace when removing the belt BT after winding is complete from the rotating shaft portion 10, thereby improving work efficiency. This gap space SP (space) is provided as a space for inserting the fingertips when removing the belt (see below).

[0033] [Regarding the configuration of the locking part 20] Referring to Figure 2, the configuration of the locking part 20 shown in Figure 1 will be explained. Figure 2 is a schematic diagram illustrating an example of the configuration of the rotating shaft portion 10, locking portion 20, and connecting portion 30 shown in Figure 1.

[0034] As shown in Figure 2, the multiple locking parts 20 in this embodiment are arranged in pairs, facing each other across the rotating shaft part 10. This opposing arrangement allows for balanced locking of the end of the belt BT, enabling stable winding while suppressing eccentric loads. During winding, the end of the belt BT is set by passing between each of the multiple locking parts 20 and the rotating shaft part 10. During winding, the end (tip) of the belt BT is set by first passing sequentially between each of the multiple locking parts 20 and the rotating shaft part 10 (initial setting, see below).

[0035] Each of the multiple locking portions 20 (two in this embodiment) has its base end fixed to the aforementioned connecting portion 30, and its tip is provided at the free end. Each of the multiple locking portions 20 is formed in a conical shape (or a similar tapered shape) that tapers towards its tip. In other words, each of the multiple locking portions 20 has a first surface 21A on the radially inward side when viewed in the radial direction of the rotating shaft portion 10, and a second surface 21B on the radially outward side.

[0036] In this embodiment, the first surface 21A of the locking portion 20 is formed to be inclined so as it approaches the tip of the locking portion 20, it moves further away from the rotation axis of the rotating shaft portion 10. This inclined formation of the first surface 21A of the locking portion 20 allows a locking force or holding force, such as a wedge effect, to act on the end of the belt BT inserted between the rotating shaft portion 10 and the locking portion 20 when the rotating shaft portion 10 rotates, thereby enabling more secure locking of the end of the belt BT. On the other hand, the second surface 21B of the locking portion 20 is formed to be inclined so as it approaches the rotation axis of the rotating shaft portion 10, it moves closer to the tip of the locking portion 20. In this way, the first surface 21A and the second surface 21B of the locking portion 20 form the tapered circumferential surfaces 21 of the locking portion 20.

[0037] [Regarding the configuration of the space formation mechanism 40] The configuration of the space formation mechanism 40 will be described with reference to Figures 3 and 4. Figure 3 is a schematic diagram illustrating an example of the configuration of the space formation mechanism 40 shown in Figure 1, as well as an example of the normal (winding) state. Figure 4 is a schematic diagram showing an example of a state in which the space-forming mechanism 40 is lowered to remove the belt BT after the belt BT has been fully wound up, starting from the state shown in Figure 3.

[0038] As shown in Figures 3 and 4, the space-forming mechanism 40 is composed of a plate-shaped engaging portion 41 and a biasing portion 45.

[0039] The plate-shaped engaging portion 41 is formed to extend in a flat plate shape (disk shape in this embodiment), and has a first surface 41A of the plate-shaped engaging portion 41, i.e., an upper surface (top surface or surface), on one side. More specifically, the plate-shaped engaging portion 41 is composed of a disc portion 42 and a flange portion 43, and an insertion hole 44 is formed in the horizontal center of the disc portion 42 of the plate-shaped engaging portion 41. The aforementioned rotating shaft portion 10, locking portion 20, and connecting portion 30 can be inserted through this insertion hole 44. The flange portion 43 of the plate-shaped engaging portion 41 extends downward and radially outward from the periphery of the disc portion 42.

[0040] The biasing portion 45 is configured to bias the plate-shaped engaging portion 41 toward its tip along the axial direction of the rotating shaft portion 10, and its upper surface can engage with one end surface (bottom surface) of the wound belt BT (see Figure 6).

[0041] Examples of the biasing portion 45 include a coil spring and a leaf spring (in this embodiment, a coil spring is used). That is, the biasing portion 45 of the space forming mechanism 40 constantly biases the plate-shaped engaging portion 41 toward the tip (upward) of the rotating shaft portion 10, and as a result of this biasing, the upper surface of the plate-shaped engaging portion 41 is constantly engaged (or in contact) with one end surface (bottom surface) of the wound belt BT.

[0042] As shown in Figure 3, the biasing force of the biasing portion 45 biases the plate-shaped engaging portion 41 toward the tip of the rotating shaft portion 10 during the belt BT winding operation. As a result, the plate-shaped engaging portion 41 comes into contact with the bottom surface of the belt BT, and its movement is restricted. This restriction prevents the belt BT from shifting in the width direction (the direction of gravity in the figure) during winding, enabling a flat and stable winding operation.

[0043] On the other hand, as shown in Figure 4, when the winding of the belt BT is completed and the wound belt BT (bundle of belt BT) is to be removed from the device 1, the user presses the plate-shaped engaging portion 41 downward (towards the base end of the rotating shaft portion 10) against the biasing force of the biasing portion 45. This operation causes the plate-shaped engaging portion 41 to descend, and the plate-shaped engaging portion 41 detaches from one end face of the belt BT (the engagement state is released), and as a result a gap space SP is formed below the bundle of belt BT, extending in the axial direction of the rotating shaft portion 10 (not shown).

[0044] The formation of this gap space SP allows the user to easily insert their fingers into the gap space SP (the space below the bundle of wound belts BT) (not shown). As a result, the user can firmly hold the bundle of wound belts BT and apply pulling force, making it possible to easily and quickly remove the bundle of belts BT from the tapered locking portion 20.

[0045] [Regarding the relationships and functions of the main components] This section explains the relationships and functions of the main components of this device 1.

[0046] With the configuration of the device 1 described above, when winding the belt BT, the end of the belt BT is sequentially inserted between the rotating shaft portion 10 and each of the pair of locking portions 20, and brought into contact with the first surface 21A of one of the locking portions 20. Because the first surface 21A of the locking portion 20 is inclined to widen towards the tip side, the end of the belt BT is naturally guided toward the base end side (inner side) of the locking portion 20, and a secure locking state is achieved.

[0047] Furthermore, because the plate-shaped engaging portion 41 of the space-forming mechanism 40 is positioned, the plate-shaped engaging portion 41 functions as a positioning guide in the width direction of the belt BT when hooking the end of the belt BT onto the locking portion 20. This function allows for a flat and stable winding operation without the belt BT shifting in the width direction (vertical direction) during winding.

[0048] When removing the bundle of belts BT after winding is complete, the fact that the locking portion 20 is formed in a tapered conical shape (tapered circumferential surface 21) is advantageous. That is, in addition to the inclination of the first surface 21A of the locking portion 20 on the inside, the second surface 21B of the locking portion 20 on the outside also has an inclination that decreases in diameter towards the tip, so that the contact resistance with the inner circumferential surface of the wound bundle of belts BT is reduced. Due to this reduction, when pulling the bundle of belts BT in the axial direction, the belts BT move very smoothly along the tapered circumferential surface 21 of the locking portion 20, making it possible to easily and quickly remove (detach) them from the pair of locking portions 20.

[0049] [Regarding usage instructions] The method of using the belt winding device 1 according to this embodiment will be described with reference to Figures 5 and 6. Figure 5 is a perspective view showing an example of the initial state in which belt BT is attached to belt winding device 1. Figure 6 is a plan view showing an example of a state after the belt BT winding is complete.

[0050] First, the user attaches the tip of the rotating shaft portion 10 to the chuck portion of a rotary drive tool (not shown), such as an electric screwdriver.

[0051] As shown in Figure 5, the user then sequentially inserts the ends (longitudinal ends) of the belt BT to be wound into the gaps between the pair of locking parts 20 (setting process).

[0052] At this time, as described above, the plate-shaped engaging portion 41 is biased toward the tip side (upward in Figure 3) of the rotating shaft portion 10 by the biasing portion 45. Therefore, one end of the inserted belt BT in the width direction comes into contact with the upper surface (i.e., the first surface 41A) of the plate-shaped engaging portion 41 and is positioned accordingly. The plate-shaped engaging portion 41 functions as a guide, making it easy for the user of the device 1 to determine the set position of the end of the belt BT.

[0053] The user then drives a rotary drive tool to rotate the rotating shaft 10 (winding process). As the rotating shaft 10 rotates, the locking part 20 rotates, and the belt BT is wound around the locking part 20. During this winding operation, the plate-shaped engaging part 41 is constantly pressed against the side (bottom surface) of the bundle of belt BT by a biasing force, or maintains a state of being close to it. This maintenance prevents the winding belt BT from collapsing in the width direction (towards the base end in the axial direction), and the belt BT is wound up in an orderly, flat manner, like a donut (or record) rather than collapsing.

[0054] As shown in Figure 6, after winding is complete, the user stops the rotary drive tool. Then, the bundle of wound belts BT is removed from the device 1 (removal process).

[0055] At this time, the user attempts to grasp the bundle of belts BT with both hands, inserting both hands between the bundle of belts BT and the plate-shaped engaging portion 41 of the space-forming mechanism 40. Consequently, the plate-shaped engaging portion 41 is pushed down toward the base end side (downward in Figure 4) of the rotating shaft portion 10 against the biasing force of the biasing portion 45.

[0056] This downward operation causes the plate-shaped engaging portion 41 to separate (detach) from the underside of the belt bundle BT, creating a sufficient gap space SP between the belt bundle BT and the connecting portion 30 for inserting fingers (see Figure 4). The user then inserts both hands further into this secured gap space SP to firmly grasp the underside of the belt bundle BT and pulls it out (removes it) towards the axial end.

[0057] At this time, since the locking portion 20 is formed in a tapered shape that narrows towards the tip, if the bundle of belts BT is moved even slightly towards the tip, the contact pressure (frictional resistance) between the belts BT and the locking portion 20 decreases rapidly. As a result, the user can easily perform the initial pulling operation by utilizing this secured gap space SP, and thereafter, the wound belts BT can be smoothly removed from the device 1 with very little force.

[0058] [Features and advantages of this embodiment] / / [1] As explained above, according to the belt winding device 1 of this embodiment, A belt winding device 1 for winding a belt BT includes a rotationally driven rotating shaft portion 10, one or more locking portions 20 arranged around the rotating shaft portion 10 at radial distances from the rotating shaft portion 10 and extending in a rod shape along the axial direction of the rotating shaft portion 10, and a connecting portion 30 that connects the rotating shaft portion 10 and the locking portions 20 in the radial direction of the rotating shaft portion 10. The locking portion 20 has a first surface 21A on the radially inward side when viewed in the radial direction of the rotating shaft portion 10. The first surface 21A is formed to be inclined so as it moves away from the rotation axis of the rotating shaft portion 10 towards the tip of the locking portion 20. When the rotating shaft portion 10 rotates, the end of the belt BT inserted between the rotating shaft portion 10 and the locking portion 20 is locked by the first surface 21A.

[0059] As a result, The assembly comprises a rotating shaft portion 10, locking portions 20 spaced apart around the rotating shaft portion 10, and a connecting portion 30 that connects them. Therefore, the end of the belt BT is introduced between the rotating shaft portion 10 and the locking portion 20 when winding. At this time, a first surface 21A is provided on the radially inward side of the locking portion 20, and this first surface 21A is formed to be inclined so that it moves further away from the rotation axis of the rotating shaft portion 10 as it approaches the tip of the locking portion 20 (in other words, it moves closer to the rotation axis of the rotating shaft portion 10 as it approaches the base end). This configuration ensures that, at the start of winding, the end of the belt BT inserted between the rotating shaft portion 10 and the locking portion 20 receives a locking force such as a wedge effect from the first surface 21A at the base end where the gap is narrower, and can be securely locked in the direction of rotation. On the other hand, this inclination (shape that widens towards the tip) allows for a significant reduction in frictional resistance when removing the belt BT towards the tip after winding is complete, by reducing the contact pressure between the belt BT and the first surface 21A with only slight movement. In this way, by providing the first surface 21A inclined in a specific direction, both belt BT retention and removal during winding can be achieved, thereby improving the work efficiency related to winding the belt BT.

[0060] / / [2] Furthermore, according to the belt winding device 1 of this embodiment, The locking portion 20 has a second surface 21B on the radially outward side when viewed in the radial direction of the rotating shaft portion 10. The second surface 21B is formed to be inclined so as it approaches the rotation axis of the rotating shaft portion 10 towards the tip of the locking portion 20.

[0061] As a result, The first surface 21A (radially inward surface) has an inclination that moves away from the rotation axis of the rotation shaft portion 10 as it approaches the tip, and the second surface 21B (radially outward surface) has an inclination that moves closer to the rotation shaft portion 10 as it approaches the tip, so that the locking portion 20 as a whole tapers towards the tip. This tapered shape allows for the efficient realization of the functions of removing the belt BT from the locking portion 20 after the belt BT has been wound up, and locking the belt BT when the belt BT winding begins, with a single structure.

[0062] / / [3] Furthermore, according to the belt winding device 1 of this embodiment, The locking portion 20 is formed in a conical shape that tapers towards its tip and has a tapered circumferential surface 21. The tapered circumferential surface 21 is composed of a first surface 21A and a second surface 21B.

[0063] As a result, By forming the locking portion 20 in a conical shape and having a continuous tapered circumferential surface 21 consisting of a first surface 21A and a second surface 21B, an integrated shape optimized for belt BT winding and unwinding can be achieved. This conical shape guides the end of the belt BT to the correct position, improving stability at the start of winding. Furthermore, when unwinding the belt BT after winding, the belt BT moves smoothly along the tapered circumferential surface 21, resulting in uniform and reduced frictional resistance. This allows for smooth operation regardless of the angle from which the belt BT is removed, improving both work efficiency and safety.

[0064] / / [4] Furthermore, according to the belt winding device 1 of this embodiment, The tip of the rotating shaft portion 10 is positioned outward in the axial direction of the rotating shaft portion 10 compared to the tip of the locking portion 20.

[0065] As a result, By positioning the tip of the rotating shaft portion 10 to protrude axially outward from the tip of the locking portion 20, the rotating shaft portion 10 acts as a guide during belt BT winding. As a result, the belt BT is accurately positioned in the initial stages of winding, and slippage and twisting can be prevented more adaptively. Furthermore, because the rotating shaft portion 10 protrudes, the end of the belt BT can be easily seen and grasped after winding is complete, improving the ease of removal. In addition, it is possible to prevent the locking portion 20 from unintentionally coming into contact with other objects, thereby suppressing damage to the locking portion 20.

[0066] / / [5] Furthermore, according to the belt winding device 1 of this embodiment, Below the connecting portion 30, a gap space SP is provided that extends in the axial direction of the rotating shaft portion 10.

[0067] As a result, By providing a gap space SP below the connecting portion 30 that extends in the axial direction of the rotating shaft portion 10, a space is secured for the user to place or insert their fingers when removing the belt BT. As a result, one end surface (bottom surface) of the wound-up disc-shaped belt BT can be securely gripped and pulled out, making the removal work easy and reliable. This configuration significantly improves the workability of the belt winding device 1, especially the ease of removing the belt BT.

[0068] / / [6] Furthermore, according to the belt winding device 1 of this embodiment, The present invention further includes a plate-shaped engaging portion 41 that extends in a flat shape and has a first surface 41A on one side thereof, and a biasing portion 45 that biases the plate-shaped engaging portion 41 toward the tip of the rotating shaft portion 10 along the axial direction of the rotating shaft portion 10, enabling the first surface 41A to engage with one end surface of the wound belt BT.

[0069] As a result, By providing the plate-shaped engaging portion 41 and the biasing portion 45, during belt BT winding, the biasing force of the biasing portion 45 causes the first surface 41A of the plate-shaped engaging portion 41 to adaptively engage with one end surface (bottom surface) of the belt BT being wound, restricting the unintentional movement of the belt BT and preventing winding misalignment (occurrence of a V-shape). In other words, the plate-shaped engaging portion 41 functions as a guide, allowing the belt BT to be wound while being shaped into a flat form. On the other hand, during removal, the user moves the plate-shaped engaging portion 41 against the biasing force (for example, by pushing it down toward the base end of the rotating shaft portion 10), thereby releasing the engagement (tight contact) between the plate-shaped engaging portion 41 and the end surface of the belt BT. This secures a gap space SP for inserting a hand below the connecting portion 30 or the bundle of belt BT, and the user can use this space to easily grasp the bottom surface of the wound, disc-shaped belt BT. Thus, the configuration that allows the end face of the belt BT to be held by the plate-shaped engaging portion 41 achieves both stability (alignment) during winding and ease of removal, thereby further improving the operability of the belt winding device 1.

[0070] / / [7] Furthermore, according to the belt winding device 1 of this embodiment, A pair of locking parts 20 are provided, positioned opposite each other with the rotating shaft part 10 in between.

[0071] As a result, By arranging a pair of locking parts 20 opposite each other with the rotating shaft part 10 in between, the end of the belt BT can be evenly supported at two points. As a result, unevenness and misalignment at the start of winding are better prevented, and uniform and stable winding can be achieved. Furthermore, since the applied force is distributed symmetrically, stress concentration at specific points is prevented, and the overall durability of the device 1 can be increased. In addition, by holding the end of the belt BT at two points, the risk of the belt BT falling off during winding is reduced, and safety is also improved. This effect is particularly noticeable in applications involving high tension and winding environments where precision is required.

[0072] [• One or more variations of this embodiment] One or more modifications of this embodiment will be described below.

[0073] In addition, with regard to the description of one or more modifications, components that are identical or equivalent to those in the first embodiment described above may be denoted by the same or equivalent reference numerals in the description and / or drawings, and their description may be omitted or simplified. Furthermore, the subject matter of the technical content described in these claims is not intended to be limited in any way to these one or more modifications.

[0074] (• First variation) As a modified example, this configuration omits the space-forming mechanism 40 (plate-shaped engaging portion 41 and biasing portion 45) in the above-described embodiment. Specifically, instead of providing a space that is always open below the connecting portion 30, a finger-holding recess is formed at the base of, for example, the support portion or base portion (not shown). This recess is located near or directly below the connecting portion 30 and is formed so that the user's finger (for example, index finger or middle finger) can be easily inserted. The shape of the recess can be, for example, a semicircular, elliptical, or rectangular recess.

[0075] During the belt BT winding operation, the ends of the belt BT are inserted sequentially between the pair of locking parts 20, as in the embodiment described above, and the rotating shaft part 10 is rotated to wind up the belt BT. When removing the belt BT from the device 1 after winding is complete, the user inserts their fingers (for example, index finger and middle finger) into the aforementioned recess.

[0076] In this state, the user can use the finger inserted into the recess as a fulcrum or point of application to apply force upward from the underside of the bundle of wound belts BT. Alternatively, while stably holding the main body of device 1 with a finger in the recess, the user can grasp the bundle of wound belts BT with their other hand and apply force to pull it out in the axial direction.

[0077] Since the locking portion 20 is formed with a tapered circumferential surface 21 that narrows towards the end, there is little resistance when pulling out the bundle of belts BT in the axial direction, and the user can easily and quickly remove the bundle of belts BT while stably holding the device 1 using the recess.

[0078] According to this modified version, the space-forming mechanism 40 (plate-shaped engaging portion 41 and biasing portion 45) can be omitted, thereby reducing the number of parts, lowering manufacturing costs, and making the device 1 lighter. Furthermore, the reduction in moving parts is expected to reduce the risk of failure and improve maintainability.

[0079] <Finally> This concludes the description of specific embodiments and examples. However, the embodiments of the present invention are not limited to these embodiments and examples, and modifications and improvements can be made as appropriate.

[0080] In other words, it is clear to those skilled in the art that various examples of modifications, alterations, substitutions, additions, deletions, and equivalents can be conceived within the scope of the claims, and these are naturally understood to fall within the technical scope of this disclosure. Furthermore, the components of the embodiments described above may be combined in any way without departing from the spirit of the present invention.

[0081] Furthermore, when the specification and claims of this patent are translated into English or other languages, several terms will be referenced, and these terms will be interpreted as having the following meanings.

[0082] The singular forms "a," "an," and "the" include multiple references unless explicitly indicated otherwise in the context.

[0083] "Optional" or "optionally" means that the event or situation described afterward may or may not occur, and the description includes examples of the event occurring and examples of the event not occurring.

[0084] The linguistic approximations used throughout this specification and claims may be applied to modify any quantitative expression that may change to an acceptable degree without altering the underlying function of the expression. That is, values ​​modified by terms such as “about,” “approximately,” and “substantially” are not limited to the specified exact value. In at least some examples, the approximating language may correspond to the precision of an instrument used to measure a value. Throughout this specification and claims, limitations on ranges may be combined and / or interchanged. Such ranges are specified and include all subranges contained therein unless the context or language indicates otherwise.

[0085] <Note> Furthermore, the features of the belt winding device (1) according to one or more embodiments and examples described above are briefly summarized below in [1] to [7].

[0086] [1] A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, One or more locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking portion is locked by the first surface. Belt winding device. [2] The locking portion has a second surface on the radially outward side when viewed in the radial direction of the rotating shaft portion. The second surface is formed to be inclined so as it approaches the tip of the locking portion, it approaches the axis of rotation of the rotating shaft portion. The belt winding device described in [1]. [3] The locking portion is formed in a conical shape that tapers towards its tip and has a tapered circumferential surface. The tapered circumferential surface is composed of the first surface and the second surface, [2] The belt winding device described in [2]. [4] The tip of the rotating shaft portion is positioned outward in the axial direction of the rotating shaft portion compared to the tip of the locking portion. The belt winding device described in [1]. [5] Below the connecting portion, a gap space is provided that extends in the axial direction of the rotating shaft portion. The belt winding device described in [1]. [6] A plate-shaped engaging portion is formed extending in a flat plate shape and having a first surface on one side thereof, The plate-shaped engaging portion further includes a biasing portion that biases the plate-shaped engaging portion toward the tip of the rotating shaft portion along the axial direction of the rotating shaft portion, and enables the first surface to engage with one end face of the wound belt, The belt winding device described in [1]. [7] The aforementioned locking parts are provided in pairs and are arranged opposite each other with the rotating shaft portion in between. The belt winding device described in [1]. [Industrial applicability]

[0087] The present invention is useful as a belt winding device (1) that can automatically wind a belt (BT) flat and easily remove it. [Explanation of Symbols]

[0088] 1: Belt winding device (device) 10: Rotating shaft 11: Peripheral groove 20: Locking part 21: Tapered surface 21A: First surface 21B: Second side 30:Connection part 40: Space formation mechanism 41: Plate-shaped engaging portion 41A: First surface 42: Disc section 43: Tsuba (sword guard) 44: Through hole 45: Sustaining part BT: Belt SP: Gap space

Claims

1. A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, One or more locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking part is locked by the first surface. The locking portion has a second surface on the radially outward side when viewed in the radial direction of the rotating shaft portion. The second surface is formed to be inclined so as it approaches the tip of the locking portion, it approaches the rotation axis of the rotating shaft portion. Belt winding device.

2. The locking portion is formed in a conical shape that tapers towards its tip and has a tapered circumferential surface. The tapered circumferential surface is composed of the first surface and the second surface, The belt winding device according to claim 1.

3. A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, One or more locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking part is locked by the first surface. The tip of the rotating shaft portion is positioned outward in the axial direction of the rotating shaft portion compared to the tip of the locking portion. Belt winding device.

4. A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, One or more locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking part is locked by the first surface. Below the connecting portion, a gap space is provided that extends in the axial direction of the rotating shaft portion. Belt winding device.

5. A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, One or more locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking part is locked by the first surface. The present invention further includes a plate-shaped engaging portion that extends in a flat manner and has a first surface on one side thereof, and a biasing portion that biases the plate-shaped engaging portion toward the tip of the rotating shaft portion along the axial direction of the rotating shaft portion, and enables the first surface to engage with one end surface of the wound belt, Belt winding device.

6. A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, One or more locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking part is locked by the first surface. The aforementioned locking parts are provided in pairs and are arranged opposite each other with the rotating shaft portion in between. Belt winding device.

7. A belt winding device for winding up a belt, A rotating shaft that is driven to rotate, A plurality of locking portions are arranged around the rotating shaft portion, spaced radially apart from the rotating shaft portion, and extending in a rod shape along the axial direction of the rotating shaft portion, The rotating shaft portion and the locking portion include a connecting portion that connects them in the radial direction of the rotating shaft portion, The locking portion has a first surface facing radially inward when viewed in the radial direction of the rotating shaft portion. The first surface is formed to be inclined so as it approaches the tip of the locking portion, it moves away from the rotation axis of the rotating shaft portion. When the rotating shaft rotates, the end of the belt inserted between the rotating shaft and the locking part is locked by the first surface. The plurality of locking parts are arranged to be spaced apart from each other in the circumferential direction with respect to the axis of the rotating shaft. Belt winding device.

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