Portable bundling device with protective cover

Abstract

To provide a portable (handy type) bundling device with improved safety.SOLUTION: The portable bundling device with a protective cover includes: a bundling mechanism that contacts bundling straps wrapped around steel products being articles to be bundled to perform a bundling process of the straps; a drive mechanism that drives the bundling mechanism; and a protective cover attached to cover at least a part of the perimeter of the bundling mechanism and comprising a thin metal sheet having no welded portions and having folds.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a strapping device that uses a strapping strap such as a band iron to strap and tighten objects to be strapped, and more particularly to a portable strapping device equipped with a protective cover to improve operator safety. [Background technology]

[0002] In modern society, metals are essential materials, and various industrial products, including automobiles, are manufactured every day. Such industrial products are generally manufactured on factory lines. Metal materials manufactured at steelworks and other plants are transported to various factories by transport vehicles, for example, wound into rolls (hereinafter also referred to as metal coils) or bundled together as rebar.

[0003] Here, the above-mentioned metal coils and multiple reinforcing bars can be transported in a state where they are bound together with binding straps (also called hoops, cable ties, iron bands, etc.). At this time, the binding straps wrapped around the steel material (the above-mentioned metal coils and multiple reinforcing bars, etc.) as the objects to be bound are bound together via a sealing material by a binding device such as that exemplified in the following patent document. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-245912 [Patent Document 2] JP 2001-122218 A [Patent Document 3] JP 2004-238017 A Summary of the Invention [Problem to be solved by the invention]

[0005] Not only the above-mentioned patent documents, but the current technology does not yet meet the needs of the market, and the following problems exist. That is, according to the above-mentioned patent documents, it is certainly possible to efficiently bind relatively large objects to be bound using binding straps. In such cases, it is possible for an operator to perform the binding work by remote control using a large-scale binding device, and it is assumed that safety is maintained because the distance between the binding device and the operator is relatively large.

[0006] On the other hand, the objects to be bound required for the manufacture of industrial products are not limited to the large quantities described above. There is also a need to transport relatively small quantities of steel, wood, or resin materials to a desired factory. In such cases, it is expected that workers engaged in the binding work will manually bind the objects to be bound with binding straps using, for example, a handheld binding device. In such cases, the workers will be in close proximity to the binding device, so greater consideration must be given to safety. The present disclosure has been made in consideration of the above-mentioned problems as an example, and aims to provide a portable (handy-type) binding device with improved safety. [Means for solving the problem]

[0007] In order to solve the above problems, according to one aspect of the present disclosure, there is provided a method for manufacturing a strapping device, comprising: (1) a strapping mechanism that contacts a strap wrapped around an object to be strapped and performs a strapping process for the strapping strap; and a protective cover that is attached to cover at least a portion of the periphery of the strapping mechanism and is made of a metal sheet having a bent portion and no welded portion. The binding mechanism includes a sealer mechanism that seals the sealant attached to the tightened binding strap, and a feed wheel that tightens the binding strap at a stage subsequent to the sealer mechanism, and the protective cover is attached so as to cover the outer side surface of the sealer mechanism via a leaf spring that constitutes the bent portion. A portable binding device is provided.

[0010] Also, as mentioned above ( 1 In the portable binding device described in 2 ) The bent portion preferably has a notch for hooking onto at least a portion of the sealer mechanism.

[0011] In order to solve the above problem, according to one aspect of the present disclosure, ( 3) The present invention includes a binding mechanism that contacts a binding strap wrapped around an object to be bound and performs a binding process for the binding strap, and a protective cover that is attached to cover at least a portion of the periphery of the binding mechanism and is made of a metal sheet having a bent portion and no welded portion, The tying mechanism includes a baling holder that supports the tying strap, and a feed wheel that clamps the tying strap between the baling holder and the baling holder to tighten the tying strap, and the protective cover is attached to a periphery of the feed wheel so as to cover at least a portion of the feed wheel. A portable binding device is provided, characterized in that .

[0012] Also, as mentioned above ( 3 In the portable binding device described in 4 ) It is preferable that the protective cover is attached to the main body by having a drive mechanism mounted thereon, the drive mechanism including a main shaft to which the feed wheel is attached and a shaft drive motor for rotating the main shaft, the main body including a hanger for rotatably suspending and supporting the main shaft, and a hanger shaft for supporting the bearing holder and the hanger, and the protective cover is attached to the main body by having the folded portion of the protective cover hook into a recess of the hanger.

[0013] Also, as mentioned above ( 4 In the portable binding device described in 5 ) The drive mechanism preferably includes an air motor or air cylinder that uses compressed air to bind the binding straps. Effect of the Invention

[0014] According to the present disclosure, it is possible to provide a portable (handy) binding device with improved safety by covering at least a portion of the binding mechanism with a protective cover made of a thin metal plate with bent portions and no welded portions. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view showing the appearance of a steel material binding device according to a first embodiment. [Diagram 2] FIG. 2 is an enlarged view of the periphery of a protective cover in the steel material binding device according to the first embodiment. [Diagram 3] FIG. 2 is a perspective view for explaining a manner in which a protective cover is attached in the steel material binding device according to the first embodiment. [Figure 4] FIG. 2 is a perspective view of the exterior showing a detailed structure of the protective cover according to the first embodiment. [Diagram 5] 4 is an external view of the protective cover according to the first embodiment, seen from a different direction. FIG. [Figure 6] 4 is a perspective view for explaining a locked state of a protective cover in the steel material binding device according to the first embodiment. FIG. [Figure 7] 3A and 3B are schematic diagrams showing the steel material binding device according to the first embodiment with a protective cover attached, as viewed from the top and bottom. [Figure 8] FIG. 4 is a perspective view showing the appearance of a steel material binding device according to a second embodiment. [Figure 9] FIG. 11 is an enlarged view of the periphery of a protective cover in a steel material binding device according to a second embodiment. [Figure 10] FIG. 11 is a perspective view for explaining a manner in which a protective cover is attached in a steel material binding device according to a second embodiment. [Figure 11] FIG. 11 is a perspective view of the exterior showing a detailed structure of a protective cover according to a second embodiment. [Figure 12] 13 is an external view of the protective cover according to the second embodiment, seen from a different direction. FIG. [Figure 13] FIG. 11 is a perspective view for explaining the locked state of a protective cover in a steel material binding device according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Next, a preferred embodiment of the present disclosure will be described. In this specification and drawings, components having substantially the same functional configuration will be denoted by the same reference numerals to avoid repetitive description. In addition, for configurations other than those described in detail below, BESTOP (registered trademark), a known hand tool for bundling already marketed by the present applicant, may be referred to, and the present disclosure may be implemented by appropriately supplementing known bundling devices (tighteners, sealers) including those described in the above patent documents, and known objects to be restrained, such as manufactured metal coils and reinforcing bars.

[0017] [First embodiment] <Steel binding device 100A> First, a steel material binding device 100A according to a first preferred embodiment of a binding device in the present disclosure will be described with reference to Figures 1 to 7. Note that in the following, a metal coil will be taken as an example of an object to be bound, and a steel material binding device that binds this metal coil with a binding strap will be described, but the present invention can also be applied to objects to be bound other than metal coils (for example, other metal materials, wood, or resin materials).

[0018] As described above, the steel material binding device of the present invention is configured with a function of contacting a binding strap wrapped around an object to be bound and binding the binding strap. Also, as is clear from the figure, one of the features of the steel material binding device of the present invention is that it is a portable (handy) type that an operator can hold in his / her hand to bind the binding strap.

[0019] Here, the term "binding strap" refers to a known binding band used to bind objects during transport, etc. Such binding bands are preferably made of known metal or resin, for example. For example, a binding strap made of metal may also be called a metal strap or a binding band.

[0020] The "object to be bound" is not particularly limited as long as the binding device of the present disclosure is applicable, but suitable examples include known metal coils in which metal sheets rolled into thin sheets are rolled, and multiple reinforcing bars of a predetermined length. In this way, the binding device of the present disclosure is optimal for binding known steel materials, but it can also be applied to various known transport objects other than steel materials.

[0021] A steel material binding device 100A, which is a preferred embodiment of such a steel material binding device, is configured to include at least a binding mechanism 10, a drive mechanism 20, and a protective cover 40, as shown in FIGS.

[0022] The binding mechanism 10 is configured to have the function of contacting a binding strap wound around a steel material (such as the above-mentioned metal coil) as an object to be bound, and binding the binding strap.

[0023] As can be understood from Figure 1 and other figures, the binding mechanism 10 in this embodiment is composed of a sealer mechanism 11 that seals the binding strap, a sealer drive mechanism 12 for driving this sealer mechanism 11, a tightener mechanism 13 that tightens the binding strap wrapped around the object to be bound, a tightener drive mechanism 14 for driving this tightener mechanism 13, and an actuating lever 15.

[0024] 2, 3 and 6, the sealer mechanism 11 is configured to have a function of sealing the binding strap in a state in which it is tightened around the bound object. As a more specific sealing mode, the sealer mechanism 11 of this embodiment has a function of crimping (caulking) a part of a known sealing material attached to the binding strap.

[0025] The sealer mechanism 11 includes a known crimping section 11a that crimps the binding strap, and a front plate 11b and a back plate 11c that support the crimping section 11a by clamping it. As shown in FIG. 1, a sealer drive mechanism 12 (described later) is connected to the tops of the front plate 11b and the back plate 11c.

[0026] The sealer drive mechanism 12 is configured to have a function of receiving a drive force from a known drive source and driving the crimping processing portion 11a by the drive force. For example, a known air cylinder mechanism can be used as the sealer drive mechanism 12. When the sealer drive mechanism 12 is configured as an air cylinder mechanism, a known air compressor that can be powered by a commercial power source can be used as the drive source.

[0027] In this embodiment, the tightener mechanism 13 is integrated with the above-mentioned sealer mechanism 11, as shown in FIG. 6, and includes a feed wheel 13a that tightens the binding strap downstream of the sealer mechanism 11, and a bearing holder 13b that rotatably supports the feed wheel 13a and supports the binding strap together with the feed wheel 13a to tighten (or wrap) it.

[0028] In this embodiment, the bearing holder 13b of the tightener mechanism 13 is connected to the back plate 11c of the sealer mechanism 11, so that the sealer mechanism 11 and the tightener mechanism 13 are integrated.

[0029] The tightener drive mechanism 14 is configured to have the function of receiving a drive force from the drive source and rotating the feed wheel 13a by the drive force. When the drive source is an air compressor, a known gear mechanism that can be driven by compressed air is preferable as the tightener drive mechanism 14. This makes it possible for the sealer drive mechanism 12 and the tightener drive mechanism 14 to share a drive source in this embodiment.

[0030] The actuating lever 15 is configured to have the function of actuating the sealer drive mechanism 12 and the tightener drive mechanism 14. More specifically, as shown in Fig. 3 etc., the actuating lever 15 of this embodiment is configured to include a first actuating lever 15A that actuates the tightener drive mechanism 14, and a second actuating lever 15B that actuates the sealer drive mechanism 12. Note that although the actuating lever 15 of this embodiment uses separate switches for the sealer drive mechanism 12 and the tightener drive mechanism 14, it may also be configured as a single switch mechanism by, for example, adjusting the depression stroke.

[0031] The drive mechanism 20 is configured to have the function of receiving a drive force from a known drive source to drive the sealer mechanism 11 and the tightener mechanism 13 in the binding mechanism 10. The drive mechanism 20 in this embodiment is configured by the sealer drive mechanism 12, the tightener drive mechanism 14, and the start lever 15, which each constitute a part of the binding mechanism 10.

[0032] Furthermore, when the driving source is an air compressor as described above, it is desirable that the driving mechanism 20 be a known air motor or a known air cylinder capable of rotating the feed wheel 13a or driving the crimping processing portion 11a using compressed air from the air compressor.

[0033] The protective cover 40 is attached so as to cover at least a portion of the periphery of the binding mechanism 10, and has a function of preventing foreign objects (e.g., an operator's fingers or objects unrelated to the binding process, such as other tools) from entering the binding processing section (sealer or tightener). More specifically, the protective cover 40A in this embodiment is attached so as to cover at least a portion of the periphery of the binding mechanism 10, as shown in Figures 1 to 4, and is made of a metal sheet with bent parts and no welded parts.

[0034] More specifically, the protective cover 40A of this embodiment may be attached to the periphery of the above-mentioned sealer mechanism 11. That is, as shown in Fig. 2 and Fig. 3, the protective cover 40A is preferably attached so as to cover the outer side surface of the front plate 11b of the sealer mechanism 11 via the leaf spring constituting the above-mentioned bent portion.

[0035] <Detailed structure and mounting manner of protective cover 40A> Next, the detailed structure and mounting manner of the protective cover 40A in this embodiment will be described with reference to Figs. As shown in Figures 4 and 5, one of the characteristics of the protective cover 40A is that it is made of a single metal plate and does not have any welded parts. More specifically, the protective cover 40A of this embodiment can be manufactured by punching out a metal plate (hereinafter, this metal plate is also referred to as a "base metal plate") having an outer shape that will ultimately become the three-dimensional shape shown in Figure 4 from a rectangular metal plate by press processing or the like, and then bending the peripheral parts. In this way, since no welding work is required to manufacture the protective cover 40A, it is possible to reduce costs and manufacturing time.

[0036] The protective cover 40A has a main surface portion 41 capable of covering the bundling processing portion described above. This main surface portion 41 may be configured as a flat plate as shown in Fig. 5, etc., or may have at least a partially curved portion. In addition, the protective cover 40A has first-stage folded side portions 42A and 42B (collectively referred to as "first-stage folded side portions 42"; the same applies below) that are folded at the left and right lateral edges (Y direction in Figure 4) of the main surface portion 41.

[0037] In this way, the first-stage bent side portion 42 can be formed by bending a desired portion of the base metal plate with reference to the boundary with the main surface portion 41. Therefore, the first-stage bent side portion 42 can also be called a primary bent portion 1stBD because it can be formed by bending the base metal plate in one step. Note that the angle between the main surface portion 41 and the first-stage bent side portion 42 is preferably, for example, approximately 90 degrees.

[0038] The protective cover 40A also has second-stage bent bottom surface portions 43A and 43B, which are formed by bending the vertically downward (negative Z direction in FIG. 4) peripheries of the first-stage bent side surface portions 42A and 42B inward. The second-stage bent bottom surface portion 43 can be formed by bending a desired portion of the base metal plate with reference to the boundary with the first-stage bent side surface portion 42. Therefore, the second-stage bent bottom surface portion 43 can also be called a secondary bent portion 2ndBD, since it can be formed from the base metal plate by bending in a total of two stages. The angle between the first-stage bent side surface portion 42 and the second-stage bent bottom surface portion 43 is preferably set in a shape that follows the bottom surface shape of the sealer mechanism 11.

[0039] Furthermore, the protective cover 40A has second-stage folded back portions 44A and 44B, which are formed by folding the periphery of the first-stage folded side portions 42A and 42B on the opposite side to the main surface portion 41 (negative X direction in FIG. 4) inward (in other words, facing the main surface portion 41). The second-stage folded back portion 44 can be formed by folding a desired portion of the base metal plate based on the boundary with the first-stage folded side portion 42. Therefore, the second-stage folded back portion 44 can also be called a secondary folded portion 2ndBD, since it can be formed from the base metal plate by bending in a total of two stages. Note that the angle between the first-stage folded side portion 42 and the second-stage folded back portion 44 is preferably, for example, approximately 90 degrees.

[0040] Furthermore, the protective cover 40A has third-stage bent portions 45A and 45B formed by bending the peripheral edges of the second-stage bent rear portions 44A and 44B on the opposite side to the first-stage bent side portions 42A and 42B (inner side in FIG. 4) outward (in other words, in the direction away from the main surface portion 41, in the negative X direction in FIG. 4). The third-stage bent portion 45 can be formed by bending a desired portion of the base metal plate based on the boundary with the second-stage bent rear portion 44. Therefore, the third-stage bent portion 45 can also be called a tertiary bent portion 3rdBD, since it can be formed by bending the base metal plate in a total of three stages.

[0041] The bending angle of such third-stage bent portion 45 (3rdBD) from second-stage bent rear portion 44 is not particularly limited as long as notch portion 46 described later can be formed, and may be any value within a range of, for example, 10° to 80°. In this manner, in protective cover 40A of the present embodiment, by adjusting the bending angle from second-stage bent rear portion 44 to the above-mentioned angle, it is possible to maintain fastening by spring force in the width direction of main surface portion 41 (corresponding to Y direction in FIG. 4) so ​​that protective cover 40A does not easily come off rear plate 11c.

[0042] In addition, the bent portions (third-stage bent portions 45A and 45B) bent outward from the second-stage bent back portions 44A and 44B facing the main surface portion 41 preferably have notch portions 46A and 46B for hooking onto at least a part of the sealer mechanism 11 (back plate 11c in this example) as shown in Figures 4 to 6. This prevents the protective cover 40A from coming off the sealer mechanism 11 even if a force in the +X direction is generated on the protective cover 40A for some reason after the protective cover 40A is attached to the sealer mechanism 11 as shown in Figure 6.

[0043] In this case, it is preferable that the notch portions 46 are provided in the third-stage bent portions 45A and 45B so as to be parallel to the first-stage bent side portions 42A and 42B as shown in Fig. 6. In this example, the third-stage bent portions 45A and 45B are provided with single notch portions 46A and 46B, respectively, but, for example, a plurality of notch portions 46 may be provided in the third-stage bent portion 45A.

[0044] When attaching the protective cover 40A to the sealer mechanism 11, as shown in Figure 6, the first-stage folded side portions 42A and 42B, which are both ends of the main surface portion 41, can be opened (the main surface portion 41 and the first-stage folded side portion 42 function as metal leaf springs), and the protective cover 40A can be attached to the outer surface of the sealer mechanism 11 so that the main surface portion 41 covers the front panel 11b of the sealer mechanism 11.

[0045] Thereafter, the first-stage folded side portions 42A and 42B are released from the open state, and as shown in FIG. 7, the elastic restoring action of the leaf spring brings the first-stage folded side portions 42A and 42B into close proximity with the sides of the sealing mechanism 11 (the sides of the crimped portion 11a, front panel 11b and rear panel 11c), thereby completing the installation of the protective cover 40A.

[0046] At this time, as can be understood from Figures 2 and 7, even if a force in the +X direction is generated on the protective cover 40A after the protective cover 40A is attached, the attachment of the protective cover 40A to the sealer mechanism 11 is maintained by the action of the notch portion 46 described above.

[0047] Furthermore, even if a force in the negative Z direction is applied to protective cover 40A after protective cover 40A is attached, as shown in Figure 7(b), the above-mentioned bending portion (in this example, third bending portions 45A and 45B) interferes with a part of sealer mechanism 11 (in this example, back panel 11c), thereby maintaining attachment of protective cover 40A to sealer mechanism 11 (preventing it from falling off).

[0048] Furthermore, in the case of protective cover 40A of this embodiment, if an external force is applied to protective cover 40A in the Z direction for some reason, as shown in FIG. 2, the protrusion of sealer mechanism 12 (more specifically, the bolt portion for fixing sealer mechanism 12 (two bolt portions are provided in FIG. 2)) and the upper edge of main surface portion 41 of protective cover 40A may interfere with each other to prevent the cover from coming off upward. On the other hand, as described above, the lower edge of third-stage bent portion 45 of protective cover 40A may interfere with the back panel 11C to prevent the cover from coming off downward.

[0049] In this way, the protective cover 40A of this embodiment has multiple folding portions with the functions described above, and therefore can be attached to existing binding devices that do not originally have a protective cover without making any new modifications or requiring any installation tools, and can be said to have extremely high versatility and convenience. Furthermore, the protective cover 40A of this embodiment is provided with a plurality of bent portions having the above-mentioned functions, thereby realizing easy attachment and preventing the protective cover 40A from falling off the binding mechanism 10 (sealer mechanism 11 in this example). Furthermore, the protective cover 40A of this embodiment is formed from a single metal plate with the above-mentioned bent portions that can exhibit a leaf spring function without having welded portions, so that the manufacturing cost can be reduced while realizing the above-mentioned highly versatile attachment.

[0050] [Second embodiment] <Steel binding device 100B> Next, a steel material binding device 100B according to a second preferred embodiment of the binding device of the present disclosure will be described with reference to Figures 8 to 13. In the steel material binding device 100A of the first embodiment described above, the sealer mechanism 11 and the tightener mechanism 13 are integrated, but the steel material binding device of this embodiment is not equipped with the sealer mechanism 11 and is a binding device with a tightener function, which is the main difference. Therefore, in the following, the same reference numbers are used for members and configurations having the same functions as those of the first embodiment described above, and their explanations will be omitted as appropriate.

[0051] As can be seen from Figs. 8 to 10, the steel material binding device 100B is configured to include at least a binding mechanism 10, a drive mechanism 20, a main body 30, and a protective cover 40B. Of these, the binding mechanism 10 of this embodiment is composed of a bearing holder 16 that supports the binding strap described above, a feed wheel 17 that clamps the binding strap between the bearing holder 16 and the binding strap to wind (or tighten) the binding strap, and a start lever 18 that rotates the feed wheel 17 via a drive mechanism 20 described later.

[0052] As shown in Figure 8, the drive mechanism 20 includes a main shaft 21 to which the feed wheel 17 is attached, and a shaft drive motor 22 that rotates and drives the main shaft 21 via a drive source (such as a well-known commercial power source) not shown.

[0053] Of these, the shaft drive motor 22 is configured to have the function of receiving a driving force from the above-mentioned drive source and using the driving force to rotate the above-mentioned feed wheel 17. When the above-mentioned drive source is configured as an air compressor that generates compressed air, the shaft drive motor 22 is preferably a known gear mechanism that can be driven by the compressed air.

[0054] The main body 30 is configured to have a function of mounting the above-mentioned drive mechanism 20. More specifically, the main body 30 of this embodiment is configured to include a hanger 31 that rotatably suspends and supports the main shaft 21, and a hanger shaft 32 that supports the bering holder 16 and the hanger 31.

[0055] Among these, the hanger 31 has an outer surface (for example, the surface opposite to the surface facing the feed wheel 17 in FIG. 8) provided with a recess 31a in which a part (such as a tip portion) of a bent portion of a protective cover 40B described later is received and locked. This allows the protective cover 40B to be stably attached to the main body 30, making it possible to prevent the above-mentioned foreign matter from entering the feed wheel 17, as shown in FIG. 9, for example.

[0056] Protective cover 40B is attached to the periphery of feed wheel 17 so as to cover at least a portion of feed wheel 17. More specifically, protective cover 40B is stably attached to main body 30 by a bent portion (fourth bent portion 47d in this example) of protective cover 40B being caught in recess 31a of hanger 31.

[0057] <Detailed Structure and Mounting Mode of Protective Cover 40B> Next, the detailed structure and mounting manner of the protective cover 40B in this embodiment will be described with reference to Figs. 11 and 12, one of the features of protective cover 40B is that it is made of a single metal plate and does not have any welded parts. As in the first embodiment described above, protective cover 40B of this embodiment can be manufactured by punching a base metal plate having an outer shape that will ultimately have the three-dimensional shape shown in Fig. 10 etc. from a rectangular metal plate by press working or the like, and then curving or bending the peripheral parts (these are collectively referred to as "folding").

[0058] More specifically, the protective cover 40B has a main surface portion 41 capable of covering the bundling processing portion (the feed wheel in this example) and a plurality of bent portions located on the periphery of the main surface portion 41. That is, the protective cover 40B is configured to have a first curved portion 47a extending from the periphery of the main surface portion 41 and bent into a curled shape. Furthermore, a second bent portion 47b is further formed on the end portion of the first curved portion 47a opposite to the main surface portion 41. The main surface portion 41 may have at least a partially curved portion as shown in FIG. 11, or may be configured as a flat plate.

[0059] 13, the first curved portion 47a is configured to have a function of engaging with the hanger shaft 32 when the protective cover 40B is attached to the main body portion 30. In other words, the first curved portion 47a curved in a curl shape is caught on and engaged with the hanger shaft 32, so that the protective cover 40B is stably attached to the main body portion 30.

[0060] In this embodiment, since the tip portion of the first curved portion 47a has the second bent portion 47b, when removing the protective cover 40B from the main body portion 30 for maintenance, for example, the worker can easily remove the protective cover by pinching the second bent portion 47b. Note that the second bent portion 47bh is not essential for the protective cover 40B of this embodiment and may be omitted as appropriate.

[0061] As shown in the figure, the first curved portion 47a can be formed by curving a desired portion of the base metal plate with reference to the boundary with the main surface portion 41. Therefore, although the first curved portion 47a does not go as far as bending, it can be formed by bending the base metal plate in one step, and therefore can be evaluated as being substantially equivalent to the above-mentioned primary bent portion 1stBD. Therefore, from the standpoint of the function of maintaining attachment to the main body, the curved portions and bent portions of protective cover 40 have a common function, and in this sense, in this disclosure, they are regarded as having equivalent structures.

[0062] 12, the protective cover 40B is configured to have a third bent portion 47c and a sixth bent portion 48, each of which is formed by bending a portion of the periphery of the main surface portion 41. These third bent portion 47c and sixth bent portion 48 can be called the above-mentioned primary bent portion 1stBD, because they can be formed by bending the base metal plate in one step. These third bent portion 47c and sixth bent portion 48 cover at least a portion of the outer surface of the feed wheel 17, and thus can be said to suppress the intrusion of foreign matter into the feed wheel 17.

[0063] The protective cover 40B is configured to have a fourth bent portion 47d1 and a fifth bent portion 47d2 formed by bending a part of the periphery of the main surface portion 41 so that a part of the periphery can be engaged with the recess 31a of the hanger 31 when the protective cover 40B is attached to the main body portion 30. More specifically, the fourth bent portion 47d1 can be formed by bending a part of the periphery of the main surface portion 41 in only one step. The fifth bent portion 47d2 can be formed to have an overall U-shape by further bending the tip portion of the bent fourth bent portion 47d1.

[0064] 13, when the protective cover 40B is attached to the main body 30, the first curved portion 47a is hooked onto the hanger shaft 32, and the fourth bent portion 47d is locked in the recess 31a of the hanger 31. This prevents the protective cover 40B from easily coming off, and enables the feed wheel 17 to be stably protected from the foreign matter.

[0065] As can be seen from the figure, a seventh bent portion 49a and an eighth bent portion 49b are provided on the lower edge of the main surface portion 41 of the protective cover 40B. Of these, the seventh bent portion 49a is formed by extending from the lower peripheral edge of the main surface portion 41 and bending it in a curled shape. On the other hand, the eighth bent portion 49b is formed by further bending a lateral end of the seventh bent portion 49a.

[0066] 13, this seventh bent portion 49a is configured to have the function of protecting the underside of feed wheel 17 when protective cover 40B is attached to main body portion 30. In other words, it can be said that the curled seventh bent portion 49a covers feed wheel 17 along its outer shape, thereby preventing foreign matter from entering from the bottom side of feed wheel 17.

[0067] The second bent portion 47b, the fifth bent portion 47d2 and the eighth bent portion 49b can be formed from the base metal plate in a total of two stages of bending, and therefore can also be called secondary bent portions 2ndBD.

[0068] In addition, there are no particular limitations on the bending angle and degree of curvature at each of the above-mentioned bending portions as long as the above-mentioned functions are respectively exhibited, and they may be set in various ways depending on the mounting method and the external shapes of other parts such as the bearing holder 16.

[0069] The above-described embodiment is a preferred example of the present disclosure, and new structures and controls may be realized by appropriately combining the elements of the embodiments without departing from the spirit of the present disclosure.

[0070] The protective cover of the present disclosure can be realized by combining, for example, the following extracted features in accordance with the gist of the present disclosure described above, which prevents the above-mentioned foreign objects (including the operator's fingers, etc.) from entering the drive parts of the binding mechanism and the sealer mechanism. (α) Made of a single metal plate, it has no welds and has multiple bent parts; (β) The bent portion is configured to be attachable to at least a portion of the periphery of a main body of a portable (handy) type strapping device (e.g., a strapping mechanism or a sealer mechanism) via the leaf spring action of the bent portion; (γ) A multi-stage bent portion is formed by further bending a portion of the bent portion, and a portion preventing the binding device from coming off from the main body is formed via this multi-stage bent portion.

[0071] It is clear that a person with ordinary knowledge in the technical field to which the present disclosure pertains can think of various modified or altered examples within the scope of the technical ideas described in the claims, and it is understood that these also naturally fall within the technical scope of the present disclosure. [Explanation of symbols]

[0072] 10 Binding mechanism 20 Drive mechanism 30 Main body 40 Protective cover

Claims

1. a binding mechanism that comes into contact with the binding strap wrapped around the object to be bound and performs a binding process on the binding strap; a protective cover attached to cover at least a portion of the periphery of the binding mechanism, the protective cover being made of a metal sheet having no welded portions and a bent portion; The binding mechanism includes: a sealer mechanism that seals a sealant attached to the tightened binding strap; and a feed wheel that tightens the binding strap downstream of the sealer mechanism, The portable binding device is characterized in that the protective cover is attached so as to cover the outer side surface of the sealer mechanism via a leaf spring that constitutes the bent portion.

2. 2. The portable strapping device of claim 1, wherein the bent portion has a notch for hooking onto at least a portion of the sealer mechanism.

3. A binding mechanism that contacts a binding strap wrapped around an object to be bound and performs a binding process for the binding strap; a protective cover attached to cover at least a portion of the periphery of the binding mechanism, the protective cover being made of a metal sheet having no welded portions and a bent portion; The binding mechanism includes: A bearing holder for supporting the binding strap; a feed wheel that clamps the binding strap between the bering holder and the binding strap to tighten the binding strap; The portable binding device, wherein the protective cover is attached to a periphery of the feed wheel so as to cover at least a portion of the feed wheel.

4. a main body portion on which a drive mechanism is mounted, the drive mechanism including a main shaft to which the feed wheel is attached and a shaft drive motor that drives and rotates the main shaft; The main body portion is a hanger that rotatably suspends and supports the main shaft; a hanger shaft supporting the bearing holder and the hanger; The protective cover is attached to the main body by the folded portion of the protective cover being hooked into the recess of the hanger.

4. The portable binding device of claim 3.

5. The drive mechanism includes an air motor or an air cylinder that uses compressed air to bind the binding straps.

5. The portable binding device of claim 4.

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