Joint, fire blaster with joint and fire blaster with multi-functional joint

Abstract

To provide a joint for multi-functional fire blaster which does not require labor, can be assembled / stored easily in a short time, is not bulky, and whose plurality of multi-functions can be normally used, and a fire blaster with the multi-functional joint adopting the joint.SOLUTION: A joint 3 includes a pair of through grooves of a fire blaster 2 which are provided with a hollow rod for blowing air in from one end side and blowing it out to the other end side and a grip fixed to the one end side of the rod for gripping and are for coupling a member that can be fixed to the other end side of the rod and can be freely removably coupled by using a spring force. The joint 3 is provided with a joint body, a cylinder part in which the rod is insertible, and a blow-out port blowing out the air from the rod. Moreover, the pair of through grooves are formed at a symmetrical position around an axis line of the rod and are displaced back and forth in an axial direction of the rod.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a joint that gives a fire-starter used when starting a fire outdoors multifunctionality, a fire-starter with a joint provided at the tip of the fire-starter, and a fire-starter with a multifunctional joint to which a member detachably fitted to the joint is fitted.

Background Art

[0002] In recent years, as enjoying barbecues and camping with family, friends, etc. in the great outdoors is becoming established as one of the hobbies, the equipment loaded in the luggage compartments of RVs and SUVs is also increasing, so there is a demand for equipment that can be compactly stored and has multiple functions.

[0003] As a solution to this problem, a fire-starter having a fire-scraping function and excellent storage properties is known (see, for example, Patent Document 1). Also, a fire-starter that can also be used as a barbecue fork is known (see, for example, Non-Patent Document 1).

[0004] The fire-starter described in Patent Document 1 is composed of a plurality of cylindrical bar members, a plurality of joints, and a blowing port component. A male thread is formed on the outer peripheral surface of the cylindrical bar member, and a female thread is formed on the inner peripheral surface of the joint. By screwing these together, it is used as a fire-starter. Also, the joint near the blowing outlet has a connection portion with a female thread formed on the side surface, and by detachably connecting a fire-scraping member with a male thread formed on this connection portion by screwing, it can also be used as a fire-scraper.

[0005] The blowtorch described in Non-Patent Document 1 is composed of a blowtorch body and a fork part. The blowtorch body is configured to be telescopically extendable by connecting multiple stages of hollow metal cylinders with different diameters along the blowing-in part to the blowing-out port. It is equipped with a wooden grip for holding at the blowing-in part, and a female thread is formed on the inner peripheral surface of the blowing-out port, and it can be used as a blowtorch alone. The fork part is configured in a bifurcated shape by fixing the central bottom of a U-shaped metal wire of the same thickness to one end of a straight metal wire by welding or the like, and a male thread is formed on the outer peripheral surface of the other end of the straight metal wire. By screwing the male thread of the fork part into the female thread of the blowing-out port of the blowtorch body, it can be used as a barbecue fork.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Non-Patent Documents

[0007]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] By the way, since the blowtorch described in Patent Document 1 requires screwing together a plurality of cylindrical bars and joints, it takes time and effort to assemble and disassemble, and when storing, it is necessary to bundle the plurality of cylindrical bars and store them in a bag or the like together with the joints, so it takes up space and there is also a risk of losing some members.

[0009] On the other hand, the blowtorch described in Non-Patent Document 1 has a problem that once it is used as a barbecue fork to roast the food stabbed on the fork part by screwing the fork part to the outlet of the blowtorch body, both the fork part and the blowtorch body become hot, so there is a risk of getting burned if trying to remove it, and it can no longer be used as a blowtorch.

[0010] The present invention has been made in view of such circumstances, and aims to provide a joint for a multi-functional blowtorch that can be assembled and stored in a short time without much effort, does not take up space, and can always use a plurality of functions in combination, and a multi-functional blowtorch with such a joint.

Means for Solving the Problems

[0011] The joint according to claim 1 is a joint for a blowtorch comprising a hollow rod that blows air from one end side and blows it out from the other end side, and a grip fixed to the one end side of the rod for gripping, and is a joint provided with a pair of through grooves for fitting a member that can be fixed to the other end side of the rod and can be detachably fitted using the force of a spring. The joint comprises a joint body, a cylindrical portion into which the rod can be inserted, and a blowout port through which air from the rod blows out. Further, the pair of through grooves are formed at symmetric positions about the axis of the rod and are configured to be offset in the front-rear direction in the axial direction of the rod.

[0012] The blowtorch with a joint according to claim 2 includes a blowtorch having a grip fixed to one end side of the hollow rod that blows air in from one end side and blows it out to the other end side, and a joint according to claim 1 fixed to the other end side of the rod of the blowtorch. Therefore, a member that can be detachably fitted using the force of a spring can be fitted to the joint, and a blowtorch that can combine the functions of the member to be fitted can be provided.

[0013] The multi-functional blowtorch with a joint according to claim 3 includes the blowtorch with a joint according to claim 2 and a member detachably fitted using the force of a spring in the pair of through grooves of the joint. Therefore, a blowtorch that can combine the functions of the fitted member in addition to the function of the blowtorch can be provided.

[0014] The multi-functional blowtorch with a joint according to claim 4, wherein the member is a spring fork including a spring part having the function of a torsion coil spring, a pair of handle parts connected to the spring, a pair of fitting parts connected to the handle parts and fitted to the joint, and a piercing part connected to the fitting parts and having the function of piercing an object. Therefore, a blowtorch that can combine the function of a barbecue fork in addition to the function of the blowtorch can be provided.

[0015] The multi-functional blowtorch with a joint according to claim 5, wherein the piercing part of the spring fork passes through a horizontal plane through which the axis of the rod passes and is arranged parallel to the axis, deviates from the horizontal plane through which the axis of the rod passes and is arranged parallel to the axis, or is arranged at a predetermined angle with respect to the axis of the rod. Therefore, a blowtorch that can more effectively combine the function of a barbecue fork in addition to the function of the blowtorch can be provided.

[0016] The blowtorch with a multi-functional joint according to claim 6, wherein the member comprises a spring portion having the function of a torsion coil spring, a pair of handle portions connected to the spring, a pair of fitting portions connected to the handle portions and fitted to the joint, and a scraping portion connected to the joint joint portion and having the function of scraping ash and burnt shells, is a spring scraper, so that it is possible to provide a blowtorch that can use the functions of a blowtorch and a scraper in addition to the function of the blowtorch.

Effects of the Invention

[0017] According to the present invention, a blowtorch comprising a hollow rod through which air is blown from one end side to the other end side, and a grip fixed to the one end side of the rod for gripping, is provided with a joint having a pair of through grooves for fitting a member that can be fixed to the other end side of the rod and can be detachably fitted using the force of a spring. The joint comprises a joint body, a cylindrical portion into which the rod can be inserted, and a blowout port through which air from the rod is blown out. Further, the pair of through grooves are formed at symmetric positions about the axis of the rod and are configured to be offset in the front-rear direction in the axial direction of the rod. By inserting and fixing the joint to the other end side of the blowtorch, it becomes possible to fit a member that can be detachably fitted using the force of a spring to the joint, and it is possible to provide a blowtorch that can use the functions of the member to be fitted.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Mode for Carrying Out the Invention

[0019] Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1 to 5 are diagrams illustrating embodiments of the present invention. In these diagrams, parts denoted by the same reference numerals represent the same objects, and the basic configurations and operations are assumed to be the same.

Example

[0020] Example 1 will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view of a blowtorch with a multifunctional joint according to Example 1 of the present invention. FIG. 1(A) is a perspective view of the blowtorch with a multifunctional joint according to Example 1 of the present invention when stored. FIG. 1(B) is a perspective view of the blowtorch with a multifunctional joint according to Example 1 of the present invention during extension. FIG. 1(C) is a perspective view of the blowtorch with a multifunctional joint according to Example 1 of the present invention when extended. The blowtorch with a multifunctional joint 1 shown in FIG. 1 is composed of a blowtorch 2, a joint 3, and a spring fork 4.

[0021] The blowtorch 2 is composed of a plurality of hollow rods with different diameters, and is made telescopic by forming a structure in multiple stages in which one of the two adjacent rods is slidably inserted into the hollow of the other rod. The blowtorch 2 can be used as a blowtorch in any state of the stored state (FIG. 1(A)), the state during extension (FIG. 1(B)), and the extended state (FIG. 1(C)).

[0022] In this example, an example in which the rod has a four-stage configuration is shown, and an example in which the total length of the rod is 225 mm when stored and 745.5 mm when extended is shown, but the present invention is not limited thereto, and it may have a one-stage configuration or a more multi-stage configuration.

[0023] Figure 2 is a one-sided cross-sectional perspective view of the blowtorch with a multi-functional joint according to Embodiment 1 of the present invention during extension. The blowtorch 2 is composed of a grip 21 and a rod 22.

[0024] The grip 21 may be integrally formed, but in this embodiment, it is composed of three parts: a grip top 211, a grip middle 212, and a grip end 213. The grip top 211 and the grip end 213 have the same shape and are fixed to the rod 22. However, the grip middle 212 is not fixed and can rotate freely around the rod 22, so gaps 214 are provided in front of and behind the grip middle 212. By adopting this structure, when the grip end 213 is rotated in the circumferential direction while the grip middle 212 is being held, the spring fork 4 fitted to the tip of the rod 22 also rotates in the same direction. Therefore, it is possible to roast the food stabbed on the spring fork 4 while rotating it over the fire.

[0025] Also, by passing a strap through the gap 214 between the grip middle 212 and the grip end 213, the blowtorch 1 with a multi-functional joint can be hooked onto an object.

[0026] The rod 22 is composed of a first rod 221, a second rod 222, a third rod 223, and a fourth rod 224. Connecting parts 225 are provided at the ends of each rod, and the structure is such that they are slidable and cannot come off, so it can be extended and contracted. The specific structure of the connecting part 225 is not particularly limited, and a known structure can be adopted. For example, a known structure used in a fishing rod or a rod antenna can be used. For example, a structure in which a pair of semi-cylindrical sliding springs are inserted between the sliding surfaces of two adjacent rods, that is, between the inner peripheral surface of the large-diameter rod and the outer peripheral surface of the small-diameter rod (see, for example, Patent Document 2) can be mentioned.

[0027] When used as a blowtorch, by blowing air into the inside of the first rod 221 from the end on the grip end 213 side of the grip 21, air passes through the inside of the second rod 222, the third rod 223, and the fourth rod 224 as flow paths, and air is blown out from the tip of the joint 3.

[0028] In the case of this embodiment, the grip 21 is made of, for example, wood, and is manufactured by a processing method of bonding a thin sheet-like veneer to a curved surface while humidifying it, or by a cutting processing method such as boring or lathe processing of a wood block. For example, the outer diameter is about 15 mmφ to 30 mmφ, the total length is about 100 mm to 200 mm, the lengths of the grip top 211 and the grip end 213 are about 10 mm to 20 mm, the length of the grip middle 212 is 80 to 160 mm, and more preferably, the outer diameter is 20 mmφ, the lengths of the grip top 211 and the grip end 213 are 15 mm, and the length of the grip middle 212 is about 120 mm. Also, the inner diameter only needs to be large enough to be inserted into the outer diameter of the first rod 221 when fixing like the grip top 211 and the grip end 213, and it is better to be slightly larger when making it rotatable like the grip middle 212. Since it only needs to be able to insulate and grip the heat from the rod 22, it is not limited to wood and may be made of various resins.

[0029] Also, in the case of this embodiment, the rod 22 uses a commercially available hollow stainless steel straight pipe with a wall thickness of 0.2 to 0.3 mm. By folding the tip of each rod and processing a groove (stopper) or flare at the rear end so that the large-diameter rod does not come out of the small-diameter rod, and inserting a sliding spring made of phosphor bronze with a plate thickness of 0.1 mm to 0.2 mm (not shown) between the rods, it forms a multi-stage structure. The first rod 221 is, for example, an outer diameter of 9 mmφ × length of 195 mm, the second rod 222 is, for example, an outer diameter of 8 mmφ × length of 194 mm, the third rod 223 is, for example, an outer diameter of 7 mmφ × length of 190 mm, the fourth rod 224 is, for example, an outer diameter of 6 mmφ × length of 211.5 mm, and by setting the length of the connecting part 225 to about 15 mm, the total length of the rod 22 during storage and extension as described above can be obtained. Note that a tapered pipe may be used for the pipe used for the rod 22, and the material may also be made of aluminum, carbon fiber, etc.

[0030] Figure 3 is a drawing related to the joint according to Embodiment 1 of the present invention. Figure 3(A) is an enlarged one-sided cross-sectional perspective view of the periphery of the joint according to Embodiment 1 of the present invention. Figure 3(B) is an enlarged one-sided cross-sectional perspective view of the joint according to Embodiment 1 of the present invention. Figure 3(C) is an enlarged one-sided cross-sectional view of the joint according to Embodiment 1 of the present invention. Figure 3(D) is an enlarged perspective view of the joint according to Embodiment 1 of the present invention.

[0031] As shown in Figure 3(A), the fourth rod 224 is inserted into the joint 3, and the joint 3 is arranged along the axis 91 of the rod 22, and the cross-section is cut by a horizontal plane 92 passing through the axis 91 and a vertical plane (not shown).

[0032] As shown in Figures 3(B) and 3(C), the joint 3 is composed of a joint body 31, a cylindrical portion 32, a rod tip contact portion 33, a throttle portion 34, a blowout port 35, a through groove 36, and a fixing screw portion 37. As shown in Figure 3(C), the fourth rod 224 is inserted into the cylindrical portion 32 of the joint 3, and with its tip in contact with the rod tip contact portion 33, the joint 3 is fixed to the fourth rod 224 by screwing a male screw externally onto the fixing screw portion 37 where a female screw is formed.

[0033] The air that has passed through the flow path inside the fourth rod 224 is pressurized once immediately before the throttle portion 34 and depressurized suddenly immediately after passing through, so that the air accelerated from the blowout port 35 blows out vigorously in a narrow range and can be efficiently sent to the target location.

[0034] As shown in FIGS. 3(C) and 3(D), the width w' of the through groove 36 is the same as or slightly wider than the thickness w of the wire of the spring fork 4 described later. Also, the pair of through grooves 36 are arranged symmetrically about the axis 91 and are formed with a shift of δ in the front-rear direction in the axial direction. The pair of through grooves 36 are for fitting the spring fork 4 described later, and the amount of shift is based on the thickness w of the wire of the spring fork 4. This will be described in detail in the description of the spring fork 4.

[0035] In the case of this embodiment, the joint 3 is made of brass and manufactured by a cutting process, and is preferably 20 mm to 25 mm in length, 10 mmφ to 15 mmφ in outer diameter, 6 mmφ to 6.1 mmφ in inner diameter of the cylindrical portion 32, 3 mmφ to 4 mmφ in inner diameter of the constriction portion 34, more preferably 3.6 mmφ, and about 9 mmφ in inner diameter of the outlet 35. When the thickness w of the wire of the spring fork 4 is 2 mm, the width w' of the through groove 36 is 2 mm to 2.1 mm, the amount of shift δ in the front-rear direction of the through groove 36 is about 2 mm to 2.4 mm, and the fixing screw portion 37 is about M3×0.5.

[0036] In FIG. 3, the outer diameter of the outlet 35 is drawn slightly larger than the outer diameter of the joint body 31, and the outer diameter of the rear end portion of the joint body 31 is drawn slightly smaller than the outer diameter of the joint body 31, but they may all have the same outer diameter without any problem. Also, the fixing screw portion 37 may be fixed by inserting a rivet from the outside into a hole in which a female screw is not formed and then caulking.

[0037] FIG. 4 is an enlarged view of the spring fork according to Embodiment 1 of the present invention. FIG. 4(A) is an enlarged one-sided cross-sectional perspective view of the periphery of the spring fork according to Embodiment 1 of the present invention. FIG. 4(B) is an enlarged perspective view of the spring fork according to Embodiment 1 of the present invention. FIG. 4(C) is an enlarged plan view of the spring fork according to Embodiment 1 of the present invention. FIG. 4(D) is an enlarged front view of the spring fork according to Embodiment 1 of the present invention.

[0038] As shown in Fig. 4(A), the spring fork 4 is fitted into the through groove 36 of the joint 3, arranged along the axis 91 of the rod 22, and the cross-section is cut by a horizontal plane 92 passing through the axis 91 and a vertical plane (not shown).

[0039] As shown in Fig. 4(B), the spring fork 4 is composed of a spring part 41, a handle part 42, a fitting part 43, and a piercing part 44.

[0040] As shown in Fig. 4(C), the spring part 41 is composed of a single torsion coil spring. A pair of handle parts 42 are connected to both ends of the spring part 41 respectively. Further, a pair of fitting parts 43 are connected to the respective ends of the handle parts 42, and finally, a pair of piercing parts 44 are connected to the respective ends of the fitting parts 43. Since the pair of fitting parts 43 are bent in an arc shape of about 1 / 2 turn on both the left and right and intersect near the axis 91, the starting positions where they are connected to the left and right piercing parts 44 are shifted by δ in the direction of the axis 91. The shift amount δ is the sum of the thickness w of the wire rod and a slight gap α between the left and right fitting parts 43. Also, the tip of the piercing part 44 spreads slightly outward at an angle φ.

[0041] And as shown in Fig. 4(D), in this embodiment, the piercing part 44 is configured to deviate from the horizontal plane 92 through which the axis 91 of the rod 22 passes and be arranged parallel along the axis 91. With this configuration, the air blown out from the outlet 35 of the joint 3 can reach the target location without being blocked by the food even when the food is pierced by the pair of piercing parts 44.

[0042] In the case of this embodiment, it is manufactured by bending a stainless steel wire rod with a thickness w of 2 mmφ using an NC multi-forming machine or the like, and has an overall length of 120 mm to 130 mm, a maximum width of 40 mm to 50 mm, and a height of 19 mm to 23 mm. More preferably, the overall length is about 124 mm, the maximum width is about 45 mm, and the height is about 20 mm. The bending of the spring portion 41 and the fitting portion 43 is about 15 mmφ in inner diameter, and is about 1 turn and 1 / 2 turn respectively. The length of the handle portion 42 is 45 mm to 50 mm, more preferably about 48 mm, and the length of the piercing portion 44 is 70 mm to 80 mm, more preferably about 75 mm. About 9 mm at the tip of the pair of piercing portions 44 spreads outward with an inclination of 15° from the axis 91 to one side.

[0043] Next, the usage method of Example 1 configured as described above will be described with reference to FIGS. 1 and 2. When storing as shown in FIG. 1(A), the rod 22 (FIG. 2) is in the shortest state. In the figure, the fitting portion 43 of the spring fork 4 is fitted in the through groove 36 of the joint 3, but by pulling out the spring fork 4 once and passing the piercing portion 44 side through the joint 3 in the order of the fitting portion 43 and the spring portion 41 toward the blowtorch 2, it can be stored and stored in a short time without taking up much space, safely, and without much effort.

[0044] When using it as the blowtorch 2, the length of the rod 22 of the blowtorch 2 may be adjusted as appropriate as shown in FIGS. 1(A) to 1(C). The length can be adjusted instantaneously. The spring fork 4 may be removed, or it may be in a state of being fitted to the joint 3 as shown in the figure. Then, when bringing the mouth close to the end of the rod 22 of the grip end 213 in FIG. 2 and blowing air, the air finally blows out from the outlet 35 of the joint 3 using the cavities inside the first rod 221 to the fourth rod 224 as flow paths.

[0045] When used as a barbecue fork, the fitting portion 43 of the spring fork 4 can be firmly fixed by the force of the spring portion 41 by fitting it into the through groove 36 of the joint 3, so that it is possible to pierce the food with the piercing portion 44. The spring fork 4 can be instantaneously detached from and attached to the joint 3.

[0046] Also, when the grip middle 212 is held with one hand and the grip end 213 is rotated in the circumferential direction with the other hand, the entire rod 22 rotates. Therefore, the food pierced by the piercing portion 44 also rotates, and the food can be roasted evenly.

[0047] Further, if the food is small like marshmallows, small fish, or long and thin like a sausage, since the piercing portion 44 is offset from the axis 91 of the rod 22, it can be used as a blowtorch 2 while piercing the food as it is.

[0048] Thus, according to the first embodiment of the present invention, by adopting the above configuration, storage and assembly can be performed in a short time without taking much time and without being bulky, and a blowtorch with a multifunctional joint that can combine the function as a blowtorch and the function as a barbecue fork can be provided. <Modification>

[0049] Next, a modification of the blowtorch 1 with a multifunctional joint according to the present invention will be described with reference to FIG. 5. FIG. 5(A) is a front view of a blowtorch with a multifunctional joint equipped with the members according to the first embodiment of the present invention. FIG. 5(B) is a front view of a blowtorch with a multifunctional joint equipped with the members according to the second embodiment of the present invention. FIG. 5(C) is a front view of a blowtorch with a multifunctional joint equipped with the members according to the third embodiment of the present invention. FIG. 5(D) is a front view of a blowtorch with a multifunctional joint equipped with the members according to the fourth embodiment of the present invention. Note that since the basic configuration and functions of the blowtorch with a multifunctional joint in the modification example are the same as those in the first embodiment, the description thereof is omitted. Further, Fig. 5(A) shows again the blowtorch 1 with a multifunctional joint equipped with the spring fork 4 according to the first embodiment as a member to be fitted to the joint 3 for comparison with Figs. 5(B) to 5(D).

[0050] Fig. 5(B) shows the blowtorch 1 with a multifunctional joint equipped with the spring fork 4 in which the piercing portion 44 passes through a horizontal plane 92 passing through the axis 91 of the rod 22 and is arranged in parallel along the axis 91 as a member to be fitted to the through groove 36 of the joint 3 according to the second embodiment. The spring fork 4 of the second embodiment differs in configuration from the spring fork 4 of the first embodiment in that the arrangement of the piercing portion 44 is different. By adopting the above configuration, when piercing foodstuffs such as small fish and sausages across the pair of piercing portions 44, the air blown out from the outlet 35 of the joint 3 is blocked. However, when piercing small foodstuffs such as marshmallows on each of the piercing portions 44, the air can be blown out through there, so that the function as a blowtorch can be used in combination.

[0051] Fig. 5(C) shows the blowtorch 1 with a multifunctional joint equipped with the spring fork 4 in which the piercing portion 44 is deviated from the axis 91 of the rod 22 and is arranged at a predetermined angle θ with respect to the axis 91 as a member to be fitted to the through groove 36 of the joint 3 according to the third embodiment. The spring fork 4 of the third embodiment differs in configuration from the spring forks 4 of the first and second embodiments in that the arrangement of the piercing portion 44 is different. By adopting the above configuration, the possibility of blocking the air blown out from the outlet 35 of the joint 3 is further reduced, so that the function of the barbecue fork can be used more effectively in addition to the function of the blowtorch.

[0052] Fig. 5(D) shows a blowtorch 1 with a multi-functional joint equipped with a spring fire scraper 5 as a member to be fitted into the through groove 36 of the joint 3 according to Example 4. The member of Example 4 is different in configuration from the spring fork 4 of Examples 1 to 3 in that it is a spring fire scraper 5. Similar to the spring fork 4 of Example 1, the spring fire scraper 5 of Example 4 is composed of a spring portion 41, a handle portion 42, a fitting portion 43, and a fire scraping portion 54. The fire scraping portion 54 is arranged at a predetermined angle ψ with respect to the axis 91. By adopting the above configuration, in addition to the function of the blowtorch, the function of scraping ash and burnt shells can be used in combination.

[0053] As described above, the form of the joint for the multi-functional blowtorch according to the embodiments of the present invention and the blowtorch with a multi-functional joint adopting the joint have been shown and described. However, the present invention is not limited thereto. A person skilled in the art can make various changes and improvements to the configuration and function of the invention according to the above embodiments or other embodiments without departing from the gist of the present invention.

[0054] For example, according to the embodiment of the present invention, an example has been described in which the inner diameters of the bending processes of the spring portion 41 and the fitting portion 43 of the spring fork 4 are the same 15 mmφ. However, only the inner diameter of the bending process of the fitting portion 43 may be further increased. As a result, the piercing portion 44 will deviate further from the horizontal plane 92, so the possibility of blocking the air blown out from the outlet 35 of the joint 3 regardless of the food being pierced is further reduced. Therefore, in addition to the function of the blowtorch, the function of the barbecue fork can be used more effectively in combination.

[0055] Also, for example, on the premise that the fire scraping portion 54 of the spring fire scraper 5 exists separately as a pair similar to the piercing portion 44 of the spring fork 4, one tip may be in a hook shape and hooked on the other to form a structure that can be fixed, and the function as a fire scraper can be exerted more firmly.

Explanation of Reference Numerals

[0056] 1 Blowtorch with Multifunctional Joint 2 Blowtorch 21 Grip 211 Grip Top 212 Grip Middle 213 Grip End 22 Rod 221 First Rod 222 Second Rod 223 Third Rod 224 Fourth Rod 225 Connecting Part 3 Joint 31 Joint Body 32 Cylindrical Part 33 Rod Tip Contact Part 34 Throttle Part 35 Outlet 36 Through Groove 37 Fixed Screw Part 4 Spring Fork 41 Spring Part 42 Handle Part 43 Fitting Part 44 Piercing Part 5 Spring Scraper 54 Scraper Part 91 Axis 92 Horizontal Plane

Claims

1. A blowtorch comprising a hollow rod through which air is blown in from one end and blown out from the other end, and a grip fixed to the one end of the rod for gripping, and being attachable to the other end of the rod, a joint having a pair of through grooves for fitting, and being detachably fitted using the force of a spring, wherein the joint comprises a joint body, a cylindrical portion into which the rod can be inserted, and an outlet through which air from the rod is blown out, and further, the pair of through grooves are formed at symmetric positions about the axis of the rod and are displaced longitudinally in the axial direction of the rod, characterized in that it is a joint.

2. A blowtorch having a grip fixed to the one end of a hollow rod through which air is blown in from one end and blown out from the other end, and the joint according to Claim 1 fixed to the other end of the rod of the blowtorch, characterized in that it is a blowtorch with a joint.

3. The blowtorch with a joint according to Claim 2, and a member detachably fitted using the force of a spring into the pair of through grooves of the joint, characterized in that it is a multi-functional blowtorch with a joint.

4. The member is a spring fork comprising a spring portion having a function of a torsion coil spring, a pair of handle portions connected to the spring, a pair of fitting portions connected to the handle portions and fitted to the joint, and a piercing portion connected to the fitting portions and having a function of piercing an object. The blowtorch with a multi-functional joint according to claim 3, characterized in that...

5. The piercing portion of the spring fork... passes through a horizontal plane through which the axis of the rod passes and is arranged parallel to the axis. deviates from the horizontal plane through which the axis of the rod passes and is arranged parallel to the axis, or is arranged at a predetermined angle with respect to the axis of the rod. The blowtorch with a multi-functional joint according to claim 4, characterized in that it is any one of the above.

6. The member... has a spring portion having a function of a torsion coil spring, a pair of handle portions connected to the spring, a pair of fitting portions connected to the handle portion and fitted to the joint, and a scraping portion connected to the joint joint portion and having a function of scraping ash and burnt shells, and is a spring scraper. The blowtorch with a multi-functional joint according to claim 3, characterized in that...

Images