Telescopic fire tongs

Abstract

To provide telescopic fire tongs that structurally eliminate unintended unlocking during use, has superior operability, and can be adjusted in length in steps.SOLUTION: Telescopic fire tongs comprises a grip part 102, a blade part 110 which is enabled to slide in a longitudinal direction of the grip part 102 to move back and forth, and also has through holes 111 formed at desired intervals in a sliding direction, and a lock mechanism which fixes positions of the grip part 102 and the blade part 110, wherein the lock mechanism is structured having the blade part 110 sandwiched between the grip part 102 and lock parts 106 fixed thereto, and a lock claw 106e formed on the lock parts 106 is fitted in the through hole 111 of the blade part 110 due to the flexibility of the lock parts 106 to make a lock.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to fire tongs, and more particularly to a technique relating to telescopic fire tongs for holding a heat source such as charcoal or firewood outdoors. [Background technology]

[0002] Various types of retractable tongs have been known in the past.

[0003] For example, in the retractable fire tongs described in Patent Document 1, the grip portion and the blade portion are configured to be slidable, and the sliding positions of both can be fixed by a screw.

[0004] Furthermore, in the retractable fire tongs described in Non-Patent Document 1, the grip and blade are configured to be slidable, and the length can be adjusted in two stages by inserting a protrusion formed on the blade into a through-hole in the grip. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Design Registration No. 1748382 [Non-patent literature]

[0006] [Non-Patent Document 1] Green Life BB Series Page https: / / www.amazon.co.jp / %E3%82%B0%E3%83%AA%E3%83%BC%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%95-GREEN-LIFE-%E4%BC%B8%E7%B8%AE%E3%82%B9%E3%83%86%E3%83%B3%E7%81%AB%E3%81%B0%E3%81%95%E3%81%BF-BB-18 / dp / B01MZICXGK / ref=sr_1_1?__mk_ja_JP=%E3%82%AB%E3%82%BF%E3%82%AB%E3%83%8A&c rid=319XZQWJ2LKVI&keywords=%E7%81%AB%E3%81%B0%E3%81%95%E3%81%BF%2B%E3 %82%B0%E3%83%AA%E3%83%BC%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%95&qid=16969 90614&sprefix=%E7%81%AB%E3%81%B0%E3%81%95%E3%81%BF%2B%E3%82%B0%E3%83%A A%E3%83%BC%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%95%2Caps%2C158&sr=8-1&th=1 Summary of the Invention [Problem to be solved by the invention]

[0007] These known fire tongs all have in common the fact that they are extendable. However, the extendable fire tongs described in Patent Document 1 require length adjustment using a screw, which inevitably takes time. Another problem is that the lengths of the pair of arms are prone to becoming misaligned.

[0008] On the other hand, the telescopic fire tongs described in Non-Patent Document 1 can be unlocked more quickly by simply pressing a protrusion exposed on the grip surface, but they can only be adjusted in two stages. If more stages were attempted, the protrusion would inevitably be located in the area that is gripped by the hand, raising the risk of the lock being unintentionally released during use. To avoid this, it is technically possible to provide an operating part such as a protrusion somewhere other than the grip surface (the surface where the hand grips and applies force when using the tongs), but this would result in poor operability during adjustment. Furthermore, because the operating area for extending the tongs is different from the operating area for retracting them, it is easy to make a mistake and it takes time to find the operating area.

[0009] The present invention has been made to solve these problems, and its objective is to provide telescopic fire tongs that are structurally designed to prevent unintentional unlocking during use, are easy to operate, and have multiple lengths that can be adjusted. [Means for solving the problem]

[0010] In order to solve the above problems, the present invention provides fire tongs for holding heat sources such as charcoal or firewood, comprising two handles configured to be able to be opened and closed, a blade section stored in the handles and slidable in the longitudinal direction of the handles to move back and forth, with through holes formed at desired intervals in the sliding direction, and a locking mechanism that fixes the positions of the handles and the blade section, wherein the locking mechanism has a structure in which the blade section is sandwiched between the handles and locking parts fixed to the handles, and the flexibility of the locking parts allows locking to be achieved by fitting the locking claws formed on the locking parts into the through holes in the blade section.

[0011] By adopting such a configuration, the length can be freely adjusted in multiple stages, and the locking mechanism works automatically, making the length adjustment process extremely simple.

[0012] Furthermore, a portion of the locking part is configured to be exposed (exposed portion) on the gripping surface of the grip portion, and by pressing the exposed portion in the gripping direction, the locking part bends and the locking claw comes out of the through hole.

[0013] By adopting such a configuration, the locking mechanism can be unlocked by an operation similar to gripping the grip portion.

[0014] The exposed portion is disposed only near the tip end of the grip portion.

[0015] By adopting this configuration, it is possible to structurally prevent the lock from being released unintentionally while using the retractable fire tongs, even though the length can be adjusted in multiple stages and the unlocking operation is easy to perform. Also, since there is only one operation point for adjusting the length, operation is very simple. [Effects of the Invention]

[0016] By applying the present invention, it is possible to structurally prevent unintentional unlocking during use, and to provide telescopic fire tongs that are easy to operate and can be adjusted in length in multiple stages. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is an overall perspective view of a pair of fire tongs according to an embodiment of the present invention, with the blades pulled out (extended) to their fullest extent; [Figure 2] This is an exploded view of fire tongs. [Figure 3] FIG. [Figure 4] FIG. 10 is a perspective view of the blade unit in a completely retracted and closed state. [Figure 5] 4A and 4B are cross-sectional views (cross-sections along the a plane of FIG. 4) showing the operation of the locking mechanism, where (a) shows the locked state and (b) shows the unlocked state. [Figure 6] FIG. 10 is a perspective view of the blade portion in a state where it is pulled out (extended) to a moderate extent. DETAILED DESCRIPTION OF THE INVENTION

[0018] Below, we will explain a retractable fire tongs 100, which is one example of an embodiment of the present invention, with reference to the accompanying drawings. Please note that in order to make the drawings easier to understand, the size and dimensions of each part are exaggerated and may not necessarily match the actual product. Furthermore, each drawing should be viewed in accordance with the direction of the symbols, and top, bottom, left, right, front, and back are expressed based on these directions.

[0019] <Configuration of telescopic fire tongs> As shown in FIG. 1, the retractable fire tongs 100 shown as an example of an embodiment of the present invention has as its main components two grip sections 102 that can be opened and closed using locking pins 109, and blade sections 110 stored inside each of the grip sections 102.

[0020] The grip portion 102 and the blade portion 110 are made by bending a metal plate, and both have a cross section (cross section in a direction perpendicular to the longitudinal direction) formed into a substantially U-shape.

[0021] Torsion springs 104 are built into the inside of the bases of the two grips 102, and the two grips 102 are always biased in the opening direction. Hook parts 103 are attached to the outside of the bases of the two grips 102 to hang the retractable tongs 100 in a desired location.

[0022] The blade portion 110 is sized to fit inside the grip portion 102, and multiple blades 112 are formed around the tip. A slide groove 113 is formed along the longitudinal direction at the center of the width of the blade portion 110. This slide groove 113 is a groove that allows the blade portion 110 to slide (with respect to the grip portion 102). Through holes 111 are formed on the outside of this slide groove 113 at a desired interval (longitudinal interval). Note that two through holes 111 function as a pair, sandwiching the slide groove 113, and function to fix the sliding position of the blade portion 110 (details will be described later). A pull-out portion 114 is provided at the tip of the blade portion 110, which can be used to hook a finger when pulling out (extending) the blade portion 110.

[0023] The blade section 110 is assembled so as to be sandwiched between the grip section 102 and the locking parts 106 fixed to the grip section 102 (see also Figure 5). That is, the blade section 110 is placed inside the grip section 102, and then attached so that the locking parts 106 sandwich the blade section 110.

[0024] As shown in FIG. 3, the locking part 106 is configured in a generally "T" shape, with a folded portion 106b formed at the base by bending the part with a small gap in the thickness direction. A pin hole 106c is formed so as to penetrate the entire folded portion 106b. On the left and right sides of the tip, there are locking claws 106e bent at 90 degrees. These locking claws 106e are capable of being inserted into the through-hole 111 of the blade portion 110. Furthermore, an exposed portion 106d is formed between the two locking claws 106e, projecting significantly in the thickness direction.

[0025] The locking part 106 is attached to the grip 102 by a locking pin 107 (with the blade portion 110 sandwiched between them). The locking pin 107 is assembled by inserting it through a pin hole 106c formed in the locking part 106. Furthermore, the grip surface 104 of the grip 102 has through holes at positions corresponding to the locking pin 107, the exposed portion 106d, and the locking claw 106e. The exposed portion 106d and the locking pin 107 are positioned by passing through a slide groove 113 formed in the blade portion 112.

[0026] <Operation and function of telescopic fire tongs> Next, a method of using the retractable fire tongs 100, which is an example of an embodiment of the present invention, will be described.

[0027] 4 shows the state in which the blade portion 110 is retracted and the grip portion 102 is closed. Note that a mechanism for maintaining this closed state may be provided, but this is not directly related to the present invention and will not be described here. In this state, if the user wishes to extend the length of the fire tongs 100 (to extend the blade portion 110), they can simply push in the exposed portion 106d exposed on the grip surface 104 of the grip portion 102.

[0028] This operation (pushing in exposed portion 106d) causes locking part 106 itself to bend, causing locking claws 106e to disengage and come out of through-holes 111 formed in blade portion 110 (see FIG. 5(b)). This allows blade portion 110 to slide longitudinally. Because through-holes 111 are provided at regular intervals (or desired intervals) on blade portion 110, if the blade portion is pulled out to a certain position, the exposed portion 106d is released from being pushed in, and the blade portion is moved back and forth slightly, the flexibility of locking part 106 itself causes claws 106e of locking part 106 to fit into through-holes 111 formed at any position, thereby locking the sliding position (locking mechanism). The same operation is used to store blade portion 110.

[0029] Furthermore, the exposed portion 106d to be operated is located near the tip of the grip surface 104 of the grip portion 102, so the user can perform the extension and retraction operation with an operation similar to the operation of gripping the grip portion 102.

[0030] As explained in the above configuration, the present invention is a fire tongs 100 for holding a heat source such as charcoal or firewood, and is equipped with two handle portions 102 configured to be able to be opened and closed, a blade portion 110 that is stored in the handle portion 102 and can slide back and forth in the longitudinal direction of the handle portion 102, and has through holes 111 formed at desired intervals in the sliding direction, and a locking mechanism that fixes the positions of the handle portion 102 and the blade portion 110, and this locking mechanism has a structure in which the blade portion 110 is sandwiched between the handle portion 102 and a locking part 106 fixed to the handle portion 102, and is configured so that the lock is achieved by the flexibility of the locking part 106, which allows the engaging claws 106e formed on the locking part 106 to fit into the through holes 111 of the blade portion 110, thereby achieving locking.

[0031] By adopting this configuration, the length can be freely adjusted in multiple stages, and the locking mechanism works automatically, making the length adjustment process extremely simple.

[0032] In addition, a portion of the locking part 106 is exposed on the gripping surface 104 of the gripping portion 102 (exposed portion 106d), and by pressing this exposed portion 106d in the gripping direction, the locking part 106 is bent and the engaging claw 106e is disengaged from the through hole 111 formed in the blade portion 110.

[0033] By adopting such a configuration, the locking mechanism can be unlocked by an operation similar to gripping the grip portion 102.

[0034] Furthermore, the exposed portion 106d is characterized in that it is disposed only near the tip end of the grip portion 102.

[0035] By adopting this configuration, even though the length can be adjusted in multiple stages and the unlocking operation is easy to perform, it is possible to structurally prevent the lock from being released unintentionally while using the telescopic fire tongs 100. In addition, since there is only one operation point for adjusting the length, the operation is very simple. [Explanation of symbols]

[0036] 100...Fire tongs 102 Grip 103 Hook parts 104 Torsion spring 106···Lock parts 106a Main body 106b... Folded part 106c···Pin hole 106d... exposed part 106e...Latching claw 107 Locking pin 109 Locking pin 110...Blade part 111...Through hole 112 blades 113···Slide groove 114...Drawer section

Claims

1. Fire tongs for holding a heat source such as charcoal or firewood, Two grips configured to be openable and closable; a blade portion that is housed in the grip portion and is slidable in the longitudinal direction of the grip portion to move forward and backward, and has through holes formed at desired intervals in the sliding direction; a locking mechanism that fixes the positions of the grip portion and the blade portion, The locking mechanism has a structure in which the blade is sandwiched between the grip and a locking part fixed to the grip, and The locking part itself is flexible, and the locking claw formed on the locking part fits into the through hole of the blade, thereby realizing locking. Fire tongs characterized by:

2. In claim 1, A part of the locking part is exposed (exposed part) on the gripping surface of the grip part, and by pressing the exposed part in the gripping direction, the locking part is bent and the locking claw is disengaged from the through hole. Fire tongs characterized by:

3. In claim 2, The exposed portion is disposed only near the tip end of the grip portion. Fire tongs characterized by:

Images