• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a sleeve (20) for receiving the blade (12) of a hand-cutting tool, comprising a wall (24) delimiting a housing (22) between a first open end for introduction and exit. blade (12) and a second end. Typically, the second end comprises a locking system (26) reversible adapted to cooperate with the blade (12) for retaining the blade (12) in the sleeve (20). The invention also relates to a hand cutting tool (10) adapted to be received in said sheath (20).
    公开号:CH711489A1
    申请号:CH01269/15
    申请日:2015-09-03
    公开日:2017-03-15
    发明作者:Tièche Denis；Simonetta Rachel
    申请人:Felco Sa；
    IPC主号:
    专利说明:

    Technical area
    The present invention relates to the field of hand cutting tools having a blade and a gripping element, such as a handle or a handle, on which is mounted the blade. In particular, in a non-limiting manner, the present invention relates to saws (such as handsaw saws, Japanese saws, window saws, etc.) but also to other cutting objects with a fitted blade, and in particular cutting instruments such as knives, cutters, razors, scalpels, scissors (single blade tool or pair of scissors forming a tool with double articulated blades), ....
    In order to limit accidents with the cutting blade and facilitate the wearing and / or transport of such cutting tools, these are often associated with a sheath as a protective sheath for the blade. To ensure reliable protection, the blade must be retained effectively in the sheath, so that it can not be separated from the sheath unexpectedly, regardless of the position of the tool.
    Furthermore, it must be possible to separate the blade from the sleeve without great effort and after each use of the cutting tool, attach the tool to the sleeve in an easy and safe way.
    State of the art
    The documents US 201 405 987, JP 2 005 131 073 and TWM 321 363 Y describe frameless blade saws and their sleeve which can attach to one another by retaining elements cooperating with each other and located on the one hand at the opening of the sleeve and on the other hand in the zone connecting the handle to the saw blade.
    [0005] US 275 092 046, US 275 297 341, US 613 836 and US 7 434 316 disclose similar locking systems for reversibly locking a knife and its blade protection case.
    These fastening systems between a sheath and a blade tool require, to clear the blade of the sheath, and often also to block the blade in the sheath, a particular handling, requiring from the user a a maneuver that requires precision and takes time. This situation is particularly inconvenient when the user has to go out and return the blade from the sheath repeatedly and frequently.
    Brief summary of the invention
    An object of the present invention is to provide a sleeve free of the limitations of known sleeves, and the associated cutting tool.
    Another object of the invention is to provide a sleeve easy to use, which requires no specific maneuver to unlock the fastening system between the tool and the sleeve when you want to clear the blade out sheath and vice versa.
    According to the invention, these objects are achieved in particular by means of a sleeve for receiving the blade of a hand-cutting tool, comprising a wall delimiting a housing between a first open end for the introduction and the outlet of the blade and a second end. In particular, said second end comprises a reversible locking system adapted to cooperate with the blade for retaining the blade in the sheath.
    This solution has the advantage over the prior art to provide a locking system which is not located at the location of the opening of the sleeve.
    According to the invention, the locking system between the sheath and the blade locks / unlocks automatically when the blade is inserted into the sheath, by the only thrust of the tool into the housing of the sheath, respectively during extraction of the blade out of the sheath, by the only separation movement by pulling the tool relative to the sheath,
    Thus, it is understood that advantageously, it is the input movement of the blade that locks the locking system of the sleeve on the blade and it is the movement of the blade that unlocks the locking system. blocking, releasing by the same movement the blade.
    As a result, the locking maneuver of the blocking system of the sheath on the blade requires a similar movement to that of the blade inlet in the sheath. This locking operation between the sheath and the blade can be performed in the continuity of the input movement of the blade into the sheath, namely with two hands and by bringing the two hands together, one on the handle and the other on the sheath. In the same way, the unlocking maneuver of the blocking system of the sheath relative to the blade requires a similar movement to that of the exit of the blade out of the sheath. This unlocking operation between the sheath and the blade can be performed in the initial phase of the movement of the blade out of the sheath, ie for example with one hand: the hand gripping the handle of the tool, including by all the fingers except the thumb, and pushing the sheath which surrounds the blade, by spacing the sheath by pushing its open end from the tip of the thumb.
    Preferably, the blade of the tool or the instrument is elongated, and is preferably rectilinear or curved. Thus, in this situation, the blade has a longitudinal direction or main direction and the thrust movement of the tool by its gripping element to lock the blade, and the pulling movement of the tool by its element gripping for unlocking the blade takes place substantially in this longitudinal direction.
    According to a preferred arrangement, the locking system comprises a projecting element disposed in the housing and able to pass reversibly from an advanced position, wherein said projecting element is adapted to cooperate with the blade by blocking the longitudinal position. the blade in the sheath, in a retracted position, in which the blade is free to move longitudinally in the housing. In this configuration, it is thanks to this projecting element which cooperates by contact with the blade of the cutting tool, that one realizes the locking of the blade in the sheath.
    Furthermore, according to another preferred embodiment, the locking system further comprises resilient means tending to return said projecting element in its advanced portion. In this case, the elastic means make it possible to indent the projecting element of the housing, by passing into the retracted position and the holding of the protruding element for a short period of time in this retracted position, thus allowing the movement of the blade in the sheath, either at the entrance or at the exit.
    Also, according to yet another preferred embodiment, the locking system further comprises a lever forming tip covering a portion of the second end of the wall of the sleeve, said tip pivoting about an axis of rotation orthogonal to the direction main sheath, the projecting element and said resilient means being mounted on said tip, on either side of said axis of rotation. In this way, a tilting system is made around the axis of rotation, one end of the rocker carrying the projecting element and the other end of the rocker carrying the elastic means tending to bring the projecting element back into its position. advanced.
    Also, the present invention relates to a hand cutting tool adapted to be received in a sheath as described in the present text, comprising a blade and a gripping means attached to the blade, wherein the blade is equipped retaining means adapted to cooperate with the locking system of said sheath for retaining the blade in the sheath in the advanced position of said projecting element, so as to achieve locking between the sheath locking system and the projecting element of the blade. Of course, inversely, the retaining means disposed on the blade are adapted to cooperate with the locking system of said sheath for the separation between the blade and the sheath, in the retracted position of said projecting element, and this in order to achieve the unlocking between the sleeve locking system and the projecting member of the blade.
    In addition, the present invention relates to the assembly formed of the sheath as described in the present text, and the cutting tool as described in the present text.
    Brief description of the figures
    An exemplary implementation of the invention is indicated in the description illustrated by the appended figures in which:<tb> Fig. 1 <SEP> illustrates in perspective a cutting tool formed of a saw with a curved blade, stored in its sheath according to the invention.<tb> Fig. 2 <SEP> illustrates enlarged detail II of FIG. 1,<tb> Fig. 3 <SEP> represents the saw without its sheath, in lateral projection,<tb> Fig. 4 <SEP> is a longitudinal sectional view of the saw and sheath assembly, in the locked position.<tb> Fig. 5 <SEP> illustrates enlarged detail IV of FIG. 4, showing the free end of the blade in the second end of the sleeve, the projecting element being in its advanced position,<tb> Fig. 6 <SEP> is a detail view similar to that of FIG. 5, without the blade,<tb> Fig. 7 <SEP> is a detail view similar to that of FIG. 6, with the projecting element in its retracted position,<tb> Fig. 8 <SEP> is a lateral view from the side of the sheath and the saw mounted in the sheath, with a partial section of the second end of the sheath,<tb> Figs. 9 and 10 <SEP> are lateral views from the side of the sleeve alone, with a partial section of the second end of the sleeve, respectively in the advanced position and the retracted position of the projecting element, and<tb> Fig. 11 <SEP> is a partial exploded view of the sheath showing the constituent elements of the locking system.
    Example (s) of embodiment of the invention
    As seen in Figs. 1, 3 and 4, in the exemplary embodiment illustrated, the cutting tool 10 is a hand saw with a curved blade 12 fitted on a handle 14. This blade 12 extends between a first end 121 attached to the handle 14 and a second free end 122. This blade 12 is flat with a toothed edge 12a forming the cutting edge (at the bottom in FIGS 1, 3 and 4 with a concave shape) and a smooth edge 12b (at the top on the FIGS 1, 3 and 4 with a convex shape). These two edges 12a, 12b extend in the longitudinal direction L or main blade 12 of the saw (see Figure 3).
    As can be seen in FIGS. 1, 4 and 8 to 10, the cutting tool 10 is optionally equipped with a fastening element 16 such as a strap, mounted on the first end 201 of the sleeve 20, to facilitate attachment of the tool cutting 10 housed in its sheath 20, for example to the belt of the user.
    In particular, the blade 12 is equipped with retaining means 13 adapted to cooperate with the locking system of a sleeve 20 for retaining the blade 12 in the sleeve 20, as will be described in more detail here. -after.
    Also, as seen in particular in Figs. 3, 4 and 5, the retaining means 13 are arranged on the portion of the blade 12 comprising the free end 122 of the blade. Alternatively, according to a provision not shown, the retaining means are not arranged on the portion comprising the second end 122 of the blade 12, but on another portion of the blade 12, for example a central portion, arranged between the first end 121 and the second end 122 or free end.
    Moreover, as can be seen in particular in FIGS. 3, 4 and 5, the retaining means 13 are arranged on the edge of the blade 12, in this case on the smooth edge 12b. Alternatively, according to a provision not shown, the blade 12 may comprise teeth along the two edges, that is to say on the two wafers, and in this case the retaining means 13 are arranged on one side. either of the borders.
    Also, in the illustrated embodiment, as seen in particular in FIGS. 3, 4 and 5, the retaining means 13 comprise a notch adapted to reversibly receive a projecting element present in the housing of the sheath 20, as will be described in more detail below. This notch may have a variable size and shape, adapted to the position, size and shape of this salient element.
    Thus, in this example, said cutting tool 10 is a saw whose blade 12 has a toothed edge along one of the edges 12a of the blade and the opposite edge 12b of the blade has said retaining means 13 intended to cooperate with the sheath 20 for locking and unlocking between the blade 12 and the sheath 20.
    In the illustrated embodiment, as seen in particular in FIGS. 4, 6, 8 and 10, the sheath 20 has a curved shape. In general, the sleeve 20 has a shape and dimensions allowing the blade 12 to be entirely in the housing 22 defined by the wall 24 of the sleeve 20, entering from an opening 23 defining the entrance of the sleeve 20 (left in Figs 1, 4, 8, 9 and 10).
    In the illustrated example, the wall 24 of the sleeve follows the curved contour of the blade 12 and the flattened shape of the blade 12. For this purpose, the wall 24 is divided into two substantially planar side walls 241 and 242, intended to cover the two flat faces of the blade 12, and two edge walls 243, 244 intended to cover the two edges 12a, 12b of the blade 12. These two edge walls 243 and 244 have for this purpose a curvilinear profile in section. As seen in the example shown, the outer face of these two edge walls 243 and 244 is equipped with a loop 246 allowing the attachment of the sleeve, in particular on the leg of the user.
    Thus, the wall 24 of the sleeve 20 comprises, extending between the first end 201 and the second end 202, two side walls 241 and 242 (forming the sides of the sleeve 20) of substantially flattened shape and parallel to each other. , and two edge walls (forming the edges of the sleeve 20) interconnecting the two side walls 241 and 242.
    These two side walls 241 and 242 and one (243) of these two edge walls extend in the longitudinal direction L, between a first end 201 and a second end 202, over a length at least equal to to, and in this case a little longer than, the length of the blade 12. The other edge wall 244 (at the top in Figures 1, 4, 8, 9 and 10) is shorter in length. location of its first end 201 because a longitudinal notch 245 extends the opening 23 (left in Figures 1, 4, 8, 9 and 10). Thus, the opening 23 of the first end 201 extends on the wall 24 at the location of a notch 245 replacing a portion of at least one of the edge walls 243, 244. In this way, thanks to the extension by the notch 245 of the opening 23, set back from the first end 201, facilitates the entry of the blade 12 into the sleeve 20 and the outlet of the blade 12 out of the sleeve 20 in certain configurations: , especially when the sheath is attached to the waistband of the user, this extension along the side of the sheath 20 of the opening 23 reduces the upward amplitude of the arm movement performed by the user, for improved comfort during this operation.
    The second end 202 of the sheath 20 is equipped with the locking system 26, intended to cooperate with the retaining means 13 of the blade 12 of the saw 10, formed of the notch in the illustrated example, in order to reversibly block the position of the blade 12 in the sheath 20.
    More specifically, the locking system 26 comprises a tip forming a lever 261 capping a portion of the second end 202 of the wall 24 of the sleeve 20. In the example shown, as can be seen in FIGS. 1, 2 and 4 to 11, and in particular in FIGS. 5 to 7 and 11, the tip 261 caps the recessed end portion 247 of the second end 202 of the wall 24 of the sleeve 20, partially covering the upper edge wall 244 and the two side walls 241 and 242, and in particular an end region of the upper edge wall 244 and two side walls 241 and 242. This tip 261 forms a lever pivoting about an axis of rotation (materialized by the shaft 262) orthogonal to the direction In particular, this axis of rotation is orthogonal to the two side walls 241 and 242, by means of the rotation shaft 262 disposed through the endpiece 261 and said recessed portion 247, at the location a central section of the endpiece 261, respectively in passages 261a of the endpiece 261 and a passage 249 of the recessed portion 247.
    Furthermore, a projecting element 264 and resilient return means 266 are mounted on said endpiece 261, on either side of said shaft 262. Thus, in the rest position of the endpiece 261, as shown in FIG. figs. 5 and 6, said projecting element formed of the rod 264 is positioned downwards. In figs. 7 and 10, the end piece 261 is in the other position, with the rod 264 up, and the spring 266 compressed: this other position is obtained after tilting of the end piece 261 around the shaft 262, by pressing the smooth edge 12b of the blade against the rod, during the insertion movement of the blade 12 in the sleeve 20 or during the extraction movement of the blade out of the sleeve 20. In this case, the smooth edge 12b of the blade maintains the stem raised and exerts with the rod a force which counterbalances that of the compression spring 266. During this advance movement of the blade 12, when the notch 248 arrives at the location of the rod 264, the latter automatically descends accommodating in the notch 13 whereby the blade 12 is locked in a reversible lock in the sleeve 20, and this under the effect of the force exerted by the spring 266, which allows the pivoting of the tip 261 around of the tree 262 and the descent of the stem in notch 13.
    Thus, according to the exemplary embodiment illustrated, elastic means are used comprising said compression spring 266 disposed at the location of a distal section of the end piece 261 which corresponds to the second end 202 of the sleeve 20, said spring 266 extending between the inner face of the nozzle 261 and the outer face of the portion 247 of the wall 24 of the sleeve 20. Other types of resilient means may be used, such as an elastic blade.
    Also, in the illustrated example, said projecting element comprises a rod 264 extending in said housing 22 and in the notch 248 parallel to said axis of rotation (the shaft 262) and orthogonal to the two side walls. 241 and 242. More specifically, the two ends of the rod 264 are mounted holes 261b passage present in the proximal section of the nozzle 261 which is spaced from the second end 202 of the sleeve 20. This locking rod 264 could be replaced by another type of projecting element, such as a tongue.
    Furthermore, the portion 247 of the wall 24 of the sleeve 20 comprises the notch 248 (see Figs 5 to 7 and 11) allowing, when said tip 261 tilts around said axis of rotation (the shaft 262). , the displacement of the rod 264 between said advanced position, wherein the locking rod 264 is housed in the notch 248 and holds the blade 12 in the sleeve 20, in said retracted position, in which the rod 261 allows the passage of the blade 12 in the housing 22. In the advanced position, or rest position of the rod 261, the rod 261 bears against the bottom of the notch 248 and / or the proximal portion of the tip 261 (which is turned towards the first end 201 of the sheath 20) bears against the recessed portion 247 of the wall 24 of the sheath 20.
    Preferably, as seen in particular in FIG. 11 and in figs. 5 to 7, the end portion 247 has an outer face recessed relative to the remainder of the outer face of the wall 24 of the sleeve 20. This configuration is obtained with a thinned wall thickness to allow the fitting of the tip 261 with the outer face of the tip 261 substantially flush with the outer face of the remainder of the wall 24, and in particular the crest wall 244 and the two side walls 241 and 242.
    According to another preferred arrangement, as can be seen in particular in FIGS. 1 and 4, the sheath 20 further comprises, towards its first end 201. a freely rotatable element 28 about an axis of rotation orthogonal to the side walls 241 and 242, such as a roller, disposed in an opening of the wall 243. This element 28 is arranged flush with the inner face of the lower edge wall 243. Such a rolling element 28 allows the guide of the blade 12 during its displacement relative to the sheath 20, while avoiding wear of the zone of the wall 24 of the sheath opposite the cutting edge 12a of the blade 12 by friction with this cutting edge 12a. In the example illustrated, the roller is thus close to the opening 23, on the side of the first end 201 of the sleeve 20 opposite the notch 25.
    The saw 10 and the sleeve 20, optionally equipped with the fastener 16, form a cutting assembly 100.
    Reference numbers used in the figures
    [0041]<tb> L <SEP> Longitudinal Direction<tb> 100 <SEP> Cutting set<tb> 10 <SEP> Cutting tool (saw)<Tb> 12 <September> Blade<tb> 121 <SEP> First End<tb> 122 <SEP> Second end<tb> 12a <SEP> Sharp Border<tb> 12b <SEP> Smooth border<tb> 13 <SEP> Restraint means (notch)<Tb> 14 <September> Handle<tb> 16 <SEP> Fastening element (strap)<Tb> 20 <September> Scabbard<tb> 201 <SEP> First End<tb> 202 <SEP> Second end<Tb> 22 <September> Housing<Tb> 23 <September> Opening<Tb> 24 <September> Wall<tb> 241 <SEP> Side wall<tb> 242 <SEP> Side wall<tb> 243 <SEP> Ridge wall<tb> 244 <SEP> Ridge wall<Tb> 245 <September> Notch<Tb> 246 <September> Loop<tb> 247 <SEP> Terminal portion set back<Tb> 248 <September> Slash<Tb> 249 <September> Passage<tb> 26 <SEP> Locking system<Tb> 261 <September> Tip<Tb> 261a <September> Passage<Tb> 261b <September> Hole<Tb> 261c <September> Ergot<tb> 262 <SEP> Axis of rotation<tb> 264 <SEP> Locking rod<Tb> 266 <September> Springs<tb> 28 <SEP> freely rotating element (guide roller)
    权利要求:
    Claims (16)
    [1]
    1. Sleeve (20) for receiving the blade (12) of a hand-cutting tool, comprising a wall (24) defining a housing (22) between a first end (201) open for introduction and exit of the blade (12) and a second end (202), characterized in that said second end (202) comprises a locking system (26) reversible adapted to cooperate with the blade (12) for retaining the blade (12). ) in the sleeve (20).
    [2]
    2. Sleeve (20) according to claim 1, wherein the locking system (26) comprises a projecting element (264) disposed in the housing (22) and able to reversibly pass from an advanced position, wherein said protruding element (264) is adapted to cooperate with the blade (12) by blocking the longitudinal position of the blade (12) in the sleeve (20), in a retracted position, in which the blade (12) is free to move in the longitudinal direction in the housing (22).
    [3]
    3. Sheath (20) according to claim 2, wherein the locking system (26) further comprises resilient means (266) tending to bring said projecting member (264) in its forward portion.
    [4]
    4. Sleeve (20) according to claim 3, wherein the locking system (26) further comprises a tip (261) forming a lever covering a portion of the second end (202) of the wall (24), said tip ( 261) pivoting about an axis of rotation orthogonal to the main direction of the sleeve (20), the projecting element (264) and said elastic means (266) being mounted on said tip (261), on both sides of said axis of rotation.
    [5]
    The sheath (20) according to claim 4, wherein said resilient means comprises a compression spring (266) disposed at the location of a distal portion of the tip (261) which corresponds to the second end (202). the sleeve (20), said spring (266) extending between the inner face of the nozzle (261) and the outer face of the portion.
    [6]
    6. Sleeve (20) according to claim 4 or 5, wherein said projecting element comprises a rod (264) extending in said housing (22) parallel to said axis of rotation, the two ends of the rod (264) being mounted in a proximal section of the tip (261) which is spaced from the second end (202) of the sleeve (20), said portion of the wall (24) of the sleeve (20) comprising a notch (248) allowing, when said tip (261) tilts about said axis of rotation, moving the rod (264) between said advanced position, wherein the rod (264) is housed in the notch (248) and holds the blade (12) in the sleeve (20), in a retracted position, wherein the rod (264) allows the passage of the blade (12) in the housing (22).
    [7]
    7. Sheath (20) according to any one of claims 1 to 6, wherein the wall (24) of the sleeve (20) comprises, extending between the first end (201) and the second end (202), two side walls (241, 242) of substantially flattened and parallel to each other, and two edge walls (243, 244) interconnecting the two side walls (241, 242).
    [8]
    8. Sleeve (20) according to any one of claims 1 to 7, wherein the opening (23) extends on the wall (24) at the location of a notch (245).
    [9]
    9. Sleeve (20) according to any one of claims 1 to 8, further comprising a member (28) freely rotatable disposed in the wall (24) flush with the inner face of the wall (24).
    [10]
    10. Sheath (20) according to any one of claims 1 to 9, having a curved shape.
    [11]
    11. Hand cutting tool (10) adapted to be received in a sleeve (20) according to any one of claims 1 to 10, said cutting tool comprising a blade (12) and a gripping element (14) attached to the blade (12), wherein the blade (12) is equipped with retaining means (13) adapted to cooperate with the locking system (26) of said sheath (20) for the retention of the blade (12) in the sheath (20).
    [12]
    12. Cutting tool (10) according to claim 11, wherein the retaining means (13) are disposed on the portion of the blade (12) comprising the free end of the blade (12).
    [13]
    13. Cutting tool (10) according to claim 10 or 11, wherein the retaining means (13) are arranged on the edge of the blade (12).
    [14]
    14. Cutting tool (10) according to one of claims 10 to 13, wherein the retaining means comprises a notch (13) adapted to receive a projecting element (264).
    [15]
    A cutting tool (10) according to any one of claims 11 to 14, formed of a saw whose blade (12) has a toothed edge along one of the edges (12a) of the blade (12). ) and the opposite edge (12b) of the blade (12) has said retaining means (13).
    [16]
    16. A formed barrel assembly (20) according to any one of claims 1 to 9, and said cutting tool (10) according to any one of claims 10 to 15.
    类似技术:
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    FR2981599A1|2013-04-26|Device for operating blade of pocket knife, has handle provided with plates, blade comprising heel provided with hole, and assistance unit for assisting to opening of blade placed at rear of handle
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    同族专利:
    公开号 | 公开日
    CH711489B1|2020-01-15|
    FR3040651B3|2017-10-06|
    FR3040651A3|2017-03-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2618057A|1951-04-20|1952-11-18|Fred H Gibson|Self-locking knife sheath|
    US3524570A|1968-09-04|1970-08-18|Merle W Seguine|Retainer for sheath knives|
    JPS53146199U|1977-04-23|1978-11-17|
    US4404747A|1981-07-29|1983-09-20|Schur, Inc.|Knife and sheath assembly|
    US20130026054A1|2011-07-28|2013-01-31|Philip Peter Adams|Knife sheath|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01269/15A|CH711489B1|2015-09-03|2015-09-03|Scabbard for the blade of a hand cutting tool and associated cutting tool.|CH01269/15A| CH711489B1|2015-09-03|2015-09-03|Scabbard for the blade of a hand cutting tool and associated cutting tool.|
    FR1670482A| FR3040651B3|2015-09-03|2016-09-01|BLADE FOR A HAND CUTTING TOOL, ASSOCIATED CUTTING TOOL, AND ASSEMBLY COMPRISING SUCH A CUTTING TOOL AND CUTTING TOOL|
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