JP2006136395A - Cutter knife for slush quilt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutter knife for a slush quilt by which the changing operation of various kinds of whole width member is easy which can be easily used and has long service life. <P>SOLUTION: A guide member holding base 30 extending to a user side making an acute angle relative to the longitudinal axis B of a cutter knife body at the distal end of the cutter knife body 20 slidably housing an elongate blade 50. An elongate guide member 60 is slidably and detachably attached to the guide member holding base 30. The blade 50 has a plurality of breaking grooves 52 formed parallel in a constant interval in a longitudinal direction, and the cutter knife body 20 has a notched section 25 for exposing the edge 51 of the blade to the user side at the position of the proximal side from the guide member holding base 30. A slit allowing the blade 50 to pass is formed in the end face of the guide member holding base, and the end face extends in a direction aligned with the breaking grooves 52 formed in the blade. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cutter knife for a slash quilt.

  A decorative cloth called a slash quilt cloth is known as a material used for sewing pouches and bags. As shown in FIG. 1, the slash quilt cloth is formed by superposing a plurality of cloths and sewing them along a plurality of seams 6 parallel to each other. Is formed by cutting (see arrow A in FIG. 1) the region between the plurality of seams 6. The slash quilt cloth constituted in this way has a unique texture with a profound feeling or an aesthetic appearance.

  What was described in patent document 1 is known as a cutter knife used for producing the said slash quilt cloth. In the cutter knife disclosed in Patent Document 1, is the guide member that guides the cutting direction during the cutting operation integrated with the cutter knife body or is screwed, so is it impossible to replace the guide member? Or, replacement work becomes complicated.

  In producing the slash quilt cloth, it is preferable that the entire width dimension of the guide member is substantially equal to the pitch dimension between the stitches 6 in order to apply an appropriate tension to the upper cloth 5a to be cut and smooth the cutting operation. On the other hand, since there are various pitch dimensions between the stitches 6, it is preferable that the guide member can be easily exchanged for various full width dimensions.

  That is, in the cutter knife disclosed in Patent Document 1, it is impossible to replace the guide member (when integrally formed), or even if it is replaceable, the replacement work is complicated (screwing) Therefore, it is inconvenient to use universally for slash quilt cloth of various pitch dimensions.

Registered Utility Model No. 3048727

  The present invention was devised in view of the above circumstances, and provides a cutter knife for a slash quilt that is easy to use and has a long service life as well as being easy to replace various full width guide members. The purpose is to do.

The cutter knife according to the present invention is provided at the tip of the cutter knife body, which is slidably accommodated with an elongated blade coupled to a slider, and has an acute angle with respect to the longitudinal axis of the cutter knife body. Thus, a guide member holding base extending to the user side and an “elongated guide member detachably attached to the guide member holding base” are provided.
The blade has a plurality of folded grooves formed in parallel at regular intervals in the longitudinal direction. The cutter knife body includes a notch that exposes the edge of the blade to the user at a position closer to the base end than the guide member holding base.
A slit that allows passage of the blade is formed on the end surface of the guide member holding base, and the end surface extends in a direction that aligns with a fold groove formed in the blade.

In the cutter knife of the present invention having the above-described configuration, the guide member is slidably attached to the guide member holding base so that the guide member can be easily replaced. Therefore, in producing various slash quilt cloths having different pitch dimensions between stitches, it is convenient to use a plurality of guide members having different overall width dimensions as appropriate for general use.
In addition, since the blade edge used for the cutting operation is a pull-type cutter knife with the user facing the user, various and highly safe cutting operations can be realized.
Furthermore, since a blade with a plurality of folding grooves formed in parallel at regular intervals in the longitudinal direction is adopted, when the sharpness deteriorates, the blade tip portion is sequentially broken, The sharpness can be restored, resulting in a cutter knife with a long life.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

≪Overall structure≫
First, a schematic overall configuration of a cutter knife 10 according to an embodiment of the present invention will be described. FIG. 2 is an exploded perspective view showing the cutter knife 10. The main body 20 of the cutter knife 10 has a slide groove 21 in the longitudinal direction, and slidably receives the blade 50 connected to the slider 40. The blade 50 is connected to the slider 40 by engaging the connecting hole 55 with the connecting protrusion 45 on the slider 40 side.
A guide member holding base 30 is integrally formed at the tip of the cutter knife body 20. The guide member holding base 30 extends toward the user side at an acute angle with respect to the longitudinal axis B of the cutter knife body 20. An elongated guide member 60 is slidably attached to the guide member holding base 30.
After the slider 40 and the blade 50 are accommodated in the slide groove 21 of the cutter knife body 20, the clip 70 is attached so as to close the proximal end side of the cutter knife body 20.

  Next, important features and usage of the cutter knife 10 will be described.

≪It must be a pull-type type≫
The cutter knife of the present invention is a pulling type that allows a user to perform a cutting operation while grasping it and pulling it forward.
For this reason, the guide member holding base 30 provided at the tip of the cutter knife body 20 makes an acute angle (that is, an angle smaller than 90 °) with respect to the longitudinal axis B of the cutter knife body 20 on the user side. It extends and a guide member is slidably fixed here. And the cutter knife main body 20 is provided with the notch part 25 which exposes the edge 51 of the braid | blade 50 to a user side in the position of a base end side rather than the guide member holding stand 30. FIG.
In the upper cloth cutting process at the time of producing the slash quilt cloth, for example, as shown in FIG. 3, it is typical to place the cloth on the work table and cut the upper cloth 5a. In the case of the pull-type type, it is possible to perform cutting on such a workbench, and in addition to that, for example, as shown in FIG. Cutting can be performed by various methods, such as cutting down toward. Such a cutting operation is impossible with a pusher type cutter knife (one that performs a cutting operation while pushing the cutter knife forward).
Furthermore, even when the top cloth cutting process is performed on the workbench, the puller type that performs cutting while pulling the cutter knife forward will inadvertently knock down the existing objects. It is safe without any delay.

<< Configuration of Guide Member Holding Table 30 >>
The guide member holding base 30 provided at the tip of the cutter knife main body 20 extends toward the user side at an acute angle with respect to the longitudinal axis B of the cutter knife main body 20, and the guide member 60 slides here. Fixed to the expression.
In the example shown in FIG. 5, the guide member holding base 30 is formed with a rail-like slide engaging portion 31 along the extending direction. On the other hand, an engagement groove 61 is also formed in the guide member 60 along its longitudinal direction. The guide member 60 can be mounted on the guide member holding base 30 by slidingly engaging the engaging groove 61 with the slide engaging portion 31. By setting the width dimension of the slide engagement portion 31 to be slightly larger than the width dimension of the engagement groove 61, both are frictionally engaged with a constant strength. As another example, it is possible to employ snap engagement using unevenness, but there is an advantage that the structure is simpler and the manufacturing cost can be reduced by using friction engagement.

The guide member 60 is inserted between the seams 6 and 6 of the slash quilt cloth when the upper cloth 5a is cut, and guides the progress of the cutter knife 10 (see FIGS. 1 and 3). However, at this time, in order to apply an appropriate tension to the upper cloth 5a to be cut and smoothly perform the cutting operation, the entire width dimension of the guide member 60 is substantially equal to the pitch dimension between the stitches 6 and the stitches 6. It is necessary to be equal. Since there are various pitch dimensions between the stitches, in order to use one cutter knife for a variety of production of various slash quilt cloths, guide members 60 having various full width dimensions. It is preferable to prepare and use each guide member 60 as appropriate.
For this reason, the cutter knife of the present invention in which the guide member 60 can be easily replaced is extremely advantageous. It is also convenient for the user if a plurality of types of replacement guide members (not shown) having different overall width dimensions are combined and provided for one cutter knife.

  When providing a combination of a plurality of types of replacement guide members, it is preferable to provide a storage portion (not shown) for storing the replacement guide member in the cutter knife body 20. Although the concrete form of such a storage part may be what, for example, the cutter knife body 20 is configured to be thick, a storage room is provided in the thick part, and the clip 70 is attached. A configuration in which the insertion opening is exposed to the outside when removed is conceivable.

≪Adoption of bent blade type blade≫
In the cutter knife of the present invention, a folding blade type blade 50 having a plurality of folding grooves 52 is employed. When the sharpness of the blade 50 is deteriorated, the blade 50 is folded in the folding groove 52, so that a new blade portion can be used for the cutting operation, so that the life of the cutter knife is very long.

  When the guide member 60 is removed from the guide member holding base 30, a slit is formed in the end surface 30a of the guide member holding base 30 exposed to the outside. By operating the slider 40, as shown in FIG. 6, the tip 50a of the blade 50 can be exposed to the outside through the slit. In FIG. 6, the slit itself does not appear, but the blade tip 50a is exposed to the outside through the slit.

The end surface 30 a of the guide member holding base 30 extends in a direction aligned with the folding groove 52 formed in the blade 50. That is, in a state where the blade 50 is mounted on the cutter knife body 20, the end face 30a and the fold groove 52 are parallel to each other. In FIG. 6, the end surface 30 a and the most distal folding groove 52 a overlap each other. By applying an external force to the blade tip in such a state, it is easy to fold the blade 50 along the fold groove 52a.
After cutting off the tip of the blade 50, if the blade 50 is returned into the cutter knife body 20 and the guide member 60 is mounted, the unused new blade portion is located in the notch 25, so that the sharpness is improved. Recover.

In order to facilitate the work of breaking the tip of the blade 50, it is preferable to provide the blade folding portion 71 in the clip 70. For example, as shown in FIG. 7, a slit-like groove 71 that can be engaged with the blade is provided at the end of the clip 70. In FIG. 7, the protruding portion 75 is a portion that engages with the proximal end side of the cutter knife body 20 in FIG. 2.
If such a blade folding part 71 is provided in the clip 70, as shown in FIG. 8, by engaging the blade folding part 71 with the tip of the blade 50 and applying an external force in the direction of arrow C, the tip part Can be easily done.

The principal part perspective view explaining a slash quilt cloth. The disassembled perspective view of the cutter knife which concerns on one Embodiment of this invention. The figure which shows the top cloth cutting process on a work table. The figure which shows the upper cloth cutting process in the state which lifted the cloth with one hand. Explanatory drawing explaining the attachment method of a guide member. Explanatory drawing of the state which exposed the blade front-end | tip part outside. The perspective view which shows a clip. Explanatory drawing explaining the breaking method of a braid | blade.

Explanation of symbols

5 Lowermost fabric 5a Upper fabric (multiple layers)
6 Seam 10 Cutter knife 20 Cutter knife body 21 Slide groove 25 Notch 30 Guide member holding base 31 Slide engagement part 40 Slider 45 Connection protrusion 50 Blade 51 Edge 52 Folding groove 55 Connection hole 60 Guide member 61 Engagement groove 70 Clip 71 Blade folding part (groove)
75 Protrusion

Claims (5)

A cutter knife body (20) in which an elongated blade (50) connected to the slider (40) is slidably received;
A guide member holding base (30) provided at the tip of the cutter knife body (20) and extending toward the user side at an acute angle with respect to the longitudinal axis (B) of the cutter knife body;
An elongated guide member (60) detachably attached to the guide member holding base (30) in a slidable manner, and a cutter knife comprising:
The blade (50) has a plurality of folded grooves (52) formed in parallel at regular intervals in the longitudinal direction,
The cutter knife body (20) includes a notch (25) that exposes the edge (51) of the blade to the user side at a position closer to the base end side than the guide member holding base (30).
A slit that allows passage of the blade (50) is formed on the end surface (30a) of the guide member holding base, and the end surface (30a) extends in a direction that aligns with the folding groove (52) formed on the blade. A cutter knife characterized by being present.   The guide member holding base (30) is provided with a rail-like slide engaging portion (31), and the guide member (60) has its engaging groove (61) in the sliding engagement of the guide member holding base (30). The cutter knife according to claim 1, wherein the cutter knife is attached to the guide member holding base (30) by friction engagement with the joint portion (31).   A clip (70) is detachably attached to the proximal end side of the cutter knife body (20), and the clip (70) passes through a slit formed in the end surface (30a) of the guide member holding base. The cutter knife according to claim 1, further comprising a blade folding portion (71) that engages with the exposed blade portion.   A cutter knife according to claim 1, characterized in that it comprises another replacement guide member having a different overall width from the guide member (60). The cutter knife according to claim 4, wherein the cutter knife body (20) includes a storage portion for storing a replacement guide member.