JP6303552B2 - scissors - Google Patents

Description

  The present invention relates to a bag that is suitably used in offices, schools, and the like.

  When the bag is stored in a storage device such as a pen case and carried, it is particularly required to reduce the width of the handle so that the bag can be stored in a limited storage space in the storage device.

  As a configuration for reducing the width dimension of the heel when the heel is closed, a configuration in which the finger hook portion of the other slim handle is arranged closer to the axis than the finger hook portion of the one slim handle is known. (For example, refer to Patent Document 1). If it is such, it is because the finger hook part of the pattern which makes a pair can be arrange | positioned in the width direction position which is the same or close.

  However, this type of conventional heel has finger hooks that open in the same direction, but the user's thumb is on one slim handle finger and the user's thumb is on the other slim handle finger hook. When using this kind of scissors with other fingers, the thumb and other fingers extend in different directions. For this reason, there is a problem that the gripping mode when performing the cutting operation is unnatural and unusable.

Japanese Utility Model Publication No. 61-134780

  The present invention pays attention to the above points, and an object thereof is to reduce the width dimension of the bag without impairing the usability and to facilitate the carrying.

In order to solve the above problems, the bag according to the present invention has a configuration as described below. That is, the scissors according to the present invention are scissors having a pair of slimmings each having a handle and a blade piece having a blade line, and a shaft that rotatably couples the paired slimmings,
One slim handle has a first finger hook for accepting an operation force by the user's thumb,
The other slim handle has a second finger rest for receiving an operating force by a finger other than the user's thumb, and the first finger rest is arranged closer to the axis than the second finger rest. The first finger rest and the second finger rest in the closed state are arranged in the same or close position in the width direction and are closed in a closed state. a connecting portion wherein the first finger engaging the second finger placing and are overlapped in the width direction, wherein the pattern of one of the scissor body, which connects between the first finger engaging the shaft in the first And a pressing part that is provided between the connection part and the first fingering and receives an operating force for moving one slimming toward the other slimming, the pressing part, A curved plate-shaped part connecting the first finger hook and the connection part That.

  If it is such, the width dimension of the eyelid in the state which closed the eyelid can be made small by arrange | positioning a 1st finger rest to the side near an axis | shaft rather than a 2nd finger rest. In addition, since the first finger rest and the second finger rest are opened in different directions, the heel can be gripped in a natural manner, and the usability can be improved.

  According to a second aspect of the present invention, in the configuration according to the first aspect, the second finger hook is opened in a direction perpendicular to a sliding surface on which the blade lines slide.

According to a third aspect of the present invention, in the configuration of the first or second aspect , the scissors according to the third aspect include an inclined portion in which the inner surface of the pressing portion is inclined with respect to the normal line of the sliding surface on which the blade lines slide. It is what.

According to a fourth aspect of the present invention, in the configuration of the first, second, or third aspect , the crossing angle formed by the two blade lines does not substantially change or the cutting position moves away from the axis in the blade tip side portion of the blade line. A cutting edge side region in which the crossing angle increases is set.

  According to the present invention, it is possible to reduce the width dimension of the bag without impairing the usability and to facilitate the carrying.

1 is an overall perspective view showing a bag according to an embodiment of the present invention. The whole front view which shows the bag which concerns on the same embodiment. The whole front view which shows the state which opened the bag which concerns on the same embodiment. The front view which shows the handle | stalk pattern which concerns on the embodiment. The side view which shows the handle | steering-wheel pattern and its holding | grip aspect which concern on the embodiment. The top view which shows the pattern of the heel which concerns on the same embodiment. AA sectional drawing in FIG. The perspective view which shows the scissors which concern on the embodiment, and its holding | grip aspect.

  One embodiment of the present invention will be described below with reference to FIGS.

  As shown in FIGS. 1 to 3, the heel H according to the present embodiment includes a first slimming body 11 having a first blade piece 31 and a second blade that makes a pair with the first blade piece 31. The second slimming body 12 having the piece 32 is coupled to be rotatable about the support shaft 4.

  As shown in FIGS. 1 to 3, the first slimming body 11 includes a first handle 21 and the first blade piece that is attached by inserting a proximal end side into the front end of the first handle 21. 31.

  As shown in FIGS. 1 to 8, the first handle 21 is a first operation unit 211 that is placed in a first finger ring 211 a that is a finger for a user to insert the thumb T. And a connection part 212 for connecting the first operation part 211 and the support shaft 4 to each other. As described above, the base end side of the first blade 31 is inserted and attached to the front end of the first handle 21, that is, the end close to the shaft 4.

  The first blade piece 31 sandwiches the paper sheet between the first blade piece 31 and the second blade piece 32 when the paper sheet or the like is cut using the scissors H. The first blade piece 31 is a plate-like member formed by integrally pressing the whole using a metal plate mainly made of stainless steel as a raw material. The thickness dimension of this metal plate is arbitrary. Moreover, in this embodiment, as shown in FIGS. 1-3, this 1st blade piece 31 is slidable with the said 2nd blade piece 32, and the flat blade back surface which is not shown in figure and said 2nd blade piece. The blade line 31c is formed between the outer surface, ie, the blade surface 31b, which is a surface facing the opposite side to 32. Further, the first blade piece 31 is positioned in the vicinity of the blade peak 31d formed at the side edge opposite to the blade line 31c, the blade tip 31e located at the distal end, and the base end, that is, in the vicinity of the support shaft 4. A blade base 31f. In addition, a blade base side region 31c1 and a blade tip side region 31c2 are set in the blade line 31c. The cutting edge side area 31c1 and the cutting edge side area 31c2 are adjacent to each other, and the intersection angle between the cutting edge lines is minimized at the boundary between the cutting edge side area 31c1 and the cutting edge side area 31c2. That is, the crossing angle is larger than the crossing angle at the boundary over the entire cutting edge side region 31c2. As described above, the second blade piece 32 constituting the second slimming body 12 is attached to the first blade piece 31 via the support shaft 4.

  On the other hand, as shown in FIGS. 1 to 3, the second slimming body 12 includes a second handle 22 and a second blade piece that is attached by inserting the proximal end side into the front end of the second handle 22. It comprises the second blade piece 32 that is a barrel.

  As shown in FIGS. 1 to 6 and 8, the second handle 22 is a second handle for hanging fingers other than the user's thumb T in a second finger ring 221 a that is a predetermined finger-hanging region. 2 operation parts 221, and a connection part 222 that connects the second operation part 221 and the support shaft 4. As described above, the proximal end side of the second blade piece 32 is inserted and attached to the front end of the second handle 22, that is, the end close to the shaft 4.

  The second blade piece 32 is paired with the first blade piece 31, and when cutting a paper sheet or the like using the scissors H, the second blade piece 32 is used to move the paper sheet between the second blade piece 31 and the first blade piece 31. It is something to sandwich. Similarly to the first blade piece 31, the second blade piece 32 is also a plate-like material formed by press-molding the entire body using a metal plate mainly made of stainless steel. It is. Further, in the present embodiment, as shown in FIGS. 1 to 3, the second blade piece 32 is slidable with the first blade piece 31 and has a flat blade back surface 32 a and the first blade piece 31. A blade line 32c is formed between the outer surface, ie, the blade surface (not shown), which faces the opposite side. The total length of the blade line 32c is also arbitrary. Further, the second blade piece 32 is positioned in the vicinity of the blade ridge 32d formed at the side edge opposite to the blade line 32c, the blade tip 32e positioned at the distal end, and the proximal end, that is, in the vicinity of the support shaft 4. A blade base 32f.

  Curves of the blade lines 31c and 32c of the first blade piece 31 and the second blade piece 32 gradually decrease in the crossing angle formed by both the blade lines 31c and 32c as the cutting position moves away from the axis along with the cutting operation. A cutting edge side region 31c1, 32c1, and a cutting edge side region 31c2 that is adjacent to the cutting edge side of the cutting edge side region and the crossing angle does not substantially change or the crossing angle increases as the cutting position moves away from the axis, 32c2 is set. In the blade base side regions 31c1 and 32c1, the width dimensions of the first blade piece 31 and the second blade piece 32 are substantially constant. On the other hand, in the cutting edge side regions 31c2 and 32c2, the width dimensions of the first cutting edge 31 and the second cutting edge 32 become smaller as they approach the cutting edges 31e and 32e.

  Here, the configuration of the first handle 21 will be described in further detail.

  As shown in FIGS. 1 to 8, the first handle 21 includes the first operating portion 211, the connecting portion 212 that connects the first operating portion 211 and the support shaft 4, and these A pressing unit 213 is provided between the connection unit 212 and the first operation unit 211 and receives an operation force for moving the first slimming body 11 toward the second slimming body 12.

  As shown in FIGS. 1 to 8, the first operation unit 211 is a cylindrical member having the first finger ring 211a inside. The center axis L1 of the first finger ring 211a is a sliding surface on which the blade line 31c of the first blade piece 31 and the blade line 32c of the second blade piece 32 slide as shown in FIG. It extends in a direction different from the normal line L0 of P. More specifically, the central axis L1 forms an angle θ (> 0) with the normal L0 of the sliding surface P. This angle θ is set to about 34 degrees in this embodiment. Further, as shown in FIG. 7, the central axis L1 forms an angle φ (> 0) with a straight line LX passing through the shaft 4 and the blade edge 31e in a state where the flange H is closed.

  As shown in FIGS. 1 to 8, one end of the connection portion 212 is connected to the first finger ring 211 a and extends along the straight line LX.

  As shown in FIGS. 1 to 8, the pressing portion 213 connects the connecting portion 212 to a portion closest to the shaft 4 from a connecting portion with the connecting portion 212 of the first finger ring 211 a. It is a curved plate-like part. An inner surface 213a of the pressing portion 213 is smoothly continuous with the inner surface 211b of the first finger ring 211a. When the heel H is used, as shown in FIG. 5, the user's thumb T is in contact with the inner surface 213a of the pressing portion 213 and the first finger ring 211a. And in the site | part close | similar to the 1st connection part 212 among the inner surfaces 213a of this press part 213, the inclination part 213b which has an inclination with respect to the normal line L0 of the said sliding surface P is provided. The inclined portion 213b has a function of positioning the thumb T by applying the thumb T of the user's hand. In addition, the part which attached | subjected the hatching in FIGS. 4-7 is the inclination part 213b.

  Next, the configuration of the second handle 22 will be further described in detail.

  As shown in FIGS. 1 to 6 and 8, the second handle 22 includes the second operation unit 221 and the connection unit 222 that connects the second operation unit 221 and the support shaft 4. And. In FIG. 6, the second handle 22 is indicated by an imaginary line.

  As shown in FIGS. 1 to 6 and 8, the second operation unit 221 includes a second finger ring 221 a for hanging a finger other than the user's thumb T, most preferably the middle finger F <b> 2, And a finger hooking protrusion 221b for placing the ring finger F3 of the user on the outside of the second finger ring 221a. The central axis L2 of the second finger ring 221a extends in the same direction as the normal line L0 of the sliding surface P. Here, as shown in FIGS. 1 to 5, the second operation unit 221 is arranged at a position farther from the shaft 4 than the first operation unit 211. In other words, the first operation unit 211 is arranged at a position closer to the shaft 4 than the second operation unit 221.

  One end of the connection portion 222 is connected to the second finger ring 221a and extends in a direction substantially along the straight line LX. In addition, a guide convex portion 222a that is a convex portion that bulges outward is provided at a location adjacent to the shaft 4 side end portion of the second operation portion 221 of the outer surface of the connection portion 222. The index finger F1 of the user is brought into contact with the shaft 4 side of the guide convex portion 222a.

  That is, when the heel H of the present embodiment is used in the most natural grip mode, as shown in FIGS. 5 and 8, the user's index finger F1, middle finger F2, and ring finger F3 are extended in substantially the same direction. The middle finger F2 is inserted into the second finger ring 221a, the index finger F1 is brought into contact with the shaft 4 side of the guide convex portion 222a, and the ring finger F3 is brought into contact with the finger hooking projection 221b. Then, with the thumb T of the user extending in the direction intersecting the index finger F1, the middle finger F2, and the ring finger F3, the thumb T is inserted into the first finger ring 211a and the inclined portion 213b of the inner surface 213a of the pressing portion 213 is inserted. We are attached to. At this time, the thumb T extends along the central axis L1 of the first finger ring 211a, and the fingers other than the thumb T have directions different from the central axis L1 of the first finger ring 211a, more specifically, the second finger ring 211a. The finger ring 221a extends in a direction along the central axis L2. However, even if any finger other than the thumb T is inserted through the second finger ring 221a, the heel H can be used.

  That is, according to the configuration of the present embodiment, the first operation unit 211 is arranged closer to the shaft 4 than the second operation unit 221, thereby reducing the width dimension of the bag in the closed state. be able to. In addition, since the first operation unit 211 and the second operation unit 221 are opened in different directions, the heel can be gripped in a natural manner, and the usability can be improved. it can.

  In addition, since the second operating portion 221 opens in a direction perpendicular to the sliding surface P on which the blade lines 31c and 32c slide, the first blade piece 31 and the second blade piece 32 are opened. Can be arranged perpendicular to the object to be cut such as paper sheets so that the feeling of use is not impaired.

  Furthermore, the first handle 21 is provided between the first operation unit 211, the connection unit 212, and the connection unit 212 and the first operation unit 211, and the first slimming body 11 is connected to the second slimming unit 11. A pressing portion 213 that receives an operating force for moving toward the slime body 12. The user's thumb T is brought into contact with the inner surface 213 a of the pressing portion 213, and the operating force by the thumb T is displayed on the surface. Can be received and transmitted to the first blade piece 31.

  Since the inner surface 213a of the pressing portion 213 is provided with the inclined portion 213b, the thumb T of the user is brought into contact with the inclined portion 213b to position the thumb T, thereby stabilizing the gripping state. Can be cut stably and straight.

  In addition, the crossing angle formed by the two blade lines 31c, 32c is not substantially changed in the portion on the blade tip 31e, 32e side of the blade lines 31c, 32c of the first blade piece 31 and the second blade piece 32 or the cutting position. Since the cutting edge side regions 31c2 and 32c2 are set such that the crossing angle increases as the distance from the axis increases, the load required for cutting is small even in the vicinity of the cutting edge. Can be easily performed.

  The present invention is not limited to the embodiment described above.

  For example, in the above-described embodiment, the first and second finger hooks are both annular, but if the handle can accept both the operating force in the direction in which the handles come together and the direction in which they are separated from each other, The thing of the shape where a part was notched may be sufficient.

  In the above-described embodiment, the second finger hook is opened in a direction perpendicular to the sliding surface on which the blade lines slide. However, if the first and second finger hooks are opened in different directions. The effect that it can be gripped in a natural manner can be obtained.

  Furthermore, in the above-described embodiment, the first handle is provided between the first finger rest and the first finger rest, and between the connection section and the first finger rest. A pressing part that receives an operating force for moving one slimming toward the other slimming, but this pressing part may be omitted, or even when a pressing part is provided. The shape may be arbitrarily set.

  In addition, in the above-described embodiment, the convex portion for guiding the position of the user's index finger is provided on the side closer to the axis than the second finger hook of the second handle. In addition, such a convex portion is omitted, and other means for guiding the position of the user's index finger, such as a recess for storing the index finger of the user, is provided. A mode in which means for guiding the position of the index finger is omitted may be employed.

  In addition, the blade piece may be formed of a material other than metal, such as a resin, and the blade piece and the handle may be formed of the same material.

  Furthermore, in the above-described embodiment, the direction in which the first finger hook opens (the direction in which the central axis extends) is about 34 degrees with respect to the direction in which the second finger hook opens (the direction in which the central axis extends). However, if the direction in which the first finger hook opens and the direction in which the second finger hook opens are different, in other words, if the angle formed by these exceeds 0 degrees, then 90 degrees. Any angle up to may be set.

  The shape of the blade line may be arbitrarily set such as a straight line shape or a curved shape with a constant radius of curvature throughout. However, according to the configuration of the above-described embodiment, as described above, the effect that the load required for cutting is reduced even in the vicinity of the cutting edge can be obtained.

  In addition, in order to deal with a left-handed user, it is preferable to adopt a shape that is horizontally reversed in the state of being arranged as shown in FIG.

  In addition, various changes may be made without departing from the spirit of the present invention.

H ... 鋏 11, 12 ... (first, second) slimming 21, 22 ... (first, second) handle 211a ... first finger hook (first finger ring)
212 ... 1st connection part 213 ... Press part 213b ... Inclination part 221a ... 2nd finger hook (2nd finger ring)
222 ... second connection part 31, 32 ... (first and second) blade pieces

Claims (4)

A ridge having a pair of slimming pieces each having a handle and a blade piece having a blade line, and a shaft that rotatably couples the paired slimmings,
One slim handle has a first finger hook for accepting an operation force by the user's thumb,
The other slim handle has a second finger hook for receiving an operation force by a finger other than the user's thumb,
The first finger rest is disposed closer to the axis than the second finger rest and opens in a direction different from the second finger rest;
The first finger rest and the second finger rest in the closed state are arranged at the same or close position in the width direction, and the first finger rest and the second finger rest in the closed state are over in the width direction. Wrap and
The one slim handle is provided between the first finger rest and the first finger rest, and between the first finger rest and the first finger rest. A pressing portion that receives an operation force for moving the body toward the other slime,
A ridge that is a curved plate-like portion that connects the first finger hook and the connecting portion . The scissors according to claim 1, wherein the second finger hook opens in a direction perpendicular to a sliding surface on which the blade lines slide. The scissors according to claim 1 or 2 , wherein an inner surface of the pressing portion includes an inclined portion having an inclination with respect to a normal line of a sliding surface on which the blade lines slide . The cutting edge side region in which the crossing angle formed by the two blade lines does not substantially change or the crossing angle increases as the cutting position moves away from the axis is set in a part on the cutting edge side of the cutting line. 3).

Images