JPH0639498U - Opener - Google Patents

Abstract

(57) [Summary] [Purpose] When opening envelopes or various plastic bags,
(EN) Provided is an opening device capable of efficiently cutting the contents without damaging them. [Structure] A blade portion provided with a concave blade at the base of a long guide plate, a storage case for gripping the blade portion and sliding in / out, and a blade portion provided inside the storage case. An opening device comprising a holding portion for holding the blade and an operation portion for inserting and removing the blade portion from the storage case.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an opening device used for cutting an opening part of an envelope or various bags.

[0002]

[Prior art]

 Conventionally, when opening an envelope, it is common to cut the portion to be opened with scissors or insert the gap into the gap of the envelope using a paper knife to open the envelope. Recently, envelope openers and electric openers have become commercially available. For example, electric openers such as the open cutter shown in Japanese Utility Model Publication No. 52-124796 and the actual opener 55-60396 are available. is there.

[0003]

[Problems to be solved by the device]

 Conventionally, when opening an envelope with scissors, the end of the envelope must be cut off by a few millimeters, but if the full length of the envelope contains content, cut the end of the content. It is inconvenient because it will be done. Also, in order to open the contents without cutting them, it is necessary to be careful for each envelope and pay attention to the cutting point, which is a very troublesome work. Furthermore, opening an envelope completely sealed with glue or the like with paper knife is extremely difficult because there is no insertion port for the paper knife. Now, with the unsealing cutter shown in Japanese Utility Model Publication No. 52-124796, the sealing part of the envelope is inserted into the notch groove, and is cut by the blade part exposed in the groove, but the first cut into the sealing part is easy. It is also difficult to cut straight. Therefore, it is very likely that the contents will be damaged or cut. On the other hand, in an electric opening machine such as the actual opener 55-60396, the sealing part is inserted into the envelope guide groove for cutting, but the sealing part is still more reliable than the above-mentioned opening cutter, but the sealing part is still open. Since it had to be cut for a few millimeters, it always contained the drawback of damaging the contents.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a blade portion provided with a concave blade at the root of a long guide plate, and a storage case for holding the blade portion and sliding it in and out. It is composed of a holding part that is installed inside the storage case to hold the blade part and an operation part that moves the blade part in and out of the storage case. In addition, a concave blade is provided at the base of the long guide plate, and the blade part has a hole in the blade body, a pin connecting the blade part with the storage cover, and a blade part with the pin as a fulcrum. And a storage cover for storing

[0005]

[Action]

 Since the opening device of the present invention is configured as described above, hold the envelope with one hand while holding the blade part out of the storage case and hold the opening with the storage case with the other hand to seal the envelope. When the tip of the guide plate is inserted into the portion and pushed forward while being inserted, it can be easily opened by the concave blade portion provided at the base portion of the guide plate. Moreover, not only envelopes but also daily commodities and foods can be freely opened.

[0006]

【Example】

 The present invention will be described below with reference to the drawings showing an embodiment thereof. FIG. 1 is a plan view of a first embodiment of the present invention, FIG. 2 is a plan view of a blade part, FIG. 3 is a plan view of a storage case, FIG. 4 is a front view of the storage case, and FIG. FIG. 7 is an enlarged perspective view of the holding portion, FIG. 6 is a plan view showing a second embodiment, FIG. 7 is a perspective view showing a third embodiment, and FIG. 8 is a conceptual view showing a use state. As shown in FIG. 2, steel, stainless steel, ceramic or other non-ferrous material is used for the material of the blade part 1. The elongated guide plate 6 is formed so as to be inclined or tapered from the tip 7 toward the root portion 8, and the root portion 8 is provided with a concave blade 9. In addition, a hole 11 is provided in the root portion 8. A tail portion 12 extending from the root portion 8 is formed in a rectangular shape in the opposite direction of the guide plate 6, and the tail portion 12 serves as a guide when sliding in the storage case 2.

Although the storage case 2 is formed of plastic in FIG. 3, it may be formed of metal or the like. As shown in FIG. 4, the storage case 2 comprises a substrate 13, a guide plate 14 and a cover 15. The substrate 13 has a substantially quadrilateral shape as shown in FIG. 3, but the corner portion 16 of the blade part 1 in which the guide plate 6 is housed is provided so as to project in accordance with the shape of the guide plate 6. The guide plate 14 is formed in the same shape as the base plate 13, and a protrusion 17 for sliding with the tail 12 of the blade 1 is provided on the side opposite to the corner 16. The cover 15 has a central portion formed of a convex arc, and the blade portion 1 and the holding portion 3 are internally provided in this space portion. On the upper surface of the cover 15, an elongated hole 18 for moving the operation unit 4 is provided, and notches 19 are provided at two long side portions of one of the elongated holes 18 to temporarily lock the operation unit 4. The operation part 4 is provided with a screw.

FIG. 5 is a perspective view of the holding portion 3, in which the central portion 20 is raised and both ends thereof are arched to have elasticity. A screw hole 21 is provided in the central portion 20 and the operating portion 4 is screwed into it. A protrusion 23 is provided on the lower surface of the head portion 22, and the protrusion 23 is inserted into the hole 11 to hold the blade portion 1. A push-out piece 24 is provided on the side of the head portion 22, which acts as a spring and holds the guide plate 6 of the blade portion 1 in a direction in which it is always expanded, and a clearance between the blade portion 1 and the storage case 2 is provided. It eliminates the backlash that occurs in. The tail piece 25 serves as a stopper, and when the blade part 1 is stored in the storage case 2, the tip of the tail piece 25 is placed against the innermost part of the storage case and stops.

FIG. 6 is a perspective view showing a second embodiment. The elongated guide plate 6 is formed by sloping or tapering from the tip 7 toward the root portion 8, and the root portion 8 is provided with a concave blade 9. Further, a pin hole 26 is provided in the root portion 8. The blade portion 1 and the storage cover 10 are connected by a pin 27, and the blade portion 1 is stored in the storage cover 10 with the pin 27 as a fulcrum.

FIG. 8 is a perspective view showing a third embodiment. The storage case 2 or the storage cover 10 is provided with a locking piece 5 on the back surface so that the storage case 2 or the storage cover 10 can be easily locked in a pocket of clothes or an apron.

[0011]

As described above, in the present invention, since the notch is formed at the tip of the guide plate and the portion of the envelope to be cut is cut by the blade through the guide plate, the contents are completely removed. Can be opened without damaging it. When not using the opener, it is safe to store the blade part in the storage case. Moreover, not only envelopes, but also the packaging of daily necessities and foods can be easily cut at the tip, which is very convenient. In addition, it can be easily cut out partially, providing versatility not possible with conventional products. In addition, since the storage case has a locking piece on the back side, it can be easily locked in clothes pockets, apron pockets, etc., so housewives etc. can keep it on the apron etc. and remove it as needed. , Very convenient.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a plan view of a blade portion according to the first embodiment of the present invention.

FIG. 3 is a front view of the storage case according to the first embodiment of the present invention.

FIG. 4 is a front view of the storage case according to the first embodiment of the present invention.

FIG. 5 is an enlarged perspective view of a holding portion according to the first embodiment of the present invention.

FIG. 6 is a plan view showing a second embodiment of the present invention.

FIG. 7 is a perspective view showing a third embodiment of the present invention.

FIG. 8 is a conceptual diagram showing a usage state of the present invention.

[Explanation of symbols] 1 blade part 2 storage case 3 holding part 4 operating part 5 locking piece 6 guide plate 7 tip 8 root part 9 blade 10 storage cover 11 hole 12 tail part 13 substrate 14 guide plate 15 cover 16 corner part 17 protrusion Piece 18 Slotted hole 19 Notch 20 Center part 21 Screw hole 22 Head 23 Protrusion 24 Extruded piece 25 Tail piece 26 Pin hole 27 pin

Claims (3)

[Scope of utility model registration request] 1. A blade part having a concave blade at the base of a long guide plate, a storage case for gripping the blade part and sliding it in and out, and a storage case internally provided in the storage case. An opening device comprising a holding part for holding a blade part and an operation part for putting the blade part in and out of a storage case. 2. A long blade is provided with a concave blade at the base thereof, a blade portion having a hole formed in the main body of the blade, a pin connecting the blade portion and the storage case, and a blade with the pin as a fulcrum. An opening device comprising a storage cover for storing a portion. 3. The opener according to claim 1, wherein a locking piece is provided on the back surface of the storage case or the storage cover.