JPH0516351U - Seal unit - Google Patents

Abstract

(57) [Summary] [Purpose] A stamp unit that can be attached to and detached from a shaft cylinder, has a simple structure, can be provided at low cost, and can extremely easily attach and replace a printing unit. [Structure] A shaft cylinder (5) has a partition (7) together with a ventilation hole (6), a shaft part (12) having a groove (8) formed on a side surface, a hole (18) and a corner part (3) at an upper end, and an inner hole at a lower end. The cover 2 made of a resin molded product having a protrusion 4 on its part elastically fixes the protrusion 4 to the groove 8 to form a chamber between the inside of the corner 3 and the upper surface 13 of the partition 7, and The printing portion 17 is exposed in the hole 18 in the chamber so that the printing body 16 can be stored and held.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a stamp unit in which a printing body made of a rubber stamp or a porous stamp material having innumerable continuous pores is housed and held at an upper end of a barrel.

[0002]

[Prior Art]

 Conventionally, there is known a seal stamp that does not need to be attached to the red meat each time it is used by using a printing body formed of a multi-pore printing material having innumerable continuous pores such as sponge rubber so as to absorb ink. Has been. Such a seal is fixed to the upper end of the shaft cylinder as a seal unit, and a lid is fixed so as to cover the print unit so that dust or scratches are not attached to the print unit. However, the conventional seal stamp unit has a complicated structure, which causes a problem of high cost. In addition, in order to provide the customer with a seal, we have a lot of stock of the seal unit, and supply it by mounting it on the barrel when requested. Therefore, there are problems with large inventory and problems that cannot be dealt with promptly.

[0003]

[Problems to be solved by the device]

 The present invention intends to solve the above problems and to provide a seal unit at a low cost by simplifying the structure.

[0004]

[Means for Solving the Problems]

 The stamp unit of the present invention, which has been devised to achieve the above object, has a partition along with a ventilation hole at the upper end of a shaft cylinder, forms a shaft portion having a groove on the side surface, and has a hole and a corner portion at the upper end. And a cover made of a resin molded product having a projection in the inner hole at the lower end, is elastically fixed to the groove of the shaft portion by a projection between the inside of the corner and the upper surface of the partition. A chamber is formed in the chamber, and a seal unit is configured in the chamber, in which the printing body is stored and held with the printing portion exposed to the hole.

[0005]

Embodiment FIG. 2 and FIG. 3 show a conventional example. First, as shown in FIG. 2 and FIG. 3, the stamp unit 1a is made up of innumerable sponge rubber or the like so that ink can be occluded inside a press-made cover 39 having a corner portion 41 at the upper end and a hole 40. The printing body 37 formed of a porous stamp material having a continuous through hole is stored, and the printing portion 38 engraved on the upper surface of the printing body 37 is exposed from the hole 40. Further, on the lower surface of the printing body 37, an ink occlusion body 36 that stores ink and supplies the ink to the printing body 37, and a cushion 35 that appropriately presses the printing unit 38 at the time of imprinting are provided on the shaft portion 32 of the joining shaft 30. The cover 39 is press-fitted and caulked and fixed to the shaft portion 32. Further, a ventilation hole 33 is appropriately formed on the upper surface of the shaft portion 32 to communicate with the inner hole of the joining shaft 30. Further, a flange portion 31 is formed at a lower portion of the shaft portion 32 so that the lower surface of the cover 39 is substantially in contact with the lower portion of the shaft portion 32, and a leg portion 34 having an engaging portion to be described later on the outer periphery extends below the flange portion 31. The seal stamp unit 1a is provided. In addition, a lid 42 having a ventilation hole 43 appropriately formed on the outer periphery of the cover 39 covers the printing portion 38 and is detachably fixed. It should be noted that, on the outer periphery of the cover 39, a bulging projection is appropriately provided, and means for frictionally engaging with the inner hole of the lid 42 is provided.

FIG. 4 and FIG. 5 show an example of use of the seal stamp unit as a capless seal stamp. First, the cap 53 is formed by bulging a base portion 58 having a U-shaped cutout window on the side surface of the front end of a cylindrical body having an opening 64, and the side surface of the base portion 58 located at the cutout window has a shaft. A small hole is formed in a direction substantially perpendicular to the center, and a groove 59 is formed near the rear of the small hole. A circumferential step portion 54 is formed at a substantially central position of the inner hole portion of the cap 53, and ribs are formed at appropriate places behind the step portion 54. Further, the lid portion 60 has a shaft supporting portion formed at one end, a small hole is bored in the side surface thereof, and the shaft supporting portion is provided with a U-shaped recess in cross section. A shaft support portion is fitted in the cut window of the base portion 58 in a state where a spring 61 having a rod shaft portion 62 at one end and a rod shaft portion 63 at the other end is inserted in the recessed portion, and a shaft support portion is fitted in the cut window of the base portion 58. The pin is fixed by connecting the small hole of the spring 61, the small hole formed on the side surface of the shaft support, and the small hole of the base 58. Further, the rod shaft portion 62 of the spring 61 is fixed to the groove provided in the lid portion 60, the rod shaft portion 63 is fixed to the groove 59 of the base portion 58, and the lid portion 60 is opened in the opening 64 of the cap 53. Is provided so as to be openable and closable in a state where the spring property is imparted thereto, and the lid portion 60 is configured to always shield the opening portion 37.

On the other hand, the shaft cylinder 50 has a cylinder part in the front, and two protrusions 51 are formed at the center of the cylinder part, the protrusions 51 having two slopes on the front surface, and the protrusions 51 in a direction substantially perpendicular to the protrusion 51. Slits 52 are formed on the side surface (usually at two places) so that when the protrusion 51 is pressed by the inner diameter side, it is elastically displaced appropriately toward the smaller diameter side. Further, a flange portion 52 is formed on the front side of the cylindrical portion, and the side face of the front side is engaged with an engaging portion provided on an inner hole portion of a leg portion 34 of the seal stamp unit 1a described later to stop the seal stamp unit 1a. An engaging portion that can be attached is formed, and a shaft portion 55 having a groove 57 is formed at an appropriate position at the rear of the cylindrical portion, and a crown portion 56 having a diameter substantially the same as that of the cap 53 is formed at the rear end.

As described above, the shaft cylinder 50 has the rear end hole of the cap 53 with the return spring 65 biased between the front surface of the shaft portion 55 and the step portion 54 formed in the inner hole portion of the cap 53. The groove 57 formed in the shaft portion 55 is fitted into the rib of the cap 53, and the projection 51 is fitted into the inner hole of the step portion 54 while being elastically reduced in diameter, and the front surface of the step portion 54 is inserted. Locked in. In this state, the shaft cylinder 50 is fixed to the cap 53 only so that the shaft can move. Further, the seal stamp unit 1a is fixed to the tip of the barrel 50.

By the way, FIG. 1 shows a stamp unit 1 according to an embodiment of the present invention, and the shaft cylinder 5 is also adapted to the shaft cylinder 50 shown in FIGS. 4 and 5. First, a partition 7 is formed at the upper end of the shaft cylinder 5 together with a ventilation hole 6, a shaft portion 12 having a groove 8 is provided on the side surface thereof, and a hole 18 is formed at the upper end and a corner portion 3 is formed at the edge. The cover 2 is formed of a resin molded product, and a circumferential or partial protrusion 4 is appropriately formed in the inner hole of the lower end of the cover 2. A print body 16 formed of a porous stamp material having numerous continuous pores such as sponge rubber so as to absorb ink is inserted into the inner hole of the cover 2 with the print portion 17 exposed from the hole 18. The ink occlusion body 15 and the cushion 14 are arranged at the rear end of the printing body 16, and the cover 2 is fixed to the shaft portion 12 of the shaft cylinder 5 so that the projection 4 is elastically fitted in the groove 8. The rear end of the cushion 14 is substantially in contact with the upper surface 13 of the partition 7.

By the way, a groove 10 is formed in the outer periphery of the lower end of the cover 2, a ventilation hole 19 is formed in the upper end, and a bottomed cylindrical lid 11 having a protrusion 20 in an inner hole portion of the lower end is provided. The projection 20 is elastically fitted in the groove 10 and is detachably attached thereto. The fastening force is set to be appropriately smaller than the fastening force between the projection 4 of the cover 2 and the groove 8 of the shaft portion 12 of the barrel. In addition, the capless seal shown in FIGS. 4 and 5 does not require the lid 11 described above. Further, between the cover 2 and the shaft portion 12, rotation stopping and positioning means are appropriately provided so that the orientation of the printing portion 17 is constant.

[0011]

[Action]

 The seal unit of the present invention is configured as described above, the cover 2 is detachably fixed to the shaft portion 12 of the barrel by appropriate force, and the printing body 16 can be easily attached at the customer stage. In addition, the printing body can be replaced. 4 and 5 show an example of using the capless seal stamp, the lid portion 60 covers the printing body 37 as shown in FIG. At the time of imprinting, when the cap 53 is gripped and the rear end of the crown portion 56 is knocked (shifting the axis) with a finger, the seal unit 1a moves forward in conjunction with the shaft cylinder 50, and the corner portion 41 comes to the inner surface of the lid portion 60. The lid 60 is expanded while making contact, and the printing body 37 is exposed from the opening 64 of the cap 53, and in this state, the marking is performed. (See FIG. 5) In order to house the seal unit 1a again and close the lid 60, the knock may be released.

[0012]

[Effect of the device]

 The structure and operation of the seal stamp unit of the present invention are as described above, the structure is simpler than the conventional one, and the printing body can be easily attached at the stage of the customer, and the cost can be reduced. Further, it is not necessary to stock a large amount of stamp units as in the conventional case, and it is sufficient to supply the printed characters easily. In addition, customers can easily exchange printed materials for quick response.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a main part showing an embodiment of a seal stamp unit of the present invention.

FIG. 2 is a perspective view showing component development of a seal stamp unit which is a conventional example.

FIG. 3 is a vertical cross-sectional view of a main part showing a state of attachment to a shaft cylinder of a conventional example.

FIG. 4 is a perspective view of a main part showing a usage example in which a seal stamp unit is incorporated in a capless seal stamp, in a state in which a print body is stored.

FIG. 5 is a perspective longitudinal cross-sectional view of an essential part showing a state in which a printed body is exposed by a capless seal stamp.

[Explanation of symbols]

 1 Seal unit 1a Seal unit 2 Cover 3 Corner 4 Protrusion 5 Shaft cylinder 6 Vent hole 7 Partition 8 Groove 9 Step 10 Groove 11 Lid 12 Shaft 13 Upper surface 14 Cushion 15 Ink occlusion body 16 Printed body 17 Printing section 18 Hole 19 Vent 20 Protrusion 30 Joint Shaft 31 Flange 32 Shaft 33 Vent 34 Leg 35 Cushion 36 Ink Storage 37 Printed 38 Print 39 Cover 40 Hole 41 Corner 42 Lid 43 Vent 44 Vent 45 Shaft 50 Shaft cylinder 51 Projection portion 52 Slit 53 Cap 54 Step portion 55 Shaft portion 56 Crown crown 57 Groove 58 Base portion 59 Groove 60 Lid portion 61 Spring 62 Rod shaft portion 63 Rod shaft portion 64 Opening portion 65 Return spring

Claims (1)

[Scope of utility model registration request] 1. A partition 7 is provided at the upper end of the shaft cylinder 5 together with a vent hole 6.
A cover 2 made of a resin molded product having a shaft portion 12 having a groove 8 on a side surface, a hole 18 and a corner portion 3 at an upper end, and a protrusion 4 at an inner hole portion at a lower end. The protrusion 4 is elastically fixed to the groove 8 to form a chamber between the inside of the corner 3 and the upper surface 13 of the partition 7, and the printing portion 17 is exposed in the hole 18 in the chamber. A stamp unit in which the printing body 16 is stored and held.