JP6968343B2 - Date stamp - Google Patents

Description

The present invention relates to a date stamp in which a number on a date printing unit is changed by a rotation operation of a dial, and more particularly to a date stamp configured so that the dial can be exposed from an outer cylinder to change the printing date.

Conventionally, various types of date stamps have become widespread. In a general date stamp, the numbers on the date stamps of the corresponding dates are changed by rotating a plurality of dials provided on the main body. For example, in the stamp disclosed in Patent Document 1, a dial for changing the date is stored in the outer cylinder.

Japanese Patent No. 371462

According to the seal described in Patent Document 1, when changing the date, either the outer cylinder or the main body is rotated in one direction to disengage these engagements, and the main body is pulled out from the outer cylinder to operate the dial. It was necessary to expose it to the possible position.

It is an object of the present invention to provide a date stamp such that the dial can be exposed from the outer cylinder by a simple operation and the printing date can be easily changed by the dial.

In order to solve the above-mentioned problems, the present invention has a main body having a stamp surface at the lower end portion and having a dial for varying the date printing portion of the stamp surface, an inner frame body that slidably supports the main body, and the main body. A date stamp including at least an outer cylinder accommodating the inner frame body and an elastic member that constantly exerts an elastic force on the inner frame body in the outer cylinder, and the inner cylinder is triggered by a predetermined operation. It is a date stamp that ejects the main body together with the frame from the outer cylinder and exposes the dial to an operable position.

In the date stamp, it is preferable that the main body and the inner frame are discharged from the outer cylinder by the elastic force of the elastic member.

Further, the date stamp further includes a rotary head that rotatably fits to the outer cylinder, and the first cylinder portion of the main body engages with the second cylinder portion of the rotary head so that the main body is outside the outer cylinder. It is prevented from coming off from the cylinder, and by rotating the rotary head to a predetermined position, the first cylinder portion and the second cylinder portion are disengaged, and the elastic force of the elastic member disengages the main body and the main body. It is preferable that the inner frame body is discharged from the outer cylinder.

According to the present invention, the dial can be exposed from the outer cylinder by a simple operation, whereby the printing date can be easily changed.

It is an external perspective view of a date stamp. It is a front view of a date stamp. It is an exploded perspective view of a date stamp. It is the figure which looked at the cross section of the upper cylinder part of the date stamp main body from the top. It is the figure which looked at the short cylinder part of the inner frame body from the top. It is the figure which looked at the cylindrical part of a rotary head from the bottom. It is the figure which looked at the middle cylinder member from the top. It is a vertical sectional view of a date stamp. (A) is a side view of the date stamp in the initial state. (B) is a side view of the date stamp at the time of stamping. It is a side view of the lock mechanism in the state where the seal lock is released. FIG. 10 is a cross-sectional view taken along the line XI-XI in FIG. FIG. 10 is a side view of a lock mechanism showing a short cylindrical portion and a middle cylinder member further broken. It is a vertical cross-sectional view of the date stamp at the time of stamping. It is a side view of the date stamp in the stamp locked state. It is a side view of the lock mechanism in the seal lock state. FIG. 15 is a cross-sectional view taken along the line XVI-XVI in FIG. (A) is a side view of the date stamp at the time of stamping. (B) is a side view of the date stamp when the date is changed. It is a side view of the lock mechanism in the date change lock release state. FIG. 18 is a cross-sectional view taken along the line XIX-XIX in FIG. FIG. 18 is a side view of a lock mechanism showing a middle cylinder member further broken. It is a vertical sectional view of the date stamp at the time of changing the date.

Hereinafter, the date stamp 1 which is a preferred embodiment of the present invention will be described in detail with reference to the drawings.
(Structure of date stamp)
FIG. 1 is an external perspective view of a date stamp 1 according to the present embodiment, and FIG. 2 is a front view thereof. Further, FIG. 3 is an exploded perspective view for explaining the internal configuration of the date stamp 1. With reference to these figures, the date stamp 1 is made of a hollow substantially cylindrical outer cylinder 30, a date stamp main body (hereinafter, also simply referred to as “main body”) 10 stored in the outer cylinder 30, and a transparent resin material. It is provided with a cylindrical cover portion 80, an opening / closing portion 90 that can open and close the front portion of the tubular cover portion 80, and a bottomed cylindrical cap 70 that closes the upper opening of the outer cylinder 30.
In the present specification, the "axial direction" means a direction that vertically penetrates the center of the date stamp 1. Further, in the present specification, the upper and lower sides are described with the cap 70 side of the date stamp 1 as "upper" and the tubular cover portion 80 side in which the stamp surface 11 is stored as "lower".

In the outer cylinder 30, as shown in FIG. 3, a main body 10, an inner frame body 20 that slidably stores and supports the main body 10, and a rotary that fits with a cap 70 at the upper part of the outer cylinder 30. A coil spring 50 interposed between the head 60, the middle cylinder member 40 into which the cylindrical portion 62 of the rotary head 60 is inserted, the short cylindrical portion 21 of the inner frame body 20 and the countersunk flange portion 61 of the rotary head 60. And are incorporated.

The date stamp main body 10 has a substantially square cylinder-shaped housing, and a rubber stamp surface 11 is detachably provided at the lower end portion of the square cylinder portion 12 extending downward from the housing. For example, the name of the user of the date stamp 1 is stamped on the rubber stamp surface 11. Further, the rubber stamp surface 11 has a long hole portion 13 that penetrates the stamp surface so as to be laterally divided, and a date printing portion 19D is provided behind the long hole portion 13. The date marked by the date printing unit 19D is changed by rotating a plurality of dials 17 provided in the substantially central portion of the main body 10.

An upper cylindrical portion 14 extending upward is formed integrally with the housing on the upper portion of the main body 10. Here, FIG. 4 is a cross-sectional view of the portion of the upper cylindrical portion 14 as viewed from above. As shown in the figure, the outer peripheral portion of the upper cylindrical portion 14 of the main body 10 is a groove of vertically long outer grooves 141a, 141b, 141c, 141d that are parallel to each other in the axial direction and have different widths in the circumferential direction. A pattern is formed. The upper cylindrical portion 14 of the main body 10 corresponds to the "first cylinder portion" of the lock mechanism described later.

The central portion of the upper cylindrical portion 14 is hollow, and the core body 18 is slidably mounted through the hollow. A flange portion 18a is formed at the upper end portion of the core body 18, and the core body 18 is always upward from the upper cylindrical portion 14 due to the elastic force of the coil spring 16 interposed between the upper cylindrical portion 14 and the flange portion 18a. It is urged to protrude to. In the normal state where the main body 10 is attached to the outer cylinder 30 (when the date is not changed), the core body 18 is pushed into the upper cylindrical portion 14 by the rotary head 60 fitted to the outer cylinder 30. At a position where the date printing unit 19D enters the elongated hole portion 13, the stamp surfaces of the rubber stamp surface 11 and the date printing unit 19D coincide with each other. On the other hand, when the main body 10 is discharged from the outer cylinder 30, the presser of the core body 18 is released, and the date printing portion 19D connected to the core body 18 is released from the elongated hole portion 13 of the stamp surface 11 due to the elastic force of the coil spring 16. Move inside. This makes it possible to change the circumference of the date printing unit 19D by operating the dial 17.

As shown in FIG. 3, the inner frame body 20 has connecting portions 23 and 23 that connect the upper short cylindrical portion 21, the lower annular end portion 22, and the short cylindrical portion 21 and the annular end portion 22 at four corners. It is composed of a resin member having, .... The four corners of the date stamp main body 10 are slidably supported inside the connecting portion 23. Further, the square tube portion 12 of the main body 10 is slidably supported inside the annular end portion 22 of the inner frame body 20. Then, in conjunction with the relative movement of the main body 10 and the inner frame body 20, the upper cylindrical portion 14 reciprocates in the short cylindrical portion 21, and the rubber stamp surface 11 reciprocates in the direction of approaching and separating from the annular end portion 22. It is configured to do. Further, the inner frame body 20 is housed in the outer cylinder 30 in a state where the outer peripheral portion of the upper cylindrical portion 14 and the outer peripheral portion of the annular end portion 22 are slidable on the inner wall portion of the outer cylinder 30.

The upper surface portion of the short cylindrical portion 21 is a spring receiving surface portion 21A that receives the coil spring 50. Here, FIG. 5 is a view of the portion of the short cylindrical portion 21 as viewed from above. As shown in the figure, on the inner wall of the upper surface portion of the short cylindrical portion 21, long upper inner peripheral grooves 211a and 211b are formed so as to face each other along the circumferential direction. Further, on the inner wall of the lower surface portion of the short cylindrical portion 21, lower inner peripheral grooves 212a and 212b are formed so as to face each other. The upper inner peripheral groove 211a and the lower inner peripheral groove 212a are slightly out of phase in the circumferential direction, and the vertical inner groove 213a is formed at the inner peripheral position sandwiched between these peripheral grooves. Similarly, the vertical inner groove 213b is formed at the inner peripheral position sandwiched between the upper inner peripheral groove 211b and the lower inner peripheral groove 212b. The short cylindrical portion 21 of the inner frame body 20 corresponds to the "fourth cylinder portion" of the lock mechanism.

The rotary head 60 has a countersunk flange portion 61 rotatably fitted to the upper portion of the outer cylinder 30 and a cylindrical portion 62 extending axially downward from the countersunk flange portion 61, and these are integrally molded. It is a resin member. Here, FIG. 6 is a view of the portion of the cylindrical portion 62 as viewed from below. As shown in the figure, on the outer peripheral surface of the cylindrical portion 62, vertically long protrusions 63a and 63b long in the axial direction are formed at peripheral positions facing each other. Further, on the lower end side of the inner wall of the cylindrical portion 62, inner short protrusions 64a, 64b, 64c, 64d having different widths in the circumferential direction are formed. The protrusion patterns of the inner short protrusions 64a to 64d correspond to the groove patterns of the vertically long outer grooves 141a to 141d of the upper cylindrical portion 14 described above. The cylindrical portion 62 of the rotary head 60 corresponds to the “second cylinder portion” of the lock mechanism.

The middle cylinder member 40 is a hollow tubular resin member. Here, FIG. 7 is a view of the middle cylinder member 40 as viewed from above. As shown in the figure, vertically long protrusions 41a and 41b long in the axial direction are formed on the outer peripheral surface of the middle cylinder member 40 so as to face each other. Further, vertical inner grooves 42a and 42b are formed on the inner wall at the peripheral position corresponding to the vertically elongated protrusions 41a and 41b. The middle cylinder member 40 corresponds to the "third cylinder portion" of the lock mechanism.

Next, the internal structure of the date stamp 1 will be described together with the above-mentioned procedure for assembling the component members, mainly with reference to the vertical sectional view of FIG.

As described above, the main body 10 is stored and supported in the inner frame body 20. In that state, the middle cylinder member 40 is first inserted into the short cylindrical portion 21 of the inner frame body 20. At this time, the middle cylinder member 40 can pass through the short cylindrical portion 21 while sliding by fitting the vertically long protrusions 41a and 41b into the vertical inner grooves 213a and 213b of the short cylindrical portion 21. .. Further, the middle cylinder member 40 is restricted from rotating at the slide position fitted to the short cylindrical portion 21, but is rotatable at the position where it completely passes through the short cylindrical portion 21 and slides to the shoulder of the main body 10. Become.

Next, one end of the coil spring 50 is housed in the countersunk flange portion 61 of the rotary head 60. Then, the cylindrical portion 62 of the rotary head 60 is inserted between the upper cylindrical portion 14 of the main body 10 and the middle cylinder member 40. At this time, the rotary head 60 is rotated to a position where the inner short protrusions 64a to 64d of the inner wall thereof fit into the vertically long outer grooves 141a to 141d of the upper cylindrical portion 14 of the main body 10, so that the rotary head 60 is attached to the main body 10. It can be inserted and removed. Further, in the middle cylinder member 40, the vertical inner grooves 42a and 42b of the inner wall thereof are appropriately rotated so as to match the positions of the cylindrical portions 62 of the rotary head 60, 63a and 63b, whereby the cylindrical portion 62 becomes the middle cylinder member. It can also be inserted into the 40.

At this rotation position where the cylindrical portion 62 of the rotary head 60 can be inserted into the middle cylinder member 40, the vertically long protrusions 41a and 41b of the middle cylinder member (third cylinder portion) 40 are short cylinders of the inner frame body 20. It is blocked by the lower inner peripheral grooves 212a and 212b of the portion (fourth cylinder portion) 21. As a result, the sliding between the main body 10 and the inner frame body 20 is locked with the middle cylinder member 40 sandwiched between them.

When the rotary head 60 is rotated slightly to the right while the cylindrical portion 62 of the rotary head 60 is inserted between the upper cylindrical portion 14 and the middle cylinder member 40 of the main body 10 in this way, the inner short protrusions 64a to 64d And the vertically long outer grooves 141a to 141d of the upper cylindrical portion 14 of the main body 10 are displaced from each other, and as a result, the rotary head 60 is prevented from coming off from the main body 10. Then, the rotary head 60 is further rotated to the right, and at the positions where the vertically elongated protrusions 41a and 41b of the middle cylinder member 40 reach the vertical inner grooves 213a and 213b of the short cylinder portion 21, the middle cylinder member 40 and the short cylinder portion 21 The lock with the (inner frame body 20) is released, and the inner frame body 20 is pushed back in the direction away from the rotary head 60 by the elastic force of the compressed coil spring 50.

In this state, the outer cylinder 30 is mounted from the stamp surface 11 side of the main body 10 and the inner frame body 20, and the dish-shaped flange portion 61 of the rotary head 60 is rotatably attached to the upper portion of the outer cylinder 30. Further, the cap 70 is attached by engaging the notch 71 with the convex piece portion 65 of the rotary head 60 so that the cap 70 can be rotated integrally with the rotary head 60.

The upper portion of the tubular cover portion 80 is fitted and attached to the annular end portion 22 of the inner frame body 20. Further, the opening / closing portion 90 is rotatably attached around the hinge portion 93 of the annular end portion 22. An ink pad holder 91 is formed inside the opening / closing portion 90, and the opening / closing portion 90 closes the tubular cover portion 80 when the stamp is not stamped, so that the ink pad 92 is held in the ink pad holder 91. Contact the rubber stamp surface 11, and ink is supplied to the stamp surface 11.

(Seal operation)
Next, the stamping operation by the date stamp 1 having the above configuration will be described. Here, FIG. 9A is a side view of the date stamp 1 in the initial state, and FIG. 9B is a side view at the time of stamping. Further, FIG. 10 is a side view showing a portion of the lock mechanism in a stampable state (stamping lock release state), in which the outer cylinder 30 and the countersunk flange portion 61 of the rotary head 60 are shown to be broken. There is. Further, FIG. 11 is a cross-sectional view taken along the line XI-XI in FIG.

The stamping by the date stamp 1 can be performed when the cap 70 is operated to the position marked as "stamping" in FIG. 9 (this is referred to as "stamping position"). As described above, the cap 70 and the rotary head 60 engage with each other and rotate integrally. In particular, as shown in FIG. 11, the vertically elongated protrusions 63a and 63b of the cylindrical portion (second cylinder portion) 62 of the rotary head 60 are fitted into the vertical inner grooves 42a and 42b of the middle cylinder member (third cylinder portion) 40, respectively. It fits. Therefore, when the cap 70 is rotated, the middle cylinder member (third cylinder portion) 40 also rotates in conjunction with the rotation operation.

In the above-mentioned "stamping position" of the cap 70, the vertically long protrusions 41a and 41b of the middle cylinder member (third cylinder portion) 40 are vertically inside the short cylindrical portion (fourth cylinder portion) 21 of the inner frame body 20. It coincides with the circumferential position of the grooves 213a and 213b. As a result, as shown in FIG. 10, the vertically elongated protrusions 41a and 41b can pass through the vertical inner grooves 213a and 213b, and the stamping operation becomes possible.

Further, FIG. 12 is a side view showing a portion of the lock mechanism in which the short cylindrical portion 21 (inner frame body 20) and the middle cylinder member 40 are further broken in FIG. As shown in the figure, the elastic force of the coil spring 50 housed in the dish-shaped flange portion 61 of the rotary head 60 acts on the spring receiving surface portion 21A of the short cylindrical portion 21, but the cylinder of the rotary head 60. The inner short protrusions 64a to 64d in the portion (second cylinder portion) 62 are engaged with the convex portion (the portion excluding the vertically long outer groove 141a to 141d) of the upper cylindrical portion (first cylinder portion) 14 of the date stamp main body 10. It fits. Therefore, the main body 10 and the inner frame body 20 are prevented from coming off from the outer cylinder 30 at the positions shown in FIG.

As described above, when the cap 70 is in the "stamping position", the relative circumference in which the middle cylinder member (third cylinder portion) 40 and the short cylinder portion (fourth cylinder portion) 21 (inner frame body 20) are slidable. There is a positional relationship. Further, since the inner frame body 20 is slidable with respect to the outer cylinder 30, the outer cylinder 30 can be moved downward against the elastic force of the coil spring 50.

Further, FIG. 13 is a vertical cross-sectional view of the date stamp 1 when the outer cylinder 30 is moved downward, that is, at the time of stamping. When the lower end of the tubular cover portion 80 is pressed against the stamping target surface P and the outer cylinder 30 is moved downward, the rotary head 60, the middle cylinder member 40, and the date stamp main body 10 connected to the outer cylinder 30 are also moved downward. At this time, the hinge portion 93 of the annular end portion 22 of the inner frame body 20 enters the notch portion 31 of the outer cylinder 30, and the opening / closing portion 90 opens forward. As a result, the rubber stamp surface 11 of the main body 10 and the date printing unit 19D come into contact with the stamp target surface P, and the stamp imprint (ink) is transferred to the stamp target surface P.

(Seal lock operation)
Next, the stamp locking operation of the date stamp 1 will be described. Here, FIG. 14 is a side view of the date stamp 1 for explaining the operation of the stamp lock. Further, FIG. 15 is a side view showing a portion of the lock mechanism in the stamped lock state, in which the outer cylinder 30 and the countersunk flange portion 61 of the rotary head 60 are shown in a broken state. Further, FIG. 16 is a cross-sectional view taken along the line XVI-XVI in FIG.

As shown in FIG. 14, when the cap 70 is rotated to the position marked "lock" (this is referred to as "stamp lock position"), the cylindrical portion (second cylinder) of the rotary head 60 is operated as described above. The portion) 62 and the middle cylinder member (third cylinder portion) 40 also rotate in conjunction with each other.

When the cap 70 is in the "stamping lock position", the vertically long protrusions 41a and 41b of the middle cylinder member (third cylinder portion) 40 are the upper inner peripheral grooves 211a and 211b of the short cylinder portion 21 (inner frame body 20). It reaches the end (see FIG. 16). As a result, the vertically elongated protrusions 41a and 41b are blocked by the steps of the upper inner peripheral grooves 211a and 211b, and for this purpose, the outer cylinder 30 and the rotary head 60 connected to the rotary head 60, the middle cylinder member 40 and the date stamp main body 10 are underneath. Movement is regulated (especially see Figure 15).

(Unlock operation for changing the date)
Next, the operation of unlocking (this is referred to as “date change unlocking”) for enabling the change and setting of the date printing unit 19D will be described. The change of the printing date in the date stamp 1 is performed by ejecting the main body 10 together with the inner frame body 20 from the outer cylinder 30 and exposing the dial 17 to an operable position. Here, FIG. 17 is a side view for explaining the operation of unlocking the date change. Further, FIG. 18 is a side view showing a portion of the lock mechanism in the date change lock unlocked state, in which the outer cylinder 30 and the countersunk flange portion 61 of the rotary head 60 are shown to be broken. Further, FIG. 19 is a cross-sectional view taken along the XIX-XIX line in FIG.

As shown in FIG. 17, when the cap 70 is rotated to the position marked "date change" (this is referred to as "date change unlock position") while the outer cylinder 30 is moved downward, the rotary head is operated. The cylindrical portion (second cylinder portion) 62 and the middle cylinder member (third cylinder portion) 40 of the 60 are also rotated in conjunction with each other, and the vertically elongated protrusions 41a and 41b of the middle cylinder member (third cylinder portion) 40 are inside. It reaches the ends of the lower inner peripheral grooves 212a and 212b of the short cylindrical portion (fourth cylinder portion) 21 of the frame body 20 (see FIGS. 18 and 19). As a result, the vertically elongated protrusions 41a and 41b are blocked by the steps of the lower inner peripheral grooves 212a and 212b, and therefore the relative movement (sliding) between the date stamp main body 10 and the inner frame body 20 is restricted (sliding). In particular, see FIG. 18).

FIG. 20 is a side view showing a portion of the locking mechanism by further breaking the middle cylinder member 40 in FIG. When the cap 70 is operated to the above-mentioned "date change lock release position", the protrusion pattern of the inner short protrusions 64a to 64d of the cylindrical portion (second cylinder portion) 62 of the rotary head 60 and the upper cylindrical portion of the main body 10 The groove patterns of the vertically long outer grooves 141a to 141d of the (first cylinder portion) 14 match in the circumferential direction. Therefore, at the moment when the cap 70 is rotated to this position, the date stamp main body 10 and the rotary head 60 are disengaged, and the elastic force of the compressed coil spring 50 causes the main body 10 and the inner frame body 20 to move. It is vigorously discharged downward (see FIG. 21). As a result, the dial 17 is exposed at an operable position.

Further, in the outer cylinder 30, the main body 10 is separated from the rotary head 60, and the holding of the core body 18 is released. As a result, the core 18 and the date marking mechanism (that is, the dial 17, the date printing belt 19, etc.) connected to the core 18 project upward from the main body 10 due to the elastic force of the coil spring 16. At the same time, the currently set date printing unit 19D moves inside the elongated hole portion 13 of the rubber stamp surface 11.

An endless date printing belt 19 is wound around the rotating shaft of each dial 17, and the date printing belt 19 is rotated by rotating the dial 17, and the number on the date printing unit 19D is the length of the rubber stamp surface 11. The variable display is sequentially displayed in the hole portion 13. That is, the date printing unit 19 of the desired date number can be displayed on the long hole unit 13 to set the printing date.

After setting the change of the print date, the date stamp main body 10 and the inner frame body 20 are pushed back into the outer cylinder 30, and the cap 70 is rotated from the "date change lock release position" to the "stamping position" in that state. By doing so, the date stamp 1 can be easily returned to the initial state (see FIG. 9A).

1 Date stamp 10 Date stamp body 11 Rubber stamp surface 12 Square cylinder part 13 Long hole part 14 Upper cylinder part (first cylinder part)
141a to 141d Vertical outer groove 16 Coil spring 17 Dial 18 Core body 18a Flange part 19 Date printing belt 19D Date printing part 20 Inner frame body 21 Short cylindrical part (fourth cylinder part)
21A Spring receiving surface portions 211a, 211b Upper inner peripheral groove 212a, 212b Lower inner peripheral groove 213a, 213b Vertical inner groove 22 Circular end 23 Connecting part 30 Outer cylinder 31 Notch part 40 Middle cylinder member (third cylinder part)
41a, 41b Vertical protrusions 42a, 42b Vertical inner groove 50 Coil spring 60 Rotary head 61 Countersunk flange 62 Cylindrical part (second cylinder part)
63a, 63b Vertical protrusions 64a to 64d Inner short protrusions 65 Convex piece 70 Cap 71 Notch 80 Cylindrical cover 90 Opening and closing 91 Ink pad holder 92 Ink pad 93 Hinge

Claims (3)

A main body having a stamp surface at the lower end and having a dial for varying the date printing portion of the stamp surface, an inner frame body slidably supporting the main body, and an outer cylinder accommodating the main body and the inner frame body. A date stamp having at least an elastic member that constantly exerts an elastic force on the inner frame in the outer cylinder.
A date stamp that ejects the main body together with the inner frame body from the outer cylinder and exposes the dial to an operable position at a predetermined operation. The date stamp according to claim 1, wherein the main body and the inner frame body are discharged from the outer cylinder by the elastic force of the elastic member. A rotary head that rotatably fits to the outer cylinder is further provided, and the main body is prevented from coming off from the outer cylinder by engaging the first cylinder portion of the main body with the second cylinder portion of the rotary head. Ori,
By rotating the rotary head to a predetermined position, the first cylinder portion and the second cylinder portion are disengaged, and the elastic force of the elastic member causes the main body and the inner frame to engage with the outer cylinder. The date stamp according to claim 1, which is discharged from.

Images