TWI225451B - Method and device for retaining transmission structure of a refill of a ball point pen - Google Patents

Abstract

Disclosed is a method and device for retaining transmission structure of a refill of a ball point pen. On a top edge of a socket of a transmission structure of the refill, a retractable resilient device is integrally formed with the socket, such that when retaining posts of a driving body move to return sections of slots formed in the socket, the socket is retained in placed due to the tension of the retractable resilient device so as to prevent retraction of the refill in writing. The device is formed at the top edge of the socket with two or more annular slots. The lower and upper slots are provided with symmetrical tabs orienting towards different directions to provide proper resilience.

Description

1225451 __ Case No. 92102047_ Year Month __ — V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a "positioning device for the driving structure of ballpoint pen refills", especially a kind of pen Method and device for positioning core to prevent it from retracting improperly when writing out. According to the prior art, the transmission structure of the existing rotating ballpoint pen refills is usually provided with a hollow sleeve (1), a transmission body (2), a refill (3), and a rotating drum (4) as shown in the first figure. ), Pen tube (5) and pen cap (6), wherein the sleeve (1) is provided with a generally V-shaped cut groove (11), and the transmission body (2) is provided with a snap ring ( 21), after the transmission body (2) is sleeved on the sleeve (1), its clamping post (21) can be exposed through the cut groove (11), and the transmission body (2) is driven by the pen cap (6) to rotate Shi 'post (21) can be moved up and down along the groove (11), so that the pen core (3) locked to the transmission body (2) is protruded from the bottom end of the pen tube (5) for writing or retracting Keep it in the pen tube (5) for carrying. The conventional transmission structure is to prevent the pen core (3) from retracting due to the return of the card only when the writing state is written. 'Usually, the bending section of the groove (1 1) is set with a large dog to form a stop.' The card post (2 丨) is prevented from returning upward, but this method cannot effectively prevent the retraction of the refill (3).

One by one. Two books ... The child has a moving body (2) through a spring (22) (not shown), and the card post (21) is positioned by the tension of the spring (22), so that although it can improve the first ~ Figure f shows the lack of transmission structure. It is cheap, and the market is quite competitive. Adding components requires additional costs. The fL industry has become an additional cost burden, and the relative reduction in profits has yet to be effectively improved.

Shang

[Summary of the invention] The main purpose of the construction is to provide a ballpoint pen core to the refill core: shrink the ballpoint pen core when writing to form a positioning device with K # right, " f It is attached to the top edge of the sleeve of the conventional transmission structure. Ϊ M w-a telescopic elastic device integrally formed by the sleeve, so that when the card post moves to the ditch bending section, it is positioned by the tension of the telescopic elastic device. To prevent the refill from retracting.

As mentioned, the positioning device is provided with two or more grooves on the top edge of the sleeve, and symmetrical connecting pieces are arranged in the grooves, and the connecting pieces in the upper and lower positions are in different directions from each other. Arrange for proper elasticity. In the positioning device described above, the symmetrical link pieces ′ provided in the upper and lower positions of the grooves are in different directions of 90 degrees from each other to form better flexibility. [Embodiment] ^ Please refer to the third and fourth figures at the same time. The present invention is mainly provided with a hollow ball sleeve (1), a transmission body (2), a pen core (3), a rotary drum (4) and a pen of a general ballpoint pen. The tube (5) and the pen cap (6) are also provided with a roughly ν-shaped cut groove (11) on the sleeve (1), and a clamping post (21) is arranged on the bottom edge of the transmission body (2) to make the transmission body (2) After being sleeved on the sleeve (1), its post (2 1) is exposed by the groove (11) and moved up and down along the groove (u) to form the pen core (3) for writing Or retracted in the pen tube (5) to facilitate carrying; the top edge of the sleeve (1) is provided with a telescopic elastic device (100) that is integrally formed with the sleeve (1), in this embodiment The device (100) is provided with two or more spaced annular grooves (1 2), and the grooves (1 2) are provided with

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Case No. 92102047 V. Description of the invention (3) Symmetrical connecting piece (13), in which (13) is a connecting piece in a different direction (the groove on the upper and lower positions of 〇2) ^, X 丄; The embodiment is 90 degrees different from each other: :), to form appropriate elasticity, so that the card post ⑴) along the .f fold section of the groove (::: groove 剖), through the groove (12). The multi-top transmission body ⑺ forms a positioning groove to prevent the card post ⑵) from returning to prevent the refill (3) from shrinking when writing. Please refer to the fifth, sixth and seventh figures at the same time. When the present invention is in use, when the transmission body (2) is driven by the pen cap to rotate, the clamping post (21) moves down the groove (11) of the sleeve (1). The refill (3) is slowly extended (as shown in the fifth figure), and when the post (21) is moved to the pointed part (ln) of the groove (11), the refill (3) is fully extended , And the telescopic elastic device (丨 〇〇) provided on the top edge of the sleeve (1) is squeezed by the top edge of the transmission body (2) to cause contraction (as shown in the sixth figure), and when the transmission body (2) continues Turning the 'clamping post (2 1) moves to the bending section through the pointed part (111). In this way, the telescopic elastic device (100) will be stretched because the transmission body (2) is no longer squeezed. The elastic tension of the telescoping elastic device (100) holds the transmission body (2), so that the post (21) is positioned at the bent section of the cut groove (Π) to prevent the refill (3) from being generated during writing. Improper withdrawal. In summary, the present invention uses a telescopic elastic device provided in a sleeve to prevent the ball pen from retracting when writing, which is a practical design. It is a novel invention and is proposed according to law. The patent application was examined by Qijun Bureau, and the patent was granted as early as possible.

1225451 _Case No. 92102047_ 年月 日 _ «_ Brief description of the drawing [Illustration of the drawing] The representative picture is the third picture. The first and second figures are three-dimensional exploded views of the transmission structure of a conventional ballpoint pen refill. The third figure is an exploded perspective view of the present invention. The fourth figure is a perspective view of the present invention. The fifth, sixth, and seventh diagrams are diagrams of operation examples of the present invention. [Illustration of drawing number] (1) sleeve (11) cut groove (111) pointed protrusion (1 2) groove (13) connecting piece (2) transmission body (21) card post (3) refill (4) Revolver (5) Pen tube (6) Pen cap (22) Spring (100) Telescopic elastic device

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Claims (1)

1225451 _Case No. 92102047_Year Month Date _ «_ VI. Application for Patent Scope 1. A" Positioning Device for Ball Pen Refill Transmission Structure ", which is mainly provided with a sleeve, and the sleeve is provided with a V-shaped profile. Groove, so that a transmission body with a clamping column at the bottom edge is placed on the sleeve, and the clamping column can be exposed through the cut groove, and the transmission body is locked with a core, so that when the transmission body rotates, the clamping column can follow the sleeve. The cutting groove of the cylinder moves up and down to make the pen core extend from the pen tube for writing or retract into the pen tube. It is characterized in that the top edge of the sleeve is provided with a telescopic elastic device to make the transmission body stuck. When the column moves along the sleeve cut groove to its bending section, the elastic tension of the telescopic elastic device abuts against the transmission body to form the positioning of the card column to prevent the refill from retracting. 2. A "Positioning device for driving structure of ballpoint pen core", which is mainly located on the top edge of the sleeve of the transmission structure, and is provided with two or more grooves, and symmetrical grooves are provided in the grooves. And the connecting pieces set in the upper and lower grooves are arranged in different directions from each other to form proper elasticity. 3. As described in the "Positioning device for ballpoint pen core transmission structure" described in item 2 of the scope of the patent application, in which the connecting pieces provided in the upper and lower position grooves are in different directions of 90 degrees from each other as optimal. Page 9