1. Field of the Invention
The present invention relates to a tape dispenser, and more particularly to a correction tape dispenser that has a front cover and a head wounded by a correction tape and mounted retractably in the front cover. Using the correction tape dispenser is easy and convenient.
2. Description of Related Art
A conventional tape dispenser has a casing, a cover and a tape-output assembly. The tape-output assembly is mounted in the casing and has a reel of a correction tape and a head. The head is wound by the reel of the correction tape and extends out from the casing to stick a section a coating film of the correction tape to a paper sheet as the head presses against the paper sheet. The cover is mounted detachably on the casing and covers the head to keep dust from being accumulated on the coating film of the correction tape on the head. However, the cover is missed easily to expose the head and the correction tape in the air so dust is accumulated on the coating film and causes the coating film to adhere hardly to a paper sheet.
An improved correction tape dispenser has a casing, a reel of a correction tape, a head and a press button. The head is mounted retractably on the casing. The press button is mounted on the casing and connects to the head so pushing the pushing button extends out the head from the casing. However, a user holding the correction tape dispenser with one hand cannot easily push the button.
To overcome the shortcomings, the present invention provides a correction tape dispenser to mitigate or obviate the aforementioned problems.
The main objective of the invention is to provide a correction tape dispenser that has a front cover and a head wounded by a correction tape and mounted retractably in the front cover. Using the correction tape dispenser is easy and convenient.
A correction tape dispenser in accordance with the present invention comprises a front cover, a core assembly, an extending-and-retracting mechanism and a rear cover. The core assembly is mounted slidably in the front cover and has convex portion extending out of the front cover. The extending-and-retracting mechanism selectively drives the core assembly to hold forward or backward. The rear cover is mounted on the front cover.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
The front cover (10) is longitudinal and has a top, a bottom, two sides, a front end, a rear end, a cavity (11), a front opening (12), an open slot (13), a locking slot (16), two rail recesses (15) and a locking hole (14). The cavity (11) is defined in the cover (10) and has an inner surface. The front opening (12) is defined through the front end, communicates with the cavity (11) and has a flat upper inner surface, a flat lower inner surface and two curved side inner surfaces. The open slot (13) is defined in the rear end through the top and communicates with the cavity (11). The locking slot (16) is defined through the bottom. The rail recesses (15) are defined in the inner surface of the cavity (12) respectively on the sides. The locking hole (14) is defined through one of the sides.
The core assembly (20) is replaceable. When a correction tape on the core assembly (20) is entirely consumed, the core assembly (20) is replaced with a new one. The core assembly (20) extends in the rear end of the front cover (10) and is mounted detachably in the cavity (11) and has a top, a front end, a convex portion, a chassis (21) and a shell (22), a core (23), a connector (25) and a head (24). The convex portion protrudes from the top of the core assembly (20) and slidably extends through the open slot (13) in the front cover (10). The chassis (21) extends in the rear end of the front cover (10), is mounted detachably in the cavity (11) and has a top, a front end, a rear end and a convex segment formed on the top. The shell (22) is mounted on the chassis (21) and has a top, a front end, a rear end, a convex segment, a shoulder (221) and a mounting recess (27). The convex segment is formed on the top of the shell (22) and combines the convex segment on the chassis (21) to define the convex portion. The shoulder (221) is formed on the shell (22) and faces forward. The mounting recess (27) is defined in the front end of the core assembly (20), is defined in the front end of the shell (22) and has an inner surface. The core (23) is mounted on the chassis (21), is covered by the shell (22) and has a reel of a correction tape. The reel of the correction tape has a coating film that may adhere to a paper sheet. The connector (25) is resilient and capable of twisting, is mounted on the chassis (21) in front of the core (23), is mounted in the mounting recess (27) in the shell (22) and has a front end and a limit (26). The limit (26) is formed on and extends transversely from the connector (25) in the mounting recess (27), is tapered outward and selectively presses against the inner surface of the mounting recess (27) to limit an extent to which the connector (25) twists. The head (24) is mounted on the front end of the connector (25), is capable of rotating due to the twist of the connector (25) and is wound by the correction tape, as shown in
The slide bracket (40) is mounted slidably through the rear end in one of the rail recesses (15) in the cavity (11) in the front cover (10) and is mounted on and moves with the core assembly (20). The slide bracket (40) has a front end, a rear end, a front hook (41), a pair of rear hooks (42), an abutment board (43), an extension tab (44) and a clasp (45). The front hook (41) is formed on the front end of the slide bracket (40) and hooks on the shoulder (221) on the shell (22) of the core assembly (20). The rear hooks (42) are formed on the rear end of the slide bracket (40). The abutment board (43) is formed on the slide bracket (40) and abuts the rear end of the shell (22) of the core assembly (20). The extension tab (44) is formed on and extends backward from the abutment board (43) of the slide bracket (40). The clasp (45) is formed on the extension tab (44).
The extending-and-retracting mechanism (30) is mounted on the slide bracket (40), selectively drives the core assembly to hold forward or backward and has a shaft (31), a cylinder (32) and a bias element. The shaft (31) is hollow and tubular, is mounted slidably and rotatably around the extension tab (44) on the slide bracket (40) and has a front end, a rear end, an annular flange and multiple ridges (311). The annular flange is formed on and extends radially from the shaft (31) adjacent to the front end of the shaft (31) and has a rear end and multiple keys. The keys extend backward from the rear end of the annular flange and are divided into two sets of alternate keys. The ridges (311) are formed on and extend radially from the annular flange on the shaft (31), correspond respectively to the alternate keys of one set and each ridges (311) has a rear end with an inclined surface. The cylinder (32) is hollow and tubular, is mounted slidably and rotatably around the shaft (31), abuts the annular flange, is hooked and held by the clasp (45) on the extension tab (44) and has a front end, a rear end (322), multiple keyways and multiple alignment projections (321). The rear end (322) of the cylinder (32) is hooked and held by the clasp (45) to prevent the extending-and-retracting mechanism (30) from falling out of the slide bracket (40). The keyways are defined in the front end of the cylinder (32) and selectively engage respectively with the keys on the shaft (31). The alignment projections (321) are formed on and extend radially from the cylinder (32) and are arranged respectively between adjacent keyways. The bias element may be a spring (33), is mounted around the extension tab (44) and is mounted between the abutment board (43) on the slide bracket (40) and the front end of the shaft (31).
The rear cover (50) is longitudinal, is mounted on the front cover (10) and has a front end, a rear end, a chamber, a bottom locking hook (56), a pair of slide slots (58), a mounting hole, multiple ribs (51), multiple grooves (52), a strip (53) and a clip (57). The chamber is defined in the rear cover (50) and has a front inside wall (59), as shown in
The rear cap (61) is mounted on the rear end of the rear cover (50).
The spring (70) is mounted in the chamber in the rear cover (50) between the front inside wall (59) and the rear hooks (42) on the slide bracket (40) and is hooked by the rear hooks (42).
With reference to
With reference to
With reference to
With reference to
With reference to
A user may easily press the press button (60) or push the convex portion of the core assembly (20) to extend the head (24) out of the front cover (10). When the user presses the press button (60) or pushes the convex portion again, the head (24) retracts into the front cover to prevent dust from accumulating on the correction tape on the head. Therefore, using the correction tape dispenser is convenient and efficient.
Number | Name | Date | Kind |
---|---|---|---|
5346580 | Elges et al. | Sep 1994 | A |
6171397 | Mitsuya | Jan 2001 | B1 |
D475747 | Ono | Jun 2003 | S |
6730186 | Takahashi | May 2004 | B2 |
D544544 | Wu | Jun 2007 | S |
D547804 | Wu | Jul 2007 | S |
20090159217 | Sun | Jun 2009 | A1 |
20090185848 | Ushijima | Jul 2009 | A1 |
20090229763 | Lin | Sep 2009 | A1 |
Number | Date | Country | |
---|---|---|---|
20080173406 A1 | Jul 2008 | US |