JP2010082979A - Cassette for thermal transfer sheet - Google Patents

Cassette for thermal transfer sheet Download PDF

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JP2010082979A
JP2010082979A JP2008254485A JP2008254485A JP2010082979A JP 2010082979 A JP2010082979 A JP 2010082979A JP 2008254485 A JP2008254485 A JP 2008254485A JP 2008254485 A JP2008254485 A JP 2008254485A JP 2010082979 A JP2010082979 A JP 2010082979A
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protrusion
core
supply
winding
holding
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JP5228767B2 (en
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Hideki Matsubayashi
林 秀 樹 松
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cassette for a thermal transfer sheet capable of fixing firmly a lid body of the cassette to a core holding body, without generating a burr in a distal end of a projected part provided in the lid body. <P>SOLUTION: The cassette 10 for the thermal transfer sheet is provided with the core holding body 11 having a winding core holding part 13, a supply core holding part 12, and a pair of connecting parts 17, and the pair of lid bodies (winding side lid body 21 and supply side lid body 20) for covering the winding core holding part 13 and the supply core holding part 12 of the core holding body 11. The winding side lid body 21 has four of the first projected parts 25 engaged with the winding core holding part 13. Each of the first projected parts 25 has the first base body 25a, and the first distal end protrusion 25b formed in a distal end of the first base body 25a, and engaged with the winding core holding part 13. The first distal end protrusion 25b of each of the first projected parts 25 has a thickness corresponding to a clearance between the first locking part 23b and the first grasping part 23a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は熱転写シートからなるシート体を収納する熱転写シート用のカセットに関する。   The present invention relates to a thermal transfer sheet cassette that houses a sheet body made of a thermal transfer sheet.

従来より巻取コアと、供給コアと、熱転写シートとを有するシート体が知られている。
このシート体は巻取コアの保持部と、供給コアの保持部を有するコア保持体と、このコア保持体を覆う蓋体とを備えた熱転写シート用カセット内に収納される（例えば特許文献１参照）。 Conventionally, a sheet body having a winding core, a supply core, and a thermal transfer sheet is known.
The sheet body is stored in a thermal transfer sheet cassette including a winding core holding portion, a core holding body having a supply core holding portion, and a lid body covering the core holding body (for example, Patent Document 1). reference).

カセット内では供給コアから熱転写シートが繰り出され、巻取コアに巻き取られる。この間、熱転写シートがサーマルヘッドにより加熱されて熱転写シートから画像が受像シートに転写される。   In the cassette, the thermal transfer sheet is fed out from the supply core and wound around the winding core. During this time, the thermal transfer sheet is heated by the thermal head, and the image is transferred from the thermal transfer sheet to the image receiving sheet.

ところで、熱転写シート用カセットのコア保持体を覆う蓋体はコア保持体に対し、一般に、蓋体に設けた突起部とコア保持体に設けた係止機構とを係合させることにより固定される（例えば特許文献１参照）。この際、保持体に設けた係止機構（開口）の幅が蓋体に設けた突起部の幅に対して大きすぎると、係合の強度が不十分となり、このため、カセットの落下などにより容易にカセットの蓋体が外れ、カセットから熱転写シートが散乱するという不都合が生じる。一方、保持体に設けた係止機構の幅が蓋体に設けた突起部の幅に対して小さすぎると、係合させるのが困難となり、また、係合の際に蓋体に設けた突起部の先が潰れてバリが発生するという不都合が生じる。
特開２００５−８１６６８号公報 By the way, the lid that covers the core holder of the thermal transfer sheet cassette is generally fixed to the core holder by engaging a protrusion provided on the lid with a locking mechanism provided on the core holder. (For example, refer to Patent Document 1). At this time, if the width of the locking mechanism (opening) provided on the holding body is too large with respect to the width of the protrusion provided on the lid, the strength of the engagement becomes insufficient. There is a disadvantage that the cassette lid easily comes off and the thermal transfer sheet is scattered from the cassette. On the other hand, if the width of the locking mechanism provided on the holding body is too small with respect to the width of the protrusion provided on the lid, it is difficult to engage, and the projection provided on the lid at the time of engagement. There is a disadvantage that the tip of the part is crushed and burrs are generated.
JP 2005-81668 A

本発明はこのような点を考慮してなされたものであり、蓋体に設けた突起部の先にバリを発生させること無く、カセットの蓋体をコア保持体に強固に固定することができる熱転写シート用カセットを提供することを目的とする。   The present invention has been made in consideration of such points, and the lid of the cassette can be firmly fixed to the core holder without generating a burr at the tip of the protrusion provided on the lid. An object of the present invention is to provide a thermal transfer sheet cassette.

本発明は、巻取コアと、供給コアと、巻取コアと供給コアとに巻き付けられサーマルヘッドにより加熱される熱転写シートとからなるシート体を収納する熱転写シート用カセットにおいて、巻取コアの保持部と、供給コアの保持部と、これら巻取コアの保持部と供給コアの保持部を連結する一対の連結部とを有するコア保持体と、巻取コアの保持部を覆う巻取側蓋体と、供給コアの保持部を覆う供給側蓋体と、を備え、巻取側蓋体および供給側蓋体のいずれか一方の蓋体は、対応する巻取コアの保持部または供給コアの保持部と係合する突起部を有し、一方の蓋体の突起部は、基体と、基体の先端に形成され、対応する巻取コアの保持部または供給コアの保持部と係合する先端突起とを有し、一方の蓋体に対応する巻取コアの保持部または供給コアの保持部は、突起部の先端突起に係合する係止部と、係止部との間で突起部の基体を把持する把持部とを有し、突起部の先端突起は、係止部と把持部との間の隙間に対応する厚みを有し、突起部の基体は、突起部の先端突起が係止部に係合した際、把持部に当接する厚みを有することを特徴とする熱転写シート用カセットである。   The present invention relates to a thermal transfer sheet cassette for storing a winding core, a supply core, and a thermal transfer sheet that is wound around the winding core and the supply core and heated by a thermal head. A core holding body having a portion, a supply core holding portion, a pair of connecting portions connecting the holding core holding portion and the supply core holding portion, and a winding side cover that covers the holding portion of the winding core And a supply-side lid that covers the holding portion of the supply core, and either one of the winding-side lid and the supply-side lid has a corresponding winding core holding portion or supply core Protruding portions that engage with the holding portions, and the protruding portions of one lid are formed on the base and the tip of the base and engage the corresponding winding core holding portion or the supply core holding portion. A take-up core holding part or supply corresponding to one lid. The holding portion of the core has a locking portion that engages with the tip protrusion of the protruding portion, and a gripping portion that holds the base of the protruding portion between the locking portions. The protrusion has a thickness corresponding to the gap between the gripping portion and the base of the protrusion has a thickness that abuts the gripping portion when the tip protrusion of the protrusion engages the locking portion. This is a cassette for thermal transfer sheet.

本発明は、巻取側蓋体および供給側蓋体の双方に突起部が設けられ、巻取コアの保持部および供給コアの保持部は、いずれも突起部の先端突起に係合する係止部と、係止部との間で突起部の基体を把持する把持部とを有することを特徴とする熱転写シート用カセットである。   In the present invention, both the winding-side lid and the supply-side lid are provided with protrusions, and both the holding part of the winding core and the holding part of the supply core engage with the tip protrusions of the protrusions. A thermal transfer sheet cassette having a grip portion for gripping the base of the protruding portion between the portion and the locking portion.

以上のように本発明によれば、突起部の先端突起は、係止部と把持部との間の隙間に対応する厚みを有している。このため、突起部の先端突起を、係止部と把持部との間の隙間に容易に挿入することができる。このことにより、突起部の先端突起を係止部と把持部との間の隙間に挿入する際に、先端突起が潰されてバリが発生するのを防ぐことができる。
また本発明によれば、突起部の基体は、突起部の先端突起が係止部に係合した際、把持部に当接する厚みを有している。このため、突起部を係止部と把持部との間で確実に挟持することができ、これにより、突起部を係止部と把持部との間で強固に固定させることができる。このことにより、熱転写シート用カセットの落下などにより容易に蓋体が外れるのを防ぐことができる。 As described above, according to the present invention, the tip protrusion of the protrusion has a thickness corresponding to the gap between the locking portion and the grip portion. For this reason, the front-end | tip protrusion of a projection part can be easily inserted in the clearance gap between a latching | locking part and a holding part. As a result, when the tip projection of the projection is inserted into the gap between the locking portion and the gripping portion, it is possible to prevent the tip projection from being crushed and generating burrs.
According to the invention, the base of the protrusion has a thickness that comes into contact with the grip when the tip protrusion of the protrusion is engaged with the locking portion. For this reason, a projection part can be reliably clamped between a latching | locking part and a holding part, and, thereby, a projection part can be firmly fixed between a latching part and a gripping part. As a result, it is possible to prevent the lid from being easily removed due to dropping of the thermal transfer sheet cassette.

以下、図面を参照して本発明の実施の形態について説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１乃至図５は、本発明による熱転写シート用カセットの一実施の形態を示す図である。
ここで、図１は、本実施の形態における熱転写シート用カセットを示す斜視図であり、図２は、本実施の形態における熱転写シート用カセットを示す平面図である。また図３は、本実施の形態において、係合された状態のコア保持体と蓋体とを示す側面図であり、図４は、本実施の形態における熱転写シートとロッドとサーマルヘッドとの関係を示す図である。また図５（ａ）（ｂ）（ｃ）は、本実施の形態における第１突起部と第１係止機構との関係を示す図である。
また図６（ａ）（ｂ）（ｃ）は、比較例における第１突起部と第１係止機構との関係を示す図であり、図７（ａ）（ｂ）（ｃ）は、他の比較例における第１突起部と第１係止機構との関係を示す図である。 1 to 5 are views showing an embodiment of a thermal transfer sheet cassette according to the present invention.
Here, FIG. 1 is a perspective view showing the thermal transfer sheet cassette in the present embodiment, and FIG. 2 is a plan view showing the thermal transfer sheet cassette in the present embodiment. 3 is a side view showing the core holding body and the lid body in an engaged state in the present embodiment, and FIG. 4 is a relationship between the thermal transfer sheet, the rod, and the thermal head in the present embodiment. FIG. 5A, 5B, and 5C are views showing the relationship between the first protrusion and the first locking mechanism in the present embodiment.
FIGS. 6A, 6B, and 6C are views showing the relationship between the first protrusion and the first locking mechanism in the comparative example, and FIGS. It is a figure which shows the relationship between the 1st projection part and a 1st latching mechanism in the comparative example of.

図１乃至図５に示すように、熱転写シート用カセット１０は巻取コア３と、供給コア２と、巻取コア３と供給コア２とに巻付けられた熱転写シート５とからなるシート体１を収納するものである。   As shown in FIGS. 1 to 5, the thermal transfer sheet cassette 10 is a sheet body 1 including a winding core 3, a supply core 2, and a thermal transfer sheet 5 wound around the winding core 3 and the supply core 2. Is to be stored.

熱転写シート用カセット１０内の熱転写シート５は、供給コア２から繰り出されて巻取コア３に巻取られ、この間熱転写シート５はサーマルヘッド５ｂにより加熱され、受像シート５ａに画像が転写される（図４）。   The thermal transfer sheet 5 in the thermal transfer sheet cassette 10 is unwound from the supply core 2 and taken up by the take-up core 3. During this time, the thermal transfer sheet 5 is heated by the thermal head 5b and the image is transferred to the image receiving sheet 5a ( FIG. 4).

なお、巻取コア３および供給コア２は、いずれもフランジ３ｂ、２ｂを有している。また巻取コア３および供給コア２は、いずれも位置決め用のラチェット３ａ、２ａを有している。   The winding core 3 and the supply core 2 both have flanges 3b and 2b. The winding core 3 and the supply core 2 both have positioning ratchets 3a and 2a.

このような構成からなるシート体１を収納する熱転写シート用カセット１０は、巻取コア３を保持する巻取コアの保持部１３と、供給コア２を保持する供給コアの保持部１２と、これら巻取コアの保持部１３と供給コアの保持部１２とを連結する一対の連結部１７とを有するコア保持体１１と、このコア保持体１１の巻取コアの保持部１３と供給コアの保持部１２とを覆う一対の蓋体（巻取側蓋体２１、供給側蓋体２０）とを備えている。   The thermal transfer sheet cassette 10 that stores the sheet body 1 having such a configuration includes a winding core holding portion 13 that holds the winding core 3, a supply core holding portion 12 that holds the supply core 2, and these A core holding body 11 having a pair of connecting parts 17 for connecting the holding part 13 of the take-up core and the holding part 12 of the supply core, and the holding part 13 of the winding core of the core holding body 11 and the holding of the supply core And a pair of lid bodies (winding side lid body 21 and supply side lid body 20) that cover the portion 12.

このうち巻取側蓋体２１は巻取コアの保持部１３を覆うものであり、供給側蓋体２０は供給コアの保持部１２を覆うものである。   Among these, the winding side cover 21 covers the holding part 13 of the winding core, and the supply side cover 20 covers the holding part 12 of the supply core.

また、巻取側蓋体２１は、図１に示すように、巻取コアの保持部１３と係合する第１突起部２５を複数個（本実施の形態では４個）有し、供給側蓋体２０は、供給コアの保持部１２と係合する第２突起部２４を複数個（本実施の形態では４個）有している。このうち各第１突起部２５は、第１基体２５ａと、第１基体２５ａの先端に形成され、巻取コアの保持部１３と係合する第１先端突起２５ｂとを有している。同様に各第２突起部２４は、第２基体２４ａと、第２基体２４ａの先端に形成され、供給コアの保持部１２と係合する第２先端突起２４ｂとを有している。   Further, as shown in FIG. 1, the winding-side lid 21 has a plurality of (four in the present embodiment) first protrusions 25 that engage with the holding portion 13 of the winding core, and the supply side The lid 20 has a plurality of (four in the present embodiment) second protrusions 24 that engage with the holding portion 12 of the supply core. Among these, each 1st projection part 25 has the 1st base | substrate 25a and the 1st front-end | tip protrusion 25b which is formed in the front-end | tip of the 1st base | substrate 25a and engages the holding | maintenance part 13 of a winding core. Similarly, each 2nd projection part 24 has the 2nd base 24a and the 2nd tip projection 24b formed in the tip of the 2nd base 24a, and engaging with holding part 12 of a supply core.

一方、図２および図３に示すように、巻取コアの保持部１３は、各第１突起部２５の第１先端突起２５ｂに係合する第１係止部２３ｂと、第１係止部２３ｂとの間で第１突起部２５の第１基体２５ａを把持する第１把持部２３ａとを有している。同様に、供給コアの保持部１２は、各第２突起部２４の第２先端突起２４ｂに係合する第２係止部２２ｂと、第２係止部２２ｂとの間で第２突起部２４の第２基体２４ａを把持する第２把持部２２ａとを有している。
このうち第１把持部２３ａと、第１係止部２３ｂとにより第１係止機構２３が構成されており、第２把持部２２ａと、第２係止部２２ｂとにより第２係止機構２２が構成されている。 On the other hand, as shown in FIGS. 2 and 3, the winding core holding portion 13 includes a first locking portion 23 b that engages with the first tip protrusion 25 b of each first protruding portion 25, and a first locking portion. The first holding portion 23a that holds the first base body 25a of the first protrusion 25 is provided between the first protruding portion 25 and the first holding portion 23b. Similarly, the holding portion 12 of the supply core has a second protrusion 24 between the second locking portion 22b and the second locking portion 22b that engages with the second tip protrusion 24b of each second protrusion 24. And a second gripping portion 22a for gripping the second base 24a.
Among these, the 1st holding part 23a and the 1st locking part 23b comprise the 1st locking mechanism 23, and the 2nd holding part 22a and the 2nd locking part 22b are the 2nd locking mechanisms 22. Is configured.

また、各第１突起部２５の第１先端突起２５ｂは、第１係止部２３ｂと第１把持部２３ａとの間の隙間２３ｃに対応する厚みを有している。同様に、各第２突起部２４の第２先端突起２４ｂは、第２係止部２２ｂと第２把持部２２ａとの間の隙間２２ｃに対応する厚みを有している。   Further, the first tip protrusion 25b of each first protrusion 25 has a thickness corresponding to the gap 23c between the first locking portion 23b and the first gripping portion 23a. Similarly, the second tip protrusion 24b of each second protrusion 24 has a thickness corresponding to the gap 22c between the second locking portion 22b and the second grip 22a.

さらに、各第１突起部２５の第１基体２５ａは、第１突起部２５の第１先端突起２５ｂが第１係止部２３ｂに係合した際、第１把持部２３ａに当接する厚みを有している。この場合、図５に示すように第１基体２５ａは、その先端側に向うにつれて厚みが減少するという先細形状を有することになる。同様に、各第２突起部２４の第２基体２４ａは、第２突起部２４の第２先端突起２４ｂが第２係止部２２ｂに係合した際、第２把持部２２ａに当接する厚みを有している。この場合も、第２基体２４ａは、その先端側に向うにつれて厚みが減少するという先細形状を有することになる。   Furthermore, the first base body 25a of each first protrusion 25 has a thickness that comes into contact with the first grip part 23a when the first tip protrusion 25b of the first protrusion 25 is engaged with the first locking part 23b. is doing. In this case, as shown in FIG. 5, the first base body 25a has a tapered shape in which the thickness decreases toward the tip side. Similarly, the second base 24a of each second protrusion 24 has a thickness that makes contact with the second grip 22a when the second tip protrusion 24b of the second protrusion 24 engages the second locking portion 22b. Have. Also in this case, the second base 24a has a tapered shape in which the thickness decreases as it goes toward the tip side.

また図２に示すように、コア保持体１１の巻取コアの保持部１３は、巻取コア３の軸３ｃを保持するとともに上方に開口した開口軸受１３ａを有し、供給コアの保持部１２は供給コア２の軸２ｃを保持するとともに上方に開口した開口軸受１２ａを有している。   As shown in FIG. 2, the take-up core holding portion 13 of the core holding body 11 has an open bearing 13 a that holds the shaft 3 c of the take-up core 3 and opens upward, and holds the supply core holding portion 12. Has an opening bearing 12a that holds the shaft 2c of the supply core 2 and opens upward.

開口軸受１３ａ、１２ａは、いずれも上方へ開口するとともに、上方から嵌め込まれる巻取コア３の軸３ｃおよび供給コア２の軸２ｃを嵌合して支持するようになっている。   Each of the open bearings 13a and 12a opens upward, and is adapted to fit and support the shaft 3c of the winding core 3 and the shaft 2c of the supply core 2 fitted from above.

また、コア保持体１１の一対の連結部１７間に、熱転写シート５に当接してこの熱転写シート５を回転自在に支持して案内するロッド３０が設けられている。ロッド３０は熱転写シート５に対して、サーマルヘッド５ｂと反対側に配置されており、かつロッド３０は熱転写シート５に対してコア保持体１１と反対側へ配置されている（図４）。   Further, a rod 30 is provided between the pair of connecting portions 17 of the core holder 11 so as to contact the thermal transfer sheet 5 and rotatably support and guide the thermal transfer sheet 5. The rod 30 is disposed on the side opposite to the thermal head 5b with respect to the thermal transfer sheet 5, and the rod 30 is disposed on the side opposite to the core holder 11 with respect to the thermal transfer sheet 5 (FIG. 4).

またロッド３０は、その両端部がコア保持体１１の各連結部１７に設けられた一対の軸受３１、３１により回転自在に保持されている。各軸受３１は、それぞれ連結部１７から巻取コア３方向に突出している。またロッド３０は、巻取コア３側に配置されるとともに、熱転写シート５の駆動時に熱転写シート５によりコア保持体１１の外方（図１における上方）へ押圧される。   Further, both ends of the rod 30 are rotatably held by a pair of bearings 31, 31 provided at each connecting portion 17 of the core holder 11. Each bearing 31 protrudes from the connecting portion 17 toward the winding core 3. The rod 30 is disposed on the winding core 3 side, and is pressed outward (upward in FIG. 1) by the thermal transfer sheet 5 when the thermal transfer sheet 5 is driven.

次にこのような構成からなる本実施の形態の作用について説明する。   Next, the operation of the present embodiment having such a configuration will be described.

まず、巻取コア３と供給コア２と熱転写シート５からなるシート体１をコア保持体１１に装着する。この場合、巻取コアの保持部１３と供給コアの保持部１２に、巻取コア３と供給コア２を各々挿着する。   First, the sheet body 1 including the winding core 3, the supply core 2, and the thermal transfer sheet 5 is attached to the core holder 11. In this case, the winding core 3 and the supply core 2 are respectively inserted into the winding core holding part 13 and the supply core holding part 12.

上述のように、巻取コアの保持部１３の開口軸受１３ａと、供給コアの保持部１２の開口軸受１２ａは、いずれも上方へ開口しているので、巻取コア３の軸３ｃと供給コア２の軸２ｃを上方から開口軸受１３ａ、１２ａに嵌込むだけで、巻取コア３の軸３ｃと供給コア２の軸２ｃを開口軸受１３ａ、１２ａに容易に挿着することができる。   As described above, since the opening bearing 13a of the winding core holding portion 13 and the opening bearing 12a of the supply core holding portion 12 are both open upward, the shaft 3c of the winding core 3 and the supply core The shaft 3c of the winding core 3 and the shaft 2c of the supply core 2 can be easily inserted into the opening bearings 13a and 12a simply by fitting the second shaft 2c into the opening bearings 13a and 12a from above.

次に、熱転写シート５の上方からコア保持体１１の軸受３１内にロッド３０を装着する。   Next, the rod 30 is mounted in the bearing 31 of the core holder 11 from above the thermal transfer sheet 5.

次に、巻取側蓋体２１の各第１突起部２５を、巻取コアの保持部１３の対応する第１係止機構２３にそれぞれ嵌込み、これによって、巻取コアの保持部１３に巻取側蓋体２１を固定する。この場合、図５（ａ）（ｂ）に示すように、各第１突起部２５の第１先端突起２５ｂは、第１係止機構２３の第１係止部２３ｂと第１把持部２３ａとの間の隙間の間隔ｓに対応する厚みａ１を有している。このため、第１突起部２５の第１先端突起２５ｂを、第１係止機構２３の第１係止部２３ｂと第１把持部２３ａとの間の隙間に容易に挿入することができる。 Next, each first protrusion 25 of the winding-side lid 21 is fitted into the corresponding first locking mechanism 23 of the winding core holding portion 13, whereby the winding core holding portion 13 is engaged with the winding core holding portion 13. The winding side lid 21 is fixed. In this case, as shown in FIGS. 5 (a) and 5 (b), the first tip protrusion 25b of each first protrusion 25 is formed by the first locking part 23b and the first gripping part 23a of the first locking mechanism 23. It has a thickness a 1 which corresponds to the interval s of the gap between the. For this reason, the 1st front-end | tip protrusion 25b of the 1st projection part 25 can be easily inserted in the clearance gap between the 1st latching | locking part 23b of the 1st latching mechanism 23, and the 1st holding | grip part 23a.

その後、第１突起部２５の第１先端突起２５ｂが第１係止機構２３の第１係止部２３ｂと第１把持部２３ａとの間の隙間に完全に挿入されると、第１突起部２５の第１先端突起２５ｂが第１係止機構２３の第１係止部２３ｂに係合する。この際、図５（ｃ）に示すように、第１突起部２５の第１基体２５ａは、第１把持部２３ａに当接する厚みｂ１を有している。このため、第１突起部２５を第１把持部２３ａと第１係止部２３ｂとの間で堅固に挟持して、第１突起部２５を第１係止機構２３に強固に固定させることができる。 Thereafter, when the first tip protrusion 25b of the first protrusion 25 is completely inserted into the gap between the first locking part 23b of the first locking mechanism 23 and the first gripping part 23a, the first protrusion The 25 first tip protrusions 25 b engage with the first locking portions 23 b of the first locking mechanism 23. At this time, as shown in FIG. 5 (c), the first substrate 25a of the first protrusion 25 has a thickness b 1 in contact with the first grip 23a. For this reason, the 1st projection part 25 is firmly clamped between the 1st holding part 23a and the 1st latching | locking part 23b, and the 1st projection part 25 can be firmly fixed to the 1st latching mechanism 23. it can.

次に、供給側蓋体２０の各第２突起部２４を、供給コアの保持部１２の対応する第２係止機構２２にそれぞれ嵌込み、これによって、供給コアの保持部１２に供給側蓋体２０を固定する。この場合も、第１突起部２５および第１係止機構２３の場合と同様に、各第２突起部２４の第２先端突起２４ｂは、第２係止機構２２の第２係止部２２ｂと第２把持部２２ａとの間の隙間の間隔に対応する厚みを有している。このため、第２突起部２４の第２先端突起２４ｂを、第２係止機構２２の第２係止部２２ｂと第２把持部２２ａとの間の隙間に容易に挿入することができる。
また、第２突起部２４の第２先端突起２４ｂが第２係止機構２２の第２係止部２２ｂと第２把持部２２ａとの間の隙間に完全に挿入されると、第２突起部２４の第２先端突起２４ｂが第２係止機構２２の第２係止部２２ｂに係合する。この際、第２突起部２４の第２基体２４ａは、第２把持部２２ａに当接する厚みを有している。このため、第２突起部２４を第２把持部２２ａと第２係止部２２ｂとの間で堅固に挟持して、第２突起部２４を第２係止機構２２に強固に固定させることができる。 Next, each of the second protrusions 24 of the supply-side lid 20 is fitted into the corresponding second locking mechanism 22 of the supply core holding portion 12, whereby the supply-side lid is fitted to the supply core holding portion 12. The body 20 is fixed. Also in this case, as in the case of the first protrusion 25 and the first locking mechanism 23, the second tip protrusion 24 b of each second protrusion 24 is connected to the second locking part 22 b of the second locking mechanism 22. It has a thickness corresponding to the gap between the second grip portion 22a. For this reason, the 2nd front-end | tip protrusion 24b of the 2nd protrusion part 24 can be easily inserted in the clearance gap between the 2nd latching | locking part 22b of the 2nd latching mechanism 22, and the 2nd holding | grip part 22a.
When the second tip protrusion 24b of the second protrusion 24 is completely inserted into the gap between the second locking part 22b and the second gripping part 22a of the second locking mechanism 22, the second protrusion The 24 second tip protrusions 24 b engage with the second locking portions 22 b of the second locking mechanism 22. At this time, the second base 24a of the second protrusion 24 has a thickness that comes into contact with the second grip 22a. Therefore, it is possible to firmly fix the second protrusion 24 to the second locking mechanism 22 by firmly holding the second protrusion 24 between the second gripping portion 22a and the second locking portion 22b. it can.

このように本実施の形態によれば、各第１突起部２５の第１先端突起２５ｂは、第１係止部２３ｂと第１把持部２３ａとの間の隙間の間隔ｓに対応する厚みａ１を有している。このため、第１突起部２５の第１先端突起２５ｂを、第１係止機構２３の第１係止部２３ｂと第１把持部２３ａとの間の隙間に容易に挿入することができる。このことにより、第１突起部２５の第１先端突起２５ｂを第１係止部２３ｂと第１把持部２３ａとの間の隙間に挿入する際に、第１先端突起２５ｂが潰されてバリが発生するのを防ぐことができる。
また、各第２突起部２４の第２先端突起２４ｂは、第２係止機構２２の第２係止部２２ｂと第２把持部２２ａとの間の隙間の間隔に対応する厚みを有している。このことにより、第２突起部２４の第２先端突起２４ｂを第２係止部２２ｂと第２把持部２２ａとの間の隙間に挿入する際に、第２先端突起２４ｂが潰されてバリが発生するのを防ぐことができる。 Thus, according to the present embodiment, the first tip protrusion 25b of each first protrusion 25 has a thickness a corresponding to the gap s between the first locking portion 23b and the first gripping portion 23a. 1 For this reason, the 1st front-end | tip protrusion 25b of the 1st projection part 25 can be easily inserted in the clearance gap between the 1st latching | locking part 23b of the 1st latching mechanism 23, and the 1st holding | grip part 23a. Accordingly, when the first tip protrusion 25b of the first protrusion 25 is inserted into the gap between the first locking portion 23b and the first gripping portion 23a, the first tip protrusion 25b is crushed and burrs are generated. It can be prevented from occurring.
Further, the second tip protrusion 24b of each second protrusion 24 has a thickness corresponding to the gap interval between the second locking part 22b of the second locking mechanism 22 and the second gripping part 22a. Yes. As a result, when the second tip protrusion 24b of the second protrusion 24 is inserted into the gap between the second locking portion 22b and the second grip portion 22a, the second tip protrusion 24b is crushed and burrs are generated. It can be prevented from occurring.

また本実施の形態によれば、各第１突起部２５の第１基体２５ａは、第１突起部２５の第１先端突起２５ｂが第１係止機構２３の第１係止部２３ｂに係合した際、第１把持部２３ａに当接する厚みｂ１を有している。このため、第１突起部２５を第１係止機構２３に強固に固定させることができる。このことにより、熱転写シート用カセット１０の落下などにより容易に巻取側蓋体２１が外れ、熱転写シート用カセット１０から熱転写シート５が散乱するという不都合が生じるのを防ぐことができる。
また、各第２突起部２４の第２基体２４ａは、第２突起部２４の第２先端突起２４ｂが第２係止機構２２の第２係止部２２ｂに係合した際、第２把持部２２ａに当接する厚みを有している。このことにより、熱転写シート用カセット１０の落下などにより容易に供給側蓋体２０が外れるのを防ぐことができる。 Further, according to the present embodiment, the first base 25 a of each first protrusion 25 has the first tip protrusion 25 b of the first protrusion 25 engaged with the first locking part 23 b of the first locking mechanism 23. In this case, it has a thickness b 1 that comes into contact with the first gripping portion 23a. For this reason, the first protrusion 25 can be firmly fixed to the first locking mechanism 23. As a result, it is possible to prevent the inconvenience that the take-up side lid 21 is easily detached due to dropping of the thermal transfer sheet cassette 10 and the thermal transfer sheet 5 is scattered from the thermal transfer sheet cassette 10.
Further, the second base 24 a of each second protrusion 24 has a second gripping portion when the second tip protrusion 24 b of the second protrusion 24 is engaged with the second locking portion 22 b of the second locking mechanism 22. The thickness abuts on 22a. As a result, it is possible to prevent the supply-side lid 20 from being easily detached due to dropping of the thermal transfer sheet cassette 10 or the like.

次に、本願発明の効果を比較例と比較して説明する。比較例として、図６に、第１突起部２５の第１基体２５ａが、第１基体２５ａの長さ方向のすべての位置において、第１把持部２３ａに当接する厚みｂ２を有している場合における、第１突起部２５と第１係止機構２３の関係を示す。図６に示す比較例では、第１突起部２５の第１基体２５ａは、第１基体２５ａの長さ方向のすべての位置において第１把持部２３ａに当接する厚みｂ２を有している。このため、図６（ａ）に示すように、第１突起部２５の第１先端突起２５ｂは、第１係止部２３ｂと第１把持部２３ａとの間の隙間の間隔ｓを超える厚みａ２を有することになる。このことにより、図６（ｂ）に示すように、第１突起部２５の第１先端突起２５ｂを第１係止部２３ｂと第１把持部２３ａとの間の隙間に挿入する際、第１突起部２５の第１先端突起２５ｂは、第１係止部２３ｂと第１把持部２３ａとにより押圧される。この結果、図６（ｃ）に示すように、第１突起部２５の第１先端突起２５ｂにバリ２５ｃが形成される。この場合、第１係止部２３ｂと第１先端突起２５ｂの間にバリ２５ｃが介在することにより、第１突起部２５が第１係止部２３ｂと第１把持部２３ａとの間の隙間により深く挿入されることになる。このことにより、巻取コアの保持部１３に固定される巻取側蓋体２１の位置が、所定の位置からずれるという不都合が生じる。
他の比較例として、図７に、第１突起部２５の第１先端突起２５ｂは、第１係止部２３ｂと第１把持部２３ａとの間の隙間ｓに対応する厚みａ３を有し、かつ、第１突起部２５の第１基体２５ａは、第１基体２５ａの長さ方向のすべての位置において一定の厚みｂ３を有している場合における、第１突起部２５と第１係止機構２３の関係を示す。この場合、図７（ｃ）に示すように、第１突起部２５の第１先端突起２５ｂが第１係止機構２３の第１係止部２３ｂに係合した際、第１基体２５ａの厚みｂ３は、第１係止部２３ｂと第１把持部２３ａとの間の隙間の間隔ｓよりも小さい。このため、熱転写シート用カセット１０の落下などにより容易に巻取側蓋体２１が外れ、熱転写シート用カセット１０から熱転写シート５が散乱するという不都合が生じる可能性がある。
これに対して本願発明によれば、上述のように、第１突起部２５の第１基体２５ａは、第１突起部２５の第１先端突起２５ｂが第１係止機構２３の第１係止部２３ｂに係合した際、第１把持部２３ａに当接する厚みｂ１を有している。また第１基体２５ａは、その先端側に向うにつれて厚みが減少するという先細形状を有しており、このため、第１突起部２５の第１先端突起２５ｂは、第１係止部２３ｂと第１把持部２３ａとの間の隙間の間隔ｓに対応する厚みａ１を有することになる。このことにより、第１突起部２５の第１先端突起２５ｂを第１係止部２３ｂと第１把持部２３ａとの間の隙間に挿入する際に、第１先端突起２５ｂが潰されてバリが発生するのを防ぐことができる。 Next, the effect of the present invention will be described in comparison with a comparative example. As a comparative example, in FIG. 6, the first base 25 a of the first protrusion 25 has a thickness b 2 that contacts the first gripping portion 23 a at all positions in the length direction of the first base 25 a. The relationship between the 1st projection part 25 and the 1st latching mechanism 23 in a case is shown. In the comparative example shown in FIG. 6, the first substrate 25a of the first protrusion 25 has a contact with thickness b 2 to the first gripping portion 23a at all positions in the length direction of the first substrate 25a. For this reason, as shown to Fig.6 (a), the 1st front-end | tip protrusion 25b of the 1st projection part 25 is the thickness a exceeding the space | interval s of the clearance gap between the 1st latching | locking part 23b and the 1st holding | grip part 23a. Will have 2 . Accordingly, as shown in FIG. 6B, when the first tip protrusion 25b of the first protrusion 25 is inserted into the gap between the first locking part 23b and the first grip part 23a, the first The first tip protrusion 25b of the protrusion 25 is pressed by the first locking part 23b and the first grip part 23a. As a result, as shown in FIG. 6C, a burr 25 c is formed on the first tip protrusion 25 b of the first protrusion 25. In this case, the burr 25c is interposed between the first locking portion 23b and the first tip protrusion 25b, so that the first protrusion 25 is caused by the gap between the first locking portion 23b and the first gripping portion 23a. It will be inserted deeply. As a result, there arises an inconvenience that the position of the winding side lid 21 fixed to the holding portion 13 of the winding core is shifted from a predetermined position.
As another comparative example, in FIG. 7, the first projecting end 25b of the first protrusion 25 has a thickness a 3 corresponding to the gap s between the first engaging portion 23b and the first gripping portion 23a and the first base 25a of the first protrusion 25, when it has a constant thickness b 3 at all positions in the length direction of the first substrate 25a, a first engagement with the first protrusion 25 The relationship of the stop mechanism 23 is shown. In this case, as shown in FIG. 7C, when the first tip protrusion 25b of the first protrusion 25 is engaged with the first locking part 23b of the first locking mechanism 23, the thickness of the first base 25a is increased. b 3 is smaller than the spacing s of the gap between the first locking portion 23b and the first gripping portion 23a. For this reason, there is a possibility that the winding-side lid 21 is easily detached due to the dropping of the thermal transfer sheet cassette 10 and the thermal transfer sheet 5 is scattered from the thermal transfer sheet cassette 10.
On the other hand, according to the invention of the present application, as described above, the first base 25a of the first protrusion 25 has the first tip protrusion 25b of the first protrusion 25 to be the first lock of the first lock mechanism 23. when engaged with the part 23b, and has a thickness b 1 in contact with the first grip 23a. In addition, the first base 25a has a tapered shape in which the thickness decreases toward the front end side. For this reason, the first front end protrusion 25b of the first protrusion 25 has the first locking portion 23b and the first engagement portion 23b. It has a thickness a 1 corresponding to the gap s between the first gripping portion 23 a and the gap s. Accordingly, when the first tip protrusion 25b of the first protrusion 25 is inserted into the gap between the first locking portion 23b and the first gripping portion 23a, the first tip protrusion 25b is crushed and burrs are generated. It can be prevented from occurring.

なお、本実施の形態において、巻取側蓋体２１および供給側蓋体２０の双方が、それぞれ第１突起部２５および第２突起部２４を有している例を示した。しかしながら、これに限られることはなく、巻取側蓋体２１および供給側蓋体２０のいずれか一方の蓋体のみが、第１突起部２５または第２突起部２４を有し、対応する巻取コアの保持部１３または供給コアの保持部１２が、第１係止機構２３または第２係止機構２２を有していてもよい。   In the present embodiment, an example is shown in which both the winding-side lid 21 and the supply-side lid 20 have a first projection 25 and a second projection 24, respectively. However, the present invention is not limited to this, and only one of the winding-side lid 21 and the supply-side lid 20 has the first protrusion 25 or the second protrusion 24, and the corresponding winding. The holding core holding part 13 or the supply core holding part 12 may have the first locking mechanism 23 or the second locking mechanism 22.

また、本実施の形態において、巻取側蓋体２１は、巻取コアの保持部１３と係合する第１突起部２５を４個有し、供給側蓋体２０は、供給コアの保持部１２と係合する第２突起部２４を４個有している例を示した。しかしながら、これに限られることはなく、巻取側蓋体２１は、巻取コアの保持部１３と係合する第１突起部２５を少なくとも１個有していればよく、供給側蓋体２０は、供給コアの保持部１２と係合する第２突起部２４を少なくとも１個有していればよい。   In the present embodiment, the winding-side lid 21 has four first protrusions 25 that engage with the holding portion 13 of the winding core, and the supply-side lid 20 is the holding portion of the supply core. The example which has four 2nd protrusion parts 24 engaged with 12 was shown. However, the present invention is not limited to this, and the winding-side lid body 21 only needs to have at least one first protrusion 25 that engages with the holding portion 13 of the winding core. May have at least one second protrusion 24 that engages with the holding portion 12 of the supply core.

図１は、本実施の形態における熱転写シート用カセットを示す斜視図。FIG. 1 is a perspective view showing a thermal transfer sheet cassette in the present embodiment. 図２は、本実施の形態における熱転写シート用カセットを示す平面図。FIG. 2 is a plan view showing a thermal transfer sheet cassette in the present embodiment. 図３は、本実施の形態において、係合された状態のコア保持体と蓋体とを示す側面図。FIG. 3 is a side view showing the core holding body and the lid body in an engaged state in the present embodiment. 図４は、本実施の形態における熱転写シートとロッドとサーマルヘッドとの関係を示す図。FIG. 4 is a diagram showing a relationship among a thermal transfer sheet, a rod, and a thermal head in the present embodiment. 図５（ａ）（ｂ）（ｃ）は、本実施の形態における第１突起部と第１係止機構との関係を示す図。FIGS. 5A, 5B, and 5C are views showing the relationship between the first protrusion and the first locking mechanism in the present embodiment. 図６（ａ）（ｂ）（ｃ）は、比較例における第１突起部と第１係止機構との関係を示す図。6A, 6B, and 6C are views showing the relationship between the first protrusion and the first locking mechanism in the comparative example. 図７（ａ）（ｂ）（ｃ）は、他の比較例における第１突起部と第１係止機構との関係を示す図。FIGS. 7A, 7B, and 7C are views showing the relationship between the first protrusion and the first locking mechanism in another comparative example.

符号の説明Explanation of symbols

１ シート体
２ 供給コア
３ 巻取コア
５ 熱転写シート
１０ 熱転写シート用カセット
１１ コア保持体
１２ 供給コアの保持部
１２ａ 開口軸受
１３ 巻取コアの保持部
１３ａ 開口軸受
１７ 連結部
２０ 供給側蓋体
２１ 巻取側蓋体
２１ａ 平坦部
２２ 第２係止機構
２２ａ 第２把持部
２２ｂ 第２係止部
２２ｃ 第２係止機構の隙間
２３ 第１係止機構
２３ａ 第１把持部
２３ｂ 第１係止部
２３ｃ 第１係止機構の隙間
２４ 第２突起部
２４ａ 第２基体
２４ｂ 第２先端突起
２５ 第１突起部
２５ａ 第１基体
２５ｂ 第１先端突起
３０ ロッド
３１ 軸受 DESCRIPTION OF SYMBOLS 1 Sheet body 2 Supply core 3 Winding core 5 Thermal transfer sheet 10 Thermal transfer sheet cassette 11 Core holder 12 Supply core holding portion 12a Opening bearing 13 Rewinding core holding portion 13a Opening bearing 17 Connecting portion 20 Supply side lid 21 Winding side lid 21a Flat portion 22 Second locking mechanism 22a Second gripping portion 22b Second locking portion 22c Clearance of second locking mechanism 23 First locking mechanism 23a First gripping portion 23b First locking portion 23c Clearance of first locking mechanism 24 Second protrusion 24a Second base 24b Second tip protrusion 25 First protrusion 25a First base 25b First tip protrusion 30 Rod 31 Bearing

Claims (2)

巻取コアと、供給コアと、巻取コアと供給コアとに巻き付けられサーマルヘッドにより加熱される熱転写シートとからなるシート体を収納する熱転写シート用カセットにおいて、
巻取コアの保持部と、供給コアの保持部と、これら巻取コアの保持部と供給コアの保持部を連結する一対の連結部とを有するコア保持体と、
巻取コアの保持部を覆う巻取側蓋体と、
供給コアの保持部を覆う供給側蓋体と、を備え、
巻取側蓋体および供給側蓋体のいずれか一方の蓋体は、対応する巻取コアの保持部または供給コアの保持部と係合する突起部を有し、
一方の蓋体の突起部は、基体と、基体の先端に形成され、対応する巻取コアの保持部または供給コアの保持部と係合する先端突起とを有し、
一方の蓋体に対応する巻取コアの保持部または供給コアの保持部は、突起部の先端突起に係合する係止部と、係止部との間で突起部の基体を把持する把持部とを有し、
突起部の先端突起は、係止部と把持部との間の隙間に対応する厚みを有し、
突起部の基体は、突起部の先端突起が係止部に係合した際、把持部に当接する厚みを有することを特徴とする熱転写シート用カセット。 In the thermal transfer sheet cassette for storing a sheet body composed of a winding core, a supply core, and a thermal transfer sheet wound around the winding core and the supply core and heated by a thermal head,
A core holding body having a holding part for the winding core, a holding part for the supply core, and a pair of connecting parts for connecting the holding part for the winding core and the holding part for the supply core;
A winding side cover that covers the holding portion of the winding core;
A supply-side lid that covers the holding portion of the supply core,
Either one of the winding-side lid and the supply-side lid has a protrusion that engages with the corresponding winding core holding portion or the supply core holding portion,
The protrusion of one lid has a base and a tip protrusion that is formed at the tip of the base and engages with the corresponding holding part of the winding core or the holding part of the supply core,
The holding part of the take-up core or the holding part of the supply core corresponding to the one lid body holds the base of the protruding part between the engaging part and the engaging part engaged with the tip protrusion of the protruding part. And
The tip protrusion of the protrusion has a thickness corresponding to the gap between the locking part and the grip part,
The thermal transfer sheet cassette according to claim 1, wherein the base of the protrusion has a thickness that abuts against the grip when the tip protrusion of the protrusion engages with the engaging portion. 巻取側蓋体および供給側蓋体の双方に突起部が設けられ、
巻取コアの保持部および供給コアの保持部は、いずれも突起部の先端突起に係合する係止部と、係止部との間で突起部の基体を把持する把持部とを有することを特徴とする請求項１に記載の熱転写シート用カセット。 Protrusions are provided on both the winding side lid and the supply side lid,
Each of the winding core holding portion and the supply core holding portion has a locking portion that engages with the tip protrusion of the protruding portion, and a gripping portion that holds the base of the protruding portion between the locking portions. The thermal transfer sheet cassette according to claim 1.
JP2008254485A 2008-09-30 2008-09-30 Thermal transfer sheet cassette Expired - Fee Related JP5228767B2 (en)

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