Patent Description:
In a loom, a frame includes a pair of side frames, and the side frames are connected by a plurality of beam materials. Further, the loom includes a driving motor as a main driving source, and is configured to drive the main shaft by the driving motor. The driving motor is provided on one side frame side of the pair of side frames. Each side frame has a housing shape and has a space inside thereof.

A driving shaft to which the main shaft is connected is accommodated within the one side frame. The driving shaft is rotationally driven by the driving motor, so that the main shaft connected to the driving shaft is rotationally driven. The rotation of the driving shaft is also for driving the reed to swing. Specifically, a swing shaft for driving the reed to swing is also accommodated in the one side frame, and the swing shaft is connected to the driving shaft via a swing mechanism such as a cam mechanism and a crank mechanism. As described above, the loom is configured such that the swing shaft is swing-driven as the driving shaft is rotationally driven, whereby the reed is driven to swing.

As described above, the configuration (driving-force transmission mechanism) that connects the driving shaft and the driving motor for rotationally driving the driving shaft by the driving motor is disclosed in <CIT>. In the configuration disclosed in <CIT>, the driving shaft is provided so as to protrude from an outer side wall of the side frame. Although there is no description in <CIT>, the driving motor is provided in a form of being supported by a bracket attached to the side frame or the like on the outside of the side frame which accommodates the driving shaft. The driving motor and the driving shaft are connected by a pulley attached to each of an output shaft of the driving motor and an end of a portion protruding from a side surface of the side frame in the driving shaft, and a timing belt hung on both pulleys.

In the loom, maintenance of a swing mechanism or the like within the side frame may be performed due to aged deterioration, occurrence of a mechanical abnormality, or the like. Also as in the loom disclosed in <CIT>, in a general loom, in order to perform the maintenance, the side frame is configured of a frame body which is a main portion and of which at least a part (portion corresponding to the swing mechanism, or the like) of an outer surface is open, and a frame cover capable of being attached or detached to or from the frame body in a form of covering an portion opened as described above. The maintenance is performed after removing the frame cover from the frame body in the side frame.

However, in the loom of the related art, as the pulleys or the like in the loom disclosed in <CIT>, a driving-force transmission mechanism for transmitting rotation of the driving motor (output shaft) to the driving shaft is connected to the end of the portion protruding from the side surface of the side frame in the driving shaft. Therefore, as described above, in order to remove the frame cover in the side frame to perform the maintenance, it is necessary to release a connection state between the driving shaft and the driving-force transmission mechanism such as removing the pulleys from the driving shaft.

Therefore, in the maintenance of the loom of the related art, the connection state between the driving shaft and the driving-force transmission mechanism as described above should be released and perform reconnection along with the attachment/detachment of the frame cover, and an operation for the maintenance is complicated as a whole. In a case where the driving-force transmission mechanism is configured of the pulleys and the timing belt as in <CIT>, the tension of the timing belt should be readjusted along with the reconnection. In that case, the operation becomes more complicated. <CIT> describes a loom transmission mechanism, which comprises a main shaft driven by a driving motor, a beating-up mechanism transmission shaft and a shedding mechanism input shaft in transmission connection with the main shaft respectively, a driving mechanism for controlling axial movement of the main shaft and a stop device for stopping the beating-up mechanism transmission shaft, wherein the main shaft is axially and glidingly arranged in a box body; the output shaft of the driving motor, the beating-up mechanism transmission shaft and the shedding mechanism input shaft are provided with a driving gear, a beating-up driving gear and a shedding driving gear respectively; the main shaft is a double-gear shaft, the front end and the rear end of which are provided with a first gear and a second gear respectively; and the first gear is engaged with the driving gear, and the second gear is engaged with the beating-up driving gear and the shedding driving gear.

Therefore, an object of the present invention is to provide a structure of a loom in which an operation can be simplified since release of a connection state between a driving shaft and a driving-force transmission mechanism is not required in performing maintenance.

To achieve the above object, the present invention provides the loom as described above in which the driving-force transmission mechanism includes a driving-force transmission shaft that is provided so as to protrude from a side wall of the side frame while extending parallel to the driving shaft within a space of the side frame, the driving-force transmission shaft being connected to the driving motor on an end portion side protruding from the side frame, and a gear train that connects the driving-force transmission shaft and the driving shaft.

Further, the loom according to the present invention as described above, the driving-force transmission mechanism may include a driving gear train that is different from the gear train and is provided at a position separated from the side frame in the width direction, and an output shaft of the driving motor and the driving-force transmission shaft may be connected by the driving gear train. Furthermore, a space within the driving box accommodating the driving gear train may be independent of the space of the side frame.

According to the loom according to the present invention, in performing the maintenance, since the release of the connection state between the driving shaft and the driving-force transmission mechanism is not required, it is possible to simplify the operation for the maintenance. Specifically, in the loom according to the present invention, the driving-force transmission mechanism is configured such that the driving-force transmission shaft connected to the driving motor is connected to the driving shaft via the gear train within the side frame. Therefore, the frame cover can be removed without releasing the connection state between the driving shaft and the driving-force transmission mechanism. Therefore, according to the loom of the present invention configured as described above, by disposing the driving motor at an appropriate position, the operation of removing the frame cover, which should be performed for the maintenance, is simplified. As a result, the maintenance can be easily performed.

In such a loom according to the present invention, the connection configuration that connects the driving-force transmission shaft and the output shaft of the driving motor is the gear train (driving gear train), so that the driving-force transmission mechanism configured as described above is advantageous in terms of maintenance. Specifically, as the connection configuration, it is conceivable of a connection configuration that is performed via pulleys and a timing belt. However, in that case, an operation such as adjusting the tension of the timing belt is required. On the other hand, by using the driving gear train as the connection configuration, such an operation is not required. Therefore, according to the configuration, the driving-force transmission mechanism is advantageous in terms of maintenance.

Further, in a case where the connection configuration is the driving gear train, the space within the driving box accommodating the driving gear train is configured to be independent of the space within the side frame. Therefore, lubricating oil that reduces heat generation, wear, or the like of mechanical parts within each space can be freely selected on the driving box side and the side frame side. As a result, the lubricating oil used on the side frame side and the driving box side can be lubricating oil of a type suitable for the mechanical parts accommodated in the respective spaces.

Hereinafter, an embodiment (example) of a loom to which the present invention is applied will be described with reference to <FIG> and <FIG>.

In a loom <NUM>, a frame <NUM> includes a pair of housing-shaped side frames <NUM> and <NUM>, and the side frames <NUM> are connected by a plurality of beam materials. The loom <NUM> includes a driving motor <NUM>, and is configured to drive a main shaft <NUM> of the loom <NUM> by the driving motor <NUM>. The driving motor <NUM> is provided on one side frame <NUM> (hereinafter, referred to as "driving-side frame") side of the pair of side frames <NUM> and <NUM>.

The driving-side frame <NUM> is configured of a frame body <NUM> that is a main portion, and a frame cover <NUM> attached to the frame body <NUM>. Specifically, the frame body <NUM> is formed in a housing shape having a space therein, and a portion (portion corresponding to a swing mechanism <NUM> or the like described later in a width direction) in a side wall (outer wall portion) 14a, which is an outside in the width direction of the loom <NUM>, is open. The frame cover <NUM> is a member formed in a plate shape, and has a size capable of covering an opened portion (opening portion) 14c of the frame body <NUM>. The driving-side frame <NUM> is configured such that the frame cover <NUM> is attached to the frame body <NUM> in a form of covering the opening portion 14c. Therefore, the side wall (outer wall) 12a of the driving-side frame <NUM> that is the outside in the width direction is configured of the outer wall portion 14a of the frame body <NUM> and the frame cover <NUM> that covers the opening portion 14c thereof. The frame cover <NUM> is attached to the frame body <NUM> by using screw members (not illustrated) such as bolts, and the frame cover <NUM> can be attached or detached to or from the frame body <NUM>.

The loom <NUM> includes a driving shaft <NUM> which is interposed between a driving motor <NUM> and a main shaft <NUM>, is rotationally driven by the driving motor <NUM>, and rotationally drives the main shaft <NUM>. The loom <NUM> includes a swing shaft <NUM> for driving a locking shaft <NUM> to swing in a beating device <NUM>, and a swing mechanism <NUM> for connecting the swing shaft <NUM> and the driving shaft <NUM>. The present example is an example in which a crank mechanism is adopted as the swing mechanism <NUM>. The driving shaft <NUM>, the swing shaft <NUM>, and the swing mechanism <NUM> are disposed to be located within a range of the opening portion 14c in the driving-side frame <NUM> as viewed in the width direction, and are accommodated in the space within the driving-side frame <NUM>. Details of each configuration in such a loom <NUM> are as follows.

The driving shaft <NUM> is formed as a shaft having a dimension (length dimension) in an axial direction, which is larger than a dimension of the driving-side frame <NUM> in the width direction. However, the driving shaft <NUM> is a crank-shaped shaft formed as an eccentric portion <NUM> of which an intermediate portion is eccentric with respect to portions of both sides (both-side portions). The driving shaft <NUM> is rotatably supported by both side walls 12a and 12b of the driving-side frame <NUM> via bearings in an orientation in which the axial direction matches with the width direction, and is accommodated in the driving-side frame <NUM> in such a form.

The support position is located such that the driving shaft <NUM> is located below an intermediate portion in the opening portion 14c in the frame body <NUM> when the driving-side frame <NUM> is viewed in the width direction. The driving shaft <NUM> is supported by the frame cover <NUM> at one end thereof in one end side. Therefore, the driving shaft <NUM> is in a state where a portion including the other end is provided in a form of protruding, on the other end side, from an inner wall (inside wall portion) 14b of the frame body <NUM> in the width direction. The driving shaft <NUM> is supported by the inner wall portion of the frame body <NUM> at a portion on the driving-side frame <NUM> side from the protruding portion. The main shaft <NUM> is connected to the other end of the driving shaft <NUM> by a coupling member <NUM>.

Similar to the driving shaft <NUM>, the swing shaft <NUM> is formed as a shaft of which a dimension is larger than the dimension of the driving-side frame <NUM> in the width direction. Similar to the driving shaft <NUM>, the swing shaft <NUM> is supported by the both side walls 12a and 12b of the driving-side frame <NUM> via bearings in the orientation parallel to the driving shaft <NUM>, and is accommodated in the driving-side frame <NUM>. Similar to the driving shaft <NUM>, the support position is a position within the range of the opening portion 14c in the frame body <NUM> when the driving-side frame <NUM> is viewed in the width direction, and is a position above the driving shaft <NUM>. The swing shaft <NUM> is also supported by the frame cover <NUM> at one end thereof, a portion including the other end is provided so as to protrude from the inner wall portion 14b of the frame body <NUM>, and is supported by the inner wall portion 14b of the frame body <NUM> at the other end side thereof. A locking shaft <NUM> that supports the reed <NUM> is connected to the other end of the swing shaft <NUM> by a coupling member <NUM>.

As described above, the swing mechanism <NUM> is the crank mechanism and includes a swing arm <NUM> which is provided so as not to rotate relative to the swing shaft <NUM>, and a connection lever <NUM> which is a link for connecting the swing arm <NUM> and the eccentric portion <NUM> of the driving shaft <NUM>. In the illustrated example, the swing shaft <NUM> and the swing arm <NUM> are integrally formed. The connection lever <NUM> is relatively rotatably connected to the swing arm <NUM> and the driving shaft <NUM> (eccentric portion <NUM>). In the swing mechanism <NUM>, the driving shaft <NUM> is rotationally driven and the eccentric portion <NUM> is rotationally moved at a position eccentric from a shaft center of both side portions, and thereby the swing arm <NUM> (swing shaft <NUM>) connected to the eccentric portion <NUM> via the connection lever <NUM> is driven to swing. Therefore, in that configuration, a part of the driving shaft <NUM> also functions as the swing mechanism <NUM>. As described above, the swing shaft <NUM> is driven to swing, and thereby the locking shaft <NUM> connected to the swing shaft <NUM> and the reed <NUM> supported by the locking shaft <NUM> move to swing, and the beating operation is performed.

In the loom <NUM> described above, the loom <NUM> includes a driving-force transmission mechanism <NUM> that connects the driving shaft <NUM> and the driving motor <NUM>. Therefore, the driving shaft <NUM> connected to the main shaft <NUM> is rotationally driven by the driving motor <NUM>. In the present invention, the driving-force transmission mechanism <NUM> is configured to include a driving-force transmission shaft <NUM> connected to the driving motor <NUM> and a gear train <NUM> connecting the driving-force transmission shaft <NUM> and the driving shaft <NUM>. In the present example, the driving-force transmission mechanism <NUM> is configured such that the driving-force transmission shaft <NUM> and the driving motor <NUM> are connected by a driving gear train <NUM> different from the gear train <NUM> within the driving-side frame <NUM>. This is an example in which the driving gear train <NUM> is accommodated in the driving box <NUM>. Details of the driving-force transmission mechanism <NUM> of the present example are as follows.

The driving-force transmission shaft <NUM> is formed as a shaft of which a dimension (length dimension) in the axial direction is larger than the dimension of the driving-side frame <NUM> in the width direction and is larger than the length dimension of the driving shaft <NUM>. The driving-force transmission shaft <NUM> is supported by the inner wall 12b of the driving-side frame <NUM> via a bearing at one end thereof in the orientation parallel to the driving shaft <NUM>. However, the support position of the driving-force transmission shaft <NUM> is a position outside the range of the opening portion 14c in the frame body <NUM>, and is a position separated downward from the driving shaft <NUM>. Therefore, the driving-force transmission shaft <NUM> is in a form provided to penetrate the outer wall portion 14a of the frame body <NUM>, and a portion including the other end is located outside the outer wall portion 14a of the frame body <NUM>.

In the outer wall portion 14a of the frame body <NUM>, a through hole 14d is formed at a position corresponding to the support position to allow the driving-force transmission shaft <NUM> to penetrate as described above. The driving-force transmission shaft <NUM> is in a state of being provided in a form in which a portion including one end thereof is accommodated in the driving-side frame <NUM> and a portion including the other end penetrates the through hole 14d to protrude from the outer wall portion 14a (outer wall 12a of the driving-side frame <NUM>) of the frame body <NUM>. The driving-force transmission shaft <NUM> provided as described above is connected to the driving shaft <NUM> by the gear train <NUM> at a portion of one end side thereof within the driving-side frame <NUM>.

The gear train <NUM> is configured of two gears in the present example. Specifically, the gear train <NUM> is configured of a driving gear 84a attached so as not to rotate relative to the driving-force transmission shaft <NUM>, and a driven gear 84b that meshes with the driving gear 84a and is attached so as not to rotate relative to the driving shaft <NUM>. The driven gear 84b attached to the driving shaft <NUM>, in the present example, is provided on the inner wall 12b side in the driving-side frame <NUM> from the eccentric portion <NUM> in the driving shaft <NUM> in the width direction.

The driving-force transmission shaft <NUM> is a driving mechanism <NUM> for rotationally driving the driving-force transmission shaft <NUM> on the other end side, and is connected to the driving mechanism <NUM> including the driving motor <NUM>. In addition to the driving motor <NUM>, the driving mechanism <NUM> includes a driving gear train <NUM> that connects the output shaft <NUM> of the driving motor <NUM> and the driving-force transmission shaft <NUM>. The driving mechanism <NUM> is configured to have a housing-shaped driving box <NUM> as a base, the driving motor <NUM> is attached to the outer surface of the driving box <NUM>, and the driving gear train <NUM> is accommodated within the driving box <NUM>.

In the driving box <NUM>, the driving motor <NUM> is attached to an outer surface 94a1 of one side wall 94a of the pair of side walls 94a and 94b facing each other, and the both side walls 94a and 94b are provided to be parallel to the outer wall 12a of the driving-side frame <NUM>. The driving box <NUM> is provided to overlap the driving-side frame <NUM> in the back and forth direction of the loom <NUM>. As described above, since the driving-force transmission shaft <NUM> protruding from the driving-side frame <NUM> is connected to the driving gear train <NUM> accommodated within the driving box <NUM>, the driving-force transmission shaft <NUM> penetrates the other side wall 94b of the pair of side walls 94a and 94b in the driving box <NUM>, and the portion of the other end side is located within the driving box <NUM> (accommodated in the driving box <NUM>). Therefore, a through hole 94d that allows the penetration of the driving-force transmission shaft <NUM> is formed on the other side wall 94b in the driving box <NUM>.

As described above, the driving-force transmission shaft <NUM> protruding from the driving-side frame <NUM> is supported by one side wall 94a in the driving box <NUM> via a bearing at the other end. However, the driving box <NUM> is provided such that the other side wall 94b through which the driving-force transmission shaft <NUM> penetrates is separated from the driving-side frame <NUM>.

The driving motor <NUM> is attached to the driving box <NUM> by bolts or the like (not illustrated) such that the output shaft <NUM> is oriented toward the driving-side frame <NUM> side at a position separated upward with respect to the driving-force transmission shaft <NUM> supported as described above. A through hole 94c is formed on one side wall 94a in the driving box <NUM> to which the driving motor <NUM> is attached to allow the output shaft <NUM> of the driving motor <NUM> to penetrate at the attachment position. Therefore, as described above, in a state where the driving motor <NUM> is attached to the driving box <NUM>, the output shaft <NUM> extends within the driving box <NUM> in the width direction and exists to be parallel to the driving-force transmission shaft <NUM>. The output shaft <NUM> is connected to a portion of the driving-force transmission shaft <NUM> on the portion of the other end side of via the driving gear train <NUM> within the driving box <NUM>.

Similar to the gear train <NUM> connecting the driving shaft <NUM> and the driving-force transmission shaft <NUM>, the driving gear train <NUM> is configured of two gears. Specifically, the driving gear train <NUM> is configured of a driving gear 92a that is attached so as not to rotate relative to the output shaft <NUM> of the driving motor <NUM>, and a driven gear 92b that meshes with the driving gear 92a and is attached so as not to rotate relative to the driving-force transmission shaft <NUM>.

In the present example, the frame body <NUM> has a hollow protruding portion 14e formed to protrude from the outer wall portion 14a toward the driving box <NUM> side around the through hole 14d in which the driving-force transmission shaft <NUM> protrudes in the outer wall portion 14a, and a space inside the protruding portion 14e communicates with the through hole 14d. On the other hand, the driving box <NUM> also has a hollow protruding portion 94e formed to protrude from the other side wall 94b toward the driving-side frame <NUM> side around the through hole 94d in which the driving-force transmission shaft <NUM> penetrates in the other side wall 94b, and a space inside the protruding portion 94e communicates with the through hole 94d.

Both the protruding portions 14e and 94e have each a size (protruding amount) so as to overlap on a protruding end side in the width direction, and are formed to have each a size such that one protruding portions 14e (on the driving-side frame <NUM> side in the illustrated example) fits into the other protruding portion 94e (driving box <NUM> side). Therefore, the through hole 14d of the driving-side frame <NUM> and the through hole 94d of the driving box <NUM> side communicate with each other through the internal spaces of the both protruding portions 14e and 94e. In other words, in the configuration of the frame <NUM>, the space within the driving-side frame <NUM> and the space within the driving box <NUM> are adapted to communicate with each other via the through holes 14d and 94d, and the spaces within the protruding portions 14e and 94e. However, in the present example, in the spaces within the protruding portions 14e and 94e, oil seals <NUM> are provided between inner peripheral surfaces of the protruding portions 14e and 94e, and the driving-force transmission shaft <NUM>. A communication state between the space within the driving-side frame <NUM> and the space within the driving box <NUM> is blocked by the oil seals <NUM>. In other words, the space within the driving-side frame <NUM> and the space within the driving box <NUM> are in a state independent of each other.

According to the loom <NUM> of the present example configured as described above, the driving-force transmission shaft <NUM> in the driving-force transmission mechanism <NUM>, which transmits the rotation of the driving motor <NUM> (output shaft <NUM>) to the main shaft <NUM>, and is connected to the main shaft <NUM> and rotationally driven by the driving motor <NUM>, is configured such that the one end side portion is accommodated in the driving-side frame <NUM> and connected to the driving shaft <NUM> within the driving-side frame <NUM>. Moreover, the position where the driving-force transmission shaft <NUM> is provided in the driving-side frame <NUM> is outside the range of the opening portion 14c in the frame body <NUM> to which the frame cover <NUM> is attached. The driving motor <NUM> is provided on the side surface (outer surface 94a1) not facing the frame cover <NUM> in the driving box <NUM> that is separated from the driving-side frame <NUM>. That is, the driving motor <NUM> is provided at a position separated from the driving-side frame <NUM> so as not to hinder the removal of the frame cover <NUM>.

Therefore, in the loom <NUM> configured as described above, the frame cover <NUM> can be removed from the frame body <NUM> in the driving-side frame <NUM> while maintaining the connection state between the driving shaft <NUM> and the driving-force transmission shaft <NUM> (driving-force transmission mechanism <NUM>). Therefore, in performing maintenance of the swing mechanism <NUM> or the like within the driving-side frame <NUM>, the removing operation of the frame cover <NUM> is simplified as compared with that of the loom of the related art. As a result, it is possible to easily perform the maintenance.

In the present example, the driving-force transmission shaft <NUM> is provided between the driving-side frame <NUM> and the driving box <NUM>. In a case of such a configuration, it is preferable that the portion in the driving-force transmission shaft <NUM> between the driving-side frame <NUM> and the driving box <NUM> is covered. In the present example, the loom <NUM> is configured such that the protruding portions 14e and 94e through which the through holes 14d and 94d communicate with each other are formed in the driving-side frame <NUM> and the driving box <NUM>, and both the protruding portions 14e and 94e are connected to cover the driving-force transmission shaft <NUM>. That is, a configuration is adopted in which the driving-force transmission shaft <NUM> is covered by the driving-side frame <NUM> and the driving box <NUM> itself. Therefore, the configuration that covers the driving-force transmission shaft <NUM> is realized without increasing the number of parts.

As described above, in a case where the driving-side frame <NUM> and the driving box <NUM> are configured to be connected via the protruding portions 14e and 94e, a form is provided in which the space within the driving-side frame <NUM> and the space within the driving box <NUM> communicate with each other. However, in the present example, the oil seals <NUM> are provided inside the protruding portions 14e and 94e, and the communication between the both spaces is blocked by the oil seals <NUM>. Therefore, since the both spaces are in an independent state, for example, lubricating oil for driving the gear trains <NUM> and <NUM> with lubrication, which are disposed within the respective spaces, can be of a type suitable for the gear trains <NUM> and <NUM>.

In the above, one embodiment (hereinafter, referred to as "the above example") of the loom to which the present invention is applied is described. However, the present invention is not limited to the configuration described in the above example, and can be implemented in other embodiments (modified examples) as described below.

In that case, the intermediate shaft is provided in a form in which one end thereof is supported by the one side wall in the driving box. The intermediate shaft is made to protrude from the other side wall in the driving box, and the connection between the intermediate shaft and the driving-force transmission shaft may be performed within the both connected protruding portions of the frame body and the driving box. Alternatively, the driving-force transmission shaft may extend into the driving box through the other side wall in the driving box and the connection may be performed within the driving box.

In the driving-force transmission mechanism, the configuration (connection configuration) in which the driving motor and the driving-force transmission shaft or the intermediate shaft are connected is not limited to the driving gear train <NUM> configured of two gears of the driving gear 92a and the driven gear 92b as in the above example. For example, the connection configuration may be one that is also configured of the same gear train, or may be a gear train that is configured of three or more gears. The connection configuration is not limited to one configured of the gear train, and may be configured to connect a pulley attached to the output shaft of the driving motor and a pulley attached to the driving-force transmission shaft with a timing belt.

In a case of the connection configuration using such a timing belt, it is possible to omit the driving box <NUM> which is different from the driving-side frame <NUM> as in the above example. In that case, the support of the driving-force transmission shaft on the other end side may be a form in which the portion located on the driving-side frame side from the position where the pulley is attached in the driving-force transmission shaft is supported by the outer wall portion of the frame body. The support of the driving motor may be a form of being performed by, for example, a support bracket or the like attached to the frame body at a position separated from the driving-side frame so that the driving motor does not hinder the removal of the frame cover.

The connection configuration is not limited to the one configured by using the gear train, the timing belt, or the like as described above, and the output shaft of the driving motor and the driving-force transmission shaft may be configured to be directly connected by a coupling member or the like.

(<NUM>) Regarding the connection between the driving shaft and the driving-force transmission shaft in the driving-force transmission mechanism, in the above example, the driving shaft <NUM> and the driving-force transmission shaft <NUM> are connected by the gear train <NUM> configured of two gears of the driving gear 84a and the driven gear 84b. The connection position is on the inner wall 12b side of the driving-side frame <NUM> with respect to the eccentric portion <NUM> of the driving shaft <NUM> in the width direction. However, the gear train connecting the driving shaft <NUM> and the driving-force transmission shaft <NUM> is not limited to the one configured of two gears as in the above example, and may be configured of three or more gears. The connection position may be on the outer wall 12a side of the driving-side frame <NUM> with respect to the eccentric portion <NUM> of the driving shaft <NUM> in the width direction.

(<NUM>) Regarding the driving-side frame and the driving box, in the above example, the loom <NUM> is configured such that the driving-side frame <NUM> and the driving box <NUM> are formed of the protruding portions 14e and 94e as described above, and the portion (shaft portion) of the driving-force transmission shaft <NUM> (or the intermediate shaft) located between the outer wall 12a of the driving-side frame <NUM> and the other side wall 94b of the driving box <NUM> is covered by the both protruding portions 14e and 94e. Regarding the protruding portions provided to cover the shaft portion as described above, it is not limited to those formed on both sides of the driving-side frame and the driving box and provided to be connected between the both side walls, and the protruding portions may be formed so as to extend to the other end of only one of the driving-side frame and the driving box and to be connected to the other.

As described above, the protruding portions provided in the driving-side frame and/or the driving box are not limited to be integrally formed with respect to other portions of the driving-side frame or the driving box in which the protruding portions are provided, and may be formed as separate members and attached to a portion of the driving-side frame or the driving box.

The configuration (portion and member) for covering the shaft portion is not limited to those provided as a part of the driving-side frame and/or the driving box, and may be formed as separate members from the driving-side frame and the driving box, and the separate members may be provided independently from each other between the driving-side frame and the driving box. However, in the loom of the present invention, the configuration for covering the shaft portion as described above is not necessarily required, and the loom may be configured such that the shaft portion between the driving-side frame and the driving box may be exposed.

In the above example, as described above, the oil seals <NUM> are provided inside the protruding portions 14e and 94e in order to make both spaces independent by blocking the communication state between the space within the driving-side frame <NUM> and the space within the driving box <NUM>, which are in a state of being capable of communicating with each other by connecting the protruding portions 14e and 94e. However, in the loom of the present invention, the oil seals can be omitted because the both spaces do not necessarily have to be in an independent state by the configuration or the like.

Claim 1:
A loom (<NUM>) comprising:
a driving motor (<NUM>) for driving the loom (<NUM>);
a driving shaft (<NUM>) which is connected to a swing shaft (<NUM>) for driving a reed (<NUM>) to swing via a swing mechanism (<NUM>), the driving shaft (<NUM>) being connected to the driving motor (<NUM>) via a driving-force transmission mechanism (<NUM>), and rotationally driven by the driving motor (<NUM>); and
a housing-shaped side frame (<NUM>) that accommodates the driving shaft (<NUM>) and the swing shaft (<NUM>) in an orientation in which each axial direction of the driving shaft (<NUM>) and the swing shaft (<NUM>) matches with a width direction,
characterized in that
the driving-force transmission mechanism (<NUM>) includes a driving-force transmission shaft (<NUM>) that is provided so as to protrude from a side wall (12b) of the side frame (<NUM>) while extending parallel to the driving shaft (<NUM>) within a space of the side frame (<NUM>), the driving-force transmission shaft being connected to the driving motor (<NUM>) on an end portion side protruding from the side frame, and a gear train (<NUM>) that connects the driving-force transmission shaft (<NUM>) and the driving shaft (<NUM>).