JP4521915B2 - Motor fixing structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a motor fixing structure, and more particularly to a portable printer motor fixing structure for fixing a motor of a portable printer .
[0002]
[Prior art]
Conventionally, when assembling a portable printer, when fixing a motor to a motor housing provided in a case, the motor is screwed to the motor housing through a motor mounting screw hole provided in the motor. It was.
[0003]
[Problems to be solved by the invention]
However, if the screw itself is very small because the motor is small like a portable printer, there is a drawback that screwing work is difficult, especially other parts etc. are concentrated near the motor housing part, If it is difficult for the driver to enter, the screwing operation becomes more difficult.
[0004]
The present invention has been made in view of the above circumstances, and provides a motor fixing structure for a portable printer that can simplify the work because screwing is not required and can reduce the number of parts. Objective.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a motor fixing structure for a portable printer comprising an apparatus main body and an opening / closing cover provided with a platen roller, and a motor for driving the platen roller to rotate, and housing the motor. a motor housing portion provided on the cover, and motor cover which has a projection that fits into the mounting screw hole that is provided to the motor, provided at both ends of the motor cover, first with engaging claws And a guide groove that is provided in the motor housing portion and is slidable so that the motor cover and the motor housing portion approach and separate from each other in a state in which the first fitting member is fitted. the engaging second engagement member having an engagement portion engaged with engagement claws comprises, fitted with the protrusion of the motor cover to the screw holes for mounting of the motor and having, this In state, along the cover side plate of the motor housing portion, the motor housing by sliding in a direction the approaching insert the first fitting member to the guide groove of the second engagement member The motor is sandwiched between a portion and the motor cover, and the engaging claw is engaged with the engaging portion.
[0006]
According to the present invention, first, the protrusion of the motor cover is inserted into the screw hole for mounting the motor. Then, in a state where the motor is supported by the motor cover, the first fitting member is inserted into the guide groove of the motor housing portion and is fitted to the second fitting member. After the fitting, the first fitting member is further slid along the guide groove so that the motor is sandwiched between the motor housing portion and the motor cover, and the engaging claw and the engaging portion are engaged in this state. Thereby, a motor can be fixed to a motor storage part easily and rapidly.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The preferred embodiments of the motor fixing structure according to the present invention will be described below in detail with reference to the accompanying drawings. In this embodiment, an example of a motor fixing structure used in a portable printer will be described.
[0008]
First, a schematic structure of a printer 10 to which the motor fixing structure of the present invention is applied will be described with reference to FIG.
[0009]
As shown in FIG. 1, an opening / closing cover 14 having a bulging portion in an arc shape is rotatably supported by the apparatus main body 12 at the bottom of the printer apparatus main body 12. The open / close cover 14 is opened to the side by releasing the engagement between the open / close cover 14 and the apparatus main body 12 by pushing the open / close lever 16 upward. When the opening / closing cover 14 is opened, a label paper loading section (not shown) is exposed in the interior of the opening / closing cover 14, and a rolled roll of label paper can be loaded.
[0010]
A data receiving unit 18 is provided in the upper part of the printer 10, and a receiving device (not shown) is provided inside the cover 20. When a print data signal is transmitted by infrared rays or the like from a transmission means (for example, a handy terminal), the reception device receives this signal and transmits data to the print unit. A power switch 13, a battery housing cover 15, a connector 17, and the like are provided on one side of the printer 10.
[0011]
An operation unit 22 is provided on the upper surface of the printer 10, and a feed button 24, a print button 26, and the like are arranged in parallel with the operation unit 22. Then, the label is printed on the printing unit, and the feed button 24 is pressed to feed the label paper without printing.
[0012]
A label paper outlet 28 is provided on the front side of the printer 10, and a printing unit is provided inside the label paper outlet 28. The printed label paper is discharged from the label paper outlet 28. A mount stripping device 30 is provided above the label sheet take-out port 28, and the mount stripping device 30 slides in the vertical direction by narrowing the distance between the pair of sandwiching knobs 32 and 32. In addition, a label take-out port 34 is formed in the mount sheet peeling device 30. When the mount sheet peeling device 30 is slid downward to align the label take-out port 34 and the label sheet take-out port 28, the label sheet take-out device 30 is removed. The label sheet fed from the outlet 28 is peeled off from the mount and protrudes from the label take-out port 34, and the peeled mount is discharged from the lower portion of the mount stripping device 30 and the apparatus main body 12.
[0013]
The printing unit is composed of, for example, a thermal printer (not shown) and a platen roller 36, and a driving unit such as a platen roller 36 and a motor 38 that rotationally drives the platen roller 36 is provided on the opening / closing cover 14 side (see FIG. 2, see FIG.
[0014]
Next, the motor fixing structure of the present invention will be described.
[0015]
FIG. 2 shows a state before the motor 38 is fixed, and gear groups 42, 42, 42 (see FIG. 2) that transmit the rotational driving force of the motor 38 to the platen roller 36 in order to make it easy to see the member that fixes the motor 38. 3) is omitted. 3 is a side view showing the state after the motor 38 is fixed, and FIG. 4 is a side view showing the state after the motor is fixed, with the side of the printer cut away.
[0016]
As shown in these drawings, the motor fixing structure mainly includes a motor housing portion 40 that houses the motor 38, a motor cover 44, and a pair of snap plates 46 and 46 provided at both ends of the motor cover 44. And a pair of groove plates 48, 48 provided in the motor housing 40.
[0017]
The motor storage unit 40 is provided on one end side (right side in FIG. 1) of the arcuate portion of the opening / closing cover 14, and the power of the motor 38 fixed to the motor storage unit 40 is the upper end of the opening / closing cover 14. Is transmitted to the platen roller 36 rotatably supported by the gear group 42, 42, 42. The motor storage section 40 is provided with a storage section main body 50 having a surface that matches the arc shape of the motor circumferential surface 38A in a vertical direction, and a pair of groove plates 48 in the horizontal direction from the upper and lower ends of the storage section main body 50, 48 is arranged. The groove plate 48 is formed with a guide groove 48A in the longitudinal direction and an engagement hole 48B.
[0018]
Further, the motor housing 40 is provided with a ribbed plate 54 parallel to the side plate 14A of the opening / closing cover 14, and sandwiching the both side surfaces 38B, 38B of the motor 38 with the side plate 14A, the motor 38 Fix the axial direction.
[0019]
As shown in FIG. 5, the motor cover 44 is formed in an arc shape in conformity with the motor circumferential surface 38 </ b> A, and grips the entire motor circumferential surface 38 </ b> A by being combined with the housing main body 50 of the motor housing 40. Further, the motor cover 44 is formed with projections 44A and 44A that are fitted into the two mounting screw holes 38C and 38C provided in the motor 38, and a pair of upper surfaces of both ends of the motor cover 44 are formed on the upper surface. The snap plates 46, 46 are supported. The snap plate 46 is formed so as to be fitted in the guide groove 48A of the groove plate 48, and the motor cover 44 and the housing main body 50 are moved closer together by sliding the snap plate 46 along the guide groove 48A. Separate. Furthermore, an engaging claw 46A that engages with an engaging hole 48B formed in the groove plate 48 is formed at the tip of the snap plate 46. Although the example in which the engaging claw 46A is formed in the snap plate 46 and the engaging hole 48B is formed in the groove plate 48 is shown, the engaging hole is formed in the snap plate 46 and the engaging claw is formed in the groove plate 48. May be formed.
[0020]
Next, a procedure for fixing the motor 38 to the motor housing 40 will be described.
[0021]
First, the protrusion 44 </ b> A of the motor cover 44 is fitted into the mounting screw hole 38 </ b> C of the motor 38 to attach the motor cover 44 to the motor 38. Next, the pair of snap plates 46, 46 of the motor cover 44 are inserted into the guide grooves 48 </ b> A, 48 </ b> A of the pair of groove plates 48, 48 in the motor storage unit 40, respectively, and the snap plate 46 is fitted to the groove plate 48. The snap plate 46 is slid into the guide groove 48A until the engagement claw 46A of the snap plate 46 is engaged with the engagement hole 48B of the groove plate 48. As a result, the motor peripheral surface 38A is sandwiched between the storage unit main body 50 and the motor cover 44, and the motor 38 is sandwiched between the both side surfaces 38B and 38B of the motor 38 by the ribbed plate 54 and the side plate 14A of the opening / closing cover 14. 38 is fixed to the motor housing 40. Further, since the projection 44A of the motor cover 44 is fitted into the mounting screw hole 38C of the motor 38, the motor body can be moved even if the motor 38 is driven to rotate the rotation shaft gear 38D. Absent.
[0022]
As described above, the motor fixing structure of the present invention only has to insert the snap plate 46 of the motor cover 44 supporting the motor 38 into the guide groove 48A of the groove plate 48 provided in the motor housing portion 40. Stopping is not required and the fixing work of the motor 38 can be simplified, so that the number of assembling work of the printer 10 can be reduced and the assembling time can be shortened. In addition, the number of parts can be reduced.
[0023]
Further, the motor fixing structure described above has been described in the case where the motor of the portable printer 10 is fixed. However, the motor fixing structure of the present invention can also be applied to other electric devices including the motor 38. it can.
[0024]
【The invention's effect】
As described above, according to the motor fixing structure of the present invention, screwing is not required, and the work can be simplified. Moreover, since the number of parts can be reduced, it contributes to cost reduction.
[Brief description of the drawings]
FIG. 1 is a perspective view of a portable printer to which a motor fixing structure of the present invention is applied. FIG. 2 is a perspective view before a motor is fixed to a motor housing. Fig. 4 is a perspective view after the motor is fixed to the motor housing. Fig. 4 is a side view of the state after fixing the motor with the side of the printer cut away. Fig. 5 is a motor cover and snap. Perspective view explaining the plate
DESCRIPTION OF SYMBOLS 10 ... Printer, 12 ... Printer apparatus main body, 14 ... Opening and closing cover, 36 ... Platen roller, 38 ... Motor, 38A ... Motor peripheral surface, 38B ... Motor side surface, 38C ... Mounting screw hole, 40 ... Motor storage part, 42 ... Gear 44, motor cover 44A, projection, 46 ... snap plate (first fitting member), 46A ... engagement claw, 48 ... groove plate (second fitting member), 48A ... guide groove, 48B ... engagement hole, 50 ... storage unit body, 54 ... ribbed plate

Claims (3)

In the fixing structure of the motor of the portable printer provided with the apparatus main body and the opening / closing cover provided with the platen roller,
A motor for rotating the platen roller and a motor storage for storing the motor are provided in the opening and closing cover,
A motor cover having a protrusion that fits into a mounting screw hole provided in the motor;
A first fitting member provided at both ends of the motor cover and having an engaging claw;
The engaging portion has a guide groove provided in the motor housing portion and slidable so that the motor cover and the motor housing portion approach and separate from each other with the first fitting member fitted. A second fitting member having an engaging portion that engages with
It said projecting portion of the motor cover fitted to the mounting screw hole of the motor, in this state,
By inserting the first fitting member into the guide groove of the second fitting member and sliding it in the approaching direction along the opening / closing cover side plate of the motor housing portion, the motor housing portion and the A motor fixing structure for a portable printer , wherein the motor is sandwiched by a motor cover and the engaging claw is engaged with the engaging portion. 2. The motor fixing structure for a portable printer according to claim 1, wherein the motor cover and the motor housing portion have a shape corresponding to a shape of a peripheral surface of the motor. 3. A motor fixing structure for a portable printer according to claim 1, further comprising a side fixing member for fixing a side surface of the motor.

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