JPH0321972Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a hand labeler that manually attaches a label on which a price or the like is printed to a product, and particularly relates to an improvement of the printing device thereof.

(Prior Art) As this type of printing device, those shown in FIGS. 10 and 11 are known.

To explain this, a plurality of printing belts 1 are hung between corresponding character selection wheels 2 and positioning pieces 3. The positioning piece 3 has a pressing support 5 whose one piece is fixed to the left and right mounting plates 4, 4.
It is constantly pressed by.

The character selection wheel 2 is rotatable and fitted into a rotary cylinder 7 having a single through hole 6, and a character selection rod 8 is inserted into the cylinder of the rotary cylinder 7. The character selection rod 8 is provided with a protrusion 9, and the protrusion 9 is configured to mesh with the internal teeth 10 of the character selection wheel 2 through the through hole 6 of the rotary cylinder 7.

Therefore, by moving the knob 11 fixed to one end of the character selection rod 8 in its axial direction, engaging the protrusion 9 with the inner teeth 10 of the desired character selection rod 2, and further rotating the knob 11, the pressing support is achieved. The printing belt 1 corresponding to the pressure of the tool 5 can be rotated.

Furthermore, the movement of the character selection rod 8 in the axial direction is restricted by
This is done by a recess 13 provided in a character selection guide 12 attached to the character selection rod 8, and a small ball of a pressing tool 14 that engages with the recess 13. The small ball of this pressing tool 14 is fixed integrally with the spring by adhesive or the like.

(Problem to be solved by the invention) By the way, as mentioned above, the movement of the character selection rod 8 in the axial direction is restricted by the pressing tool 14, and this pressing tool 14 is made by bonding a small ball and a spring with adhesive. It is fixed. For this reason, in the past, the small ball and spring were easily separated, which caused failures, and the small ball and spring were both extremely small, making it difficult to assemble.Furthermore, the large number of parts made it difficult to assemble the entire assembly. However, there were problems such as increased production costs.

Furthermore, in place of the pressing tool 14, it has been proposed that a bent protrusion of a leaf spring is brought into contact with the recess 13 of the character selection guide 12, but this also requires a large number of parts and is complicated to manufacture. Character selection guide 12
Since the tip was a free end, as the abutting bent protrusion moves from the base of the character selection guide 12 toward the tip, the character selection guide 12 deforms and bends without being able to resist the pressing force of the leaf spring, causing the pressing force to increase. The disadvantage was that it could easily cause a breakdown.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks, facilitate assembly work, reduce manufacturing costs as a whole, and prevent failures.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a rotary cylinder having a single slit along the axial direction, which is rotatably attached to a pair of left and right mounting plates, A character selection rod is inserted into the cylinder so as to be slidable in the axial direction, and a protrusion provided on the outer periphery of the character selection rod protrudes from a slit in the rotary cylinder, and a plurality of character selection wheels are provided on the outer periphery of the rotary cylinder. a printing belt is hung between each of the character selection wheels and its corresponding positioning piece, and inner teeth are provided on the inner peripheral surface of each of the character selection wheels to engage with the projections, and the character selection A character selection guide having elasticity and an elastic frame formed in the shape of a rectangular frame is attached to the rod parallel to the selection rod, and the elastic frame is inserted into a guide hole provided in the mounting plate. Furthermore, a plurality of recesses are provided in the frame portion of the elastic frame body, and positioning protrusions that engage with each of the recesses are provided on the inner periphery of the guide hole.

(Function) To explain the function of the present invention with reference to the drawings, when the knob 29 is pushed or pulled in its axial direction, the elastic frame 31 is deformed (distorted) and the recess 30 and positioning protrusion 34 The character selection rod 22 becomes movable in its axial direction.

Then, when the character selection rod 22 is set at a predetermined position and a desired printing belt 1 is selected, the internal teeth 25 of the character selection wheel 24 corresponding to this printing belt 1 engage with the projections 23 of the character selection rod 22.

At this time, the elastic frame 31 returns to its original shape due to its elasticity, and the recess 30 engages with the positioning protrusion 34 again, thereby restricting the movement of the character selection rod 22 in the axial direction.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of the present invention. Reference numeral 20 is a rotary cylinder having a single slit 21, and a cylindrical character selection rod 22 is slidable in the axial direction inside the rotary cylinder 20. Insert into. A projection 23 is integrally provided on the outer periphery of the character selection rod 22, and this projection 23 projects from the slit 21 of the rotating cylinder 20.

A plurality of printing belts 1 are arranged around the outer periphery of the rotating cylinder 20.
A plurality of character selection wheels 24 corresponding to the character selection wheels 24 are rotatably fitted, and internal teeth 25 provided on the inner peripheral surface of the character selection wheels 24 are configured to mesh with a protrusion 23 integral with the character selection rod 22. . A flange 26 is integrally formed on the outer peripheral surface of the character selection wheel 24.
This prevents the printing belt 1 from slipping in the width direction.

Then, in the above state, the rotary cylinder 20 is rotatably attached to the pair of left and right mounting plates 27, 27. Further, one end of the printing belt 1 is hung on the character selection wheel 24 as described above, and the other end is hung on a corresponding positioning piece (not shown). Note that this positioning piece is similar to the positioning piece 3 shown in FIG. 11.

Reference numeral 28 denotes a character selection guide, which includes a deformable (flexible) elastic frame 31 formed in a rectangular frame shape and having a plurality of recesses 30 formed in one piece, and a character selection guide that hangs integrally from one end of this elastic frame 31. It consists of a ring-shaped mounting frame 32. This Honji Selection Guide 28 is
It is preferable that the entire structure is made of a highly elastic synthetic resin.

Then, the elastic frame 31 is attached to the character selection rod 22 together with the knob 29 using the mounting frame 32, and is inserted into the guide hole 33 provided in the mounting plate 27, so that the recess 30 is provided in the guide hole 33. so as to mesh with the positioning protrusion 24. Note that the number and pitch of the recesses 30 formed on one side of the elastic frame 31 are determined by the character selection ring 2 inserted into the rotary cylinder 20.
This corresponds to the number and size of 4, respectively.
Further, the recess 30 may be formed not only on one side of the elastic frame 31 as described above, but also on the other side opposite to the one side.

Therefore, the character selection guide 28
The recess 30 engages with the positioning protrusion 34 to constantly restrict movement of the character selection rod 22 in the axial direction. On the other hand, when the knob 29 is pushed or pulled in the axial direction, the elastic frame 31 is deformed to release the engagement and the character selection rod 22 becomes movable in the axial direction. The internal teeth 25 of the character selection wheel 24 mesh with each other.

2 to 4 show other embodiments of the character selection guide.

This character selection guide 35 has almost the same structure as the character selection guide 28 shown in FIG. 1, except that one side of the elastic frame 36 is made wider than the other sides to form a guide side 37. are different. Also, the elastic frame 3
It is preferable that the recessed part 38 formed on one side of the printing belt 6 has an arc-shaped cross section as shown in the figure, and a scale used for selecting characters to be printed on the printing belt 1 is provided at the tip of the side where the recessed part 38 is formed. 39 will be provided.

Then, the elastic frame 36 of the character selection guide 35
is the mounting plate 40 as shown in FIGS. 5 and 6.
It is inserted into the guide hole 41 provided in the guide hole 41 so that its recess 38 engages with the positioning protrusion 42 provided in the guide hole 41, and its guide side 37 is inserted into the guide hole 4.
A pair of upper and lower guide grooves 43 provided inside 1 are slidable.

FIG. 7 shows a stopper mechanism that restricts the rotation of the character selection wheel 24.

In the figure, 44 is a stopper device, and as shown in FIGS. 8 and 9, the shaft 4 is made of a square cylinder.
5, a pair of left and right stopper pieces 4 made of elastic material
6 and 46 are integrally attached in a Y-shape, and the ends thereof are bent to form a stopper portion 47. In addition,
The number of stopper pieces 46, 46 that are attached corresponds to the number of character selection wheels 24.

The stopper device 44 configured in this manner has the seventh
As shown in the figure, both ends of the shaft 45 are attached to a pair of left and right mounting plates 27, 27. At this time, the vicinity of the tip of each stopper piece 46 constantly presses the outer peripheral surface of each corresponding character selection wheel 24, and the character selection wheel 24
The stopper part 47 is made to come into contact with a stopper projection 48 provided on the outer periphery of the stopper part 4. Also, printing belt 1
As shown in FIG. 11, heading characters 1A are formed in the upper half that hangs on the character selection wheel 24 side, and printed characters 1B are formed in the lower half that hangs on the positioning frame 3.

Therefore, the character selection wheel 24 rotates approximately 360 degrees in both clockwise and counterclockwise directions, but further rotation is limited by half a turn by the stopper portion 47 of each stopper piece 46 and the stopper protrusion 48. regulated by. As a result, the rotation of the index character 1A and the printed character 1B of the printing belt 1 is restricted to half a revolution, so that the index character 1A can be used indefinitely without being stained with ink.

Next, the operation of the embodiment configured as above will be explained.

Now, when the knob 29 is pushed or pulled in the axial direction, the recess 3 of the elastic frame 31
0 is deformed (distorted) inward, and the engagement between the recess 30 and the positioning protrusion 34 is released,
The character selection rod 22 can now slide inside the rotary cylinder 20. Then, when the scale 50 provided on the elastic frame 31 is set on a desired printing belt 1, the inner teeth 25 of the character selection wheel 24 on which the printing belt 1 is hung are set.
engages with the protrusion 23 of the character selection rod 22. At this time, the elastic frame 31 returns to its original state due to its elasticity, and the recess 3
0 is again engaged with the positioning protrusion 34, and the movement of the character selection rod 22 in the axial direction is restricted.

Furthermore, when the character selection rod 22 is rotated using the knob 29 at that position, the character selection wheel 24 engaged with the protrusion 23 rotates, so that the printing belt 1 resists the pressure of the pressing support 5. rotates. Then, when a desired heading character 1A is selected, the corresponding heading character 1B comes to the printing position. Next, by performing the same operation on the other printing belts 1, all desired printing characters are selected.

When the hand labeler is used next time, ink is applied to each printed character 1B on the selected printing belt 1 by the ink application mechanism, and the character is printed on the supplied label by the label supply mechanism.

(Effects of the invention) As described above, in the present invention, the movement of the character selection rod in the axial direction is restricted by inserting an elastic frame formed in the shape of a rectangular frame into the guide hole provided in the mounting plate. This is done through the engagement of a recess provided on one side of the elastic frame with a positioning protrusion provided on the inner periphery of its guide hole, which reduces the number of parts and makes assembly easier and easier to manufacture. Costs can be reduced as a whole, and in addition, since the frame portion of the character selection guide is supported at its base and tip, the selection guide is less likely to bend or deform even after long-term use, preventing breakdowns. It has the effect of preventing

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a plan view showing another embodiment of the character selection guide, Fig. 3 is a front view thereof, Fig. 4 is a right front view thereof, and Fig. 5 is a plan view showing another embodiment of the character selection guide. FIG. 6 is a sectional view taken along the line A-A, FIG. 7 is a diagram showing the stopper mechanism of the printing belt, FIG. 8 is a front view of the stopper mechanism, and FIG. 9 is a side view thereof. , Figure 10 is a front view of the conventional device;
Figure 1 is a sectional view thereof. 1 is a printing belt, 3 is a positioning piece, 20 is a rotating cylinder, 21 is a slit, 22 is a character selection rod, 23
is a protrusion, 24 is a character selection wheel, 25 is an internal tooth, 27 is a mounting plate, 28, 35 is a character selection guide, 30, 3
8 is a recessed portion, 31 and 36 are elastic frames, 33 and 41 are guide holes, and 34 and 42 are positioning projections.

Claims (1)

[Claim for Utility Model Registration] A rotary cylinder having a single slit along the axial direction is rotatably attached to a pair of left and right mounting plates, and a character selection rod is slidable in the axial direction within the cylinder of the rotary cylinder. At the same time, a protrusion provided on the outer periphery of the character selection rod protrudes from the slit of the rotary cylinder, and a plurality of character selection wheels are fitted on the outer periphery of the rotary cylinder, and a character selection ring corresponding to each character selection ring is fitted to the outer periphery of the rotary cylinder. A printing belt is hung between each of the positioning pieces, internal teeth are provided on the inner peripheral surface of each character selection wheel to engage with the protrusion, and the character selection rod has elasticity and is formed into a rectangular frame shape. Attach a character selection guide having an elastic frame body parallel to the selection bar, insert the elastic frame body into a guide hole provided in the mounting plate, and further form a plurality of recesses in the frame portion of the elastic frame body. A printing device for a hand labeler, wherein a positioning projection is provided on the inner periphery of the guide hole and that engages with each of the recesses.