JPH0211411Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is used to apply masking tape to predetermined areas to create non-painted areas when painting various workpieces, such as vehicle bumpers. The present invention relates to a hand-held masking device used for.

(Prior art) Conventionally, as this type of device, for example,
As seen in No. 41942, there is an upper winding frame that holds the masking tape in a freely unwound manner on a frame having an operating handle, and a lower pressing roller that presses the tape drawn out from the winding frame onto a workpiece. Types equipped with other pressing means are known, but
In this case, the winding frame and the roller consist of an upper and lower pair, so that according to the operation, one of the tapes is deposited on the workpiece. In addition, there is a device for pasting one decorative sheet on the circumferential surface of a rectangular rod-shaped material, such as the one described in Japanese Utility Model Application Publication No. 57-128407, in which the decorative sheet is pasted on the top surface of the material using a pressure roll. It is also known that after the sheet has been applied, both sides of the sheet are gradually bent using a plurality of bending guides arranged in the front-rear direction, and the sheet is finally attached to both sides of the material.

(Problems to be Solved by the Invention) In the former of the above-mentioned conventional techniques, it was not possible to simultaneously attach three masking tapes to the top surface and both side surfaces of the protrusion. In addition, in the latter technique, it is possible to use one wide masking tape and first attach the tape to the top surface of the protrusion, and then bend it and attach it to both sides. . However, in handling the masking tape, it is necessary to peel it off after painting is completed, and if a single wide masking tape is used, it is assumed that the peeling operation will be extremely complicated.

The purpose of the present invention is to eliminate the above-mentioned inconvenience and provide a masking device that can efficiently and uniformly apply three pieces of masking tape to the top surface and both side surfaces of the corresponding protrusions at the same time. .

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a device for applying masking tape to the upper surface of a protrusion formed on a workpiece and to both upwardly inclined side surfaces. An upper winding frame that releasably holds the masking tape and a lower pressing roll that presses the masking tape drawn out from the winding frame onto the upper surface of the protrusion. A first masking mechanism is provided at the rear of the frame, and an upper winding frame for holding the masking tape in a freely unwound manner, and a masking tape led out from the winding frame is pressed against each side of the protrusion. The invention is characterized in that a pair of second masking mechanisms comprising a lower pressure roll and a lower pressure roll are provided on the left and right sides, and the operating handle is provided near an intermediate portion of the frame.

(Function) When applying masking tape to the top surface and both sides of the protrusion, first press and apply one piece of masking tape to the top surface of the protrusion using the pressure roll of the first masking mechanism at the front, and then Attach two pieces of masking tape to both sides of the protrusion at the same time using the pressure rolls of the second left and right masking mechanisms at the rear.
In the end, it is possible to efficiently mask the top surface and both side surfaces of the protrusion in parallel with the three masking tapes, and by providing the operating handle near the middle part of the frame, it can be pressed evenly against all the pressing rolls. You can apply pressure and stick the three masking tapes evenly.

(Example) An example of the present invention will be explained with reference to the attached drawings.

In the drawings, reference numeral 1 denotes a frame extending longitudinally in the front-rear direction, and the frame 1 is provided with a hand-held operation handle 2 on the upper surface of the middle part thereof, and has an upper winding frame 4 for holding a masking tape 3 in a freely unwound manner; It should be provided with a lower pressure roll 5 that presses the tape 3 drawn out from the winding frame 4 toward the workpiece a, and according to the present invention, the winding frame 4 and the pressure roll 5 are combined as one set. , one pair at the center of the front of the handle 2, and two pairs on the left and right outer sides of the rear of the handle 2.
I prepared for the group.

In other words, the winding frame 4 is
The press roll 5 consists of a winding frame 4a and second winding frames 4b, 4b on both rear outer sides, and a first press roll 5a at the center of the front, second press rolls 5b on both rear outer sides,
5b, and furthermore, the tape 3 is made up of a first masking tape 3a at the center of the front and second masking tapes 3b, 3b at both outer sides of the rear.

To explain this in detail, in the illustrated example, the front part of the frame 1 is provided with a support arm 6 extending upward and a leg piece 7 extending downward. 5a and a pair of left and right support arms 8, 8 extending upward from the rear of the frame 1, and a pair of left and right leg pieces 1 extending downward.
6, 16, and the second winding frame 4b, 4b
and the second pressing rolls 5b, 5b are supported.

More specifically, in the illustrated example, the workpiece a is provided with a projection b extending in the length direction on its upper surface, and the first tape 3a described above is attached to the upper surface of the projection b, as shown in FIG. and the second tape 3b described above is applied to each of the left and right sides of the roll. The model is equipped with a pair of guide rolls 9, 9 on both outer sides guided by the
Further, as shown clearly in FIG. 6, for example, second guide rolls 10, 10 cooperating with the second guide rolls 10, 10 are connected to each spring 12,
It was designed to be able to move upwards against 12. Furthermore, as shown in FIG. 7, the second rolls 5b, 5b are pressed against both edges of the protrusion b from both outside sides and guided along this, and each tape 3b,
3b in a small width portion, and further behind it, for example, as clearly shown in FIG. The tape 3 is moved freely by the rolls 13, 13.
The remaining width portions of a and 3a are brought into pressure contact and also act as guide rolls.

The usage state of the present device is as clearly shown in FIG.
is gradually unwound from the first winding frame 4a and pressed against the upper surface of the protrusion b by the first pressing roll 5a,
The second masking tape 3b on each side is the second reel 4b.
The tapes 3a, 3b, 3b are gradually unwound and pressed against each side of the protrusion b by the second pressure roll 5b, so that three tapes 3a, 3b, 3b are placed on the workpiece a in parallel as shown in FIG. 9, for example. administered.

(Effect of the invention) As described above, according to the invention, by simply holding the operation handle and moving it forward, one masking tape is applied to the top surface of the protrusion by the first masking mechanism, and two masking tapes are applied to the left and right sides. Since the pair of second masking mechanisms can be applied to both sides of the protrusion at the same time, the work can be done easily and efficiently, and since the handle is located between these masking mechanisms, the entire structure is stable. It has advantages such as superior performance and simple and easy operation.

[Brief explanation of drawings]

Fig. 1 is a side view of an example of the proposed device, Fig. 2 is a plan view thereof, Fig. 3 is a rear view thereof, Fig. 4 is a side view of the device in use, and Fig. 5 is an enlarged view taken along the - line. A sectional view, FIG. 6 is a side view, FIGS. 7 and 8
The figure is an enlarged sectional view taken along the - and - lines in Fig. 4, and Fig. 9 is a perspective view of the workpiece in a masked state. 1...Frame, 2...Operation handle, 3...
Masking tape, 4... Winding frame, 5... Press roll, a... Work, 3a, 3b... First and second masking tape, 4a, 4b... First and second winding frame, 5
a, 5c...first and second pressure rolls.

Claims (1)

[Scope of utility model registration request] In a device that applies masking tape to the top surface of a protrusion formed on a workpiece and to both upwardly sloping side surfaces, the masking tape is held in the front part of a longitudinally longitudinal frame that has an operating handle so that it can be unwound. A first masking mechanism is provided, which is composed of an upper winding frame, and a lower pressing roll that presses the masking tape drawn out from the winding frame onto the upper surface of the protrusion. A pair of left and right second masking mechanisms are provided, each consisting of an upper winding frame that holds the winding frame so that it can be unwound and a lower pressure roll that presses the masking tape drawn out from the winding frame against each side of the protrusion; The masking device is further characterized in that the operation handle is provided near an intermediate portion of the frame.