JPS6027922Y2 - Handle on tape measure device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a handle provided on one end surface of a winding drum in order to wind a tape measure tape around the outer periphery of a winding drum in a tape measure device, and more particularly to This invention relates to a handle that can be fixed to a winding drum when the handle is erected in a concave handle housing formed on one end surface of the handle.

Conventionally, in case-storable tape measure devices, the handle is attached to one end of the winding drum with a pin in a state that allows it to be turned 180 degrees (it can be raised and lowered), and when a tape measure tape is not used, the handle is installed inside the drum. In addition to being able to be stored, the tape measure tape is wound around the outer periphery of the drum by inverting the handle 180 degrees and moving the knob attached to the tip of the handle in a circular motion. There is.

The handle is attached via a pin to a concave handle storage part formed on one end surface of the winding drum, and the handle is attached to the winding drum when the handle is stored in the storage part and when it is raised from inside the storage part. The handle is fixed by associating an elastic member such as a leaf spring with the handle and the drum.

By the way, in the above-mentioned conventional tape measure device, the positioning of the winding drum of the handle is unstable when the handle is erected, and when the handle is rotated, the handle rotates about the pin as a fulcrum midway through the operation. As a result, the handle could not be rotated smoothly.

Therefore, the present invention has been proposed in order to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a new handle that can reliably position the handle on the winding drum, especially when standing up.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

As shown in FIGS. 1 and 2, the tape measure device 1 according to the present invention includes a tape measure storage case 5 in which a front cover 2 and a back cover 3 are assembled using screws 4 and 4. It consists of a winding drum 7 for winding the measuring tape 6 into the case 5, and a handle 8 for rotating the drum 7.

The case 5, the winding drum 7, and the handle 8 are individually integrally molded from ABS resin.

The outer periphery 7a of the drum 7 is fitted into a circular opening 9 formed in the center of the front cover 2 of the case 5.

The drum 7 is prevented from detaching from the case 5 by an annular flange portion 10 formed on the outer peripheral portion 7a.

At the center of the other end surface (inner surface) of the drum 7, a hollow winding rotating portion 11 for winding the measuring tape 6 is protruded.

The inner circumferential portion 11a on the leading end side of the winding rotary portion 11 is fitted into a positioning annular portion 12 protruding from the center portion of the inner surface of the back cover 3, so that when the drum 7 is rotated, This prevents the winding rotation section 11 from moving in the radial direction.

A handle 8 for rotating the drum 7 is provided on one end surface 13 of the winding drum 7 configured in this manner.

As shown in FIG. 3, the handle 8 is constructed by connecting two supports 1114 and 15 arranged in parallel at a predetermined distance from each other at the tip 8a side.

The proximal ends 14a, 15a of each of the support arms 14.15 are
A cylindrical projection 16.16, which serves as a pivot, projects from the outer surface of the side.

These protrusions 16, 16 are fitted into recesses 1B, 18 formed opposite to each other in side walls 17A, 17B in a recessed groove 40, which is an embodiment of a recessed handle, formed on one end surface 13 of the drum 7. The handle 8 is supported on one end surface 13 of the drum 7 so as to be able to rise and fall.

That is, the handle 8 is rotatable about the protrusions 16, 16 as fulcrums.

and the proximal end 14a of each support arm 14.15.

The outer periphery of the drum 7 is provided at the bottom 40a in the concave groove 40 of the drum 7 so that when the handle 8 is raised, the handle 8 is positioned at a predetermined angle with respect to the one end surface 13 of the drum 7. A first positioning groove 20 is formed to engage with a protruding rib 19 having a semicircular cross section.

Further, on the outer periphery of the proximal ends 14a and 15a of each of the support arms 14.15, the ribs 1 are provided so that the handle 8 can be stably positioned when it is housed in the concave groove 40.
A second positioning groove 21 that engages with the positioning member 9 is formed.

That is, each of these positioning grooves 20.21 and the rib 1
Due to the engagement relationship with the drum 9, the support state of the handle 8 to the drum 7 is stabilized when the handle 8 is raised and when it is stored.

Further, on the outer periphery of the protrusion 16.
As shown in the figure, when the handle 8 is raised, the recesses 18, 1
A positioning plane 51.51 is formed which fits into a notch plane 50.50 formed in the peripheral walls 18a, 18a in the inner circumferential wall 18a.

Therefore, the protrusion 16 provided on the outside of the other end of the handle 8
．． When the handle 8 is housed, the support arms 14 and 15 are slightly bent so that the tips of the protrusions 16, 16 are engaged with the recesses 18, 18.

The handle 8 is elastically biased so that even if the support arm 14.15 is bent inward, the support arm 14.15 immediately returns to its original state by the arcuate holding arm 40. The handle 8 will not come off the drum 7.

Then, when the handle 8 is raised, the protrusion 16.16 rotates, and when the handle 8 is raised, the positioning plane 51.51 of the protrusion 16.16 and the cutout plane 50.50 of the recesses 18, 18 are aligned. When engaged, the handle 8 is positioned and fixed.

Therefore, when the handle 8 is rotated to stand up and take out a tape measure, unnecessary rotation about the protrusion 16, 16 of the handle 8 as a fulcrum can be prevented.

Note that when the upright handle 8 is stored in the handle storage portion of the drum 7, the protrusions 16, 16
The support arms 14, 15 are pivotable by flexing inwardly toward each other to a position in which they are pivotable relative to the recesses 18,18.

On the other hand, an inclined surface 22 is formed on the tip 8a side of the handle 8 so that the width becomes narrower from the lower end to the upper end, so that when the handle 8 is raised from the concave groove 40, fingers can smoothly move the handle 8. It is configured to enter inside the tip 8a side.

A cylindrical body 24 into which a cylindrical knob 23 integrally molded from ABS resin is press-fitted is inserted into the distal end side between the support arms 14 and 15, and this cylindrical body 24 is supported by the pin 25. It is rotatably supported between arms 14 and 15.

That is, this knob 23 is attached to the support arm 1 as shown in FIG.
4.15 from the position where the lower end surface 26a of the flange portion 26 of the knob 23 abuts on the one end surfaces 14A and 15A of As shown by the arrow in FIG. 4, it can swing freely within the range up to the dotted chain line) using the pin 25 as a fulcrum.

When the handle 8 is stored, this knob 23 is
It is inserted into the winding rotation section 11 through the opening 27 formed in the bottom 40a of the concave groove 40.

Note that the handle 8 has an arch-shaped retainer that elastically biases the support arm 14.15 so that it immediately returns to its original state (parallel state) even if the support arm 14.15 is bent inward. An arm 70 is provided.

That is, when the support arms 14, 15 are pressed inward and the handle 8 is attached to the winding drum 7, the support arms 14, 15 return to a parallel state when the assembly is completed, so that the protrusions 16, 16 and The fitted state with the recess 18.18 is stable.

Furthermore, even if a force is applied that presses the support arms 14 and 15 inward when the handle 8 is rotated, this force can be compensated for by the biasing force of the holding arm 70, so that the handle 8 is inadvertently moved. It is possible to prevent the drum from separating from the drum 7 at any time.

In the above embodiment, a case where the handle 8 is raised from within the concave groove 40 as shown in FIG. 6 will be described.

The tip 8a of the handle 8 is lifted to release the engagement between the second positioning groove 21 of the handle 8 and the rib 19 of the winding drum 7 shown in FIG.

Then, the handle 8 is moved to the second position using the protrusion 16.16 as a fulcrum.
Rotate clockwise in the figure.

Then, the proximal ends 14a, 15a of each support arm 14.15
The outer periphery of the side moves over the rib 19.

At this time, since the outer circumference and the ribs 19 are pressed against each other, the point where the outer circumference crosses over is still between the second positioning groove 21 and the first positioning groove 20 at the outer circumference. If the handle 8 is closer to the second positioning groove 21 than the intermediate point between the two, the handle 8 is returned counterclockwise in FIG. 19 engage.

In addition, if the point where the outer circumference crosses over is closer to the first positioning groove 20 than the intermediate point, the handle 8 is further rotated clockwise in FIG. The groove portion 20 is brought into engagement with the rib 19.

At this time, the positioning plane 5 of the protrusion 16.16
1, 51 fit into the cutout plane 50.50 in the recess 18.

That is, as shown in FIG. 7, the handle 8 is reliably positioned in a state where it is raised at a predetermined angle with respect to one end surface 13 of the winding drum 7.

As described above, according to the present invention, when the handle is stood up to wind up the tape measure tape onto the winding drum, the handle is reliably positioned with respect to the winding drum, and the handle does not move when the handle is rotated. It is possible to reliably prevent accidental displacement of the position.

[Brief explanation of drawings]

Fig. 1 is a plan view of a tape measure device showing an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line A-A with some parts omitted from Fig. 1, Fig. 3 is an exploded perspective view of the handle, and Fig. 4 is the above Side view of handle, 5th
The figure is a perspective view illustrating the engagement relationship between the winding drum and the handle. FIG. 6 is a longitudinal sectional view illustrating a state in which the handle and the winding drum are engaged when the handle is erected, and FIG. 7 is a longitudinal sectional view of the tape measure device when the handle is erected. 1... Tape measure device, 7... Winding drum,
Death...Handle, 13...One end surface, 14
．． 15... Support arm, 14a, 15a...
・Proximal end, 16, 16...Protrusion, 17A, 17B
...Side wall, 18.18 ...Recess, 19
...Rib, 20...First positioning groove, 21...Second positioning groove, 40.
...Concave groove, 50, 50... Notch plane, 51, 51... Positioning plane.

Claims (1)

[Scope of utility model registration request] A handle is provided on one end surface of the winding drum so that it can be raised and lowered, and the handle is formed by connecting two supporting arms that are integrally molded from synthetic resin and arranged in parallel at a predetermined distance apart at one end. The outer periphery of the other end of each support arm has a protrusion that fits into a recess formed opposite to both side walls of the concave handle housing formed on one surface of the winding drum. The first and second positioning grooves are formed in each of the protrusions to engage with ribs protruding from the bottom wall of the housing when the handle is raised from inside the housing and when the handle is stored in the housing. A handle for a tape measure device, characterized in that a positioning plane is formed on the outer circumference of the handle to fit into a notch plane formed in the peripheral wall in the recess when the handle is raised.