JPH0614901U - Tape measure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a tape measure in which a shock absorbing device having excellent durability and smooth movement is attached to a tape entrance / exit of a case. [Structure] A port member 5 slidable in the tape loading / unloading direction, and a coil spring 6 for urging the port member 5 toward the tape loading / unloading port 12
The shock absorbing device 4 consisting of and is attached to the tape inlet / outlet 12 of the case 1. The mouth member 5 has a locking surface 51 at the front end for locking the hooking tool 21 at the tip of the tape measure 2 and a tape sliding surface 52 at the upper surface. The coil spring 6 has one end inserted into an insertion hole 53 formed in the rear end of the mouth member 5 in the horizontal direction and the other end facing the rear end of the mouth member 5 and swinging on a wall surface 14 erected on the case 1. Abut freely.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tape measure having a shock absorbing device attached to a tape entrance / exit.

[0002]

[Prior art]

 A tape measure tape having an L-shaped hooking tool attached to the tip was housed in the case by a winding spring, and the hooking tool of the housed tape measure tape was locked at the tape inlet / outlet of the case. In a tape measure, when the tape measure is stored, the L-shaped hooking device attached to the tip of the tape measure violently collides with the tape inlet / outlet, so that the hook sometimes breaks.

Therefore, in the conventional tape measure, a shock absorbing device utilizing the repulsive elastic force of synthetic resin is attached to the tape inlet / outlet, and a hooking device is locked to the shock absorbing device. The locking impact of the stopper was weakened to prevent damage to the hook.

[0004]

[Problems to be solved by the device]

 However, since the shock absorbing device attached to the conventional tape measure as described above uses the repulsive elastic force of the synthetic resin, not only the motion of the shock absorbing device is not smooth, but also a strong locking impact force above a certain level. There was a drawback that it would not work unless was added. Further, if the latching impact of the latch is frequently repeated in the impact absorbing device, the synthetic resin may be fatigued and the impact resilience may be weakened or damaged.

In view of the above, the present invention solves the above-mentioned problems of the related art, and provides a tape measure in which a shock absorber having excellent durability and smooth movement is attached to the tape inlet / outlet of the case. is there.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following configuration. That is, in the tape measure according to the present invention, a tape measure tape having an L-shaped hooking tool attached to the tip is housed in a case by a winding spring, and the hooking tool of the housed tape measure tape is a tape inlet / outlet. A tape measure which is adapted to be locked to a tape, and a device for absorbing the locking shock of the hooking device is attached to the tape entrance / exit, and the shock absorbing device includes a mouth member slidable in the tape entrance / exit direction, The mouth member is formed of a coil spring for urging the mouth member in the tape inlet / outlet direction, and the mouth member has a locking surface at the front end for locking the latch and a tape sliding surface on the upper surface. The coil spring has one end inserted into an insertion hole formed in the rear end of the mouth member in the horizontal direction, and the other end facing the rear end of the mouth member and swingably abutting against the wall surface erected on the case. It is characterized by being done.

[0007]

[Action]

 According to the tape measure of the present invention, when the hook of the tape measure stored is locked to the locking surface of the mouth member provided at the tape entrance / exit, the tape member acts on the tape measure against the repulsive elastic force of the coil spring. The sliding impact of the hooking device is absorbed by the coil spring, and damage to the hooking device is prevented.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view showing an embodiment of a tape measure of the present invention, FIG. 2 is an explanatory view of the internal structure of the tape measure of FIG. 1, FIG. 3 shows a mouth member of the shock absorbing device of the tape measure of FIG. A perspective view, (b) is a front perspective view, and FIG. 4 is a IV-IV sectional view of FIG.

1 and 2, reference numeral 1 is a case. The case is made of synthetic resin, metal or the like, and a spindle 11 is projectingly provided at the substantially center of the inner wall of the case, and a tape inlet / outlet 12 is formed at the lower part of the peripheral wall of the case. In the present embodiment, the peripheral walls facing each other are formed in parallel, and the level 13 is provided on one of the peripheral walls so that horizontal measurement can be performed, but it is not necessary to provide it in particular.

Reference numeral 2 denotes a tape measure tape made of metal, fiber reinforced synthetic resin or the like, and the cross-sectional shape thereof is not particularly limited and may be flat or arcuate, but in general, the arcuate tape is self-supporting. It is preferably used. Then, the front surface and the back surface of the tape measure 2 are appropriately graduated.

Further, an L-shaped hooking tool 21 is attached to the tip of the tape measure tape 2 so that the hooking tool 21 can be hooked on an object to be measured and the tape measure tape 2 is stored. At this time, the hooking tool 21 is locked to the tape inlet / outlet 12 so that the tip of the tape measure 2 does not enter the case 1.

Reference numeral 3 denotes a reel around which the tape measure 2 is wound, and the reel 3 is rotatably attached to a support shaft 11 of the case 1 and wound inside the reel 3. When the tape measure tape 2 is pulled out, the winding belt 31 applies a rotational force to the reel 3 to wind up and store the tape measure tape 2.

Reference numeral 4 denotes a shock absorbing device attached to the tape entrance / exit 12, and the shock absorbing device 4 includes a mouth member 5 slidably provided in the tape entrance / exit direction, and the mouth member 5 in the tape entrance / exit 12 direction. And a coil spring 6 for urging

As shown in FIGS. 3 to 4, the mouth member 5 is formed with a locking surface 51 at a front end thereof which is substantially perpendicular to the direction in which the tape measure 2 moves in and out, and when the tape measure 2 is stored, the inside of the hook 21 is held. The abutment member 21 is brought into contact with the engaging surface 51 so that the latch 21 is engaged. Further, a tape sliding surface 52 having a shape substantially corresponding to the cross-sectional shape of the tape measure 2 is formed on the upper surface of the mouth member 5, and when the tape measure tape 2 is pulled out or rolled in, the tape measure is placed on the tape sliding surface 52. The back surface of the tape 2 slides smoothly. If the mouth member 5 is made of synthetic resin such as polyamide resin or polyacetal resin in order to make the tape measure 2 slide more smoothly, not only the tape measure 2 will slide better, but also the tape measure 2 It is preferable because it has no scratches.

The coil spring 6 is made of metal such as steel, and has one end inserted into an insertion hole 53 formed in the rear end of the mouth member 5 in the horizontal direction, and the other end at the rear end of the mouth member 5 with an appropriate interval. It opposes the wall surface 14 standing upright on the case 1 so as to swing freely, and urges the mouth member 5 toward the tape loading / unloading port 12.

That is, when the coil spring 6 absorbs the locking impact of the latch 21, the locking impact of the latch 21 is applied to the locking surface 51 of the mouth member 5 from an oblique direction, and the coil spring 6 is inclined. In order to prevent the coil spring 6 from bending or coming off even if a pressing force is applied, both ends of the coil spring 6 are not held, and only one end is inserted and held in an insertion hole 53 formed in the rear end of the mouth member 5 in the horizontal direction. The other end is in rockable contact with a wall surface 14 provided upright on the case 1.

The wall surface 14 is smooth so that the other end of the coil spring 6, which is swingably abutted on the wall surface 14 provided upright on the case 1, swings smoothly in accordance with the movement of the mouth member 5. It is preferable that the surface is formed. The depth of the insertion hole 53 may be appropriately determined from the relationship between the magnitude of the locking impact force of the latch 21 and the diameter of the coil spring 6, etc., but in general, it is 1/2 or more of the length of the coil spring 6. However, it is not particularly limited.

When the hook 21 of the tape measure 2 stored therein is locked to the locking surface 51 of the mouth member 5 by the shock absorbing device 4 including the mouth member 5 and the coil spring 6, The mouth member 5 slides in the retracting direction of the tape measure 2 against the repulsive elastic force of the coil spring 6 that urges the member 5 toward the tape inlet / outlet 12, so that the locking impact of the latch 21 is absorbed. It is done like this.

Although there may be only one coil spring 6 for urging the mouth member 5 toward the tape inlet / outlet 12, as shown in FIG. 3, two insertion holes 53 are horizontally provided along the width direction of the rear end of the mouth member 5. If the coil springs 6 are bored and the coil springs 6 are inserted into the respective insertion holes 53, and the two parallel coil springs 6 urge the mouth member 5 toward the tape inlet / outlet port 12, Even if a stopping impact is applied to the locking surface 51 of the mouth member 5 from an oblique direction, a repulsive elastic force acts on each coil spring 6 to more stably absorb the locking impact.

[0020]

[Effect of device]

 As described above, in the tape measure of the present invention, when the shock absorbing device including the mouth member and the coil spring is attached to the tape entrance and exit, and the hook of the accommodated tape measure is locked to the locking surface of the mouth member. The latching impact of the latching device is absorbed by the latching force of the latching device being absorbed by the mouthing member sliding in the retracting direction of the tape measure against the repulsive elastic force of the coil spring that biases the porting member in the tape loading / unloading direction. Is prevented from being damaged. Further, since the shock absorbing device utilizes the repulsive elastic force of the coil spring, the shock absorbing device has smooth movement and excellent durability as compared with the conventional shock absorbing device utilizing the repulsive elastic force of synthetic resin.

Further, the coil spring of the shock absorbing device described above does not hold the both ends, but only one end is inserted and held in the insertion hole formed in the rear end of the mouth member in the horizontal direction, and the other end contacts the wall surface of the case. Since it is in contact with and swingable, even if the locking impact of the latch is applied to the locking surface of the mouth member from an oblique direction and the coil spring is applied with an oblique pressing force, the coil spring may bend. Since it does not come off and only one end of the coil spring needs to be inserted into the insertion hole at the time of assembly, the assembly is easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a tape measure of the present invention.

FIG. 2 is an explanatory diagram of the internal structure of the tape measure shown in FIG.

FIG. 3 shows a mouth member of the shock absorbing device of the tape measure of FIG.
(A) is a rear perspective view and (b) is a front perspective view.

4 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 1 Case 12 Tape entrance / exit 14 Wall surface 2 Tape measure 21 Locking tool 3 Reel 31 Winding spring 4 Impact absorbing device 5 Exit member 51 Locking surface 52 Tape sliding surface 53 Insert hole 6 Coil spring

Claims (1)

[Scope of utility model registration request] 1. A tape measure tape having an L-shaped hooking tool attached to the tip thereof is housed in a case by a winding spring, and the hooking tool of the housed tape measure tape is locked at a tape inlet / outlet of the case. A tape measure configured as described above, wherein a device for absorbing a locking impact of a hooking device is attached to a tape entrance / exit, and the impact absorption device includes a mouth member slidable in a tape entrance / exit direction, and the mouth member to a tape. The mouth member is formed with a coil spring for urging in the direction of the entrance / exit, and a locking surface for locking the latch is formed at the front end of the mouth member, and a tape sliding surface is formed on the upper surface of the mouth member. A tape measure inserted into an insertion hole formed in the rear end of the mouth member in the horizontal direction, and the other end of which is swingably abutted against a wall surface erected on the case facing the rear end of the mouth member.