JPH0631916U - Fixing structure of guide shoe in reciprocating saw - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a guide shoe fixing structure in a reciprocating saw that can fix and release the guide shoe without using a tool such as a wrench and can fix the guide shoe at an arbitrary position. [Structure] An elongated hole 13 in the front-rear direction is formed in a base portion 9 of a guide shoe 6 of a reciprocating saw 1, a bolt 14 is inserted into the elongated hole 13 and one end of the bolt 14 is screwed into a main body 3 and the other end of the bolt 14 is inserted. Is a lever 1 that can be rotated by the user
7, the guide shoe 6 can be tightened and released between the main body 3 and the lever 17 by rotating the lever 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a guide shoe fixing structure in a reciprocating saw.

[0002]

[Prior art]

 Generally, in a reciprocating saw, a structure has been proposed in which a protruding length from a main body of a guide shoe attached to a front portion of a main body of the reciprocating saw is adjusted so that a saw blade can be effectively used.

For example, in Japanese Utility Model Laid-Open No. 52-78879, two conical recesses are provided at two positions spaced apart in the longitudinal direction with respect to the rod of the guide shoe inserted in the body of the reciprocating saw, while the main body is provided with A structure has been proposed in which a fixing screw having a conical protrusion that fits into a recess is embedded and the protrusion of the fixing screw is fitted into one of the recesses of the rod.

Further, in US Pat. No. 5,007,172, partial circular grooves are formed laterally at equal intervals in the longitudinal direction on the upper surface of a rod of a guide shoe inserted into the main body of a reciprocating saw. A structure has been proposed in which a pin that can be pivotally operated is attached to the main body at a position where it engages with a partially circular groove of a rod through a lever and a position where the rod is disengaged, and a lever that allows the rod to be operated more is attached.

[0005]

[Problems to be solved by the device]

 In the structure disclosed in Japanese Utility Model Laid-Open No. 52-78879, the guide shoe can be fixed only at the concave portion of the rod, and the guide shoe can be fixed only at two positions corresponding to the concave portion. The location of the saw blade to be cut is also determined, and the saw blade cannot be effectively used over the entire cutting area. In addition, the fixing screw for fixing the guide shoe is embedded in the main body, and a tool such as a wrench is required to operate this fixing screw, which has the disadvantage that the fixing operation is inconvenient. Was there.

Further, in the structure of US Pat. No. 5,007,172, a tool such as a wrench is not required for the fixing operation and the releasing operation thereof, but the guide shoe is fixed at the position where the groove of the rod is formed. Since the above fixing cannot be performed, it is not possible to effectively utilize the entire cutting area of the saw blade as in the structure of Japanese Utility Model Laid-Open No. 52-78879. Further, since the guide shoe is fixed in position by the lateral engagement of the pin with the groove of the rod, a slight clearance between the pin and the groove of the rod causes rattling of the guide shoe, resulting in a secure It had the drawback that it could not be fixed securely.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems of the prior art, the present invention is a fixing structure of a guide shoe attached to the body of a reciprocating saw, wherein a long hole in the front-rear direction is formed in the base portion of the guide shoe, and a screw member is formed in the long hole. Through one end, and one end of which is screwed into the main body, and the other end of the screw member is attached with a lever that can be rotated by a user. By rotating the lever, the guide shoe is attached to the main body and the lever. It is configured so that it can be tightened and released.

[0008]

[Action]

 In the guide shoe fixing structure of the present invention, the guide shoe can be fixed and released by rotating the lever without using a tool such as a wrench. Further, the guide shoe can be fixed at an arbitrary position by loosening the tightening by the lever and changing the position of the elongated hole of the guide shoe through which the screw member is inserted.

[0009]

【Example】

 An embodiment of the present invention will now be described with reference to the drawings. Inside the hollow main body 3 covered by the rubber cover 2 of the reciprocating saw 1 of which only the front portion is shown in FIG. A slider 4 to which a saw blade B is attached is supported via a slider 4a on a slider guide 5 so as to be slidable back and forth. A conversion mechanism for converting the rotation of a motor (not shown) inside the main body 3 into the reciprocating motion of the slider 4 back and forth, and the rotation of the motor into the up and down reciprocating motion of the slider guide 5 supporting the slider 4 ( (Not shown) is disposed, and the saw blade B is driven by the forward and backward reciprocating motion of the slider 4 and the up and down reciprocating swing through the slider guide 5, and is used for cutting the work.

A guide shoe 6 is attached to the front portion of the main body 3, and the guide shoe 6 has an opening 7 through which the saw blade B is inserted, and a guide plate 8 for contacting with a work, It has a support plate 10 having a flat plate-shaped base portion 9 inserted between the front lower portion 2a of the cover 2 and the main body 3. A downwardly curved guard portion 2b is integrally formed at the front end of the front lower portion 2a of the cover 2 at a portion facing the guide plate 8.

The guide plate 8 is rotatably connected to the tip of the support plate 10 via a pin 11. A mountain-shaped contact surface 10a adjacent to the back surface of the guide plate 8 is formed at the tip of the support plate 10, and the range of rotation of the guide plate 8 with respect to the support plate 10 is shown from a position substantially perpendicular to the support plate 10. It is restricted to a position that is slightly tilted clockwise.

The main body 3 has a longitudinal groove 12 (see FIG. 2) into which the base portion 9 of the support plate 10 fits at a portion facing the front lower portion 2 a of the cover 2, and the base portion 9 is formed by the groove 12 1. Is housed so as to be slidable back and forth between the front lower part 2a and immovable laterally.

As shown in FIG. 4, an elongated hole 13 is formed in the base portion 9 of the support plate 10 along the longitudinal direction of the support plate 10. A bolt 14 (a hexagon bolt in this embodiment) is formed in the elongated hole 13. ) Shaft portion 14a is inserted in the direction perpendicular to the base portion 9. The shaft portion 14a is inserted into the elongated hole 13 through a corresponding opening portion 15 formed in the front lower portion 2a of the cover 2, and the end portion thereof is a nut portion integrally formed in the bottom portion of the groove 12 of the main body 3. It is screwed to 16. The head 14b of the bolt 14 is connected to the lever 17 on the outside of the main body 3, and the lever 17 has a cantilever shape having a connecting end with the head 14b of the bolt 14 as a supporting end. It is arranged along the lower surface of the lower portion 2a.

Next, the connection structure of the head 14b of the bolt 14 with the lever 17 will be described. A star-shaped fitting groove 18 into which the head 14b is fitted is formed on the back side of one end of the lever 17. The bolt 14 can be rotated integrally with the lever 17 by fitting with the fitting groove 18 of the head portion 14b. Further, a plate 19 for axially fixing the lever 17 to the head 14b of the bolt 14 communicates with the fitting groove 18 on the rear surface side of the lever 17, as shown in FIG. It is mounted in the holding groove 20 which is shallower than the above.

The plate 19 has an insertion hole 21 at one end that is slightly larger in diameter than the shaft portion 14a through which the shaft portion 14a of the bolt 14 is inserted. The one end side is in contact with the upper peripheral edge 22 of the fitting groove 18 which is substantially flush with the upper end edge of the head 14b of the bolt 14, and the upper peripheral edge 22 forms a part of the bottom surface of the holding groove 20. Is forming.

A screw hole 24 into which a countersunk screw 23 mounted in the lever 17 in an embedded state is screwed is formed at the other end of the plate 19, and the plate screw 23 is tightened to tighten the plate 19. The other end side of the bolt 14 is pressure-bonded to the bottom surface of the holding groove 20, and the one end side is held in contact with the upper peripheral edge 22 of the fitting groove 18, so that the head portion 14b of the bolt 14 is axially separated from the lever 17. It holds disabled. The one end of the plate 19 is fixed by the countersunk screw 23, and the upper surface thereof is set to be substantially flush with the upper surface, that is, the back surface of the lever 17, and the plate 19 covers the cover 2 when the lever 17 is rotated. It does not interfere with the lower surface of the front lower portion 2a.

An annular spacer 25 is interposed on the shaft portion 14 a of the bolt 14 between the base portion 9 of the support plate 10 and the plate 19 of the lever 17.

With the above configuration, the lever 17 allows the operator to rotate the bolt 14 while preventing the bolt 14 from being detached from the head 14b. By rotating the bolt 14, the base portion 9 of the support plate 10 can be tightened between the nut portion 16 of the main body 3 and the spacer 25, that is, between the bottom surface of the groove 12 of the main body 3 and the spacer 25. The relative position of the lever 17 and the bolt 14 is such that the lever 17 rotates rearward of the bolt 14 and is substantially parallel to the base 9 of the support plate 10 as shown in FIG. The base portion 9 is set to be in a tightened state in a state of being substantially parallel to the longitudinal direction of 3.

Next, the operation of the above embodiment will be described. First, from the tightening state of the base portion 9 of the support plate 10 by the bolt 14 shown in FIG. When it is rotated counterclockwise to the position of about 90 ° indicated by the imaginary line as shown by, the tightened state of the base portion 9 by the bolt 14 is loosened, and in this state, the guide shoe 6 passes through the elongated hole 13 of the base portion 9. It becomes movable with respect to the bolt 14, and the user holds the guide plate 8 and guides the guide shoe 6 to an appropriate position, for example, to a position shown by an imaginary line in the figure, along with the guide along the groove 12 of the base 9. Can be done smoothly.

After moving the guide shoe 6 to a desired position and turning the lever 17 in the opposite direction to return it to the position shown by the solid line in FIG. 4, the base 9 is tightened by the bolt 14, and the guide shoe 6 is fixed in position. Then, the cutting operation with the saw blade B can be performed subsequently.

That is, in the support structure of the guide shoe 6 of the present embodiment, the position of the guide shoe 6 can be fixed and released only by the turning operation of the lever 17, and the long hole 13 of the base 9 can be fixed. It can be fixed at any position within the length range. Further, the lever 17 is arranged along the lower portion of the main body 3, and in the tightened state, the lever 17 is set to the rearward rotation position and substantially parallel to the longitudinal direction of the main body 3. The lever 17 does not project laterally or downwardly of the main body 3 in the operating state of the reciprocating saw 1, that is, in the cutting work state by the saw blade B, and it is possible to prevent the lever 17 from being unintentionally released from being fixed, and the user grips the main body 3. In this state, even when the reciprocating saw 1 is in operation, the position of the guide shoe 6 can be easily changed by operating the lever 17 with the hand holding the main body 3.

[0022]

[Effect of device]

 In the guide shoe fixing structure of the present invention, the guide shoe can be fixed and released by turning the lever without the need for a tool such as a lent, so that the position adjustment operation of the guide shoe is simplified. Have. In addition, the guide shoe can be fixed at any position by loosening the tightening by the lever and changing the position of the elongated hole of the guide shoe through which the screw member is inserted, so that the saw blade can be used effectively. And has the advantage of increasing the life of the saw blade.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional view of a main part showing a guide shoe fixing structure in a reciprocating saw according to an embodiment of the present invention.

2 is a cross-sectional view taken along the line II-II of FIG. 1 in which the main body is omitted and only its cover is shown.

FIG. 3 is an enlarged view showing a fitted state of a plate with respect to the lever shown in FIG.

FIG. 4 is an explanatory view showing the positional relationship between the guide shoe and the lever of FIG. 1 together with different operating states.

[Explanation of symbols]

 1 Reciprocating saw 3 Main body 6 Guide shoe 9 Base 13 Long hole 14 Bolt 16 Nut part 17 Lever

[Procedure amendment]

[Submission date] March 17, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Name of device

[Correction method] Change

[Correction content]

[Title of device] Fixing structure of guide shoe in reciprocating saw

Claims (1)

[Scope of utility model registration request] 1. A fixing structure of a guide shoe attached to a main body of a reciprocating saw, wherein an elongated hole in a front-rear direction is formed in a base portion of the guide shoe, and a screw member is inserted into the elongated hole to form one end thereof. It is screwed to the main body, and a lever that can be rotated by the user is attached to the other end of the screw member, and the guide shoe can be tightened and released between the main body and the lever by rotating the lever. A structure for fixing a guide shoe in a reciprocating saw, which is characterized in that