TWI571315B - Rubber gun holder bracket fixed sheet elastic preload structure - Google Patents

Description

Glue gun bearing bracket fixing piece elastic preloading structure

The invention relates to the technical field of hand tools, in particular to an elastic preloading structure of a glue gun carrier bracket fixing piece which increases the assembly stability of the glue gun assembly.

The structure of the conventional glue gun generally comprises a gun body, a bracket mounted on the front end of the gun body, a fixing piece disposed between the gun body and the carrier bracket, and a lock attached to the inner side of the bracket. The piece and the plurality of locking pieces and the fixing piece are screwed to the locking component of the gun body. A predetermined stress is applied between the bracket and the gun body through the fixing piece.

The end face of the conventional fixing piece and the bearing bracket is easy to be flattened due to the tolerance of the production process of the carrier, such as the thickness of the baking varnish, the thickness of the plate, or the flatness of the plate, etc., so that the bracket and the fixing piece cannot be flattened. There will be too much or too little spacing. When the gap between the carrier bracket and the fixing piece is too large, the bearing bracket will be shaken relative to the gun body. On the other hand, if the bracket and the fixing piece are too close together, the inconvenience of the rubber can installation and the lack of rotation adjustment of the carrier are also caused.

In view of the above problems and deficiencies of the prior art, the main object of the present invention is to provide an elastic preloading structure for a glue gun carrier bracket. By the design of the structure, under the premise of not adding components, the lack of assembly and inconvenience of the conventional glue gun component assembly is overcome.

According to the above object of the present invention, an elastic preloading structure of a glue gun carrier bracket fixing piece is provided, the glue gun includes a bracket and a gun body connected to each other, and the fixing piece is disposed on the bearing bracket and the gun Between the bodies; wherein the fixing piece has a plurality of elastic portions integrally formed. By the composition of the above-mentioned members, each elastic portion abuts against the bracket to provide a pre-stressing force to the bracket, so as to avoid the bracket being connected to the gun body due to tolerances in the production process, If the gap is too large, the bracket will be shaken, or excessively tight, resulting in the lack of support bracket adjustment and inconvenient installation of the canister.

10‧‧‧Fixed tablets

11‧‧‧ positioning ring

12‧‧‧ Positioning column

13‧‧‧Perforation

14‧‧‧Flexible Department

142‧‧‧ activity slot

144‧‧‧ elastic film

20‧‧‧ gun body

22‧‧‧Lock end face

222‧‧‧Keyhole

224‧‧‧Positioning holes

30‧‧‧ bracket

32‧‧‧Locks

322‧‧‧Locking shaft hole

324‧‧‧Lock sheet perforation

34‧‧‧ bracket shaft hole

40‧‧‧Fixed tablets

42‧‧‧Flexible Department

422‧‧‧ activity slot

424‧‧‧Elastic film

Figure 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the embodiment shown in Fig. 1.

Fig. 3 is a perspective view showing the fixing piece of the present invention.

Fig. 4 is a cross-sectional view taken along line 4-4 of Fig. 3;

Fig. 5 is a view showing another perspective of the embodiment shown in Fig. 1.

Fig. 6 is a cross-sectional view taken along line 6-6 of Fig. 5;

Figure 7 is a cross-sectional view taken along line 7-7 of Figure 5;

Figure 8 is a schematic view showing another embodiment of the fixing sheet of the present invention.

Hereinafter, the embodiment of the elastic preloading structure of the rubber gun carrier bracket fixing piece of the present invention will be further described with reference to the related drawings. To facilitate the understanding of the embodiments of the present invention, the same components are denoted by the same reference numerals.

Referring to Figures 1 to 4, the fixing piece 10 of the present invention is disposed between the gun body 20 of the glue gun and the carrier bracket 30, wherein the gun body 20 (known in the art) is used to provide a user grip. Hold and give drive power. The gun body 20 has at least one locking end surface 22 for locking the bracket 30 and a plurality of locking holes 222 and positioning holes 224 disposed on the locking end surface 22.

The carrier 30 (known in the art) is used to provide hose accommodation. The bracket 30 is coupled to the gun body 20 by a locking piece 32 (known in the art). The end surface of the bracket 30 that abuts the fixing piece 10 has at least one bracket shaft hole 34. The locking piece 32 has a locking plate hole 322 corresponding to the bracket shaft hole 34 and a plurality of locking plate holes 324 disposed along the locking plate shaft hole 322.

The fixing piece 10 has a positioning ring portion 11, a plurality of positioning posts 12, a plurality of through holes 13, and a plurality of elastic portions 14. The positioning ring portion 11 is protruded from the front end surface of the fixing piece 10, and provides a set position of the bracket shaft hole 34, and has a fixing piece shaft hole concentrically (conventional art). The positioning posts 12 are protruded from the rear end surface of the fixing piece 10 and matched with the positioning holes 224 of the gun body 20. The perforations 13 are respectively matched with the locking holes 222 of the gun body 10 and the locking plate perforations 324 of the locking piece 32 to provide locking engagement of the locking elements.

As described above, the elastic portions 14 are disposed on the front end surface of the fixing piece 10 along the positioning ring portion 11 and are distributed in a center of the positioning ring portion 11 in a cross shape, including a cross shape, a shape, or a triangle. More than one elastic preload. Each of the elastic portions 14 has a movable slot 142 and an elastic piece 144 extending along the extending direction of the movable slot 142. The elastic piece 144 partially protrudes from the front end surface of the fixing piece 10, and is free when pressed. Retired within the active slot 142. When implemented, the fixing sheet 10 may be integrally formed by an injection molding process.

Therefore, the above is a description of the elastic preloading structure of the glue gun carrier bracket fixing piece, the components of each part and the assembling manner according to a preferred embodiment of the present invention. The operating characteristics of the embodiment of the present invention are further described below.

Referring to FIGS. 5-7, the positioning post 12 of the fixing piece 10 passing through the rear end surface corresponds to the positioning hole 224 of the gun body 20, and the setting of the fixing piece 10 to the locking end face 22 of the gun body 20 is quickly achieved. The bracket 30 (locking piece 32) can be positioned through the bracket shaft hole 34 to position the positioning ring portion 11, so as to facilitate the positioning of the bracket 30, and then cooperate with the locking member to extend the locking piece 32 of the locking piece 32, the fixing piece After the perforation 13 of 10, the screw hole 222 of the gun body 20 is screwed to complete the assembly of the gun body 20, the fixing piece 10, and the carrier bracket 30.

When the gun body 20, the fixing piece 10, and the bracket 30 are locked, when the predetermined end surface of the bracket 30 abuts against the front end surface of the fixing piece 10, the elastic piece 144 of the elastic portion 14 provides elastic pre-stress, and the support is relieved. The frame 30 abuts the tolerance of the end face, so that the carrier bracket 30 can be properly connected to the gun body 20.

Please refer to FIG. 8 , which is the second embodiment of the fixing piece 40 of the present invention. The elastic portion 42 has a movable slot 422 and an elastic piece 424 suspended along the extending direction of the movable slot 422, wherein; One end of the elastic piece 424 is fixed to one end of the movable slot 422, and the other end of the elastic piece 424 is a free end extending in the extending direction of the movable slot 422, overhanging the movable slot 422 and protruding from the front end surface of the fixing piece 40. In practice, the free ends of the elastic pieces 424 are preferably disposed above, below, or left and right. And the elastic portions 42 of the fixing piece 40 can be integrally formed by a stamping process.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the embodiments of the present invention. Changes that are well known to those skilled in the art are still within the scope of the invention.

10‧‧‧Fixed tablets

20‧‧‧ gun body

30‧‧‧ bracket

32‧‧‧Locks

Claims (9)

The rubber gun bearing bracket fixing piece elastic preloading structure is disposed between the receiving bracket of the glue gun and the gun body, wherein the fixing piece has a plurality of elastic portions, and each elastic portion is integrally formed on The fixing piece abuts the front end surface of the glue gun supporting bracket, and provides a pre-stressing elastic force to the bracket of the glue gun through each elastic portion. The elastic preloading structure of the glue gun carrier bracket fixing piece according to claim 1, wherein each of the elastic portions has a movable slot and an elastic piece; the elastic piece is spanned along the extending direction of the movable slot. The elastic preloading structure of the rubber gun carrier bracket fixing piece according to claim 1, wherein each of the elastic portions has a movable slot and an elastic piece; the elastic piece is fixed at one end of the movable slot and the other end The free end extends along the extending direction of the movable slot and overhangs the active slot. The elastic preloading structure of the rubber gun carrier bracket fixing piece according to the third aspect of the invention, wherein when the elastic portion is disposed in the upper and lower portions, the elastic end of each elastic portion of the elastic portion is disposed at the upper end. The opposite is true. The elastic preloading structure of the rubber gun carrier bracket fixing piece according to claim 3, wherein each elastic portion is disposed at the left end and the right side, and the elastic piece of each elastic portion is disposed at a free end, which is left, The opposite is true. The elastic preloading structure of the glue gun carrier bracket fixing piece according to any one of claims 1 to 5, wherein each of the elastic portions is arranged around the center of the fixing piece to provide a plurality of elastic pre-compensation The amount of pressure. The elastic preloading structure of the glue gun carrier bracket fixing piece according to claim 6, wherein each of the elastic portions is configured in a cross shape, a shape of a cross or a triangle. The elastic preloading structure of the rubber gun carrier bracket fixing piece according to the sixth aspect of the invention, wherein the fixing piece further has a positioning ring portion protruding from the front end surface of the fixing piece to provide the glue The bracket of the gun is set. The elastic preloading structure of the rubber gun carrier bracket fixing piece according to the eighth aspect of the invention, wherein the fixing piece further has a plurality of positioning posts, each of the positioning pillars protruding from the rear end surface of the fixing piece, and providing the glue Gun gun body set position.